Patent ID: 7291481

Claim:
A test device for assaying a sample of vaginal fluid for the presence of a hydrolytic enzyme associated with Trichomonas vaginalis , said test device comprising a strip of solid porous material that allows aqueous liquids to pass therethrough while retaining particulate matter greater than 20 microns in diameter; and a conjugate comprising a chromogen covalently bonded to a substrate for said hydrolytic enzyme and releasable from said substrate by hydrolysis, said chromogen being a species that undergoes a detectable change upon hydrolytic release from said substrate, and said conjugate deposited in a region of said strip that is spatially separated from a sample application site on said strip by a length of said strip that is free of said conjugate, such that a sample of vaginal fluid applied to said application site migrates through said length to remove said particulate matter before reaching said conjugate.