(19)

(11)

EP 0 563 331 A1

(12)

(43) Date of publication: 06.10.1993 Bulletin 1993/40 (21) Application number: 92904917.0 (22) Date of filing: 19.12.1991

(51) International Patent Classification (IPC):  A61L 24/ 00( . ) A61L 24/ 10( . ) A61L 24/ 04( . ) (86) International application number: PCT/US1991/009638 (87) International publication number: WO 1992/013578 (20.08.1992 Gazette 1992/22)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE (30) Priority: 11.02.1991 US 19910653602 (71) Applicant: BAUSCH & LOMB INCORPORATED Rochester New York 14601-0054 (US)	(72) Inventors: BOWYER, Barry, L. Clearwater, FL 34619 (US) ROBIN, Jeffrey Barrington, IL 60010 (US) TERRY, Richard, N. Valrico, FL 33594 (US) GARG, Atul, K. Tampa, FL 33617 (US) (74) Representative: Allam, Peter Clerk  LLOYD WISE, TREGEAR & CO. Norman House 105-109 Strand London WC2R 0AE London WC2R 0AE (GB)