Intramedullary repositor for fracture of long bones of arms and legs

Abstract

The invention provides an intramedullary repositor for fracture of long bones of arms and legs, and belongs to the technical field of medical equipment in an orthopedics department. The intramedullary repositor is used for quick reposition on fracture of long bones which move sideward. According to the technical scheme, a reposition rod of the intramedullary repositor is positioned in a cavity of an outer sleeve; one side of the rear of a reposition head is connected with the inner wall of the outer sleeve through a fixing shaft; the other end of the rear of the reposition head is connected with the front end of the reposition rod through a rotating shaft; the front of the reposition head extends out of the front end of the outer sleeve; the rear end of the reposition rod is connected with a pull-and-push handle; and a wire guiding hole is formed in a wall on the lower portion of the outer sleeve and is a through hole formed along the axis of the outer sleeve. The outer sleeve is planted in a medullary cavity in one end of a long fractured bone; the reposition head enters a medullary cavity opposite to a fractured end; and the pull-and-push handle at the rear end of the reposition rod is pulled, so that the reposition head shifts the opposite medullary cavity, and reposition on the opposite fractured bone is realized. The intramedullary repositor is simple in structure and convenient to use; quick reposition on the long fractured bones which move sideward or rotate can be realized; and the reposition accuracy and the surgery quality are improved.

Description

technical field [0001] The invention relates to a device for resetting long bone fractures of limbs, and belongs to the technical field of orthopedic medical devices. Background technique [0002] In orthopedic treatment, long bone fractures of extremities are common clinical injuries. There are two main surgical options for treating long bone fractures of extremities: open reduction and internal fixation and closed reduction and internal fixation. [0003] The advantage of open reduction and internal fixation is that fracture reduction can be performed under direct vision, the quality of fracture reduction is high, and then bone plate or intramedullary nail is used for fixation; the disadvantage is that open surgery is required, the surgical trauma is large, and the patient has a lot of blood loss , The hematoma around the fracture containing factors that promote fracture healing is removed during the operation, which is not conducive to fracture healing; in addition, becau...

AI Technical Summary

Problems solved by technology

Therefore, in orthopedic surgery, the use of closed reduction to treat long bone fractures of the extremities is the direction of development in the future, but at present, in the operation process of closed reduction, it is difficult to reduce fractures with lateral displacement, and there is no special equipment, which affects The accuracy of reduction and the quality of surgery have become difficult problems in the treatment of long bone fractures of limbs, which have not been solved so far

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