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Method and device for non-invasively measuring blood pressure

A blood pressure measurement device and blood pressure technology, applied in the direction of cardiac catheterization, etc., can solve problems such as calculation methods, and achieve the effects of improving accuracy, easy implementation, increasing stability and reliability

Active Publication Date: 2014-08-20
SHENZHEN UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the prior art has not been able to establish a targeted calculation method for the above-mentioned various situations to obtain the best calculation results, which can not only ensure the accuracy of the individual, but also ensure the accuracy of statistics

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  • Method and device for non-invasively measuring blood pressure
  • Method and device for non-invasively measuring blood pressure
  • Method and device for non-invasively measuring blood pressure

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Embodiment approach

[0044] In one embodiment, the signal feature template is pre-set by considering one or more of age, arm thickness, fat or thin, pregnancy, kidney disease, cardiovascular disease, blood pressure, and loose cuff binding. The features of the samples considering the above various factors can be extracted, and the features can be the envelope shape of the oscillating pulse wave.

[0045] In one embodiment, step 106 further includes: comparing the envelope shape of the oscillating pulse wave in each segmentation interval with the signal feature template, selecting the closest signal feature template as a matching template, and obtaining the coefficient based on the current segmentation and matching ; The matching coefficient mainly includes the proportional coefficient for calculating systolic blood pressure and diastolic blood pressure.

[0046] In one embodiment, step 108 further includes: calculating systolic blood pressure, diastolic blood pressure and pulse rate according to th...

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Abstract

The invention discloses a method for non-invasively measuring blood pressure. The method includes pressure detection, pulse wave oscillation and a blood pressure calculation process based on detected pressure and oscillated pulse wave. The blood pressure calculation process includes: calculating mean blood pressure according to oscillated pulse wave; segmenting blood pressure to be calculated according to the mean blood pressure; using corresponding preset signal feature templates to match each segment; and calculating blood pressure according to matched signal feature templates. The invention further discloses a device for non-invasively measuring blood pressure. By applying template matching to segments, approximation to real comparison objects is achieved, and accuracy of blood pressure calculation is improved.

Description

technical field [0001] The invention relates to a medical device, in particular to a non-invasive blood pressure measurement method and device. Background technique [0002] In the prior art, most of the non-invasive blood pressure measurement is based on the oscillation method, and the oscillation wave and the cuff pressure are processed during the measurement, and the blood pressure value is calculated according to an empirical proportional coefficient. Since there are many factors that affect blood pressure, such as age, arm thickness, fat and thin, pregnancy, kidney disease, cardiovascular disease, high and low blood pressure, etc., the current method is based on auscultation or invasive pressure as a reference, using synchronous, sequential To obtain the results of the reference method and the non-invasive blood pressure comparison method, and use statistics to correct the results of the non-invasive blood pressure, so as to obtain the measurement results that meet the ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/0225
Inventor 叶继伦陈思平汪天富叶南亭张建波
Owner SHENZHEN UNIV