Patent ID: 7067264
Filing Date: 2006-06-27
Classification: G01N,Y10S

Abstract:
1. A method for determining the presence of human blood, comprising: providing a test device including a strip having a test sample introduction station, a test station, and a control station, said stations disposed in spaced apart relationship, said test sample introduction station including labeled antihuman Hb antibodies, said test station including immobilized antihuman Hb antibodies and immobilized human IgM antibodies, and said control station including immobilized polyclonal antibodies; depositing a test sample suspected of containing human hemoglobin Hb antigen at said test sample introduction station; allowing said human hemoglobin Hb antigen to bind with some of said labeled antihuman Hb antibodies to form a complex, both said complex and unbound labeled antihuman Hb antibodies to migrate to said test station, at said test station said complex to bind with said immobilized antihuman Hb antibodies thereby providing a visual indication, said unbound labeled antihuman Hb antibodies to migrate to said control station, and, at said control station said unbound labeled antihuman Hb antibodies to bind with said immobilized polyclonal antibodies thereby providing a visual indication; and, observing said visual indications at both said test station and said control station, thereby confirming the presence of human blood.