Brain electrode needle body, brain electrode unit and arrayed brain electrode

Abstract

The application proposes a brain electrode needle body, the brain electrode needle body (12) is a cone as a whole, the brain electrode needle body (12) includes: a hydrogel layer (121), the hydrogel layer (121) comprises hydrogel and conductive polymer; Adhesive layer (122), described adhesive layer (122) is positioned at the outer layer of described hydrogel layer (121), and described adhesive layer (122) comprises dopamine; and a piercing layer (123), the piercing layer (123) is located on the outer layer of the adhesion layer (122), and the piercing layer (123) includes hyaluronic acid.

Description

technical field [0001] The application belongs to the field of medical devices, and in particular relates to a brain electrode needle body, a brain electrode unit and an arrayed brain electrode. Background technique [0002] Electroencephalography (Electroencephalogram, EEG), as an effective imaging method to record the electrochemical activities generated by the neurophysiological responses of the brain, is widely used in the field of brain-computer interface. An EEG signal is a weak voltage signal that can be measured by placing brain electrodes on the surface of the scalp. Currently commonly used EEG electrodes are mainly divided into wet electrodes, semi-dry electrodes, and dry electrodes. [0003] Wet electrodes need to use conductive paste in the process of EEG acquisition, but the use of conductive paste will cause many problems, such as the distortion of EEG acquisition signals caused by the dryness of conductive paste, conductive paste may cause skin allergies, and...

AI Technical Summary

Problems solved by technology

[0011] This application aims to propose a brain electrode needle body, a brain electrode unit and an arrayed brain electrode to solve at least one problem in the prior art

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