Skin-like multi-channel surface electromyography electrode on basis of mesh structural designs and method for preparing skin-like multi-channel surface electromyography electrode

Abstract

The invention discloses a skin-like multi-channel surface electromyography electrode on the basis of mesh structural designs and a method for preparing the skin-like multi-channel surface electromyography electrode. Devices of the skin-like multi-channel surface electromyography electrode include electrodes, interconnection wires, lead interfaces, a substrate and an encapsulating layer. The skin-like multi-channel surface electromyography electrode and the method have the advantages that ultrathin mesh structures are periodically arranged to form the devices except for the lead interfaces, thetotal thickness of the devices is only a few micrometers, the devices are excellent in extensibility and complex curved surface and irregular shape adaptability, the mechanical properties of the devices are similar to the mechanical properties of the skin of human bodies, and the devices can adaptively tightly cling to the surface of the skin just like tattoo or stickers only by the aid of the effect of Van der Waals' force between the devices and the skin in measurement procedures, and can deform along with deformation of the skin without failure; extensible flexible electronic technologiesand the traditional micro-nano machining processes are compatible with one another to prepare the skin-like multi-channel surface electromyography electrode, the channel numbers of the sensing electrodes can be extended according to requirements, and accordingly the skin-like multi-channel surface electromyography electrode and the method are favorable for large-scale and high-density electromyography signal acquisition.

Description

Technical field [0001] The invention relates to a skin-like multi-channel surface muscle electrode designed based on a mesh structure and a preparation method thereof, belonging to the fields of biological surface myoelectric signal collection and biomedical device manufacturing, wearable and malleable flexible electronic devices and mobile medical devices. Background technique [0002] Surface EMG signal is a low-frequency weak signal generated during human muscle activity. It contains a large amount of information related to human physiological health. It is used to evaluate the local fatigue and muscle strength of muscle activity, accurately locate muscle strains, and muscle rehabilitation treatment. The field of muscle medical diagnosis, sign language gesture recognition, mobile Internet of Things and other aspects of human-computer interaction all play a key role. The current collection of surface EMG signals is focused on the use of traditional conductive silver glue rigid ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a skin-like multi-channel surface muscle electrode based on network structure design and its preparation method. Including biological tissue or skin affinity and poor quality of fit, the problems to be solved include but are not limited to: (1) The measuring electrode adopts an ultra-thin mesh structure design, and the measuring electrode designed and prepared by the present invention adopts an ultra-thin mesh structure Design, the device is very soft and has excellent stretchability, it can be self-adaptive and tightly fitted on complex and irregular surfaces like "tattoos" or "stickers", such as human skin, and can withstand the natural activities of human skin Complex deformations during the process, improving measurement comfort

Therefore, it can be used for long-term wearable and online monitoring of human surface electromyography

Images