(19)

(11)

EP 0 445 111 A1

(12)

(43) Date of publication: 11.09.1991 Bulletin 1991/37 (21) Application number: 89903316.0 (22) Date of filing: 24.02.1989

(51) International Patent Classification (IPC):  A61M 16/ 04( . ) A61B 5/ 083( . ) G01N 31/ 22( . ) (86) International application number: PCT/US1989/000760 (87) International publication number: WO 1989/007956 (08.09.1989 Gazette 1989/21)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 26.02.1988 US 19880160863 (71) Applicant: MERIDIAN MEDICAL CORPORATION Seattle, WA 98105 (US)	(72) Inventors: BABB, Albert, L. Seattle, WA 98144 (US) HLASTALA, Michael, P. Seattle, WA 98177 (US) TARBOX, Gary, L. Bainbridge Island, WA 98110 (US) (74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät  Maximilianstrasse 58 D-80538 München D-80538 München (DE)