Body surface detection method and device for high frequency wave of repolarization of ventricle

Abstract

An apparatus for detecting the bipolar HF wave of ventricle on the surface of body is composed of a movable unit consisting of signal acquisition circuit, amplifier, A / D converter and emitting module, and a fixed unit consisting of data receiver, USB communication unit, PC algorithm processing unit and output module. Its detecting method including signal conversion and removal of interference and noise is also disclosed.

Description

technical field [0001] The invention relates to a body surface non-invasive detection method of ventricular repolarization high-frequency waves and a device for realizing the method. Background technique [0002] Sudden death (Sudden Death, referred to as SD) refers to sudden, rapid and unexpected natural death, and SD accounts for 15% to 32% of human deaths. According to statistics, about 6 million people are killed by SD every year in the world, and 350,000 people are killed by SD every year in the United States, with an average of 0.7 people per minute. In my country, 1.8 million people die from SD every year, with an average of 3.4 people per minute. SD is divided into two categories: sudden cardiac death (60%-75%) and non-sudden cardiac death (25%-40%). Sudden Cardiac Death (SCD) refers to sudden death caused unexpectedly by cardiac causes. SCD is an important life-threatening factor in western developed countries. According to incomplete statistics from the American...

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Problems solved by technology

After literature search, no relevant research reports were found, so these six high-frequency waves are collectively referred to as ventricular repolarization high-frequency waves (such as figure 1 Shown) Comparing the ventricular repolarization high-frequency wave with the QT variable and T wave microvolt-level amplitude alternately, it will be found that: in the time direction, the amount of information provided by the ventricular repolarization high-frequency wave far exceeds that of the QT variable, and there are more details. The interval measurement error can be controlled within ±1ms; in the amplitude direction, since the low-frequency T-wave and U-wave interference have been filtered out of the high-frequency wave of ventricular repolarization, the waveform resolution and amplitude measurement accuracy are both T-wave Microvolt-level amplitude alternation is unattainable

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