Real-time blood pressure measuring device and measuring method

Abstract

The invention relates to a real-time blood pressure measuring device. The real-time blood pressure measuring device comprises a first pulse wave sensor module, a second pulse wave sensor module and a signal processing module, wherein the first pulse wave sensor module is used for acquiring a first pulse wave signal of an aorta in each cardiac cycle, and the first pulse wave signal is a pressure pulse wave; the second pulse wave sensor module is used for acquiring a second pulse wave signal of a capillary artery adjacent to the aorta in each cardiac cycle, and the second pulse wave signal is a volume pulse wave; and the signal processing module is used for acquiring the first pulse wave signal at the aorta and the second pulse wave signal of the capillary artery adjacent to the aorta, acquiring transmission time difference between the first pulse wave signal and the second pulse wave signal, obtaining peripheral arterial pulse wave transmission characteristic time and obtaining arterial blood pressure in each cardiac cycle according to relation between the peripheral arterial pulse wave transmission characteristic time and blood pressure. The invention further relates to a blood pressure measuring method.

Description

technical field [0001] The invention relates to a blood pressure measuring device and a blood pressure measuring method, in particular to a blood pressure noninvasive, continuous and real-time measuring device and a measuring method. Background technique [0002] Blood pressure measurement plays an important role in clinical diagnosis, and is also of great significance to the monitoring and daily health care of cardiovascular and cerebrovascular patients. From a physiological point of view, there is a complex regulation mechanism in human blood pressure. Under the premise of satisfying the oxygen and energy supply of various tissues and organs, the blood pressure of the human body will be maintained at a certain set point as much as possible. However, there are many factors that affect blood pressure. From the perspective of instantaneous effects, exercise, mood swings, changes in respiratory rhythm, smoking, drinking, or use of certain drugs, etc., will lead to changes in ...

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Problems solved by technology

[0004] However, considering the convenience of measurement and operation in the prior art, the invasive method is not suitable for daily blood pressure monitoring; and in the current non-invasive method, the cuff-type measurement method compresses the human artery to completely block it, and can only be used for blood pressure monitoring. A single measurement cannot monitor blood pressure changes in real time; the method based on the pulse wave waveform needs to compress the artery, causing discomfort to the human body, and is not suitable for long-term use; the device for measuring blood pressure based on the pulse wave propagation velocity generally needs to measure the ECG signal And the peripheral pulse wave signal, the measurement points are scattered, not suitable for portable blood pressure monitoring equipment

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