Anterior dislocation reduction fixator for atlantoaxial joint

Abstract

The invention discloses an anterior dislocation reduction fixator for an atlantoaxial joint, and relates to the field of a new surgical operating instrument. The fixator is composed of a fixed pincer and a movable pincer, and is characterized in that a universal bolt at the head end of the fixed pincer is screwed into an axis vertebral body, and is taken as a pivot point, so that the purpose of restoring an atlas is achieved through the opening and closing of an opening-closing pincer sheet of the movable pincer, the stretching of a stretching pincer sheet of the movable pincer and the appropriate angulation between the universal bolt and a body part of the fixed pincer by application of the lever principle; finally, the universal bolt is fixed by means of tightening a universal fixing screw, and the propelling degree of a rear handle is fixed through a fixed transverse rod on a front handle of the movable pincer, so that all movable joints are locked for maintaining an anatomical position of the restored atlantoaxial joint. The fixator disclosed by the invention has the advantages that a next surgical operation is beneficially performed, so that the convenience and safety of an atlantoaxial joint surgical operation are improved, and complications related to the surgical operation are reduced.

Description

technical field [0001] The invention belongs to the field of surgical instruments, in particular, a spinal surgical instrument that can effectively reset and temporarily fix an anteriorly dislocated atlantoaxial joint---a reduction fixer for anteriorly dislocated atlantoaxial joint. For patients with anterior dislocation of the atlantoaxial joint, especially those with refractory anterior dislocation, when the atlantoaxial joint is reduced and fixed under the anterior endoscope (of course, it can also be used for anterior open surgery of the atlantoaxial joint), the application of this surgical instrument can be convenient and convenient. Effectively reset the anterior dislocated atlantoaxial joint, and temporarily maintain the anatomical position of the reset atlantoaxial joint, which is conducive to the next operation, thereby improving the convenience and safety of the atlantoaxial joint operation; associated complications. Background technique [0002] In atlantoaxial j...

AI Technical Summary

Problems solved by technology

[0002] In atlantoaxial joint dislocation, anterior dislocation is the most common way of dislocation, especially in the treatment of old anterior dislocation, anterior endoscopic (or percutaneous fluoroscopy) one-stage reduction and fixation of atlantoaxial joint is a traumatic treatment. It is a treatment method for patients with small and fast postoperative recovery, but in the current endoscopic next-stage reduction and fixation of the atlantoaxial joint, due to the lack of effective surgical instruments to reset and maintain the anatomical position of the atlantoaxial joint, this gives the next step Atlantoaxial transarticular screw fixation brings difficulties, and at the same time increases the difficulty of surgical operation and increases the complications related to surgical operation

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