1. National Engineering Research Center for Biomaterials, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
2. College of Biomedical Engineering, Sichuan University, 29# Wangjiang Road, Chengdu 610064, China
3. Sichuan Testing Center of Medical Devices, Sichuan Institute for Drug Control, 4# Xinye Road, Chengdu 611731, China
4. West China School of Medicine, West China Hospital, Sichuan University, 37# Guoxue Lane, Chengdu 610041, China
5. Department of Neurosurgery, West China Hospital, Sichuan University, 37# Guoxue Lane, Chengdu 610041, China
6. Department of Orthopedics, West China Hospital, Sichuan University, 37# Guoxue Lane, Chengdu 610041, China