(19)

(11)

EP 0 022 846 A1

(12)

(43) Date of publication: 28.01.1981 Bulletin 1981/04 (21) Application number: 80900323.0 (22) Date of filing: 18.01.1980

(51) International Patent Classification (IPC):  A61M 5/ 158( . ) A61M 25/ 02( . ) (86) International application number: PCT/US1980/000109 (87) International publication number: WO 1980/001458 (24.07.1980 Gazette 1980/17)

(84) Designated Contracting States: AT CH DE FR GB LU NL SE (30) Priority: 19.01.1979 US 19790005032 08.06.1979 US 19790046803 (71) Applicant: WHITMAN MEDICAL CORP. Clark, NJ 07066 (US)	(72) Inventor: GORDON, Marvin East Windsor. NJ 08250 (US) (74) Representative: Godwin, Edgar James  MARKS & CLERK, 57-60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)