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Interface type interbody fusion cage

An intervertebral cage and interface technology, applied in the direction of spinal implants, etc., can solve the problems of national loss, long healing time, long distance, etc., and achieve the effect of reducing braking time, reducing physical and mental pain, and improving fusion rate.

Active Publication Date: 2016-02-03
WEST CHINA HOSPITAL SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] ACDF has been widely used to treat various cervical diseases for 60 years. Traditional intervertebral discectomy and intervertebral bone graft fusion emphasize "vertebral fusion"—bone grows and heals from the upper and lower vertebral bodies to the center. However, due to anatomical and physiological reasons, the upper and lower The distance between the vertebral bodies is far away, the "crawling replacement healing journey" of the bone is long and difficult (about 1cm), and the healing time is long. The patient needs to wear a cervical collar for 3-6 months, which brings great psychological and physical pain to the patient. Great discomfort, and unable to return to work in time, bringing losses to the family, society, and the country

Method used

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  • Interface type interbody fusion cage
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  • Interface type interbody fusion cage

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Experimental program
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Effect test

Embodiment 1

[0024] Such as figure 1 , 2 , 3, the interface type intervertebral fusion device disclosed by the present invention includes a fusion part A, a fusion part B and a connecting part connected between the fusion part A and the fusion part B, and the outer end surfaces of the fusion part A and the fusion part B They are all reticular porous structures, the mesh A1 of the mesh porous structure on the outer end surface of the fusion part A axially penetrates the fusion part A, the inner opening of the mesh A1 is larger than the outer opening, and runs through the network of the mesh porous structure on the outer end surface of the fusion part B The hole B2 axially penetrates the fusion part B, and the inner opening of the mesh B2 is larger than the outer opening. There is a through hole A3 in the center of the fuser body. The through hole A3 axially penetrates the fusion part A, the fusion part B and the connection part. The diameter of the through hole A3 is larger than the diamet...

Embodiment 2

[0027] The difference between this embodiment and embodiment 1 is: as image 3 , 4 As shown, the connecting part is a hollow cylinder, and the fusion part A and the fusion part B have a through hole A3 axially in the center, and the through hole A3 communicates with the inside of the connecting part. A3 is opposite, and the wall thickness of the connecting part is 1-2 mm. Since the connection part is hollow, a support column 4 is provided in the connection part, and the support column 4 can be arranged inside the connection part and can also be integrated with the wall of the connection part to act as a reinforcing rib. One end of the support column 4 is connected to the fusion part A The other end of the support column 4 is connected to the fusion part B, and there are at least two support columns 4. Preferably, there are four supporting columns 4, which are evenly distributed on the same circumference, and the circumference, the through hole A3, and the connecting portion ...

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Abstract

The invention relates to an interface type interbody fusion cage. The interface type interbody fusion cage comprises a fusion part A, a fusion part B and a connection part connected between the fusion part A and the fusion part B. The outer end face of the fusion part A and the outer end face of the fusion part B are each of a porous mesh structure, meshes A of the porous mesh structure of the outer end face of the fusion part A penetrate through the fusion part A axially, an opening in the inner side of each mesh A is larger than an opening in outer side of the mesh A, meshes B of the porous mesh structure of the outer end face of the fusion part B penetrate through the fusion part B axially, and an opening in the inner side of each mesh B is larger than an opening in outer side of the mesh B. As the inner parts of the meshes A and the meshes B in the end faces are larger than the outer parts, the vertebral body can not be pulled out of an fusion cage body once bones grow in from the meshes A and the meshes B, the bones grow in from the two end faces of the fusion cage body, and therefore the fusion cage body plays the role of a supporting connector. The interface type interbody fusion cage greatly shortens the bone growth distance and healing time and increases the fusion rate, so that postoperative immobilization time is shortened for a patient, and mental and physical pain of the patient is alleviated.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an interface type intervertebral fusion device. Background technique [0002] ACDF has been widely used in the treatment of various cervical diseases for 60 years. Traditional intervertebral discectomy and intervertebral bone graft fusion emphasizes "vertebral fusion"—bone grows and heals from the upper and lower vertebral bodies to the center. However, due to anatomical and physiological reasons, the upper and lower The distance between the vertebral bodies is relatively long, the "crawling replacement healing journey" of the bone is long and difficult (about 1cm), and the healing time is long. The patient needs to wear a cervical collar for 3-6 months, which brings great psychological and physical pain to the patient. Great discomfort, and can not return to work in time, bringing losses to the family, society, and the country. Contents of the invention [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/44
Inventor 马立泰杨毅李玲利刘浩洪瑛宁宁
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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