CN220424023U - Angle-adjustable atlantoaxial fusion device - Google Patents
Angle-adjustable atlantoaxial fusion device Download PDFInfo
- Publication number
- CN220424023U CN220424023U CN202321507512.8U CN202321507512U CN220424023U CN 220424023 U CN220424023 U CN 220424023U CN 202321507512 U CN202321507512 U CN 202321507512U CN 220424023 U CN220424023 U CN 220424023U
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- CN
- China
- Prior art keywords
- supporting seat
- atlantoaxial
- angle
- movable block
- adjustable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 208000002998 atlanto-axial fusion Diseases 0.000 title claims abstract description 13
- 230000008093 supporting effect Effects 0.000 claims abstract description 48
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 abstract description 8
- 239000007943 implant Substances 0.000 abstract description 4
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 210000002632 atlanto-axial joint Anatomy 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 208000019505 Deglutition disease Diseases 0.000 description 1
- 206010053648 Vascular occlusion Diseases 0.000 description 1
- 230000036770 blood supply Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000000133 brain stem Anatomy 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 208000021331 vascular occlusion disease Diseases 0.000 description 1
Abstract
The utility model discloses an atlantoaxial fusion device with an adjustable angle, which relates to the field of orthopedic implants and comprises a fixed block, wherein a group of supporting seats are rotatably arranged at the top and the bottom of the fixed block, a screw rod is arranged on one side of the fixed block in a penetrating way, one end of the screw rod is connected with a movable block, and an inclined plane is formed in the inner wall of the supporting seat. According to the utility model, the integral device is inserted between atlantoaxial vertebrae, and then the screw is rotated, so that the screw pushes the movable block to move forwards, and because the movable block is positioned in the middle of the supporting seat, when the movable block moves to the position of the inclined plane, the supporting seat is pushed to be outwards opened, so that the supporting seat is in a front high and rear low state, the craniocervical convex angle can be effectively corrected, after the supporting is finished, the handle on the screw is connected with the titanium rod through the nail cap, the stability of the integral device in a patient can be improved, and the device cannot deviate due to the movement.
Description
Technical Field
The utility model relates to the field of orthopedic implants, in particular to an angle-adjustable atlantoaxial fusion device.
Background
The occipital depression combined atlantoaxial dislocation is a complex craniocerebral interface deformity, and the atlantoaxial of a patient is slipped, so that dentate process of the atlantoaxial is shifted to the head side and the back side, nerve structures such as brainstem are pressed, and the patient is mostly combined with atlantooccipital fusion and atlantoaxial height loss, so that the atlantoaxial lateral mass height can be reset by implanting a fusion device between the atlantoaxial.
However, the existing fusion device for supplementing the height of atlantoaxial is mainly of a cuboid structure, the cuboid structure is ineffective for correcting the craniocerebral lobe of a patient, even if a learner puts a short fusion device at the front part of an articular, the correction of the craniocerebral lobe is still poor, but the operation causes the rear part of the articular to be empty, the joint surfaces are not parallel and become in a forward opening state, so that the fusion device is easy to shift forward due to the shearing force of the articular during the forced operation and under long-time load, the pharyngeal wall, blood vessels and nerves of the patient are pressed, dysphagia, glossoparalysis, language inadequacy and blood supply are caused, and serious patients can cause vascular occlusion of the patient, and then life danger is caused.
Disclosure of Invention
Based on the above, the utility model aims to provide an atlantoaxial fusion device with adjustable angle, so as to solve the technical problems that the existing atlantoaxial fusion device has poor correcting effect on craniocerebral posterior lobe and is easy to shift.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an atlantoaxial fusion device capable of adjusting angle, includes the fixed block, the top and the bottom of fixed block rotate and set up a set of supporting seat, one side of fixed block runs through and is provided with the screw rod, the one end of screw rod is connected with the movable block, the inclined plane has been seted up to the inner wall of supporting seat, the top of supporting seat is provided with the rubber pad, one side of supporting seat is provided with the fixed plate, be provided with the torsional spring fixed axle between fixed plate and the supporting seat, the one end of screw rod is provided with the handle, and the handle can be connected through the nut with the titanium stick.
The utility model is further arranged that clamping blocks are arranged at the top and the bottom of the movable block, and clamping grooves matched with the clamping blocks are formed in the inner wall of the supporting seat.
