(19)

(11)

EP 0 518 940 A1

(12)

(43) Date of publication: 23.12.1992 Bulletin 1992/52 (21) Application number: 91905598.0 (22) Date of filing: 25.02.1991

(51) International Patent Classification (IPC):  A61M 25/ 00( . ) B82B 1/ 00( . ) A61F 2/ 958( . ) A61M 29/ 02( . ) (86) International application number: PCT/US1991/001242 (87) International publication number: WO 1991/012846 (05.09.1991 Gazette 1991/21)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 26.02.1990 US 19900485287 (71) Applicant: SLEPIAN, Marvin J. Tucson, Arizona 85718 (US)	(72) Inventor: SLEPIAN, Marvin J. Tucson, Arizona 85718 (US) (74) Representative: Leboyer, Jean-Jacques  Cabinet Leboyer 12 rue du Helder F-75009 Paris F-75009 Paris (FR)