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Pulse wave detection device and method of detecting pulse wave

A technology of pulse wave and filter, which is applied in the field of pulse wave detection device, can solve the problems of noise reduction and achieve the effect of reducing noise and improving precision

Inactive Publication Date: 2005-12-07
OMRON HEALTHCARE CO LTD
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  • Summary
  • Abstract
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Problems solved by technology

[0004] However, in order to select the most appropriate sensor, the conventional pulse wave detection device uses a multiplexer to obtain the pressure information obtained from a plurality of pressure sensors while switching, thereby selecting the most appropriate sensor. When the pulse wave is measured after the sensor, it is not possible to sufficiently reduce the noise in order to grasp the characteristics of the waveform

Method used

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  • Pulse wave detection device and method of detecting pulse wave
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  • Pulse wave detection device and method of detecting pulse wave

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Embodiment Construction

[0041] Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. In addition, the same reference numerals are used for the same or corresponding parts in the drawings, and the description thereof will not be repeated.

[0042] (first embodiment)

[0043] (Appearance and structure of the pulse wave detection device according to the first embodiment of the present invention)

[0044] figure 1 Indicates the connection relationship between the sensor component and the fixed platform. figure 2 Indicates the state where the pulse wave detection device is attached to the body.

[0045] refer to figure 1 and figure 2 , the pulse wave detection device includes a sensor assembly 1, a fixed table 2 and a display assembly 3 (not shown in the figure), the sensor assembly 1 is installed on the wrist surface, so as to detect the pulse wave of the wrist artery, the fixed table 2 is used for The hand bowl is fixed to detect t...

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Abstract

A sensor array (19) having a plurality of pressure sensors arranged on a measurement surface, a pressurization portion (18) for pressing the sensor array laid across an artery of a living body, a sensor signal selection portion (20) for selecting a pressure signal among pressure signals from the plurality of pressure sensors, a filter portion (22) having a cutoff frequency variable corresponding to an instruction, and a filter control portion (11) for providing an instruction to vary a value of the cutoff frequency are included. The filter control portion switches the cutoff frequency in a situation wherein a plurality of pressure signals respectively obtained from the plurality of pressure sensors are successively switched and output by the sensor signal selection portion to specify the pressure sensor for pulse wave detection, and in a situation wherein the pulse wave is detected from the specified pressure sensor.

Description

technical field [0001] The present invention relates to a pulse wave detection device and a pulse wave detection method, in particular to a pulse wave detection device and a pulse wave detection device for detecting a pulse wave by selecting a pressure sensor for pulse wave detection from a plurality of pressure sensors Pulse wave detection method. Background technique [0002] The pulse wave is detected based on pressure information which is a voltage signal obtained from a pressure sensor on a surface pressed against a body artery. In order to detect the pulse wave with high precision, a plurality of pressure sensors are used, and the pulse wave is measured based on the pressure information from the most appropriate pressure sensor located in the center of the artery. [0003] Conventionally, there has been a compression pulse wave detection device that uses a multiplexer to multiplex the pressure information obtained from a plurality of pressure sensors into a signal lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0245A61B5/021
CPCA61B5/021A61B2562/0247A61B2562/043A61B5/6824A61B5/02116
Inventor 佐藤博则稻垣孝福井亮
Owner OMRON HEALTHCARE CO LTD
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