Self-adhesion fixed scalp electroencephalogram electrode and electroencephalogram signal acquisition method

Abstract

The invention discloses a self-adhesion fixed scalp electroencephalogram electrode and an electroencephalogram signal acquisition method. The scalp electroencephalogram electrode comprises a comb tooth electrode, and an adhesion medium capable of adhering the comb tooth electrode to the scalp is arranged on the surface, facing the scalp direction, of the comb tooth electrode. The electroencephalogram signal acquisition method comprises the following steps of S1, selecting the comb tooth electrode as the scalp electroencephalogram electrode; S2, adhering the adhesion medium to the collection surface; S3, before the coating medium is subjected to film formation, pushing aside the hair at the position of a to-be-detected brain area, placing a signal acquisition electrode in the to-be-detectedbrain area, slightly pressing the signal acquisition electrode to make full contact with the scalp, and enabling the signal acquisition electrode to be fixed to the scalp under the action of the adhesion medium; S4, starting to collect electroencephalogram signals and recording the electroencephalogram signals; and S5, after the acquisition work is finished, wetting and wiping with alcohol to enable the signal acquisition electrode to fall off from the to-be-detected brain area, and wiping the acquisition surface of the signal acquisition electrode with alcohol to completely remove the adhesion medium on the acquisition surface.

Description

technical field [0001] The invention relates to the technical field of EEG signal collection, in particular to a self-adhesive and fixed scalp EEG electrode and an EEG signal collection method. Background technique [0002] EEG is an electrophysiological monitoring method that records electrical activity in the brain, and is widely used in neuroscience, psychology, cognitive science, and the diagnosis of intracranial organic lesions in humans. It provides an effective reference for the diagnosis and treatment of epilepsy; the detection of sleep and wakefulness has also received more and more attention, and the intelligent application of brain-computer interface is becoming more and more important in the field of brain science. However, the discharge of neurons in the brain is relatively weak, and is often disturbed by external or other electrical signals from the body. The contact impedance between the electrodes and the scalp reduces the signal-to-noise ratio of the EEG sig...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a self-adhesive and fixed scalp EEG electrode and an EEG signal acquisition method for the above-mentioned defects in the prior art, so as to solve the existing wet electrode acquisition signal in the prior art, which requires wearing an EEG cap, injecting Conductive paste, there are problems in later cleaning and long-term wearing; dry electrodes need a certain pressure from the EEG cap to better improve the quality of signal acquisition; wearing the EEG cap to collect signals has a fixed position, and there is a position deviation in the brain area to be collected; EEG The cap covers a wide range of areas on the scalp, but the actual recording does not require signals from all brain regions, and there is a problem of material waste; the present invention does not require a fixed electrode device such as an EEG cap, and directly places the electrodes on the brain area to be collected. area for quick and easy wearing of the electrodes