(19)

(11)

EP 0 221 961 A1

(12)

(43) Date of publication: 20.05.1987 Bulletin 1987/21 (21) Application number: 86903145.0 (22) Date of filing: 23.05.1986

(51) International Patent Classification (IPC):  A61B 17/ 435( . ) A61D 19/ 04( . ) (86) International application number: PCT/AU1986/000147 (87) International publication number: WO 1986/006968 (04.12.1986 Gazette 1986/26)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 24.05.1985 AU 19850000727 (71) Applicant: YOVICH, John Lui Leederville, W.A. 6007 (AU)	(72) Inventor: YOVICH, John Lui Leederville, W.A. 6007 (AU)