Patent Number: 6,168,956

Title: Multiple component chromatographic assay device

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.

Inventors: Chandler; Howard M. (W. Vancouver, CA)

Assignee: Beckman Coulter, Inc.

International Classification: B01L 3/00 (20060101); G01N 30/90 (20060101); G01N 30/00 (20060101); G01N 33/53 (20060101); G01N 33/558 (20060101); G01N 30/02 (20060101); G01N 30/30 (20060101); G01N 37/00 (20060101); G01N 033/558 ()

Expiration Date: 01/02/2018