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Supporting structure portion of porous titanium interbody fusion cage

A technology of intervertebral cage and support structure, which is applied in the field of vertebral implants and porous titanium intervertebral cages, can solve the problems of lack of fatigue resistance, easy fracture, etc. The effect of structural strength, excellent fatigue resistance mechanical properties

Active Publication Date: 2017-03-22
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 lacks fatigue resistance and is easily broken under the action of dynamic cyclic stress, which cannot meet the long-term clinical needs. needs

Method used

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  • Supporting structure portion of porous titanium interbody fusion cage
  • Supporting structure portion of porous titanium interbody fusion cage
  • Supporting structure portion of porous titanium interbody fusion cage

Examples

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Embodiment 1）

[0031] Such as figure 1 As shown, the supporting structure part 1 of the porous titanium intervertebral fusion device 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 is fixedly connected with the porous structure part 2 in an integral form for To bear external loads; the upper side, lower side, front side, rear side and right side of the support structure part 1 are exposed outward in an open manner, and the front side, rear side and right side all have triangular column-shaped open spaces, and the The open space described above communicates internally.

[0032] Such as figure 2 As mentioned above, the support structure part 1 includes a mounting part 11 , a left bracket 12 , a connecting part 13 and a right bracket 14 connected in sequence. The mounting part 11 is provided with a pair of instrument slots 11 - 1 arranged front and back and an instrument hole 11 - 2 arranged along the...

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Abstract

The invention discloses a portion of a porous titanium interbody fusion cage, namely a supporting structure portion of the porous titanium interbody fusion cage. The supporting structure portion is used for bearing external load; and a pore structure portion is used for guiding in-growth of new bone. The upper side, the lower side, the front side, the rear side and the right side of the supporting structure portion are exposed outwards in an open mode, and the front side, the rear side and the right side are provided with open spaces in the form of triangular prisms. When the supporting structure portion is applied to the porous titanium interbody fusion cage, the pore structure portion, which is matched with the supporting structure portion, is exposed outwards in an open mode at the upper side, the lower side, the front side, the rear side and the right side of the cage, so that open growth spaces are provided for the effective growth of bone substances and the like. The supporting structure portion of the porous titanium interbody fusion cage provided by the invention can independently perform functions thereof; and in addition, the supporting structure portion, which is matched with the pore structure portion, can achieve an effect of conducting intervertebral 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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IPC IPC(8): A61F2/44
CPCA61F2/30767A61F2/4455A61F2002/30199A61F2002/3093A61F2002/30985A61F2310/00023
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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