Thoracolumbarinterbody fusion cage

A fusion device and intervertebral technology, which is applied in the field of thoracolumbar fusion devices and spinal implants, can solve the problems of unfavorable open growth of bone and the inability to guarantee the stability of the overall structure, and achieve excellent anti-fatigue mechanics performance effect

Pending Publication Date: 2018-02-16
CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
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  • Abstract
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Problems solved by technology

This document also mentioned that the skeleton support of the cage needs the support of titanium alloy growth network. In fact, the elastic modulus of polyetheretherketone PEEK material is much smaller than that of titanium alloy material, which will lead to the stability of the overall structure not being guaranteed. At the same time, there are only hollow growth nets on the opposite sides, which is not conducive to meeting the needs of open growth of bone

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  • Thoracolumbarinterbody fusion cage
  • Thoracolumbarinterbody fusion cage
  • Thoracolumbarinterbody fusion cage

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Embodiment 1）

[0024] See Figure 1 to Figure 3 , The thoracolumbar intervertebral fusion device of this embodiment is a structural part that is integrally printed with titanium alloy materials by a 3D printer. The intervertebral fusion device is composed of a fusion device body 1 penetrating up and down and a lumbar cylindrical bone graft area 17 formed by the fusion device body 1 . The fuser body 1 is composed of annular walls with different wall thicknesses. The outer periphery of the fusion device body 1 is shaped like a waist circle, and the porosity of the fusion device body 1 reaches 50% to 80%. The annular wall of fusion vessel body 1 comprises front wall 13, left wall 14, rear wall 15 and right wall 16 connected in sequence, and right wall 16 is connected with front wall 13 again, wherein, the wall width of front wall 13 and rear wall 15 is the same , both are H1; the wall widths of the left wall 14 and the right wall 16 are the same, both are H3, and H3 is greater than H1. The o...

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Abstract

The invention discloses a thoracolumbar interbody fusion cage. The interbody fusion cage is a structural component formed by integrated printing of a titanium alloy material through a 3D printer and is composed of a vertical through fusion cage body and a bone grafting region formed by being surrounded by the fusion cage body; through holes are densely formed in the annular wall of the fusion cagebody in the vertical and front-back directions; a tooth surface cutting groove is preferentially formed in the annular wall of the fusion cage body; an instrument groove and an instrument hole are preferentially formed in the left wall of the fusion cage body, and a blind hole is preferentially formed in the inner surface of the right wall. The thoracolumbar interbody fusion cage is high in strength, the porosity of the infusion cage body reaches 50-80%, bone growth is facilitated, and the requirement for thoracolumbar interbody fusion surgery can be met.

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 thoracolumbar fusion device. Background technique [0002] With the aging population in our country, the incidence of lumbar degenerative diseases and other diseases is gradually increasing. Due to degeneration, spondylolisthesis or instability and other intervertebral disc diseases require intervertebral fusion. [0003] Chinese patent document CN204581605U (application number 201520265012.7) discloses an intervertebral fusion device, which includes a fusion device body approximately cuboid, and a bone graft hole vertically penetrated in the fusion device body, the upper surface and the lower surface of the fusion device body The surface is evenly provided with teeth. The front end surface of the fusion device body shrinks inward gradually and transitions smoothly through the rounded edge, and the rear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44B33Y80/00A61F2/30
CPCA61F2/30771A61F2/30942A61F2/4455B33Y80/00A61F2002/30108A61F2002/30772A61F2002/30985A61F2310/00023
Inventor 胡晓文吴忆峰韦冬
Owner CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
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