Flexible graphene electroencephalogram capacitive electrode capable of inhibiting motion artifacts

Abstract

The invention provides a flexible graphene electroencephalogram capacitive electrode capable of inhibiting motion artifacts. The electrode comprises a substrate player, a fabric conductive layer, a first motion artifact inhibition layer, a filler layer, a second motion artifact inhibition layer, a touch surface layer and an insulated shielding layer, wherein flexible fabric forms the substrate layer; conductive cloth forms the fabric conductive layer; conductive sponge and conductive fabric form the first motion artifact inhibition layer; an insulated rubber plate forms the filler layer; the conductive cloth and the conductive sponge form the second motion artifact inhibition layer; a graphene coating forms the touch surface layer; insulated fabric forms the insulated shielding layer. The electrode is an electroencephalogram dry electrode according with a capacity coupling principle, a flexible electrode material is adopted, accordingly, no irritation and harm are caused to skin, and the electrode can be worn for a long time.

Description

technical field [0001] The invention belongs to the field of medical equipment (apparatus) / electroencephalogram electrodes, and in particular relates to a graphene flexible brain capacitive electrode for suppressing movement artifacts. Background technique [0002] Electroencephalogram (EEC) is a direct external representation of the central nervous system, which can detect the activity status of different regions of the cerebral cortex, and reflects the human physiological and psychological state and the brain region interaction mode of different brain functions. At the same time, EEG can provide diagnostic information for epilepsy, dementia, tumors and other brain diseases or brain death. [0003] EEG is collected by EEG electrodes. According to whether conductive gel is used, EEG electrodes are mainly divided into wet electrodes and dry electrodes. In traditional medical treatment, wet electrodes are commonly used to detect EEG, and the subject needs to apply a conducti...

AI Technical Summary

Problems solved by technology

The disadvantage of the wet electrode is that its preparation is complicated, and the conductive silver glue will gradually dry out over time, causing measurement errors, easily causing skin allergies, affecting comfort, and not suitable for long-term monitoring

This kind of electrode device is complicated, and it often needs the assistance of professional medical staff when detecting EEG, and it is not suitable for the tester to wear it for a long time in daily life

[0009] Existing dry electrodes can monitor the EEG signals in the static state of the human body for a short time, but cannot meet the motion artifacts caused by limb movement or people in motion, nor can they be worn for a long time in daily life.

Nowadays, EEG stem electrodes are mostly made of rigid materials such as metal, and the electrodes cannot fit the scalp well, which not only affects the wearing comfort, but also easily causes motion artifacts

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