Blood pressure measuring device and method
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United States of America Patent
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May 10, 1994
Grant Date -
N/A
app pub date -
Jul 16, 1991
filing date -
Jul 18, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A device for measuring blood pressure includes a sensor arrangement which is releasably attached to the exterior of a body and which is electrically conductively connected with electronic circuit. The sensor arrangement and the circuit are configured to determine, in at least one measuring region of the body, a valve which is a measure for a variable that changes periodically over time in the rhythm of the pulse beat and which is correlated with the blood pressure. This variable may, for example, be the flow velocity and/or flow quantity and/or the volume of the arterial blood and/or a cross-sectional dimension and/or the flow cross section area of an arterial blood vessel. The sensor and circuit further determine a value which is a measure for the pulse wave velocity. By linking the two values together and including at least one calibration value, at least one value that is characteristic for of the blood pressure (preferably including at least the systolic blood. pressure) can be determined. The device makes it possible to measure the blood pressure of a person at least quasi-continuously with relatively little bother for the person.
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