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Cervical fusion cage

A fusion device and cervical spine technology, applied in the direction of spinal implants, etc., can solve the problems of high price and limitations, achieve strong applicability, reduce soft tissue damage, and avoid complications related to bone grafting

Pending Publication Date: 2019-09-17
重庆医科大学附属第三医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Most imported cervical intervertebral fusion devices are made of PEEK composite material, which is expensive (about 30,000 yuan / set), and the design of this product is based on the cervical anatomical structure data of foreign populations. For domestic populations, its application may will have limitations

Method used

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The invention provides a cervical fusion device, the material of the cervical fusion device is porous tantalum; see Figure 1-4 , the structure of the cervical fusion device is a box-shaped structure; the upper surface of the cervical fusion device is convex, and the lower surface is straight;

[0033] see figure 2 , the cervical fusion cage includes a central part 1 and a peripheral wall 2, the central part 1 is arranged in the middle of the cervical fusion cage, and the peripheral wall 2 is arranged around the central part 1;

[0034] The surrounding wall 2 is made of porous tantalum with a porosity of 20%-30%; the central part 1 is made of porous tantalum with a porosity of 70%-80%;

[0035] The central part of the cervica...

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Abstract

The present invention discloses a cervical fusion cage. A material of the cervical fusion cage is porous tantalum; s structure of the cervical fusion cage is a box-shaped structure; an upper surface of the cervical fusion cage is convex, and a lower surface is flat; the cervical fusion cage comprises a central part and a peripheral wall, the central part is arranged in middle of the cervical fusion cage, and a periphery of the central part is provided with the peripheral wall; the peripheral wall is manufactured from the porous tantalum with a porosity of 20%-30%; the central part is manufactured from the porous tantalum with a porosity of 70%-80%; and the central part of the cervical fusion cage is provided with a vertical telescopic barb. The provided cervical vertebra fusion does not need bone grafting, is free of a bone grafting region, avoids bone grafting related complications, and is made of the porous tantalum material. The porous tantalum, also known as a bone trabecular metal, has a three-dimensional structure communicating with similar pores of human cancellous bones, is relatively high in porosity, can promote nutrient exchange in the pores, is more conducive to bone ingrowth, promotes bone integration and increases a fusion rate.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a novel bioactive trabecular bone metal cervical fusion device. Background technique [0002] Cervical degenerative disease is a common and frequently-occurring disease. With the change of lifestyle (such as the increase of long-term desk workers) and the aggravation of population aging, the prevalence of cervical spondylosis continues to rise, and more and more patients need surgical intervention. The current surgical methods mainly include anterior cervical decompression and fusion (ACDF) and artificial cervical disc replacement (ACDR). Because ACDR has strict indications and many contraindications and is expensive, ACDF is still the most commonly used operation. Compared with autologous bone graft, the use of intervertebral fusion device can reduce autologous bone graft-related complications (such as infection, chronic pain, etc.), and at the same time, it can imme...

Claims

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Application Information

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IPC IPC(8): A61F2/44
CPCA61F2/4455
Inventor 蒋电明杜兴温亚枫李凯陈司南唐越
Owner 重庆医科大学附属第三医院
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