CN213489564U - Atlantoaxial anterior road joint plate-shaped fusion device - Google Patents
Atlantoaxial anterior road joint plate-shaped fusion device Download PDFInfo
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- CN213489564U CN213489564U CN202022517103.9U CN202022517103U CN213489564U CN 213489564 U CN213489564 U CN 213489564U CN 202022517103 U CN202022517103 U CN 202022517103U CN 213489564 U CN213489564 U CN 213489564U
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- atlantoaxial
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Abstract
Atlantoaxial anterior through articular plate fusion device includes: 1 atlantoaxial intervertebral fusion device, 1 dentata vertebral body fixer, 4 fixing screws and 2 screw lock catches; the atlantoaxial intervertebral fusion cage is wrapped by titanium alloy metal at the periphery for enhancing the fusion stability, and porous metal at the middle part for long-term bone ingrowth; the dentata centrum fixer is a steel plate connected with the atlantoaxial intervertebral fusion device, and the inner side of the steel plate is attached to the dentata centrum; the fixing screw is used for fixing the atlas lateral mass and the axis vertebral body through the atlantoaxial intervertebral fusion device and the axis vertebral body fixer; the screw lock catch is used for reinforcing the fixing screw. The integration of bone fusion and internal fixation is realized by one device. Thereby reducing the amount of bleeding and the injury to muscle tissues during the operation, shortening the operation time and safely and effectively fixing and fusing the atlantoaxial complex.
Description
Technical Field
The utility model relates to a technical field of vertebra fixing device specifically is a device for fusing internal fixation atlantoaxial complex body.
Background
Surgical treatment of upper cervical spine injuries has been a high risk area of spinal surgery. For example, unstable atlantoaxial and dislocation of atlantoaxial often cause severe spinal cord injury, and serious patients may endanger the life of patients. The atlantoaxial complex is fused in an operation mode, so that the atlantoaxial is in a stable structure, and the key for solving the problem is to relieve nerve compression. The traditional anterior joint fusion fixing mode at present has the defects that the screw is not easy to implant, and the implantation direction can be determined only by multiple times of perspective; the bone grafting amount is not easy to control, too much can easily wear the esophagus, and too little can easily cause unstable fusion or even no fusion. Oral atlantoaxial surgery is very likely to cause infection of the operative region and poor post-healing results. Therefore, it is urgent and necessary to develop a device for integrating fusion and internal fixation, which can be used for anterior transarticular fusion and fixation of the atlantoaxial complex.
SUMMERY OF THE UTILITY MODEL
The utility model provides an atlantoaxial anterior pathway is through joint plate-shaped fusion device, its purpose is difficult to confirm for solving the screw implantation direction, implants the difficult problem that exists in the aspect of the control of bone quantity.
An atlantoaxial anterior trans-articular lamina fusion device comprising: the atlantoaxial anterior passage is through the fusion device of articular plate form, has the atlantoaxial intervertebral fusion ware of screw through-hole, its characterized in that: the surface of the atlantoaxial intervertebral fusion device is provided with two porous atlantoaxial porous metal fusion devices which are fixed on two sides of an axis vertebral body fixer and are in symmetrical structures; two atlas hollow screw channels and two axis hollow screw channels are arranged on each atlas dentata porous metal fusion device, and fixing screws are arranged in the atlas hollow screw channels and the axis hollow screw channels; a screw lock catch is arranged between the two atlas hollow screw channels.
The entire outer surface of the atlantoaxial intervertebral fusion device is wrapped with titanium alloy metal.
The atlantoaxial porous metal fusion device and the axis vertebral body fixator are fixed through a steel plate, and 2 screw channels are arranged on the steel plate and used for fixing screws on the lateral mass of the atlantoaxial.
The beneficial effects of the utility model are that solved the screw and implanted the direction and be difficult to confirm, the problem that exists in the aspect of the difficult control of bone grafting volume. Furthermore, the utility model discloses atlantoaxial way is through the fusion device of joint plate-like proposition in the atlantoaxial way through the joint fusion art, realizes bone fusion and internal fixation integration through one piece of device to operation bleeding volume and to muscle tissue damage have shortened the operation time weak point, can safe effectual fixed fusion atlantoaxial complex body again.
