(19)

(11)

EP 0 022 776 A1

(12)

(43) Date of publication: 28.01.1981 Bulletin 1981/04 (21) Application number: 79901050.0 (22) Date of filing: 12.01.1979

(51) International Patent Classification (IPC):  A61M 5/ 145( . ) A61M 5/ 20( . ) A61M 5/ 142( . ) (86) International application number: PCT/US1979/000013 (87) International publication number: WO 1980/001459 (24.07.1980 Gazette 1980/17)

(84) Designated Contracting States: FR (71) Applicants: WHITNEY, Douglass Glenn Atlanta, GA 30327 (US) MARTIN, John Kell, III Atlanta, GA 30327 (US)	(72) Inventors: WHITNEY, Douglass Glenn Atlanta, GA 30327 (US) MARTIN, John Kell, III Atlanta, GA 30327 (US) (74) Representative: Wilson, Nicholas Martin, et al  WITHERS & ROGERS 4 Dyer's Buildings Holborn London EC1N 2JT London EC1N 2JT (GB)