UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 10-K

(MARK ONE)

x  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2001

OR

o  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROM ___________ TO _____________

Commission file number 000-30713

Intuitive Surgical, Inc.
(Exact name of Registrant as Specified in its Charter)

 

Delaware	77-0416458
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification Number)

950 Kifer Road
Sunnyvale, California    94086
(Address of Principal Executive Offices including Zip Code)

(408) 523-2100
(Registrant's Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act: None

Securities registered pursuant to Section 12(g) of the Act:
Common Stock, $.0001 Par Value

      Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes xo

      Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of Registrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K, or any amendment to this Form 10-K.    o

      The aggregate market value of the voting stock held by non-affiliates of the registrant, based upon the closing price of Common Stock on March 15, 2002, as reported by Nasdaq, was approximately $279,861,580. Shares of voting stock held by each officer and director and by each person who owns 5% or more of the outstanding voting stock have been excluded in that such persons may be deemed to be affiliates. This assumption regarding affiliate status is not necessarily a conclusive determination for other purposes.

      The number of outstanding shares of the registrant's common stock on March 15, 2002 was 36,372,813.

DOCUMENTS INCORPORATED BY REFERENCE

      Part III -- Portions of the registrant's definitive Proxy Statement to be issued in conjunction with the Registrant's Annual Meeting of Stockholders to be held on May 23, 2002 are incorporated by reference into Part III.

Intuitive Surgical, Inc.

2001 ANNUAL REPORT ON FORM 10-K

INDEX

Part I.		Page
Item 1.	Business	1
Item 2.	Properties	15
Item 3.	Legal Proceedings	16
Item 4.	Submission of Matters to a Vote of Security Holders	17
Part II.
Item 5.	Market for the Registrant's Common Equity and Related Stockholder Matters	17
Item 6.	Selected Financial Data	17
Item 7.	Management's Discussion and Analysis of Financial Condition and Results of Operations	21
Item 7a.	Quantitative and Qualitative Disclosures About Market Risks	38
Item 8.	Financial Statements and Supplementary Data	40
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosures	40
Part III.
Item 10.	Directors and Executive Officers of the Registrant	40
Item 11.	Executive Compensation	42
Item 12.	Security Ownership of Certain Beneficial Owners and Management	42
Item 13.	Certain Relationships and Related Transactions	43
Part IV.
Item 14.	Exhibits, Financial Statement Schedules and Reports on Form 8-K	43
Signatures		79
Exhibits Index		??

PART I

ITEM 1: BUSINESS

FORWARD LOOKING STATEMENTS

This Annual Report on Form 10-K contains forward-looking statements based on our current expectations about our company and our industry. You can identify these forward-looking statements when you see us using words such as "expect," "anticipate," "estimate" and other similar expressions. These forward-looking statements involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of the factors described in the "Risk Factors" section of Management's Discussion and Analysis of Financial Condition and Results of Operations and elsewhere in this report. We undertake no obligation to publicly update any forward-looking statements for any reason, even if new information becomes available or other events occur in the future.

COMPANY BACKGROUND

In this report, "Intuitive Surgical," "we," "us," and "our" refer to Intuitive Surgical, Inc. Intuitive™®, da Vinci™, EndoWrist™, InSite™ and Navigator™ are trademarks of Intuitive Surgical, Inc.

We design and manufacture the da Vinci Surgical System, an advanced surgical system that we believe represents a new generation of surgery -- the third generation. We believe that this new generation of surgery, which we call Intuitive surgery, is a revolutionary advance similar in scope to the previous two generations of surgery -- open surgery and minimally invasive surgery, or MIS. Our da Vinci Surgical System consists of a surgeon's console, a patient-side cart, a high performance vision system and our proprietary instruments. By placing computer-enhanced technology between the surgeon and patient, we believe that our system enables surgeons to perform better surgery in a manner never before experienced. The da Vinci Surgical System seamlessly translates the surgeon's natural hand movements on instrument controls at a console into corresponding micro-movements of instruments positioned inside the patient through small puncture incisions, or ports. Our da Vinci Surgical System is the only commercially available technology that can provide the surgeon with the intuitive control, range of motion, fine tissue manipulation capability and 3-D visualization characteristic of open surgery, while simultaneously allowing the surgeon to work through the small ports of minimally invasive surgery.

In March 1997, surgeons using an early prototype of our technology successfully performed Intuitive surgery on humans. Beginning in May 1998, surgeons using our technology successfully performed what we believe were the world's first computer-enhanced closed chest heart surgeries, including mitral valve repair, dissection of an internal mammary artery and grafting of a coronary artery. In early 2000, surgeons using our technology successfully completed what we believe was the world's first beating heart bypass procedure using only small ports. In July 2000, we received marketing clearance from the U.S. Food and Drug Administration (FDA) for the da Vinci Surgical System to assist in the control of Intuitive Surgical endoscopic instruments including: rigid endoscopes, blunt and sharp endoscopic dissectors, scissors, scalpels, forceps/pickups, needle holders, endoscopic retractors, stabilizers, electrocautery, and accessories during laparoscopic surgical procedures such as cholecystectomy or Nissen fundoplication. We received clearance for a non-cardiac thoracoscopic surgery indication for the product in March 2001. Additionally, in May 2001 we received clearance for use of our products in laparoscopic prostatectomy procedures. As of December 31, 2001, we have sold 89 of our da Vinci Surgical Systems and surgeons using our technology have successfully completed several thousand surgery procedures of various types.

The first generation of surgery, open surgery, remains the predominant form of surgery and is still used in almost every area of the body. However, the large incisions required for open surgery create significant trauma to the patient, resulting in long hospitalization and recovery times, high hospitalization costs, as well as significant pain and suffering. Over the past several decades, the second generation of surgery, MIS surgery, has reduced trauma to the patient by allowing some surgeries to be performed through small ports rather than large incisions, resulting in shorter recovery times, fewer complications and reduced hospitalization costs. MIS surgery has been widely adopted for certain surgical procedures, but it has not been widely adopted for complex procedures. We believe surgeons have been slow to adopt MIS surgery for complex procedures because they generally find that fine tissue manipulations, such as dissecting and suturing, using these techniques are more difficult to learn and perform, and are less precise, than in open surgery.

Intuitive surgery overcomes many of the shortcomings of both open surgery and MIS surgery. Surgeons operate while seated comfortably at a console viewing a bright and sharp 3-D image of the surgical field. This immersive visualization results in surgeons no longer feeling disconnected from the surgical field and the instruments, as they do when using an endoscope in MIS surgery. While seated at the console, the surgeon manipulates instrument controls in a natural manner, just as he or she has been trained to do in open surgery. Our technology is designed to provide surgeons with a range of motion in the surgical field analogous to the motions of a human wrist, while filtering out the tremor inherent in every surgeon's hand. In designing our products, we have focused on making our technology as simple as possible to use. In our experience, based on over a thousand procedures, surgeons can learn to manipulate our instruments with only a short amount of training and can learn to perform Intuitive surgery with less training than is required for MIS surgery.

Our products are designed to make a broad range of open surgical and MIS procedures suitable for Intuitive surgery. The da Vinci Surgical System is designed to allow surgeons to perform better surgery while providing patients with the benefits of MIS surgery. We believe that these advantages will enable us to drive a fundamental change in surgery.

Third Generation Surgery: The Intuitive Surgical Solution

Our technology is designed to return to the surgeon the range of motion, fine tissue control and 3-D vision characteristic of open surgery while simultaneously allowing the surgeon to work through the ports used in MIS surgery. All this is accomplished in an intuitive manner, in the same way that the movements of a surgeon's hands in open surgery are entirely intuitive.

We believe that our technology overcomes many of the limitations of existing MIS surgery in the following ways:

• Natural Instrument Movements. Our technology is designed to directly transform the surgeon's natural hand movements outside the body into corresponding micromovements inside the patient's body. For example, a hand movement to the right outside the body causes the instrument inside the patient to be moved to the right, eliminating the backward nature of existing MIS surgery.
• EndoWrist Instruments Provide Natural Dexterity and Range of Motion. Our technology is designed to provide surgeons with a range of motion in the surgical field analogous to the motions of a human hand and wrist. Our proprietary instruments, which we call EndoWrist instruments, incorporate "wrist" joints that enable surgeons to reach behind tissues and suture with precision, just as they can in open surgery. The surgeon controls the joint's movements from the surgeon's console using natural hand and wrist movements. EndoWrist joints are located near the tips of all of our instruments.
• More Precise Movements and Reduced Tremor. With our technology, the surgeon can also use "motion scaling," a feature that translates, for example, a three millimeter hand movement outside the patient's body into a one millimeter instrument movement in the surgical field inside the patient's body. Motion scaling is designed to allow greater precision than is normally achievable in both open and MIS surgery. In addition, our technology is designed to filter out the tremor inherent in every surgeon's hands.
• Immersive 3-D Visualization. Our vision system, which we call the InSite vision system, is designed to give surgeons the perception that their hands are immersed in the surgical field even though they are outside the patient's body. As a result, we believe that surgeons no longer feel disconnected from the surgical field and the instruments, as they currently do with MIS surgery. In addition, we believe that the InSite system provides a much brighter and sharper image than any other 3-D endoscope vision system. The InSite system also incorporates our proprietary Navigator camera control technology that allows the surgeon to easily change, move, zoom and rotate his or her field of vision. The combination of these features offers what we believe is the most advanced surgical vision system available today.
• Easy to Learn and Perform. In designing our products, we have focused on making our technology as simple as possible to use, even though it is inherently complex. We believe that tissue manipulations using our products are as natural as hand movements in open surgery. In our experience, based on feedback from surgeons who have performed hundreds of procedures, surgeons can learn to manipulate our instruments with only a short amount of training. Learning to perform surgical procedures using the da Vinci Surgical System will vary depending on the complexity of the procedure and the surgical team's experience with MIS surgery techniques.
• Multi-Specialty Surgical Platform. The da Vinci Surgical System is designed to enable surgeons to perform surgery in virtually any part of the body. To date, surgeons have used the da Vinci Surgical System to perform over 100 different types of surgical procedures.

We believe that these advantages give the patient the benefits of less traumatic MIS surgery while restoring to the surgeon the range of motion and fine tissue control possible with open surgery, along with further enhancements such as tremor reduction, motion scaling and superior visualization.

We believe that our technology has the potential to change surgical procedures in three basic ways:

• Convert Open Procedures to Intuitive Surgery. We believe our technology will make a number of surgical procedures that currently are performed only with open surgical techniques suitable for Intuitive surgery.
• Facilitate Difficult MIS Operations. We believe surgical procedures that today are performed only rarely using MIS techniques will be performed routinely and with confidence using Intuitive surgery. Some procedures have been adapted for port-based techniques but are extremely difficult and are currently performed by a limited number of highly skilled surgeons. We believe our da Vinci Surgical System will enable more surgeons at more institutions to perform these procedures.
• Simplify Existing, High-Volume MIS Procedures. We believe surgical procedures that today are performed routinely using MIS techniques will be performed more quickly and safely with Intuitive surgery. For example, over the past decade, approximately 85% of gall bladder removals performed in the United States have been converted to MIS surgery. We believe that the da Vinci Surgical System will make these procedures easier, faster and more cost effective to perform.

INTUITIVE SURGICAL'S PRODUCTS

Our principal products include the da Vinci Surgical System and a variety of "smart disposable" EndoWrist instruments.

da Vinci Surgical System

Surgeon's Console. The da Vinci Surgical System allows the surgeon to operate while comfortably seated at an ergonomic console viewing a 3-D image of the surgical field. The surgeon's fingers grasp the instrument controls below the display with wrists naturally positioned relative to his or her eyes. Using hardware, software, algorithms, mechanics and optics, our technology is designed to seamlessly translate the surgeon's hand movements into precise and corresponding real-time microsurgical movements of the EndoWrist instruments inside the patient.

Patient-Side Cart. The patient-side cart, which can be easily moved next to the operating table, holds electromechanical arms that manipulate the instruments inside the patient. Three arms attached to the cart can be easily positioned as appropriate, and then locked into place. The first two arms, one representing the left hand and one the right hand of the surgeon, hold our EndoWrist instruments. The third arm positions the endoscope, allowing the surgeon to easily change, move, zoom and rotate his or her field of vision.

3-D Vision System. The vision system includes our InSite high resolution 3-D endoscope with two separate vision channels linked to two high resolution, progressively scanned color monitors. The vision system also incorporates our InSite image processing equipment comprised of high performance video cameras, specialized edge enhancement and noise reduction equipment. The resulting 3-D image has high resolution and contrast and no flicker or cross-fading, which occurs in single monitor systems, and minimizes eye fatigue. Our vision system allows the surgeon to move his or her head in the viewer without affecting image quality.

EndoWrist Instruments

We manufacture a variety of EndoWrist instruments, each of which incorporates a wrist joint for natural dexterity, with tips customized for various surgical procedures. These EndoWrist instruments are currently approximately seven millimeters in diameter. The instruments mount onto the electromechanical arms that represent the surgeon's left and right hands and provide the mechanical capability necessary for performing complex tissue manipulations through ports. At their tips, the various EndoWrist instruments include forceps, scissors, electrocautery, scalpels and other surgical tools that are readily familiar to the surgeon from open and MIS surgery. Generally, a variety of EndoWrist instruments are selected and used interchangeably during the surgery. Where instrument tips need to incorporate a disposable component, for example, scalpel blades, we sell disposable inserts. We plan to continue to add new types of EndoWrist instruments for additional types of surgical procedures.

The EndoWrist instruments are "smart disposables" because they are resterilizable and reusable for a defined number of procedures or hours of use. A custom computer chip inside each instrument performs several functions that help determine how the system and instruments work together. When an EndoWrist instrument is attached to an arm of the patient-side cart, the chip performs an "electronic handshake" that ensures the instrument was manufactured by us and recognizes the type and function of the instrument and number of past uses or hours. For example, the chip distinguishes between scissors and a scalpel and controls the unique functions of different instruments as appropriate. In addition, the chip will not allow the instrument to be used for more than the prescribed number of procedures or hours so that its performance meets specifications during each procedure. In addition, we can sell the instrument for a fixed number of uses or hours and effectively price our EndoWrist instruments on a per-procedure or per-hour basis.

USING THE DA VINCI SURGICAL SYSTEM

During a procedure, the patient-side cart is positioned next to the operating table with the electromechanical arms arranged to provide access to the initial ports selected by the surgeon. Metal tubes attached to the arms are inserted through the ports, and the EndoWrist instruments are introduced through the tubes into the patient's body. The surgeon then performs the procedure while sitting comfortably at the surgeon's console, manipulating the instrument controls and viewing the operation through our InSite vision system. When a surgeon needs to change an instrument, as is done many times during an operation, the instrument is withdrawn from the surgical field using the controls at the console, in similar fashion to the way a surgeon withdraws instruments from the patient in MIS surgery. A scrub nurse standing near the patient removes the unwanted instrument from the electromechanical arm and replaces it with the new instrument, in a process designed to be rapid enough not to disturb the natural flow of the procedure. As a result, the scrub nurse plays a role similar to that played in open and MIS surgery. At the conclusion of the operation, the metal tubes are removed from the patient's body and the small incisions are sutured or stapled.

OUR STRATEGY

Our goal is to establish Intuitive surgery as the standard for complex surgical procedures and many other procedures currently performed using either open or MIS surgery. We intend to accomplish this objective both by pioneering new types of endoscopic surgery and by making existing MIS procedures easier, safer and more cost effective. Over time, our strategy is to broaden the number of procedures performed using the da Vinci Surgical System and to educate surgeons and hospitals as to the benefits of Intuitive surgery. Key elements of this strategy include:

Focus on Key Institutions. Our marketing efforts are focused on large multi-specialty care hospitals where a majority of complex surgical procedures are performed. Following the initial placement at a given hospital, we intend to expand the number of physicians who use the da Vinci Surgical System and work with the hospitals and their surgeons to promote patient education as to the benefits of Intuitive surgery. We believe that these efforts will result in increased usage per system, leading to high volume sales of instruments and sales of additional systems at each hospital. In addition, we believe such efforts will benefit early-adopting hospitals by increasing their market share in the procedures and specialties that benefit from Intuitive surgery. We expect these efforts to increase demand for our products among competitive hospitals, surgeons and referring physicians.

Focus on Leading Surgeons to Drive Rapid and Broad Adoption. We will place significant emphasis on marketing the da Vinci Surgical System to leading surgeons who are considered to be the "thought leaders" in their institutions and fields. These surgeons typically perform complex surgical procedures that are currently not adaptable to MIS techniques. For example, cardiac procedures, of which over one million are currently performed annually worldwide, are among the most difficult to perform using MIS techniques. This strategy puts surgeons at the forefront of procedure development and provides them an opportunity to maintain a competitive edge in their specialty. We believe that early adoption of our products by surgical thought leaders will give many other surgeons the confidence that the da Vinci Surgical System can be used for all types of surgical procedures.

Develop Protocols for New Surgical Procedures. We intend to leverage our relationships with key institutions and surgical thought leaders to develop protocols for new surgical procedures. These protocols would include guidance on patient screening, port placement, interaction of the surgical team and advice on the sequence and selection of tools and maneuvers. We believe that establishing protocols for a given procedure will facilitate the broader adoption of Intuitive surgery for that procedure.

Maintain Market Leadership. We intend to maintain our leadership advantage by continuing to develop and enhance our technology and to communicate the benefits of our da Vinci Surgical System to surgeons, hospitals and patients. We will continue to improve our da Vinci Surgical System through software and hardware enhancements and by developing new surgical instruments. We will also continue to develop our surgical platform to facilitate and support future surgical innovations.

CLINICAL CONTRIBUTIONS

We believe our technology is capable of enhancing or enabling a wide variety of procedures in many surgical specialties. To date, surgeons using our da Vinci Surgical System have performed over a thousand surgery procedures of various types including general and vascular surgery, gynecologic and urologic surgery, and cardiovascular surgery. These applications, as well as potential applications for orthopedic surgery, are described below.

General and Vascular Surgery

Aortic Aneurysms. A common vascular procedure is the repair of aortic aneurysms, which are sacs formed by the dilation of the wall of the main artery in the body. Aneurysms are caused primarily by atherosclerosis, which is characterized by the deposition of fatty substances in large and medium-sized arteries, such as the arteries that lead to the heart and brain. Surgical treatment involves clamping the aorta and making long incisions at multiple sites to resect and replace the aneurysm with a synthetic graft. Once the aorta is clamped, time is of the essence, since procedures are typically done without heart/lung bypass machines. Thus, only a narrow window of time for completion is available. Currently, some aneurysms are treated by intravascular stent-grafts. These stent-grafts can be inserted through the main artery in the thigh, called the femoral artery, and do not require an incision. However, the necessity of traversing the femoral artery to gain access to the aorta limits the usage of this technique. We believe that the capability of our technology to deliver to the surgeon enhanced dexterity and the ability to suture grafts, alone or in conjunction with stent-grafts, will help convert this procedure from open surgery to Intuitive surgery.

Aorto-Femoral Bypass. The lower portion of the abdominal aorta is often a location of atherosclerosis. Atherosclerotic blockage of this portion of the aorta restricts blood flow to the lower body. To treat this condition using open surgery, a synthetic graft is attached above and below the blockage. This procedure currently requires open surgery because of the need to suture the grafts in place. We believe that with our technology, surgeons will be able to perform the required suturing of arteries, called an anastomosis, through ports and avoid the large incision currently required.

Cholecystectomy. Removal of the gallbladder, or cholecystectomy, is the most common procedure performed by general surgeons. The procedure is used to treat cholecystitis, which is an inflammation of the gall bladder. Although a minimally invasive approach, called a laparoscopic cholecystectomy, is now well accepted for routine cases, there is great variability in the level of skill required to accomplish the procedure. The skill level necessary to complete a laparoscopic cholecystectomy is dependent on the disease status the surgeon discovers after the abdomen is entered. For example, acute cholecystitis can result in inflammation and the abnormal union of tissues resulting from the formation of new fibrous tissue in the inflammatory process. As a result, very meticulous surgery to access gallbladder anatomy can be required. Similarly, during the operation, the surgeon may find a condition known as choledocolithiasis, or stones in the common bile duct. The surgeon may choose to incise or cut the common duct to extract stones that are caught between the liver and intestine. Exploration of the common bile duct is an extremely delicate procedure that requires micro-sutures to be placed in the common duct. Most surgeons will not do this procedure laparoscopically because of its difficulty. This usually results in a conversion to open technique or another surgical or delicate gastrointestinal endoscopic procedure to extract the stones. With our technology, we believe that the surgeon will have expanded capability to deal with complicated cholecystectomies and can avoid subjecting the patient to a second procedure.

Nissen Fundoplication. Nissen fundoplication is a general surgical procedure that is performed to correct esophageal reflux. Esophageal reflux disease is a digestive disorder that affects the muscle connecting the esophagus with the stomach. As an elective procedure, Nissen fundoplication is currently performed on only a small fraction of candidates who suffer from this condition because the open surgical procedure is quite invasive. An MIS alternative exists, but there are only a limited number of surgeons skilled in the procedure. We believe that our technology will significantly improve the ease of performing the Nissen procedure through ports. Specifically, our technology will address the two most difficult steps in this procedure, which are made more difficult by existing MIS techniques, esophageal dissection and suturing of the fundus of the stomach. If adoption of our technology becomes widespread for Nissen procedures, we believe that the number of surgeons able to perform a Nissen procedure using port-based techniques will increase. Further, we expect that the widespread availability of a port-based approach may significantly expand the number of surgeries performed.

Colon Resection. Removal of the colon or large bowel is a common general surgical procedure done for both benign and malignant disease. Colon resection is accomplished in a variety of ways by removing all or part of the colon. These procedures are complicated and involve resecting a portion of diseased tissue and then re-anastomosing the two ends of the colon to re-establish continuity of intestinal flow. When using existing MIS techniques, the challenge is to have enough manipulating capability to perform fine dissection of the colon and then to be able to sew or staple the ends of the bowel to accomplish the re-anastomosis. The MIS procedure is currently performed by only a small fraction of general surgeons. By making dissection significantly more precise, we believe that our products will allow port-based colon resection to be performed more widely.

Hernia Repair. An inguinal hernia is a condition in which tissue protrudes through the wall of the pelvis. It is caused by a defect or weakness in the lining covering the pelvic region. Repair of inguinal hernia is the second most common procedure done in general surgery. There are a variety of hernia procedures available that use both open and MIS techniques. However, the lack of precise dissection capability inhibits adoption of the MIS procedures. Specifically, the delicate dissection of some of the structures and the peritoneal sac, which often adheres to the pelvic anatomy, is very difficult for surgeons to accomplish using MIS techniques. We believe that our technology will encourage surgeons to convert hernia procedures to the port-based approach by removing the training barrier that limits its adoption.