The utility model is further arranged that the top of the rubber pad is provided with the groove, and the shape and the size of the groove are matched with those of the fixing plate.
The utility model is further arranged that a rotating shaft is arranged at the joint of the fixed block and the supporting seat.
The utility model further provides that the surface of the clamping block is provided with the pulley, and the pulley can move along the clamping groove.
In summary, the utility model has the following advantages: according to the utility model, the integral device is inserted between the atlantoaxial vertebrae, and then the screw rod is rotated, so that the screw rod pushes the movable block to move forwards, and because the movable block is positioned in the middle of the supporting seat, when the movable block moves to the position of the inclined plane, the supporting seat is pushed to be opened upwards and downwards, so that the supporting seat is in a front-high-back low state, the convex angle of the cranium can be effectively corrected, after the supporting is finished, an operator implants atlantoaxial and axial screws and connects the atlantoaxial screws with rods, the atlantoaxial fixing is achieved, then, the limiting seat is connected with the titanium rods through the nail caps, the integral fixing of the atlantoaxial vertebrae and the fusion device is achieved, the stability of the integral device in a patient body can be improved, the risk of displacement of the fusion device in all directions is avoided due to movement, meanwhile, in order to further improve the adaptability of the fusion device to the atlantoaxial vertebrae, the supporting effect of the supporting seat on the atlantoaxial vertebrae of the patient is further ensured, the supporting seat is a detachable structure, the fixing plate is matched with the fixing plate, the fixing plate is removed, and the fixing of the rubber pad is further practical is detached.
Drawings
FIG. 1 is a front cross-sectional view of the present utility model;
FIG. 2 is a side cross-sectional view of the present utility model;
FIG. 3 is a top view of the present utility model;
FIG. 4 is a schematic view of the fixing structure of the titanium rod according to the present utility model;
FIG. 5 is a schematic view of the present utility model mounted on the interior of the atlantoaxial.
In the figure: 1. a fixed block; 2. a support base; 3. a screw; 4. a movable block; 5. an inclined plane; 6. a rotating shaft; 7. a rubber pad; 8. a fixing plate; 9. a torsion spring fixing shaft; 10. a clamping block; 11. a pulley; 12. a clamping groove; 13. a handle; 14. and a limiting seat.
Detailed Description
The technical solutions in 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. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.
An atlantoaxial fusion device with adjustable angle is shown in fig. 1-3, and comprises a fixed block 1, wherein a group of supporting seats 2 are rotatably arranged at the top and the bottom of the fixed block 1, a rotating shaft 6 is arranged at the joint of the fixed block 1 and the supporting seats 2, the device is integrally inserted into an atlantoaxial joint, and adjacent atlantoaxial joints are fixed by taking a titanium rod as a bracket.
One side of fixed block 1 runs through and is provided with screw rod 3, the one end of screw rod 3 is connected with movable block 4, inclined plane 5 has been seted up to the inner wall of supporting seat 2, the top of supporting seat 2 is provided with rubber pad 7, one side of supporting seat 2 is provided with fixed plate 8, be provided with torsional spring fixed axle 9 between fixed plate 8 and the supporting seat 2, the one end of screw rod 3 is provided with handle 13, rotatory screw rod 3 makes screw rod 3 promote movable block 4 forward motion, because movable block 4 is located the middle of supporting seat 2, when movable block 4 moves to the position of inclined plane 5, promote supporting seat 2 outwards to open, make supporting seat 2 be the high state in front and back, can effectually correct craniocervical lobe, simultaneously in order further to promote the adaptability of device to the atlas pivot, rubber pad 7 on supporting seat 2 surface can carry out soft support to the atlas of patient, the supporting effect of supporting seat 2 to the atlas is further guaranteed when patient's secondary injury, rubber pad 7 is the detachable structure, fix rubber pad 7 is fixed to fixed by torsional spring 9 cooperation fixed plate 8, through rotating fixed plate 8, the whole practicality of the device of fixing 7 has been removed, the whole rubber pad 7 has been further been removed.
The operator implants the atlas and the axial screw and links the atlas and the axial screw with the stick, reaches the atlas and the axial fixed, then, carries out the block with spacing seat 14 and titanium stick, and is fixed with spacing seat 14 and titanium stick through the nut, and overall structure obtains better fixed effect this moment, can promote the stability of overall device in the patient, can not lead to the device to take place the skew because of patient's daily motion.
