CN215821124U - Combined cervical vertebra anatomical titanium mesh vertebral plate - Google Patents
Combined cervical vertebra anatomical titanium mesh vertebral plate Download PDFInfo
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- CN215821124U CN215821124U CN202120670675.2U CN202120670675U CN215821124U CN 215821124 U CN215821124 U CN 215821124U CN 202120670675 U CN202120670675 U CN 202120670675U CN 215821124 U CN215821124 U CN 215821124U
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- titanium mesh
- hollow cylinder
- plate
- titanium
- terminal
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- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 230000008093 supporting effect Effects 0.000 claims abstract description 16
- 229910052719 titanium Inorganic materials 0.000 claims description 14
- 239000010936 titanium Substances 0.000 claims description 14
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 210000001951 dura mater Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 208000037959 spinal tumor Diseases 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model provides a combined cervical vertebra anatomical titanium mesh vertebral plate, which comprises a first terminal component and a second terminal component which are connected through a titanium mesh; the first terminal assembly comprises a first hollow cylinder, and a symmetrical horizontal supporting plate extends out of one end face, far away from the titanium mesh, of the first hollow cylinder in the direction horizontally far away from the axial lead of the first hollow cylinder; the first terminal assembly further comprises an extended first vertical fixing plate located outside the first hollow cylinder; the other end of the first terminal assembly is connected with one end of the titanium mesh through the connecting assembly; the second terminal assembly is connected with the other end of the titanium mesh through a connecting component; the second terminal assembly comprises a second hollow cylinder, and a second vertical fixing plate extends out of one end face, far away from the titanium mesh, of the second hollow cylinder. The titanium mesh vertebral plate provided by the utility model is fixed on the lower end plate of the adjacent vertebral plate through the horizontal support plate, so that the titanium mesh plays an axial fixing support role between the adjacent vertebral plates and better accords with the biomechanical property.
Description
Technical Field
The utility model relates to the technical field of cervical vertebra implanted medical instruments, in particular to a combined cervical vertebra anatomical titanium mesh vertebral plate.
Background
In present spinal tumour operation treatment, often need to excise the vertebral plate, cause the vertebral plate defect after the excision, need carry out the vertebral plate to the vertebral plate of excision and rebuild, resume spinal vertebral plate's supporting role, avoid the oppression of spinal canal rear soft tissue to the spinal cord simultaneously. In the prior art, the vertebral plate reconstruction is performed by adopting a titanium net and a titanium alloy plate to match with a screw, but in the prior art, the titanium net is generally matched with a gasket on the outer side, the gasket is fixed on the outer side of the excised vertebral plate adjacent to the vertebral plate, and in terms of biomechanical performance, the fixing mode is only used for fixing the side surface of the vertebral plate, the supporting effect on the adjacent vertebral plate is only on one side of the titanium net, and the situations of titanium net toppling, sinking and the like are easy to occur after the operation.
At present, partial technologies and patents innovate the titanium mesh, enhance the fusion of the titanium mesh and a vertebral plate, reconstruct the curvature of the cervical vertebra, enhance the protection of a dura mater at the back of the vertebral plate and the like, but the fixing modes are all fixed at the outer side of the vertebral plate, and the problem of poor supporting effect of one side of the titanium mesh is not solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the defects of the prior art and provides a combined cervical vertebra anatomical titanium mesh vertebral plate which can be axially fixed between adjacent vertebral plates to play a supporting role.
The utility model adopts the following technical scheme for solving the technical problems:
the utility model provides a combined cervical vertebra anatomical titanium mesh vertebral plate, which comprises a first terminal component and a second terminal component which are connected through a hollow cylindrical titanium mesh;
the first terminal assembly comprises a first hollow cylinder, and a symmetrical horizontal supporting plate extends out of one end face of the first hollow cylinder far away from the titanium mesh in the direction horizontally far away from the axial lead of the first hollow cylinder; the titanium mesh vertebral plate is used for supporting and fixing the titanium mesh vertebral plate and the adjacent vertebral body lower end plate;
the first terminal assembly further comprises a first vertical fixing plate which is positioned on the outer side of the first hollow cylinder and extends in the direction which is vertically far away from the first hollow cylinder, and the first vertical fixing plate is used for being fixed on the outer side face of an adjacent vertebral body;
the part, except the horizontal supporting plate and the vertical fixing plate, of one end face, far away from the titanium mesh, of the first hollow cylinder is an arched face matched with the lower end plate face of the adjacent vertebral body;
the other end of the first hollow cylinder is connected with one end of the titanium net through a connecting component;
the second terminal assembly comprises a second hollow cylinder which is connected with the other end of the titanium mesh through a connecting component; a second vertical fixing plate extends from one end face, far away from the titanium mesh, of the second hollow cylinder and is used for being fixed on the outer side face of an adjacent vertebral body; the second vertical fixing plate is coaxially arranged with the first vertical fixing plate.
