SC 13D/A

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 1)*

EchoCath, Inc.(Name of Issuer)

Class A Common Stock, no par value(Title of Class of Securities)

278700 10 3(CUSIP Number)

Carol E. Malkinson, Esq.
Medtronic, Inc.
710 Medtronic Parkway Northeast
Minneapolis, Minnesota 55432
(612) 514-4000(Name, Address and Telephone Number of Person Authorized
to Receive Notices and Communications)

December 31, 2001(Date of Event which Requires Filing of this Statement)

    If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box.  / /

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 13d-7(b) for other parties to whom copies are to be sent.

    *The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

    The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Page 1 of 8 Pages

SCHEDULE 13D

CUSIP No.  278700 10 3 Page 2 of 8 Pages

1	NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Medtronic, Inc. 41-0793183
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)*		(a)  / / (b)  / /
	*Joint Filing
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	Not Applicable
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  / /
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	Minnesota
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			363,636
		8	SHARED VOTING POWER
			0
		9	SOLE DISPOSITIVE POWER
			363,636
		10	SHARED DISPOSITIVE POWER
			0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	363,636
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)  / /
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	3.6%
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	CO

SCHEDULE 13D

CUSIP No.  278700 10 3 Page 3 of 8 Pages

1	NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
	Medtronic International, Ltd. 41-1278948
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)*		(a)  / / (b)  / /
	*Joint Filing
3	SEC USE ONLY
4	SOURCE OF FUNDS (SEE INSTRUCTIONS)
	Not Applicable
5	CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)  / /
6	CITIZENSHIP OR PLACE OF ORGANIZATION
	Delaware
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH		7	SOLE VOTING POWER
			363,636
		8	SHARED VOTING POWER
			0
		9	SOLE DISPOSITIVE POWER
			363,636
		10	SHARED DISPOSITIVE POWER
			0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	363,636
12	CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)/ /
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
	3.6%
14	TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
	CO

    The purpose of this Amendment is to substitute Medtronic International, Ltd. for Medtronic Asset Management, Inc. as a Reporting Person as a result of the merger, effective December 31, 2001, of Medtronic Asset Management, Inc. with and into Medtronic International, Ltd.

Item 1.  Security and Issuer

    The class of equity security to which this statement relates is the Class A Common Stock, no par value per share, of EchoCath, Inc. The name and address of the principal executive offices of the issuer of such securities are EchoCath, Inc., P. O. Box 7224, Princeton, New Jersey 0854307224.

Item 2.  Identity and Background

    (a), (b) and (c):

    Medtronic, Inc. ("Medtronic"), 710 Medtronic Parkway N.E., Minneapolis, Minnesota 55432, is a Minnesota corporation, principally engaged in the business of therapeutic medical technology, specializing in implantable and interventional therapies. Medtronic International, Ltd., 710 Medtronic Parkway N.E., Minneapolis, Minnesota 55432, a Delaware corporation ("MIL"), is a wholly-owned subsidiary of Medtronic through which Medtronic holds certain investments. Information is provided below with respect to persons who are directors and executive officers of the Reporting Persons.

    William W. George, Chairman and Director, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Arthur D. Collins, Jr., President, Chief Executive Officer and Director, Medtronic. and President, MIL, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Glen D. Nelson, M.D., Vice Chairman and Director, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Michael R. Bonsignore, Director, Medtronic, Retired Chairman, Honeywell International, Inc., 101 Columbia Road, P. O. Box 4000, Morristown, New Jersey 07962-2497;

    William R. Brody, M.D., Ph.D., Director, Medtronic, President, The Johns Hopkins University, 3400 North St. Charles St., 242 Garland Hall, Baltimore, MD 21218;

    Paul W. Chellgren, Director, Medtronic, Chairman and Chief Executive Officer, Ashland Inc., 50 E. RiverCenter Boulevard, P.O. Box 391, Covington, KY 41012-0391;

    Antonio M. Gotto, Jr., M.D., Director, Medtronic, Dean, Cornell University Medical College, Medical Affairs Provost, Cornell University, Office of the Dean, 1300 York Avenue, New York, NY 10021;

    Bernadine P. Healy, M.D., Director, Medtronic, Retired President and CEO, American Red Cross, 710 County Line Road, Gates Mills, OH 44040;

    Jean-Pierre Rosso, Director, Medtronic, Chairman, CNH Global N.V., 700 State Street, Racine, WI 53404;

    Jack W. Schuler, Director, Medtronic, Chairman, Stericycle, Inc. and Ventana Medical Systems, Inc., 28161 North Keith Drive, Lake Forest, IL 60045;

    Gordon M. Sprenger, Director, Medtronic, Retired from Allina Health System, 2800 Chicago Avenue S., Minneapolis, MN 55407;

    Jeffrey Balagna, Senior Vice President and Chief Information Officer, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, Minnesota 55432;

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    Chuck Brynelsen, Vice President, MIL, 710 Medtronic Parkway N.E., Minneapolis, Minnesota 55432;

    Gary L. Ellis, Vice President, Controller, Treasurer and Director, MIL, 710 Medtronic Parkway N.E., Minneapolis, MN 55432.

