Electrophysiological analysis system

  • US 8,655,443 B2
  • Filed: 02/22/2008
  • Issued: 02/18/2014
  • Est. Priority Date: 02/23/2007
  • Status: Active Grant
First Claim
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1. An electrophysiological analysis system which is intended, in particular for the detection of pathological conditions, the system comprising:

  • a series of electrodes intended to be placed at various regions of a human body distant from one another;

    an adjustable DC voltage source controlled in order to produce successive waves of a DC voltage which varies from one wave to the other, a duration of the waves being greater than or equal to approximately 0.2 second;

    a switching circuit designed to selectively connect a pair of active electrodes to the voltage source, and to connect at least one other high-impedance electrode;

    a measuring circuit designed to collect data representative of current in the active electrodes and of the potentials on at least some electrodes connected in high impedance, in response to the application of the waves, and in that, from one wave to the other, the range of voltages covered by the waves is capable of causing the appearance or disappearance of electrochemical phenomena in a vicinity of the active electrodes; and

    the measuring circuit including a resistor designed to be connected between one of the electrodes of an active pair and a reference voltage.

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