(19)

(11)

EP 0 929 275 A1

(12)

(43) Date of publication: 21.07.1999 Bulletin 1999/29 (21) Application number: 96927264.0 (22) Date of filing: 24.07.1996

(51) International Patent Classification (IPC):  A61F 5/ 56( . ) (86) International application number: PCT/US1996/012378 (87) International publication number: WO 1998/002119 (22.01.1998 Gazette 1998/03)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 11.07.1996 US 19960678230 (71) Applicant: Lilly, Frank T., Jr. Lake Worth, TX 76135 (US)	(72) Inventor: Lilly, Frank T., Jr. Lake Worth, TX 76135 (US) (74) Representative: Casey, Lindsay Joseph, et al  F. R. Kelly & Co. 27 Clyde Road Ballsbridge Dublin 4 Dublin 4 (IE)