CN112674916A - Interbody fusion cage - Google Patents
Interbody fusion cage Download PDFInfo
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- CN112674916A CN112674916A CN202011502166.5A CN202011502166A CN112674916A CN 112674916 A CN112674916 A CN 112674916A CN 202011502166 A CN202011502166 A CN 202011502166A CN 112674916 A CN112674916 A CN 112674916A
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- 230000004927 fusion Effects 0.000 title claims abstract description 27
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 23
- 238000004062 sedimentation Methods 0.000 abstract description 5
- 230000036285 pathological change Effects 0.000 abstract description 2
- 231100000915 pathological change Toxicity 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 2
- 239000007943 implant Substances 0.000 abstract 1
- 230000009711 regulatory function Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000735 allogeneic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001045 lordotic effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010029174 Nerve compression Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007012 clinical effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035474 group of disease Diseases 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000005541 medical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000001032 spinal nerve Anatomy 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The invention provides an intersomatic fusion cage, which has large bone grafting amount, can realize initial stability without fixing a nail plate, has the sedimentation probability of the center of a cone larger than that of the edge, adopts bone filling in the center and is supported by the fusion cage at the periphery, thereby ensuring the height, providing mechanical support and reducing the sedimentation probability. This application adopts and implants the integration ware earlier, adjusts the mode that the size shape position of integration ware matches pathological change excision position, fills the bone toward U type position again, has the regulatory function to different excision sizes and shape.
Description
Technical Field
The invention relates to the field of medical instruments, in particular to an interbody fusion cage.
Background
Intervertebral fusion surgery is one of the most common surgical procedures for treating this group of diseases, and is performed as follows: first, the disc is removed to relieve spinal nerve compression, i.e., "decompression"; intervertebral stabilization, i.e., "reconstruction," is then reconstructed by implanting intervertebral fusion material into the intervertebral space. The clinical effect of "reconstruction" depends primarily on the intervertebral fusion material. Common intervertebral fusion materials include autogenous bone, allogeneic bone and intervertebral fusion device. The method adopts the autogenous bone to avoid the complications of the autogenous bone taking area (the incidence of disease is as high as 25 percent), adopts the allogeneic bone to avoid the related complications of the bone taking area, but has the risks of immunological rejection, disease transmission and the like.
With the progress of materials science and biomechanics, the interbody fusion cage is widely applied to the clinical treatment of spinal lesions. The intervertebral fusion device fuses adjacent vertebral bodies together by implanting bones or artificial bones into the gaps between the vertebral bodies, and the two vertebral bodies grow into a whole after a period of time. If the intervertebral space is only implanted with granular bones or artificial bones, no mechanical supporting force exists, the intervertebral space height cannot be maintained, so that the operation effect is poor, the fusion cage is implanted into the intervertebral space and can be used as a support body, and the function of maintaining the intervertebral space height is also realized. The current intervertebral fusion device mainly has the following defects: firstly, the bone grafting area is small, and the bone grafting amount and the fusion rate are influenced; secondly, subsidence easily occurs, and the intervertebral height and the lordotic angle are lost to influence the operation effect due to the fact that the intervertebral height and the lordotic angle are lost.
Therefore, there is a need for a cage that has a high bone mass, a low subsidence rate, and can accommodate different shapes between cones.
Disclosure of Invention
The invention provides an interbody fusion cage, and aims to provide a fusion cage which is large in bone planting quantity, low in sedimentation rate and capable of adapting to different interbody shapes.
In order to achieve the purpose, the invention provides an interstagon fusion cage, which comprises a base body, wherein one end of the base body is provided with a first angle adjusting part, and the base body is connected with the first angle adjusting part through a first angle combining part; one end of the first angle adjusting part, which is far away from the first angle combining part, is also connected with a first length adjusting part, and the first length adjusting part is connected with the first angle adjusting part through a length adjusting sliding block; the upper side and the lower side of one end, far away from the first angle adjusting part, of the first length adjusting part are respectively provided with a cone fixing wing;
the other end of the base body is provided with a second angle adjusting component, and the base body is connected with the second angle adjusting component through a second angle combining part; one end of the second angle adjusting part, which is far away from the second angle combining part, is also connected with a second length adjusting part, and the second length adjusting part is connected with the second angle adjusting part through a length adjusting sliding block; the upper side and the lower side of one end, far away from the second angle adjusting part, of the second length adjusting part are respectively provided with a cone fixing wing;
a front baffle is arranged between the first length adjusting part and the second length adjusting part, and a screw system is arranged between the front baffle and the base body; the center of the front baffle is provided with a fixed bolt groove, and a fixed bolt is arranged in the fixed bolt groove.
