Blood pressure monitor apparatus
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United States of America Patent
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Apr 28, 1998
Grant Date -
N/A
app pub date -
Sep 10, 1996
filing date -
Jan 17, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A blood pressure measurement of a blood pressure measuring device is terminated by a blood pressure measurement terminating device, when a difference .vertline.D.sub.M -D.sub.CP .vertline./D.sub.CP between a phase difference D.sub.M obtained according to a phase difference-blood pressure relationship based on a monitor blood pressure value MBP determined by a monitor blood pressure determining device, and an actual phase difference D.sub.CP obtained by a phase difference calculating device, when the blood pressure measurement of the blood pressure measuring device starts, is smaller than a reference value .alpha.. Thus, so long as the pressure pulse wave-blood pressure relationship is effectively applicable, no blood pressure measurement is carried out for updating the current pressure pulse wave-blood pressure relationship, so that the frequency of blood pressure measurements using a cuff is decreased and the discomfort of a living subject is reduced.
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