Patent ID: 7159476
Filing Date: 2007-01-09
Classification: A61B

Abstract:
1. Apparatus for measuring the electrical resistance of a portion of skin, and for detecting imprecise placement of the portion of skin onto sensors adapted for such measurements and disposed on a surface of said apparatus, said apparatus comprising in combination: at least two main sensors disposed on the surface and defining an area thereon, said at least two main sensors being capable of measuring electrical resistance; at least two auxiliary sensors disposed on the surface and outside of the area defined by said at least two main sensors, said at least two auxiliary sensors being capable of measuring electrical resistance; and a processor for receiving and for analyzing measured electrical resistance from said at least two main sensors and from said at least two auxiliary sensors when the portion of skin is placed in contact with said apparatus; whereby a measured electrical resistance from said at least two main sensors is used in the measurement of the electrical resistance of the portion of skin only if said at least two auxiliary sensors have a measured electrical resistance.