Nerve spacer in centrum

A spacer and vertebral body technology, applied in medical science, surgery, etc., can solve the problems affecting the recovery of nerve function, easy to be compressed, and the nerve root anastomosis is turned to the opposite side, so as to reduce the complexity of the operation and shorten the turn. The effect of increasing the recovery rate

Inactive Publication Date: 2013-05-22
刘亚平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with this method, although the transposition of the nerve root is significantly shortened, it is still not enough to transfer the anastomosis of the translocated nerve root to the opposite side, ...

Method used

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  • Nerve spacer in centrum
  • Nerve spacer in centrum

Examples

Experimental program
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Embodiment 1

[0027] Such as figure 1 As shown, a nerve spacer in the vertebral body includes a tube body 1 implanted inside the vertebral body to build a nerve channel, the tube body 1 is made of biocompatible materials, and the tube body 1 The inner wall is smooth, and the outer wall is provided with lines that engage with the vertebral body to prevent falling off; one port of the tubular body 1 is detachably installed with a semi-streamlined plug 2 .

[0028] In this embodiment, the biocompatible material is a titanium metal material. This material not only has good biocompatibility, but also has a certain support force. In order to facilitate the fixing of the tube body, another port of the tube body 1 is provided with a Chuck 3, the texture of the outer wall of the tubular body 1 is a thread, which is convenient for engagement and fixation with the vertebral body.

[0029] Moreover, in this embodiment, the outer diameter of the tubular body 1 is 10mm, and the inner diameter is 8mm; th...

Embodiment 2

[0032] It is basically the same as Embodiment 1, except that in this embodiment, the outer diameter of the pipe body 1 is 8 mm, and the inner diameter is 6 mm; the plug 2 is installed at the port of the pipe body 1 by threads, After the body 1 is implanted into the vertebral body, the plug 2 is disassembled, and a hoop (not shown in the figure) is added to fix it.

Embodiment 3

[0034] It is basically the same as Embodiments 1 and 2, except that in this embodiment, the outer diameter of the pipe body 1 is 12 mm, and the inner diameter is 10 mm.

[0035] Treatment Example 1

[0036] Li, 28 years old, suffered serious trauma to the head and neck in a car accident, and avulsion of the brachial plexus root. When the traditional subcutaneous transposition of the neck was adopted, the sural nerve graft was bridged due to the long journey. Transposition surgery, but 3 years after the operation, there is still no effective neurological recovery.

[0037] Treatment Example 2

[0038] Sun Mou, 19 years old, suffered avulsion of the brachial plexus root from a motorcycle fall and was treated with anterior transposition of the vertebral body. Although the stroke was significantly shortened, the transposed nerve was still not enough to fully reach the contralateral side, and the nerve anastomosis Just located between the vertebral body and the esophagus, one yea...

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Abstract

A nerve spacer in centrum comprises a pipe body which is implanted in the centrum and used for building a nerve channel. The pipe body is made of biocompatible materials and the inner wall of the pipe body is smooth. The outer wall of the pipe body is provided with lines which are meshed with the centrum so as to prevent the centrum from falling off. A choke plug in a half stream line shape is installed at one end port of the pipe body in a detachable mode. The invention provides a novel train of thought of nerve translocation. The method that a normal nerve root is translocated in front of the centrum is changed into the method that the normal nerve root is translocated in the centrum, so that not only is a translocation route shortened greatly and the complexity of an operation reduced, but also the original condition that the centrum constricts the tranlocation nerve root is avoided and the recovery rate of the patients after operations is improved further.

Description

technical field [0001] The invention relates to a medical device, in particular to a nerve spacer in a vertebral body. Background technique [0002] In recent years, there have been more and more patients with nerve injuries, especially due to the increase in severe trauma to the head and neck. Patients with brachial plexus root avulsion are common clinically, causing severe disability and difficult treatment. For patients with brachial plexus root avulsion, nerve transfer surgery is an effective repair method. Nerve transfer surgery is a method of transferring the nerve root from the normal side to the injured side to repair the damaged nerve root and treat the nerve injury. s method. [0003] The current clinical application method is subcutaneous transposition through the neck. Some scholars have also begun to try anterior transposition of the vertebral body, that is, the normal, undamaged nerve root bypasses the vertebral body and translocates to the injured side. How...

Claims

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Application Information

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IPC IPC(8): A61B17/00
Inventor 刘亚平
Owner 刘亚平
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