(19)

(11)

EP 0 208 709 A1

(12)

(43) Date of publication: 21.01.1987 Bulletin 1987/04 (21) Application number: 86900414.0 (22) Date of filing: 03.12.1985

(51) International Patent Classification (IPC):  A61K 33/ 14( . ) A61M 1/ 16( . ) (86) International application number: PCT/US1985/002375 (87) International publication number: WO 1986/003407 (19.06.1986 Gazette 1986/13)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 06.12.1984 US 19840678641 (71) Applicant: Renal Systems, Inc. Minneapolis Minnesota 55441 (US)	(72) Inventors: COSENTINO, Louis, C. Plymouth, MN 55447 (US) HNOJEWYJ, Anatol, M. Minneapolis, MN 55413 (US) JANSEN, Walter, B. Plymouth, MN 55441 (US) (74) Representative: Marlow, Nicholas Simon, et al  Reddie & Grose 16, Theobalds Road London WC1X 8PL London WC1X 8PL (GB)