Method and device for bio impedance measurement
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United States of America Patent
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Dec 12, 2017
Grant Date -
May 8, 2014
app pub date -
Nov 5, 2013
filing date -
Nov 5, 2012
priority date (Note) -
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Abstract
Method for bio impedance measurement on a skin surface of a living body, using a bio impedance measurement device having a sensing electrode and a pilot electrode, includes the steps of placing the sensing electrode and pilot electrode on the surface of the body; providing a guard electrode adapted to separate the surface in at least two zones, among which a sensing zone including the sensing electrode and a current injection zone including the pilot electrode; providing a controller, electrically connected to the electrodes, adapted to control the current source; and controlling the potential of the guard electrode, at least at given stopping frequencies, in order to stop current from flowing from one zone to the other.
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