Gynecologic Surgery

General Gynecology. Laparoscopy has been used for several decades in a large number of diagnostic infertility procedures. Although there are a variety of therapeutic infertility procedures that can currently be performed by some gynecologists using existing MIS techniques, these procedures are relatively difficult to perform using existing MIS tools because of the lack of tissue control, inability to perform fine dissection, and limited suturing capability. We believe that our technology will provide gynecologists with the ability to do sophisticated procedures such as tubal re-anastomosis and dissection of ovarian cysts, as well as common procedures such as surgical removal of an ovary or fallopian tube.

Hysterectomy. Removal of the uterus is one of the most commonly performed surgeries in gynecology and it can be done by using open or MIS techniques. Like colon resection, it demands a significant degree of tissue manipulation in the dissection and ligation, or tying, of blood vessels, ligaments and other pelvic structures. Further, laparoscopic techniques used in this procedure increase the risk of injury to the ureters, which are vital structures that provide the conduit for urine between the kidney and bladder. It is often difficult to ensure the identification and prevention of injury to the ureters and bladder with conventional MIS instruments because of the limited angles at which these instruments can be positioned. We believe that our products will increase the surgeon's dexterity in this procedure and, as a result, will have a significant impact on safety, operating time, and rate of adoption of port-based techniques in hysterectomy.

Bladder Neck Suspension. Bladder incontinence is a widespread condition affecting middle aged women, which can be treated surgically with a procedure known as bladder neck suspension. This procedure involves elevation of the bladder neck by suspension with sutures, surgically recreating the normal angle of the urethra and re-establishing bladder sphincter control. The procedure works well in open surgery and is the "gold standard" for correction of bladder incontinence. However, because of its long recovery time, most candidates are discouraged from undergoing the procedure using open surgical technique. Instead, they use adult diapers for their incontinence, which is an embarrassment and inconvenience. Bladder neck suspension can currently be done laparoscopically but is difficult to perform because of the need to suture at awkward angles using existing MIS instruments. We believe our technology may provide a better solution for suturing the bladder neck and would represent an advance in the ease of performing incontinence surgery.

Orthopedic Surgery

Arthroscopy. Many knee surgeries are accomplished by an MIS technique called arthroscopy. This technique is well accepted in the surgical community. However, many of the more sophisticated maneuvers in arthroscopy, such as suturing torn meniscal tissue, are very difficult with existing MIS instruments. The meniscus is a structure located in the knee joint that provides a surface and cushion upon which the bones of the knee joint can move. We believe that our technology and the capabilities of our EndoWrist instruments will increase the ease with which complex arthroscopic procedures such as advanced knee and shoulder arthroscopy can be performed.

Spinal Surgery. Disc removal and spinal fusion are common procedures performed in open spinal surgery. MIS techniques where surgeons approach the spine through the abdomen and use laparoscopic methods to expose the anterior portion of the spine and lumbar disc space are just emerging. This procedure requires both delicate and precise dissection and retraction of tissue, and would benefit greatly from the enhanced capabilities offered by the da Vinci Surgical System. We believe that our technology may make this procedure safer, easier, more precise, and allow more surgeons to perform it with confidence.

Cardiothoracic Surgery

Internal Mammary Artery Dissection. In a coronary artery bypass graft procedure used in cardiac surgery, a blocked coronary artery is bypassed with a graft. When available, an artery from the chest called the internal mammary artery is dissected from its natural position and grafted into place to perform the bypass. Because the internal mammary artery is located on the underside of the anterior surface of the chest, dissection of the vessel is challenging using existing surgical instruments through the three- to five-inch incision currently used in a coronary artery bypass graft procedure. Our products have multiple joints that emulate the surgeon's shoulders and elbows, allowing exact positioning of the instruments inside the patient's chest. In addition, the EndoWrist joints permit the surgeon to reach behind the tissues for easier dissection of the internal mammary artery. Thus, we believe that the internal mammary artery can be dissected with greater ease and precision using our technology.

Coronary Anastomosis. Coronary artery bypass graft surgery demands that the surgeon delicately dissect and precisely suture very small structures, which are less than two millimeters in diameter, under significant magnification. These procedures are difficult when performed in open surgery. They are even more difficult when performed using an endoscopic or limited incision approach, and extraordinarily difficult to perform when the heart is beating. As a result, this procedure is typically done as open surgery by stopping the heart and using a heart/lung bypass machine. Our technology is designed to allow surgeons to perform scaled instrument movements that can be even more precise than the movements used in open surgery, thus enabling precise suturing of single and multiple coronary vessels on a stopped or beating heart.

Mitral and Aortic Valve Repair/Replacement. Valve repair and replacement surgeries are challenging even when using open surgical techniques. Significant exposure of the surgical field is essential to the identification and precise manipulation of valves and other structures inside the heart, and is key to successful surgical outcomes with minimal complications. Motion scaling allows a surgeon using our da Vinci Surgical System to maneuver instruments inside the patient even more precisely than is possible in open surgery. Our system has already enabled heart valve repairs to be performed through small ports in a manner that could not have been accomplished with open surgery. Replacement of valves currently requires a small incision, even if the majority of the procedure is eventually performed through ports using our technology, because the replacement valve itself is too large to be inserted into the chest through a port. However, new valve designs that can be delivered through ports are being developed, and the small incisions necessary today to deliver a replacement valve to the heart may eventually not be required, allowing a surgeon using the da Vinci Surgical System to replace a valve entirely using ports.

Thoracoscopy. A number of procedures performed in the thorax, or chest cavity, can be accomplished by minimally invasive methods. These methods are generally referred to as thoracoscopic procedures. They include various types of lung resection, biopsy procedures, node dissections, nerve resections and esophageal surgery. Conventional thoracoscopic tools have all the limitations of conventional laparoscopic tools, such as "backward" movement and limited range of motion. The capability of our technology to operate dexterously in the often very small and restrictive space of the chest cavity is believed to offer significant clinical value in the performance of advanced thoracoscopic procedures.

MARKETING AND DISTRIBUTION

We market our products through a direct sales force in the United States and most of Europe. We have also entered into agreements with distributors in Italy and Japan. Our marketing and sales strategy in the United States and Europe involves the use of a combination of area sales managers, technical sales representatives and clinical training specialists. As of December 31, 2001, we had 70 employees in sales and marketing. We expect to significantly increase our sales and marketing force as we expand our business.

The role of our technical sales representatives is to educate physicians and surgeons on the advantages of Intuitive surgery and the clinical applications that our technology makes possible. We also train our technical sales representatives to educate hospital management on the potential benefits of early adoption of our technology and the potential for increased local market share that may result from Intuitive surgery. Once a hospital has installed a da Vinci Surgical System, our sales force will help introduce the technology to other surgical specialties within the hospital.

Clinical training specialists provide training and support to physicians and other hospital staff. We employ service technicians to install our da Vinci™ Surgical Systems and to provide non-clinical technical expertise, service and maintenance. We believe that this combination of technical sales representatives, clinical training specialists and service technicians provides an appropriate balance of professional selling skills while maintaining an appropriate level of technical expertise in the field.

Our da Vinci Surgical System has a lengthy sales and purchase order cycle because it is a major capital item and requires the approval of senior management at purchasing institutions. Particularly during the period in which our sales volume is low, this may contribute to fluctuations in our quarterly operating results.

TECHNOLOGY

Using key technologies, we have designed the da Vinci Surgical System to ensure intuitive control and fail-safe operation of the system. The system updates arm and instrument positions over 1,000 times per second, thereby ensuring real-time connectivity between the surgeon's hand movements and the movements of the instrument tips. A backup battery is included in the system that can power the system for more than 20 minutes in case of power loss or fluctuation. This 20-minute period is believed to be sufficient either to reestablish the power supply or for the hospital back-up power system to become effective.

Monitoring the operation of the system at all times is a network of approximately 20 micro-controllers that checks for proper system performance. System misuse or system fault can be detected and the system can be transitioned to a safe state in micro-seconds. The system also includes a sensor that detects the presence of the surgeon's head in the viewer. If the surgeon removes his or her head from the viewer, the system automatically disengages and locks the instruments in place to prevent their inadvertent movement.

The instrument controls at the surgeon's console have eight degrees of freedom of motion that allow the surgeon to move each hand through a workspace approximately one cubic foot in volume. These degrees of freedom allow the surgeon to orient his or her hands without limitation. The instrument controls are constructed with very low friction cables and gear transmissions to ensure smooth operation. Furthermore, critical components are constructed of magnesium and titanium to provide high mechanical stiffness and low inertia, ensuring a light and responsive feel to the surgeon.

The electromechanical arms of the patient-side cart are gravitationally counterbalanced to allow for smooth, easy and safe positioning of the instruments in the patient. The arms have seven degrees of freedom, allowing for control of position, orientation, translation and grip of the instrument, all inside the body. Redundant sensors are designed to ensure fail-safe operation of the instrument tips.

Unlike other 3-D systems, our InSite vision system relies on two entirely separate vision channels. Two eyepieces are linked by a precisely designed optical assembly to two high resolution, and high contrast medical grade monitors, which have been specially designed to have a high visual update rate that eliminates flicker and thus, reduces eye fatigue. Our stereo endoscope uses two separate high-resolution optical channels to improve image clarity. The stereo images pass through video processing electronics that provide specialized edge enhancement and noise reduction. A foot switch at the surgeon's console operates a focus controller on the endoscope. The endoscope self-regulates the temperature of its tip to eliminate fogging during procedures.

Our EndoWrist instruments use a wrist joint architecture driven by tiny but very high strength, flexible tungsten cables. Each tungsten cable is a "metal rope" constructed from over 200 fibers that are each less than one thousandth of an inch in diameter. These cables are similar in function to the tendons of a human wrist and are used to drive fluid motions of the wrist joint. The instruments each contain a custom memory chip that records and stores data each time the instrument is placed on the system. The chip contains encrypted security codes to protect against use of non-Intuitive Surgical instruments so that only our instruments will work with the da Vinci Surgical System. The chip identifies the type of tool being inserted so that different instrument types can be controlled uniquely by the system. The chip also records usage of the instrument and expires the instrument after its prescribed life.

INTELLECTUAL PROPERTY

Since our inception in late 1995, we have encountered and solved a number of technical hurdles. We have patented and continue to pursue patent and other intellectual property protection for the technology that we have developed to overcome such hurdles. In addition to developing our own patent portfolio, we have spent significant resources in acquiring exclusive license rights to necessary and desirable patents and other intellectual property from SRI International and IBM, who were early leaders in applying robotics to surgery. One of the strengths of our portfolio is that the licensed SRI International and IBM patents have original filing dates as early as January 1992 and June 1991, respectively. We have also exclusively licensed a patent application from MIT concerning robotic surgery. In April 2000, we exclusively licensed an extensive minimally invasive heart surgery patent portfolio from Heartport, Inc. in the field of robotic surgery. These patents cover many different forms of minimally invasive robotic surgery, including single- and multi-vessel coronary artery bypass grafts, heart valve repair and replacement and beating heart stabilization. In June 2001, we entered into a non-exclusive patent license with Olympus Optical Co., Ltd. of Japan for several robotic surgery patents. As of February 19, 2002, we hold exclusive field-of-use licenses for over 70 United States patents and approximately 40 foreign patents, and own outright 15 U.S. patents that expire no earlier than 2016. We also own or have licensed numerous pending United States and foreign patent applications, several of which were recently allowed. Our patents and patent applications relate to a number of important aspects of our technology, including our surgeon's console, electromechanical arms, vision system and our EndoWrist instruments. We intend to continue to file additional patent applications to seek protection for other proprietary aspects of our technology.

Our success will depend in part on our ability to obtain patent and copyright protection for our products and processes, to preserve our trade secrets, to operate without infringing or violating valid and enforceable proprietary rights of third parties, and to prevent others from infringing our proprietary rights. We intend to take action to protect our intellectual property rights when we believe doing so is necessary and appropriate. In addition, our strategy is to actively pursue patent protection in the United States and in foreign jurisdictions for technology that we believe is proprietary and that offers a potential competitive advantage, and to license appropriate technologies when necessary or desirable. We cannot be certain that we will be able to obtain adequate protection for our technology or licenses on acceptable terms. Furthermore, if any protection we obtain is reduced or eliminated, others could use our intellectual property without compensating us, resulting in harm to our business. In addition, the laws of certain foreign countries do not protect intellectual property rights to the same extent as do the laws of the United States. See "Item 7: Management's Discussion and Analysis of Financial Condition and Results of Operations -- Factors Affecting Operating Results." Others may assert that our products infringe their intellectual property rights, which may cause us to engage in costly disputes and, if we are not successful in defending ourselves, could also cause us to pay substantial damages and prohibit us from selling our products. In this regard, see "Item 3: Legal Proceedings" for a description of pending cases and interferences before the U.S. Patent and Trademark Office regarding our da Vinci Surgical System.

SRI International License Agreement

After receiving funding in 1990 from the U.S. Advanced Research Projects Agency, SRI International conducted research to develop a "telesurgery" system to allow surgeons to perform surgery on the battlefield from a remote location. SRI International developed the precise electromechanics, force-feedback systems, vision systems and surgical instruments needed to build and demonstrate a prototype system that could accurately reproduce a surgeon's hand motions with remote surgical instruments. In 1995, John G. Freund, M.D., one of our founders, acquired an option to license SRI International's telesurgery technology, which resulted in SRI International granting us a license.

Under the terms of our license agreement with SRI International, we have an exclusive, worldwide, royalty-free license to use the SRI International technology developed before September 12, 1997, including all patents and patent applications resulting from such work, in the field of manipulating tissues and medical devices in animal and human medicine, including surgery, laparoscopic surgery and microsurgery. We also have the right of first negotiation with respect to any SRI International technology developed in these areas before September 12, 1999 but after September 12, 1997.

Our license with SRI International will terminate upon the last expiration of the patents licensed from SRI International or December 20, 2012, whichever is later. Currently, the last patent expiration date is in 2016, although this could change. SRI International may terminate the license in the event of a material, uncured breach of our obligations. In the event SRI International terminates the license, we cannot assure you that the necessary licenses could be reacquired from SRI International on satisfactory terms, if at all.

IBM License Agreement

IBM conducted research on the application of computers and robotics to surgery during the late 1980s and early 1990s. IBM performed some of this work in conjunction with the Johns Hopkins Medical Center. Our license agreement with IBM covers a number of technologies related to the application of computers and robotics to surgery. Under the terms of this agreement, we have an exclusive, worldwide, royalty-free license to a number of IBM patents and patent applications in the field of surgery performed on animals and humans. We also have a non-exclusive license from IBM to practice in the areas of neurology, ophthalmology, orthopedics and biopsies. Under the license, we were obligated to make two payments to IBM, which were tied to revenue milestones. The final payment became payable in December 2001 and was paid in March 2002. The IBM license agreement will terminate upon the last expiration of the licensed patents. Currently, the last patent expiration date is in 2016, although this could change. IBM could have terminated the license had we failed to make the required payments. IBM may terminate the license in the event of a material, uncured breach of our obligations. In the event IBM terminates the license agreement, we cannot assure you that necessary licenses could be reacquired from IBM on satisfactory terms, if at all.

In March 2001, consistent with the terms of our license agreement with IBM, Intuitive and IBM jointly sued Computer Motion, Inc. in the U.S. District Court for the District of Delaware alleging infringement of U.S. Patent No. 6,201,984. Trial in this case is presently set for the third quarter of 2002. See "Item 3: Legal Proceedings" for a more detailed description of this litigation.

MIT License Agreement

After receiving funding from the U.S. Department of the Army, several researchers at MIT conducted research on various aspects of robotic surgical systems. As a result of that work, several patent applications were filed. Both MIT and the Army waived their rights to all but one of these applications, which the inventors ultimately assigned to us. MIT owns the other application. Under the terms of our license agreement with MIT, we have an exclusive, worldwide, royalty-free license to this patent application in the field of medical devices. The MIT license will terminate upon the last expiration of any patents issuing from the licensed patent application. MIT also has the right to terminate the MIT license in the event of a material, uncured breach of our obligations under the license. In the event MIT terminates the license, we cannot assure you that we would be able to reacquire a license from MIT on satisfactory terms, if at all.

Heartport, Inc. License Agreement

Since its inception in the early 1990s, Heartport, Inc. has developed an extensive patent portfolio covering systems and methods for performing many different aspects of minimally invasive heart surgery, including single- and multi-vessel coronary artery bypass grafts, heart valve repair and replacement, and beating heart stabilization. In April 2000, we acquired an exclusive, worldwide license in the field of robotic surgery to much of Heartport's portfolio, including many issued U.S. patents so far and many still-pending U.S. and foreign applications. The license is royalty-free unless we sell instruments for robotic surgery procedures that are not operated by the robotic surgery system, in which case we pay a small royalty.

Our license will terminate upon the last expiration of the patents licensed from Heartport. Currently, the last patent expiration date is in 2015, although this could change. Heartport may terminate the license in the event of a material, uncured breach of our obligations. In the event Heartport terminates the license, we cannot assure you that the necessary or desirable licenses could be reacquired from Heartport on satisfactory terms, if at all. Intuitive's exclusive license survives Johnson & Johnson's acquisition of Heartport.

In April 2001, Heartport became part of the Cardiovations Division of Ethicon, Inc., a Johnson & Johnson Company. Ethicon, Inc. therefore is now Intuitive's licensor under the Heartport license.

RESEARCH AND DEVELOPMENT

Substantially all of our research and development activity is performed internally. Our research and development team is divided into four groups: software engineering, systems analysis, electrical engineering and mechanical engineering. In addition, various members of the research and development team support the design and development of the manufacturing processes used in fabricating our products.

MANUFACTURING

Prior to February 2002, we leased a 13,000 square foot manufacturing facility in Mountain View, California. We used this facility and our manufacturing personnel to produce the systems and instruments that were sold and used in clinical trials through December 2001. The manufacture of our products is a complex operation involving a number of separate processes and components.

In February 2002, we moved our manufacturing facility to Sunnyvale, California. We now lease approximately 18,000 square feet of manufacturing space.

We purchase both custom and off-the-shelf components from a large number of certified suppliers and subject them to stringent quality specifications. We periodically conduct quality audits of suppliers and have established a supplier certification program. Some of the components necessary for the assembly of our products are currently provided to us by sole source suppliers or single source suppliers. We purchase components through purchase orders rather than long-term supply agreements and generally do not maintain large volumes of inventory. The disruption or termination of the supply of components could cause a significant increase in the costs of these components, which could affect our profitability. A disruption or termination in the supply of components could also result in our inability to meet demand for our products, which could harm our ability to generate revenues, lead to customer dissatisfaction and damage our reputation.

COMPETITION

We consider our primary competition to be existing open or MIS surgical techniques. Our success depends in part on convincing hospitals, surgeons and patients to convert procedures to Intuitive surgery from open or existing MIS surgery.

We also face competition from several companies that are developing new approaches and products for the minimally invasive surgery market, and, in particular, minimally invasive cardiac surgery. Many of these companies have an established presence in the field of MIS, including Boston Scientific Corporation, CardioThoracic Systems, Inc., a division of Guidant Corporation, C.R. Bard, Inc., Guidant Corporation, Heartport, Inc., Ethicon Endo-Surgery, Inc., a division of Johnson & Johnson, Medtronic, Inc., and United States Surgical Corporation, a division of Tyco International Ltd. If we are unable to compete successfully with these companies our revenues will suffer.

In addition, a limited number of companies are using robots and computers in surgery, including Brock Rogers Surgical, Inc., Computer Motion, Inc., Integrated Surgical Systems, Inc., Johns Hopkins University Engineering Research Consortium, Maquet AG, MicroDexterity Systems, Inc., Armstrong Healthcare Ltd., and Ross-Hime Designs, Inc. Our revenues may be reduced or eliminated if our competitors develop and market products that are more effective or less expensive than our products.

We believe that the primary competitive factors in the market we address are capability, safety, efficacy, ease of use, price, quality, reliability, and effective sales, support, training and service. The length of time required for products to be developed and to receive regulatory and reimbursement approval is also an important competitive factor.

GOVERNMENT REGULATION

United States

Our products and operations are subject to extensive and rigorous regulation by the FDA. The FDA regulates the research, testing, manufacturing, safety, labeling, storage, recordkeeping, promotion, distribution, and production of medical devices in the United States to ensure that medical products distributed domestically are safe and effective for their intended uses. In addition, the FDA regulates the export of medical devices manufactured in the United States to international markets.

Under the Federal Food, Drug, and Cosmetic Act (the "FFDCA"), medical devices are classified into one of three classes -- Class I, Class II or Class III -- depending on the degree of risk associated with each medical device and the extent of control needed to ensure safety and effectiveness. Our current products are Class II medical devices.

Class I devices are those for which safety and effectiveness can be assured by adherence to a set of guidelines, which include compliance with the applicable portions of the FDA's Quality System Regulation ("QSR"), facility registration and product listing, reporting of adverse medical events, and appropriate, truthful and non-misleading labeling, advertising, and promotional materials (the "General Controls"). Some Class I devices also require premarket clearance by the FDA through the 510(k) premarket notification process described below.

Class II devices are those which are subject to the General Controls and most require premarket demonstration of adherence to certain performance standards or other special controls, as specified by the FDA, and clearance by the FDA. Premarket review and clearance by the FDA for these devices is accomplished through the 510(k) premarket notification procedure. For most Class II devices, the manufacturer must submit to the FDA a premarket notification submission, demonstrating that the device is "substantially equivalent" to either:

(1) a device that was legally marketed prior to May 28, 1976, the date upon which the Medical Device Amendments of 1976 were enacted, or

(2) to another commercially available, similar device which was subsequently cleared through the 510(k) process.

If the FDA agrees that the device is substantially equivalent, it will grant clearance to commercially market the device. By regulation, the FDA is required to clear a 510(k) within 90 days of submission of the application. As a practical matter, clearance often takes longer. The FDA may require further information, including clinical data, to make a determination regarding substantial equivalence. If the FDA determines that the device, or its intended use, is not "substantially equivalent", the FDA will place the device, or the particular use of the device, into Class III, and the device sponsor must then fulfill much more rigorous premarketing requirements.

A Class III product is a product which has a new intended use or uses advanced technology that is not substantially equivalent to a use or technology with respect to a legally marketed device. The safety and effectiveness of Class III devices cannot be assured solely by the General Controls and the other requirements described above. These devices almost always require formal clinical studies to demonstrate safety and effectiveness.

Approval of a premarket approval application ("PMA") from the FDA is required before marketing of a Class III product can proceed. The PMA process is much more demanding than the 510(k) premarket notification process. A PMA application, which is intended to demonstrate that the device is safe and effective, must be supported by extensive data, including data from preclinical studies and human clinical trials and existing research material, and must contain a full description of the device and its components, a full description of the methods, facilities, and controls used for manufacturing, and proposed labeling. Once the FDA determines that an application is sufficiently complete to permit a substantive review, the FDA will accept the application for review. The FDA, by statute and by regulation, has 180 days to review a filed PMA application, although the review of an application frequently occurs over a significantly longer period of time, sometimes up to several years. In approving a PMA application or clearing a 510(k) application, the FDA may also require some form of post-market surveillance, whereby the manufacturer follows certain patient groups for a number of years and makes periodic reports to the FDA on the clinical status of those patients when necessary to protect the public health or to provide additional safety and effectiveness data for the device.

When FDA approval of a Class I, Class II or Class III device requires human clinical trials, and if the device presents a "significant risk" (as defined by the FDA) to human health, the device sponsor is required to file an investigational device exemption ("IDE") application with the FDA and obtain IDE approval prior to commencing the human clinical trial. If the device is considered a "non-significant" risk, IDE submission to the FDA is not required. Instead, only approval from the Institutional Review Board overseeing the clinical trial is required. Human clinical studies are generally required in connection with approval of Class III devices and to a much lesser extent for Class I and II devices.

In addition, our manufacturing processes are required to comply with the FDA's Good Manufacturing Practice (GMP) requirements contained in its Quality System Regulation (QSR). The QSR covers, among other things, the methods and documentation of the design, testing, production, processes, controls, quality assurance, labeling, packaging, and shipping of the Company's products. The QSR also requires maintenance of a device master record, device history record, and complaint files. The Company's domestic facility, records, and manufacturing processes are subject to periodic unscheduled inspections by the FDA.

In July 1997, we received 510(k) clearance from the FDA for the surgeon's console and patient cart to be used with only rigid endoscopes, blunt dissectors, retractors and stabilizer instruments. In November 1997, we withdrew a subsequent 510(k) submission covering additional instruments necessary for performing most surgical procedures, including scissors, scalpels, forceps/pickups, needle holders, clip appliers and electrocautery, after the FDA indicated that substantial clinical data would be required to support clearance.

In January 1999, we filed a 510(k) submission with clinical data, seeking clearance for the da Vinci Surgical System and EndoWrist instruments for laparoscopic surgical procedures. In May 1999, the FDA determined that our products were not eligible for 510(k) clearance but would instead be required to undergo the PMA approval process. On June 16, 1999, after review of the clinical data on the use of our products in laparoscopic surgical procedures, the FDA's General Surgery Advisory Panel recommended approval. In November 1999, we filed a PMA application to commercialize our products for laparoscopic surgery, which was accepted for review by the FDA in December 1999. In March 2000, the FDA inspected our Mountain View facility and determined, after conducting an extensive audit, that our facility and manufacturing practices were consistent with Good Manufacturing Processes. In June 2000, the FDA determined that the PMA approval process was inappropriate for the da Vinci Surgical System and re-classified the device as class II. The Premarket Approval Application submitted in November 1999 was closed and the original 510(k) application reactivated. In July 2000, we received a letter from the FDA informing us of their decision to clear the da Vinci Surgical System for use in laparoscopic surgery. The decision to reclassify the device to class II also means that future submissions for the da Vinci Surgical System may be reviewed under the premarket notification process unless changes to the intended use significantly change the safety and effectiveness of the device, in which case a PMA may be required.

Subsequent to Intuitive's July 2000 clearance of the da Vinci Surgical System, we have obtained additional 510(k) clearances from the FDA to include non-cardiac thoracoscopic surgical procedures (March 2001) and laparoscopic radical prostatectomy (May 2001). In November 2000, we submitted an investigational device exemption application to the FDA requesting permission to conduct a multi-center clinical evaluation of the da Vinci Surgical System for mitral valve repair. In December 2000, we received a letter from the FDA approving the trials for mitral valve repair. We have commenced this clinical trial and, if completed, we expect to submit a 510(k) to the FDA requesting permission to expand the intended use for the da Vinci Surgical System to include mitral valve repair. In July 2001, we submitted an investigational device exemption application to the FDA requesting permission to conduct a multi-center evaluation of the da Vinci Surgical System for atrial septal defect closure. In August 2001, we received a letter from the FDA approving trials for atrial septal defect closure. We have commenced this clinical trial and, if completed, we expect to submit a 510(k) to the FDA requesting permission to expand the intended use for the da Vinci Surgical System to include atrial septal defect closure. In January 2001, we submitted an investigational device exemption application to the FDA requesting permission to conduct a multi-center evaluation of the da Vinci Surgical System for totally endoscopic coronary artery bypass grafting. In April 2001, we received a letter from the FDA approving trials for totally endoscopic coronary artery bypass grafting. We have commenced this clinical trial and, if completed, we expect to submit a 510(k) to the FDA requesting permission to expand the intended use for the da Vinci Surgical System to include totally endoscopic coronary artery bypass grafting. While each of these trials is in progress, we cannot assure you that such trials will produce clinical data adequate to support a 510(k) application.

We are subject to inspection and market surveillance by the FDA to determine compliance with regulatory requirements. If the FDA finds that we have failed to comply, the agency can institute a wide variety of enforcement actions, ranging from a public warning letter to more severe sanctions. The FDA also has the authority to request repair, replacement or refund of the cost of any medical device manufactured or distributed by us. Our failure to comply with applicable requirements could lead to an enforcement action that may have an adverse effect on our financial condition and results of operations.

California Regulation

The state of California requires that we obtain a license to manufacture medical devices and subjects us to periodic inspection. Our facilities and manufacturing processes were inspected in February 1998. We passed the inspection and received our device manufacturing license from the Food and Drug Branch (FDB) of the California Department of Health Service in March 1998. In March 2002, our facilities and manufacturing processes in our Sunnyvale facility were re-inspected by the FDB. We passed this audit and are awaiting issuance of our device manufacturing license renewal.

Foreign Regulation

In order for us to market our products in other countries, we must obtain regulatory approvals and comply with extensive safety and quality regulations in other countries. These regulations, including the requirements for approvals or clearance and the time required for regulatory review, vary from country to country. Failure to obtain regulatory approval in any foreign country in which we plan to market our products may harm our ability to generate revenue and harm our business.

Commercialization of medical devices in Europe is regulated by the European Union. The European Union presently requires that all medical products bear the CE mark, an international symbol of adherence to quality assurance standards and demonstrated clinical effectiveness. Compliance with the Medical Device Directive, as certified by a recognized European Notified Body, permits the manufacturer to affix the CE mark on its products. In January 1999, following an audit of our quality system and Mountain View facility, we received permission from DGM, our Notified Body and agent of the Danish Government, to affix the CE mark to our da Vinci Surgical System and EndoWrist instruments for general surgical use, Class II-b. Additional CE approvals for use of our da Vinci Surgical System and EndoWrist instruments in cardiac surgery were received in September 1999 and February 2000, Class III.

If we modify existing products or develop new products in the future, we will need to apply for permission to affix the CE mark to such products. In addition, we will be subject to annual regulatory audits in order to maintain the CE mark permissions we have already obtained. We cannot be certain that we will be able to obtain permission to affix the CE mark for new or modified products or that we will continue to meet the quality and safety standards required to maintain the permissions we have already received. If we are unable to maintain permission to affix the CE mark to our products, we will no longer be able to sell our products in member countries of the European Union.

The Ministry of Health and Welfare regulates commercialization and reimbursement of medical devices in Japan. We have developed a clinical trial strategy for laparoscopic surgical use of the da Vinci Surgical System and EndoWrist instruments with our commercial partner in Japan. In May 2001 the proposed clinical trial strategy was approved by the Ministry of Health and Welfare. We commenced this clinical trial in June 2001 and, if completed, we expect to submit appropriate documentation to the Ministry of Health and Welfare requesting permission to commercialize the da Vinci Surgical System for conduct of laparoscopic surgical procedures in Japan. We are currently in the process of developing a cardiothoracic surgical clinical strategy with our commercial partner to facilitate conduct of an evaluation ultimately permitting expansion of the intended use for da Vinci Surgical System to include various cardiothoracic surgical procedures. However, we cannot assure you that we will succeed in procuring the required approvals to market our products in Japan or elsewhere, even if we develop a strategy and ultimately apply for these approvals.

THIRD-PARTY REIMBURSEMENT

In the United States and international markets where we intend to sell our products, the government and health insurance companies together are responsible for hospital and surgeon reimbursement for virtually all surgical procedures. Governments and insurance companies generally reimburse hospitals and physicians for surgery when the procedures are considered non- experimental and non-cosmetic. In the United States, reimbursement for medical procedures under the Medicare and Medicaid programs is administered by Centers for Medicare & Medicaid Services. Generally speaking, procedure codes are assigned by the American Medical Association using the copyrighted Current Procedural Terminology codes, which are in turn incorporated in the Medicare and Medicaid programs coding system. Applications for new procedure codes may be submitted to the American Medical Association.

Governments and insurance companies carefully review and increasingly challenge the prices charged for medical products and services. Reimbursement rates from private companies vary depending on the procedure performed, the third-party involved, the insurance plan involved, and other factors. Medicare reimburses hospitals a prospectively determined fixed amount for the costs associated with an in-patient hospitalization based on the patient's discharge diagnosis, and reimburses physicians a prospectively determined fixed amount based on the procedure performed. This fixed amount is paid regardless of the actual costs incurred by the hospital or physician in furnishing the care and is unrelated to the specific devices used in that procedure. Thus, any reimbursements that hospitals obtain for performing surgery with our products will generally have to cover any additional costs that hospitals incur in purchasing our products.

Domestic institutions will typically bill the services performed with our products to various third-party payors, such as Medicare, Medicaid and other government programs and private insurance plans. Because the da Vinci Surgical System has been cleared for commercial distribution in the United States by the FDA, Medicare reimbursement is available for use of the device in laparoscopic and thoracoscopic procedures and procedures conducted under an approved investigational device exemption application. We believe that the additional procedures we intend to target are generally already reimbursable by government agencies and insurance companies. If hospitals do not obtain sufficient reimbursement from third-party payors for procedures performed with our products, or if governmental and private payors' policies do not permit reimbursement for surgical procedures performed using our products, we may not be able to generate the revenues necessary to support our business. In such circumstances, we may have to apply to the American Medical Association for a unique Current Procedural Terminology code covering computer-enhanced surgery. If an application for a unique code is required, reimbursement for any use of our products may be unavailable until an appropriate code is granted. The application process, from filing until adoption of a new code, can take two or more years.

In countries outside the United States, reimbursement is obtained from various sources, including governmental authorities, private health insurance plans, and labor unions. In most foreign countries, private insurance systems may also offer payments for some therapies. Additionally, health maintenance organizations are emerging in certain European countries. To effectively conduct our business, we may need to seek international reimbursement approvals, and we do not know if these required approvals will be obtained in a timely manner or at all.

Any regulatory or legislative developments in domestic or foreign markets that eliminate or reduce reimbursement rates for procedures performed with our products could harm our ability to sell our products or cause downward pressure on the prices of our products, either of which would affect our ability to generate the revenues necessary to support our business.

EMPLOYEES

As of December 31, 2001, we had 241 employees, 50 of whom were engaged directly in research and development, 81 in manufacturing and service and 110 in marketing, sales, and administrative activities. None of our employees are covered by a collective bargaining agreement, and we consider our relationship with our employees to be good.

ITEM 2: PROPERTIES

We leased approximately 50,000 square feet in Mountain View, California. The lease expired in February 2002 and was not renewed.

Effective January 2002, we lease approximately 83,000 square feet in Sunnyvale, California. The facility is leased through April 2007, and we have an option to extend the lease for an additional five-year term.

ITEM 3: LEGAL PROCEEDINGS

On May 10, 2000, Computer Motion, Inc. filed a lawsuit in United States District Court for the Central District of California (Case No. CV00-4988 CBM) alleging that by making, using, selling or offering for sale our da Vinci Surgical System, we are infringing United States Patent Numbers 5,524,180, 5,762,458, 5,815,640, 5,855,583, 5,878,193, 5,907,664, and 6,001,108, in willful disregard of Computer Motion's patent rights. On June 1, 2000, Computer Motion amended its lawsuit to allege that we also infringe U.S. Patent Number 6,063,095. On October 30, 2000, Computer Motion filed a motion seeking to add U.S. Patent Number 6,102,850 to the litigation. Each of these nine patents concerns methods and devices for conducting various aspects of robotic surgery. Until February 2001, the litigation was proceeding in the early stages of discovery, with no trial date set. In February 2001, in response to our request, the District Court stayed -- put on hold -- all proceedings in the litigation because of the declaration by the U.S. Patent and Trademark Office ("PTO") of three "interference" proceedings between a single SRI patent application exclusively licensed to us and three of Computer Motion's patents (see next paragraph). In February 2002, the District Court extended the stay through a status conference presently scheduled for late March 2002 at which the parties will discuss with the Court the propriety of further extending the stay through decisions by the PTO in the interferences. The Computer Motion action seeks damages based upon the making, using, selling and offering for sale of our products and processes, and seeks to enjoin our continued activities relating to these products. This action subjects us to potential liability for damages, including treble damages, and could require us to cease making, using or selling the affected products, or to obtain a license in order to continue to manufacture, use or sell the affected products. While we continue to believe we have multiple meritorious defenses to this action, we cannot assure you that we ultimately will prevail on any issue in the litigation or that we will be able to successfully defend Computer Motion's charges, nor can we provide assurance that any license required would be made available on commercially acceptable terms, if at all. Failure to successfully defend against the Computer Motion action could harm our business, financial condition and operating results. Due to the inherent uncertainties of litigation, we cannot accurately predict the ultimate outcome of this matter at this time and, therefore, cannot estimate the range of possible loss.

On December 7 and 8, 2000, the PTO declared three interferences between a single SRI patent application exclusively licensed to Intuitive and three of Computer Motion's patents, Numbers 5,855,583, 5,878,193 and 5,907,664. An interference is a proceeding within the U.S. Patent Office to resolve questions regarding the patentability of inventions and who first invented subject matter claimed by two or more patents or patent applications. These three interferences resulted from requests for interference filed in May through July 1999. Because the SRI patent application licensed to Intuitive was filed in January 1992 and Computer Motion's three patents were filed no earlier than August 1992 and as late as February 1996, SRI/Intuitive is the "Senior Party" in each interference. As "Junior Party," Computer Motion bears the burden of proving that it is entitled to keep its patents. In papers filed with the PTO in March 2001, Computer Motion admitted that SRI/Intuitive filed for its involved patent application before Computer Motion thought of its inventions. We therefore anticipate that a second "priority" phase of each interference to determine which party invented the technology first will be unnecessary. During the first half of 2001, the parties filed over 20 motions in the three interferences. On October 10, 2001, the PTO held a hearing on all motions filed in all three interferences. Decisions regarding all of the motions are presently expected by the end of April 2002.

In September 2000, we filed a Notice of Opposition in the European Patent Office ("EPO") challenging European Patent No. 653,922, which was issued to Computer Motion in 1999 and is related to several of the patents now involved in the California litigation and the interference proceedings. An Opposition proceeding allows the EPO to determine whether the challenged patent should be revoked in its entirety, should be amended, or should remain unaltered. In its Notice of Opposition, Intuitive cited numerous prior art references not cited to the EPO during the '922 patent's original prosecution. A hearing is expected sometime in 2002.

On March 30, 2001, Intuitive and International Business Machines Corporation ("IBM") jointly filed suit against Computer Motion, Inc. in the U.S. District Court for the District of Delaware. The complaint alleges that by continuing to make, use, sell, and offer for sale its AESOP and ZEUS voice-controlled products, Computer Motion willfully infringes U.S. Patent No. 6,201,984. The '984 patent which concerns various aspects of voice control of surgical instruments issued to IBM in early March 2001 and is exclusively licensed to us. The '984 patent predates by several years Computer Motion's development of voice-controlled surgical robots. Because Computer Motion's voice-controlled HERMES product interfaces with the AESOP and ZEUS products, HERMES is also implicated in the patent infringement complaint. Trial is presently set for the third quarter of 2002. The Court so far has denied Computer Motion's request to add its own U.S. Patent No. 6,244,809 to this Delaware litigation and has refused to entertain Computer Motion's allegations that we infringe the '809 patent by making, using, selling and offering for sale our da Vinci Surgical System. The Delaware Court has also refused Computer Motion's request to transfer the litigation to California.

On September 1, 2000, Brookhill-Wilk 1, LLC ("Wilk") filed a lawsuit in the United States District Court for the Southern District of New York (Case No. 00 Civ. 6599 (NRB) alleging that by making, using, selling or offering for sale our da Vinci Surgical System, we are infringing U.S. Patent Nos. 5,217,003 and 5,368,015 in willful disregard of Wilk's patent rights. These patents concern methods and devices for "remote" surgery. In March 2001, Wilk withdrew its assertion of infringement of the '015 patent against Intuitive, leaving only the '003 patent at issue in the suit. On November 8, 2001, the District Court granted summary judgment of noninfringement of the '003 patent in our favor and dismissed Wilk's complaint in its entirety. Wilk has since filed a notice with the U.S. Court of Appeals for the Federal Circuit to appeal the summary judgment ruling. Briefing on the appeal should conclude in mid-2002, with a hearing date possible towards the end of 2002 or in early 2003. We believe the appellate court will uphold the summary judgment of noninfringement. If we lose Wilk's suit against us, it will hurt our competitive position, may be costly to us and may prevent us from selling our products. In addition, if we lose the patent suit, we may need to obtain from Wilk a license to this technology if we are to continue to market our products that have been found to infringe Wilk's patents. This license could be expensive, which could seriously harm our business. We believe that we have multiple meritorious defenses in this action. However, litigation is unpredictable and we may not prevail with any of these defenses. If Wilk is successful in its suit against us and is unwilling to grant us a license, we may be required to stop selling our products that are found to infringe Wilk's patents unless we can redesign them so they do not infringe Wilk's patents, which we may be unable to do. In addition, if we lose the patent suit, we could be required to pay Wilk damages, including treble damages, which could be substantial and harm our financial position.

ITEM 4: SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

None.

PART II

ITEM 5: MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

PRICE RANGE OF COMMON STOCK

Our common stock has been traded on The Nasdaq Stock Market under the symbol "ISRG" since June 13, 2000. The following table sets forth the high and low sales prices of our Common Stock for the periods indicated and are as reported by Nasdaq.

QUARTER	HIGH	LOW
Year Ended December 31, 2001: First Quarter Second Quarter Third Quarter Fourth Quarter	$ 9.1250 14.7800 14.1500 10.7500	$ 4.8750 3.0000 4.9900 6.0100
Year Ended December 31, 2000: Second Quarter Third Quarter Fourth Quarter	$ 11.1250 19.0625 15.0625	$ 7.8750 9.4375 5.3750

As of December 31, 2001, there were approximately 288 stockholders of record of our common stock, although we believe that there are a significantly larger number of beneficial owners of our common stock.

DIVIDEND POLICY

We have never declared or paid any cash dividends. We currently expect to retain earnings for use in the operation and expansion of our business, and therefore do not anticipate paying any cash dividends for at least the next three years.

ITEM 6: SELECTED CONSOLIDATED FINANCIAL DATA

The following selected consolidated financial data should be read in conjunction with the Consolidated Financial Statements and the accompanying Notes to such consolidated statements and "Management's Discussion and Analysis of Financial Condition and Results of Operations" included elsewhere in this Form 10-K. The selected data in this section is not intended to replace the consolidated financial statements.

                                                           Year Ended December 31,
                                            -----------------------------------------------------
                                              2001       2000       1999       1998       1997
                                            ---------  ---------  ---------  ---------  ---------
                                                      (In Thousands, Except Per Share Data)
CONSOLIDATED STATEMENTS OF
OPERATIONS DATA:
Sales..................................... $  51,673  $  26,624  $  10,192  $     --   $     --
Cost of sales.............................    28,218     18,031      9,273        --         --
                                            ---------  ---------  ---------  ---------  ---------
Gross profit..............................    23,455      8,593        919        --         --
                                            ---------  ---------  ---------  ---------  ---------
Operating costs and expenses:
  Research and development................    13,851     11,734     11,130     23,208     14,282
  Selling, general and administrative.....    29,987     19,136      9,338      7,565      4,434
  Technology license......................       --         --         --         --       6,000
                                            ---------  ---------  ---------  ---------  ---------
          Total operating expenses........    43,838     30,870     20,468     30,773     24,716
                                            ---------  ---------  ---------  ---------  ---------
Loss from operations......................   (20,383)   (22,277)   (19,549)   (30,773)   (24,716)
Interest income (expense), net............     3,683      3,754      1,134      1,330      1,114
                                            ---------  ---------  ---------  ---------  ---------
Net loss.................................. $ (16,700) $ (18,523) $ (18,415) $ (29,443) $ (23,602)
                                            =========  =========  =========  =========  =========

Basic and diluted net loss per share...... $   (0.47) $   (0.78) $   (3.81) $   (8.14) $  (11.24)
                                            =========  =========  =========  =========  =========
Shares used in computing basic and
  diluted net loss per share..............    35,815     23,796      4,837      3,619      2,100
                                            =========  =========  =========  =========  =========


                                                                  December 31,
                                            -----------------------------------------------------
                                              2001       2000       1999       1998       1997
                                            ---------  ---------  ---------  ---------  ---------
                                                                 (In Thousands)
CONSOLIDATED BALANCE SHEET DATA:
Cash, cash equivalents and short-term
  investments............................. $  66,661  $  89,441  $  26,260  $  23,220  $  32,674
Working capital...........................    67,922     83,836     22,023     19,817     25,424
Total assets..............................   100,361    112,421     34,455     28,167     35,674
Notes payable, less current portion.......       771      1,861      2,521      2,438        897
Deferred compensation.....................      (886)    (2,483)      (943)    (1,128)    (1,831)
Accumulated deficit.......................  (110,370)   (93,670)   (75,147)   (56,732)   (27,289)
Total stockholders' equity................    78,293     90,730     22,211     20,596     27,331

The consolidated statements of operations data for the years ended December 31, 2001, 2000, and 1999, and the consolidated balance sheet data at December 31, 2001 and 2000 are derived from our consolidated financial statements which have been audited by Ernst & Young LLP and included elsewhere in this Form 10-K. The consolidated statement of operations data for the years ended December 31, 1998 and 1997 and the consolidated balance sheet data at December 31, 1999, 1998, and 1997 are derived from our audited consolidated financial statements that are not included in this Form 10-K. Historical results are not indicative of the results to be expected in the future.

ITEM 7: MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis should be read in conjunction with "Selected Consolidated Financial Data" and our consolidated financial statements and the related notes.

Except for historical information, the discussion in this report contains forward-looking statements that involve risks and uncertainties, such as statements of our plans, objectives, expectations and intentions. The cautionary statements made in this report should be read as applying to all related forward-looking statements wherever they appear in this report. Our actual results could differ materially from those discussed here. Factors that could cause or contribute to these differences include those discussed in "-- Factors Affecting Operating Results" below as well as those discussed elsewhere.

