EXHIBIT 32.2

                            CERTIFICATION PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection with the Quarterly Report of St. Jude Medical, Inc., (the
"Company") on Form 10-Q for the period ended June 30, 2003 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, John C.
Heinmiller, Chief Financial Officer of the Company, certify, pursuant to 18
U.S.C. ss.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/ JOHN C. HEINMILLER
                                 ----------------------
                                 John C. Heinmiller
                                 Vice President - Finance and
                                 Chief Financial Officer
                                 August 11, 2003