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Anterior cervical intervertebral distraction repositor

A technology of anterior cervical spine and reducer, which is applied in the field of cervical anterior intervertebral distraction reducer, which can solve problems such as lack of equipment, and achieve the effect of safe use, pain-free, and stable reset process

Inactive Publication Date: 2014-09-10
PEKING UNIV THIRD HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the intervertebral distractor only has the function of longitudinally distracting the intervertebral space, and does not have the function of correcting the anteroposterior dislocation between the vertebral bodies.

Method used

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  • Anterior cervical intervertebral distraction repositor
  • Anterior cervical intervertebral distraction repositor
  • Anterior cervical intervertebral distraction repositor

Examples

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Embodiment Construction

[0049] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0050] see figure 1 , figure 1 It is a structural schematic diagram of an embodiment of the present invention. The anterior cervical intervertebral distraction reducer 1 of the present invention is used for cervical distraction reduction in anterior cervical surgery, comprising: a reducer 1, which is used to connect with the cervical vertebral body 3 to be reset, and through the vertical direction The continuous movement drives the adjustment and reset of the vertebral body 3 to realize the correction of the alignment of the vertebral body 3; the spreader 2 is connected with the resetter 1, and the horizontal direction position of the resetter 1 is adjusted so that the The intervertebral space of the vertebral body 3 is stretched longitudinally until the articular process 4 is unlocked for intervertebral surgery, or the posi...

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Abstract

Disclosed is an anterior cervical intervertebral distraction repositor which is used for cervical distraction reposition in anterior cervical surgery. The repositor comprises a repositor body and a distractor, the repositor body is connected to a cervical vertebral body to be reposited and drives the vertebral body to be reposited through vertical continuous movement so as to correct a vertebral body sequence, the distractor is connected with the repositor body, and the position of the distractor in the horizontal direction is adjusted to enable an interbody of the vertebral body to be longitudinally distracted until facet joints are unlocked so as to perform interbody surgery, or after the vertebral body is adjusted and reposited, the position of the repositor body is kept so as to complete interbody fusion or fixation surgery. The dislocated vertebral body can be reposited step by step, and the reposition process is smooth, accurate and controllable; the repositor needs not to be inserted into intervertebral space for operation, and is convenient and safe to use; after vertebral body reposition, the intervertebral reposition relation can be kept till reliable interbody fixation operation is completed, reposition of the dislocated vertebral body can be completed in the anterior cervical surgery, and pain brought by additional surgeries is avoided.

Description

technical field [0001] The invention relates to a medical operation instrument, in particular to an anterior cervical intervertebral distraction resetter suitable for anterior cervical surgery. Background technique [0002] Anterior cervical surgery is widely used in clinical practice. The intervertebral distractor is an essential tool for anterior cervical surgery. It can open the narrow intervertebral space and facilitate the removal of intervertebral discs and osteophytes protruding into the spinal canal. However, the intervertebral distractors currently used clinically only have the function of longitudinally distracting the intervertebral space, and do not have the function of correcting the anteroposterior dislocation between vertebral bodies. In fact, dislocation of intervertebral joints caused by cervical spine trauma and other reasons is not uncommon. It is difficult to reset during surgery, and sometimes it has to be fused to the deformed position, or the facet joi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
CPCA61B17/0206A61B17/7074A61B2017/564
Inventor 刁垠泽王少波孙宇刘忠军
Owner PEKING UNIV THIRD HOSPITAL
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