OVERVIEW

We design, manufacture, and market the da Vinci Surgical System, an advanced surgical system that we believe represents a new generation of surgery. The da Vinci Surgical System consists of a surgeon's console, a patient-side cart, a high performance vision system and proprietary instruments. The da Vinci Surgical System seamlessly translates the surgeon's natural hand movements on instrument controls at a console into corresponding micro-movements of instruments positioned inside the patient through small puncture incisions, or ports. We believe that the da Vinci Surgical System is the only commercially available technology that can provide the surgeon with the intuitive control, range of motion, fine tissue manipulation capability and 3-D visualization characteristic of open surgery, while simultaneously allowing the surgeon to work through the small ports of minimally invasive surgery or MIS. By placing computer-enhanced technology between the surgeon and the patient, we believe that the da Vinci Surgical System enables surgeons to perform better surgery while giving patients the benefits of MIS surgery, including decreased trauma and postoperative pain, reduced surgical complications, shorter hospital stays and lower total treatment costs.

In 1999, we obtained permission from the European Union to affix the CE Mark to the da Vinci Surgical System and EndoWrist instruments for general surgical and cardiac surgical use. Based on this approval, we recognized revenue for the first time in the second quarter of 1999 for the sale of our products. In July 2000, we received clearance from the U.S. Food and Drug Administration, the FDA, to begin commercialization of our da Vinci Surgical System in the United States for use in laparoscopic surgical procedures. In March 2001, we received clearance from the FDA for use of our da Vinci Surgical System in non-cardiac thoracoscopic surgical procedures. In May 2001, we received market clearance from the FDA to promote use of the da Vinci Surgical System for performance of laparoscopic radical prostatectomy procedures.

To date, the majority of our revenues have come from the sales of the da Vinci Surgical System, which are high revenue dollar items. A smaller percentage of revenues have come from sales of EndoWrist instruments and accessories, which are lower revenue dollar items. A small percentage of revenue also comes from ongoing service of installed da Vinci Surgical Systems. Although we expect the majority of our revenues to continue to come from the sale of da Vinci Surgical Systems over the next few years, the percentage of revenue from our EndoWrist instruments and service should continue to increase. Due to the high dollar revenue per system sold, small variations in system unit sales may cause revenue to vary significantly from quarter to quarter. During the useful life of each installed da Vinci Surgical System, we expect to generate recurring revenue through sales of the EndoWrist instruments and accessories and ongoing service.

RESULTS OF OPERATIONS

Sales. Sales for the fiscal year ended December 31, 2001 were $51.7 million, up 94% from $26.6 million for the fiscal year ended December 31, 2000. The sales increase was primarily due to an increase in the number of da Vinci Surgical Systems sold to 49 in 2001 from 28 in 2000. Fiscal year 2000 sales were up $16.4 million, or 161%, from $10.2 million for the fiscal year ended December 31, 1999. The sales increase was primarily due to an increase in the number of da Vinci Surgical Systems sold to 28 in 2000 from 12 in 1999.

Gross Profit. Gross profit for the fiscal year ended December 31, 2001 was $23.5 million, or 45% of sales, compared to $8.6 million, or 32% of sales in the previous fiscal year. The improvement in gross profit compared to the prior year resulted from sales growth and increased manufacturing efficiencies. Fiscal year 2001 and 2000 gross profit were both negatively impacted by a $1.0 million non-routine royalty charge that became due to IBM when Intuitive Surgical exceeded $50.0 million in annual revenue in 2001 and $25.0 million in 2000. Excluding the impact of this charge, fiscal year 2001 gross profit would have been $24.5 million, or 47% of sales, and fiscal year 2000 gross profit would have been $9.6 million or 36% of sales. The 2001 royalty payment represents the final royalty obligation under our agreement with IBM.

Fiscal year 1999 gross profit was $919,000, or 9%. Fiscal year 1999 was the first year in which revenue was recognized.

Research and Development Expenses. Fiscal year 2001 research and development costs were $13.9 million, up 18% from $11.7 million in fiscal year 2000. The increase was due to headcount increases and higher prototype material costs. Fiscal year 2000 research and development expenses of $11.7 million were up 5% from $11.1 million in 1999. The increase was primarily due to headcount increases, offset by a decrease caused by classifying manufacturing costs as cost of sales instead of research and development beginning in the second quarter of 1999, as sales were recorded for the first time, and lower fiscal year 2000 prototype materials costs.

Research and development expenses include costs associated with the design, development, testing and enhancement of our products. These enhancements represent significant improvements to our products. Research and development expenses also include expenditures for clinical trials and purchases of laboratory supplies. Research and development costs are expensed as incurred. We expect to continue to make substantial investments in research and development and anticipate that research and development expenses will continue to increase in the future.

Selling, General and Administrative Expenses. Selling, general and administrative expenses for fiscal year 2001 were $30.0 million, up 57% from $19.1 million for fiscal year 2000. The year-over-year increase was due in large part to increases in headcount in the field service and sales functions to support increased revenue and a larger installed base of da Vinci Surgical Systems. Selling, general and administrative expenses for fiscal year 2000 were $9.8 million higher than fiscal 1999 expenses of $9.3 million. This increase was primarily due to headcount increases resulting from growing sales and marketing activities as the da Vinci Surgical System received US FDA clearance in fiscal year 2000.

Selling, general and administrative expenses include personnel costs for sales, marketing and administrative personnel, tradeshow expenses, legal expenses, regulatory fees and general corporate expenses. Selling, general and administrative expenses are expected to increase in the future to support our expanding business.

Deferred Compensation. We record deferred compensation as the difference between the exercise price of options granted and the fair value of our common stock at the time of grant for financial reporting purposes. Deferred compensation is amortized to research and development expenses and selling, general and administrative expenses. For the years ended December 31, 2001, 2000 and 1999, the Company recorded amortization of deferred stock compensation of $1.6 million, $2.5 million and $865,000, respectively. For fiscal years 2001, 2000 and 1999 non-cash deferred compensation expense included in research and development expenses was $1.0 million, $1.9 million and $653,000, respectively. For fiscal years 2001, 2000 and 1999 non-cash deferred compensation expense included in selling, general and administrative expenses was $560,000, $684,000 and $212,000, respectively. Deferred compensation recorded through December 31, 2001 was $8.9 million with accumulated amortization of $8.0 million. The remaining $886,000 will be amortized over the remaining vesting periods of the options, generally four years from the date of grant, using a graded-vesting method. Future amortization of deferred compensation at December 31, 2001 is as follows: 2002 -- $662,000; and 2003 -- $227,000. The amount of deferred compensation expense to be recorded in future periods may decrease if unvested options for which deferred compensation has been recorded are subsequently canceled.

Interest Income. Interest income decreased 8% to $3.9 million for the fiscal year ended December 31, 2001 from $4.3 million in fiscal 2000. The decrease resulted primarily from lower interest rates earned on cash and short-term investment balances in 2001. Fiscal year 2000 interest income was $2.8 higher than fiscal year 1999 resulting from higher cash and short-term investment balances, driven by the exercise of warrants to purchase preferred stock in March 2000, yielding approximately $34.8 million in net proceeds, and our initial public offering in June and July 2000, which raised net proceeds of approximately $46.8 million.

LIQUIDITY AND CAPITAL RESOURCES

Prior to our initial public offering, operations were financed primarily through sales of our preferred stock, yielding net proceeds of approximately $127.3 million, and equipment financing arrangements yielding approximately $7.5 million. In June and July 2000, we completed the initial public offering of 5,750,000 shares of our common stock and realized net proceeds of approximately $46.8 million.

As of December 31, 2001, we had cash, cash equivalents and short-term investments of $66.7 million, compared to $89.4 million at December 31, 2000 and $26.3 million at December 31, 1999. Working capital at December 31, 2001 was $67.9 million, compared to $83.8 million at December 31, 2000 and $22.0 million at December 31, 1999. The fiscal year 2001 decrease in cash and investments and working capital was primarily attributable to cash used to fund operating losses and to acquire fixed assets. The fiscal year 2000 increase in cash and investments and working capital was primarily due to proceeds from issuance of preferred stock of $34.8 million and initial public offering proceeds of $46.8 million, offset by cash used to fund operating losses.

Net cash used in operating activities was $18.6 million for the fiscal year ended December 31, 2001, compared to $12.8 million for the fiscal year ended December 31, 2000 and $15.9 for the fiscal year ended December 31, 1999. The increase in cash used in operations during 2001 compared to 2000 reflects higher working capital requirements in 2001, primarily caused by the growth in the Company's receivable balances. The accounts payable and other accrued liabilities remained relatively flat. The decrease in cash used in operations in 2000 compared to 1999 resulted primarily from a lower net loss for 2000 after adjusting for non-cash charges for depreciation and deferred compensation.

Net cash provided by investing activities was $11.2 million for the fiscal year ended December 31, 2001, compared to net cash used in investing activities of $50.8 million in 2000 and $10.3 million used in 1999. Fiscal year 2001 cash provided resulted from the net conversion of short-term investments into cash to support operations. The increase in cash used in investing activities between 2000 and 1999 is related to the purchase of short- term investments with the net proceeds from our initial public offering in June and July 2000 and from the exercise of warrants to purchase preferred stock in March 2000.

Net cash provided by financing activities was $771,000 for the fiscal year ended December 31, 2001, compared to $82.2 million for 2000 and $20.2 million for 1999. Fiscal year 2001 cash provided by financing resulted from proceeds from the issuance of common stock (resulting mainly from the employee stock purchase plan and the exercise of stock options) for $2.3 million, offset by the net repayment of long-term equipment financing debt of $1.5 million. Cash provided by investing activities in fiscal 2000 related primarily to our initial public offering in June and July 2000, yielding net proceeds of $46.8 million. Proceeds from the issuance of preferred stock were $34.8 million and $19.3 million in 2000 and 1999, respectively.

Our capital requirements depend on numerous factors, including market acceptance of our products, the resources we devote to developing and supporting our products and other factors. We expect to devote substantial capital resources to continue our research and development efforts, to expand our customer support and product development activities and for other general corporate activities. We believe that our current cash and short-term investment balances, together with revenue to be derived from the sale of our products, will be sufficient to meet our liquidity requirements at least through 2003. During or after this period, if cash generated by operations is insufficient to satisfy our liquidity requirements, we may need to sell additional equity or debt securities or obtain additional credit arrangements. Additional financing may not be available on terms acceptable to us or at all. The sale of additional equity or convertible debt securities may result in additional dilution to our stockholders.

Contractual Obligations and Commercial Commitments. The following table summarizes all significant contractual payment obligations by payment due date:

Payments by Period ($ Millions)

Contractual Obligation	Total	Under 1 Year	1-3 Years	Over 4Years
Long-term Debt	$2.4	$1.6	$0.8	-
Non-Routine Royalty	$1.0	$1.0	-	-
Building Lease	$12.4	$1.3	$7.3	$3.8
Total	$15.8	$3.9	$8.1	$3.8

CRITICAL ACCOUNTING POLICIES

The Company believes the following represent its critical accounting policies:

Revenue Recognition. In certain cases, revenue from direct system sales is generated from multiple element arrangements which require judgement in the areas of delivery, customer acceptance, installation and collectibility. Revenue is recognized as specific elements indicated in sales contracts are executed. If an element is essential to the functionality of the system, revenue is deferred until that essential element is delivered. The fair value of each undelivered element that is not essential to the functionality of the system is deferred until performance occurs. The fair value of an undelivered element is based upon an estimate made by management. Amounts billed in excess of revenue recognized is recorded as deferred revenue on the balance sheet.

Warranties. We provide for the estimated costs of product warranties at the time revenue is recognized. The Company's estimate of costs to service its warranty obligations is based upon historical experience and expectation of future conditions. Should warranty claim activity and the costs associated with servicing those claims differ from the Company's estimates, revisions to the estimated warranty liability may be required.

Allowance for Doubtful Accounts. The allowance for doubtful accounts is based upon management estimates. Factors underlying these estimates include analysis of days outstanding, customer payment history and management judgement. The allowance is adjusted regularly to reflect current data and activity.

Inventory Reserves. We write our inventory down for estimated obsolescence or unmarketable inventory equal to the difference between the cost of inventory and the estimated market value based upon assumptions about future demand and market conditions. If actual future demand or market conditions are less favorable than those projected by management, additional inventory write-downs may be required.

Intangible Assets. We have intangible assets on our balance sheet related to the acquisition of patents. The valuation and classification of these assets and the assignment of useful amortization lives involves judgments and the use of estimates. The testing of these intangibles for impairment under established accounting guidelines is required on an ongoing basis. Changes in business conditions could potentially require future adjustments to asset valuations.

Contingencies. We are subject to proceedings, lawsuits and other claims related to our products, patents and other matters. We are required to assess the likelihood of any adverse judgments or outcomes to these matters as well as potential ranges of probable losses. A determination of the amount of reserves required, if any, for these contingencies is made after careful analysis of each individual issue. The required reserves may change in the future due to new developments in each matter or changes in approach such as a change in settlement strategy in dealing with these matters.

A complete description of all significant accounting policies is included in Note 1 in the Notes to the consolidated financial statements, in Item 14 of this Annual Report on Form 10-K.

RECENT ACCOUNTING PRONOUNCEMENTS

In June 1998, the Financial Accounting Standards Board (FASB) issued Statement of Financial Accounting Standards (SFAS) No. 133, "Accounting for Derivative Instruments and Hedging Activities" ("SFAS 133"). We adopted SFAS 133 effective January 1, 2001. This statement establishes accounting and reporting standards requiring that every derivative instrument, including certain derivative instruments embedded in other contracts, be recorded in the balance sheet as either an asset or liability measured at its fair value. The statement also requires that changes in the derivative's fair value be recognized in earnings unless specific hedge accounting criteria are met. The adoption of SFAS 133, as amended, has not had a significant impact on our financial position or results of operations.

In July 2001, the FASB issued SFAS No. 141 "Business Combinations" and SFAS No. 142 "Goodwill and Other Intangible Assets," effective for fiscal years beginning after December 15, 2001. SFAS No. 141 requires that the purchase method of accounting be used for all business combinations initiated after June 30, 2001, and that the use of the pooling-of-interest method is no longer allowed. Under SFAS No. 142 goodwill and intangible assets deemed to have indefinite lives will no longer be amortized but will be subject to an annual impairment test in accordance with the new standards. Other intangible assets will continue to be amortized over their respective useful lives. The Company will adopt SFAS No. 141 and SFAS No. 142 as of January 1, 2002. The Company does not currently believe that the adoption of SFAS No. 141 and SFAS No. 142 will have a significant impact on its financial position or results of operations.

In August 2001, the FASB issued SFAS No. 144 "Accounting for the Impairment or Disposal of Long-Lived Assets", effective for fiscal years beginning after December 15, 2001. SFAS No. 144 addresses financial accounting and reporting for impairment or disposal of long-lived assets and supersedes SFAS 121. The Company will adopt SFAS No. 144 as of January 1, 2002. The Company does not currently believe that the adoption of SFAS No. 144 will have a significant impact on its financial position or results of operations.

FACTORS AFFECTING OPERATING RESULTS

OUR FUTURE OPERATING RESULTS MAY BE BELOW SECURITIES ANALYSTS' OR INVESTORS' EXPECTATIONS, WHICH COULD CAUSE OUR STOCK PRICE TO DECLINE.

Because of our limited operating history, we have limited insight into trends that may emerge in our market and affect our business. The revenue and income potential of our market are unproven, and we may be unable to generate significant commercial revenues. In addition, our costs may be higher than we, securities analysts or investors expect. If we fail to generate sufficient revenues or our costs are higher than we expect, our results of operations will suffer, which in turn could cause our stock price to decline. Further, future revenue from sales of our products, if any, will be difficult to forecast because the market for new surgical technologies is still evolving. Our results of operations will depend upon numerous factors, including:

• the progress and results of clinical trials;
• actions relating to regulatory matters;
• the extent to which our products gain market acceptance;
• our timing and ability to develop our manufacturing and sales and marketing capabilities;
• demand for our products;
• the progress of surgical training in the use of our products;
• our ability to develop, introduce and market new or enhanced versions of our products on a timely basis;
• product quality problems;
• our ability to protect our proprietary rights;
• our ability to license additional intellectual property rights; and
• third-party payor reimbursement policies.

Our operating results in any particular period will not be a reliable indication of our future performance. It is likely that in some future quarters, our operating results will be below the expectations of securities analysts or investors. If this occurs, the price of our common stock, and the value of your investment, will likely decline.

WE HAVE A LARGE ACCUMULATED DEFICIT, WE EXPECT FUTURE LOSSES, AND WE MAY NOT ACHIEVE OR MAINTAIN PROFITABILITY.

We have incurred substantial losses since inception and we expect to incur substantial additional operating losses for at least the next two years, primarily as a result of expected increases in expenses for our manufacturing and sales and marketing capabilities, research and development activities, clinical trials and regulatory approval applications. The extent of our future losses and the timing of profitability are highly uncertain, and we may never achieve profitable operations. If the time required to generate significant revenues and achieve profitability is longer than anticipated, we may not be able to continue our operations. Our net loss for the year ended December 31, 2001, 2000, and 1999 were $16.7 million, $18.5 million, and $18.4 million, respectively. As of December 31, 2001, we had an accumulated deficit of $110.4 million.

WE EXPERIENCE LONG AND VARIABLE SALES CYCLES, WHICH COULD HAVE A NEGATIVE IMPACT ON OUR RESULTS OF OPERATIONS FOR ANY GIVEN QUARTER.

Our da Vinci Surgical System has a lengthy sales and purchase order cycle because it is a major capital item and generally requires the approval of senior management at purchasing institutions. These factors may contribute to substantial fluctuations in our quarterly operating results, particularly during the periods in which our sales volume is low. Because of these fluctuations, it is likely that in some future quarters, our operating results could fall below the expectations of securities analysts or investors. If that happens, the market price of our stock would likely decrease. These fluctuations also mean that you will not be able to rely upon our operating results in any particular period as an indication of future performance.

BECAUSE A SMALL NUMBER OF CUSTOMERS HAVE AND ARE LIKELY TO CONTINUE TO ACCOUNT FOR A SUBSTANTIAL PORTION OF OUR REVENUES, OUR REVENUES COULD DECLINE DUE TO THE LOSS OR DELAY OF A SINGLE CUSTOMER ORDER.

A relatively small number of customers account for a significant portion of our total revenues. In 1999, 2000, and 2001, the majority of our revenues came from the sales of da Vinci Surgical Systems, which are high revenue dollar items. Due to the high dollar revenue per system sold, small variations in system unit sales may cause revenue to vary significantly from quarter to quarter. For the year ended December 31, 1999, two customers, AB Medica SRL, located in Italy, and Marubeni America Corporation, located in New York, each accounted for 16% of our total sales. AB Medica SRL and Marubeni America Corporation are our Italian and Japanese distributors, respectively. For the year ended December 31, 2000, none of our customers accounted for 10% or greater of total sales. For the year ended December 31, 2001 AB Medica SRL accounted for 15% of total sales.

We expect that revenues from a limited number of new customers will account for a large percentage of total revenues in future quarters. Our ability to attract new customers will depend on a variety of factors, including the capability, safety, efficacy, ease of use, price, quality and reliability of our products and effective sales, support, training and service. The loss or delay of individual orders could have a significant impact on revenues and operating results. Our failure to add new customers that make significant purchases of our products would reduce our future revenues.

IF OUR PRODUCTS DO NOT ACHIEVE MARKET ACCEPTANCE, WE WILL NOT BE ABLE TO GENERATE THE REVENUE NECESSARY TO SUPPORT OUR BUSINESS.

Our products represent a fundamentally new way of performing surgery. Achieving physician, patient and third-party payor acceptance of Intuitive surgery as a preferred method of performing surgery will be crucial to our success. If our products fail to achieve market acceptance, hospitals will not purchase our products and we will not be able to generate the revenue necessary to support our business. We believe that physicians' and third-party payors' acceptance of the benefits of procedures performed using our products will be essential for acceptance of our products by patients. Physicians will not recommend the use of our products unless we can demonstrate that they produce results comparable or superior to existing surgical techniques. Even if we can prove the effectiveness of our products through clinical trials, surgeons may elect not to use our products for any number of other reasons. For example, cardiologists may continue to recommend conventional open heart surgery simply because such surgery is already so widely accepted. In addition, surgeons may be slow to adopt our products because of the perceived liability risks arising from the use of new products and the uncertainty of reimbursement from third-party payors.

We expect that there will be a learning process involved for surgical teams to become proficient in the use of our products. Broad use of our products will require training of surgical teams. Market acceptance could be delayed by the time required to complete this training. We may not be able to rapidly train surgical teams in numbers sufficient to generate adequate demand for our products. Although we are in the process of developing training programs for surgical teams, we cannot be certain that our training programs will be cost effective or sufficient to meet our customers' needs.

WE ARE INVOLVED IN INTELLECTUAL PROPERTY LITIGATION WITH COMPUTER MOTION AND BROOKHILL-WILK 1, LLC THAT MAY HURT OUR COMPETITIVE POSITION, MAY BE COSTLY TO US AND MAY PREVENT US FROM SELLING OUR PRODUCTS.

On May 10, 2000, Computer Motion, Inc. filed a lawsuit in United States District Court for the Central District of California (Case No. CV00-4988 CBM) alleging that by making, using, selling or offering for sale our da Vinci Surgical System, we are infringing United States Patent Numbers 5,524,180, 5,762,458, 5,815,640, 5,855,583, 5,878,193, 5,907,664 and 6,001,108, in willful disregard of Computer Motion's patent rights. On June 1, 2000, Computer Motion amended its lawsuit to allege that we also infringe U.S. Patent Number 6,063,095. On October 30, 2000, Computer Motion filed a motion seeking to add U.S. Patent Number 6,102,850 to the litigation. These patents concern methods and devices for conducting various aspects of robotic surgery. On December 7 and 8, 2000, the U.S. Patent and Trademark Office ("PTO") declared three interferences between a single SRI patent application exclusively licensed to us and three of Computer Motion's patents, Numbers 5,855,583, 5,878,193, and 5,907,664. In light of those declarations of interference, the District Court in February 2001 stayed -- put on hold -- all proceedings in the litigation for one year while the PTO conducts the interference proceedings. In February 2002, the District Court extended the stay through a late March 2002 status conference, at which time the parties and the Court will discuss the propriety of further extending the stay in light of the ongoing interferences.

In connection with our joint litigation with IBM Corporation against Computer Motion in Delaware, Computer Motion has alleged infringement of its U.S. Patent No. 6,244,809. Although the Delaware Court refused to allow Computer Motion to sue us on this '809 patent in Delaware, Computer Motion may attempt to assert this patent against us in California if the California litigation continues.

If the California litigation proceeds notwithstanding the interferences, and if we ultimately lose Computer Motion's suit against us, it will hurt our competitive position, may be costly to us and may prevent us from selling our products. In addition, if we lose the patent suit, we will need to obtain from Computer Motion a license to this technology if we are to continue to market our products that have been found to infringe Computer Motion's patents. This license could be expensive, or could require us to license to Computer Motion some of our technology which would result in a partial loss of our competitive advantage in the marketplace, each of which could seriously harm our business. If Computer Motion is successful in its suit against us and is unwilling to grant us a license, we will be required to stop selling our products that are found to infringe Computer Motion's patents unless we can redesign them so they do not infringe Computer Motion's patents, which we may be unable to do. In addition, if we lose the patent suit, we could be required to pay Computer Motion damages, including treble damages, which could be substantial and harm our financial position.

