Ren Pengyu, Zhang Qing, Han Peng, Xu Songhua, Xu Chuangxin, Li Zongfang, Yang Jun
Institute of Medical Artificial Intelligence，the Second Affiliated Hospital of Xi'an Jiaotong University，Xi'an，710061，China.
Department of Neurosurgery，the Second Affiliated Hospital of Xi'an Jiaotong University.
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2022 Sep;36(9):690-697. doi: 10.13201/j.issn.2096-7993.2022.09.008.
To complete the working principle design and prototype construction of the Chinese multichannel vestibular prosthesis （CMVP） with independent intellectual property rights, and verify its working performance, so as to lay the foundation for the clinical promotion and application of CMVP. On the basis of previous research, the working principle of CMVP was constructed based on the information encoding principle of vestibular nervous system, and the circuit was designed according to the principle. Then, appropriate electronic components and software systems were selected to construct a CMVP prototype according to the design. Finally, the input and output characteristics of the CMVP prototype were verified through the performance test. In the present study, a block diagram of the working principle of the CMVP was successfully designed and drawn, and the working principle was explained in detail according to the block diagram. Further, the circuit diagram of the CMVP was designed and drawn based on the working principle, then the selected electronic components and software systems were combined one by one to complete the construction of a prototype. Finally, the performance test for the prototype was completed, which showed that all stimulus electrodes of the prototype could output biphasic pulse current, and the frequency of biphasic pulse current was modulated by the spatial rotation data input sensed by a motion sensor. The working principle and circuit design of the CMVP are reasonable; the CMVP prototype in China has been successfully constructed; the spatial rotation motion sensing input and the modulated pulse current output are stable and reliable.
完成具有自主知识产权的中国多通道前庭假体（CMVP）的工作原理设计与样机制作，并验证其工作性能，为CMVP的临床推广应用奠定基础。在前人研究的基础上，基于前庭神经系统的信息编码原理构建CMVP的工作原理，并据此设计电路。然后，根据设计选择合适的电子元件和软件系统构建CMVP样机。最后，通过性能测试验证CMVP样机的输入输出特性。在本研究中，成功设计并绘制了CMVP工作原理的框图，并根据框图详细解释了工作原理。此外，基于工作原理设计并绘制了CMVP的电路图，然后将所选电子元件和软件系统逐一组合完成样机制作。最后，完成了对样机的性能测试，结果表明样机的所有刺激电极均可输出双相脉冲电流，双相脉冲电流的频率由运动传感器感知的空间旋转数据输入进行调制。CMVP的工作原理和电路设计合理；中国的CMVP样机已成功制作；空间旋转运动传感输入和调制脉冲电流输出稳定可靠。
