Oscillometric blood pressure measuring apparatus
First Claim
1. An oscillometric blood pressure measuring apparatus, comprising:
- an inflatable cuff adapted to be wound around a body portion of a living subject;
an oscillometric blood pressure measuring device which supplies a fluid pressure to said cuff to press said body portion of said subject, detects variation of a plurality of pulse amplitudes of a pulse wave which is produced in said cuff in synchronism with a heartbeat of said subject while said fluid pressure of said cuff is changed, and determines a mean blood pressure of said subject based on said variation of said pulse amplitudes;
a cuff pulse-wave detecting device which determines, based on the determined mean blood pressure of said subject, a reference pressure value of said fluid pressure of said cuff such that the determined reference pressure value is not higher than said determined mean blood pressure, holds said fluid pressure of said cuff at the determined reference pressure value, detects a pulse wave which is produced in said cuff when said fluid pressure of said cuff is held at said determined reference pressure value, and produces a pulse wave signal representative of the detected pulse wave; and
a waveform storing device including a waveform memory, for storing a waveform of a pulse wave of said subject by utilizing said pulse wave signal produced by said cuff pulse-wave detecting device.
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Accused Products
Abstract
An oscillometric blood pressure measuring apparatus, including an inflatable cuff adapted to be wound around a body portion of a living subject, an oscillometric blood pressure measuring device which supplies a fluid pressure to the cuff to press the body portion of the subject, detects variation of a plurality of pulse amplitudes of a pulse wave which is produced in the cuff in synchronism with heartbeat of the subject while the fluid pressure of the cuff is changed, and determines a blood pressure of the subject based on the variation of the pulse amplitudes, a cuff pulse-wave detecting device which detects a pulse wave which is produced in the cuff when the fluid pressure of the cuff takes a reference pressure value not higher than a mean blood pressure of the subject, and produces a pulse wave signal representative of the detected pulse wave, and a waveform storing device including a waveform memory, for storing a waveform of a pulse wave of the subject by utilizing the pulse wave signal produced by the cuff pulse-wave detecting device.
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Citations
11 Claims
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1. An oscillometric blood pressure measuring apparatus, comprising:
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an inflatable cuff adapted to be wound around a body portion of a living subject; an oscillometric blood pressure measuring device which supplies a fluid pressure to said cuff to press said body portion of said subject, detects variation of a plurality of pulse amplitudes of a pulse wave which is produced in said cuff in synchronism with a heartbeat of said subject while said fluid pressure of said cuff is changed, and determines a mean blood pressure of said subject based on said variation of said pulse amplitudes; a cuff pulse-wave detecting device which determines, based on the determined mean blood pressure of said subject, a reference pressure value of said fluid pressure of said cuff such that the determined reference pressure value is not higher than said determined mean blood pressure, holds said fluid pressure of said cuff at the determined reference pressure value, detects a pulse wave which is produced in said cuff when said fluid pressure of said cuff is held at said determined reference pressure value, and produces a pulse wave signal representative of the detected pulse wave; and a waveform storing device including a waveform memory, for storing a waveform of a pulse wave of said subject by utilizing said pulse wave signal produced by said cuff pulse-wave detecting device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification