A non-invasive continuous blood pressure measurement method

Abstract

The invention relates to a noninvasive continuous blood pressure measuring method, comprising the following steps: acquiring a synchronizing signal of electrocardio and pulse waves of a subject; performing smoothing processing on the synchronizing signal of electrocardio and pulse waves of the subject, detecting an electrocardio signal R wave peak value point and characteristic points of the pulse waves and marking positions, calculating to obtain conducting time of the pulse wave and conduction ratio of corresponding pulse wave; and bringing the conducting time and conduction ratio of the pulse wave into an individualized blood pressure parameter model, and calculating to obtain continuous systolic pressure of the subject. A new parameter, that is conduction ratio, is introduced in the existing noninvasive blood pressure model, and an individualized parameter model is established for each subject, so as to obtain more accurate blood pressure results. The method is simple in operation, high in accuracy, and provides important basis for clinic blood pressure monitoring, home monitoring, and early warning, and monitoring of hypotensive drugs.

Description

Technical field [0001] The invention relates to a non-invasive continuous blood pressure measurement method, in particular to a continuous blood pressure measurement method based on pulse wave transit time and conduction ratio. Background technique [0002] Arterial pressure is an important physiological parameter that reflects the human body's circulatory function, and it is also an important basis for clinical diagnosis of diseases, observation of treatment effects, and prognostic judgment. Non-invasive continuous blood pressure measurement can monitor the blood pressure changes in each cardiac cycle. Therefore, non-invasive continuous blood pressure measurement is of great significance in clinical blood pressure monitoring, home monitoring and early warning, and monitoring of antihypertensive drugs. [0003] In recent years, non-invasive continuous blood pressure measurement methods that use pulse wave transit time (PWTT) or conduction velocity (PWV) to estimate blood pressure h...

AI Technical Summary

Problems solved by technology

However, this model is a unified model of blood pressure parameters established by different subjects, and its accuracy is easily affected by individual differences.

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