Optimization calculation method for atrial fibrillation blood pressure based on principle of oscillometry

Abstract

The invention discloses an optimization calculation method for atrial fibrillation blood pressure based on the principle of oscillometry. According to the method, the working principle of blood pressure measurement through the oscillometry is adopted, through three cuffs, pulse wave signals of the two hands in the acting process of the pressure cuff are collected, and then the pulse wave signals are processed through the optimization calculation method for blood pressure. According to the optimization calculation method, in the measurement process of a patient with atrial fibrillation and arrhythmia, through the static pressure measured by the pressure cuff and the characteristics of pulse waves sensed by the other cuffs, the optimization result of the blood pressure is calculated by comparing two sets of data, the frequent problem of inaccurate blood pressure measurement result caused by irregularity of pulse waves in existing oscillometry sphygmomanometer measurement is solved, and thus the accuracy of blood pressure measurement of the patient with arrhythmia is improved. Therefore, the method is of great significance for blood pressure measurement of the patient with arrhythmia.

Description

technical field [0001] The invention belongs to the technical field of biomedical engineering, and in particular relates to an optimal calculation method for atrial fibrillation blood pressure based on the principle of oscillometric method. Background technique [0002] Wave blood pressure measurement is a clinically recognized and most commonly used method of blood pressure (BP) measurement. So far, no matter it is an auscultatory sphygmomanometer or an electronic sphygmomanometer, there are large measurement errors. The accuracy of the auscultation method depends on the user's experience and judgment. The most direct reason is that both of them can only get more accurate systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse rate (PR) for sinus rhythm (SR). result. However, patients with arrhythmia are common, especially those with atrial fibrillation (AF) are increasing year by year. Different from sinus rhythm, the ventricular beat in AF is irregular, ...

AI Technical Summary

Problems solved by technology

Practice has proved that this method has good applicability for SR measurement, but there are many difficulties in the measurement of AF patients, such as peak extraction, pulse envelope shape extraction

It is easy to prove that the existing sphygmomanometer based on the oscillometric measurement principle has obvious defects in the obtained blood pressure values ​​SBP and DBP when measuring the blood pressure of AF sinus patients, especially patients with rapid heart rate (HR), which is manifested as measurement results Often fluctuates abnormally, making it impossible to determine the true blood pressure value

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