(19)

(11)

EP 0 056 028 A1

(12)

(43) Date of publication: 21.07.1982 Bulletin 1982/29 (21) Application number: 81901344.0 (22) Date of filing: 21.07.1980

(51) International Patent Classification (IPC):  A61M 16/ 06( . ) A61M 16/ 04( . ) (86) International application number: PCT/US1980/000946 (87) International publication number: WO 1982/000254 (04.02.1982 Gazette 1982/04)

(84) Designated Contracting States: AT CH DE FR LI LU NL SE (71) Applicants: ROLLINS, Offord L. Los Angeles, CA 90008 (US) WILLIAMS, Anthony F. Los Angeles, CA 90008 (US)	(72) Inventors: ROLLINS, Offord L. Los Angeles, CA 90008 (US) WILLIAMS, Anthony F. Los Angeles, CA 90008 (US)