Drawings
FIG. 1 is a front view of the atlantoaxial anterior transfixion device of the present invention;
FIG. 2 is a diagram of the embodiment of the atlantoaxial anterior transfixion device of FIG. 1 implanted through the articulating plate;
FIG. 3 is a side view of the atlantoaxial complex implanted in the atlantoaxial anterior approach through the articular plate-shaped fusion device of the present invention;
FIG. 4 is a diagram of the state of implantation of the atlantoaxial complex of FIG. 3;
in the figure, 1, an atlas hollow screw channel 2, an axis hollow screw channel 3, an atlas porous metal fusion device 4, an axis vertebral body fixer 5, a screw lock catch 6, an atlas fixing screw 7 and an axis fixing screw.
Detailed Description
The utility model provides an individuation, it is easy and simple to handle, can fuse fixed atlantoaxial complex body, make atlantoaxial complex body obtain stable structure and design.
The present invention will be further explained with reference to the drawings and examples.
In the attached drawings 1-4, the atlantoaxial anterior passage is through the fusion device of articular plate form and includes 1 atlantoaxial intervertebral fusion ware, 1 dentata centrum fixer, 2 atlas fixing screws, 2 screw lock catches, and 2 dentata fixing screws. The atlantoaxial intervertebral fusion device is an atlantoaxial porous metal fusion device 3 with porous surfaces, the outer surface is coated with titanium alloy metal, and the middle part is porous metal for long-term cancellous bone ingrowth, so that a stable bony structure is obtained. The dentata centrum fixer 4 is connected with the atlantoaxial porous metal fusion device 3 through a steel plate, and 2 dentata hollow screw channels 2 are arranged on the steel plate or the atlantoaxial porous metal fusion device 3 and are used for fixing with the dentata. The atlantoaxial porous metal fusion device 3 is provided with 2 atlantoaxial hollow screw channels 1 for screws to penetrate and be fixed on the atlantoaxial lateral mass so as to fix the atlantoaxial porous metal fusion device 3 with the atlantoaxial. The atlas screw is fixed by the screw lock catch 5, so that the occurrence of nail withdrawal is prevented.
The 2 atlas hollow screw channels 1 and the 2 axis hollow screw channels 2 can obtain good stability.
It should be understood that the above examples are only for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications are intended to be included within the scope of the present invention.
Claims (3)
1. The atlantoaxial anterior passage is through the fusion device of articular plate form, has the atlantoaxial intervertebral fusion ware of screw through-hole, its characterized in that: the surface of the atlantoaxial intervertebral fusion device is provided with a plurality of porous atlantoaxial porous metal fusion devices (3), and two atlantoaxial porous metal fusion devices (3) are fixed on two sides of an axis vertebral body fixer (4) and are in symmetrical structures; two atlas hollow screw channels (1) and two axis hollow screw channels (2) are arranged on each atlas and axis porous metal fusion device (3), and fixing screws are arranged in the atlas hollow screw channels (1) and the axis hollow screw channels (2); a screw lock catch (5) is arranged between the two atlas hollow screw channels (1).
2. The atlantoaxial anterior translocated lamina fusion device of claim 1, wherein: the entire outer surface of the atlantoaxial intervertebral fusion device is wrapped with titanium alloy metal.
3. The atlantoaxial anterior translocated lamina fusion device of claim 1, wherein: the atlantoaxial porous metal fusion device (3) and the axis vertebral body fixator (4) are fixed through a steel plate, and 2 screw channels are arranged on the steel plate and used for fixing the atlantoaxial side block through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022517103.9U CN213489564U (en) | 2020-11-04 | 2020-11-04 | Atlantoaxial anterior road joint plate-shaped fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022517103.9U CN213489564U (en) | 2020-11-04 | 2020-11-04 | Atlantoaxial anterior road joint plate-shaped fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213489564U true CN213489564U (en) | 2021-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022517103.9U Active CN213489564U (en) | 2020-11-04 | 2020-11-04 | Atlantoaxial anterior road joint plate-shaped fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213489564U (en) |
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2020
- 2020-11-04 CN CN202022517103.9U patent/CN213489564U/en active Active
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