Furthermore, an angle rotating column is arranged inside the first angle combining part and the second angle combining part.
Further, a length adjusting sliding groove is formed in the first length adjusting part, a length adjusting limiting stopper is arranged in the length adjusting sliding groove, and the length adjusting limiting stopper is connected with the first length adjusting part; the first length adjustment member is identical in structure to the second length adjustment member.
Further, baffle clamping grooves are formed between the cone fixing wings on the upper side and the lower side of the first length adjusting part, and baffle clamping grooves are also formed between the cone fixing wings on the upper side and the lower side of the second length adjusting part; the front baffle is fixed between the first length adjusting part and the second length adjusting part through the baffle clamping groove.
Furthermore, a baffle clamping pin is arranged in the baffle clamping groove.
Furthermore, the cone fixing wings are provided with fixing screws.
Further, the screw system comprises a base body length adjusting rod and a depth adjusting screw rod; the base body length adjusting rod is hollow and provided with internal threads, the outer surface of the depth adjusting screw rod is provided with screw threads, and the internal threads are embedded with the screw threads; one end of the base body length adjusting rod is connected with the base body, and the other end of the base body length adjusting rod is sleeved on the surface of the depth adjusting screw rod; one end of the surface of the depth adjusting screw rod is connected with the base body length adjusting rod, and the other end of the surface of the depth adjusting screw rod is connected with the fixing bolt.
Furthermore, one end of the depth adjusting screw rod, which is close to the fixing bolt, is provided with a fixing part, and the depth adjusting screw rod is connected with the fixing bolt through the fixing part; and a depth adjusting screw rod rotating groove is arranged on the fixed part.
The scheme of the invention has the following beneficial effects: the invention has large bone grafting amount, can realize initial stability without fixing a nail plate, has the sedimentation probability of the center of the cone larger than that of the edge, adopts bone filling in the center and is supported by the fusion cage on the periphery, thereby ensuring the height, providing mechanical support and reducing the sedimentation probability. The scheme adopts the mode of firstly implanting the fusion cage, adjusting the size, the shape and the position of the fusion cage to be matched with the excision part of the pathological change, and then filling bones into the U-shaped part, thereby having the function of adjusting the size and the shape of different excision parts.
Drawings
FIG. 1 is a schematic diagram of a structural main view of the present invention;
FIG. 2 is an exploded view of the present invention;
FIG. 3 is an undeployed top view of the present invention;
FIG. 4 is an expanded top view of the present invention;
FIG. 5 is a schematic illustration of a bone graft according to the present invention;
FIG. 6 is a bone grafting completion view according to the present invention;
FIG. 7 is a schematic view of a retaining structure of the baffle of the present invention;
FIG. 8 is a schematic view of the length slide configuration of the present invention;
fig. 9 is a schematic view of a bolt fastening structure of the present invention.
