(19)

(11)

EP 0 293 421 A1

(12)

(43) Date of publication: 07.12.1988 Bulletin 1988/49 (21) Application number: 87907894.0 (22) Date of filing: 12.11.1987

(51) International Patent Classification (IPC):  A61M 1/ 00( . ) A61M 1/ 12( . ) A61M 1/ 10( . ) (86) International application number: PCT/US1987/002945 (87) International publication number: WO 1988/003394 (19.05.1988 Gazette 1988/11)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 14.11.1986 US 19860931340 (71) Applicant: Novacor Medical Corporation Oakland, CA 94621 (US)	(72) Inventors: MILLER, Phillip, Jay Berkeley, CA 94708 (US) JASSAWALLA, Jal, Sohrab San Francisco, CA 94109 (US) CONLEY, Michael, J. El Cerrito, CA 94530 (US) (74) Representative: Bayliss, Geoffrey Cyril, et al  BOULT, WADE & TENNANT 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)