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Posterior lumbar spine fusion cage assembly

A cage and component technology, applied in joint implants, spinal implants, joint implants, etc., can solve the problems of difficult implantation of lumbar spine cages, poor lumbar space support and other problems

Active Publication Date: 2019-01-11
SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a rear-entry lumbar fusion device assembly to solve the shortcomings of existing lumbar fusion devices such as difficulty in implantation and poor support in the lumbar intervertebral space.

Method used

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  • Posterior lumbar spine fusion cage assembly
  • Posterior lumbar spine fusion cage assembly
  • Posterior lumbar spine fusion cage assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] Example: such as Figure 1 to Figure 3 As shown, a retrograde lumbar fusion cage assembly includes a fusion cage body 1 , a beater 2 and an ejector 3 .

[0035] The fuser body 1 can be printed by 3D printing technology. The printing material adopts medical materials, such as medical resin, etc. Generally, the fuser body 1 is ring-shaped, including circular, oval or other ring-shaped anomalies. In this implementation, the fuser body 1 used is designed to be oval. The oval cage body 1 has a length direction and a width direction.

[0036] The fusion cage body 1 is customized or 3D printed. The main reason and purpose is that the anatomical size of different patients is different. Traditional posterior implantation, the fusion cage body is located in the middle of the vertebral body, which may easily cause the fusion cage body 1 to sink. But everyone has a relatively hard ring structure around the vertebral body. If the two ends of the cage body 1 can be adapted to sup...

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PUM

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Abstract

The invention discloses a posterior lumbar spine fusion cage assembly, comprising a fusion cage body, wherein the fusion cage body is provided with a holding hole and is arranged in the middle of theposterior side of the fusion cage body; a groove arranged on the rear side of the fuser body; a knocking part arranged at the groove bottom of the groove; an opening arranged on the rear side of the fuser body; a notch arranged on the hole edge of the opening. The posterior lumbar spine fusion cage assembly of the present invention is provided with a knocking part in a groove, wherein the knockingpart is provided with two-directional step designs, one is a step cooperating with the knocker on the side, and the other is a step cooperating with the knocker on the side. The other is the staircase which cooperates with the knocker on the tail end and knocks forward, which is advantageous for the implantation of the fusion cage body.

Description

technical field [0001] The invention relates to the fields of medical equipment and the like, in particular to a retro-entry lumbar fusion device assembly. Background technique [0002] With the increasing aging of the global population, the incidence of lumbar degenerative diseases continues to increase. The world burden of disease shows that low back pain is the primary cause of human loss of labor. Eventually many patients require surgery. Lumbar intervertebral fusion has a definite curative effect and has been used for hundreds of years. It is the main means of treating such diseases. [0003] At present, the widely used lumbar interbody fusion includes: 1. Anterior lumbar interbody fusion: entering the intervertebral space from the front can more effectively distract and restore the height of the intervertebral space, and at the same time, the anterior approach can more thoroughly remove the degeneration The intervertebral disc, however, anterior access easily damages...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44A61F2/30
CPCA61F2/30942A61F2/4455A61F2002/30985
Inventor 赵杰吴爱悯张凯田海军程晓非周唐骏李训林韩辰陈辰陈智谦周益帆杨骁
Owner SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE