System And Method For Measuring Contact Impedance Of An Electrode
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United States of America Patent
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Issued Date -
Aug 27, 2015
app pub date -
Aug 1, 2012
filing date -
Aug 1, 2012
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Abandoned
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Abstract
An apparatus and method that determines a quality of a connection of an electrode to a patient is provided. The apparatus includes at least three electrodes selectively connected to a patient for sensing an electro-physiological signal representing a patient parameter. A current source is connected to each of the at least three electrodes, the current source able to apply both a positive current and a negative current. A control processor is connected to the current source and the at least three electrodes. The control processor identifies a number of unique electrode pairs of the at least three electrodes and controls the current source to simultaneously apply a positive current to one electrode and a negative current to an other electrode of each identified electrode pair to determine a connection quality for at least one of the at least three electrodes.
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