Array type flexible surface electromyography electrode and preparation method thereof

Abstract

The invention discloses an array type flexible surface electromyography electrode and a preparation method thereof. The electrode is used for measuring the surface electromyography of a human body, and mainly comprises circular electrode plates, a flexible electrode substrate, insulating oil, medical proof fabric and conductive paste, wherein the circular electrode plates are arranged in an array manner, and depend on the flexible electrode substrate and the insulating oil; the medical proof fabric and the conductive paste are used for improving contact. The array electrode is characterized in that a plurality of electrode units are arranged into a space array, and has relatively good flexibility and adhesivity and relatively strong deformation adaptability. The space distance, the array arrangement and the impedance matching, which are adopted by the invention, can reduce the noise effectively and extract electromyographic signals to be convenient for subsequent signal processing. The electrode array, designed by the invention, can expand to more channels conveniently to obtain an electromyography image with enough space resolution, the adopted surface electrode array can avoid injury to the human body due to an insertion type electrode, and a multi-muscle-group image set can be obtained after enough electrode arrays are formed by expanding.

Description

technical field [0001] The invention belongs to the field of human body surface electromyography signal acquisition equipment manufacturing, in particular to an array type flexible surface electromyography electrode and a preparation method. Background technique [0002] Biomedical electrical signals are low-frequency weak signals in the background of strong noise, and are natural signals generated by human activities, which contain a large number of important information and physiological indicators of human activities. [0003] Electromyography (EMG), also known as electromyography, is an electrical signal curve recorded by electronic instruments when muscles are at rest or contracting. The motor unit action potential formed by multiple motor units participating in muscle activity passes through the muscle and subcutaneous tissue. It is formed by time-space superposition at the detection electrode after the filtering effect of the volume conductor composed of the skin and ...

AI Technical Summary

Problems solved by technology

[0007] However, the sEMG acquisition methods we can see at present are all composed of several channels, and the signal is rarely spatially filtered.

However, there is crosstalk in EMG signals, and the completion of a certain action often requires the cooperation of multiple muscle groups. Due to the local distribution of the existing electrodes, relevant information cannot be extracted, and it is impossible to use them for higher-level graphics research.

Images