CN219089598U - Lumbar facet joint fusion fixer - Google Patents
Lumbar facet joint fusion fixer Download PDFInfo
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- CN219089598U CN219089598U CN202223532321.5U CN202223532321U CN219089598U CN 219089598 U CN219089598 U CN 219089598U CN 202223532321 U CN202223532321 U CN 202223532321U CN 219089598 U CN219089598 U CN 219089598U
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- 230000004927 fusion Effects 0.000 title claims abstract description 113
- 210000002517 zygapophyseal joint Anatomy 0.000 title claims abstract description 22
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 34
- 230000002512 anti-withdrawal effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- 238000001356 surgical procedure Methods 0.000 description 5
- 239000004696 Poly ether ether ketone Substances 0.000 description 3
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 3
- 238000002513 implantation Methods 0.000 description 3
- 230000000399 orthopedic effect Effects 0.000 description 3
- 229920002530 polyetherether ketone Polymers 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010061619 Deformity Diseases 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 208000028389 Nerve injury Diseases 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007850 degeneration 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
- 230000004054 inflammatory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008764 nerve damage Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/90—Guides therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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Abstract
The utility model relates to the technical field of medical appliances, in particular to a lumbar facet joint fusion fixator. The articular process fusion device comprises a fusion device main body and a fixed guide plate, wherein a bone grafting groove and a developing wire mounting groove are formed in the thickness direction of the fusion device main body, the developing wire mounting groove is positioned on one side of the bone grafting groove, developing wires are arranged in the developing wire mounting groove, and anti-slip protrusions are arranged on two end faces of the thickness direction of a fusion device vertebral body; the fixing guide plate is arranged on one side of the fusion device main body, extends along the thickness direction of the fusion device main body, forms a T-shaped structure with the fusion device, and is provided with a screw mounting hole; the T-shaped structure design between the fixed guide plate and the fusion device main body is beneficial to convenient installation, has good structural stability after installation, is matched with the arrangement of the anti-slip protrusions, enhances the friction force with bone surface contact, can effectively prevent movement, and can facilitate the observation and positioning under X-rays by arranging the developing mark in the fusion device.
Description
Technical Field
The utility model relates to the technical field of medical appliances, in particular to a lumbar facet joint fusion fixator.
Background
The lumbar fusion technique combined with pedicle screw fixation is widely applied to reconstruction of lumbar stability in spinal surgery, is an effective way for treating lumbar degeneration, trauma, deformity, tumor, inflammation and other diseases, and has become one of the basic surgical techniques of spinal surgery. The lumbar fusion procedures commonly used are largely divided into: posterolateral fusion (PLF), intervertebral fusion, 360 ° fusion, and facet joint fusion. PLF is the fusion between transverse processes in the traditional sense, the fusion range is mainly outside the articular processes and between transverse processes, the development is most common, but the requirement on bone grafting quantity is larger, and the fusion rate is generally lower. Although the fusion rate of the intervertebral fusion operation and the 360-degree fusion operation is higher, the operation is complex and the technical performance is strong; the operation time is long, and the bleeding is more in the operation; the incidence rate of the nerve injury related complications is high; expensive, and the like. Compared with the transverse process fusion operation and the intervertebral fusion operation, the distance between the small joints is shortest, and the fusion speed of the small joints is higher in theory. Previous studies by the inventor show that the lumbar facet joint fusion can achieve quite satisfactory fusion rate (cancellous bone fusion rate 90.3% and PEEK fusion device fusion rate 88.6%). In order to prevent the fusion cage from shifting, the inventor designs screw holes on two sides of the fusion cage, and can put screws in the fusion cage, and meanwhile, the lumbar vertebra stability is enhanced. And the surgical planning device has the advantages of being capable of being matched with an orthopedic surgery robot to perform preoperative planning, high in implantation precision and capable of achieving minimally invasive channel surgery operation.
Disclosure of Invention
The utility model aims to provide a lumbar facet joint fusion fixator which overcomes the defects of the prior art, is stable in structural installation, is not easy to move in the operation process, is convenient to observe and position under X-ray, and has good bone grafting fusion effect.
