A dual-purpose electrode and a device using the dual-purpose electrode to realize surface myoelectricity extraction and transcutaneous electrical stimulation

Abstract

A dual-purpose electrode and a device using the dual-purpose electrode to realize surface myoelectricity extraction and percutaneous electrical stimulation relate to the field of biomechanical integration. In order to solve the problems of mutual interference between the existing transcutaneous electrical stimulation and surface electromyographic signal extraction, and the complex structure cannot effectively use the skin area and the electromagnetic compatibility is not strong, but also to meet the requirements of surface electromyographic extraction and transcutaneous electrical stimulation. device requirements. It includes N electrode units, and each electrode unit is a button-type electrical connection contact, a non-woven fabric layer, an electrode layer and a conductive adhesive layer from top to bottom; the electrode layer includes a main electrode and a reference electrode; the reference electrode and the main electrode The electrodes are coaxial, and the reference electrode surrounds the main electrode; and the distance between the reference electrode and the main electrode is 2 mm to 3 mm, the device meets the requirements for a device for surface myoelectric extraction and transcutaneous electrical stimulation, and the device The method is simple and the application range is wide. The invention is suitable for physical therapy rehabilitation of muscles and human-computer interaction of myoelectric artificial limbs.

Description

technical field [0001] The invention relates to the field of biomechanical integration. Background technique [0002] As a commonly used means of muscle movement monitoring, surface electromyography has the advantages of accurate monitoring, non-invasiveness, and low cost. It is widely used in muscle pathological diagnosis, prosthetic control, and neuromuscular physiotherapy rehabilitation. Since the EMG signal is relatively weak, the electrochemical reaction between the electrode and the skin, the impedance change of the electrode-skin interface, and the movement of the electrode often cause large artifact noise. In order to reduce these artifact noise, the EMG electrode should have Stable electrochemical characteristics and electrode-skin impedance, and can be bonded to the skin surface with a certain adhesion. [0003] Transcutaneous electrical stimulation is an electrical stimulation method that lays electrodes on the surface of the human skin to release current to stim...

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