Miniature wireless optical genetic stimulation brain-computer interface system capable of being implanted for long time

Abstract

The invention belongs to the technical field of brain-computer interfaces, and particularly relates to a miniature wireless optical genetic stimulation brain-computer interface system capable of being implanted for a long time. The system is composed of a miniature wireless optical genetic chip, an external control system and an external display system. The system can realize long-term implantation of an in-vivo optical genetic stimulation brain-computer interface system, online acquisition and analysis of electroencephalogram information, wireless real-time stimulation and parameter adjustment of optical genetic stimulation signals and analysis of optical genetic stimulation results, wherein the wireless real-time stimulation and parameter adjustment of optical stimulation are based on the analysis results of the acquired electroencephalogram signals. An MCU and an FPGA module integrated in an external control system of the system enable the system to have a better data processing speed and carry out complex electroencephalogram signal processing work, and related parameters of optical genetic stimulation can be controlled in real time; the display system can store and display the electroencephalogram signals, the light stimulation control parameters and the system electric quantity, further research on electroencephalogram activity is achieved, and the nerve regulation effect of light stimulation is observed.

Description

technical field [0001] The invention belongs to the technical field of brain-computer interface, in particular to a long-term implantable miniature wireless optogenetic stimulation brain-computer interface system. Background technique [0002] Brain-computer interface is a new type of human-computer interaction method and technology that establishes connections between the brain and computers or other devices. The current main application scenarios of brain-computer interfaces are in the fields of medical health, physical energy efficiency, aerospace, and intelligent transportation. Directly exporting the signal of the neural signal readout circuit to the external device through the data cable will expose the wound and increase the risk of infection. Therefore, the wireless communication and wireless charging functions applied to the brain-computer interface can realize the long-term full implantation of the brain-computer interface chip, and can realize the long-term real-...

AI Technical Summary

Problems solved by technology

[0004] There are many problems in the existing optogenetic-based brain-computer interface system, either it does not integrate wireless charging and wireless transmission functions and cannot achieve long-term implantation, or it can only perform light stimulation and EEG recording, and does not use EEG recording The results of the analysis are used to feed back the light stimulation, or the design volume is too large, and it is easy to cause damage after implantation

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