8-K

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

                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

                        Date of Report: December 12, 2007
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                        (Date of earliest event reported)

                                  ABIOMED, Inc.
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             (Exact name of registrant as specified in its charter)

           Delaware                                   04-2743260
(State or other Jurisdiction                (IRS Employer Identification Number)
      of Incorporation)

                                     0-20584
                            (Commission File Number)

                              22 Cherry Hill Drive
                                Danvers, MA 01923
          (Address of Principal Executive Offices, including Zip Code)

                                 (978) 646-1400
              (Registrant's Telephone Number, including Area Code)

                                 Not Applicable

          (Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

|_|  Written communications pursuant to Rule 425 under the Securities Act (17
     CFR 230.425)

|_|  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
     240.14a-12)

|_|  Pre-commencement communications pursuant to Rule 14d-2(b) under the
     Exchange Act (17 CFR 240.14d-2(b))

|_|  Pre-commencement communications pursuant to Rule 13e-4(c) under the
     Exchange Act (17 CFR 240.13e-4(c)

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Item 7.01   Regulation FD Disclosure.

On December 12, 2007, we issued a press release announcing a strategic
investment in WorldHeart Corporation. A copy of the press release is set forth
as Exhibit 99.1 and is incorporated herein by reference. The information
contained in this report shall not be deemed "filed" for purposes of Section 18
of the Securities Exchange Act of 1934 or otherwise subject to the liabilities
of that Section, nor shall it be deemed incorporated by reference in any filing
under the Securities Act of 1933 or the Securities Act of 1934, whether made
before or after the date hereof and regardless of any general incorporation
language in such filing, except as expressly set forth by specific reference in
such filing.

Item 9.01  Financial Statements and Exhibits.

(d)       Exhibits.
Exhibit                                     Description
- -------  -----------------------------------------------------------------------
99.1     Press release dated December 12, 2007.






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                                   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.


                                                 Abiomed, Inc.

                                               By: /s/   Daniel J. Sutherby
                                                         ------------------
                                                         Daniel J. Sutherby
                                                         Chief Financial Officer

Date:  December 12, 2007




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                                  Exhibit Index


Exhibit Number        Description
- --------------        ----------------------------------------------------------

   99.1               Press release dated December 12, 2007.

EX-99.1

                                                                    Exhibit 99.1

                      Abiomed Announces Strategic
                 Investment in WorldHeart Corporation


    DANVERS, Mass.--(BUSINESS WIRE)--December 12, 2007--Abiomed, Inc.
(NASDAQ: ABMD), a leading provider of medical devices that provide
circulatory support to acute heart failure patients today announced a
strategic investment in WorldHeart Corporation (NASDAQ: WHRT, TSX:
WHT), a developer of implantable mechanical circulatory support
systems for chronic heart failure patients. Under the terms of the
transaction, Abiomed has agreed to loan $5 million in convertible
secured debt to WorldHeart, with a term of two years and bearing
interest at 8% per annum. The loan is convertible, at Abiomed's
option, into common shares of WorldHeart at a conversion price of
approximately $1.75 per share, resulting in an approximately 19.9%
ownership interest in WorldHeart upon conversion. The loan is secured
by all of the assets of WorldHeart, including its intellectual
property. Abiomed ended its most recent fiscal quarter with $59.5
million in cash and no debt.

    "We are excited about the opportunity to work with WorldHeart.
They are well respected in the field of circulatory support and have
an extensive network of loyal heart surgeons," commented Michael R.
Minogue, Chairman, President and Chief Executive Officer of Abiomed.
"Based on the analysis of our top scientists, and our due diligence
with leading customers, we believe that the Levacor(TM) mag-lev rotary
pump represents the best solution for long-term support applications,
including bridge to transplant and destination therapy. Abiomed
remains committed and focused on heart recovery for acute patients,
especially with Impella in the cath lab. However, we also recognize
the unmet clinical need for patients suffering from chronic heart
failure that can benefit from a long-term implantable LVAD."

    Additionally, the two companies have entered into a two-year
marketing and clinical support services agreement through which they
will seek opportunities to leverage existing expertise and resources
at Abiomed and potentially provide cost savings for WorldHeart. In
consideration for these support services, Abiomed will be issued a
warrant for the purchase of up to 3,400,000 common shares of
WorldHeart. Abiomed has also been granted a right of first refusal to
distribute WorldHeart's products, other than the Novacor LVAS product
that is currently being sold by WorldHeart. Abiomed has the largest
sales and clinical team in the ventricular assist device field,
calling on the catheterization labs, intensive care units and heart
surgery suites. In addition, Abiomed has been granted the right to
designate one nominee or observer to the WorldHeart board of
directors.

    WorldHeart is currently developing the Levacor Rotary Ventricular
Assist Device (VAD), which is designed to provide support for chronic
heart failure patients. The Levacor is a bearingless, fully
magnetically levitated implantable centrifugal rotary pump that
suspends the spinning rotor, minimizing wear within the pump and
allowing greater clearances around the rotor with more uniform flow
patterns. The Levacor has not been approved by the FDA for sale in the
United States.

