Patent ID: 6555061
Filing Date: 2003-04-29
Classification: G01N,Y10T

Abstract:
A reagent test strip for use in an apparatus for measuring an analyte concentration in a biological fluid, comprising(a) a support having a top surface, a bottom surface opposite, and a through hole for passing a sample of the biological fluid, (b) a mesh, having a first surface adjoining the bottom surface of and covering the hole in, the support, and (c) a reagent matrix attached to a second surface of the mesh, opposite the first surface, the matrix comprising (i) a sample receiving surface for receiving the sample from the mesh and passing at least a portion of the sample toward a testing surface opposite to the receiving surface and (ii) a reagent for indicating the analyte concentration, by creating at the testing surface a change in reflectance that can be related to the analyte concentration; and (d) an adhesive layer; and wherein the reagent matrix is attached to, and separated from, the second surface of the mesh by the adhesive layer such that a capillary gap is present between the mesh and the reagent matrix.