| Objective Brachial plexus and peripheral nerve injury are common in clinical disease, with regard to regeneration of post trauma, through a great quantity of research, people knew some medicine, hormone, growth factor could promote it, some surgery methods like muscle and vascular nerve transplantation could restore it, but its slowly growth result to bad effect. At the beginning of last century, fundament experiments and clinical application had conformed that electrical stimulation treatment make for histo-regeneration, Shander showed electrical stimulation treatment raised osteanagenesis 20%, Takano showed electrical stimulation treatment restored premaxillare bone of mouse. After discovered electrical stimulation could prove bone healing and successfully used in clinical, people began to study whether electric stimulation could effect nerve which was conduct carrier of bioelectricity ion. In age late 70 earlier 80 of last century, people found myelognesis was impact by electric field, so electric stimulation promote nerve regeneration became hot sport of research. Large numbers of experiments internal and external had confirmed both direct current and square pulse of distal end cathodal could improve peripheral nerve regeneration, because it could speed up transmigration, creeper, growth and development of cell Schwann, derivate growth of nerve fiber; it also increased blood capillary of epineurium, brood blood vessel, amendment ischemic of impaired nerve, it still could accelerate Wallerian... |