(19)

(11)

EP 0 758 870 A1

(12)

(43) Date of publication: 26.02.1997 Bulletin 1997/09 (21) Application number: 95913307.0 (22) Date of filing: 10.04.1995

(51) International Patent Classification (IPC):  A61L 31/ 00( . ) A61F 2/ 86( . ) A61L 31/ 02( . ) A61L 31/ 18( . ) A61F 2/ 06( . ) A61F 2/ 90( . ) A61L 31/ 08( . ) (86) International application number: PCT/IB1995/000253 (87) International publication number: WO 1995/030384 (16.11.1995 Gazette 1995/49)

(84) Designated Contracting States: CH DE FR GB IT LI (30) Priority: 09.05.1994 US 19940239595 (71) Applicant: SCHNEIDER (USA) INC. Plymouth, MN 55442 (US)	(72) Inventor: MAYER, David, W. Bloomington, MN 55437 (US) (74) Representative: Ruddock, Keith Stephen  Pfizer Limited, European Patent Department, Ramsgate Road Sandwich, Kent CT13 9NJ Sandwich, Kent CT13 9NJ (GB)