(19)

(11)

EP 0 599 966 A1

(12)

(43) Date of publication: 08.06.1994 Bulletin 1994/23 (21) Application number: 92918195.0 (22) Date of filing: 24.08.1992

(51) International Patent Classification (IPC):  A61N 5/ 06( . ) H01S 3/ 13( . ) A61B 17/ 00( . ) H01S 3/ 10( . ) H01S 5/ 068( . ) A61N 5/ 067( . ) (86) International application number: PCT/AU1992/000449 (87) International publication number: WO 1993/003793 (04.03.1993 Gazette 1993/06)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE (30) Priority: 22.08.1991 AU 19910007887 27.05.1992 AU 19920002647 (71) Applicant: DI BIAGGIO, Roberto Enzo Victoria Park, W.A. 6100 (AU)	(72) Inventor: DI BIAGGIO, Roberto Enzo Victoria Park, W.A. 6100 (AU) (74) Representative: Cardwell, Stuart Martin, et al  Roystons Tower Building Water Street Liverpool, Merseyside L3 1BA Liverpool, Merseyside L3 1BA (GB)