PICC puncture fixing pad

The PICC puncture fixing pad comprises a box body, a motor is fixedly installed on the left side of the box body, the output end of the motor is fixedly connected with a right-hand and left-hand threaded rod, the two ends of the surface of the right-hand and left-hand threaded rod are both in threaded connection with threaded sleeves, and the surfaces of the threaded sleeves are movably connected with positioning plates. After the limbs of a patient are placed through the protective shell and the limiting plate, the patient needs to rotate outwards by a certain angle when puncturing the elbow when the PICC is placed, the elbow of the patient needs to rotate outwards by a certain angle when the patient punctures the elbow during operation, and when the skin is disinfected, the elbow of the patient rotates outwards to change. Therefore, an external controller is needed to start the motor to work, the motor starts the right-hand and left-hand threaded rod to work, the right-hand and left-hand threaded rod drives