Description of the reference numerals
1-a substrate; 2-a first angle adjustment component; 3-a second angle adjustment component; 4-a first length adjustment member; 5-a second length adjustment member; 6-depth adjusting screw; 7-front baffle; 8-fixing the bolt; 9-a first angled junction; 10-a second angle binding site; 11-adjusting the length of the substrate; 12-cone fixed wings; 13-length adjustment slider; 14-length adjustment limiter; 15-length adjustment sliding grooves; 16-a baffle slot; 17-angular rotation column; 18-baffle bayonet lock; 19-a set screw; 20-a fixation site; 21-screw thread; 22-depth adjusting screw rotating groove; 23-fixing bolt slot; 24-lower cone; 25-upper cone.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides an interstagon fusion cage aiming at the existing problems, which comprises a base body 1, wherein one end of the base body 1 is provided with a first angle adjusting part 2, and the base body 1 is connected with the first angle adjusting part 2 through a first angle combining part 9; one end of the first angle adjusting part 2, which is far away from the first angle combining part 9, is also connected with a first length adjusting part 4, and the first length adjusting part 4 is connected with the first angle adjusting part 2 through a length adjusting sliding block 13; the upper side and the lower side of one end, away from the first angle adjusting part 2, of the first length adjusting part 4 are respectively provided with a cone fixed wing 12; a second angle adjusting component 3 is arranged at the other end of the base body 1, and the base body 1 is connected with the second angle adjusting component 3 through a second angle combining part 10; a second length adjusting component 5 is further connected to one end, far away from the second angle combining part 10, of the second angle adjusting component 3, and the second length adjusting component 5 is connected with the second angle adjusting component 3 through a length adjusting sliding block 13; the upper side and the lower side of one end of the second length adjusting part 5 far away from the second angle adjusting part 6 are respectively provided with a cone fixed wing 12; a front baffle 7 is arranged between the first length adjusting part 4 and the second length adjusting part 5, and a screw system is arranged between the front baffle 7 and the base body 1; the center of the front baffle 7 is provided with a fixed bolt groove 23, and a fixed bolt 19 is arranged in the fixed bolt groove 23.
Wherein, an angle rotating column 17 is arranged inside the first angle combining part 9 and the second angle combining part 10; a length adjusting sliding groove 15 is formed in the first length adjusting part 4, a length adjusting stopper 14 is arranged in the length adjusting sliding groove 15, and the length adjusting stopper 14 is connected with the first length adjusting part 4; the first length adjusting part 4 and the second length adjusting part 5 are identical in structure; baffle clamping grooves 16 are formed between the cone fixing wings 12 on the upper side and the lower side of the first length adjusting part 4, and baffle clamping grooves 16 are also formed between the cone fixing wings 12 on the upper side and the lower side of the second length adjusting part 5; the front baffle 7 is fixed between the first length adjusting part 4 and the second length adjusting part 5 through the baffle clamping groove 16.
A baffle clamping pin 18 is also arranged in the baffle clamping groove 16; the cone fixing wings 12 are provided with fixing screws 19; the screw system comprises a base body length adjusting rod 11 and a depth adjusting screw 6; the base body length adjusting rod 11 is hollow and provided with internal threads, the outer surface of the depth adjusting screw 6 is provided with screw threads 21, and the internal threads are embedded with the screw threads 21; one end of the base body length adjusting rod 11 is connected with the base body 1, and the other end of the base body length adjusting rod is sleeved on the surface of the depth adjusting screw rod 6; one end of the surface of the depth adjusting screw 6 is connected with the base length adjusting rod 11, and the other end of the surface of the depth adjusting screw is connected with the fixing bolt 8; one end of the depth adjusting screw 6, which is close to the fixing bolt 8, is provided with a fixing part 20, and the depth adjusting screw 6 is connected with the fixing bolt 8 through the fixing part 20; the fixed part 20 is provided with a depth adjusting screw rotating groove 22.
The present application further provides embodiments of the intersomatic fusion cage, comprising:
step one, as shown in fig. 5, the cone fixing wing 12 is pushed to rotate the second angle combining part 10, the second angle adjusting part 3 and the second length adjusting part 5 generate angle change, and the first angle adjusting part 2 and the first length adjusting part 4 on the other side generate angle change in the same way.
And step two, implanting the intervertebral fusion cage into the intervertebral disc position, rotating the depth adjusting screw rotating groove 22 by using a straight line, so that the depth adjusting screw 6 rotates, and enabling the second angle adjusting component 3 and the second length adjusting component 5 to generate relative displacement through the screw thread 21 and the matrix length adjusting rod 11, and similarly, enabling the first angle adjusting component 2 and the first length adjusting component 4 to generate displacement. (the structure of the displacement is shown in FIG. 8)
And step three, continuously adjusting the front and back diameters and the opening angle of the product to match, screwing the two cone fixing wings 12 on one side into the fixing screws 19, and fixing the structure on one side.
And step four, reaching the step in the figure 5, and grafting bone into the U-shaped interior of the product. As shown in fig. 7, the front barrier 7 of an appropriate length is selected to be fixed to the second length adjustment member 5 and the first length adjustment member 4.
