SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 11, 2001 BIO-VASCULAR, INC. (Exact name of registrant as specified in its charter) Minnesota 0-13907 41-1526554 - ---------------------------- ------------ ------------------- (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.) 2575 University Avenue St. Paul, Minnesota 55114 --------------------------- -------------------- (Address of principal executive offices) (Zip Code) Registrant's telephone number, including area code (651)603-3700 ------------- Item 4. Changes in Registrant's Certifying Accountants. On May 10, 2001, Bio-Vascular, Inc. (the "Company") appointed Deloitte and Touche LLP as its independent auditors for the fiscal year ending October 31, 2001. Such engagement was approved by the Company's Audit Committee of the Board of Directors. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. Dated: May 11, 2001 BIO-VASCULAR, INC. By: /s/ Connie L. Magnuson ----------------------------- Connie L. Magnuson Vice President of Finance and Chief Financial Officer 2