Multiple component chromatographic assay device
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United States of America Patent
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Jan 2, 2001
Grant Date -
N/A
app pub date -
May 29, 1991
filing date -
May 29, 1991
priority date (Note) -
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Abstract
An assay device for the performance of immunochromatographic assays and other assays has two principal parts, a first opposable component and a second opposable component. The first opposable component can contain a sample preparation means and a second opposable component can contain a suitable chromatographic medium for detection of an analyte. Alternative embodiments of the invention can also exist. For example, the first opposable component can have a sample preparation means and a chromatographic medium that is not in communication with the sample preparation means and the second opposable component can contain a communicating means that, when the two components are brought into opposition, establishes a communication between the sample preparation means and the chromatographic medium. Assay devices according to the present invention can be used for both unidirectional and bidirectional assays.
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