Chemistry: analytical and immunological testing – Involving an insoluble carrier for immobilizing immunochemicals
Reexamination Certificate
2007-06-12
2007-06-12
Nguyen, Bao-Thuy L. (Department: 1641)
Chemistry: analytical and immunological testing
Involving an insoluble carrier for immobilizing immunochemicals
C436S514000, C436S164000, C436S165000, C436S169000, C436S528000, C436S530000, C436S805000, C436S810000, C436S811000, C436S817000, C435S287600, C435S970000, C435S810000, C435S974000, C435S975000
Reexamination Certificate
active
10346683
ABSTRACT:
A test strip adapted to receive a sample and detect an analyte therein is provided. The test strip comprises a sample addition zone to which a sample may be added; an absorbent zone proximal to the sample addition zone; one or more test zones distal to the sample addition zone, at least one of the test zones including a first analyte binding agent immobilized therein which is capable of binding to the analyte to be detected; and a terminal sample flow zone distal to the one or more test zones, the absorbent zone being positioned relative to the sample addition zone and having an absorption capacity relative to the other zones of the test strip such that a distal diffusion front of a sample added to the sample addition zone diffuses from the sample addition zone to a distal diffusion point within the terminal sample flow zone and then reverses direction and diffuses proximal relative to the one or more test zones.
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Dinello Robert K.
Polito Alan J.
Sierra George H.
Thayer Richard M.
Wieck Henry J.
Cooley Godward Kronish LLP
Nguyen Bao-Thuy L.
Relia Diagnostic Systems LLC
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