(19)

(11)

EP 0 031 335 A1

(12)

(43) Date of publication: 08.07.1981 Bulletin 1981/27 (21) Application number: 80901159.0 (22) Date of filing: 13.05.1980

(51) International Patent Classification (IPC):  C12Q 1/ 44( . ) C12Q 1/ 61( . ) (86) International application number: PCT/US1980/000574 (87) International publication number: WO 1980/002697 (11.12.1980 Gazette 1980/28)

(84) Designated Contracting States: CH DE FR GB LI NL SE (30) Priority: 04.06.1979 US 19790045467 06.05.1980 EP 19800301476 (71) Applicant: AMERICAN HOSPITAL SUPPLY CORPORATION Evanston, IL 60201 (US)	(72) Inventors: MAZZA, John Charles Miami, FL 33189 (US) DUNKA, Louis John, Jr. Miami, FL 33157 (US) (74) Representative: Seaborn, George Stephen, et al  c/o Edward Evans & Co. Chancery House 53-64 Chancery Lane London WC2A 1SD London WC2A 1SD (GB)