Patent ID: 8673651
Filing Date: 2014-03-18
Classification: B01L,G01N

Abstract:
1. A self-defense package for indicating the presence of a particular drug in food or drink before ingestion, said package including an elongated generally tubular casing in the form of a drinking straw or stirrer having a continuous sidewall with open ends, said elongated generally tubular casing enclosing an absorbent fibrous layer elongated strip having an inner surface and outer surface and a distal end and a proximal end, a plurality of test patches fixed to said absorbent layer near said distal end, a plastic film substrate of a self sustaining thickness covers the inner surface of said strip and a thin film covers the outer surface of said strip; said plastic film substrate, said absorbent layer and said thin film being ultrasonically welded together; said test patches each having a separate capillary substrate, said capillary substrate including a particular reagent chromatographically sensitive to a particular drug, whereby said package is unobtrusively manipulated to bring said test module into contact with food or drink wherein liquid from said food or drink will travel from an end of said strip to said reagent patches by capillary action within said fibrous layer and said package presents a visual chromatic indicator as to the presence of a particular drug in the food or drink.