(19)

(11)

EP 1 139 953 A1

(12)

(43) Date of publication: 10.10.2001 Bulletin 2001/41 (21) Application number: 99962460.4 (22) Date of filing: 23.12.1999

(51) International Patent Classification (IPC)7: A61F 13/15 (86) International application number: PCT/GB9904/427 (87) International publication number: WO 0038/604 (06.07.2000 Gazette 2000/27)

(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: 23.12.1998 GB 9828587 26.04.1999 GB 9909586 (71) Applicant: Camelot Technologies Limited Alberta T1V 1T4 (CA)	(72) Inventors: CHEYNE, Ian De Winto, Alberta T0L 0X0 (CA) DAN, Ervin Calgary,Alberta T2R 1H3 (CA) (74) Representative: Bradley, Josephine Mary et al Mathys & Squire100 Gray's Inn Road London WC1X 8AL London WC1X 8AL (GB)