On September 1, 2000, Brookhill-Wilk 1, LLC ("Wilk") filed a lawsuit in the United States District Court for the Southern District of New York (Case No. 00 Civ. 6599 (NRB)) alleging that by making, using, selling or offering for sale our da Vinci Surgical System, we are infringing U.S. Patent Nos. 5,217,003 and 5,368,015 in willful disregard of Wilk's patent rights. These patents concern methods and devices for "remote" surgery. In March 2001, Wilk withdrew its assertion of the '015 patent against Intuitive. On November 8, 2001, the District Court granted summary judgment of noninfringement of the '003 patent in our favor and dismissed Wilk's complaint in its entirety without prejudice. Wilk has since filed a notice with the U.S. Court of Appeals for the Federal Circuit to appeal the summary judgment ruling. Briefing on the appeal should conclude in mid-2002, with a hearing date possible towards the end of 2002 or in early 2003. If we lose on appeal and ultimately also lose Wilk's suit against us, it will hurt our competitive position, may be costly to us and may prevent us from selling our products. If we lose the patent suit, we may need to obtain from Wilk a license to this technology if we are to continue to market our products that have been found to infringe Wilk's patents. This license could be expensive, which could seriously harm our business. If Wilk is successful in its suit against us and is unwilling to grant us a license, we may be required to stop selling our products that are found to infringe Wilk's patents unless we can redesign them so they do not infringe Wilk's patents, which we may be unable to do. In addition, if we lose the patent suit, we could be required to pay Wilk damages, including treble damages, which could be substantial and harm our financial position.

The foregoing proceedings, will be expensive to litigate, may be protracted and our confidential information may be compromised. Whether or not we are successful in this lawsuit, these proceedings could consume substantial amounts of our financial and managerial resources. At any time Computer Motion or Wilk may file additional claims against Intuitive Surgical, or we may file claims against Computer Motion or Wilk, which could increase the risk, expense and duration of the litigations. Further, because of the substantial amount of discovery often involved in connection with this type of litigation, there is a risk that some of our confidential information could be compromised by disclosure. For more information on our litigation with Computer Motion, see "Item 1: Business -- Legal Proceedings."

IF WE ARE UNABLE TO PROTECT THE INTELLECTUAL PROPERTY CONTAINED IN OUR PRODUCTS FROM USE BY THIRD PARTIES, OUR ABILITY TO COMPETE IN THE MARKET WILL BE HARMED.

Our commercial success will depend in part on obtaining patent and other intellectual property protection for the technologies contained in our products, and on successfully defending our patents and other intellectual property against third party challenges.

We will incur substantial costs in obtaining patents and, if necessary, defending our proprietary rights. The patent positions of medical device companies, including ours, can be highly uncertain and involve complex and evolving legal and factual questions. We cannot assure you that we will obtain the patent protection we seek, or that the protection we do obtain will be found valid and enforceable if challenged. We also cannot assure you that we will be able to develop additional patentable proprietary technologies. If we fail to obtain adequate protection of our intellectual property, or if any protection we obtain is reduced or eliminated, others could use our intellectual property without compensating us, resulting in harm to our business. We may also determine that it is in our best interests to voluntarily challenge a third party's products or patents in litigation or administrative proceedings, including patent interferences or reexaminations. Given the early priority dates of some of our licensed patents, we believe one or more patent proceedings may be in our best interests. In addition, the laws of certain foreign countries do not protect intellectual property rights to the same extent as do the laws of the United States.

OTHERS MAY ASSERT THAT OUR PRODUCTS INFRINGE THEIR INTELLECTUAL PROPERTY RIGHTS, WHICH MAY CAUSE US TO ENGAGE IN COSTLY DISPUTES AND, IF WE ARE NOT SUCCESSFUL IN DEFENDING OURSELVES, COULD ALSO CAUSE US TO PAY SUBSTANTIAL DAMAGES AND PROHIBIT US FROM SELLING OUR PRODUCTS.

We are aware of both United States and foreign patents issued to third parties that relate to computer-assisted surgery and minimally invasive surgery. Some of these patents on their face appear broad enough to cover one or more aspects of our present technology, and may cover aspects of our future technology. We do not know whether any of these patents, if challenged, would be held valid, enforceable and infringed. From time to time, we receive, and likely will continue to receive, letters from third parties inviting us to license their patents. We may be sued by, or become involved in an administrative proceeding because of one or more of these third parties, regardless of the merits or likely outcome of such suit or proceeding. We cannot assure you that a court or administrative body would agree with any arguments or defenses we have concerning invalidity, unenforceability or noninfringement of any third-party patent. In addition to the issued patents of which we are aware, other parties may have filed, and in the future are likely to file, patent applications covering surgical products that are similar or identical to ours. We cannot assure you that any patents issuing from applications filed by a third party will not cover our products or will not have priority over our patent applications.

The medical device industry has been characterized by extensive litigation and administrative proceedings regarding patents and other intellectual property rights, and companies have employed such actions to gain a competitive advantage. If third parties assert infringement or other intellectual property claims against us as Computer Motion and Brookhill-Wilk 1, LLC have done, our technical and management personnel will experience a significant diversion of time and effort and we will incur large expenses defending ourselves. If third parties in any patent action are successful, our patent portfolio may be damaged, we may have to pay substantial damages, including treble damages, and we may be required to stop selling our products or obtain a license which, if available at all, may require us to pay substantial royalties. We cannot be certain that we will have the financial resources or the substantive arguments to defend our patents from infringement or claims of invalidity or unenforceability, or to defend against allegations of infringement of third-party patents. In addition, any public announcements related to litigation or administrative proceedings initiated by us, or initiated or threatened against us, could cause our stock price to decline.

THE RIGHTS AND MEASURES WE RELY ON TO PROTECT THE INTELLECTUAL PROPERTY UNDERLYING OUR PRODUCTS MAY NOT BE ADEQUATE TO PREVENT THIRD PARTIES FROM USING OUR TECHNOLOGY WHICH COULD HARM OUR ABILITY TO COMPETE IN THE MARKET.

In addition to patents, we typically rely on a combination of trade secret, copyright and trademark laws, nondisclosure agreements and other contractual provisions and technical security measures to protect our intellectual property rights. Nevertheless, these measures may not be adequate to safeguard the technology underlying our products. If they do not protect our rights adequately, third parties could use our technology, and our ability to compete in the market would be reduced. In addition, employees, consultants and others who participate in developing our products may breach their agreements with us regarding our intellectual property, and we may not have adequate remedies for the breach. We also may not be able to effectively protect our intellectual property rights in some foreign countries. For a variety of reasons, we may decide not to file for patent, copyright or trademark protection outside the United States. We also realize that our trade secrets may become known through other means not currently foreseen by us. Notwithstanding our efforts to protect our intellectual property, our competitors may independently develop similar or alternative technologies or products that are equal or superior to our technology and products without infringing any of our intellectual property rights, or may design around our proprietary technologies. For further information on our intellectual property and the difficulties in protecting it, see "Item 1: Business -- Intellectual Property."

OUR PRODUCTS RELY ON LICENSES FROM THIRD PARTIES, AND IF WE LOSE ACCESS TO THESE TECHNOLOGIES, OUR REVENUES COULD DECLINE.

We rely on technology that we license from others, including technology that is integral to our products. We have entered into license agreements with SRI International, IBM Corporation, MIT, Olympus Optical Co., Ltd., and Heartport, Inc., now part of Johnson & Johnson. Any of these agreements may be terminated for breach. If any of these agreements is terminated, we may be unable to reacquire the necessary license on satisfactory terms, or at all. The loss or failure to maintain these licenses could prevent or delay further development or commercialization of our products. See "Item 1: Business -- Intellectual Property."

PUBLIC ANNOUNCEMENTS OF LITIGATION EVENTS MAY CAUSE OUR STOCK PRICE TO DECLINE.

During the course of our administrative proceedings and/or lawsuits with Computer Motion and Brookhill-Wilk 1, LLC, there may be public announcements of the results of hearings, motions, and other interim proceedings or developments in the litigation. If securities analysts or investors perceive these results to be negative, it could have a substantial negative effect on the trading price of our stock.

OUR PRODUCTS ARE SUBJECT TO A LENGTHY AND UNCERTAIN DOMESTIC REGULATORY PROCESS. IF WE DO NOT OBTAIN AND MAINTAIN THE NECESSARY DOMESTIC REGULATORY APPROVALS, WE WILL NOT BE ABLE TO MARKET AND SELL OUR PRODUCTS IN THE UNITED STATES.

Our products and operations are subject to extensive regulation in the United States by the U.S. Food and Drug Administration, or FDA. The FDA regulates the research, testing, manufacturing, safety, labeling, storage, recordkeeping, promotion, distribution, and production of medical devices in the United States to ensure that medical products distributed domestically are safe and effective for their intended uses. In order for us to market certain products for use in the United States, we generally must first obtain clearance from the FDA, pursuant to Section 510(k) of the Federal Food, Drug, and Cosmetic Act ("FFDCA"). Clearance under Section 510(k) requires demonstration that a new device is substantially equivalent to another legally marketed device. If we modify our products after they receive FDA clearance, the FDA may require us to submit a separate 510(k) or PMA for the modified product before we are permitted to market the products in the U.S. In addition, if we develop products in the future that are not considered to be substantially equivalent to a legally marketed device, we will be required to obtain FDA approval by submitting a premarket approval application ("PMA").

The FDA may not act favorably or quickly in its review of our 510(k) or PMA submissions, or we may encounter significant difficulties and costs in our efforts to obtain FDA clearance or approval, all of which could delay or preclude sale of new products in the United States. Furthermore, the FDA may request additional data, require us to conduct further testing, or compile more data, including clinical data, in support of a 510(k) submission. The FDA may also, instead of accepting a 510(k) submission, require us to submit a PMA, which is typically a much more complex application than a 510(k). To support a PMA, the FDA would likely require that we conduct one or more clinical studies to demonstrate that the device is safe and effective, rather than substantially equivalent to another legally marketed device. We may not be able to meet the requirements to obtain 510(k) clearance or PMA approval, or the FDA may not grant any necessary clearances or approvals. In addition, the FDA may place significant limitations upon the intended use of our products as a condition to a 510(k) clearance or PMA approval. Product applications can also be denied or withdrawn due to failure to comply with regulatory requirements or the occurrence of unforeseen problems following approval. Any delays or failure to obtain FDA clearance or approvals of new products we develop, any limitations imposed by the FDA on new product use or the costs of obtaining FDA clearance or approvals could have a material adverse effect on our business, financial condition and results of operations.

In order to conduct a clinical investigation involving human subjects for the purpose of demonstrating the safety and effectiveness of a device, a company must, among other things, apply for and obtain Institutional Review Board ("IRB") approval of the proposed investigation. In addition, if the clinical study involves a "significant risk" (as defined by the FDA) to human health, the sponsor of the investigation must also submit and obtain FDA approval of an investigational device exemption ("IDE") application. We may not be able to obtain FDA and/or IRB approval to undertake clinical trials in the U.S. for any new devices we intend to market in the United States in the future. If we obtain such approvals, we may not be able to comply with the IDE and other regulations governing clinical investigations or the data from any such trials may not support clearance or approval of the investigational device. Failure to obtain such approvals or to comply with such regulations could have a material adverse effect on our business, financial condition and results of operations. For additional information concerning regulatory approvals of our products, see "Item 1: Business -- Government Regulation."

OUR PRODUCTS ARE SUBJECT TO VARIOUS INTERNATIONAL REGULATORY PROCESSES AND APPROVAL REQUIREMENTS. IF WE DO NOT OBTAIN AND MAINTAIN THE NECESSARY INTERNATIONAL REGULATORY APPROVALS, WE WILL NOT BE ABLE TO MARKET AND SELL OUR PRODUCTS IN FOREIGN COUNTRIES.

To be able to market and sell our products in other countries, we must obtain regulatory approvals and comply with the regulations of those countries. These regulations, including the requirements for approvals, and the time required for regulatory review vary from country to country. Obtaining and maintaining foreign regulatory approvals are expensive, and we cannot be certain that we will receive regulatory approvals in any foreign country in which we plan to market our products. If we fail to obtain regulatory approval in any foreign country in which we plan to market our products, our ability to generate revenue will be harmed.

The European Union requires that manufacturers of medical products obtain the right to affix the CE mark to their products before selling them in member countries of the European Union. The CE mark is an international symbol of adherence to quality assurance standards and compliance with applicable European medical device directives. In order to obtain the right to affix the CE mark to products, a manufacturer must obtain certification that its processes meet certain European quality standards. In January 1999, we received permission to affix the CE mark to our da Vinci Surgical System and EndoWrist instruments for general surgical use. We received additional CE approvals for use of our da Vinci Surgical System and EndoWrist instruments in cardiac surgery in September 1999 and February 2000.

If we modify existing products or develop new products in the future, including new instruments, we will need to apply for permission to affix the CE mark to such products. In addition, we will be subject to annual regulatory audits in order to maintain the CE mark permissions we have already obtained. We cannot be certain that we will be able to obtain permission to affix the CE mark for new or modified products or that we will continue to meet the quality and safety standards required to maintain the permissions we have already received. If we are unable to maintain permission to affix the CE mark to our products, we will no longer be able to sell our products in member countries of the European Union.

IF INSTITUTIONS OR SURGEONS ARE UNABLE TO OBTAIN REIMBURSEMENT FROM THIRD-PARTY PAYORS FOR PROCEDURES USING OUR PRODUCTS, OR IF REIMBURSEMENT IS INSUFFICIENT TO COVER THE COSTS OF PURCHASING OUR PRODUCTS, WE MAY BE UNABLE TO GENERATE SUFFICIENT SALES TO SUPPORT OUR BUSINESS.

Domestic institutions will typically bill the services performed with our products to various third-party payors, such as Medicare, Medicaid and other government programs and private insurance plans. If hospitals do not obtain sufficient reimbursement from third-party payors for procedures performed with our products, or if government and private payors' policies do not permit reimbursement for surgical procedures performed using our products, we may not be able to generate the revenues necessary to support our business. In such circumstances, we may have to apply to the American Medical Association for a unique Current Procedural Terminology code covering computer-enhanced surgery. If an application for a unique code is required, reimbursement for any use of our products may be unavailable until an appropriate code is granted. The application process, from filing until adoption of a new code, can take two or more years.

Our success in international markets also depends upon the eligibility of our products for reimbursement through government-sponsored health care payment systems and third-party payors. Reimbursement practices vary significantly by country. Many international markets have government-managed healthcare systems that control reimbursement for new products and procedures. Other foreign markets have both private insurance systems and government-managed systems that control reimbursement for new products and procedures. Market acceptance of our products may depend on the availability and level of reimbursement in any country within a particular time. In addition, health care cost containment efforts similar to those we face in the United States are prevalent in many of the other countries in which we intend to sell our products and these efforts are expected to continue. For further information on third-party reimbursement policies, see "Item 1: Business -- Third-Party Reimbursement."

BECAUSE OUR MARKETS ARE HIGHLY COMPETITIVE, CUSTOMERS MAY CHOOSE TO PURCHASE OUR COMPETITORS' PRODUCTS OR MAY NOT ACCEPT INTUITIVE SURGERY, WHICH WOULD RESULT IN REDUCED REVENUE AND LOSS OF MARKET SHARE.

Intuitive surgery is a new technology that must compete with established minimally invasive surgery and open surgery. These procedures are widely accepted in the medical community and in many cases have a long history of use. We also face competition from several companies that are developing new approaches and products for the minimally invasive surgery market. In addition, we presently face increasing competition from companies who are developing robotic and computer-assisted surgical systems. Our revenues may be reduced or eliminated if our competitors develop and market products that are more effective or less expensive than our products. If we are unable to compete successfully, our revenues will suffer. We may not be able to maintain or improve our competitive position against current or potential competitors, especially those with greater resources.

In many cases, the medical conditions that can be treated using our products can also be treated by pharmaceuticals or other medical devices and procedures. Many of these alternative treatments are also widely accepted in the medical community and have a long history of use. In addition, technological advances could make such treatments more effective or less expensive than using our products, which could render our products obsolete or unmarketable. We cannot be certain that physicians will use our products to replace or supplement established treatments or that our products will be competitive with current or future technologies.

IF SOFTWARE DEFECTS ARE DISCOVERED IN OUR PRODUCTS, WE MAY INCUR ADDITIONAL UNFORESEEN COSTS, HOSPITALS MAY NOT PURCHASE OUR PRODUCTS AND OUR REPUTATION MAY SUFFER.

Our products do incorporate computer software. Software can contains errors or failures, especially when first introduced. In addition, new products or enhancements may contain undetected errors or performance problems that, despite testing, are discovered only after commercial shipment. Because our products are designed to be used to perform complex surgical procedures, we expect that our customers will have an increased sensitivity to software defects. We cannot assure you that our software will not experience errors or performance problems in the future. If we experience software errors or performance problems, any of the following could occur:

• delays in product shipments;
• loss of revenue;
• delay in market acceptance;
• diversion of our resources;
• damage to our reputation;
• increased service or warranty costs; or
• product liability claims.

WE HAVE LIMITED EXPERIENCE IN MANUFACTURING OUR PRODUCTS AND MAY ENCOUNTER MANUFACTURING PROBLEMS OR DELAYS THAT COULD RESULT IN LOST REVENUE.

We have manufactured a limited number of our products for sales to customers. We may be unable to establish or maintain reliable, high-volume manufacturing capacity. Even if this capacity can be established and maintained, the cost of doing so may increase the cost of our products and reduce our ability to compete. We may encounter difficulties in scaling up production of our products, including:

• problems involving production yields;
• quality control and assurance;
• component supply shortages;
• shortages of qualified personnel; and
• compliance with state, federal and foreign regulations.

Manufacturing our products is a complex process. If demand for our products exceeds our manufacturing capacity, we could develop a substantial backlog of customer orders. If we are unable to establish and maintain larger-scale manufacturing capabilities, our ability to generate revenues will be limited and our reputation in the marketplace would be damaged.

IF OUR MANUFACTURING FACILITIES DO NOT CONTINUE TO MEET FEDERAL, STATE OR EUROPEAN MANUFACTURING STANDARDS, WE MAY BE REQUIRED TO TEMPORARILY CEASE ALL OR PART OF OUR MANUFACTURING OPERATIONS, WHICH WOULD RESULT IN PRODUCT DELIVERY DELAYS AND LOST REVENUE.

Our manufacturing facilities are subject to periodic inspection by regulatory authorities and our operations will continue to be regulated by the FDA for compliance with Good Manufacturing Practice requirements contained in the FDA's Quality System Regulations (QSR). We are also required to comply with the ISO 9000 series standards in order to produce products for sale in Europe. If we fail to continue to comply with Good Manufacturing Practice requirements or ISO 9000 series standards, we may be required to cease all or part of our operations until we comply with these regulations. We are currently in compliance with ISO 9000 series standards. In March 2000, the FDA inspected our Mountain View facility and the Good Manufacturing Practice issues raised during the inspection have been satisfactorily resolved with the FDA. Maintaining such compliance is difficult and costly. We cannot be certain that our facilities will be found to comply with Good Manufacturing Practice requirements or the ISO 9000 series standards in future audits by regulatory authorities.

The state of California also requires that we maintain a license to manufacture medical devices. Our facilities and manufacturing processes were inspected in February 1998. In March 1998, we passed the inspection and received a device manufacturing license from the California Department of Health Services. In March 2002, our facilities and manufacturing processes in our Sunnyvale facility were re-inspected by the FDB. We passed this audit and are awaiting issuance of our device manufacturing license renewal. We will be subject to periodic inspections by the California Department of Health Services and if we are unable to maintain this license following any future inspections, we will be unable to manufacture or ship any products.

OUR RELIANCE ON SOLE AND SINGLE SOURCE SUPPLIERS COULD HARM OUR ABILITY TO MEET DEMAND FOR OUR PRODUCTS IN A TIMELY MANNER OR WITHIN BUDGET.

Some of the components necessary for the assembly of our products are currently provided to us by sole source suppliers or single source suppliers. We purchase components through purchase orders rather than long-term supply agreements and generally do not maintain large volumes of inventory. The disruption or termination of the supply of components could cause a significant increase in the costs of these components, which could affect our profitability. A disruption or termination in the supply of components could also result in our inability to meet demand for our products, which could harm our ability to generate revenues, lead to customer dissatisfaction and damage our reputation. Furthermore, if we are required to change the manufacturer of a key component of our products, we may be required to verify that the new manufacturer maintains facilities and procedures that comply with quality standards and with all applicable regulations and guidelines. The delays associated with the verification of a new manufacturer could delay our ability to manufacture our products in a timely manner or within budget.

THE USE OF OUR PRODUCTS COULD RESULT IN PRODUCT LIABILITY CLAIMS THAT COULD BE EXPENSIVE, DIVERT MANAGEMENT'S ATTENTION AND HARM OUR BUSINESS.

Our business exposes us to significant risks of product liability claims. The medical device industry has historically been litigious, and we face financial exposure to product liability claims if the use of our products were to cause injury or death. There is also the possibility that defects in the design or manufacture of our products might necessitate a product recall. Although we maintain product liability insurance, the coverage limits of these policies may not be adequate to cover future claims. Particularly as sales of our products increase, we may be unable to maintain product liability insurance in the future at satisfactory rates or adequate amounts. A product liability claim, regardless of its merit or eventual outcome, could result in significant legal defense costs. A product liability claim or any product recalls could also harm our reputation or result in a decline in revenues.

OUR GROWTH WILL PLACE A SIGNIFICANT STRAIN ON OUR MANAGEMENT SYSTEMS AND RESOURCES AND, IF WE FAIL TO MANAGE OUR GROWTH, OUR ABILITY TO MARKET, SELL AND DEVELOP OUR PRODUCTS MAY BE HARMED.

In order to complete clinical trials, scale-up manufacturing, expand marketing and distribution capabilities and develop future products, we must expand our operations. We expect that future expansion will occur particularly in the areas of sales and marketing, manufacturing and research and development. This expansion will likely result in new and increased responsibilities for management personnel and place significant strain upon our management, operating and financial systems and resources. We plan to sell our products primarily through direct sales, and we currently have a small sales organization. Our products require a complex marketing and sales effort targeted at several levels within a prospective customer's organization. We will continue to expand our sales team over the next 12 months to achieve our sales growth goals. We will face significant challenges and risks in building and managing our sales team, including managing geographically dispersed sales efforts and adequately training our sales people in the use and benefits of our products. To accommodate our growth and compete effectively, we will be required to improve our information systems, create additional procedures and controls and expand, train, motivate and manage our work force. Our future success will depend in part on the ability of current and future management personnel to operate effectively, both independently and as a group. We cannot be certain that our personnel, systems, procedures and controls will be adequate to support our future operations.

