Pulse wave measuring apparatus that can obtain optimum pressurization force of pressure sensor
First Claim
1. A pulse wave measuring apparatus comprising:
- a pressure sensor detecting an intra-arterial pressure waveform superficial of a body,an acquiring unit acquiring a direct current component from a pressure value output from said pressure sensor, anda defining unit including means for detecting a site where said direct current component is stable, for defining a pressurization force of pressing said pressure sensor against a body surface as an optimum pressurization force, when said direct current component is stable.
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Accused Products
Abstract
A pulse wave measuring apparatus extracts a direct current component from a pressure value obtained from a sensor pressure, and defines the pressurization force of the cuff as the optimum pressurization force when that direct current component is stable. Following determination of the optimum pressurization force, the pulse wave measuring apparatus monitors whether the direct current component obtained from the pressure sensor is optimum or not, and adjusts the pressure, when not. By determining the rising sharpness of the peak and waveform distortion in the sphygmographic waveform, determination is made whether the pressurization force of the cuff is appropriate or not to carry out further adjustment of pressure, as necessary.
17 Citations
10 Claims
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1. A pulse wave measuring apparatus comprising:
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a pressure sensor detecting an intra-arterial pressure waveform superficial of a body, an acquiring unit acquiring a direct current component from a pressure value output from said pressure sensor, and a defining unit including means for detecting a site where said direct current component is stable, for defining a pressurization force of pressing said pressure sensor against a body surface as an optimum pressurization force, when said direct current component is stable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A computer-readable medium containing instructions for causing a computer to execute control of a pulse wave measuring apparatus including a pressure sensor detecting an intra-arterial pressure waveform superficial of a body, by a method comprising:
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acquiring a direct current component from a pressure value output from said pressure sensor obtained from said pulse wave measuring apparatus, and detecting a site where said direct current component is stable, for defining a pressurization force of pressing said pressure sensor against a body surface as an optimum pressurization force, when said direct current component is stable.
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Specification