Vertebral body distraction device for non-invasive anterior cervical surgery

Abstract

The invention discloses a vertebral body distraction device for non-invasive anterior cervical surgery, comprising: a vertebral body distraction mechanism comprising a rotary handle part and a distraction assembly arranged at the bottom end of the rotary handle part; the rotating handle part comprises an outer sleeve, a connecting rod arranged in the outer sleeve and a driving gear disc arranged at the bottom end of the outer sleeve, and a driving gear at the driving gear disc is meshed with a driven rack at the opening assembly to control opening and closing of the opening assembly; the locking assembly is arranged on the vertebral body distraction mechanism and used for locking the distraction position. According to the vertebral body distraction device for the non-invasive anterior cervical surgery, by arranging the vertebral body distraction mechanism and the locking assembly, the vertebral body distraction distance can be rapidly adjusted according to needs, the distraction position can be rapidly locked, the surgery difficulty is greatly reduced, and the surgery precision is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a vertebral body distraction device for non-invasive cervical anterior surgery. Background technique [0002] Cervical kyphosis is a type of cervical kyphosis that is caused by a variety of pathological factors. The normal physiological lordosis of the cervical spine disappears and forms a backward curvature deformity, which leads to the destruction of the normal sequence of the cervical spine and causes local and / or nerve stimulation and compression symptoms and signs. disease. Common causes of cervical kyphosis include degenerative, traumatic, developmental, neuromuscular, iatrogenic, and idiopathic. Severe cervical kyphosis often requires surgical correction. The steps of anterior cervical orthopedic surgery include intervertebral space decompression and / or osteotomy, intervertebral space distraction, bone graft fusion and internal fixation. Among them, the purp...

AI Technical Summary

Problems solved by technology

[0003] However, in current clinical practice, there is no anterior cervical vertebral body correction distractor specially designed for the purpose of correcting cervical kyphosis. Surgeons generally use lumbar distractors for distraction, which is not conducive to distraction adjustment distance, but also The large volume affects the operation; at the same time, it is not easy to lock the position after being stretched, which affects the effect of the operation

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