(19)

(11)

EP 1 214 024 A1

(12)

(43) Date of publication: 19.06.2002 Bulletin 2002/25 (21) Application number: 00954765.4 (22) Date of filing: 23.08.2000

(51) International Patent Classification (IPC)7: A61F 2/38 (86) International application number: PCT/GB0003/259 (87) International publication number: WO 0113/825 (01.03.2001 Gazette 2001/09)

(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: 23.08.1999 GB 9919954 (71) Applicant: Walker, Peter Stanley New York, NY 10003-7183 (US)	(72) Inventor: WALKER, Peter Stanley,Cooper Union Res. Found. Ne w York, NY 10003-7183 (US) (74) Representative: Weitzel, David Stanley  Brookes Batchellor102-108 Clerkenwell Road London EC1M 5SA London EC1M 5SA (GB)