Method and system for measuring blood pressure

Abstract

The invention discloses a blood pressure measurement method and system. The method comprises the following steps that a blood pressure measurement expression with correction factors is set according to the relationship between shear stress and the blood flow velocity V; characteristic parameters of the blood flow velocity V of a measured object are obtained, meanwhile the blood pressure reference value of the measured object is directly collected through a pressure gauge, and inverse calculation is conducted on the blood pressure measurement expression to obtain a correction factor value; when the practical blood pressure measurement is conducted, the correction factor value of the corresponding measured object is read from a database, and the blood pressure measuring result is calculated on the basis of the blood pressure measurement expression and the characteristic parameters, collected in real time, of the blood flow velocity. The blood pressure measurement method and system are simple, safe, convenient in test, and can achieve remote real-time monitoring of the blood pressure of the user, are good in real-time detection performance, can cope with various accidents of sudden illness of a blood-pressure-disease patient timely, eliminate the damage to the human body by a traditional direct measurement method, store the correction factors and characteristic constant values of the different measured objects for blood pressure calculation, and are high in measurement accuracy.

Description

technical field [0001] The invention relates to a method and system for measuring blood pressure. Background technique [0002] Systemic arterial blood pressure is referred to as blood pressure (BP). Blood pressure is the pressure on the walls of blood vessels when blood flows in the blood vessels, and it is the driving force for blood to flow in the blood vessels. When the ventricle contracts, blood flows from the ventricle into the artery. At this time, the pressure of the blood on the artery is the highest, which is called systolic blood pressure (SBP). Ventricular diastole, arterial blood vessels elastically retract, blood continues to flow forward slowly, but blood pressure drops, and the pressure at this time is called diastolic blood pressure (DBP). [0003] With the increasing incidence of hypertension, sphygmomanometers have entered people's lives and become one of the indispensable household appliances for many people, bringing convenience to early detection of h...

AI Technical Summary

Problems solved by technology

The blood pressure measured by this test method has high accuracy, but it will cause crushing damage to the blood vessels; and each test has to be inflated and deflated, which makes it difficult to measure frequently or continuously; it is generally recommended not to move when inflating and deflating. It also requires the measurer to maintain a certain posture. For example, measuring the back of the hand or wrist requires the sphygmomanometer to be kept at the same height as the heart, so the blood pressure of the human body cannot be monitored in real time.

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