Step five, screwing in a fixing screw 19 to fix the other side as in step three, and screwing in a fixing bolt 8 to fix the front baffle 7 as shown in fig. 6. The intervertebral fusion device is stabilized by fixing the middle screw system and fixing the outer cone fixing wings into the upper cone and the lower cone.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. An interstagon fusion cage is characterized by comprising a base body, wherein one end of the base body is provided with a first angle adjusting part, and the base body is connected with the first angle adjusting part through a first angle combining part; one end of the first angle adjusting part, which is far away from the first angle combining part, is also connected with a first length adjusting part, and the first length adjusting part is connected with the first angle adjusting part through a length adjusting sliding block; the upper side and the lower side of one end, far away from the first angle adjusting part, of the first length adjusting part are respectively provided with a cone fixing wing;
the other end of the base body is provided with a second angle adjusting component, and the base body is connected with the second angle adjusting component through a second angle combining part; one end of the second angle adjusting part, which is far away from the second angle combining part, is also connected with a second length adjusting part, and the second length adjusting part is connected with the second angle adjusting part through a length adjusting sliding block; the upper side and the lower side of one end, far away from the second angle adjusting part, of the second length adjusting part are respectively provided with a cone fixing wing;
a front baffle is arranged between the first length adjusting part and the second length adjusting part, and a screw system is arranged between the front baffle and the base body; the center of the front baffle is provided with a fixed bolt groove, and a fixed bolt is arranged in the fixed bolt groove.
2. The intersomatic cage according to claim 1, wherein the first and second angular coupling portions are internally provided with angular rotation columns.
3. The intersomatic cage according to claim 1, wherein the first length adjustment member has a length adjustment sliding groove therein, and a length adjustment stopper is provided in the length adjustment sliding groove and connected to the first length adjustment member; the first length adjustment member is identical in structure to the second length adjustment member.
4. The interscalene fusion device according to claim 1, wherein baffle clamping grooves are formed between the upper and lower pyramid fixing wings of the first length adjusting part, and baffle clamping grooves are also formed between the upper and lower pyramid fixing wings of the second length adjusting part; the front baffle is fixed between the first length adjusting part and the second length adjusting part through the baffle clamping groove.
5. The intersomatic cage of claim 4, wherein the baffle-retaining groove is further provided with a baffle-retaining pin.
6. The intersomatic cage according to claim 1, wherein the cone fixing wings are provided with fixing screws.
7. The intersomatic cage according to claim 1, wherein the screw system comprises a base length adjustment rod and a depth adjustment screw; the base body length adjusting rod is hollow and provided with internal threads, the outer surface of the depth adjusting screw rod is provided with screw threads, and the internal threads are embedded with the screw threads; one end of the base body length adjusting rod is connected with the base body, and the other end of the base body length adjusting rod is sleeved on the surface of the depth adjusting screw rod; one end of the surface of the depth adjusting screw rod is connected with the base body length adjusting rod, and the other end of the surface of the depth adjusting screw rod is connected with the fixing bolt.