IF WE LOSE OUR KEY PERSONNEL OR ARE UNABLE TO ATTRACT AND RETAIN ADDITIONAL PERSONNEL, OUR ABILITY TO COMPETE WILL BE HARMED.

We are highly dependent on the principal members of our management and scientific staff. In order to pursue our product development, marketing and commercialization plans, we will need to hire additional qualified personnel with expertise in research and development, clinical testing, government regulation, manufacturing, sales and marketing, and finance. Our product development plans depend in part on our ability to attract and retain engineers with experience in mechanics, software and optics. Attracting and retaining qualified personnel will be critical to our success, and competition for qualified personnel is intense, particularly in Silicon Valley. We may not be able to attract and retain personnel on acceptable terms given the competition for such personnel among technology and healthcare companies, and universities. The loss of any of these persons or our inability to attract and retain qualified personnel could harm our business and our ability to compete.

INTERNATIONAL SALES OF OUR PRODUCTS ACCOUNT FOR A SIGNIFICANT PORTION OF OUR REVENUES, WHICH EXPOSES US TO RISKS INHERENT IN INTERNATIONAL OPERATIONS. OUR GROWTH MAY BE LIMITED IF WE ARE UNABLE TO SUCCESSFULLY MANAGE OUR INTERNATIONAL ACTIVITIES.

Our business currently depends in large part on our activities in Europe, and a component of our growth strategy is to expand our presence into additional foreign markets. Sales to markets outside of the United States accounted for approximately 34%, 36% and 91% of our sales for the year ended December 31, 2001, 2000, and 1999, respectively. We will be subject to a number of challenges that specifically relate to our international business activities. These challenges include:

• failure of local laws to provide the same degree of protection against infringement of our intellectual property;
• protectionist laws and business practices that favor local competitors, which could slow our growth in international markets;
• the risks associated with foreign currency exchange rate fluctuation;
• the expense of establishing facilities and operations in new foreign markets; and
• building an organization capable of supporting geographically dispersed operations.

Currently, a majority of our international sales are denominated in U.S. dollars. As a result, an increase in the value of the U.S. dollar relative to foreign currencies could make our products less competitive in international markets. If we are unable to meet and overcome these challenges, our international operations may not be successful, which would limit the growth of our business.

FAILURE TO RAISE ADDITIONAL CAPITAL OR GENERATE THE SIGNIFICANT CAPITAL NECESSARY TO EXPAND OUR OPERATIONS AND INVEST IN NEW PRODUCTS COULD REDUCE OUR ABILITY TO COMPETE, RESULT IN LOWER REVENUES AND MAY PREVENT US FROM TAKING ADVANTAGE OF MARKET OPPORTUNITIES.

We expect that our existing capital resources and the revenue to be derived from the sale of our products will be sufficient to meet our working capital and capital expenditure needs at least through 2003. After that, we may need to raise additional funds and we cannot be certain that we will be able to obtain additional financing on favorable terms, or at all. If we need additional capital and cannot raise it on acceptable terms, we may not be able to, among other things:

• develop or enhance our products and services;
• acquire technologies, products or businesses;
• expand operations in the United States or internationally;
• hire, train and retain employees; or
• respond to competitive pressures or unanticipated capital requirements.

Our failure to do any of these things could result in lower revenues and could harm our business.

SALES BY CURRENT STOCKHOLDERS COULD CAUSE OUR COMMON STOCK PRICE TO DECLINE.

The market price of our common stock could decline as a result of sales of a large number of shares in the market. These sales may also make it more difficult for us to sell equity securities in the future at a time and at a price that we deem appropriate to raise funds through future offerings of common stock. As of December 31, 2001, several entities beneficially owned more than 5% of the outstanding shares of our common stock, including Allan G. Lozier, Investor Guernsey Ltd. and PaTMarK Company, Inc.

On May 8, 2001, June 21, 2001, and October 29, 2001, Mayfield Fund distributed 1,734,176, 891,801, and 875,237 shares of Intuitive common stock to its Partners, respectively.

On December 14, 2001, Morgan Stanley Venture Investors III, LP distributed 37,231 shares of Intuitive common stock to its Partners and Morgan Stanley Venture Partners III, LP distributed 387,769 shares of Intuitive common stock to its Partners.

ITEM 7A: QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

We are not subject to any meaningful market risks related to currency, commodity prices or similar matters. We are sensitive to short-term interest rate fluctuations to the extent that such fluctuations impact the interest income we receive on the investment of the remaining proceeds from our June 2000 initial public offering.

The primary objective of our investment activities is to preserve principal while at the same time maximizing the income we receive from our investments without significantly increasing risk. Some of the securities that we invest in may have market risk. This means that a change in prevailing interest rates may cause the principal amount of the investment to fluctuate. For example, if we hold a security that was issued with a fixed interest rate at the then-prevailing rate and the prevailing interest rate later rises, the principal amount of our investment will probably decline. To minimize this risk in the future, we intend to maintain our portfolio of cash equivalents and short-term investments in a variety of securities. We classify our cash equivalents and marketable securities as "fixed-rate" if the rate of return on such instruments remains fixed over their term. These "fixed-rate" investments include commercial paper and government and non-government debt securities. We classify our cash equivalents and marketable securities as "variable-rate" if the rate of return on such investments varies based on the change in a predetermined index or set of indices during their term. These "variable-rate" investments primarily included money market accounts. The average duration of all of our investments as of December 2001 was approximately 1.5 years. At December 31, 2001, approximately 54% of our investment portfolio was composed of investments with original maturities of one year of less. The following table presents the amounts of our cash, cash equivalents and short-term investments that may be subject to interest rate risk and the weighted average interest rates by year of maturity ($ in thousands):

                                              2001
                                ----------------------------
                                Weighted average     Fair
                                 Interest Rate       Value
                                ---------------    ---------
Cash Equivalents
   Variable rate...............           2.22 %  $   1,147
Marketable securities
   Fixed rate (mature in 2002).           5.13 %  $  32,400
   Fixed rate (mature in 2004).           4.63 %  $   8,828
   Fixed rate (mature in 2005).           6.58 %  $  10,300
   Fixed rate (mature in 2006).           6.12 %  $   4,646

ITEM 8: FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

Annual Financial Statements: See Part Four, Item 14(a)(1) of this Form 10-K.

ITEM 9: CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURES

None.

PART III

ITEM 10: DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

The information regarding directors is incorporated herein by reference from the section entitled "Election of Directors" of the Company's definitive Proxy Statement (the "Proxy Statement") to be filed pursuant to Regulation 14A of the Securities Exchange Act of 1934, as amended, for registrants' annual meeting of Stockholders to be held on May 23, 2002. The Proxy Statement is anticipated to be filed within 120 days after the registrant's fiscal year end of December 31, 2001.

ITEM 11: EXECUTIVE COMPENSATION

Information regarding executive compensation is incorporated herein by reference from the section titled "Executive Compensation" of the Proxy Statement.

ITEM 12: SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

Information regarding security ownership of certain beneficial owners and management is incorporated herein by reference from the section titled "Security Ownership Of Certain Beneficial Owners and Management" of the Proxy Statement.

ITEM 13: CERTAIN RELATIONSHIPS AND RELATED PARTY TRANSACTIONS

Information regarding certain relationships and related party transactions is incorporated herein by reference from the section titled "Certain Transactions" of the Proxy Statement.

PART IV

ITEM 14: EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K

(a) The following documents are filed as part of this Annual Report on Form 10-K

(1) Financial Statements -- See Index to Consolidated Financial Statements on page F-1 of this Report on Form 10-K.

(2) The following financial statement schedule of Intuitive Surgical, Inc. is filed as part of this Report and should be read in conjunction with the financial statements of Intuitive Surgical:

- Schedule II: Valuation and Qualifying Accounts.

All other schedules have been omitted because they are not applicable, not required under the instructions, or the information requested is set forth in the consolidated financial statements or related notes thereto.

(3) Exhibits

The exhibits filed as part of this report are listed under "Exhibits" at subsection (C) of this Item 14.

(b) Reports on Form 8-K

There were no reports on Form 8-K filed for the quarter ended December 31, 2001.

(c) Exhibits

EXHIBIT INDEX

Exhibit Number	Description
3.2(1)	Amended and Restated Certificate of Incorporation of Registrant.(1)
3.3(1)	Bylaws of Registrant.
4.2(1)	Specimen Stock Certificate.
4.3(1)	Warrant to Purchase Shares of Common Stock, dated April 26, 2000.
10.1(1)	Form of Indemnity Agreement.
10.2(1)	2000 Equity Incentive Plan.
10.3(1)	2000 Non-Employee Directors' Stock Option Plan.
10.4(1)	2000 Employee Stock Purchase Plan.
10.5(1)	Amended and Restated Investor Rights Agreement dated March 31, 1999.
10.6(1)	Equipment Financing Agreement (No. 10809), dated April 2, 1997, between the Registrant and Lease Management Services, Inc., and related addendums.
10.7(1)	Security Agreement, dated May 20, 1999, between the Registrant and Heller Financial Leasing, Inc., and related amendments.
10.8(1)	License Agreement, dated December 20, 1995, between the Registrant and SRI International.
10.9(1)	License Agreement, dated December 29, 1997, between the Registrant and International Business Machines Corporation.
10.10(1)	License Agreement, dated April 1, 1999, between the Registrant and Massachusetts Institute of Technology.
10.11(1)	Lease, dated September 9, 1996, between the Registrant and Zappettini Investment Co.
10.12(1)	Lease, dated February 5, 1997, between the Registrant and Zappettini Investment Co.
10.13(1)	Employment Agreement, dated February 28, 1997, between the Registrant and Lonnie M. Smith.
10.14(2)	Lease, dated July 16, 2001, between the Registrant and RNM Technology Drive, L.P.
23.1(2)	Consent of Ernst & Young LLP, Independent Auditors.
24.1(2)	Power of Attorney (set forth on signature page).

_____________

(1) Incorporated by reference to exhibits filed with the Registrant's Registration Statement on Form S-1 (333-33016)

(2) Filed herewith

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

INTUITIVE SURGICAL, INC. (Registrant)
By:	/s/ LONNIE M. SMITH
Lonnie M. Smith
President and Chief Executive Officer

March 29, 2002

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

Signature	Title	Date
/s/ LONNIE M. SMITH Lonnie M. Smith	President, Chief Executive Officer and Director (Principal Executive Officer)	March 29, 2002
/s/ SUSAN K. BARNES Susan K. Barnes	Senior Vice President, Chief Financial Officer and Assistant Secretary (Principal Financial and Accounting Officer)	March 29, 2002
/s/ SCOTT S. HALSTED Scott S. Halsted	Director	March 29, 2002
/s/ RUSSELL C. HIRSCH, M.D., PH.D. Russell C. Hirsch, M.D., Ph.D.	Director	March 29, 2002
/s/ RICHARD J. KRAMER Richard J. Kramer	Director	March 29, 2002
/s/ JAMES A. LAWRENCE James A. Lawrence	Director	March 29, 2002
/s/ ALAN J. LEVY, PH.D. Alan J. Levy, Ph.D.	Director	March 29, 2002
/s/ FREDERIC H. MOLL, M.D. Frederic H. Moll, M.D.	Vice President, Medical Director and Director	March 29, 2002

INTUITIVE SURGICAL, INC.
INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

	Page
Report of Ernst & Young LLP, Independent Auditors	F-2
Consolidated Balance Sheets at December 31, 2001 and 2000	F-3
Consolidated Statements of Operations for the years ended December 31, 2001, 2000 and 1999	F-4
Consolidated Statement of Stockholders' Equity for the years ended December 31, 2001, 2000 and 1999	F-5
Consolidated Statements of Cash Flows for the years ended December 31, 2001, 2000 and 1999	F-6
Notes to Consolidated Financial Statements	F-7
Schedule II -- Valuation and Qualifying Accounts	S-1

REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

Board of Directors and Stockholders
Intuitive Surgical, Inc.

We have audited the accompanying consolidated balance sheets of Intuitive Surgical, Inc. as of December 31, 2001 and 2000, and the related consolidated statements of operations, stockholders' equity and cash flows for each of the three years in the period ended December 31, 2001. Our audits also included the financial statement schedule listed in the index at Item 14(a). These financial statements and schedule are the responsibility of the Company's management. Our responsibility is to express an opinion on these financial statements and schedule based on our audits.

We conducted our audits in accordance with auditing standards generally accepted in the United States. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial position of Intuitive Surgical, Inc. at December 31, 2001 and 2000, and the consolidated results of its operations and its cash flows for each of the three years in the period ended December 31, 2001, in conformity with accounting principles generally accepted in the United States. Also, in our opinion, the related financial statement schedule, when considered in relation to the basic financial statements taken as a whole, presents fairly in all material respects, the information set forth therein.

/s/ ERNST & YOUNG LLP           

Palo Alto, California
February 1, 2002

INTUITIVE SURGICAL, INC.
CONSOLIDATED BALANCE SHEETS
(IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)

                                                             December 31,
                                                          --------------------
                                                            2001       2000
                                                          ---------  ---------
                         ASSETS
Current assets:
  Cash and cash equivalents............................. $  10,487  $  22,657
  Short-term investments................................    56,174     66,784
  Accounts receivable, net of allowance for doubtful
     accounts of $446 and $192 at December 31, 2001
     and 2000, respectively.............................    13,248      6,444
  Inventory, net........................................     6,182      6,076
  Prepaid and other assets..............................     3,128      1,705
                                                          ---------  ---------
          Total current assets..........................    89,219    103,666
Property and equipment, net.............................     7,834      4,669
Intangible and other assets.............................     3,308      4,086
                                                          ---------  ---------
          Total assets.................................. $ 100,361  $ 112,421
                                                          =========  =========
          LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable...................................... $   8,300  $   7,128
  Accrued compensation and employee benefits............     2,537      2,609
  Warranty accrual......................................     1,831      1,494
  Accrued royalty expense...............................     1,000      1,000
  Other accrued liabilities.............................     2,128      2,028
  Deferred revenue......................................     3,870      3,552
  Current portion of notes payable......................     1,631      2,019
                                                          ---------  ---------
          Total current liabilities.....................    21,297     19,830
Long-term notes payable.................................       771      1,861
Stockholders' equity:
  Preferred stock, 5,000,000 shares authorized, $0.001
     par value, issuable in series; no shares
     issued and outstanding as of December 31, 2001
     and 2000, respectively.............................        --         --
  Common stock, 200,000,000 shares authorized, $0.001
     par value, 36,223,640 and 35,675,822 shares
     issued and outstanding as of December 31, 2001
     and December 31, 2000, respectively................        36         36
  Additional paid-in capital............................   188,962    186,713
  Deferred compensation.................................      (886)    (2,483)
  Accumulated deficit...................................  (110,370)   (93,670)
  Accumulated other comprehensive income ...............       551        134
                                                          ---------  ---------
          Total stockholders' equity....................    78,293     90,730
                                                          ---------  ---------
          Total liabilities and stockholders' equity.... $ 100,361  $ 112,421
                                                          =========  =========

See accompanying notes.

INTUITIVE SURGICAL, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS
(IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

                                                    Year Ended December 31,
                                              ----------------------------------
                                                 2001        2000        1999
                                              ----------  ----------  ----------
Sales....................................... $   51,673  $   26,624  $   10,192
Cost of sales...............................     28,218      18,031       9,273
                                              ----------  ----------  ----------
     Gross profit...........................     23,455       8,593         919

Operating costs and expenses:
  Research and development..................     13,851      11,734      11,130
  Selling, general and administrative.......     29,987      19,136       9,338
                                              ----------  ----------  ----------
     Total operating costs and expenses.....     43,838      30,870      20,468
                                              ----------  ----------  ----------
Loss from operations........................    (20,383)    (22,277)    (19,549)
Interest income.............................      3,909       4,266       1,531
Interest expense............................       (268)       (404)       (406)
Other income/(expense)......................         42        (108)          9
                                              ----------  ----------  ----------
Net loss.................................... $  (16,700) $  (18,523) $  (18,415)
                                              ==========  ==========  ==========

Basic and diluted net loss per common share. $    (0.47) $    (0.78) $    (3.81)
                                              ==========  ==========  ==========
Shares used in computing basic and
  diluted net loss per common share.........     35,815      23,796       4,837
                                              ==========  ==========  ==========

See accompanying notes.

INTUITIVE SURGICAL, INC.
CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY
(IN THOUSANDS, EXCEPT SHARE AMOUNTS)

                                                                                                                        Other
                                          Preferred Stock        Common Stock    Additiona                           Comprehensive
                                      -------------------- --------------------   Paid-in    Deferred   Accumulated     Income
                                         Shares     Amount   Shares     Amount    Capital   Compensation  Deficit       (Loss)      Total
                                      ------------  ------ -----------  -------  ---------  ----------  -----------  ------------  --------
Balances at December 31, 1998........  16,656,000  $   17   6,773,494  $     7  $  78,386  $   (1,128) $   (56,732) $         46  $ 20,596
Issuance of Series E convertible
 preferred stock, net of issuance
 costs of $544.....                     2,478,375       2          --       --     19,281          --           --            --    19,283
Issuance of common stock.............          --      --      79,365       --        265          --           --            --       265
Repurchase of common stock...........          --      --    (171,011)      --        (43)         --           --            --       (43)
Deferred compensation................          --      --          --       --        619        (619)          --            --        --
Amortization of deferred
 compensation........................          --      --          --       --         --         804           --            --       804
Comprehensive loss:
 Other comprehensive income
   (loss) - change in unrealized
   gain (loss) on
   available-for-sale securities.....          --      --          --       --         --          --           --          (279)     (279)
 Net loss............................          --      --          --       --         --          --      (18,415)           --   (18,415)
                                                                                                                                   --------
Comprehensive loss...................          --      --          --       --         --          --           --            --   (18,694)
                                      ------------  ------ -----------  -------  ---------  ----------  -----------  ------------  --------
Balances at December 31, 1999........  19,134,375      19   6,681,848        7     98,508        (943)     (75,147)         (233)   22,211
Issuance of Series F convertible
 preferred stock, net of issuance
 costs of $603.......................   3,678,798       4            --     --     34,752          --           --            --    34,756
Conversion of preferred stock to
 common stock upon closing of
 IPO................................. (22,813,173)    (23) 22,813,173       23         --          --           --            --        --
Issuance of common stock upon
 closing of IPO, net of issuance
 costs of $4,972.....................          --      --   5,750,000        6     46,778          --           --            --    46,784
Issuance of common stock upon
 exercise of options and
 warrants............................          --      --     467,770       --        912          --           --            --       912
Repurchase of common stock...........          --      --     (36,969)      --        (20)         --           --            --       (20)
Fair market value of warrants
 granted.............................          --      --          --       --      1,720          --           --            --     1,720
Deferred compensation................          --      --          --       --      4,063      (4,063)          --            --        --
Amortization of deferred
 compensation........................          --      --          --       --         --       2,523           --            --     2,523
Comprehensive loss:
 Other comprehensive income
   (loss) -- change in unrealized
   gain (loss) on available-for-sale
   securities........................          --      --          --       --         --          --           --           300       300
     Unrealized gain (loss) on
       foreign exchange
       contracts.....................          --      --          --       --         --          --           --            67        67
 Net loss............................          --      --          --       --         --          --      (18,523)           --   (18,523)
                                                                                                                                   --------
Comprehensive loss...................          --      --          --       --         --          --           --            --   (18,156)
                                      ------------  ------ -----------  -------  ---------  ----------  -----------  ------------  --------
Balances at December 31, 2000........          --      --  35,675,822       36    186,713      (2,483)     (93,670)          134    90,730
Issuance of common stock upon
 exercise of options and
 warrants............................          --      --     569,989       --      2,314          --           --            --     2,314
Repurchase of common stock...........          --      --     (22,171)      --        (65)         --           --            --       (65)
Amortization of deferred
 compensation........................          --      --          --       --         --       1,597           --            --     1,597
Comprehensive loss:
 Other comprehensive income
   (loss) -- change in unrealized
   gain (loss) on available-for-sale
   securities........................          --      --          --       --         --          --           --           560       560
     Unrealized gain (loss) on
       foreign exchange
       contracts.....................          --      --          --       --         --          --           --           (67)      (67)
     Foreign currency translation
       adjustments...................          --      --          --       --         --          --           --           (76)      (76)
 Net loss............................          --      --          --       --         --          --      (16,700)           --   (16,700)
                                                                                                                                   --------
Comprehensive loss...................          --      --          --       --         --          --           --            --   (16,283)
                                      ------------  ------ -----------  -------  ---------  ----------  -----------  ------------  --------
Balances at December 31, 2001........          --  $   --  36,223,640  $    36  $ 188,962  $     (886) $  (110,370) $        551  $ 78,293
                                      ============  ====== ===========  =======  =========  ==========  ===========  ============  ========

See accompanying notes.

INTUITIVE SURGICAL, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
(IN THOUSANDS)

                                                       Year Ended December 31,
                                                    ----------------------------
                                                      2001      2000      1999
                                                    --------  --------  --------
OPERATING ACTIVITIES:
Net loss.......................................... $(16,700) $(18,523) $(18,415)
Adjustments to reconcile net loss to net cash
  used in in operating activities:
  Depreciation....................................    2,337     1,595     1,439
  Gain/loss on sales of fixed assets..............      (11)       --        --
  Amortization of deferred compensation...........    1,597     2,573       804
  Amortization of intangible and other assets.....      778       584        --
  Issuance of common stock for technology.........       --        --       150
  Foreign currency translation adjustment.........      (76)       --        --
Changes in operating assets and liabilities:
  Accounts receivable.............................   (6,804)   (4,400)   (2,044)
  Prepaid and other assets........................   (1,423)   (1,124)     (110)
  Inventory.......................................     (106)   (3,215)   (1,602)
  Accounts payable................................    1,172     4,406       466
  Accrued compensation and employee benefits......      (72)    1,284       763
  Warranty accrual................................      337       682       812
  Other accrued liabilities.......................      100       912       445
  Accrued royalty expense.........................       --     1,000        --
  Deferred revenue................................      318     1,422     1,365
                                                    --------  --------  --------
Net cash used in operating activities.............  (18,553)  (12,804)  (15,927)
                                                    --------  --------  --------
INVESTING ACTIVITIES:
Acquisition of property and equipment.............   (5,527)   (3,555)     (931)
Disposition of property and equipment.............       36        --        --
Acquisition of patents............................       --    (3,000)       --
Purchase of short-term investments................  (59,910)  (70,096)  (38,292)
Proceeds from sales of short-term investments.....   35,990     6,900       910
Proceeds from maturities of short-term
  investments.....................................   35,023    18,933    28,000
                                                    --------  --------  --------
Net cash provided by (used in) investing
  activities......................................    5,612   (50,818)  (10,313)
                                                    --------  --------  --------
FINANCING ACTIVITIES:
Proceeds from issuance of preferred stock, net....       --    34,756    19,283
Proceeds from issuance of common stock, net.......    2,314    47,696       115
Repurchase of common stock........................      (65)      (20)      (43)
Proceeds from notes payable.......................      550     1,500     2,000
Repayment of notes payable........................   (2,028)   (1,759)   (1,178)
                                                    --------  --------  --------
Net cash provided by financing activities.........      771    82,173    20,177
                                                    --------  --------  --------
Net increase (decrease) in cash and cash
  equivalents.....................................  (12,170)   18,551    (6,063)
Cash and cash equivalents, beginning of year......   22,657     4,106    10,169
                                                    --------  --------  --------
Cash and cash equivalents, end of year............ $ 10,487  $ 22,657  $  4,106
                                                    ========  ========  ========
SUPPLEMENTAL DISCLOSURE OF CASH FLOW
INFORMATION:
  Interest paid................................... $    268  $    404  $    397
                                                    ========  ========  ========

  Issuance of warrants for license and services... $     --  $  1,720  $     --
                                                    ========  ========  ========

See accompanying notes

INTUITIVE SURGICAL, INC.
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations

Intuitive Surgical, Inc. (the "Company") was incorporated in Delaware on November 9, 1995 and is engaged in the development, manufacture and marketing of products designed to provide the flexibility of open surgery while operating through ports. In 1999, the Company began to manufacture, market and sell its products in Europe and the United States. The Company expects to expend substantial additional funds and continue to incur significant operating losses for at least the next two years as it continues to fund clinical trials in support of regulatory approvals and expands research and development activities, manufacturing capabilities and sales and marketing activities.

