Rapid non-invasive blood pressure measuring device
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United States of America Patent
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Feb 22, 2000
Grant Date -
N/A
app pub date -
Jun 26, 1996
filing date -
Jun 26, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A blood pressure can be obtained by supplying an external pressure to a portion of an artery. The external pressure is preferably between the systolic and diastolic pressure. An event which occurs at least once a cycle can then be identified. This event can be, for example, a peak in the arterial compliance that occurs at a transmural pressure approximately equal to zero. A pair of signals, one that is an arterial volume-indicating signal, and one that is an arterial pressure-indicating signal can be used to identify this event. Alternately, a small signal high-frequency exciter component can be placed upon the pressure or volume of the artery and detected to determine the time that the transmural pressure is equal to zero.
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