Impedance based device for non-invasive measurement of blood pressure and ankle-brachial index
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United States of America Patent
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Feb 15, 2011
Grant Date -
Apr 23, 2009
app pub date -
Oct 19, 2007
filing date -
Oct 19, 2007
priority date (Note) -
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Abstract
A device for non-invasive measurement of blood pressure includes a blood pressure cuff, a plethysmographic electrode for acquiring an impedance plethysmogram distal to the cuff and a processing device to inflate and deflate the cuff generate the impedance plethysmogram and to determine the systolic and diastolic blood pressures. The device can be used to measure systolic or diastolic blood pressure or both. It can also be used to take ankle-brachial measurements. An autocorrelation technique can be used to correct noise.
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