Consolidation

The accompanying consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation.

Cash and Cash Equivalents

The Company considers all highly liquid investments with an original maturity from date of purchase of 90 days or less to be cash equivalents for the purpose of balance sheet and statement of cash flows presentation. The carrying value of cash and cash equivalents approximates market value at December 31, 2001 and 2000.

Short-Term Investments

All short-term investments are classified as available-for-sale and therefore carried at fair value. The Company views its available-for-sale portfolio as available for use in its current operations. Accordingly, all investments are classified as short-term, even though the stated maturity date may be one year or more beyond the current balance sheet date. Available-for-sale securities are stated at fair value based upon quoted market prices of the securities. Unrealized gains and losses on such securities, when material, are reported as a separate component of stockholders' equity. Realized gains and losses on available-for-sale securities are included in interest income. The cost of securities sold is based on the specific identification method. Interest and dividends on securities classified as available-for-sale are included in interest income.

Foreign Currency Translation

The functional currency of each foreign subsidiary is its local currency. Foreign assets and liabilities are translated into U.S. dollars at year-end exchange rates when appropriate, while components of the income statement are translated using average exchange rates in effect throughout the year. Gains and losses arising from foreign currency transactions are included in the consolidated statement of operations. Translation adjustments of balance sheet items are included as a component of stockholders' equity.

Concentrations of Risk

Financial instruments which subject the Company to potential risk consists of its cash equivalents, short-term investments, accounts receivable, and foreign exchange contracts. The counterparties to the agreements relating to the Company's investment securities and foreign exchange contracts consist of various major corporations and financial institutions of high credit standing. We believe the financial risks associated with these financial instruments are minimal. For the year ended December 31, 2001, one customer accounted for 15% of total sales. For the year ended December 31, 2000, none of our customers accounted for 10% or greater of total sales. The Company extends reasonably short collection terms but does not require collateral. The Company provides reserves for potential credit losses but has not experienced significant losses to date.

The Company's da Vinci Surgical System, related instruments and accessories and service have accounted for all of the Company's sales for the years ended December 31, 2001 and 2000. Purchases of key parts and components used to manufacture our products are from limited supply sources. The inability of any of these suppliers to fulfill our supply requirements may negatively impact future operating results.

Inventories

Inventories are stated at the lower of cost (determined on a first-in, first-out basis) or market value.

Property and Equipment

Property and equipment are stated at cost, net of accumulated depreciation. Property and equipment are depreciated on a straight-line basis over the estimated useful lives of the assets, generally three to five years.

Intangible and Other Assets

Purchased intangible assets represent patents which are carried at cost less accumulated amortization. Amortization is computed using the straight-line method over the expected useful life of six years. At December 31, 2001, gross intangible assets totaled $4.7 million and related accumulated amortization was $1.4 million. At December 31, 2000 gross intangible assets totaled $4.7 million and related accumulated amortization was $584,000.

Impairment of Long-Lived Assets

In accordance with Statement of Financial Accounting Standards No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of," we evaluate long-lived assets, including intangible and other assets, for impairment whenever events or changes in circumstances indicate that the carrying value of an asset may not be recoverable based on expected undiscounted cash flows attributable to that asset. The amount of any impairment is measured as the difference between the carrying value and the fair value of the impaired asset. There were no long-lived assets that were considered to be impaired during the periods presented.

Software Development Costs

We account for our software costs in accordance with Statement of Financial Accounting Standards No. 86, "Accounting for the Costs of Computer Software to be Sold, Leased, or Otherwise Marketed". Software development costs are included in research and development and are generally expensed as incurred. The time periods involved and costs incurred between achieving technological feasibility and the general availability of our software enhancements are insignificant. Production and distribution costs are also minimal. Accordingly, we have not capitalized any software development costs to date.

Warranty Accrual

The Company's standard policy is to warrant all shipped systems against defects in design, materials and workmanship by replacing failed parts during the first year of ownership. The warranty accrual is reduced by the cost of the replacement parts and labor over the warranty period. Estimated expenses for warranty obligations are accrued at the time revenue is recognized and are included in cost of sales.

Other Financial Instruments

The Company uses forward foreign exchange contracts that are designated to reduce a portion of its exposure to foreign currency risk from operational and balance sheet exposures resulting from changes in foreign currency exchange rates. Such exposures result from sales denominated in foreign currencies. The forward contracts, which have only nominal intrinsic value at the time of purchase, are denominated in the same foreign currency in which the sales are denominated. The gains and losses on these forward contracts as well as the offsetting losses and gains on the hedged receivables are recognized depending on whether the derivative instrument is designated and qualifies as part of a hedging relationship and, if so, the nature of the hedging activity. During the year ended December 31, 2001, the Company did not designate and qualify any forward contracts as part of a hedging relationship. Accordingly, changes in the fair value of derivatives that do not qualify for hedge treatment, as well as the ineffective portion of a particular hedge, are recognized currently in earnings. All derivative instruments are recorded as either current assets or accrued liabilities in the balance sheet at fair value.

The Company does not use derivative financial instruments for speculative trading purposes, nor does it hold or issue leveraged derivative financial instruments. At December 31, 2001, the Company had no outstanding derivative instruments.

Research and Development

Research and development costs, which include clinical and regulatory costs, are expensed to operations as incurred in accordance with Statement of Financial Accounting Standards No. 2, "Accounting for Research and Development Costs."

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ materially from these estimates.

Stock-Based Compensation

The Company has adopted the provisions of Statement of Financial Accounting Standards No. 123, "Accounting for Stock-Based Compensation" ("SFAS 123"). In accordance with the provisions of SFAS 123, the Company applies APB Opinion 25 ("APB 25"), "Accounting for Stock Issued to Employees" and related interpretations in accounting for its stock option grants to employees and directors with an exercise price equal to or in excess of the fair value of the shares at the date of grant. The Company accounts for stock awards granted to non-employees in accordance with SFAS 123 and related interpretations. (See Note 9, Stockholders' Equity.)

Revenue Recognition

We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred or service has been rendered, the price is fixed or determinable and collectibility is reasonably assured.

Revenue from system sales is generally recognized upon installation for direct sales and upon shipment for sales to our distributors. If substantial contractual obligations exist after system installation, revenue is recognized after such obligations are fulfilled. In certain instances, contract terms may provide for customer acceptance and transfer of title to occur prior to installation for direct sales. In those instances, we account for the sale as a multiple element arrangement and defer revenue recognition on the fair value of any undelivered elements, including installation. The fair value of the undelivered elements are then recognized when the outstanding obligations are fulfilled.

Our distributors do not have price protection rights. One of our distributors has return rights under limited circumstances. Such rights are accounted for under the provisions of SFAS No. 48. To date, we have not had any returns of our systems.

Revenue from sales of instruments and accessories is recognized upon shipment. Revenue related to future commitments under service contracts is deferred and recognized ratably over the service period. Amounts billed in excess of revenue recognized are included as deferred revenue in the accompanying consolidated balance sheets.

Our da Vinci Surgical System contains a software component. We believe that the software element of our da Vinci Surgical System is an incidental part of the system. The software element within our product is not sold or marketed separately to customers and the software does not operate independently of the surgical system. Furthermore, the software development effort does not require a significant cost to the Company relative to the overall development cost of the product. As such, the software we provide is incidental to the surgical system as a whole and the software revenue guidance provided in SOP 97-2 is not applicable to our revenues.

Advertising Costs

Advertising costs are expensed as incurred. Advertising costs for the years ended December 31, 2001, 2000, and 1999 were $1.5 million, $1.1 million and $448,000, respectively.

Shipping and Handling Costs

Shipping and handling costs are incurred by the Company and are recorded as cost of goods sold in the income statement.

Segment Disclosures

The Company operates in one segment, the development and marketing of products designed to The Company operates in one segment, the development and marketing of products designed to provide the flexibility of open surgery while operating through ports. For the year ended December 31, 2001, sales to the U.S. and Europe accounted for 69% and 31% of total sales, respectively. For the year ended December 31, 2000, sales to the U.S. and Europe accounted for 68% and 32% of total sales, respectively. For the year ended December 31, 1999, sales to the U.S. and Europe accounted for 25% and 75% of total sales, respectively. Sales in the U.S. included sales to the Company's Japanese distributor's U.S. subsidiary, which represented 3%, 4% and 16% of total sales for the years ended December 31, 2001, 2000 and 1999, respectively.

Recent Accounting Pronouncements

In June 1998, the Financial Accounting Standards Board (FASB) issued Statement of Financial Accounting Standards (SFAS) No. 133, "Accounting for Derivative Instruments and Hedging Activities" ("SFAS 133"). We adopted SFAS 133 effective January 1, 2001. This statement establishes accounting and reporting standards requiring that every derivative instrument, including certain derivative instruments embedded in other contracts, be recorded in the balance sheet as either an asset or liability measured at its fair value. The statement also requires that changes in the derivative's fair value be recognized in earnings unless specific hedge accounting criteria are met. The adoption of SFAS 133, as amended, has not had a significant impact on our financial position or results of operations.

In July 2001, the FASB issued SFAS No. 141 "Business Combinations" and SFAS No. 142 "Goodwill and Other Intangible Assets," effective for fiscal years beginning after December 15, 2001. SFAS No. 141 requires that the purchase method of accounting be used for all business combinations initiated after June 30, 2001, and that the use of the pooling-of-interest method is no longer allowed. Under SFAS No. 142 goodwill and intangible assets deemed to have indefinite lives will no longer be amortized but will be subject to an annual impairment test in accordance with the new standards. Other intangible assets will continue to be amortized over their respective useful lives. The Company will adopt SFAS No. 141 and SFAS No. 142 as of January 1, 2002. The Company does not currently believe that the adoption of SFAS No. 141 and SFAS No. 142 will have a significant impact on its financial position or results of operations.

In August 2001, the FASB issued SFAS No. 144 "Accounting for the Impairment or Disposal of Long-Lived Assets", effective for fiscal years beginning after December 15, 2001. SFAS No. 144 addresses financial accounting and reporting for impairment or disposal of long-lived assets and supersedes SFAS 121. The Company will adopt SFAS No. 144 as of January 1, 2002. The Company does not currently believe that the adoption of SFAS No. 144 will have a significant impact on its financial position or results of operations.

2. NET LOSS PER SHARE

The following table presents the computation of basic and diluted net loss per share (in thousands):

                                                Year Ended December 31,
                                          -------------------------------------
                                             2001         2000         1999
                                          -----------  -----------  -----------
Numerator used for basic and diluted
  net loss per common share............. $   (16,700) $   (18,523) $   (18,415)
                                          ===========  ===========  ===========
Denominator used for basic and diluted
  net loss per common share:
  Weighted-average shares outstanding...  35,990,598   24,686,201    6,729,580
  Less weighted-average shares subject
     to repurchase......................    (175,864)    (890,365)  (1,892,115)
                                          -----------  -----------  -----------
  Weighted-average shares used in
     computing basic and diluted
     net loss per common share..........  35,814,734   23,795,836    4,837,465
                                          ===========  ===========  ===========
Basic and diluted net loss per
  common share.......................... $     (0.47) $     (0.78) $     (3.81)
                                          ===========  ===========  ===========
Potentially dilutive securities
  excluded from diluted net loss per
  share computation because they
  are anti-dilutive.....................   3,432,226    2,381,449   26,940,981

3. AVAILABLE-FOR-SALE SECURITIES

The following table summarizes available-for-sale securities included in cash and cash equivalents and short-term investments as of the respective dates (in thousands):

                                     December 31, 2001                       December 31, 2000
                           --------------------------------------  --------------------------------------
                                           Unrealized                              Unrealized
                           Amortized ------------------    Fair    Amortized ------------------    Fair
                             Cost     Gains     Losses    Value      Cost     Gains     Losses    Value
                           --------  --------  --------  --------  --------  --------  --------  --------
U.S. corporate debt......   34,894       562        (6)   35,450    27,661       116       (28)   27,749
U.S. government debt.....    9,553        76        (5)    9,624     7,000        19       (36)    6,983
Municipal debt...........    5,500        --        --     5,500    26,050        --        --    26,050
Commercial paper.........       --        --        --        --    12,794        --        (4)   12,790
Other debt securities....    5,600        --        --     5,600     4,041        --        --     4,041
                           --------  --------  --------  --------  --------  --------  --------  --------
                          $ 55,547  $    638  $    (11) $ 56,174  $ 77,546  $    135  $    (68) $ 77,613
                           ========  ========  ========  ========  ========  ========  ========  ========
Reported as:
Cash equivalents......... $     --  $     --  $     --  $     --  $ 10,829  $     --  $     --  $ 10,829
Short-term investments...   55,547       638       (11)   56,174    66,717       135       (68)   66,784
                           --------  --------  --------  --------  --------  --------  --------  --------
                          $ 55,547  $    638  $    (11) $ 56,174  $ 77,546  $    135  $    (68) $ 77,613
                           ========  ========  ========  ========  ========  ========  ========  ========

The Company views its available-for-sale portfolio as available for use in its current operations. The following is a summary of the cost and estimated fair value of available-for-sale securities at December 31, 2001, by maturity date:

                                          2001
                                  ---------------------
                                  Amoritzed     Fair
                                    Cost        Value
                                  ---------------------
Mature in less than 1 year..... $   32,235  $   32,400
Mature in one to five years....     23,312      23,774
                                  ---------   ---------
          Total................ $   55,547  $   56,174
                                  =========   =========

Realized gains on available-for-sale securities were $59,000, $112,000, and $210,000 for the years ended December 31, 2001, 2000, and 1999, respectively. There were no realized losses on available-for-sale securities for the years ended December 31, 2001, 2000, and 1999.

4. INVENTORIES

Inventories consist of the following (in thousands):

                                                   December 31,
                                               --------------------
                                                 2001       2000
                                               --------------------
Raw materials................................ $   3,577  $   2,650
Work-in-process..............................     1,330      1,130
Finished goods...............................     1,275      2,296
                                               ---------  ---------
          Total.............................. $   6,182  $   6,076
                                               =========  =========

5. PROPERTY AND EQUIPMENT

Property and equipment consists of the following (in thousands):

                                                   December 31,
                                               --------------------
                                                 2001       2000
                                               --------------------
Computer equipment........................... $   3,569  $   2,827
Laboratory and manufacturing equipment.......     4,158      2,717
Office furniture and equipment...............     1,046      1,041
Leasehold improvements.......................     2,532      1,407
Software.....................................     3,896      1,858
                                               ---------  ---------
                                                 15,201      9,850
Less accumulated depreciation and amortizatio    (7,367)    (5,181)
                                               ---------  ---------
Property and equipment, net.................. $   7,834  $   4,669
                                               =========  =========

6. EMPLOYEE BENEFIT PLAN

Effective May 1, 1996, the Company established a defined contribution retirement plan (the "Plan"). All U.S. employees who are at least 21 years of age are eligible to participate. Contributions of up to 15% of compensation may be made by employees to the Plan through salary withholdings. Employer contributions are made solely at the Company's discretion. No employer contributions were made to the Plan for the years ended December 31, 2001, 2000, and 1999.

7. COMMITMENTS AND CONTINGENCIES

Operating Leases

We leased approximately 50,000 square feet in Mountain View, California. The lease expired in February 2002 and was not renewed.

The Company entered into a lease arrangement for office space in Sunnyvale, California effective January 2002. The lease expires April 30, 2007. The lease includes a renewal option for one additional five-year term.

Future minimum rental commitments under the operating leases as of December 31, 2001 are as follows (in thousands):

      2002.............................. $   1,328
      2003..............................     1,881
      2004..............................     2,681
      2005..............................     2,761
      2006..............................     2,844
      Thereafter........................       976
                                          ---------
                Total................... $  12,471
                                          =========

Rent expense was approximately $936,000, $884,000, and $882,000 for the years ended December 31, 2001, 2000, and 1999, respectively. Rental income from a sublease was approximately $175,000 and $244,000 for the years ended December 31, 2000 and 1999, respectively. This sublease agreement expired in July 2000.

Contingencies

The arrangement entered into with IBM in December 1997 provides for two payments of $1.0 million each upon the Company reaching revenue milestones, as defined, of $25.0 million and $50.0 million, respectively. Each $1.0 million payment is due and payable after the end of the fiscal year in which the cumulative total of all sales of products and services in that year meet the revenue milestone. The Company reached the $25.0 million revenue milestone in fiscal year 2000 and therefore accrued a $1.0 million royalty payable at December 31, 2000. The Company reached the $50.0 million revenue milestone in fiscal year 2001 and therefore accrued a $1.0 million royalty payable at December 31, 2001. Other than described, no further payments are due under the IBM arrangement.

On May 10, 2000, Computer Motion, Inc. filed a lawsuit in United States District Court for the Central District of California (Case No. CV00-4988 CBM) alleging that by making, using, selling or offering for sale our da Vinci Surgical System, we are infringing United States Patent Numbers 5,524,180, 5,762,458, 5,815,640, 5,855,583, 5,878,193, 5,907,664 and 6,001,108 in willful disregard of Computer Motion's patent rights. On June 1, 2000, Computer Motion amended its lawsuit to allege that we also infringe U.S. Patent Number 6,063,095. On October 30, 2000, Computer Motion filed a motion seeking to add U.S. Patent Number 6,102,850 to the litigation. Each of these nine patents concerns methods and devices for conducting various aspects of robotic surgery. Until February 2001, the litigation was proceeding in the early stages of discovery, with no trial date set. In February 2001, in response to Intuitive's request, the District Court stayed -- put on hold -- all proceedings in the litigation because of the declaration by the U.S. Patent and Trademark Office ("PTO") of three "interferences" proceedings between a single SRI patent application exclusively licensed to us and three of Computer Motion's patents (see next paragraph). In February 2002, over Computer Motion's objection, the District Court extended the stay through a status conference presently scheduled for late March 2002. At that conference, Intuitive and Computer Motion will discuss with the Court the propriety of further extending the stay through decisions by the Patent Office in the interferences. The Computer Motion action seeks damages based upon the making, using, selling and offering for sale of our products and processes, and seeks to enjoin our continued activities relating to these products. This action subjects us to potential liability for damages, including treble damages, and could require us to cease making, using or selling the affected products, or to obtain a license in order to continue to manufacture, use or sell the affected products. While we continue to believe we have multiple meritorious defenses to this action, we cannot assure you that we ultimately will prevail on any issue in the litigation or that we will be able to successfully defend Computer Motion's charges, nor can we provide assurance that any license required would be made available on commercially acceptable terms, if at all. Failure to successfully defend against the Computer Motion action could harm our business, financial condition and operating results. Due to the inherent uncertainties of litigation, we cannot accurately predict the ultimate outcome of this matter at this time and, therefore, cannot estimate the range of possible loss.

On December 7 and 8, 2000, the U.S. Patent Office formally declared three interference proceedings between a single SRI patent application licensed to Intuitive and three of Computer Motion's patents: Nos. 5,855,583, 5,878,193, and 5,907,664. An interference is a proceeding within the U.S. Patent Office to resolve questions regarding the patentability of inventions and who first invented subject matter claimed by two or more patents or patent applications. These three interferences resulted from requests for interference filed in May through July 1999. Because the SRI patent application licensed to Intuitive was filed in January 1992 and Computer Motion's three patents were filed no earlier than August 1992 and as late as February 1996, SRI/Intuitive will be the "Senior Party" in each interference. As "Junior Party," Computer Motion will bear the burden of proving that it is entitled to keep its patents. During the first half of 2001, the parties filed over 20 motions in the three interferences. On October 10, 2001, the PTO held a hearing on all motions filed in all three interferences. Decisions regarding all of the motions are presently expected by the end of April 2002.

In September 2000, we filed a Notice of Opposition in the European Patent Office ("EPO") challenging European Patent No. 653,922, which was issued to Computer Motion in 1999 and is related to several of the patents now involved in the U.S. litigation and the interference proceedings. An Opposition proceeding allows the EPO to determine whether the challenged patent should be revoked in its entirety, should be amended, or should remain unaltered. In its Notice of Opposition, Intuitive cited numerous prior art references not cited to the EPO during the '922 patent's original prosecution.

On March 30, 2001, Intuitive and International Business Machines Corporation ("IBM") jointly filed suit against Computer Motion, Inc. in the U.S. District Court for the District of Delaware. The complaint alleges that by continuing to make, use, sell, and offer for sale its AESOP and ZEUS voice-controlled products, Computer Motion willfully infringes U.S. Patent No. 6,201,984. The '984 patent which concerns various aspects of voice control of surgical instruments issued to IBM in early March 2001 and is exclusively licensed to us. The '984 patent predates by several years Computer Motion's development of voice-controlled surgical robots. Because Computer Motion's voice-controlled HERMES product interfaces with the AESOP and ZEUS products, HERMES is also implicated in the patent infringement complaint. Trial is presently set for the third quarter of 2002. The Court so far has denied Computer Motion's request to add its own U.S. Patent No. 6,244,809 to this Delaware litigation and has refused to entertain Computer Motion's allegations that we infringe the '809 patent by making, using, selling and offering for sale our da Vinci Surgical System. The Delaware Court has also refused Computer Motion's request to transfer the litigation to California.

