(19)

(11)

EP 0 031 841 A1

(12)

(43) Date of publication: 15.07.1981 Bulletin 1981/28 (21) Application number: 80901445.0 (22) Date of filing: 03.07.1980

(51) International Patent Classification (IPC):  A61B 5/ 00( . ) A61B 5/ 05( . ) (86) International application number: PCT/US1980/000837 (87) International publication number: WO 1981/000045 (22.01.1981 Gazette 1981/02)

(84) Designated Contracting States: DE FR GB (30) Priority: 05.07.1979 US 19790054820 (71) Applicant: DIA-MED, INC. Hopkins MN 55343 (US)	(72) Inventor: JOHNSON, Wilton C. Hopkins, MN 55343 (US)