    Michael D. Ellwein, Vice President, MIL, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Janet S. Fiola, Senior Vice President, Human Resources, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Robert Guezuraga, Senior Vice President and President, Cardiac Surgery, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Steven B. Kelmar, Senior Vice President, External Affairs, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Stephen H. Mahle, Senior Vice President and President, Cardiac Rhythm Management, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Margaret A. Osborne, Vice President, MIL, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Robert L. Ryan, Senior Vice President and Chief Financial Officer, Medtronic, and Vice President, Chief Financial Officer and Director, MIL, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    David J. Scott, Senior Vice President and General Counsel and Secretary, Medtronic, and Vice President, Secretary and Director, MIL, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Keith E. Williams, Senior Vice President and President, Neurological, Spinal, and ENT, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    Barry W. Wilson, Senior Vice President and President, International, Medtronic, 710 Medtronic Parkway N.E., Minneapolis, MN 55432;

    (d), (e) and (f):  No change.

Item 3.  Source and Amount of Funds or Other Consideration

    No change

Item 4.  Purpose of Transaction

    Effective December 31, 2001, Medtronic Asset Management, Inc., a former Reporting Person, was merged with and into Medtronic International, Ltd. ("MIL"). As a result of such merger, Medtronic International, Ltd. is substituted as a Reporting Person. None of the Reporting Persons has any current plans or proposals which may relate to or would result in transactions of the kind described in paragraphs (a) through (j) of Item 4 of Schedule 13D.

Item 5.  Interest in Securities of the Issuer

    (a) Medtronic, through MIL, is the beneficial owner of 363,636 shares of Class A Common Stock of EchoCath, Inc., which represents approximately 3.6% of the outstanding Class A Common Stock of EchoCath, Inc. To the knowledge of the Reporting Persons, no other person named in Item 2 beneficially owns any shares of EchoCath, Inc.

    (b) Medtronic, through MIL, has the sole power to vote and the sole power to dispose of all shares of EchoCath, Inc. Class A Common Stock beneficially owned by it.

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    (c) The only transaction in the Class A Common Stock of EchoCath, Inc. that was effected by any person named in paragraph (a) above during the past 60 days was the acquisition by MIL, as the surviving corporation in its merger with Medtronic Asset Management, Inc., of the EchoCath, Inc. Class A Common Stock previously owned by Medtronic Asset Management, Inc.

    (d) No other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds of the sale of, the subject securities.

    (e) As a result of an increase in the number of shares of EchoCath, Inc. Class A Common Stock outstanding, the Reporting Persons have ceased to be the beneficial owners of more than 5% of the outstanding shares of Class A Common Stock of EchoCath, Inc.

Item 6.  Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer

    No change

Item 7.  Material to be Filed as Exhibits

    Exhibit A — Agreement by the persons filing this Schedule 13D Amendment to make a joint filing.

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SIGNATURE

    After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Dated:	January 7, 2002	MEDTRONIC, INC.
		By:	/s/ DAVID J. SCOTT David J. Scott Senior Vice President and General Counsel
		MEDTRONIC INTERNATIONAL, LTD.
		By:	/s/ DAVID J. SCOTT David J. Scott Vice President and Secretary

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EXHIBIT INDEX

Exhibit	Description
A	Agreement by the persons filing this Schedule 13D Amendment to make a joint filing.

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SCHEDULE 13D
SCHEDULE 13D

Item 1. Security and Issuer
Item 2. Identity and Background
Item 3. Source and Amount of Funds or Other Consideration
Item 5. Interest in Securities of the Issuer
Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer
Item 7. Material to be Filed as Exhibits

SIGNATURE
EXHIBIT INDEX

EX-99.(A)

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Exhibit A

    The undersigned hereby agree to file a joint Schedule 13D with respect to the interests of the undersigned in EchoCath, Inc., and that the Schedule 13D Amendment to which this Exhibit A is attached has been filed on behalf of each of the undersigned.

Dated:	January 7, 2002.	MEDTRONIC, INC.
		By:	/s/ DAVID J. SCOTT David J. Scott Senior Vice President and General Counsel
		MEDTRONIC INTERNATIONAL, LTD.
		By:	/s/ DAVID J. SCOTT David J. Scott Vice President and Secretary

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Exhibit A