(19)

(11)

EP 0 091 960 A1

(12)

(43) Date of publication: 26.10.1983 Bulletin 1983/43 (21) Application number: 82903621.0 (22) Date of filing: 26.10.1982

(51) International Patent Classification (IPC):  A61M 27/ 00( . ) (86) International application number: PCT/US1982/001535 (87) International publication number: WO 1983/001387 (28.04.1983 Gazette 1983/10)

(84) Designated Contracting States: DE FR GB (30) Priority: 26.10.1981 US 19810314684 (71) Applicants: Leveen, Harry H. Charleston, SC 29407 (US) LeVeen, Robert F. Philadelphia Pennsylvania 19147 (US) LEVEEN, Eric G Mamaroneck, NY 10543 (US)	(72) Inventors: Leveen, Harry H. Charleston, SC 29407 (US) LeVeen, Robert F. Philadelphia Pennsylvania 19147 (US) LEVEEN, Eric G Mamaroneck, NY 10543 (US) (74) Representative: Carpmael, John William Maurice  CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA London, WC1A 2RA (GB)