8. The intersomatic cage according to claim 7, wherein the depth adjusting screw has a fixing portion at an end thereof adjacent to the fixing bolt, and the depth adjusting screw is connected to the fixing bolt through the fixing portion; and a depth adjusting screw rod rotating groove is arranged on the fixed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011502166.5A CN112674916B (en) | 2020-12-17 | 2020-12-17 | Intervertebral fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011502166.5A CN112674916B (en) | 2020-12-17 | 2020-12-17 | Intervertebral fusion cage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112674916A true CN112674916A (en) | 2021-04-20 |
| CN112674916B CN112674916B (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011502166.5A Active CN112674916B (en) | 2020-12-17 | 2020-12-17 | Intervertebral fusion cage |
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| Country | Link |
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| CN (1) | CN112674916B (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2140944A1 (en) * | 1994-01-26 | 1995-07-27 | Michel Lahille | Intersomatic Vertebral Cage |
| CN101015477A (en) * | 2007-02-16 | 2007-08-15 | 王建华 | Minimally Invasive lumbar fusion device and its use method |
| CN102316827A (en) * | 2008-12-10 | 2012-01-11 | 考林创新股份有限公司 | Lockable expanding spine cage |
| CN103356311A (en) * | 2012-04-09 | 2013-10-23 | 韩国Bm株式会社 | Artificial disk for transforaminal lumbar interbody fusion (TLIF) and insertion assembly thereof |
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| CN107438417A (en) * | 2014-12-30 | 2017-12-05 | Ex技术有限责任公司 | Extensible Invasive lumbar fusion device |
| CN107773331A (en) * | 2016-08-29 | 2018-03-09 | 上海交通大学医学院附属第九人民医院 | A kind of lumbar intervertebral fusion device |
| CN107997859A (en) * | 2017-12-01 | 2018-05-08 | 青岛市市立医院 | A kind of spinal fixation fusion device |
| CN109157311A (en) * | 2014-07-27 | 2019-01-08 | 温州医科大学附属第二医院、温州医科大学附属育英儿童医院 | A kind of embedded with minimal invasion shape memory Invasive lumbar fusion device |
| CN109925102A (en) * | 2019-04-12 | 2019-06-25 | 北京大学第三医院 | Lumbar Fusion prosthese |
| CN110025411A (en) * | 2018-06-12 | 2019-07-19 | 深圳市立心科学有限公司 | Invasive lumbar fusion device with elastic portion |
| CN110025412A (en) * | 2019-05-21 | 2019-07-19 | 谢林 | The minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under a kind of Percutaneous endoscopic |
| KR102147077B1 (en) * | 2019-10-07 | 2020-08-24 | (주)엘앤케이바이오메드 | Expandable Spinal Fusion Cage |
-
2020
- 2020-12-17 CN CN202011502166.5A patent/CN112674916B/en active Active
Patent Citations (16)
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|---|---|---|---|---|
| CA2140944A1 (en) * | 1994-01-26 | 1995-07-27 | Michel Lahille | Intersomatic Vertebral Cage |
| CN101015477A (en) * | 2007-02-16 | 2007-08-15 | 王建华 | Minimally Invasive lumbar fusion device and its use method |
| CN102316827A (en) * | 2008-12-10 | 2012-01-11 | 考林创新股份有限公司 | Lockable expanding spine cage |
| CN103356311A (en) * | 2012-04-09 | 2013-10-23 | 韩国Bm株式会社 | Artificial disk for transforaminal lumbar interbody fusion (TLIF) and insertion assembly thereof |
| CN105025845A (en) * | 2012-12-14 | 2015-11-04 | 费瑟特-链接公司 | Laterally expandable intervertebral fusion implant |
| EP3030198A1 (en) * | 2013-08-09 | 2016-06-15 | Globus Medical, Inc. | Articulating expandable intervertebral implant |
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| CN107411855A (en) * | 2017-08-30 | 2017-12-01 | 西安市红会医院 | Atlas and axis fusion of intervertebral joints device |
| CN107997859A (en) * | 2017-12-01 | 2018-05-08 | 青岛市市立医院 | A kind of spinal fixation fusion device |
| CN110025411A (en) * | 2018-06-12 | 2019-07-19 | 深圳市立心科学有限公司 | Invasive lumbar fusion device with elastic portion |
| CN109925102A (en) * | 2019-04-12 | 2019-06-25 | 北京大学第三医院 | Lumbar Fusion prosthese |
| CN110025412A (en) * | 2019-05-21 | 2019-07-19 | 谢林 | The minimally invasive expanding Invasive lumbar fusion device of novel cervical vertebra under a kind of Percutaneous endoscopic |
| KR102147077B1 (en) * | 2019-10-07 | 2020-08-24 | (주)엘앤케이바이오메드 | Expandable Spinal Fusion Cage |
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| CN112674916B (en) | 2022-12-27 |
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Inventor after: Jiang Jinwei Inventor after: Zou Weimin Inventor after: Guo Kaixuan Inventor after: Hou Kai Inventor after: Liu Jiang Inventor before: Jiang Jinwei Inventor before: Zou Weimin Inventor before: Xiang Xiaowei Inventor before: Guo Kaixuan Inventor before: Shen Yu Inventor before: Wang Kai Inventor before: Hou Kai Inventor before: Song Kun Inventor before: Liu Jiang |
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