Flexible electrode implantation system

Abstract

The invention provides a flexible electrode implantation system. The flexible electrode implantation system comprises a foldable flexible electrode and an implantation guiding instrument, wherein thefoldable flexible electrode is used for extracting the discharge activity of neurons; and the implantation guiding instrument comprises an implantation guiding platform and an implantation guiding column and is used for sending the flexible electrode into a target brain region. The flexible electrode implantation system adopts an implantation mode of combining the flexible electrode with an implantation tool. The prepared flexible electrode has good biocompatibility, and does not cause excessive signal acquisition of astrocytes and microglial cells on nerve cells; and meanwhile, the electrodehas enough flexibility to move along with the movement of brain tissues, so that the generation of motion artifacts is reduced. The prepared implantation guiding instrument is used for in-vitro auxiliary flexible electrode implantation, the implantation depth of the flexible electrode can be controlled, additional implantation damage cannot be caused, and the interface environment of electrode recording points cannot be influenced.

Description

technical field [0001] The invention relates to the fields of micro-nano processing technology and bioelectrical signal detection, in particular to a flexible electrode implantation system. Background technique [0002] The 21st century is the era of brain science. The study of cognitive activities such as human brain language, memory, thinking, learning and attention is one of the mainstream directions of contemporary scientific development. Neural electrodes provide a way to clarify the neural mechanisms of various brain cognitive activities. important tool. Traditional nerve microelectrodes are hard, which causes mechanical mismatch between nerve electrodes and nerve tissue, causing nerve tissue damage and continuous immune inflammatory response. The development of polymer materials makes flexible electrodes one of the mainstream directions of nerve electrodes. The flexible electrode made of low Young's modulus material can effectively improve the mechanical mismatch of ...

AI Technical Summary

Problems solved by technology

First, these methods require the use of invasive auxiliary implant tools, resulting in additional implant damage; second, the flexible electrodes cannot be spread out, which limits the effective range of the electrodes; third, the auxiliary implant materials affect the interface environment of the electrode recording point

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