Limb nursing fixator

The utility model discloses a limb nursing fixator which comprises a box-shaped base with an opening in the bottom, two arc-shaped limb clamping blocks are arranged above the box-shaped base, a concentric-square-shaped supporting plate is fixedly connected between the inner wall of the front side and the inner wall of the rear side of the box-shaped base, and a driving motor is fixedly installed on the left side of the bottom of the concentric-square-shaped supporting plate. And the front side of the driving motor is fixedly and electrically connected with a controller. Through matching arrangement of the thread driving guide assembly, the elastic guide assembly, the pressure measurement supporting assembly, the concentric-square-shaped seat, the concentric-square-shaped rod and the connecting rod, the two arc-shaped limb clamping blocks can be automatically controlled to clamp and fix the limbs of a patient in a pressure control mode during nursing work, time and labor are saved, the fixing efficiency is imp