The top and the bottom of movable block 4 all are provided with fixture block 10, fixture block 10 assorted draw-in groove 12 has been seted up to the inner wall of supporting seat 2, when rotatory screw rod 3 promotes the forward motion of movable block 4, fixture block 10 moves along the draw-in groove 12 forward, fixture block 10 and draw-in groove 12 play the spacing guide effect to the motion of movable block 4, the surface of fixture block 10 is provided with pulley 11, when fixture block 10 moves forward along the draw-in groove 12, pulley 11 can promote the smoothness nature of fixture block 10 motion, make supporting seat 2 open the more smooth and easy of rhythm.
The recess has been seted up at the top of rubber pad 7, and recess shape size and fixed plate 8 shape size each other match, and when fixed plate 8 was fixed rubber pad 7, because the existence of recess, fixed plate 8 was fixed back to rubber pad 7, was parallel state with the top of rubber pad 7, and overall structure is smoother.
Working principle: the integrated device is inserted between atlantoaxial vertebrae, then the screw rod 3 is rotated, the screw rod 3 pushes the movable block 4 to move forwards, because the movable block 4 is located in the middle of the supporting seat 2, when the movable block 4 moves to the position of the inclined plane 5, the supporting seat 2 is pushed to open outwards, the supporting seat 2 is in a front high and rear low state, the craniocervical convex angle can be effectively corrected, after the supporting is finished, the handle 13 on the screw rod 3 is connected with the titanium rod through the nail cap, the stability of the integrated device in a patient body can be improved, the device cannot deviate due to movement, meanwhile, in order to further improve the adaptability of the device to the atlantoaxial vertebrae, the rubber pad 7 on the surface of the supporting seat 2 can flexibly support the atlantoaxial vertebrae of the patient, the supporting effect of the supporting seat 2 on the atlantoaxial vertebrae is further ensured while secondary injury to the patient is reduced, the rubber pad 7 is in a detachable structure, the rubber pad 7 is fixed by the torsion spring fixing shaft 9 in cooperation with the fixing plate 8, the fixing of the rubber pad 7 is relieved by rotating the fixing plate 8, the rubber pad 7 is detached, and the practicality of the integrated device is further improved.
Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.
Claims (5)
1. An atlantoaxial fusion device with adjustable angle, which comprises a fixed block (1), and is characterized in that: the top and the bottom of fixed block (1) rotate and set up a set of supporting seat (2), one side of fixed block (1) runs through and is provided with screw rod (3), one end of screw rod (3) is connected with movable block (4), inclined plane (5) have been seted up to the inner wall of supporting seat (2), the top of supporting seat (2) is provided with rubber pad (7), one side of supporting seat (2) is provided with fixed plate (8), be provided with torsional spring fixed axle (9) between fixed plate (8) and supporting seat (2), one end of screw rod (3) is provided with handle (13), one end of handle (13) is provided with spacing seat (14), and spacing seat (14) can be connected through the nut with the titanium stick.
2. An angle-adjustable atlantoaxial fusion machine according to claim 1, wherein: clamping blocks (10) are arranged at the top and the bottom of the movable block (4), and clamping grooves (12) matched with the clamping blocks (10) are formed in the inner wall of the supporting seat (2).
3. An angle-adjustable atlantoaxial fusion machine according to claim 1, wherein: the top of rubber pad (7) is seted up flutedly, and recess shape size and fixed plate (8) shape size all mutually match.
4. An angle-adjustable atlantoaxial fusion machine according to claim 1, wherein: the connecting part of the fixed block (1) and the supporting seat (2) is provided with a rotating shaft (6).
5. An angle-adjustable atlantoaxial fusion machine according to claim 2, characterized in that: the surface of the clamping block (10) is provided with a pulley (11), and the pulley (11) can move along the clamping groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321507512.8U CN220424023U (en) | 2023-06-14 | 2023-06-14 | Angle-adjustable atlantoaxial fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321507512.8U CN220424023U (en) | 2023-06-14 | 2023-06-14 | Angle-adjustable atlantoaxial fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220424023U true CN220424023U (en) | 2024-02-02 |
Family
ID=89694925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321507512.8U Active CN220424023U (en) | 2023-06-14 | 2023-06-14 | Angle-adjustable atlantoaxial fusion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220424023U (en) |
-
2023
- 2023-06-14 CN CN202321507512.8U patent/CN220424023U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |