Patent ID: 6351666
Filing Date: 2002-02-26
Classification: A61B,Y10S

Abstract:
An apparatus for sensing and processing electropotentials from the symptomatic breast of a human female subject which includes a lesion containing quadrant and a plurality of non-lesion containing quadrants comprising:at least one DC biopotential reference sensor for contacting the female subject at a reference location, and each at least one DC biopotential test sensors for contacting the symptomatic breast operating with a reference sensor during a test period to detect electropotentials and to provide output test potentials, one of said test sensors forming a lesion test sensor for contact with a skin surface of the symptomatic breast over the lesion in the lesion containing quadrant and another test sensor forming a first non-lesion test sensor for contact with a skin surface of the symptomatic breast in a first non-lesion quadrant, separate from said lesion quadrant, a third of said test sensors forming a second non-lesion test sensor for contact with a skin surface of the symptomatic breast in a second non-lesion quadrant separate from said lesion and first non-lesion quadrants and a fourth of said test sensors forming a third non-lesion test sensor for contact with a skin surface of the symptomatic breast in a third non-lesion quadrant separate from said lesion and first and second non-lesion quadrants, a signal processing section being connected to separately receive the output test potentials provided by said reference sensor and lesion test sensor and said reference sensor and first, second and third non-lesion test sensors, said processing section including a processor for obtaining a first variable from said output test potentials provided by said reference sensor and lesion test sensor and a second variable by arithmetically combining all of said output test potentials provided by said reference sensor and said first, second and third non-lesion test sensors, the processor operating to subtract the second variable from the first variable to obtain a first differential value.