Diagnostic test devices with improved fluid movement and...

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G01N 33/558 (2006.01) G01N 33/52 (2006.01) G01N 33/543 (2006.01) G01N 33/569 (2006.01)

Patent

CA 2266747

A diagnostic test device contains a filter and exhibits improved transfer of fluid movement between assay components. The filter is an integral part of a strip and can be used for strip-testing of whole blood and other particulate- containing solutions generally. Surfaces of parts within the device are combined in particular ways to improve sample and reagent fluid movement and an optional chemical additive increase test quality. Whole blood HIV tests are exemplified that are easy to carry out and that show improved chemical resistance to false positive results.

Dispositif pour épreuve diagnostique, comportant un filtre et améliorant la circulation des fluides entre les composants d'essai. Le filtre est intégré à une bande, pouvant être utilisé aux essais sur bande pour le sang entier et autres solutions à base de particules, en général. Les surfaces de différentes parties du dispositif sont agencées de manière spécifique, pour améliorer la circulation des fluides échantillons et réactifs, et pour améliorer aussi la qualité des épreuves par additif chimique facultatif. On décrit par exemple des tests sérologiques sur sang entier pour la détection d'anticorps anti-VIH, qui sont faciles à exécuter et qui offrent une protection chimique améliorée contre les résultats positifs erronés.

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