(19)

(11)

EP 0 050 147 A1

(12)

(43) Date of publication: 28.04.1982 Bulletin 1982/17 (21) Application number: 81901223.0 (22) Date of filing: 16.03.1981

(51) International Patent Classification (IPC):  A61M 1/ 00( . ) A61M 39/ 28( . ) A61M 1/ 34( . ) (86) International application number: PCT/US1981/000335 (87) International publication number: WO 1981/002980 (29.10.1981 Gazette 1981/25)

(84) Designated Contracting States: DE FR GB (30) Priority: 14.04.1980 US 19800139884 (71) Applicant: BAXTER TRAVENOL LABORATORIES, INC. Deerfield, IL 60015 (US)	(72) Inventors: BILSTAD, Arnold A. Deerfield, IL 60015 (US) BROWN, Richard I. Northbrook, IL 60062 (US) (74) Representative: MacGregor, Gordon, et al  ERIC POTTER CLARKSON St. Mary's Court St. Mary's Gate Nottingham, NG1 1LE Nottingham, NG1 1LE (GB)