Electroencephalogram cap for multi-ensuring contacts in close contact with scalp using socket structure

Abstract

The invention relates to an electroencephalogram cap for multi-ensuring contacts in close contact with scalp using a socket structure. The electroencephalogram cap has certain random error for acquisition of an electroencephalogram signal. The electroencephalogram cap comprises a hemispherical electroencephalogram cap main body, electrode holders, meridian fixing locks, a chin fixing band and electrode pins, wherein the electrode holders are fixed on the main body according to electrode positions F3, F4, C3, C4, P3, P4, O1 and O2 in an international 10-20 system; the meridian fixing locks are positioned below ears on the two sides; the chin fixing band is used for connecting the meridian fixing locks on the two sides; and the electrode pins are matched with the electrode holders for use. The main body is constituted by an elastic fabric. Meridians are arranged in the electroencephalogram cap; the two ends of the meridians are fixed on the meridian fixing locks on the two sides of the electroencephalogram cap main body; and each meridian passes through two corresponding electrode holders on the left side and the right side of a head. The electroencephalogram cap is easy and convenient to use and operate; the defect of complex operation of the electroencephalogram cap applying conductive paste existing in the prior art is overcome; and the preparation work for electroencephalogram acquisition can be quickly finished.

Description

technical field [0001] The invention belongs to the field of biomedicine, and in particular relates to an EEG cap which adopts a socket structure and has multiple guarantee contacts in close contact with the scalp. Background technique [0002] With the development of bioelectronics and computer technology, some achievements have been made in the application research based on cortical EEG data. For example, epilepsy diagnosis based on EEG, and brain-computer interface applications such as brain-computer interface based on cortical EEG. At present, the EEG cap is still an important part of the EEG acquisition device, which is related to the acquisition performance of cortical EEG data and will directly affect the subsequent analysis and processing. [0003] There are currently two types of EEG caps commonly used: one is the elastic strip mesh EEG cap (91229754.9), such as figure 1 As shown, this EEG cap is composed of a mesh structure of elastic strips. During use, people ...

AI Technical Summary

Problems solved by technology

Therefore, it takes a long time to prepare for use, and it is difficult to control the injection amount of conductive paste. When the injection amount is too large, the contact area between the conductive paste and the scalp is too large, so that the collected signal contains too much interference from other electrode point signals; When the amount is not enough, the impedance between the electrode and the scalp is too high, and it will not be able to effectively collect EEG signals

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