Signal generation and regulation of implantable nerve stimulator

In the treatment of nervous system diseases, implantable nerve stimulators have attracted more and more attention because of their obvious therapeutic efficacy and high safety. The generation and regulation of stimulus signals are the most important step in the design of an implantable nerve stimulator. The stimulation signals from the implanted nerve stimulator act directly on nerve cells. If the stimulus signal is not delivered accurately according to the set parameters, it will not only affect the therapeutic effect but also cause unpredictable malignant consequences. To generate stimulus signals that meet certain requirements, the different circuit structures need to be designed to be applied to the stimulators with different function types. In this paper, five types of stimulator circuits are introduced, and their strengths and weaknesses are analyzed based on the detailed introduction of the working principles of the different stimulator circuits, which might provide a theoretical and practical reference for future research.