(19)

(11)

EP 0 493 573 A1

(12)

(43) Date of publication: 08.07.1992 Bulletin 1992/28 (21) Application number: 91913419.0 (22) Date of filing: 15.07.1991

(51) International Patent Classification (IPC):  A61B 17/ 22( . ) A61F 9/ 007( . ) A61F 9/ 00( . ) A61M 1/ 00( . ) (86) International application number: PCT/US1991/004959 (87) International publication number: WO 1992/001423 (06.02.1992 Gazette 1992/04)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 17.07.1990 US 19900553975 04.04.1991 US 19910680292 (71) Applicant: Anis, Aziz Yehia Lincoln Nebraska 68520 (US)	(72) Inventor: Anis, Aziz Yehia Lincoln Nebraska 68520 (US) (74) Representative: UEXKÜLL & STOLBERG  Patentanwälte Beselerstrasse 4 D-22607 Hamburg D-22607 Hamburg (DE)