(19)

(11)

EP 0 868 209 A1

(12)

(43) Date of publication: 07.10.1998 Bulletin 1998/41 (21) Application number: 96941128.0 (22) Date of filing: 05.12.1996

(51) International Patent Classification (IPC):  A61F 2/ 46( . ) B01F 13/ 00( . ) B01F 7/ 00( . ) B01F 15/ 00( . ) B01F 11/ 00( . ) B01F 3/ 12( . ) B01F 13/ 06( . ) B01F 15/ 02( . ) (86) International application number: PCT/GB1996/002997 (87) International publication number: WO 1997/021485 (19.06.1997 Gazette 1997/26)

(84) Designated Contracting States: DE FR GB SE (30) Priority: 09.12.1995 GB 19950025209 (71) Applicant: DEPUY INTERNATIONAL LIMITED Beeston, Leeds LS11 8DT (GB)	(72) Inventors: WATKINS, Neil David Nr. Preston, Lancs. PR4 5DQ (GB) NAYBOUR, John Robert Preston PR1 9XW (GB) (74) Representative: Belcher, Simon James  Urquhart-Dykes & Lord Tower House Merrion Way Leeds LS2 8PA Leeds LS2 8PA (GB)