The technical scheme adopted for solving the technical problems is as follows:
a lumbar facet joint fusion fixator, comprising a fusion cage body and a fixed guide plate, wherein:
a bone grafting groove and a developing wire mounting groove are formed in the thickness direction of the fusion device main body, the developing wire mounting groove is positioned on one side of the bone grafting groove, a developing wire is arranged in the developing wire mounting groove, and anti-slip protrusions are arranged on two end faces of the fusion device vertebral body in the thickness direction;
the fixing guide plate is arranged on one side of the fusion device main body, extends along the thickness direction of the fusion device main body, forms a T-shaped structure with the fusion device, and is provided with a screw mounting hole;
the T-shaped structural design between the fixed guide plate and the fusion device main body is not only beneficial to convenient installation, but also good in structural stability after installation, and can be matched with the arrangement of the anti-slip protrusions to enhance the friction force with bone surface contact, so that the movement can be effectively prevented, and the developing mark is arranged in the fusion device, so that the observation and the positioning under X-ray can be facilitated.
Furthermore, the cross section area of the bone grafting groove accounts for 3/5-4/5 of the cross section area of the main body of the fusion device, the fusion device and the bone contact surface are provided with the bone grafting groove with a larger space, and the fusion effect is enhanced by filling autologous bone or artificial bone.
Furthermore, the anti-skidding bulges are smooth tooth-shaped, and are distributed in an array at intervals.
Further, two screw mounting holes are arranged, one screw mounting hole is positioned on the main body of the fusion deviceLeft sideThe other is positioned on the right side of the fusion cage main body, so that the installation stability is improved.
Furthermore, the screw mounting hole is internally provided with an anti-withdrawal screw, so that the screw can be effectively prevented from withdrawing through an anti-withdrawal design mechanism, a stable structure is formed, and the safety of clinical application is ensured.
Furthermore, the side face of the fixed guide plate is provided with a tool interface, so that the installation of the articular process fusion device is facilitated.
Experimental researches on the articular process fusion cage show that after the lumbar facet joint fusion cage is used, the fully satisfactory fusion rate (the cancellous bone fusion rate is 90.3% and the PEEK fusion cage fusion rate is 88.6%) can be achieved, and the effect is excellent. The operation is not seriously destroyed to the structural stability behind lumbar vertebra, and the simple facet joint fusion can meet the requirement of lumbar vertebra stability. According to the utility model, screw mounting holes are designed on two sides of the fusion device fixing guide plate, screws can be arranged in the screw mounting holes, the fusion device is prevented from shifting, and the stability of the fusion device is improved. In order to improve the matching degree of the fusion device and the lumbar facet joint of the patient, the utility model provides a customized articular process fusion device product based on an image digital model, and the fusion rate is effectively improved. The utility model has the advantages that the preoperative planning can be performed by using the orthopedic operation robot, the implantation precision is high, and the minimally invasive channel operation can be realized.