On September 1, 2000, Brookhill-Wilk 1, LLC ("Wilk") filed a lawsuit in the United States District Court for the Southern District of New York (Case No. 00 Civ. 6599 (NRB)) alleging that by making, using, selling or offering for sale our da Vinci Surgical System, we are infringing U.S. Patent Nos. 5,217,003 and 5,368,015 in willful disregard of Wilk's patent rights. These patents concern methods and devices for "remote" surgery. In March 2001, Wilk withdrew its assertion of the "015 patent against Intuitive, leaving only the '003 patent at issue in the suit. On November 8, 2001, the District Court granted summary judgment of noninfringement of the '003 patent in our favor and dismissed Wilk's complaint in its entirety. Wilk has since filed a notice with the U.S. Court of Appeals for the Federal Circuit to appeal the summary judgment ruling. Briefing on the appeal should conclude in mid-2002, with a hearing date possible towards the end of 2002 or in early 2003. We believe the appellate court will uphold the summary judgment of noninfringement. However, if we lose the appeal and ultimately also lose Wilk's suit against us, it will hurt our competitive position, may be costly to us and may prevent us from selling our products. In addition, if we lose the patent suit, we may need to obtain from Wilk a license to this technology if we are to continue to market our products that have been found to infringe Wilk's patents. This license could be expensive, which could seriously harm our business. We believe that we have multiple meritorious defenses in this action. However, litigation is unpredictable and we may not prevail with any of these defenses. If Wilk is successful in its suit against us and is unwilling to grant us a license, we may be required to stop selling our products that are found to infringe Wilk's patents unless we can redesign them so they do not infringe Wilk's patents, which we may be unable to do. In addition, if we lose the patent suit, we could be required to pay Wilk damages, including treble damages, which could be substantial and harm our financial position.

The Company is subject to legal proceedings and claims that arise in the normal course of its business. We cannot assure that we will prevail in these matters nor can we assure that any remedy could be reached on commercially viable terms, if at all. Due to the inherent uncertainties of litigation, the Company cannot accurately predict the ultimate outcome of these matters at this time and, therefore, cannot estimate the range of possible loss.

8. NOTES PAYABLE

Notes payable consists of the following (in thousands):

                                                                        December 31,
                                                                     ------------------
                                                                       2001      2000
                                                                     --------  --------
Note payable, due in monthly installments through April 1, 2001
  Interest rate of 13.8% at December 31, 2001...................... $     --  $    201
Note payable, due in monthly installments through August 1, 2001
  Interest rate of 12.1% at December 31, 2001......................       --       188
Note payable, due in monthly installments through June 1, 2002
  Interest rate of 9.0% at December 31, 2001.......................      264       502
Note payable, due in monthly installments through June 1, 2002
  Interest rate of 9.0% at December 31, 2001.......................      264       502
Note payable, due in monthly installments through June 1, 2002
  Interest rate of 9.9% at December 31, 2001.......................      280       803
Note payable, due in monthly installments through October 1, 2002
  Interest rate of 10.2% at December 31, 2001......................      154       323
Note payable, due in monthly installments through April 1, 2003
  Interest rate of LIBOR plus 3.75% which is 5.875% at
     December 31, 2001.............................................      222       361
Note payable, due in monthly installments through January 1, 2004
  Interest rate of 9.0% at December 31, 2001.......................      723     1,000
Note payable, due in monthly installments through August 1, 2004
  Interest rate of 8.5% at December 31, 2001........................     495        --
                                                                     --------  --------
                                                                       2,402     3,880
Less current portion...............................................   (1,631)   (2,019)
                                                                     --------  --------
                                                                    $    771  $  1,861
                                                                     ========  ========

Notes payable are collateralized by fixed assets specified under each agreement. Assets collateralized under these agreements total $7.2 million and $8.0 million at December 31, 2001 and 2000, respectively. Certain of the notes payable contain covenants pertaining to profitability levels and certain other financial ratios. As of December 31, 2001, the Company is in compliance with all covenants. Principal maturities of notes payable at December 31, 2001 are as follows: 2002 -- $1.63 million; 2003 -- $606,000; and 2004 -- $166,000.

The fair value of notes payable is estimated based on current interest rates available to the Company for debt instruments with similar terms, degrees of risk and remaining maturities. The carrying values of these obligations approximate their respective fair values as of December 31, 2001 and 2000.

9. STOCKHOLDERS' EQUITY

Convertible Preferred Stock

During the first quarter of the year ended December 31, 2000, the Company issued 3,593,875 shares of Series F convertible preferred stock, upon exercise of warrants at a weighted-average exercise price of $9.84 per share, for net proceeds of $34.8 million.

Each share of Series A, B, C, D and E convertible preferred stock then outstanding was converted automatically upon the closing of the Company's initial public offering on a one-for-one basis into 19,134,375 shares of common stock. Each share of Series F convertible preferred stock was converted on a 1.02363638 basis into 3,678,798 shares of common stock.

On June 13, 2000, as part of the initial public offering of our common stock, we issued 5,000,000 shares of our common stock at an offering price of $9.00 per share. On July 13, 2000, the underwriters exercised in full their over-allotment option to purchase an additional 750,000 shares at $9.00 per share. Cash proceeds from the sale of the 5,750,000 shares of common stock, net of underwriters' discount and offering expenses, totaled approximately $46.8 million.

Common Stock

The Company has reserved the following shares of common stock for the exercise of warrants and the issuance of options and rights granted under the Company's stock option plans as follows:

                                             December 31,
                                       -----------------------
                                          2001        2000
                                       ----------- -----------
Warrants..............................      5,081     205,081
Stock option plans.................... 10,230,024   7,030,726
                                       ----------- -----------
                                       10,235,105   7,235,807
                                       =========== ===========

The Company has previously issued shares of common stock, which are subject to the Company's right to repurchase at the original issuance price upon the occurrence of certain events as defined in the agreements relating to the sale of such stock. As of December 31, 2001, 2000, and 1999 shares subject to repurchase were 34,561, 409,612, and 1,232,006, respectively.

Warrants

In April 1997, in connection with one of the notes payable discussed in Note 8, the Company issued a warrant to purchase 11,000 shares of common stock at an exercise price of $5.00 per share. In August 2000, this warrant was exercised under a net exercise provision resulting in the issuance of 7,774 shares of common stock.

In conjunction with the issuance of Series E convertible preferred stock, the Company issued to each purchaser a warrant to purchase shares in Series F convertible preferred stock at a price initially equal to $8.00 per preferred share. Warrants to purchase 5,096,875 shares of Series F convertible preferred stock were issued. The exercise price increased on every subsequent one-month anniversary of the issuance date by $0.1667 per month up to a maximum exercise price of $10.00 per preferred share. During the year ended December 31, 2000, warrants to purchase 3,593,875 shares of Series F convertible preferred stock were exercised at a weighted-average exercise price of $9.84 per share for net proceeds of $34.8 million. The unexercised warrants expired in March 2000.

In June 2000, the Company issued a warrant to purchase 5,081 shares of common stock at an exercise price of $9.00 per share to one company. The warrant, which was fully vested and immediately exercisable, expires in June 2010. The value of the warrant was estimated using the Black-Scholes option pricing model and was determined to be immaterial.

In April 2000, the Company entered into an agreement with Heartport, Inc. to exclusively license a number of Heartport's patents in exchange for cash of $3.0 million and a warrant to purchase 200,000 shares of common stock at an exercise price of $3.00 per share. In accordance with EITF 96-18, "Accounting for Equity Instruments That Are Issued to Other Than Employees for Acquiring, or in Conjunction with Selling Goods or Services," the value of the warrant was estimated using the Black-Scholes option pricing model with the following assumptions: stock price on the date of grant of $9.90 per share, risk-free interest rate of 6.5%, contractual life of 5 years, volatility of 0.75 and no dividend yield, resulting in a value of $1.7 million. As a result of this agreement, we capitalized approximately $4.7 million as intangible and other assets, which will be amortized over the estimated useful life of the patents which is approximately six years. The warrant, which was fully vested and immediately exercisable was exercised by Heartport, Inc. in June 2001.

Stock Option Plans

In January 1996, the Board of Directors adopted, and the stockholders approved, the 1996 Equity Incentive Plan (the "1996 Plan") under which employees, consultants and directors may be granted Incentive Stock Options ("ISOs") and Nonstatutory Stock Options ("NSOs") to purchase shares of the company's common stock. The 1996 Plan permits ISOs to be granted at an exercise price not less than the fair value on the date of grant and NSOs at an exercise price not less than 85% of the fair value on the date of grant. Options granted under the 1996 Plan generally expire 10 years from the date of grant and become exercisable upon grant subject to repurchase rights in favor of the Company until vested. Options generally vest 12.5% upon completion of 6 months service and 1/48 per month thereafter; however, options may be granted with different vesting terms as determined by the Board of Directors. A total of 4,840,000 shares of common stock have been authorized for issuance pursuant to the 1996 Plan as of December 31, 2001.

In March 2000, the Board of Directors adopted the 2000 Equity Incentive Plan, which took effect upon the closing of the Company's initial public offering. The Company has reserved an additional 5,160,000 shares under this plan. This plan is an amendment and restatement of the 1996 Plan. Also in March 2000, the Board of Directors adopted the 2000 Non-Employee Directors' Stock Option Plan and the 2000 Employee Stock Purchase Plan. The Company has reserved 300,000 and 1,000,000 shares for the issuances under these plans, respectively. These plans were also effective upon the closing of the Company's initial public offering. Each of these plans contains an evergreen provision whereas the authorized shares are automatically increased concurrent with the Company's annual meeting of shareholders. In May 2001, the Company reserved an additional 1,986,600 shares for the 2000 Equity Incentive Plan, 107,487 shares for the 2000 Non-Employee Directors' Stock Option Plan and 179,145 shares for the 2000 Employee Stock Purchase Plan.

Option activity under the 1996 and 2000 Plans was as follows:

                                         2001                  2000                  1999
                               --------------------- --------------------- ---------------------
                               Number of   Weighted  Number of   Weighted  Number of   Weighted
                                 Shares     Average    Shares     Average    Shares     Average
                                 Under     Exercise    Under     Exercise    Under     Exercise
                                 Option      Price     Option      Price     Option      Price
                               ----------  --------- ----------  --------- ----------  ---------
Outstanding at January 1...... 1,766,756       3.27  1,466,725  $    1.90  1,036,500  $    1.21
  Options granted............. 2,146,251       7.55    823,600       4.94    641,050       3.00
  Options exercised...........  (188,915)      2.19   (459,996)      1.98    (29,365)      2.21
  Options canceled............  (331,508)      5.06    (63,573)      2.69   (181,460)      1.82
                               ----------            ----------            ----------
Outstanding at December 31.... 3,392,584       5.85  1,766,756       3.27  1,466,725       1.90
                               ==========            ==========            ==========
Exercisable at December 31.... 1,604,426       3.65  1,517,923  $    2.31  1,434,814  $    1.88
                               ==========            ==========            ==========

Additional information concerning options outstanding at December 31, 2001 is as follows:

                        Options Outstanding          Options Exercisable
                   -------------------------------- ---------------------
                               Weighted
                               Average    Weighted              Weighted
                              Remaining    Average               Average
                   Number of  Contractual Exercise  Number of   Exercise
  Exercise Prices    Shares      Life       Price     Shares      Price
 ----------------- ---------- ----------  --------- ----------  ---------
$0.05 -  0.50.....   325,500       5.40       0.50    325,500       0.50
 1.50 -  3.00.....   861,715       7.60       2.87    861,715       2.87
 3.35 -  8.00..... 1,692,769       9.00       7.09    345,902       7.12
 8.06 - 16.13.....   512,600       9.40      10.19     71,309      10.64
                   ----------                       ----------
$0.05 - 16.13..... 3,392,584       8.40       5.85  1,604,426       3.65
                   ==========                       ==========

Under the 1996 and 2000 Plans, the Company may also grant rights to purchase restricted stock. Terms and conditions of these rights are determined by the Board of Directors. However, no right shall be granted at an exercise price which is less than 85% of the fair value of the Company's common stock on the date of grant. Exercise of these share purchase rights are made pursuant to restricted stock purchase agreements containing provisions established by the Board of Directors. These provisions give the Company the right to repurchase the shares at the original purchase price of the stock. The right expires at a rate determined by the Board of Directors, generally at a rate of 12.5% after 6 months and 1/48 per month thereafter. For the years ended December 31, 2001, 2000, and 1999, the Company repurchased 22,171, 36,969, and 117,677 shares under the 1996 and 2000 Plans.

As of December 31, 2001, 2000, and 1999, 6,837,440, 5,263,970, and 203,997 shares were available for future grant under the 1996 and 2000 Plans.

For the years ended December 31, 2001, 2000, and 1999, the Company recorded deferred stock compensation of $0, $4.1 million, and $619,000, respectively, representing the difference between the exercise price and the fair value for accounting purposes of the Company's common stock on the date such options were granted. For the years ended December 31, 2001, 2000, and 1999, the Company recorded amortization of deferred stock compensation of $1.6 million, $2.5 million, and $800,000, respectively. As of December 31, 2001 and 2000, the Company had $886,000 and $2.5 million of remaining unamortized deferred compensation, respectively. Such amount is included as a reduction of stockholders' equity and is being amortized over the vesting period of the underlying options using the graded-vesting method. Future amortization of deferred compensation at December 31, 2001 is as follows: 2002 -- $662,000 and 2003 -- $227,000.

Stock-Based Compensation

Pro forma information regarding net loss is required by SFAS No. 123, as if the Company had accounted for its employee stock options under the fair value method of SFAS 123. Option valuation models require the input of highly subjective assumptions. Because the Company's employee stock options have characteristics significantly different from those of traded options, and because changes in the subjective input assumptions can materially affect the fair value estimate, in management's opinion, the existing models do not necessarily provide a reliable measure of the fair value of its employee stock options.

The weighted-average estimated fair value of these options during fiscal 2001, 2000, and 1999 was $3.4, $1.07, and $1.37 per share, respectively. The fair value of these options was estimated at the date of grant using the Black-Scholes option pricing model using the following weighted-average assumptions:

                                  Years Ended December 31
                             ----------------------------
                               2001      2000      1999
                             --------  --------  --------
Expected life (in years)....     6.3       4.0       2.5
Risk-free interest rate.....     4.4 %     5.9 %     5.9 %
Volatility..................    0.96      0.85      0.75
Dividend yield..............      --        --        --

We have elected to follow APB 25 in accounting for our employee stock options. Under APB 25, we recognize no compensation expense in our financial statements except in connection with the grant of restricted stock for nominal consideration and unless the exercise price of our employee stock option is less than the market price of the underlying stock on the grant date.

We determined the following pro forma information regarding net income and earnings per share as if we had accounted for our employee stock options under the fair value method prescribed by SFAS 123. For purposes of pro forma disclosures, the estimated fair value of the options is amortized to expense over the vesting periods. The pro forma information is as follows (in thousands, except per share amounts):

                                       Years Ended December 31
                                 -------------------------------
                                   2001       2000       1999
                                 ---------  ---------  ---------
Pro forma net loss............. $ (20,247) $ (18,800) $ (18,700)
Pro forma net loss per share:
  Basic........................ $   (0.57) $   (0.79) $   (3.87)
  Diluted...................... $   (0.57) $   (0.79) $   (3.87)

10. INCOME TAXES

There is no provision for income taxes because the Company has incurred operating losses.

Deferred income taxes reflect tax carryforwards and the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting and the amount used for income tax purposes. Significant components of the Company's deferred tax assets are as follows (in thousands):

                                                     As of December 31,
                                                   --------------------
                                                     2001       2000
                                                   ---------  ---------
Net operating loss carryforward.................. $  25,800  $  20,900
Research credits.................................     4,460      3,400
Expenses deductible in later years for tax purpos    12,120     10,650
Deferred revenue.................................     1,520      1,150
                                                   ---------  ---------
Total deferred tax assets........................    43,900     36,100
Valuation allowance for deferred tax assets......   (43,900)   (36,100)
                                                   ---------  ---------
Net deferred tax assets.......................... $      --  $      --
                                                   =========  =========

Realization of deferred tax assets is dependent upon future earnings; the timing and amount of which are uncertain. Accordingly, the net deferred tax assets have been fully offset by a valuation allowance. The valuation allowance increased by $7.8 million and $7.0 million during the years ended December 31, 2001 and 2000, respectively. As of December 31, 2001, the Company had net operating loss carryforwards for federal tax purposes of approximately $72.0 million which expire in the years 2010 through 2021 and federal research and development tax credits of approximately $2.7 million which expire in the years 2011 through 2021. Utilization of the Company's net operating loss may be subject to a substantial annual limitation due to the ownership change limitations provided by the Internal Revenue Code and similar state provisions. The annual limitation may result in the expiration of the net operating loss before utilization.

11. OTHER FINANCIAL INSTRUMENTS

At December 31, the fair value of the Company's other financial instruments is as follows (in thousands):

                                         2001                  2000
                                      Asset (Liability)     Asset (Liability)
                                     --------------------  --------------------
                                     Carrying     Fair     Carrying     Fair
                                      Amount      Value     Amount      Value
                                     ---------  ---------  ---------  ---------
Forward foreign exchange contracts. $      --  $      --  $      --  $      67

At December 31, outstanding notional amounts for derivative financial instruments are as follows (in thousands):

                                       2001       2000
                                     ---------  ---------
Forward foreign exchange contracts. $      --  $     781

While the contract or notional amounts provide one measure of the volume of these transactions, they do not represent the amount of the Company's exposure to credit risk. The amounts potentially subject to credit risk (arising from the possible inability of counterparties to meet the terms of their contracts) are generally limited to the amounts, if any, by which the counterparties' obligations exceed the obligations of the Company. The Company controls credit risk through credit approvals, limits, and monitoring procedures. See additional information at "Other financial instruments" contained in Note 1.

At December 31, 2001 the Company did not hold any forward exchange contracts.

At December 31, 2000 the Company had forward foreign exchange contracts of approximately 2 months duration, to exchange euro and Belgian Francs for U.S. dollars in the total gross notional amount of $781,000. This notional amount represents forward contracts to sell foreign currency of $781,000.

12. OTHER COMPREHENSIVE INCOME (LOSS)

At December 31, the components of accumulated other comprehensive income, net of related taxes, are comprised of the following (in thousands):

                                                         2001       2000
                                                       ---------  ---------
Unrealized gain  on available-for-sale securities.... $     627  $      67
Unrealized gain on forward exchange contract.........        --         67
Foreign currency translation adjustments.............       (76)        --
                                                       ---------  ---------
Accumulated other comprehensive income .............. $     551  $     134
                                                       =========  =========

13. SELECTED QUARTERLY DATA (UNAUDITED)

                                                  Fiscal 2001
                                   ------------------------------------------
                                      Q1         Q2         Q3         Q4
                                   ---------  ---------  ---------  ---------
                                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
                                   ---------  ---------  ---------  ---------
Net sales........................ $  12,079     12,720     10,861     16,013
Gross profit.....................     5,516      6,061      5,111      6,767
Operating expenses...............    10,066     11,002     10,945     11,825
                                   ---------  ---------  ---------  ---------
Operating loss...................    (4,550)    (4,941)    (5,834)    (5,058)
Other income/(expense)...........     1,143        697      1,036        807
                                   ---------  ---------  ---------  ---------
Net loss.........................    (3,407)    (4,244)    (4,798)    (4,251)
Net loss per share............... $   (0.10) $   (0.12) $   (0.13) $   (0.12)
Shares used in calculation
   of net loss per share.........    35,401     35,655     36,056     36,147


                                                  Fiscal 2000
                                   ------------------------------------------
                                      Q1         Q2         Q3         Q4
                                   ---------  ---------  ---------  ---------
                                    (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
                                   ---------  ---------  ---------  ---------
Net sales........................ $   2,933  $   5,127  $   7,859  $  10,706
Gross profit.....................       401      1,624      3,151      3,417
Operating expenses...............     5,769      6,798      8,567      9,736
                                   ---------  ---------  ---------  ---------
Operating loss...................    (5,368)    (5,174)    (5,416)    (6,319)
Other income/(expense)...........       336        684      1,396      1,337
                                   ---------  ---------  ---------  ---------
Net loss.........................    (5,032)    (4,490)    (4,020)    (4,982)
Net loss per share............... $   (0.90) $   (0.23) $   (0.12) $   (0.14)
Shares used in calculation
   of net loss per share.........     5,574     19,808     34,665     35,139

SCHEDULE II

INTUITIVE SURGICAL, INC.
VALUATION AND QUALIFYING ACCOUNTS
(IN THOUSANDS)

                                      Balance   Additions
                                        at      Charged to             Balance
                                     Beginning  Cost and               at End
                                      of Year   Expenses   Deductions  of Year
                                     ---------  ---------  ---------  ---------
Year ended December 31, 2001
  Deducted from asset accounts:
   Allowance for doubtful
    accounts and product returns... $     192        254        --   $     446

Year ended December 31, 2000
  Deducted from asset accounts:
   Allowance for doubtful
    accounts and product returns... $      55        137        --   $     192

Year ended December 31, 1999
  Deducted from asset accounts:
   Allowance for doubtful
    accounts and product returns... $     --          55        --   $      55

EXHIBIT INDEX

Exhibit Number	Description
3.2(1)	Amended and Restated Certificate of Incorporation of Registrant.(1)
3.3(1)	Bylaws of Registrant.
4.2(1)	Specimen Stock Certificate.
4.3(1)	Warrant to Purchase Shares of Common Stock, dated April 26, 2000.
10.1(1)	Form of Indemnity Agreement.
10.2(1)	2000 Equity Incentive Plan.
10.3(1)	2000 Non-Employee Directors' Stock Option Plan.
10.4(1)	2000 Employee Stock Purchase Plan.
10.5(1)	Amended and Restated Investor Rights Agreement dated March 31, 1999.
10.6(1)	Equipment Financing Agreement (No. 10809), dated April 2, 1997, between the Registrant and Lease Management Services, Inc., and related addendums.
10.7(1)	Security Agreement, dated May 20, 1999, between the Registrant and Heller Financial Leasing, Inc., and related amendments.
10.8(1)	License Agreement, dated December 20, 1995, between the Registrant and SRI International.
10.9(1)	License Agreement, dated December 29, 1997, between the Registrant and International Business Machines Corporation.
10.10(1)	License Agreement, dated April 1, 1999, between the Registrant and Massachusetts Institute of Technology.
10.11(1)	Lease, dated September 9, 1996, between the Registrant and Zappettini Investment Co.
10.12(1)	Lease, dated February 5, 1997, between the Registrant and Zappettini Investment Co.
10.13(1)	Employment Agreement, dated February 28, 1997, between the Registrant and Lonnie M. Smith.
10.14(2)	Lease, dated July 16, 2001, between the Registrant and RNM Technology Drive, L.P.
23.1(2)	Consent of Ernst & Young LLP, Independent Auditors.
24.1(2)	Power of Attorney (set forth on signature page).

___________

(1) Incorporated by reference to exhibits filed with the Registrant's Registration Statement on Form S-1 (333-33016)

(2) Filed herewith