Chest non-invasive blood pressure detection method based on pulse wave conduction time

A technology of conduction time and detection method, applied in sensors, cardiac catheterization, blood vessel evaluation, etc., can solve the problems of large size of detection device, skin allergy, and large sensor stiffness, and achieve convenient use, improved comfort, and accurate fitting results. Effect

A technology of conduction time and detection method, applied in sensors, cardiac catheterization, blood vessel evaluation, etc., can solve the problems of large size of detection device, skin allergy, and large sensor stiffness, and achieve convenient use, improved comfort, and accurate fitting results. Effect

CN110292370AActive Publication Date: 2019-10-01ZHEJIANG UNIV
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  • Chest non-invasive blood pressure detection method based on pulse wave conduction time
  • Chest non-invasive blood pressure detection method based on pulse wave conduction time
  • Chest non-invasive blood pressure detection method based on pulse wave conduction time

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Embodiment Construction

[0055] The present invention will be further elaborated and illustrated below in conjunction with the accompanying drawings and specific embodiments. The technical features of the various implementations in the present invention can be combined accordingly on the premise that there is no conflict with each other.

[0056] Such as figure 1 Shown, a kind of chest non-invasive blood pressure detection method based on pulse wave transit time among the present invention, its steps are as follows:

[0057] S1: at the chest of the individual to be tested (at the outlet of the chest aorta, figure 2 ) is to detect the position and obtain the detection data related to the blood pressure, the detection data includes the electrocardiogram signal ECG, the pulse signal PPG, the cardiac impedance signal ICG and the accelerated plethysmography signal APG;

[0058] S2: Extract the features of ECG, PPG, ICG and APG waveform signals, and obtain the pulse wave transit time PTT, pre-ejection PE...

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Abstract

The invention discloses a chest non-invasive blood pressure detection method based on pulse wave conduction time and belongs to the field of non-invasive blood pressure monitoring methods. The problemthat a time parameter, namely the blood pre-ejection period, is ignored in pulse wave conduction time PTT in traditional detection approaches is considered in the method, correspondingly the measurement position is fixed to an outlet of the thoracic aorta, the cardiac ejection period PEP is obtained through electrocardio signals ECG and aorta acceleration tracing signals APG, the influence of PEPin PTT is removed, the more accurate pulse wave conduction time PTT' is obtained, the detected conduction time is more proximate to the actual conduction time, and it is ensured that accurate aorta blood pressure can be obtained. Meanwhile, according to the method, by taking the defect that the accuracy of traditional non-invasive blood pressure detection is not ideal into consideration, a bloodpressure model is improved, and the heart rate HR, the pulse wave morphological parameter C and the skin conductance rho are added, so that a model fitting result is more accurate.

Description

technical field [0001] The invention belongs to the field of noninvasive blood pressure monitoring equipment, and in particular relates to a chest noninvasive blood pressure detection method based on pulse wave transit time. Background technique [0002] Blood pressure is one of the important physiological parameters reflecting the cardiovascular status of the human body. Human blood pressure is volatile, and continuous non-invasive blood pressure measurement can detect beat-by-beat arterial blood pressure, which is helpful for the prevention, diagnosis, treatment and control of cardiovascular diseases. The current non-invasive blood pressure detection technology is roughly divided into intermittent measurement and continuous measurement. Intermittent measurement methods include auscultation and oscillometric methods, which are characterized by high accuracy, but have high requirements for operators and can only obtain intermittent blood pressure values. Continuous measure...

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Application Information

Patent Timeline
01 Oct 2019
Publication
CN110292370A
IPC
A61B5/021; A61B5/0205; A61B5/00
CPC
A61B5/0205; A61B5/02125; A61B5/6823; A61B5/6833; A61B5/72
Inventors
周聪聪; 张一鸣