Motion artifact suppression method and twelve-lead wearable electrocardiogram monitoring equipment applying motion artifact suppression method

Abstract

The invention relates to a motion artifact suppression method for wearable electrocardiogram monitoring equipment. Two same electrocardio-electrodes SN and RA are respectively placed in the same position on the chest, in particular the second rib corresponding to the centre line of the right clavicle, to be in contact with skin, wherein the output of the electrocardio-electrode RA is used as a reference signal; the difference between the output of the electrocardio-electrode SN and the reference signal is amplified by a certain multiple to serve as a motion noise signal; the difference betweenthe output signals of the rest placement electrodes and the reference signal is amplified by the same amplification multiple to be subtracted from the motion noise signal; and the difference value isa real electrocardiosignal after motion artifacts are eliminated. The invention further provides twelve-lead wearable electrocardiogram monitoring equipment based on the motion artifact suppression method; the twelve-lead wearable electrocardiogram monitoring equipment comprises an underwear body, an electrocardiogram sensor and an electronic processing unit; the electrocardiogram sensor comprises ten electrocardiogram probes; a standard medical twelve-lead electrocardiogram can be obtained through combination; motion artifacts can be effectively suppressed; and the quality of electrocardiosignals is improved.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a motion artifact suppression method and a twelve-lead wearable ECG monitoring device applying the method. Background technique [0002] Cardiovascular disease is the most threatening disease to human life in modern industrial society. At present, the morbidity and mortality of cardiovascular diseases in my country are still on the rise. Cardiovascular diseases account for more than 40% of the residents' deaths from diseases, and are the first cause of death among residents in our country. According to the 2017 China Cardiovascular Disease Report, the number of patients with cardiovascular diseases in my country is as high as 290 million, of which the number of sudden cardiac death is as high as 544,000 per year. With the influence of factors such as population aging, the number of deaths from cardiovascular diseases will continue to rise. [0003] Cardiovascular diseases are very...

AI Technical Summary

Problems solved by technology

[0004] Wearable ECG monitoring devices are easy to use and can be used for a long time. They can be used for daily ECG monitoring of users and help detect abnormal ECG activities in time. However, there is a common problem with current wearable ECG monitoring devices: they are susceptible to motion Interference, there are obvious motion artifacts, and the collected ECG data is inefficient

However, there are still deficiencies in the above methods. In the first type of scheme, it is difficult to completely offset the relative motion between the electrode and the skin, and the potential difference generated by the deformation of the skin also brings motion artifacts; in the second type of scheme, the motion information is used as the accuracy of the reference signal. Not high, and during relatively large-scale exercise such as brisk walking and running, the ECG signal output by the electrodes is saturated by motion interference. Even if the subsequent processing algorithm eliminates the motion interference, the ECG signal is still distorted

Images