Bone cement injection device for repairing head contour defects

The utility model discloses a bone cement injection device for repairing head contour defects, which comprises an injection pipe, a condensate storage pipe is sleeved on the periphery of the injection pipe, and a liquid injection head is arranged on the left upper side of the condensate storage pipe; the mini peristaltic pump is fixed on the left side of the condensate storage pipe through a fixing frame, a screw rod and a nut; the liquid outlet pipe is connected between the liquid injection head and a liquid guide head of the mini peristaltic pump through a first elbow and a sunk screw, and the liquid suction pipe is connected with a liquid inlet head of the mini peristaltic pump through a second elbow; the liquid discharge head is arranged on the right lower side of the condensate storage pipe; and the piston rod is slidably connected into the injection pipe, and a push-pull block is fixedly connected to the top of the piston rod. Through the arrangement of a liquid injection head, a liquid outlet pipe, a l