Pore structural portion of porous titanium interbody fusion cage

An intervertebral cage and pore structure technology, which are applied in the field of vertebral implants and porous titanium intervertebral cages, can solve the problems of easy fracture, can not meet long-term clinical, lack of anti-fatigue ability, etc., and achieve good results. Elasticity and toughness, the effect of ensuring structural strength

Active Publication Date: 2017-05-31
CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent solves the problem of matching the elastic modulus of the fusion cage with the natural bone tissue and bone ingrowth, this single porous structure (that is, the porous structure of the fusion cage) lacks fatigue resistance. It is easy to break under the action and cannot meet the long-term clinical needs

Method used

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  • Pore structural portion of porous titanium interbody fusion cage
  • Pore structural portion of porous titanium interbody fusion cage
  • Pore structural portion of porous titanium interbody fusion cage

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0025] (Example 1, the porous structure part of the porous titanium intervertebral fusion device)

[0026] See figure 1 , Figure 5 and Figure 6 , the pore structure part of the porous titanium intervertebral cage of this embodiment is a part of the fusion device that is integrally printed and formed by the titanium alloy material by a 3D printer, and the pore structure part 2 is fixedly connected with the support structure part 1 in an integral form Used to guide the growth of new bone; the pore structure part 2 is openly exposed on the upper side, the lower side, the front side, the rear side and the right side, and the corresponding parts of the front side, the rear side and the right side are located In the interlinked triangular column-shaped space.

[0027] The void structure part 2 is composed of a combination of void units in a regular tetrahedral structure; wherein, the structural units are all composed of four rectangular parallelepiped titanium pillars 21 with t...

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Abstract

The invention discloses a functional part of a porous titanium interbody fusion cage and namely discloses a pore structural portion of a porous titanium interbody fusion cage. The pore structural portion is used for guiding ingrowth of new bones. The pore structural portion is exposed out of the top, bottom, front and rear of the fusion cage in opened manner, and an open growth space is provided for the effective growth of bones and the like. The pore structural portion of the porous titanium interbody fusion cage can function on its own, and may also cooperate with a support structural portion to arrive at interbody treatment.

Description

technical field [0001] The invention relates to an implant for vertebrae, belongs to the field of intervertebral fusion and internal fixation, and in particular relates to a part of a porous titanium intervertebral fusion device. Background technique [0002] Lumbar disc herniation and cervical spondylosis and other symptoms of degenerative disc disease is a common and frequently-occurring disease in modern society, seriously affecting the quality of life of patients. Spinal fusion is one of the most widely used techniques in spinal surgery. It mainly promotes spinal fusion by establishing immediate spinal stability and implant osteogenesis, osteoinduction, and osteoconduction. At present, intervertebral fusion has become the main method for the treatment of lumbar instability, lumbar spinal stenosis, degenerative spondylolisthesis, degenerative scoliosis, pseudarthrosis and degenerative disc disease. The fusion device in the prior art is mainly divided into two types accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
CPCA61F2/30767A61F2/4455A61F2002/30199A61F2002/30593A61F2002/3093A61F2002/30985A61F2310/00023
Inventor 吴忆峰李翔陈文涛韦冬孙平阳
Owner CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
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