Further, the through holes in the titanium mesh are arranged into first circular through holes.
Further, the connecting part comprises a second round through hole and a fixing nail which are respectively arranged on the first hollow cylinder and the second hollow cylinder; matched internal threads are arranged in the first circular through hole and the second circular through hole, and threads matched with the internal threads are arranged on the fixing nail; the first hollow cylinder and the second hollow cylinder have a diameter smaller than that of the titanium mesh, and are insertable into the hollow portion of the titanium mesh, respectively.
Further, the width of the second vertical fixing plate is larger than that of the titanium net.
Further, the diameter of the titanium mesh is 10-17 mm; the diameters of the first hollow cylinder and the second hollow cylinder are 8-15 mm.
Further, all be provided with at least one screw hole on horizontal support plate, the vertical fixed plate of first and the vertical fixed plate of second.
Furthermore, three screw holes are formed in the first vertical fixing plate and the second vertical fixing plate, and the three screw holes are respectively formed in three vertexes of a regular triangle.
Further, the first terminal member and the second terminal member are integrally formed
Further, the first terminal component, the titanium mesh and the second terminal component are all made of titanium alloy.
Further, the horizontal support plate is on the same horizontal plane with the highest point of the arched surface.
Further, the cross-section of the horizontal support plate is configured as an arch that mates with the inferior endplate of the adjacent vertebral body.
Furthermore, one end face of the second hollow cylinder, which is far away from the titanium net, is an inclined plane.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:
according to the combined type cervical vertebra anatomical titanium mesh vertebral plate, the horizontal supporting plate in the horizontal direction is arranged at the first end of the titanium mesh vertebral plate, so that the titanium mesh vertebral plate is fixed on the lower end plate of the vertebral plate through the first terminal component, the titanium mesh vertebral plate plays an axial fixing and supporting role between the adjacent vertebral plates, and the requirements of biomechanical performance are met better; the horizontal supporting plate is matched with the vertical fixing plate to carry out double connection and fixation, so that the titanium mesh can be effectively prevented from deviating and sinking after the vertebral plate reconstruction is carried out on the titanium mesh, and better effects on the reconstruction support of the vertebral plate, the recovery of the cervical curvature and the protection of a dura mater are achieved; the required length of the titanium mesh can be obtained by cutting the titanium mesh, and the titanium mesh can be connected with the first terminal component and the second terminal component, so that the requirements of different titanium mesh vertebral plate lengths are met.
Drawings
FIG. 1 is a schematic structural view of a combined anatomical titanium mesh vertebral plate for cervical vertebrae according to an embodiment of the present invention;
FIG. 2 is a schematic view of the assembled first, titanium mesh and second terminal members of a modular cervical anatomic titanium mesh lamina according to one embodiment of the present invention;
FIG. 3 is a top view of a first terminal member of a modular cervical anatomic titanium mesh lamina provided in accordance with one embodiment of the present invention;
FIG. 4 is a left side view of a second terminal member of a modular cervical anatomic titanium mesh lamina provided in accordance with one embodiment of the present invention;
wherein the reference numerals are: 1-titanium mesh, 2-first terminal member, 3-second terminal member, 11-first circular through hole, 12-fixing nail, 21-first hollow cylinder, 22-horizontal support plate, 23-first vertical fixing plate, 31-second hollow cylinder, 32-second vertical fixing plate.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings for better understanding of the present invention, but not to limit the scope of the present invention.
As shown in fig. 1, the present invention provides a combined cervical anatomical titanium mesh vertebral plate, comprising a first terminal member 2 and a second terminal member 3 connected by a hollow cylindrical titanium mesh 1; the first terminal member 2, the titanium mesh 1 and the second terminal member 3 are all made of titanium alloy.
As shown in fig. 3, the first terminal assembly 2 comprises a first hollow cylinder 21, and a symmetrical horizontal support plate 22 extending from one end surface of the first hollow cylinder 21 far away from the titanium mesh 1 in a direction horizontally far away from the axis of the first hollow cylinder 21; the titanium mesh vertebral plate is used for supporting and fixing the titanium mesh vertebral plate and the adjacent vertebral body lower end plate;
the first terminal assembly 2 further comprises a first vertical fixing plate 23 located outside the first hollow cylinder 21 and extending in a direction vertically away from the first hollow cylinder 21 for fixing to the lateral surface of an adjacent vertebral body;
the part of one end surface of the first hollow cylinder 21, which is far away from the titanium mesh 1, except the horizontal supporting plate 22 and the first vertical fixing plate 23 is arranged to be an arched surface matched with the lower end plate surface of the adjacent vertebral body; the horizontal support plate 22 is at the same level as the highest point of the arcuate surface. The arched surface can be attached to the lower end plate of the vertebral plate of the adjacent vertebral plate, so that the contact area between the arched surface and the adjacent vertebral body is increased, and the distribution of stress during the support of the adjacent vertebral body is facilitated.
