Exhibit 23.1 CONSENT OF PRICEWATERHOUSECOOPERS LLP ------------------------------------- We hereby consent to the incorporation by reference in these Registration Statements on Form S-8 (Registration Nos. 333-80259; 33-85394; 33-22302; 33- 94588; 333-14093; 333-14137; and 333-26783) of our report dated December 1, 2000 relating to the consolidated financial statements which appears in the 2000 Annual Report to Shareholders of Bio-Vascular, Inc., which is incorporated by reference in Bio-Vascular, Inc.'s Annual Report on Form 10-K for the year ended October 31, 2000. We also consent to the incorporation by reference of our report dated December 1, 2000 relating to the financial statement schedule, which appears in such Annual Report on Form 10-K. We also consent to the references to us under the captions "Experts," "Incorporation of Documents by Reference" and "Incorporation of Certain Documents by Reference" in such Registration Statements. PRICEWATERHOUSECOOPERS LLP Minneapolis, Minnesota January 29, 2001