Patent ID: 6709633
Filing Date: 2004-03-23
Classification: A61B,G01N,Y10S

Abstract:
A self-contained disposable device to be used in testing a body fluid specimen for the presence therein of one or more foreign substances or for the presence therein of a naturally occurring substance in an abnormal concentration, comprising, in combination, a multi-ply composite of substantially co-extensive plies and a wettable test wick secured therein, said composite comprising a non-absorbent intermediate ply in which said wettable test wick is located, second and third non-absorbent plies laminated to opposite sides of said intermediate ply and substantially co-extensive therewith, at least one of said second and third non-absorbent plies being transparent in at least the area thereof covering said test wick, at least one of said second and third plies having a small passageway therein providing communication for body fluid with said test wick, and said test wick containing at least one deposit of at least one test reagent which gives a visual response when contacted by a body fluid containing a substance to which said test reagent is visually responsive said small passageway providing the only access of the body fluid specimen to said wettable test wick.