Saliva testing and fingerprint identification method and device

Details Saliva testing and fingerprint identification method and device Saliva testing and fingerprint identification method and device

G - Physics

01

N

G01N 33/543 (2006.01) A61B 10/00 (2006.01)

Patent

CA 2062900

ABSTRACT OF THE DISCLOSURE A method and device for testing for the presence of substances such as drugs in the saliva while simultaneously positively identifying the test subject. The device comprises an absorbent pad and a membrane mounted to the absorbent pad containing a plurality of separated areas provided with different absorbed antibody having a specific receptor site for specific antigens produced by different predetermined drugs and a base area without antibodies. The method of testing comprises the steps of: (a) puncturing the finger of a test subject to obtain a quantity of saliva on the finger, (b) mixing a microsome labelled antibody to the saliva to form a complexed solution, (c) covering the finger with a thin film of saliva and (d) placing the finger on a membrane containing antibodies specifically selected to bind antigens produced by the substances being tested for in the saliva so that solution is deposited from the finger on the membrane indicating presence or absence of a substance while presenting the fingerprint of the test subject.

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