Fixation and fusion device for atlantoaxial lateral mass joint

A fusion device and atlantoaxial technology, applied in the field of medical equipment, can solve problems such as no connection of intervertebral fusion, unsatisfactory biomechanics, loosening and displacement of fusion, and achieve relative displacement prevention, firm fixation, and simplified surgery The effect of steps

Pending Publication Date: 2018-06-12
PEKING UNIV THIRD HOSPITAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. Not ideal biomechanics
[0007] 3. There is no connection between the intervertebral fusion cage and internal fixation, the fusion cage may loosen and shift, requiring a second surgery

Method used

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  • Fixation and fusion device for atlantoaxial lateral mass joint
  • Fixation and fusion device for atlantoaxial lateral mass joint
  • Fixation and fusion device for atlantoaxial lateral mass joint

Examples

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Embodiment Construction

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0036] According to a specific embodiment of the present invention, there is provided an atlantoaxial lateral mass joint fixation and fusion device which may include a fusion structure 101 and a fixation structure 102, wherein the fusion structure 101 and the fixation structure 102 may be integrally formed, for example but not limited to, atlantoaxial The joint fixation and fusion device for the lateral mass of the axis can be...

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Abstract

The invention discloses a fixation and fusion device for the atlantoaxial lateral mass joint. The fixation and fusion device comprises a fusion structure and a fixation structure; the fusion structureis used for being implanted into the gap of the atlantoaxial lateral mass joint; the fixation structure is arranged at one end of the fusion structure and comprises an axis joint fixation part and anatlas joint fixation part which are used for being fitted to atlantoaxial lateral masses respectively, and the axis joint fixation part and the atlas joint fixation part are provided with through holes for fasteners to penetrate through respectively. The fusion structure and the fixation structure are integrally formed, thus, internal fixation and bone graft fusion can be completed at a time during an atlantoaxial joint fusion operation, and operation steps are simplified. Besides, as the fusion structure and the fixation structure are integrally formed and the fixation structure can be fixedto the atlantoaxial lateral mass joint, relative displacement of the fusion structure can be prevented, and the atlantoaxial lateral mass joint can be firmly fixed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an atlantoaxial lateral mass joint fixation and fusion device. Background technique [0002] Atlantoaxial joint dislocation refers to the loss of the normal alignment relationship between the joints between the first segment (atlas) and the second segment (axis) of the cervical spine, resulting in compression of the medulla oblongata and high cervical spinal cord, and the direction of the vertebral artery and blood flow. Changes in dynamics; dizziness or syncope may occur in mild cases, and quadriplegia or even death due to respiratory failure may occur in severe cases. Due to its high disability and fatality rate, atlantoaxial joint dislocation is one of the hot spots and difficulties in spinal surgery research worldwide. [0003] Atlantoaxial arthrodesis is currently recognized as the most effective method for the treatment of atlantoaxial joint dislocation. Posterior...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/4455A61F2002/30985A61F2002/30622A61F2002/30329A61F2/30749A61F2310/00023A61F2310/00041
Inventor 王圣林刘忠军
Owner PEKING UNIV THIRD HOSPITAL
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