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Lumbar intervertebral fusion device

A fusion device and lumbar spine technology, applied in the direction of spinal implants, etc., can solve the problems of adverse effects on the stability of the main body structure of the fusion device, and achieve the effect of excellent anti-fatigue mechanical properties

Pending Publication Date: 2018-01-26
CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the fusion device has designed a hollow main body cavity inside its main body, it is unnecessary to set up a bone graft window, and setting a bone graft window will have an adverse effect on the structural stability of the fusion body

Method used

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  • Lumbar intervertebral fusion device
  • Lumbar intervertebral fusion device
  • Lumbar intervertebral fusion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0027] Such as figure 1 and figure 2 As shown, the lumbar 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 that penetrates up and down and a bone graft area 17 surrounded by the fusion device body 1, that is, the fusion device body 1 is composed of an annular wall with the same wall thickness, so that the fusion device body The cross-section of 1 is a ring with the same thickness. The shape of the periphery of the cage body 1 resembles that of the waist and kidney, and the porosity of the cage body 1 reaches 50% to 80%. The annular wall of the cage body 1 includes a front wall 13 , a left wall 14 , a rear wall 15 and a right wall 16 connected in sequence, and the right wall 16 is connected with the front wall 13 again. The outer surface of the cage body 1 can be divided into a bone graft area surface and a non-...

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Abstract

The invention discloses a lumbar intervertebral fusion device. The lumbar intervertebral fusion device is a structural component formed by integrated printing of titanium alloy through a 3D printer, and is composed of a vertical-through fusion device body and a bone grafting region surrounded by the fusion device body; through holes are densely formed in an annular wall of the fusion device body in the up-down and front-back direction; an instrument groove and an instrument hole are preferentially formed in the right wall of the fusion device body, and blind holes are preferentially formed inthe inner surfaces of the left wall and the right wall. The lumbar intervertebral fusion device is high in strength, the porosity of the fusion device body reaches 50-80%, bone growth is facilitated,and the requirement for the lumbar intervertebral 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 lumbar 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 CN203736351U (application number 201320816110.6) discloses a lumbar fusion device for transforaminal approach, including a main body and a developing needle, the main body includes an anterior side wall, a posterior side wall, an upper surface, a lower surface, an anterior segment and At the end, the interior of the main body is hollow to form a main body cavity: the upper surface and the lower surface are arc-shaped convex surfaces as a whole; the front side wall and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
Inventor 吴忆峰尹超韦冬
Owner CHANGZHOU WASTON MEDICAL APPLIANCE CO LTD
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