Method and device for measuring blood pressure upon radial artery pulse wave conduction time

A technology of pulse conduction time and conduction time, which is applied in the fields of biomedicine and medical equipment, can solve problems such as large detection values, large detection result errors, and difficult signal acquisition, so as to improve accuracy, reduce processing difficulty, and improve comfort Effect

Active Publication Date: 2015-03-04
SHENZHEN VEEPOO TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for measuring blood pressure based on the pulse wave transit time of the radial artery, aiming at solving the pro...

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  • Method and device for measuring blood pressure upon radial artery pulse wave conduction time
  • Method and device for measuring blood pressure upon radial artery pulse wave conduction time
  • Method and device for measuring blood pressure upon radial artery pulse wave conduction time

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Embodiment 1

[0024] figure 1 The implementation flow of the method for measuring blood pressure based on radial artery pulse wave transit time provided by Embodiment 1 of the present invention is shown, and the details are as follows:

[0025] In step S101, a radial artery pulse wave signal is collected by a photoelectric sensor, and the radial artery pulse wave signal is sequentially filtered, amplified, and AD converted to obtain a first radial artery pulse wave signal.

[0026] In this embodiment, since the first pulse transit time DPPT, the second pulse transit time SPPT and the blood pressure values ​​obtained by the pulse cycle are slightly changed from radial artery waveforms acquired in different postures, relatively speaking, the sitting posture comfortable mode acquires The radial artery pulse wave signal has less interference. Preferably, the radial artery pulse wave signal is collected in a comfortable sitting posture, including the left wrist or the radial artery pulse wave si...

Embodiment 2

[0040] Figure 4 A specific structural block diagram of the blood pressure measurement device based on the radial pulse wave transit time provided by the second embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown. In this embodiment, the blood pressure measuring device based on radial pulse wave transit time includes: a microprocessor, a storage module connected to the microprocessor, a wireless communication module, a display module, a communication interface module with a computer, a battery, power management modules and photoelectric sensors such as Figure 5 shown.

[0041] Wherein, the microprocessor includes:

[0042] The first processing unit 41 is used to collect the radial artery pulse wave signal through the photoelectric sensor, perform filter amplification and AD conversion on the radial artery pulse wave signal sequentially, and obtain the first radial arter...

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Abstract

The invention is suitable for the technical field of biological medicines and medical facilities, and provides a method and a device for measuring blood pressure upon radial artery pulse wave conduction time. The method comprises the following steps: acquiring a human body radial artery pulse wave signal through a photoelectric sensor, and performing filtering amplification and AD (analog-digital) conversion on the human body radial artery pulse wave signal through a microprocessor to finally obtain a human body radial artery pulse wave signal with low noise and obvious feature points; performing frequency-domain transformation, wavelet processing and second order difference on the obtained human body radial artery pulse wave signal to determine the feature points of a human body radial artery pulse wave form; calculating an accurate numerical value of the human body radial artery pulse wave conduction time; establishing a regression equation for measuring the blood pressure to finally obtain blood pressure values. According to the method and the device provided by the invention, the blood pressure only needs to be measured at a single point, so that the processing difficulty of the signal is reduced, a measuring process is simplified, and the comfort of blood pressure measurement is improved; meanwhile, the accuracy of blood pressure measurement is improved through method improvements, and moreover, the blood pressure can be continuously monitored for a long time.

Description

technical field [0001] The invention belongs to the technical field of biomedicine and medical equipment, and in particular relates to a method and device for measuring blood pressure based on radial artery pulse wave transit time. Background technique [0002] Cardiovascular and cerebrovascular diseases are one of the most serious diseases threatening human beings in the world today, and its morbidity and mortality have leapt to the first place in the world. With the birth of high-tech medical equipment, although it has brought good news to the treatment of diseases, the resulting high medical expenses have brought enormous pressure to families and society. It is extremely necessary to find a suitable technology to alleviate this contradiction. The human pulse wave originates from the heartbeat and is an important sign of human life. Therefore, the pulse wave signal contains extremely rich physiological and pathological information of the cardiovascular system. Cardiovascu...

Claims

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Application Information

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IPC IPC(8): A61B5/021
CPCA61B5/02125
Inventor 李久朝唐以彬
Owner SHENZHEN VEEPOO TECH
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