Optical assay device and method

G - Physics – 01 – N

Patent

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G01N 33/543 (2006.01) B01L 3/00 (2006.01)

Patent

CA 2366307

The present invention involves an optical assay device and method of use for the detection of an analyte of interest in a sample that conveniently allows control of the flow characteristics of the sample through the device without significant user intervention. The optical assay device includes a base having an absorbent material, and a member having an optically active test stack that is rotatably coupled to the base for rotation between a lowered position and a raised position. In the lowered position, the optically active test stack contacts the absorbent material for drawing the sample through the surface. In the raised position, the optically active test stack does not contact the absorbent material.

La présente invention porte sur un dispositif d'analyse optique et sur un procédé d'utilisation en vue de détecter un analyte dans un échantillon, ce qui permet de réguler sans inconvénient les caractéristiques d'écoulement de l'échantillon dans le dispositif sans l'intervention poussée d'un utilisateur. Le dispositif d'analyse optique comprend une base comportant un matériau absorbant, et un élément comportant une membrane de test optiquement active couplée de manière rotative à la base de façon à tourner entre une position abaissée et une position surélevée. Dans la position abaissée, la membrane de test optiquement active vient en contact avec le matériau absorbant de façon à entraîner l'échantillon dans la surface. Dans la position surélevée, la membrane de test optiquement active ne vient pas en contact avec le matériau absorbant.

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