(19)

(11)

EP 0 721 356 A1

(12)

(43) Date of publication: 17.07.1996 Bulletin 1996/29 (21) Application number: 93916791.0 (22) Date of filing: 28.06.1993

(51) International Patent Classification (IPC):  A61M 39/ 02( . ) A61M 39/ 26( . ) (86) International application number: PCT/US1993/006112 (87) International publication number: WO 1995/000188 (05.01.1995 Gazette 1995/02)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Maximwell International Co. (U.S.A.) Ltd. Flushing, NY 11355 (US)	(72) Inventor: HANSON, Earl Taoyuan Taiwan (CN) (74) Representative: Hamilton, Alistair, et al  Mewburn Ellis, York House, 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)