CN212699240U - Intervertebral fusion cage - Google Patents
Intervertebral fusion cage Download PDFInfo
- Publication number
- CN212699240U CN212699240U CN202020816566.2U CN202020816566U CN212699240U CN 212699240 U CN212699240 U CN 212699240U CN 202020816566 U CN202020816566 U CN 202020816566U CN 212699240 U CN212699240 U CN 212699240U
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- Prior art keywords
- main part
- side wall
- main body
- fixing nail
- staples
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- Expired - Fee Related
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- 230000004927 fusion Effects 0.000 title claims abstract description 35
- 238000003780 insertion Methods 0.000 claims description 8
- 230000037431 insertion Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 2
- 230000002980 postoperative effect Effects 0.000 description 5
- 210000000845 cartilage Anatomy 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010016654 Fibrosis Diseases 0.000 description 1
- 208000003618 Intervertebral Disc Displacement Diseases 0.000 description 1
- 208000007103 Spondylolisthesis Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004761 fibrosis Effects 0.000 description 1
- 210000003035 hyaline cartilage Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 206010025005 lumbar spinal stenosis Diseases 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 208000005198 spinal stenosis Diseases 0.000 description 1
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Abstract
Interbody fusion cage is including the main part that is the cuboid, the main part includes main part front end, main part rear end, main part left side wall, main part right side wall, main part upper surface and main part lower surface, the inside cavity that is provided with of main part, the cavity link up the left side wall and the main part right side wall of main part, main part upper surface and main part lower surface all are provided with a plurality of staples, are provided with a plurality of growth slots between a plurality of staples, the main part front end is provided with the conical end that inserts, and the rear end of main part is provided with the regulation screw. The utility model provides an interbody fusion cage, which can improve the fusion rate of the upper and lower vertebral bodies and ensure the treatment effect of the vertebral body integration operation.
Description
Technical Field
The utility model relates to an interbody fusion cage, which belongs to the technical field of medical instruments.
Background
Human intervertebral disc contains upper and lower endplate, and the mid portion center is the nucleus pulposus periphery and is the fibrous ring, and the triplex forms "sandwich" appearance structure, and the endplate is the cartilage structure-fibre cartilage and hyaline cartilage of 1mm thickness, and when growing along with age, the proportion of fibre cartilage increases gradually, and the intervertebral disc easily takes place pathological changes such as lumbar spondylolisthesis, lumbar spinal stenosis and lateral curvature ability and disc herniation, can adopt intervertebral integrator to treat this moment. As an orthopedic implantable medical instrument, an intervertebral fusion device is one of main implants for realizing the fusion of adjacent intervertebral spaces of a spine, and the adjacent vertebral body osseous fusion rate is one of important indexes for evaluating the effect of an intervertebral fusion operation. The intervertebral fusion device used at present is generally in a wedge-shaped structure, the upper surface and the lower surface of the wedge-shaped structure are communicated, the upper surface and the lower surface are generally provided with raised ribs, the design idea of the structure is that a large through hole which is communicated from top to bottom is used for enabling end plates of upper intervertebral discs and lower intervertebral discs to enter a hole for fusion, and the raised ribs are used for increasing friction force to prevent the fusion device from shifting. However, the regeneration capacity of the end plate is weakened due to the fibrosis process of the end plate, so that the effect of the existing intervertebral fusion device after use is not satisfactory, and the anti-displacement effect is not good due to the adoption of a convex rib-shaped structure, so that the postoperative fusion rate of the existing intervertebral fusion device is lower, according to the literature, the 1-year postoperative fusion rate of the existing Transforaminal Lumbar Interbody Fusion (TLIF) is about 80 percent, and the fusion rate of multi-segment fusion is lower; the incidence of the formation of the artificial joints after Anterior Lumbar Interbody Fusion (ALIF) is greatly changed, and the incidence is 3-58%, especially for patients who smoke one packet per day, the non-fusion rate is higher.
