(19)

(11)

EP 0 559 782 A1

(12)

(43) Date of publication: 15.09.1993 Bulletin 1993/37 (21) Application number: 92901452.0 (22) Date of filing: 20.11.1991

(51) International Patent Classification (IPC):  A61B 10/ 00( . ) (86) International application number: PCT/US1991/008705 (87) International publication number: WO 1992/009239 (11.06.1992 Gazette 1992/13)

(84) Designated Contracting States: DE FR GB (30) Priority: 21.11.1990 US 19900616428 01.05.1991 US 19910694364 (71) Applicants: KANE, Patricia, B. Rockford, IL 61101 (US) HALVORSON, June, G. Rockford, IL 61111 (US)	(72) Inventors: KANE, Patricia, B. Rockford, IL 61101 (US) HALVORSON, June, G. Rockford, IL 61111 (US) (74) Representative: Adams, William Gordon, et al  RAWORTH, MOSS & COOK 36 Sydenham Road Croydon Surrey CR0 2EF Croydon Surrey CR0 2EF (GB)