Fully Implantable Neural Stimulator with Variable Parameters

Neural implantable systems have promoted the development of neurosurgery research and clinical practice. However, traditional tethered neural implants use physical wires for power supply signal transmission, which many restrictions on implant targets. Therefore, untethered, wireless, controllable stimulation has always been widely recognized as engineering goal implants. In this paper, magnetically coupled resonant wireless transfer (MCR-WPT) technology is adopted to design manufacture a stimulator electrical experiment nerve repair. process device development, SCM technology, modulation, demodulation, supply, integration/packaging are used. Through experimental tests, can output single-phase pulse signals with variable frequency (1–20 Hz), duty cycle (1–50%), voltage. The average approximately 25 mW. minimum width 200 μs effective distance transmission 1–4 cm. perform low-frequency, safe stimulation.