Internal fixing device for locking and guiding by combining lateral pedicle screw with lateral transarticular screw

Abstract

The invention relates to an internal fixing device for locking and guiding by combining a lateral pedicle screw with a lateral transarticular screw. The device comprises an upper pedicle screw, a lower pedicle screw, a lateral transarticular screw, a triangular fixing frame, a screw guiding cylinder and a guide plate, wherein the triangular fixing frame comprises an upper fixing cap, a lower fixing cap, a left inclined fixing cap, an upper horizontal connecting pin, a lower vertical connecting pin and a left inclined connecting pin; the left end of the upper horizontal connecting pin is fixedly connected with the left inclined fixing cap; the right end of the upper horizontal connecting pin is fixedly connected with the upper fixing cap; the upper end of the lower vertical connecting pin is fixedly connected with the upper fixing cap; the lower end of the lower vertical connecting pin is fixedly connected with the lower fixing cap; the lower end of the left inclined connecting pin is fixedly connected with the lower fixing cap; the upper end of the left inclined connecting pin is fixedly connected with the left inclined fixing cap; the upper pedicle screw, the lower pedicle screw and the lateral transarticular screw form a triangular stable fixing relation, so that the purpose of firmly fixing can be achieved, the minimally invasive surgery is realized and the operation efficiency is greatly increased.

Description

technical field [0001] The invention relates to a pedicle screw on one side combined with a facet screw on the opposite side to lock and guide an internal fixation device. Background technique [0002] With the change of lifestyle in modern society, office workers sit and work for a long time, resulting in more and more diseases such as lumbar disc herniation, discogenic low back pain and lumbar instability. If conservative treatment fails, surgery is required. Lumbar fusion is widely used to treat diseases such as lumbar disc herniation, discogenic low back pain and lumbar instability. During the treatment process, a high-strength fixator is required. The existing fixer consists of two simple screws and a very thin Composed of traditional metal rods, this traditional classic fixation method is not very firm, and needs to peel off the muscles on both sides of the human body, and then fix them with two sets of fixators, which makes the patient suffer more pain and cannot ach...

AI Technical Summary

Problems solved by technology

Lumbar fusion is widely used to treat diseases such as lumbar disc herniation, discogenic low back pain and lumbar instability. During the treatment process, a high-strength fixator is required. The existing fixer consists of two simple screws and a very thin Composed of traditional metal rods, this traditional classic fixation method is not very firm, and needs to peel off the muscles on both sides of the human body, and then fix them with two sets of fixers, which makes the patient suffer more pain and cannot achieve minimally invasive surgery , the screw is easy to deviate when it is screwed in and fixed, the accuracy rate is not high, and it is easy to be misplaced, resulting in spinal cord, nerve root and other injuries

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