Neuroelectric regulation device for synchronous electroencephalographic detection and control method of system thereof

By employing a synchronous acquisition architecture with dual-ground system and electrical isolation in the neuroelectric modulation system, synchronous acquisition of neuroelectric modulation and EEG signals under high voltage is achieved, solving the problem that EEG signals cannot be effectively acquired when modulation is activated in the prior art, and supporting the assessment of neurological disease states and closed-loop modulation.

CN122297913APending Publication Date: 2026-06-30INST OF AUTOMATION CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-22
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing neuroelectric modulation systems suffer from high modulation voltage due to skin contact impedance when modulation is activated, which interferes with EEG signals and makes it impossible to effectively collect EEG signals. In particular, the modulation signal and coupling interference are severe under high voltage, making it impossible to assess the EEG state and disease changes in real time.

Method used

The synchronous acquisition architecture employs a dual-ground system and electrical isolation. The neuromodulation subsystem and the EEG acquisition subsystem are completely isolated, each using an independent ground reference system. They communicate via high-speed USB isolation and parallel port isolation modules to achieve electrical independence between acquisition and modulation. The acquisition channel and modulation channel are dynamically switched, and a high-precision current source circuit is used for control. The neuromodulation module and the EEG acquisition module are completely electricalally independent.

Benefits of technology

Under a neuroelectric modulation state of up to 30V, continuous and synchronous acquisition of EEG signals was achieved, breaking through the existing technical bottlenecks and realizing simultaneous modulation and acquisition of neuroelectric signals, supporting the assessment of neurological disease states and closed-loop regulation.

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Abstract

This application discloses a neuroelectromodulation device and its control method for synchronous electroencephalogram (EEG) detection. The neuroelectromodulation device includes: an EEG acquisition module configured for multi-channel EEG acquisition via a common electrode; a neuroelectromodulation module configured for multi-channel neuroelectromodulation operation via the common electrode; and an isolation module including a high-speed USB isolation submodule and a parallel port isolation submodule. The EEG acquisition module and the neuroelectromodulation module communicate through the isolation module. In response to the neuroelectromodulation module determining that a modulation signal with a predetermined high voltage will be output via a predetermined modulation channel in the multi-channel configuration, the neuroelectromodulation module activates the modulation component corresponding to the predetermined modulation channel, and the EEG acquisition module synchronously deactivates the analog switch corresponding to the predetermined modulation channel.
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