Fetal head retractor instrument for advanced cesarean section

The utility model relates to a fetal head retractor instrument for advanced cesarean section. The retractor comprises a hollow hemisphere retractor, a traction rod and a traction rod handle, the hollow hemisphere drag hook is connected with a drag rod handle through a drag rod; wherein the front end of the traction rod is connected with the lock catch, a left spring bolt guide groove, a right spring bolt guide groove and a spring bolt rod guide groove are formed in the lock catch, a movably matched spring bolt is arranged in the spring bolt rod guide groove, a right spring bolt is arranged onthe spring bolt, the left spring bolt and the right spring bolt are matched with the side spring bolt guide groove, and the left spring bolt is matched with the left spring bolt guide groove; throughholes are distributed in the hollow hemisphere drag hook, a high-temperature-resistant rubber layer is compounded in the spoon-shaped interior of the hollow hemisphere drag hook, and the high-temperature-resistant rubber layer