(19)

(11)

EP 0 537 180 A1

(12)

(43) Date of publication: 21.04.1993 Bulletin 1993/16 (21) Application number: 91910075.0 (22) Date of filing: 09.05.1991

(51) International Patent Classification (IPC):  A61K 6/ 06( . ) A61L 27/ 12( . ) C04B 28/ 34( . ) A61L 27/ 00( . ) C04B 12/ 02( . ) A61F 2/ 00( . ) (86) International application number: PCT/US1991/003208 (87) International publication number: WO 1991/017722 (28.11.1991 Gazette 1991/27)

(84) Designated Contracting States: AT BE DE DK FR GB IT LU NL SE (30) Priority: 11.05.1990 US 19900522167 (71) Applicant: LIFECORE MEDICAL, Inc. Chaska, Minnesota 55318 (US)	(72) Inventors: JENSEN, Deborah, L. Stillwater, MN 55082 (US) FRANK, Deborah, A. Maple Grove, MN 55369 (US) (74) Representative: Dipl.-Ing. H. Hauck, Dipl.-Ing. E. Graalfs, Dipl.-Ing. W. Wehnert, Dr.-Ing. W. Döring  Postfach 30 24 30 D-20308 Hamburg D-20308 Hamburg (DE)