(19)

(11)

EP 0 928 158 A1

(12)

(43) Date of publication: 14.07.1999 Bulletin 1999/28 (21) Application number: 97935249.0 (22) Date of filing: 01.08.1997

(51) International Patent Classification (IPC):  A61B 8/ 00( . ) A61B 8/ 06( . ) (86) International application number: PCT/US1997/013537 (87) International publication number: WO 1998/006333 (19.02.1998 Gazette 1998/07)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE (30) Priority: 09.08.1996 US 19960023959P 21.03.1997 US 19970041361P (71) Applicant: Urometrics, Inc. St. Paul, MN 55106 (US)	(72) Inventors: HOVLAND, Claire T. St. Paul, MN 55106 (US) ABRAMS, Jerome H. St. Paul, MN 55106 (US) WONS, Edward J. St. Paul, MN 55106 (US) (74) Representative: Kinsler, Maureen Catherine, et al  Kilburn & Strode, 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)