External screw fixing device used after tibial osteotomy

Abstract

An external screw fixing device used after tibial osteotomy comprises a sliding positioning rod, a fixing screw, a butterfly bolt and a sliding sleeve, wherein the fixing screw, the butterfly bolt and the sliding sleeve are correspondingly arranged as a group; the fixing screw is inserted into a horizontal sliding hole in the axial direction of the sliding sleeve; the sliding positioning rod is in sliding fit with a vertical sliding hole; the butterfly bolt is in threaded connection with the sliding sleeve through a threaded hole; the fixing screw running through the horizontal sliding hole is in contact with the sliding positioning rod running through the vertical sliding hole; when the butterfly bolt is screwed, the butterfly bolt presses against the fixing screw. The sliding sleeve can slide along the sliding positioning rod and the fixing screw in the vertical and horizontal directions respectively, and the position of the sliding sleeve is set through the butterfly bolt, so that in an implementation process of a surgery, a tibia can be rapidly positioned and fixed to avoid tibial dislocation; under the premise that the medical effect is ensured, the external screw fixing device is convenient to use and easy to operate and can reduce pains of a patient to the maximum extent.

Description

technical field [0001] The invention relates to the technical field of surgical instruments, in particular to a screw external fixation device after tibial osteotomy. Background technique [0002] The tibia plays an important role in supporting the body weight. Tibial fractures are one of the most common fractures in knee trauma, accounting for about 9.5% of all body fractures. In surgical treatment, screws are often placed in the tibia, but there is no position between the screws that cannot maintain a relatively fixed position, which can easily lead to dislocation of the tibia. In clinical application of the existing device, due to the complex structure and slow adjustment speed, the operation time is prolonged and the operation treatment effect is reduced. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a screw external fixation device after tibial osteotomy. [0004] The technical scheme that the present in...

AI Technical Summary

Problems solved by technology

In surgical treatment, screws are often placed in the tibia, but there is no position between the screws that cannot maintain a relatively fixed position, which can easily lead to tibial misalignment

In the clinical application of existing devices, due to the complex structure and slow adjustment speed, the operation time is prolonged and the surgical treatment effect is reduced.

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