Disclosure of Invention
The utility model aims to provide a: provides an intervertebralesis fusion device which can improve the fusion rate of the upper and lower vertebral bodies and ensure the treatment effect of the vertebral body integration operation.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an interbody fusion cage comprises a cuboid main body, wherein the main body comprises a main body front end, a main body rear end, a main body left side wall, a main body right side wall, a main body upper surface and a main body lower surface, a cavity is arranged in the main body and penetrates through the main body left side wall and the main body right side wall, a plurality of fixing nails are arranged on the main body upper surface and the main body lower surface, a plurality of growth holes are formed among the fixing nails, a conical insertion end is arranged at the main body front end, and an adjusting screw hole is arranged at the main body rear end; furthermore, a tapered insertion end arranged at the front end of the main body is in a square taper shape, and the top of the tapered insertion end is provided with a blunt round angle; furthermore, the fixing nail is an inverted cone-shaped fixing nail, the side surface of the inverted cone-shaped fixing nail is inwards concave towards the conical middle shaft to form an inverted cone-shaped body with a herringbone longitudinal section, and the top of the fixing nail is provided with a pointed insertion end; further, the width of the main body is 8-12 mm, the height of the main body is 7-12mm, the length of the main body is 20-28mm, the diameter of the growing holes is 1-3mm, and the distance between the growing holes is 1-3 mm.
The utility model discloses an actively beneficial technological effect lies in: the utility model discloses a set up sharp-pointed staple on interbody fusion cage, the end plate is punctureed to the staple when implanting, can make the end plate of not fibre in the end plate add to fuse the process in, improve and fuse speed and postoperative and fuse the rate, a plurality of growth hole total areas of vertical setting far are less than current interbody fusion cage's vertical through-hole area, reduced the end plate and fused required growth area, more do benefit to the quick recovery of postoperative, the cavity of horizontal setting provides the required fusion volume of later stage vertebra fusion. The utility model discloses can guarantee the stability in intervertebral space and promote the bone fusion, have bigger fusion volume between upper and lower centrum, can effectively improve the postoperative fusion rate of interbody fusion cage.
Drawings
Fig. 1 is a schematic structural view of a front end direction of a main body according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a rear end direction of the main body according to an embodiment of the present invention.
Detailed Description
In order to explain the utility model more fully, the following embodiment examples of the present invention are provided, which are only for the explanation of the present invention and do not limit the scope of the present invention.
The invention is explained in further detail with reference to the drawings, in which: 1. a main body; 2. a blunt rounded head; 3. a growing hole; 4. a cavity; 5. fixing nails; 6. a tapered insertion end; 7. and adjusting the screw hole.
As shown in the figure: the utility model provides an interbody fusion cage, including the main part 1 that is the cuboid, the main part includes that the square cone of main part front end inserts end 6, the main part rear end is provided with adjusts screw 7, the inside cavity 4 that link up main part left side wall and right side wall that is provided with of main part, main part upper surface and main part lower surface all are provided with a plurality of obconical staple 5, the obconical staple side is to conical axis indent formation longitudinal section for the back taper body of human font, there is the point thorn form at back taper body top to insert the end, be provided with a plurality of growth holes 3 between a plurality of staples, the top that the square cone that the main part front end set up inserted the end is provided with blunt fillet 2.
After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.
Claims (4)
1. An intervertebral cage, comprising: interbody fusion cage is including the main part that is the cuboid, the main part includes main part front end, main part rear end, main part left side wall, main part right side wall, main part upper surface and main part lower surface, the inside cavity that is provided with of main part, the cavity link up the left side wall and the main part right side wall of main part, main part upper surface and main part lower surface all are provided with a plurality of staples, are provided with a plurality of growth slots between a plurality of staples, the main part front end is provided with the conical end that inserts, and the rear end of main part is provided with the regulation screw.
2. An intersomatic cage according to claim 1, characterized in that: the tapered insertion end at the front end of the main body is in a square taper shape, and the top of the tapered insertion end is provided with a blunt round angle.
3. An intersomatic cage according to claim 1, characterized in that: the fixing nail is an inverted cone-shaped fixing nail, the side face of the inverted cone-shaped fixing nail is inwards concave towards the conical middle shaft to form an inverted cone-shaped body with a herringbone longitudinal section, and a spine-shaped insertion end is arranged at the top of the fixing nail.
4. An intersomatic cage according to claim 1, characterized in that: the width of the main body is 8-12 mm, the height of the main body is 7-12mm, the length of the main body is 20-28mm, the diameter of the growing holes is 1-3mm, and the distance between the growing holes is 1-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020816566.2U CN212699240U (en) | 2020-05-17 | 2020-05-17 | Intervertebral fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020816566.2U CN212699240U (en) | 2020-05-17 | 2020-05-17 | Intervertebral fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212699240U true CN212699240U (en) | 2021-03-16 |
Family
ID=74946031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020816566.2U Expired - Fee Related CN212699240U (en) | 2020-05-17 | 2020-05-17 | Intervertebral fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212699240U (en) |
-
2020
- 2020-05-17 CN CN202020816566.2U patent/CN212699240U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210316 |
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| CF01 | Termination of patent right due to non-payment of annual fee |