(19)

(11)

EP 0 181 867 A1

(12)

(43) Date of publication: 28.05.1986 Bulletin 1986/22 (21) Application number: 84903253.0 (22) Date of filing: 17.08.1984

(51) International Patent Classification (IPC):  A61M 16/ 08( . ) (86) International application number: PCT/US1984/001323 (87) International publication number: WO 1985/005277 (05.12.1985 Gazette 1985/26)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 18.05.1984 US 19840611632 (71) Applicants: CLAWSON, Burrell E. Riverside, CA 92507 (US) WEIGL, James Riverside, CA 92503 (US)	(72) Inventors: CLAWSON, Burrell E. Riverside, CA 92507 (US) WEIGL, James Riverside, CA 92503 (US)