(19)

(11)

EP 0 850 089 A1

(12)

(43) Date of publication: 01.07.1998 Bulletin 1998/27 (21) Application number: 96928030.0 (22) Date of filing: 30.07.1996

(51) International Patent Classification (IPC):  A61B 18/ 20( . ) A61F 9/ 01( . ) A61F 9/ 007( . ) (86) International application number: PCT/US1996/012556 (87) International publication number: WO 1997/006856 (27.02.1997 Gazette 1997/10)

(84) Designated Contracting States: DE FR GB (30) Priority: 17.08.1995 US 19950516581 (71) Applicant: Escalon Medical Corp. Skillman, NJ 08558 (US)	(72) Inventors: JUHASZ, Tibor Irvine, CA 92715-4038 (US) BILLE, Josef, F. D-69118 Heidelberg (DE) (74) Representative: Thomas, Philip John Duval  Eric Potter Clarkson, Park View House, 58 The Ropewalk Nottingham NG1 5DD Nottingham NG1 5DD (GB)