Implantable multifunctional micro-needle array brain electrode

Abstract

The invention discloses an implantable multifunctional micro-needle array brain electrode which comprises an outer frame, a PCB (printed circuit board), an electrode bearing plate, electric pulse stimulating electrodes, brain electric detecting electrodes and electrochemical detecting electrodes. The electrode bearing plate is fixedly mounted on the lower surface of the outer frame, and the electric pulse stimulating electrodes, the brain electric detecting electrodes and the electrochemical detecting electrodes are mounted on the lower surface of the electrode bearing plate and are configured to form an electrode array; the tops of the electric pulse stimulating electrodes, the tops of the brain electric detecting electrodes and the tops of the electrochemical detecting electrodes are connected with the PCB by wires, and the PCB is fixed to the upper side of the outer frame in an adhered manner; big-end-up conical outer protective jackets wrap the electric pulse stimulating electrodes, the brain electric detecting electrodes and the electrochemical detecting electrodes, and medicine patches with the thicknesses ranging from 0.15 mm to 0.35 mm are attached to the bottoms of the outer protective jackets. The implantable multifunctional micro-needle array brain electrode has the advantages that influence of hair on detection results can be reduced; antibacterial inflammation diminishing effects can be effectively realized for pierced positions, and accordingly injury to scalps can be prevented.

Description

technical field [0001] The invention relates to brain electricity collection, in particular to an implantable multifunctional microneedle array brain electrode. Background technique [0002] In recent years, with the continuous development and maturity of micro-electro-mechanical systems (MEMS: Micro-Electro-Mechanical Systems) technology, the application range of micro-systems such as micro-electronic devices and micro-sensors has continued to expand, and has been widely used in civil, medical, military and other fields. . The research on needle-type microelectrodes based on micromachining technology has been developed rapidly. Microelectrode structures mainly include planar microelectrodes, heteroplanar microelectrodes, and microelectrodes that assemble planar microelectrodes into an array shape. These microelectrodes with different structures have their own characteristics. [0003] Traditional EEG signal acquisition equipment is based on wet electrodes. Before using t...

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Problems solved by technology

At the same time, hair is also easy to affect the use of electrodes. For penetrating electrodes, there is no good treatment for scalp wounds.

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