The beneficial effects of the utility model are as follows: compared with the prior art, the lumbar facet joint fusion fixator has the following advantages: (1) The T-shaped structure design between the fixed guide plate and the fusion device main body is beneficial to convenient installation, and has good structural stability after installation, and the friction force with bone surface contact is enhanced by matching with the arrangement of the anti-slip protrusions, so that the movement can be effectively prevented; (2) The developing mark is arranged in the fusion device, so that the fusion device can be conveniently observed and positioned under X-ray; (3) The cross section of the bone grafting groove accounts for 3/5-4/5 of the cross section of the main body of the fusion device, the contact surface of the fusion device and the bone has a large space bone grafting groove, and the fusion effect is enhanced by filling autologous bone or artificial bone.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of another angle overall structure of the present utility model;
FIG. 3 is a schematic view of the structure of the anti-back screw of the present utility model;
wherein, 1 fusion ware main part, 2 fixed baffle, 3 bone grafting groove, 4 development silk mounting groove, 5 non-slip raised, 6 screw mounting holes, 7 anti-backing screw, 8 instrument interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
In the embodiment shown in fig. 1 to 3, a lumbar facet joint fusion fixator comprises a fusion cage body 1 and a fixing guide plate 2, wherein:
a bone grafting groove 3 and a developing wire mounting groove 4 are formed in the thickness direction of the fusion device main body 1, the developing wire mounting groove 4 is positioned on one side of the bone grafting groove 3, developing wires are arranged in the developing wire mounting groove 4, and anti-slip protrusions 5 are arranged on two end faces of the thickness direction of the fusion device vertebral body;
the fixing guide plate 2 is arranged on one side of the fusion device main body 1, the fixing guide plate 2 extends along the thickness direction of the fusion device main body 1 and forms a T-shaped structure with the fusion device, and the fixing guide plate 2 is provided with a screw mounting hole 6;
the T-shaped structural design between the fixed guide plate 2 and the fusion device main body 1 is not only beneficial to convenient installation, but also good in structural stability after installation, and can enhance the friction force with bone surface contact by matching with the arrangement of the anti-slip protrusions 5, so that the movement can be effectively prevented, and the developing mark is arranged in the fusion device, so that the observation and the positioning under X-ray can be facilitated.
In this embodiment, the cross-sectional area of the bone grafting groove 3 occupies 3/5-4/5 of the cross-sectional area of the main body 1 of the fusion device, and the fusion device and the bone contact surface have a large-space bone grafting groove 3, so that the fusion effect is enhanced by filling autologous bone or artificial bone.
In this embodiment, the anti-skidding protrusions 5 are smooth teeth, and the anti-skidding protrusions 5 are arranged in an array at intervals.
In this embodiment, two screw mounting holes 6 are provided, one is located on the left side of the cage body 1, and the other is located on the right side of the cage body 1, so as to improve the mounting stability.
In this embodiment, prevent moving back screw 7 is installed to the downthehole anti-moving back screw 7 of installing of screw, can effectively prevent the screw to withdraw from through preventing moving back design mechanism, forms stable structure, guarantees clinical application's security.
Experimental study on the articular process fusion cage in the embodiment shows that after the lumbar facet joint fusion cage is used, quite satisfactory fusion rate (cancellous bone fusion rate 90.3% and PEEK fusion cage fusion rate 88.6%) can be achieved, and the effect is excellent. The operation is not seriously destroyed to the structural stability behind lumbar vertebra, and the simple facet joint fusion can meet the requirement of lumbar vertebra stability. In the embodiment, screw mounting holes are designed on two sides of the fusion device fixing guide plate, screws can be arranged in the screw mounting holes, the fusion device is prevented from shifting, and meanwhile lumbar vertebra stability is enhanced. In order to improve the matching degree of the fusion cage and the lumbar facet joint of the patient, the embodiment provides a customized articular process fusion cage product based on an image digital model, and the fusion rate is effectively improved. The method has the advantages that the orthopedic operation robot can be used for preoperative planning, the implantation precision is high, and the minimally invasive channel operation can be realized.
In this embodiment, the side of the fixed guide plate 2 is provided with a tool interface 8, which is convenient for installing the articular process fusion device.
The foregoing embodiments are merely examples of the present utility model, and the scope of the present utility model includes, but is not limited to, the forms and styles of the foregoing embodiments, and any suitable changes or modifications made by those skilled in the art, which are consistent with the claims of the present utility model, shall fall within the scope of the present utility model.
Claims (6)
1. The utility model provides a lumbar vertebra facet joint fuses fixer which characterized in that: including fusion cage main part and fixed baffle, wherein:
a bone grafting groove and a developing wire mounting groove are formed in the thickness direction of the fusion device main body, the developing wire mounting groove is positioned on one side of the bone grafting groove, a developing wire is arranged in the developing wire mounting groove, and anti-slip protrusions are arranged on two end faces of the fusion device vertebral body in the thickness direction;
the fixing guide plate is arranged on one side of the fusion device main body, extends along the thickness direction of the fusion device main body, forms a T-shaped structure with the fusion device, and is provided with screw mounting holes.
