Bone fixation device

Abstract

The invention belongs to the field of medical instruments, and particularly relates to a bone fixing device, which comprises an elastic hollow filling nail, a locking steel plate, a sleeve and a Kirschner wire. The locking steel plate is provided with a plurality of nail holes matched with the elastic hollow filling nail, the elastic hollow filling nails are fixed in the nail holes, the elastic hollow filling nails are provided with central holes penetrating the upper and lower sides thereof, the Kirschner wire inserts through the elastic hollow filling nail through a center hole, one end of the Kirschner wire is fixed on the locking steel plate by an elastic hollow plug, the other end is fixed through a sleeve after passing through the bone, the top of the elastic hollow filling nail is evenly opened with a plurality of upper grooves, the bottom portion is uniformly opened with a plurality of lower grooves, and the upper groove and the lower groove are staggered. The bone fixing device has the advantages of simple structure, convenient use and easy operation; double-sided fixing is realized, the bone fixing device is firm and stable, is suitable for minimally invasive operation, has less damage, and is convenient for popularization and application.

Description

technical field [0001] The invention belongs to the field of medical instruments, and in particular relates to a bone fixation device. Background technique [0002] At present, various types of steel plates are used in orthopedics for internal fixation of fractures, such as: ordinary steel plates, compression steel plates, and locking plates; they are divided into upper limbs, lower limbs, and various anatomical plates because of the needs of fracture locations. There are many types of steel plates, In addition, due to the need for open reduction of the fracture, the damage is large, and it is not easy to operate minimally invasively. Also, due to the variation of the shape of the bone, the plate and the bone do not fit well, and the fixation effect is affected. The direction of the fixation nail hole is single Side, single-sided fixation structure, but can not achieve three-dimensional fixation of fractures, prone to plate breakage, bone non-connection, non-union. Content...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the bone block at the fracture site is small and the diameter of the commonly used screw is large, which cannot be properly fixed during the existing fracture operation, especially the fracture at the joint site requires anatomical reduction and strong fixation. The existing internal implants cannot meet the requirements of this type of operation. The current international method is to use fine Kirschner wires for temporary fixation during the operation, and then penetrate the screws through several existing screw holes on the steel plate, relying on the gap between the bone fragments. The relatively pressurized frictional force fixes small bone blocks, and problems such as loss of reduction and failure of internal fixation are often found after surgery, and a bone fixation device is provided.

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