Internal fixation device of spine

A technology of fixing device and spine, applied in the field of medical devices, can solve the problems of loss of reset, poor reset effect, incomplete recovery of vertebral body, etc.

Active Publication Date: 2012-09-19
SHANGHAI SANYOU MEDICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual operation, after the spinal internal fixation device is reset, the reset will be lost during the fixation process by the lock nut 4`, so that the vertebral body does not fully recover its original curve, and the reset effect is not good.

Method used

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  • Internal fixation device of spine
  • Internal fixation device of spine
  • Internal fixation device of spine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The core of the present invention is to provide a spinal internal fixation device, which can eliminate the loss of reset during the reset and locking process, and the vertebral body can obtain a better reset effect.

[0043] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] Please refer to Figure 4 with Figure 5 , Figure 4 It is a structural schematic diagram of a specific embodiment of the spinal internal fixation device provided by the present invention, Figure 5 for Figure 4 Side cross-sectional view of the spinal fixation device shown.

[0045] In a specific embodiment, the present invention provides a spinal internal fixation device, comprising a nail body 1, a lock nut 2, a connecting plate 3 and a slider 4, the connecting plate 3 has a long groove 31, the Th...

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PUM

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Abstract

The invention discloses an internal fixation device of a spine, which comprises a nail body, a locking nut, a connecting plate and a sliding block, wherein the connecting plate is provided with a long groove, the sliding block is provided with a through hole, the sliding block is matched with the connecting plate and can move along the long grove, the nail body penetrates through the through hole and the long groove, the locking nut is in threaded connection with the nail body, and the nail body is located by the locking nut. When the spine is restored, the nail body of the internal fixation device of spine is implanted in the spine and penetrates through the sliding block and the connecting plate, and the sliding block can move along the long groove of the connecting plate, so that the restoring regulation of the nail body is realized; and then the nail body is locked by the locking nut, and in the locking process, because the through hole of the sliding block is used for limiting the position of the nail body, the restoring loss can not be caused. According to the internal fixation device of the spine, the restoring loss in a restoring locking process is eliminated, and the spine can obtain a better restoring effect.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a spinal internal fixation device. Background technique [0002] In recent years, with the development of spinal biomechanics research and material science, spinal internal fixation technology has been widely used in the surgical treatment of spinal degenerative diseases, spinal tumors, trauma and even spinal infection. [0003] Instruments used in spinal fixation procedures include spinal fixation devices and rods. Fix the spinal internal fixation device on the vertebral body first, and then install the rod on the spinal internal fixation device, so that the spinal internal fixation device and the rod are relatively fixed. The internal fixation device of the spine is operated to move the vertebral body and realize the orthopedic reduction of the vertebral body. [0004] Please refer to figure 1 , figure 1 It is a schematic diagram of a typical spinal internal fix...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/70
Inventor 周跃刘明岩张文桥
Owner SHANGHAI SANYOU MEDICAL CO LTD
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