Neurosurgical posterior cranial distraction and drainage device

The invention discloses a neurosurgical posterior cranial distraction and drainage device, and specifically relates to the technical field of posterior cranial distraction and drainage. The neurosurgical posterior cranial distraction and drainage device includes a fixing clip, and a distraction mechanism and a drainage mechanism are arranged at the top end of the fixing clip; the distraction mechanism includes a fixing table, a disc is arranged at the top end of the fixing table, and a U-shaped seat is fixed to the top of the disc and internally provided with a movable plate; the drainage mechanism includes a box body and a collection box, the collection box is fixed to the front end of the box body, a miniature water pump is fixed to the top end of the box body, a first branch pipe is fixed to the top end of the miniature water pump, a second branch pipe is arranged at the top end of the collection box, a header pipe is arranged at the top end of the second branch pipe, and an anti-blocking assembly is fixed