Patent ID: 8431386
Filing Date: 2013-04-30
Classification: C12Q,G01N

Abstract:
1. A device for conducting a non-invasive analysis of a bodily fluid to determine the presence and the level of a certain constituent carried by the bodily fluid, the device comprising: a target area on a carrier substrate of a fibrous material having fibers and voids establishing a high void volume within a range of about eight to twelve percent of the total volume of the carrier substrate in juxtaposition with the target area and with fibers within the carrier substrate, with voids establishing communication between fibers and ambient air; and an indicator formulation changing color in response to exposure to the certain constituent in the presence of ambient air to provide a visible indication of the presence and the level of the certain constituent carried by the bodily fluid, the indicator formulation being carried by the fibers of the carrier substrate such that the indicator formulation is placed in juxtaposition with voids in the carrier substrate and within the target area for enabling communication with ambient air within the voids and reception of a sample of the bodily fluid later placed upon the target area of the carrier substrate and in communication with ambient air within the voids for enabling reaction with the indicator formulation on the fibers, with the sample exposed to ambient air present in the juxtaposed voids as the certain constituent in the sample reacts with the indicator formulation, the indicator formulation consisting essentially of a chromagen formulation and a constituent-specific formulation selected from formulations responsive to levels of any one of a plurality of different certain constituents.