Patent ID: 8052930
Filing Date: 2011-11-08
Classification: G01N,Y10T

Abstract:
1. An apparatus for tissue sample analysis comprising: a first electrode array providing a surface for receiving an ex vivo tissue sample in abutment with the surface, the surface providing a plurality of electrically independent voltage measurement points and voltage application points; an electronic computer communicating with the first electrode array to control voltage applied to the voltage application points and to read voltages obtained at the voltage measurement points, the electronic computer programmed to analyze tissue sample by (a) establishing a voltage gradient among the voltage application points defining a boundary across the first electrode array; (b) sweeping the boundary across the first electrode array while the first electrode array is in contact with the tissue sample; (c) monitoring the voltage measurement points at the boundary to measure impedance at multiple points along the boundary for each of multiple different locations of the boundary during the sweep; and (d) providing an output characterizing the tissue sample according to the measured impedance at the multiple points.