Flexible dry electrode, manufacturing method thereof, and biopotential collection system

Abstract

Embodiments of the present disclosure provide a flexible dry electrode, a manufacturing method thereof, and a biopotential collection system. The flexible dry electrode includes a flexible packaging layer and a plurality of electrode conductors. The flexible encapsulation layer includes a first surface and a second surface opposite to the first surface, wherein the first surface is provided with a plurality of grooves. Each of the electrode conductors is respectively arranged in a corresponding groove, wherein at least one electrode conductor is hollowed out. By making the electrode conductor into a hollow shape, the electrode conductor is easier to deform. On the one hand, it can reduce the influence of bending on the electrode conductor, thereby increasing the service life of the dry electrode; on the other hand, it can improve the electrode fit, thereby Increased wearing comfort.

Description

technical field [0001] Various embodiments of the present disclosure relate to the technical field of biomedical engineering, and more specifically relate to a flexible dry electrode, a method for manufacturing the flexible dry electrode, and a biopotential acquisition system. Background technique [0002] With the continuous in-depth development of medicine, neuroscience, cognitive psychology and artificial intelligence research, EEG signals are being increasingly applied to medical testing, clinical diagnosis and emerging brain-computer interface fields. As a direct external representation of the central nervous system, EEG can reflect the activity status of different regions of the cerebral cortex, and can be used to detect people's physiological and psychological states and the interaction of brain regions with different brain functions; it can be used for brain fatigue, stroke, and brain death. It can provide diagnostic information such as the state of the brain; it can...

AI Technical Summary

Problems solved by technology

The traditional wet electrode has less electrode noise, but its wearing process is cumbersome, and with the volatilization of water in the conductive medium, its impedance will become larger, resulting in unstable electrode impedance, which is not conducive to the acquisition of EEG signals

Traditional rigid dry electrodes are easy to wear, but they cannot adapt to changes in the curvature of the human head, resulting in a decrease in the effective contact area and an increase in impedance, and due to the rigidity of the electrode, the pressure of the electrode on the head becomes uneven and comfortable The accuracy is poor, and wearing it for a long time will even affect the wearer's action behavior, which is not conducive to the collection of EEG signals

Images