The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 24, 2001
Filed:
Feb. 02, 1998
Fujirebio Inc., Tokyo, JP;
Abstract
An enzyme-labeled immunoassay is performed by the steps of allowing a test sample to react with an enzyme-labeled reagent, allowing a substrate to react with the enzyme to form a signal, and immobilising the enzyme-labeled reagent, with the prevention of a further signal formation from a predetermined time on after the immobilisation of the enzyme-labeled reagent, using an enzyme inhibitor. A device for performing this enzyme-labeled immunoassay includes an absorbent material capable of transporting a developing solution by capillary action, the absorbent material including (a) a developing liquid application zone, (b) an enzyme-labeled reagent zone containing an enzyme-labeled reagent, (c) a sample receiving zone, and (d) an indicator reagent zone capable of immobilising the enzyme-labeled reagent after the reaction of the test sample with the enzyme-labeled reagent in an amount dependent on the assay result, with an enzyme inhibitor being applied to a portion in the absorbent material upstream of the enzyme-labeled reagent zone, which enzyme inhibitor prevents the formation of a signal from a predetermined time on after the enzyme-labeled reagent is immobilised at the indicator reagent zone.