    "We believe that the Levacor magnetically levitated implantable
rotary pump will provide features and performance that will leapfrog
all existing rotary pumps. Its design inherently has a low risk for
stroke complications, even at low flows," stated Dr. Bob Kung, Chief
Scientist of Abiomed.

    Abiomed and WorldHeart intend to explore technical synergies
between the two companies, such as the potential to use Abiomed's
information and transcutaneous energy transfer (iTET) system with
WorldHeart's Levacor product. Abiomed's patented iTET system consists
of internal and external coils that are used to transmit power and
information across the skin. Because tubes or wires do not pierce the
skin, like other implantable LVADs, the chances of developing an
infection are significantly decreased and patients have the freedom to
shower and bathe without the need for protective dressing. Abiomed has
9 patents and greater than $40 million invested in the iTET platform.
Abiomed has patient experience with the iTET from its AbioCor
artificial heart study with home and hospital remote diagnostics, and
long-term engineering reliability data.

    "We are excited about the opportunities presented by this
strategic alliance," said Jal S. Jassawalla, President and Chief
Executive Officer of WorldHeart. "This alliance creates a winning
strategy by bringing together complementary technologies and broad
device portfolios. Abiomed's intellectual property portfolio includes
numerous patents in the implantable pump field, and we are honored
they have chosen the Levacor as the long-term implantable device of
choice."

    Under the terms of the agreement, Abiomed has advanced $1,000,000
of the loan in December 2007, with the additional $4,000,000 expected
to be advanced in January 2008. If Abiomed chooses to convert the loan
and exercise the warrant for 3,400,000 shares, at $.01 per share,
subject to adjustments for certain dilutive issuances, this would
total approximately 6.26 million common shares of WorldHeart. Based on
this conversion and approximately 11.51 million shares of WorldHeart
currently outstanding, Abiomed would have approximately 35% ownership
interest in WorldHeart. Abiomed's ability to exercise the warrant and
convert the loan is currently limited to a maximum of approximately
2.29 million shares under the applicable rules of the NASDAQ Stock
Market until the transaction has been approved by WorldHeart's
shareholders. Abiomed does not currently intend to acquire ownership
or control of additional securities of WorldHeart, other than as
described above.

    CONFERENCE CALL AND WEBCAST INFORMATION

    WorldHeart will host a conference call to discuss the investment
on Wednesday, December 12, 2007, at 10:00 a.m. ET. Jal S. Jassawalla,
President and Chief Executive Officer of WorldHeart Corporation, will
host the conference call and Michael R. Minogue, Chairman, President
and Chief Executive Officer of Abiomed, Inc. will participate.

    The conference call may be accessed by dialing 866-356-4441 (if
dialing from within the U.S.) or 617-597-5396 (if dialing from outside
the U.S.). The passcode is 37457013. A replay of the conference call
will be available 2 hours after the completion of the conference call
for a period of 7 days by dialing 888-286-8010 (if dialing from within
the U.S.) or 617-801-6888 (if dialing outside the U.S.). The replay
conference ID access code is 23506939.

    ABOUT ABIOMED

    Abiomed, Inc. is a leading provider of medical devices that
provide circulatory support to acute heart failure patients across the
continuum of care in heart recovery. Abiomed's products are designed
to enable the heart to rest, heal and recover by improving blood flow
and/or performing the pumping of the heart. Abiomed's headquarters are
located at 22 Cherry Hill Drive, Danvers, Massachusetts, 01923. For
additional information, please visit www.abiomed.com.

    ABOUT WORLDHEART

    WorldHeart is a developer of long-term mechanical circulatory
support systems with broad-based next-generation technologies.
WorldHeart is headquartered in Oakland, California, USA with
additional facilities in Salt Lake City, Utah and Herkenbosch,
Netherlands. WorldHeart's registered office is Ottawa, Ontario,
Canada.

    FORWARD-LOOKING STATEMENTS

    This Release contains forward-looking statements, including
statements regarding development of Abiomed's existing and new
products, the Company's progress toward commercial growth, and future
opportunities. The Company's actual results may differ materially from
those anticipated in these forward-looking statements based upon a
number of factors, including the results of the Company's pivotal
study, uncertainties associated with development, testing and related
regulatory approvals, anticipated future losses, complex
manufacturing, high quality requirements, dependence on limited
sources of supply, competition, technological change, government
regulation, future capital needs and uncertainty of additional
financing, and other risks and challenges detailed in the Company's
filings with the Securities and Exchange Commission, including the
risk factors contained in the Company's Annual Report filed on Form
10-K and its recently filed quarterly report on Form 10-Q. Readers are
cautioned not to place undue reliance on any forward-looking
statements, which speak only as of the date of this Release. The
Company undertakes no obligation to publicly release the results of
any revisions to these forward-looking statements that may be made to
reflect events or circumstances that occur after the date of this
Release or to reflect the occurrence of unanticipated events.


    CONTACT: Abiomed, Inc.
             Daniel J. Sutherby, 978-777-5410
             Chief Financial Officer
             ir@abiomed.com
             or
             For Abiomed, Inc.
             Brodeur
             Heather Nevers, 617-587-2814
             Media Relations
             hnevers@brodeur.com