The horizontal support plate 22 can fix the first terminal assembly 1 on the lower terminal plate surface of the vertebral plate of the adjacent vertebral plate, so that the titanium mesh 1 can axially support and fix the adjacent vertebral body, and the axial support effect similar to the vertebral body is reconstructed. Compared with the prior art that the artificial vertebral plate is fixed on the side wall or the spinous process of the adjacent vertebral plate, the titanium mesh vertebral plate provided by the utility model has the supporting function more similar to the vertebral body of a human body, and can avoid the problems of sedimentation, deviation and the like after the titanium mesh is implanted.
In a preferred embodiment of the present invention, the horizontal support plate 22 is also configured as an arch shape matching with the inferior endplate of the vertebral plate of the adjacent vertebral body, and the cross section of the horizontal support plate is arc-shaped and matches with the arch-shaped surface of the other part of the first hollow cylinder 21, so as to effectively support the inferior endplate of the vertebral plate of the adjacent vertebral body.
The other end of the first hollow cylinder 21 far away from the horizontal supporting plate 22 is connected with one end of the titanium net 1 through a connecting component.
The second terminal member 3 comprises a second hollow cylinder 31, and the second hollow cylinder 31 is connected with the other end of the titanium mesh 1 through a connecting member; a second vertical fixing plate 23 extends from one end face of the second hollow cylinder 31 far away from the titanium mesh 1 and is used for fixing the second hollow cylinder on the outer side face of the adjacent vertebral body; the second vertical fixing plate 23 is coaxially disposed with the first vertical fixing plate 23.
In a preferred embodiment of the present invention, the first terminal member 2 and the second terminal member 3 are both integrally formed.
As shown in fig. 2, the through holes of the titanium mesh 1 are provided as first circular through holes 11. The connecting part comprises a second round through hole and a fixing nail 12 which are respectively arranged on the side walls of the first hollow cylinder 21 and the second hollow cylinder 31; the first circular through hole 11 and the second circular through hole are internally provided with matched internal threads, and the fixing nail 12 is provided with threads matched with the internal threads, namely a screw; the first hollow cylinder 21 and the second hollow cylinder 31 have a diameter smaller than that of the titanium mesh 1, are inserted into the hollow portion of the titanium mesh 1, and are fixed in the first circular through hole 11 and the second circular through hole by cooperating with the fixing nail 12, so that the titanium mesh 1 is connected and fixed with the first terminal assembly 2 and the second terminal assembly 3.
The assembly mode of the titanium mesh vertebral plate provided by the utility model is as follows: the first terminal assembly 2 and the second terminal assembly 3 are respectively inserted into two ends of the titanium mesh 1, then the second circular through holes in the side walls of the first hollow cylinder 21 and the second hollow cylinder 31 are aligned and matched with the first circular through hole 11 in the titanium mesh 1, the fixing nails 12 are used for screwing into the first circular through hole 1 and the second circular through hole and fixing, so that the first terminal assembly 2 and the second terminal assembly 3 are connected and fixed with the titanium mesh 1, and the assembly is completed.
The length of the titanium net 1 can be adjusted to a required length through shearing, the first circular through holes 11 are uniformly distributed on the titanium net 1 and can be matched and fixed with the second circular through holes in the side walls of the first hollow cylinder 21 and the second hollow cylinder 31, the required length of the titanium net 1 can be selected to shear the titanium net 1 in an operation, and then the first terminal component 2 and the second terminal component 3 are assembled to obtain a titanium net vertebral plate with the required length.
It is understood that any fixation or combination of fixation means known in the art, which is capable of connecting and fixing the first terminal member 2 and the second terminal member 3 to the titanium mesh 1, is included in the scope of the present invention.
The diameter of the titanium mesh 1 is 10-17 mm; the diameters of the first hollow cylinder 21 and the second hollow cylinder are 8-15 mm.
In a preferred embodiment of the utility model, the diameter of the titanium mesh 1 is 14mm, and the diameter of the first hollow cylinder 21 and the second hollow cylinder 31 is 12 mm.
In a preferred embodiment of the utility model, a second vertical fixation plate 32 is fixed to the outside of the adjacent vertebral body in a manner similar to an anterior cervical plate, the second vertical fixation plate 32 having a width greater than the diameter of the titanium mesh 1.
At least one screw hole is arranged on each of the horizontal support plate 22, the first vertical fixing plate 23 and the second vertical fixing plate cylinder 32. Three screw holes are arranged on the first vertical fixing plate 23 and the second vertical fixing plate 32, and the three screw holes are respectively arranged on three vertexes of a regular triangle. The first vertical fixing plate 23 and the second vertical fixing plate 32 are respectively arranged on the end faces, far away from the titanium mesh 1, of the first hollow cylinder 21 and the second hollow cylinder 31, the cross sections of the first vertical fixing plate 23 and the second vertical fixing plate 32 are both arc-shaped, and therefore three screw holes in the first vertical fixing plate 23 and the second vertical fixing plate 32 are not located on the same plane.
