Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. §1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of ABIOMED, Inc. (the “Company”) for the year ended March 31, 2007, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned President and Chief Executive Officer and Chief Financial Officer of the Company, certifies, to the best knowledge and belief of the signatory, pursuant to Section 1350 of Chapter 63 of title 18 of the United States Code (18 U.S.C. 1350), as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/S/    MICHAEL R. MINOGUE	/S/    DANIEL J.SUTHERBY
Michael R. Minogue	Daniel J. Sutherby
President and Chief Executive Officer	Chief Financial Officer
Date: June 13, 2007	Date: June 13, 2007