Patent ID: 9636036
Date: 2017-05-02
CPC Classifications: A61B

Claim:
1. An electrophysiological analysis system comprising: (a) a series of electrodes intended to be placed in different regions of a human body; (b) a direct current voltage source; (c) a control circuit suitable for selectively applying direct current pulses, generated by the voltage source, to a pair of active electrodes, the active electrodes forming an anode and a cathode, and for connecting at least one other passive electrode with impedance, the passive electrode serving to measure potential reached by the human body, and the control circuit comprising an amplifier circuit between the direct current voltage source and one of the active electrodes, with a feedback loop controlling gain; (d) a measurement circuit arranged to obtain data representative of the current at the cathode and the potentials on at least some of the electrodes connected with impedance, in response to the application of the pulses, the data being suitable for use to determining a value of electrochemical conductance of skin of the human body; and (e) a third circuit controlling a difference between a potential of the anode and a potential reached by the body, according to the voltage delivered by the direct current voltage source.