IMPEDANCE MONITORS, ELECTRODE ARRAYS AND METHODS OF USE
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United States of America Patent
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Issued Date -
Oct 23, 2014
app pub date -
Feb 21, 2014
filing date -
Feb 22, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A portable bioelectric impedance monitor for monitoring extracellular fluid levels includes a tetrapolar electrode array lead with four electrodes arranged sequentially and axially along the lead, and circuitry coupled with the at least four electrodes configured to measure bioelectric impedance extracellular fluid in a human subject at a frequency of less than 15 kHz. The electrodes are adhered to a human subject/patient on the patient's torso or one of the patient's limbs. One embodiment includes a Tetrapolar Analog Front End Patient Interface circuit configured to convert two electrode operation of a commercial Impedance Converter, Network Analyzer into a tetrapolar operation for excitation and impedance measurement of the human subject.
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