Body surface electromyographic signal detection combined symmetrical three-electrode

Abstract

The invention discloses a body surface electromyographic signal detection combined symmetrical three-electrode. The symmetrical three-electrode comprises a differential detection electrode pair and areference electrode; the differential detection electrode pair is a silver / silver chloride electrode, and the reference electrode is a square self-adhesive patch electrode with two circular through holes. The radiuses of the two through holes in the reference electrode are slightly greater than the radius of a metal male buckle of the differential detection electrode pair, and the centers of the two through holes of the reference electrode and the center point of the reference electrode are on the same horizontal line and are equidistant; the metal male buckles of the differential detection electrode pair respectively penetrate through the two through holes in the reference electrode, and the circle centers of the metal male buckles coincide with the circle centers of the through holes. Ametal male buckle is also arranged on the back surface of the reference electrode and is connected with the reference electrode; and the three electrodes are mutually insulated. The combined symmetrical three-electrode can reduce interference of various common-mode signals, realize stable and flexible detection of human body surface electromyographic signals, and have the advantage of simple application.

Description

technical field [0001] The invention relates to biological detection electrode technology, in particular to a body surface myoelectric signal detection combination symmetrical three electrodes. Background technique [0002] At present, various medical electronic devices have been widely used in the field of diagnosis and treatment, especially in the detection and analysis of nerve and muscle diseases and the functional reconstruction of paralyzed limbs. The detection electrode is a part of the electronic device, which is used as a conductive medium, which is equivalent to the connector between the living body and the circuit system. The electrode proposed in this patent is a human body surface detection electrode, which is applied to the collection of superficial myoelectric signals on the body surface. [0003] Myoelectric signal is a bioelectric signal formed by the potential difference formed by muscle fibers due to the movement of conductive ions in the body when the hu...

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