(19)

(11)

EP 0 041 986 A1

(12)

(43) Date of publication: 23.12.1981 Bulletin 1981/51 (21) Application number: 81900113.0 (22) Date of filing: 14.11.1980

(51) International Patent Classification (IPC):  A61M 25/ 00( . ) A61M 25/ 01( . ) (86) International application number: PCT/US1980/001540 (87) International publication number: WO 1981/001519 (11.06.1981 Gazette 1981/14)

(84) Designated Contracting States: AT CH DE FR GB LI NL SE (30) Priority: 03.12.1979 US 19790099608 (71) Applicant: BAXTER TRAVENOL LABORATORIES, INC. Deerfield, IL 60015 (US)	(72) Inventor: KLING, John E. Dallas, TX 75204 (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)