(19)

(11)

EP 0 871 398 A1

(12)

(43) Date of publication: 21.10.1998 Bulletin 1998/43 (21) Application number: 96940006.0 (22) Date of filing: 28.11.1996

(51) International Patent Classification (IPC):  A61B 5/ 087( . ) A63B 23/ 18( . ) (86) International application number: PCT/GB1996/002932 (87) International publication number: WO 1997/019635 (05.06.1997 Gazette 1997/24)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GR IE IT LI NL PT SE (30) Priority: 28.11.1995 GB 19950024258 (71) Applicant: Medrus Technology Limited Canton, Cardiff CF1 9AH (GB)	(72) Inventor: CHATHAM, Kenneth South Glamorgan CF61 1RH (GB) (74) Representative: Gibson, Stewart Harry  URQUHART-DYKES & LORD, Three Trinity Court, 21-27 Newport Road Cardiff CF2 1AA Cardiff CF2 1AA (GB)