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Restoration and fixing device for atlantoaxial dislocation

A fixation device and atlantoaxial technology, which is applied in the field of reduction and fixation devices, can solve the problems of inaccurate reset operation time and high operation risk, and achieve the effect of shortening operation time, good reset effect and improving safety

Pending Publication Date: 2021-01-26
NAT INST CORP OF ADDITIVE MFG XIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of great surgical risk in the reduction and fixation of atlantoaxial dislocation in existing surgical methods, and the problem of inaccurate reduction and long operation time in the reduction and fixation of atlantoaxial dislocation by traction Problem, the present invention provides a reset and fixation device for atlantoaxial dislocation

Method used

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  • Restoration and fixing device for atlantoaxial dislocation
  • Restoration and fixing device for atlantoaxial dislocation
  • Restoration and fixing device for atlantoaxial dislocation

Examples

Experimental program
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Embodiment

[0043] Example structure

[0044] like figure 1 As shown, this embodiment provides a reset and fixation device for atlantoaxial dislocation, including a reset mechanism and a fixation mechanism;

[0045] The reset mechanism is used to adjust the position of the atlantoaxial vertebrae, so as to realize the reset of the dislocated atlantoaxial vertebrae. After the reset is completed, the mechanism can be completely removed. ;

[0046] The fixation mechanism is used to fix the atlantoaxial spine after reduction. After the fixation, it can be determined whether to remove it according to the length of recovery time, including the axial spine fitting 4, the first pedicle screw 5, and the second pedicle screw 6 , fixed rod 7 and positioning nut 8;

[0047] The lower end surface of the atlas fitting 1 is fully adapted to the 9 bone surfaces of the atlas, and can be closely fitted to the 9 bones of the atlas during use, and the upper end of the atlas fitting 1 is provided with a pre...

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Abstract

The invention discloses a restoration and fixing device for atlantoaxial dislocation. The device simultaneously has the dual functions of assisting shift restoration and nail-placed fixing of atlantoaxial vertebrae and has the advantages of good surgical operation effect, relatively short surgical operation time and the like. The device comprises a restoring mechanism for adjusting and restoring positions of the atlantoaxial vertebrae and a fixing mechanism for fixing the restored atlantoaxial vertebrae. The restoring mechanism comprises an atlas fitting member, a base and a restoring rod; thefixing mechanism comprises an axis fitting member, a first pediculus arcus vertebra placement nail, a second pediculus arcus vertebra placement nail, a fixing rod and a locating nut; and both the axis fitting member and the atlas fitting member are molded by combining a 3D printing mode and a material-reducing processing mode.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a reset and fixation device for atlantoaxial dislocation. Background technique [0002] Atlantoaxial dislocation, or atlantoaxial dislocation, refers to the loss of normal alignment between the joints between the first segment (atlas) and the second segment (axis) of the cervical spine. Atlantoaxial dislocation types include anterior dislocation, posterior dislocation, bilateral asymmetric dislocation and rotational dislocation. [0003] Atlantoaxial dislocation can directly or indirectly stimulate and compress the spinal cord, nerves and blood vessels, causing a series of diseases. Typical symptoms are: 1) occipital and neck pain; 2) torticollis and neck movement limitation; 3) upper spinal cord The damage can be manifested as muscle tension in the whole body, instability or weakness in holding objects; weakness in walking; higher. Atlantoaxial dislocation may even co...

Claims

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Application Information

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IPC IPC(8): A61B17/70
CPCA61B17/7074A61B17/7091
Inventor 王磊卢秉恒王晶李家良
Owner NAT INST CORP OF ADDITIVE MFG XIAN
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