1. National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu 610064, Sichuan, China
2. Department of Neurosurgery, West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041, Sichuan, China
3. Institute of Regulatory Science for Medical Devices, Sichuan University, Chengdu 610065, Sichuan, China