EXHIBIT 23.1



     CONSENT OF INDEPENDENT ACCOUNTANTS


    
     We consent to the inclusion and incorporation by reference in this
     registration statement on Form S-3 (File No. 33-62199) of our report dated
     December 16, 1994, except for the last paragraph of Note 6, as to which the
     date is January 2, 1995, on our audits of the consolidated financial
     statements of Bio-Vascular, Inc. as of October 31, 1993 and 1994, and for
     the years then ended and on our audit of the financial statements of Vital
     Images, Incorporated for the year ended December 31, 1992 and the
     combination of such financial statements with those of Bio-Vascular, Inc.
     for the year ended October 31, 1992, after restatement for the 1994 
     pooling-of-interest. We also consent to the reference to our Firm under the
     captions "Selected Consolidated Financial Data" and "Experts."    


                                             COOPERS & LYBRAND L.L.P.

    

     Minneapolis, Minnesota
    
     September 20, 1995