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Spacer for laminoplasty

A technology of laminoplasty and spacer, applied in the direction of outer plate, fixer, internal fixer, etc.

Inactive Publication Date: 2017-08-29
株式会社CG生物 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, there is the inconvenience of performing the work of fixing the grafted bone separately in front

Method used

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  • Spacer for laminoplasty
  • Spacer for laminoplasty
  • Spacer for laminoplasty

Examples

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Embodiment Construction

[0028] Hereinafter, the present invention will be described in detail by explaining exemplary embodiments of the invention with reference to the accompanying drawings.

[0029] figure 1 is a perspective view of a spacer for laminoplasty according to an exemplary embodiment of the present invention, figure 2 Yes figure 1 An exploded perspective view of the spacer for laminoplasty, Figure 3a and Figure 3b is showing figure 1 A view of the expanded state of the laminoplasty spacer, and Figure 4 is showing figure 1 A view of the status of the laminoplasty with a spacer fixed to the cervical vertebrae.

[0030] like Figure 1 to Figure 4As shown in , the spacer for laminoplasty according to an exemplary embodiment of the present invention includes: a first spacer 100, the first spacer 100 is placed between the upper lamina 11 of the lamina 10 of the dissected cervical vertebra 1 The incision surface 11a is fixed to the upper vertebral plate 11 in a state where it re...

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Abstract

The present invention provides a spacer for laminoplasty comprising a first spacer which is fixed on the upper lamina plate in a lamina plate of an incised cervical vertebrae, while enabling the incised surface of the upper lamina plate to be disposed thereon and supported thereby; and a second spacer which is fixed on the lower lamina plate in the lamina plate of the incised cervical vertebrae so that the incised surface of the lower lamina plate is brought into contact therewith and supported thereby, wherein the first spacer and the second spacer have lengths which are extensible with respect to each other and are combined to not be separated from each other by means of a fixing bar.

Description

technical field [0001] The present invention relates to a spacer for laminoplasty, and more particularly to a spacer for laminoplasty comprising: a first spacer that seats against and supports a first incision in a cervical lamina; and The second spacer contacting and supporting the second notch, the first spacer and the second spacer include a first expansion connection portion and a second expansion connection portion to have an alternating ratchet structure and between the first spacer and the second spacer The first spacer and the second spacer are connected to each other in a state where the lengths of the first spacer and the second spacer are expandable relative to each other, and the expanded connecting portion provides the function of grafting bone so that the fixation force to the cervical vertebra can be improved and the operation can be facilitated. Background technique [0002] The spine usually consists of 24 bones (not including the sacrum), and these bones ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70A61F2/44
CPCA61B17/70A61F2/44A61B17/8009A61B17/8023A61B17/7071A61B17/7001A61B17/7035A61B17/7044A61L27/06A61L2430/38
Inventor 郑银美徐睃赫宋东律赵明来丁海俊
Owner 株式会社CG生物
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