2. A lumbar facet joint fusion holder according to claim 1 wherein: the cross-sectional area of the bone grafting groove accounts for 3/5-4/5 of the cross-sectional area of the main body of the fusion device.
3. A lumbar facet joint fusion holder according to claim 1 wherein: the anti-skidding bulges are smooth teeth, and are distributed in an array at intervals.
4. A lumbar facet joint fusion holder according to claim 1 wherein: two screw mounting holes are arranged, one is located above the fusion cage main body, and the other is located below the fusion cage main body.
5. A lumbar facet joint fusion holder according to claim 1 wherein: and an anti-withdrawal screw is arranged in the screw mounting hole.
6. A lumbar facet joint fusion holder according to claim 1 wherein: the side of the fixed guide plate is provided with a tool interface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223532321.5U CN219089598U (en) | 2022-12-29 | 2022-12-29 | Lumbar facet joint fusion fixer |
| PCT/CN2023/115677 WO2024139327A1 (en) | 2022-12-29 | 2023-08-30 | Lumbar facet joint fusion fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223532321.5U CN219089598U (en) | 2022-12-29 | 2022-12-29 | Lumbar facet joint fusion fixer |
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| Publication Number | Publication Date |
|---|---|
| CN219089598U true CN219089598U (en) | 2023-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223532321.5U Active CN219089598U (en) | 2022-12-29 | 2022-12-29 | Lumbar facet joint fusion fixer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219089598U (en) |
| WO (1) | WO2024139327A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118078503A (en) * | 2024-04-24 | 2024-05-28 | 北京爱康宜诚医疗器材有限公司 | Gasket structure |
| WO2024139327A1 (en) * | 2022-12-29 | 2024-07-04 | 中国医科大学附属第一医院 | Lumbar facet joint fusion fixator |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204468350U (en) * | 2015-02-11 | 2015-07-15 | 广州中医药大学 | Invasive lumbar fusion device |
| CN204636625U (en) * | 2015-05-20 | 2015-09-16 | 上海长征医院 | Self-stabilising Far lateral approach Invasive lumbar fusion device |
| CN104814816A (en) * | 2015-05-20 | 2015-08-05 | 上海长征医院 | Self-stabilization type extreme lateral approach intervertebral fusion cage |
| CN209611434U (en) * | 2019-01-08 | 2019-11-12 | 大博医疗科技股份有限公司 | A kind of TLIF lumbar fusion cages |
| KR20220148595A (en) * | 2021-04-29 | 2022-11-07 | (주)엘앤케이바이오메드 | Lumbar Interbody Fusion Cage |
| CN217793482U (en) * | 2022-03-09 | 2022-11-15 | 重庆富沃思医疗器械有限公司 | Self-locking type interbody fusion cage |
| CN219089598U (en) * | 2022-12-29 | 2023-05-30 | 中国医科大学附属第一医院 | Lumbar facet joint fusion fixer |
-
2022
- 2022-12-29 CN CN202223532321.5U patent/CN219089598U/en active Active
-
2023
- 2023-08-30 WO PCT/CN2023/115677 patent/WO2024139327A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024139327A1 (en) * | 2022-12-29 | 2024-07-04 | 中国医科大学附属第一医院 | Lumbar facet joint fusion fixator |
| CN118078503A (en) * | 2024-04-24 | 2024-05-28 | 北京爱康宜诚医疗器材有限公司 | Gasket structure |
| CN118078503B (en) * | 2024-04-24 | 2024-07-26 | 北京爱康宜诚医疗器材有限公司 | Gasket structure |
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| Publication number | Publication date |
|---|---|
| WO2024139327A1 (en) | 2024-07-04 |
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Effective date of registration: 20240306 Address after: 264200 No.26 Xiangjiang street, Huancui District, Weihai City, Shandong Province Patentee after: SHANDONG WEIGAO ORTHOPEDIC DEVICE Co.,Ltd. Country or region after: China Address before: 110000 No. 155 North Nanjing street, Heping District, Liaoning, Shenyang Patentee before: THE FIRST HOSPITAL OF CHINA MEDICIAL University Country or region before: China |
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