集成神经刺激与采集的模拟前端电路及脑机系统
By employing alternating grounding and synchronous switching of signal channels in the invasive neural stimulation and acquisition system, the problem of interference between stimulation and acquisition signals was solved, achieving high-fidelity neural signal acquisition and ensuring the safety of the stimulation process and the accuracy of the acquisition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANGZHOU QINGSHI YONGJUN MEDICAL EQUIPMENT CO LTD
- Filing Date
- 2026-06-22
- Publication Date
- 2026-07-17
AI Technical Summary
In invasive neural stimulation and acquisition systems, signal interference between stimulation signals and acquisition signals is difficult to suppress effectively, resulting in the system's inability to achieve high-precision neural signal acquisition.
An analog front-end circuit integrating neural stimulation and acquisition is adopted. By alternately grounding the two stimulation electrodes during the stimulation cycle and synchronously switching the on and off states of the signal channel in the signal acquisition module, the stimulation signal is prevented from coupling to the acquisition path. The H-bridge switching unit and dummy load unit are used to suppress artifact interference.
It effectively suppressed the interference of stimulation signals on the acquired signals, ensuring high-fidelity neural signal acquisition under conditions of synchronous stimulation and acquisition, and improving the safety and accuracy of acquisition.
Smart Images
Figure CN122399252A_ABST