Patent ID: 9267939
Filing Date: 2016-02-23
CPC Classification: B01L,G01N

Claim Text:
1. A cartridge for sensing at least one analyte in a sample, said cartridge comprising: a sample holding chamber for receiving said sample and retaining said sample; a first conduit connected to said sample holding chamber; at least one analyte sensor, wherein said sensor comprises an analyte-responsive surface and said surface is within said first conduit; a second conduit for retaining a fluid, said second conduit connected to said first conduit; a valve connected to an opening in said first conduit, wherein said valve is closed by contact with said sample; a pump capable of displacing said sample from said holding chamber into said first conduit, wherein said pump, said valve, and said first and second conduits are configured such that said fluid from said second conduit can be displaced into said first conduit upon closure of the valve; and an immunoassay composition for detecting said analyte, said immunoassay composition comprising at least three different antibodies, the at least three different antibodies being capable of binding to at least three different epitopes on said analyte, in which at least two of the at least three different antibodies are capable of binding to at least two different epitopes on a subform of the analyte, and in which at least one of the at least three different epitopes on the analyte is unavailable for binding on the subform.