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Body feeling network-based sleeveless driven pulse pressure measurement and automatic calibration device

An arterial blood pressure and automatic calibration technology, which is applied in the field of medical instruments, can solve problems such as accuracy limitations, and achieve the effect of safe and convenient use, good portability, and automatic calibration

Inactive Publication Date: 2010-07-14
THE CHINESE UNIVERSITY OF HONG KONG
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in practical applications, changes in the user's physiological conditions are dynamic and unpredictable, so the accuracy of current cuffless blood pressure measurement devices is limited

Method used

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  • Body feeling network-based sleeveless driven pulse pressure measurement and automatic calibration device
  • Body feeling network-based sleeveless driven pulse pressure measurement and automatic calibration device
  • Body feeling network-based sleeveless driven pulse pressure measurement and automatic calibration device

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Embodiment Construction

[0026] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] The blood pressure measurement device provided by the present invention is a cuffless arterial blood pressure measurement device based on the body sensor network, the so-called body sensor network (Body Sensor Networks), compared with the general network, its characteristic is that the communication terminal of the body sensor network is a wearable Sensors that integrate communication, data acquisition and processing functions on the body surface or implanted in the body, mainly biomedical sensors that detect human physiological signals, supplemented by non-biological sensors that measure environmental parameters. In terms of communication transmission, the somatosensory network uses electrical signals and biological signals as transmission carriers, wireless transmission with microwave and laser as the medium, and / or wired transmission with cabl...

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Abstract

The invention discloses a body feeling network-based sleeveless driven pulse pressure measurement and automatic calibration device. The device comprises a body feeling network node for acquiring a heart pulsation related signal from the body surface of a user, a body feeling network node for measuring a transmission distance between the heart and a heart pulsation related signal acquisition point, a body feeling network node for measuring angle change of the heart pulsation related signal acquisition point relative to the position of the heart, and a control and calculation central pivot. The body feeling network nodes of the device are distributed on the body surface of the user, so the device is simple and convenient to mount, has no injury to the human body and does not need to inflate sleeve straps in the calibration and measurement processes; the device realizes the communication between the nodes and the control and calculation central pivot in a wireless mode, is convenient to carry, does not affect the daily life and can be continuously used for long time; and simultaneously, the device extracts multiple physiological parameters aiming at different individuals and different physiological states to automatically finish calibration, and has high estimation accuracy of blood pressure, comprehensive monitoring and broad application range.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a cuffless arterial blood pressure measuring device. Background technique [0002] The cuffless arterial blood pressure measurement device usually uses the Pulse Transit Time (PTT) to estimate the arterial blood pressure. Numerous studies have shown that, for individual subjects, there is an approximately linear relationship between pulse wave transit time and blood pressure, but this relationship is individual dependent. On the one hand, individuals with different physiological conditions (such as height, age, gender) have different slopes and intercepts of the linear relationship between pulse wave transit time and arterial blood pressure; Taking drugs, exercising, posture changes), the linear relationship will change accordingly. Therefore, to estimate the arterial blood pressure using the pulse wave transit time, the measurement device needs to be calibrated for each user...

Claims

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Application Information

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IPC IPC(8): A61B5/021A61B5/02
Inventor 顾闻博潘颂欣张元亭
Owner THE CHINESE UNIVERSITY OF HONG KONG
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