Skin impedance matching system and method for skin/electrode interface
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United States of America Patent
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May 21, 2013
Grant Date -
Nov 6, 2008
app pub date -
May 2, 2008
filing date -
May 4, 2007
priority date (Note) -
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Abstract
The present invention relates to a system for measuring the input impedance of a skin/electrode interface and selectively modifying the input impedance of the monitoring circuit to match the measured input impedance. More particularly, a simplified method for correcting for input impedance mismatch between electronic monitoring circuitry and the skin/electrode interface. In accordance with one embodiment of the invention, an input impedance measuring circuit will interface with a microprocessor and a reconfigurable switch network to select the input impedance of the electronic monitoring circuitry, thus eliminating the impedance sensitivity of EMG or EKG instruments.
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