Inverse stretching type broken intramedullary nail extractor

Abstract

The invention relates to the technical field of medical instruments, in particular to an inverse stretching type broken intramedullary nail extractor. The inverse stretching type broken intramedullary nail extractor comprises a sliding weight assembly, a working sleeve and an operating marrow core. The working sleeve is used for penetrating through an inner cavity of a broken intramedullary nail to reach the farthest end of the broken intramedullary nail. The operating marrow core is arranged in the working sleeve in a sliding mode, and an elastic clamping jaw for hooking the outer wall of the farthest end of the broken intramedullary nail is arranged at the free end of the operating marrow core. The sliding weight assembly is detachably installed at the end, away from the broken intramedullary nail, of the working sleeve. The working sleeve stretches into a marrow cavity and penetrates through the broken nail cavity to reach the farthest end of the broken nail, the operating marrow core stretches out of the working sleeve in a sliding mode, the elastic clamping jaw stretches out of the working sleeve and then pops up to hook the outer wall of the farthest end of the broken nail, and the sliding weight assembly stretches outwards to achieve extraction of the broken intramedullary nail. The inverse stretching type broken intramedullary nail extractor is simple in structure and high in operability, the clinical operation time is shortened, iatrogenic harm generated during operation is reduced, and the radiation damage to medical staff is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an anti-tension intramedullary nail broken nail extractor. Background technique [0002] Fracture is a common surgical injury. Reduction, fixation, and healing are the trilogy of fracture treatment, and fixation is the connecting link between reduction and healing. Good fixation not only consolidates the reduction effect, but also promotes the speed and quality of healing. Strong fracture fixation can reduce the pain of the wounded, prevent the aggravation of the injury, prevent shock, protect the inner soft tissue, prevent further damage to blood vessels and nerves, facilitate clinical care, and minimize the disability rate. [0003] The intramedullary nail is an orthopedic internal fixation medical device commonly used in the treatment of extremity fractures. The locking screw hole is provided with a longitudinal groove on the surface of the intramedullary nail rod. ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an anti-tension type intramedullary nail broken nail remover, which solves the problem that the intramedullary nail removal tool in the prior art is complicated to operate, has large use limitations, often cannot be removed, and the health of the medical staff is damaged. High Risk of Injury Technical Issues

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