Multifunctional intramedullary nail

Abstract

A multifunctional intramedullary nailcomprises an intramedullary nail main body, a slideway arranged inside the intramedullary nail main body, and an internal fixation structure which moves along theslideway and is used for preventing the intramedullary nail from shaking. The multifunctional intramedullary nail is characterized in that the intramedullary nail main body is arranged as a cavity intramedullary nail, and a plurality of windows are arranged on the cavity wall; the internal fixation structure comprises an extensible structure; the window includes a window for the extensible structure to extend; the slideway is integrally connected with the intramedullary nail main body and has consistent direction with the intramedullary nail; and the internal fixation structure is combined with the slideway. By setting the intramedullary nail with the windows, after the internal fixation structure reaches the window for the extension structure to extend, the extensible structure extends out of the window and is fixed on the inner wall of the bone marrow cavity, thereby preventing the intramedullary nail from shaking in the bone marrow cavity and avoiding unnecessary complications. Through the arrangement of the multiple windows, operations such as flushing, drug injection or material implanting can be carried out in the cavity of the intramedullary nail.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a multifunctional intramedullary nail. Background technique [0002] A fracture is a complete or partial break in the continuity of the bone structure. It is more common in children and the elderly, and it also occurs from time to time in young and middle-aged people. Patients often have a fracture at one site, and a few have multiple fractures. After timely and appropriate treatment, most patients can recover their original functions, and a small number of patients may have sequelae of varying degrees. [0003] The methods of fracture fixation are divided into external fixation and internal fixation. External fixation is mainly used for patients whose fractures have been reduced by manipulation, and some fractures require external fixation after open reduction and internal fixation. Currently commonly used external fixation methods include small splints, p...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the intramedullary nail fixation in the prior art, the surgical instruments need to be frequently replaced during the operation, and the operation process is cumbersome; due to individual differences in patients, the thickness of the bone cavity is different, and the intramedullary nail fixed in the bone cavity is easy to break. movement, nonunion or angulation of broken ends, the present invention provides a multifunctional intramedullary nail

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