关键词: 实验动物, 兔, 神经再生, 面神经

Abstract: Abstract: To create experimental model for neurotropic regeneration research of the multi-branch facial nerve defect． Method Twelve rabbits were used in this study． The rabbit’s facial nerve was explored and cut near the crotch，leaving a 5 mm gap． Then，the gap was repaired by multi-branch chitosan chamber． 1，2，3，8，16，24 weeks later，ethology of the rabbit’s face was evaluated． Ｒesult Eleven rabbits were still alive，24 weeks after the operation． Swell or rejection was not found． Conclusion The experimental model is stable and reproducible． Tthe use of multi-branch chitosan conduits for nerve regeneration study is feasible．

Key words: experimental animal, rabbit, nerve regeneration, facial nerve