Snakelike arm for clamping and fixing surgical instrument

The utility model discloses a snakelike arm for clamping and fixing surgical instruments. The snakelike arm comprises a base, a driving device arranged in the base, a locking device arranged outside the base, a snakelike arm body connected with the driving device and a clamping manipulator connected with the end of the snakelike arm body. The driving device comprises a motor assembly; the lead screw assembly is connected with the motor assembly; the bearing seat assembly is used for mounting the lead screw assembly; the sliding seat assembly is matched with the lead screw assembly; and the steel wire locking mechanism is arranged on the sliding seat assembly and is fixed with the steel wire on the snake-shaped arm. The snakelike arm can freely move in any all directions and can be freely locked at any position, and the free state and the locking state can be switched through one-key operation. Adjustment is convenient and free of any external interference, and manual supporting is completely replaced. 本实用新型公开