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Interbody fusion cage

An intervertebral fusion device, one-half technology, applied in the field of orthopedic internal fixation implants, can solve problems such as easy slipping out of the intervertebral space, achieve good supporting effect, and not easy to shift or fall off as a whole

Inactive Publication Date: 2015-09-23
BEIJING NATON TECH GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Usually, the method of treating degeneration of the intervertebral disc is to use intervertebral fusion. The principle of intervertebral fusion is to implant the intervertebral fusion device into the patient's intervertebral space through surgery, which is used to expand and guide the distance between the vertebral bodies, and finally make the upper and lower The intervertebral fusion makes the intervertebral space more stable. However, before the fusion, the intervertebral fusion device is easy to slip out of the intervertebral space when the spine is doing work such as bending back, so a more stable intervertebral fusion device is needed after implantation. fusion cage

Method used

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Embodiment Construction

[0029] The intervertebral fusion device of the present invention will be further described in detail through specific examples below.

[0030] Such as Figure 1-3 The intervertebral fusion device is made of titanium alloy or PEEK material, and the body is a strip-shaped structure, including an upper surface 1, a lower surface 2, and a side wall 3 connecting the upper and lower surfaces, and a through hole 4 runs through the upper and lower surfaces , the area of ​​the through hole 4 is not less than 60% of the surface area of ​​the upper / lower surface of the cage, and is used for implanting bone graft. A through hole 31 is also provided on the side wall 3 for promoting the blood supply between the implanted bone graft and the human body, so that the graft bone can be better fused with the upper and lower vertebral bodies. The front end of the fusion cage is a streamlined structure with a smooth transition, and a threaded hole or a slot (not shown) that fits into the insertion...

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Abstract

The invention relates to an interbody fusion cage, and belongs to the technical field of orthopedic internal fixation. The interbody fusion cage comprises an upper surface, a lower surface and side walls. The interbody fusion cage has the advantages that the post-implantation stability can be improved by the interbody fusion cage, interbody withdrawing or shifting of the interbody fusion cage can be prevented, and transplanted bones in the fusion cage can be advantageously fused with the vertebral bodies of patients.

Description

technical field [0001] The invention relates to an orthopedic internal fixation implant, in particular to an intervertebral fusion device. Background technique [0002] In addition to supporting the upper body and head of the human body, and protecting the internal organs with the ribs and sternum, the most important thing is that the spine carries the central nerve that conveys information. However, as the age increases, the spine will slowly degenerate. One of the most common symptoms is degeneration of the intervertebral disc. The degeneration of the intervertebral disc will reduce the stability of the intervertebral body, or the intervertebral disc will be reduced and the intervertebral stenosis will be caused by the loss of water and elasticity, which will bring various symptoms to the patient, including neuralgia or dysfunction. sexual disorder. [0003] Usually, the method of treating degeneration of the intervertebral disc is to use intervertebral fusion. The prin...

Claims

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Application Information

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IPC IPC(8): A61F2/44
Inventor 吴海源刘国萃
Owner BEIJING NATON TECH GRP CO LTD
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