(19)

(11)

EP 0 900 104 A1

(12)

(43) Date of publication: 10.03.1999 Bulletin 1999/10 (21) Application number: 96913291.0 (22) Date of filing: 01.05.1996

(51) International Patent Classification (IPC):  A61M 37/ 00( . ) A61M 5/ 168( . ) A61M 5/ 152( . ) (86) International application number: PCT/US1996/006047 (87) International publication number: WO 1996/034651 (07.11.1996 Gazette 1996/49)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI NL SE (30) Priority: 01.05.1995 US 19950430221 (71) Applicant: SCIENCE INCORPORATED Bloomington, MN 55437 (US)	(72) Inventors: KRIESEL, Marshall, S. St. Paul, MN 55104 (US) ARNOLD, Steven, M. Minnetonka, MN 55391 (US) GARRISON, James Minneapolis, MN 55426 (US) KAZEMZADEH, Farhad Bloomington, MN 55431 (US) (74) Representative: Portal, Gérard  Cabinet Beau de Loménie 158, rue de l'Université 75340 Paris Cédex 07 75340 Paris Cédex 07 (FR)