(19)

(11)

EP 0 722 346 A1

(12)

(43) Date of publication: 24.07.1996 Bulletin 1996/30 (21) Application number: 94926290.0 (22) Date of filing: 09.09.1994

(51) International Patent Classification (IPC):  A61L 24/ 00( . ) A61L 24/ 06( . ) (86) International application number: PCT/GB1994/001970 (87) International publication number: WO 1995/007107 (16.03.1995 Gazette 1995/12)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 10.09.1993 GB 19930018827 10.09.1993 GB 19930018826 (71) Applicant: SMITH & NEPHEW P.L.C. London WC2R 3BP (GB)	(72) Inventor: MILNER, Richard Barlow Selby YO8 8EP (GB) (74) Representative: Gilholm, Stephen Philip  Corporate Patents Department Smith & Nephew Group Research Centre York Science Park Heslington York YO1 5DF Heslington York YO1 5DF (GB)