Chemical assays

Details Chemical assays Chemical assays

2001-11-22

2008-10-07

Gakh, Yelena (Department: 1797)

Chemical apparatus and process disinfecting, deodorizing, preser

Analyzer, structured indicator, or manipulative laboratory...

Means for analyzing liquid or solid sample

C422S105000, C422S105000

Reexamination Certificate

active

07431884

ABSTRACT:
An assay device in which to carry out a fluid-phase chemical assay, comprising means for supporting a test substrate, a sample chamber for receiving a fluid sample and at least one fluid control device for controlling the movement of fluid into and/or out of the sample chamber, wherein the fluid control device comprises a fluid outlet chamber in fluid communication with the sample chamber, and a displaceable flexible diaphragm the displacement of which alters the volume of the outlet chamber so as to allow and/or restrict fluid flow between the outlet and sample chambers. The invention also provides assay apparatus incorporating such a device, an assay station for use as part of such apparatus, a fluid control unit for use as part of the assay device and a method of conducting an assay which may involve the use of such apparatus and devices.

REFERENCES:
patent: 3982438 (1976-09-01), Byrd
patent: 4858883 (1989-08-01), Webster
patent: 5088515 (1992-02-01), Kamen
patent: 5863502 (1999-01-01), Southgate et al.
patent: 6043080 (2000-03-01), Lipshutz et al.
patent: 6075367 (2000-06-01), Brugger
patent: 6149787 (2000-11-01), Sundberg et al.
patent: 6168948 (2001-01-01), Anderson et al.

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