(19)

(11)

EP 0 531 460 A1

(12)

(43) Date of publication: 17.03.1993 Bulletin 1993/11 (21) Application number: 91920987.0 (22) Date of filing: 02.05.1991

(51) International Patent Classification (IPC):  A61F 2/ 30( . ) A61F 2/ 36( . ) A61F 2/ 00( . ) A61F 2/ 46( . ) (86) International application number: PCT/GB1991/000708 (87) International publication number: WO 1991/017723 (28.11.1991 Gazette 1991/27)

(84) Designated Contracting States: BE CH DE ES FR GB IT LI NL (30) Priority: 16.05.1990 GB 19900010980 (71) Applicant: DEPUY INTERNATIONAL LIMITED Beeston, Leeds LS11 8DT (GB)	(72) Inventor: ELLOY, Martin P.O. Box HP171 Leeds LS6 2DP (GB) (74) Representative: Orr, William McLean  URQUHART-DYKES & LORD 8th Floor, Tower House Merrion Way Leeds West Yorkshire, LS2 8PA Leeds West Yorkshire, LS2 8PA (GB)