G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 33/52 (2006.01) C12Q 1/54 (2006.01) G01N 33/66 (2006.01)
Patent
CA 2182545
A multilayer reagent test strip measures the concentration of analyte in a liquid sample that is applied to it. The sample is guided to a number of assay areas arrayed along the strip, where the analyte can react with a reagent to cause a color change. Each assay area also includes an inhibitor for the color- change reaction. The inhibitor concentration increases in successive assay areas; thus, the number of areas that change color is a measure of the analyte concentration. The test strip is particularly adapted for measuring glucose in awhole blood sample. In a preferred embodiment, the sample is guided to the assay areas along a path formed by crushing selected areas of a membrane, and the assay areas are uncrushed areas of the membrane.
Dato Remedios
Douglas Joel
Kiser Ernest
Maxson Mark
Rice Edward G.
Lifescan Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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