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Blood pressure detection apparatus and blood pressure detection method

A detection device, a technology for blood pressure, used in vascular assessment, diagnostic recording/measurement, medical science, etc.

Active Publication Date: 2012-03-21
SEIKO EPSON CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Thus, blood pressure can be measured in various daily situations, but as mentioned above, in the prior art, the position of the body needs to be kept for 30 seconds or more (including 30 seconds) each time blood pressure is measured, which is very difficult for the user. It is very inconvenient

Method used

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  • Blood pressure detection apparatus and blood pressure detection method
  • Blood pressure detection apparatus and blood pressure detection method
  • Blood pressure detection apparatus and blood pressure detection method

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Embodiment Construction

[0048] First, the findings of the inventors of the present invention will be described.

[0049] The inventors of the present invention have found through experiments that the applied pressure (compressed pressure by the pressurizing mechanism) when a predetermined waveform pattern appears in the waveform representing the pressure fluctuation of the blood vessel becomes the highest blood pressure value. Accordingly, if it is observed whether a predetermined waveform pattern appears, the applied pressure when the predetermined waveform pattern is observed, that is, the pressure value compressed by the pressurizing mechanism, can be used as the systolic blood pressure value (maximum blood pressure value), unlike the prior art The blood vessel volume change in the whole process from pressurization to decompression is observed as in the above. As a result, the measurement time can be shortened compared with the conventional blood pressure determining method.

[0050] In addition,...

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Abstract

A blood pressure detection apparatus includes a pressure sensor (12), a press mechanism (10) that applies pressure to a blood vessel by pressing a living body, and can gradually decrease the pressure, and a blood pressure calculation section that determines the pressure when a given waveform pattern appears in a waveform of pulse waves obtained by the pressure sensor to be a maximal blood pressure, determines the pressure when the waveform has a maximum amplitude to be a mean blood pressure, and calculates a minimal blood pressure using the maximal blood pressure and the mean blood pressure.

Description

technical field [0001] The invention relates to a blood pressure detection device and a blood pressure detection method. Background technique [0002] Conventionally, the following two methods have been generally used for non-invasive blood pressure measurement. [0003] The first method is called auscultation. After the artery is externally pressurized above the maximum blood pressure, when the pressure is slowly decompressed, the blood vessel vibrates in the audible range within a specific pressure range, which is the so-called Korotkoff sound. In the auscultation method, a person's blood pressure is determined by taking the pressurized pressure value at which the Korotkoff sound starts to be produced as the highest blood pressure value and the pressurized pressure value at which the Korotkoff sound disappears as the minimum blood pressure value. [0004] The second method is oscillometry, which uses the property that the mechanical properties of the arterial wall of a b...

Claims

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Application Information

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IPC IPC(8): A61B5/022
CPCA61B5/0225A61B5/6824
Inventor 横山敏彦杤久保修
Owner SEIKO EPSON CORP
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