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Wrist-belt-free blood pressure measuring system

A measurement system, blood pressure measurement technology, applied in diagnostic recording/measurement, vascular assessment, medical science, etc., can solve problems such as poor measurement accuracy, and achieve the effect of reducing the impact

Active Publication Date: 2017-03-22
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a cuffless, Continuous, dynamic, beat-by-beat blood pressure measurement system

Method used

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  • Wrist-belt-free blood pressure measuring system
  • Wrist-belt-free blood pressure measuring system
  • Wrist-belt-free blood pressure measuring system

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Embodiment Construction

[0017] In order to make the technical solutions and advantages of the present invention clearer and easier to understand, the present invention will be further described in detail below in combination with specific implementation examples and with reference to the accompanying drawings.

[0018] see figure 1 , the embodiment of the present invention provides a cuffless, continuous, dynamic blood pressure measurement system, including a fitting unit 1, a physiological signal acquisition quality online calculation unit 2, a pulse wave transit time online calculation unit 3, a Kalman filter unit 4, Blood pressure calculation unit5. Fitting unit 1 is used for function fitting of reference blood pressure data and pulse wave transit time; physiological signal acquisition quality online calculation unit 2 is used for online evaluation of physiological signal waveforms such as ECG, blood oxygen, impedance and body surface pressure pulse wave. The waveform quality obtained under daily...

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Abstract

The invention provides a wrist-belt-free blood pressure measuring system. The wrist-belt-free blood pressure measuring system comprises a fitting unit, a physiological signal obtaining and quality online calculation unit, a pulse wave transmission time online calculation unit, a Kalman filtering unit and a blood pressure calculation unit, wherein the fitting is used for function fitting of reference blood pressure data and pulse wave transmission time; the physiological signal obtaining and quality online calculation unit is used for evaluating waveform quality, obtained in daily work and living conditions, of physiological signal waveforms online, and a waveform quality factor is obtained; the pulse wave transmission time online calculation unit is used for calculating pulse wave transmission time from the physiological signal waveforms, wherein the pulse wave transmission time is a sequence; the Kalman filtering unit is used for Kalman filtering of blood pressure or pulse wave transmission time; the blood pressure calculation unit is used for calculating blood pressure according to the pulse wave transmission time and fitting parameters, and the blood pressure is a sequence. The system can reduce influences, caused by noise through the physiological signal waveforms, on blood pressure monitoring precision, and wrist-belt-free dynamic and continuous blood pressure measurement precision is improved.

Description

technical field [0001] The invention relates to the field of blood pressure monitoring sensor measurement, in particular to a cuffless blood pressure measurement system. Background technique [0002] With the rapid development of social economy, people pay more and more attention to health status; especially with the growth of aging population and the increase of chronic disease population, the number of hypertensive patients is increasing, the existing arm or wrist ambulatory blood pressure monitoring equipment Due to the need to inflate and deflate, it has a great impact on the monitored person (especially not suitable for dynamic continuous blood pressure monitoring during sleep), cannot realize beat-by-beat and continuous monitoring of arterial blood pressure, and has shortcomings such as high power consumption. [0003] Indirect beat-to-beat blood pressure based on pulse wave transit time is a commonly used continuous and ambulatory blood pressure monitoring method, but...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/021
CPCA61B5/02125A61B5/725
Inventor 陈贤祥夏善红张强方震
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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