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Atlantoaxial dislocation posterior repositor

A reducer and atlantoaxial technology, applied in the field of medical devices, can solve problems such as difficult operation, and achieve the effects of solving difficult operation, reducing risks and high safety.

Pending Publication Date: 2019-01-22
GENERAL HOSPITAL OF SOUTHERN THEATRE COMMAND OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a posterior atlantoaxial dislocation reducer for anterior atlantoaxial dislocation, which solves the operational difficulties caused by anterior reduction in the prior art

Method used

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  • Atlantoaxial dislocation posterior repositor
  • Atlantoaxial dislocation posterior repositor
  • Atlantoaxial dislocation posterior repositor

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] A posterior reducer for atlantoaxial dislocation, comprising a cross-connected fixed arm 1 and a sliding arm 2, the fixed arm 1 and the sliding arm 2 are provided with vertical bends at the same height; the front section of the sliding arm 2 is provided with a hook 21 , the hook 21 can slide controllably at the front end of the sliding arm 2 through the sliding module 3; the front of the fixed arm 1 is provided with a fixing module 11 fixed to the vertebral b...

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Abstract

The invention provides an atlantoaxial dislocation posterior repositor which comprises a fixed arm and a sliding arm in crossed connection. The fixed arm and the sliding arm are provided with verticalbends in the same height. A hook is arranged on the front section of the sliding arm, and the hook can slide front and back at the front end of the sliding arm through a sliding module in a controllable mode. A fixing module fixed to a centrum is arranged on the front portion of the fixed arm. An atlanto-axis is connected through the sliding arm and the fixed arm, an axis is fixed through the fixing module on the fixed arm, then the dislocated atlas is pulled back to be restored through the sliding module on the sliding arm, then fixing and bone grafting operation are conducted, and restoration of anterior dislocation of the atlanto-axis is realized from the posterior.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a posterior reducer for atlantoaxial dislocation. Background technique [0002] The atlas and axis are the first and second cervical vertebrae of the human body. Regardless of the cause, atlantoaxial dislocation will lead to spinal cord compression, numbness and weakness of limbs, and even paralysis and death. The key to the treatment of atlantoaxial dislocation is Realize atlantoaxial reduction and relieve spinal cord compression. According to the degree of difficulty of reduction, atlantoaxial dislocation can be divided into 3 types: reductible, difficult to reduce and non-reducible. Among them, the reduction can be performed after traction, as long as the firm fixation and reliable bone graft fusion are carried out in the reduction state; the non-reduction is almost impossible to reduce due to the bony connection and fusion between the atlantoaxial vertebrae. Direct resection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/88
CPCA61B17/8866A61B17/8875
Inventor 马向阳
Owner GENERAL HOSPITAL OF SOUTHERN THEATRE COMMAND OF PLA
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