Absorbable active core screw for femoral fracture and tibia fracture

The utility model provides an absorbable movable core screw nail used for femoral fracture and tibia fracture. The utility model belongs to an osteological clinic treating apparatus. The utility model comprises a hollow core screw nail (1) and an inner core (4), wherein, the hollow screw nail (1) is made from an absorbable ultrahigh molecular weight poly lactic acid biologic material, and the axial center part of the hollow screw nail (1) is in a cavity structure; a cavity (2) is extended from the front end part of a nail body to the rear end part of the nail body; the front part of the nail body is provided with screw threads (3), and the rear end part of the nail body is a polygonal body structure; the inner core (4) with a column-shaped structure is inserted into the cavity (2) of the hollow screw nail (1). The absorbable movable core screw nail used for femoral fracture and tibia fracture, which is put forward by the utility model, has better effect when used for the internal fixation of the femoral fracture and the tibia fracture; the nail body which is made from the absorbable ultrahigh molecular weight poly lactic acid biologic material can reliably fix the fracture and can slowly degrade and be absorbed after the fracture heals up without being taken out by a secondary operation, thereby, the utility model can reduce wounds in an operation, reduce and prevent femur head necrosis and other complications from occurring.