Exhibit 10.1 Extension of Co-Marketing Agreement Dated as of December 31, 1999 Pursuant to section 5.1 of the Co-marketing Agreement between Boston Scientific Corporation and Urologix dated August 9, 1999 (the "Agreement"), the term of the Agreement...

Exhibit 10.1

                       Extension of Co-Marketing Agreement
                          Dated as of December 31, 1999

Pursuant to section 5.1 of the Co-marketing Agreement between Boston Scientific
Corporation and Urologix dated August 9, 1999 (the "Agreement"), the term of the
Agreement is hereby extended to March 31, 2000. All other terms and provision of
the Agreement shall remain unchanged.


Urologix

By  /S/ ▇▇▇▇▇ ▇▇▇▇▇
Vice President of Finance

Boston Scientific Corporation

By  /S/ ▇▇▇▇ ▇▇▇▇▇▇
President BSC Microvasive Urology