Device for mending skull base defects

The invention belongs to the medical equipment field and especially relates to a device for mending skull base defects. An existing mended skull base defect device is easy to cause damages to blood vessels or other brain tissues in a cranial body during usage, and operation time is long and usage is not convenient. Aiming at the above problems, a solution scheme is characterized in that a first fixation plate located in the cranial body around a defective cavity to be mended is included; one side wall of the first fixation plate, which is close to the inner wall of the cranial body, is provided with a placing groove; the middle position of the bottom end side wall of the placing groove is provided with a threaded rod; one end of the threaded rod is extended to the external portion of the cranial body; folding plates which are folded in the placing groove when not in use are hinged to the side walls of the placing groove; one end of each folding plate, which is far away from a hinged position, is provided with