Abstract: Spinal cord injury is very high morbidity trauma, seriously affecting the survival and health of patients. To establish a standard animal model has a great significance for studying SCI pathogenesis and pathological changes. A spinal cord injury device for experimental animal was presented in this paper. It can implement fixed-point and fixed-quantity impact by new design. It also can create many animal models of different levels injury. More importantly, it has many advantages such as simple to operate, free from human disturbance, high accuracy and reproducibility. Finally, some existing constraints and challenges about the animal spinal cord injury models made by the device were discussed.

Key words: spinal cord injury, animal models, impact device