It is suitable for neurosurgery, microsurgery, ophthalmology and other departments. It is an auxiliary equipment for surgery. Increasing the stability of the operation can effectively relieve the fatigue of the doctor during the operation, thereby greatly improving the comfort of the operation and ensuring the accuracy of the operation. Electric adjustment is convenient and quick, and the rechargeable battery can effectively get rid of the shackles of wires, and the position can be adjusted at will.