Long bone fracture intramedullary repositor capable of automatically feeding wire

Abstract

An intramedullary resetter for long bone fractures of extremities that can automatically feed wires belongs to the technical field of orthopedic medical devices, and is used for rapid reduction and wire feeding of long bone fractures with lateral displacement. The technical solution is: the front end of the reset rod can pull the reset head to rotate along the fixed axis, the rear end of the reset rod is connected with the knob, the guide wire is passed through the guide wire tube, and there is a guide wire push plate and a wire feed handle at the rear of the guide wire tube. The wire guide push plate can be pushed for wire feeding operation. The reset head of the present invention enters the medullary cavity on the opposite side of the broken end of the fracture, and turns and pulls the knob at the rear end of the reset pull rod, so that the reset head moves the opposite side of the medullary cavity to reset the fractured bone on the opposite side. The wire is sent into the medullary cavity, and the supporting tools of the intramedullary nail are used for reduction and fixation. The invention can quickly reset the long bone fractures with lateral displacement and rotational displacement, and the guide wire is fast, stable and easy to control, improves the accuracy of reset and operation quality, and solves the problem of manual wire feeding.

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. The traditional surgical schemes for long bone fractures of extremities mainly include open reduction and internal fixation and closed reduction and internal fixation. 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. The advantages of closed...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an intramedullary reducer for long bone fractures of limbs that can automatically feed wires. This reducer can quickly and minimally invasively reset long bone fractures with lateral displacement, improving the accuracy and Surgical quality, and automatic wire feeding can be completed at the same time, avoiding the disadvantages of slow wire feeding speed and unstable wire feeding length caused by manual wire feeding

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