(19)

(11)

EP 1 143 893 A1

(12)

(43) Date of publication: 17.10.2001 Bulletin 2001/42 (21) Application number: 99943095.2 (22) Date of filing: 25.08.1999

(51) International Patent Classification (IPC)7: A61F 9/013 (86) International application number: PCT/GB9902/889 (87) International publication number: WO 0013/630 (16.03.2000 Gazette 2000/11)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 02.09.1998 GB 9819124 (71) Applicant: Dowd, Owen O. London W12 7HP (GB)	(72) Inventor: Dowd, Owen O. London W12 7HP (GB)