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, and a defining unit 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.
20 Citations
15 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 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 pulse wave measuring apparatus comprising:
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a pressure sensor detecting an intra-arterial pressure waveform superficial of a body, and a determination unit determining whether a pressurization force of said pressure sensor against a body surface is appropriate or not based on a sphygmographic waveform detected with said pressure sensor. - View Dependent Claims (11, 12, 13)
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14. A program product of 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, causing the computer to execute the steps of:
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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 defining a pressurization force of said pressure sensor against a body surface as an optimum pressurization force when said direct current component is stable.
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15. A program product of 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, the program product causing the computer to execute the steps of:
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acquiring a sphygmographic waveform detected with said pressure sensor from said pulse wave measuring apparatus, and determining whether a pressurization force of said pressure sensor against a body surface is appropriate or not based on said acquired sphygmographic waveform.
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Specification