As shown in fig. 4, an end surface of the second hollow cylinder 31 of the second terminal member 3, which is far away from the titanium mesh 1, is an inclined surface, and an included angle between the inclined surface and a horizontal plane is 5-30 °. The inclined plane can make the lower end surface of the second terminal component 3 more fit with the inclined plane of the adjacent vertebral body below, and the fixing effect is better when the second terminal component is matched with other components such as gaskets and the like to be implanted and fixed.
The combined cervical vertebra anatomical titanium mesh vertebral plate provided by the utility model can be matched with any gasket, screw or other fixing instrument in the prior art to use in the using process so as to meet different vertebral body reconstruction requirements, such as the requirement of replacing an anterior cervical steel plate to recover the cervical vertebra curvature.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications or alterations to this practice will occur to those skilled in the art and are intended to be within the scope of this invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (10)
1. A combined cervical vertebra anatomical titanium mesh vertebral plate, which is characterized by comprising a first terminal component (2) and a second terminal component (3) which are connected through a hollow cylindrical titanium mesh (1);
the first terminal assembly (2) comprises a first hollow cylinder (21), and a symmetrical horizontal support plate (22) extends out from one end face of the first hollow cylinder (21) far away from the titanium mesh (1) in the direction horizontally far away from the axial lead of the first hollow cylinder (21); the titanium mesh vertebral plate is supported and fixed with the adjacent vertebral body lower end plate;
the first terminal assembly (2) further comprises a first vertical fixing plate (23) located outside the first hollow cylinder (21) and extending in a direction vertically away from the first hollow cylinder (21) for fixing to the lateral surface of an adjacent vertebral body;
the part, except the horizontal supporting plate (22) and the first vertical fixing plate (23), of one end face of the first hollow cylinder (21) far away from the titanium mesh (1) is arranged to be an arched face matched with the lower end plate face of the adjacent vertebral body;
the other end of the first hollow cylinder (21) is connected with one end of the titanium net (1) through a connecting component;
the second terminal assembly (3) comprises a second hollow cylinder (31), the second hollow cylinder (31) is connected with the other end of the titanium mesh (1) through the connecting component; a second vertical fixing plate (32) extends from one end face, far away from the titanium mesh (1), of the second hollow cylinder (31) and is used for being fixed on the outer side face of an adjacent vertebral body; the second vertical fixing plate (32) is coaxially arranged with the first vertical fixing plate (23).
2. The titanium mesh lamina according to claim 1, characterized in that the through-hole of the titanium mesh (1) is provided as a first circular through-hole (11) of circular shape.
3. The titanium mesh lamina according to claim 2, characterized in that the connecting means comprise a second circular through hole and a fixing peg (12) respectively provided on the side walls of the first hollow cylinder (21), of the second hollow cylinder (31); the first circular through hole (11) and the second circular through hole are internally provided with matched internal threads, and the fixing nail (12) is provided with threads matched with the internal threads; the first hollow cylinder (21) and the second hollow cylinder (31) have a diameter smaller than that of the titanium mesh (1), and both can be inserted into a hollow portion of the titanium mesh (1).
4. The titanium mesh vertebral plate according to claim 3, characterized in that said titanium mesh (1) has a diameter comprised between 10 and 17 mm; the diameters of the first hollow cylinder (21) and the second hollow cylinder (31) are 8-15 mm.
5. The titanium mesh vertebral plate of claim 1, wherein at least one screw hole is provided on each of said horizontal support plate (22), said first vertical fixation plate (23) and said second vertical fixation plate (32).
6. The titanium mesh vertebral plate according to claim 5, characterized in that said first vertical fixation plate (23) and said second vertical fixation plate (32) are provided with three screw holes, respectively provided on the three vertices of a regular triangle.
7. The titanium mesh lamina of claim 1, wherein said first terminal member (2) and said second terminal member (3) are each integrally formed.
8. The titanium mesh lamina of claim 1, wherein said first terminal member (2), said titanium mesh (1) and said second terminal member (3) are all made of titanium alloy.
9. The titanium mesh lamina of claim 1, wherein the horizontal support plate (22) is at the same horizontal plane as the highest point of the arcuate surface.
10. The titanium mesh lamina of claim 1, wherein the horizontal support plate (22) is configured in cross-section in an arch shape that mates with the inferior endplate of an adjacent vertebral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120670675.2U CN215821124U (en) | 2021-04-01 | 2021-04-01 | Combined cervical vertebra anatomical titanium mesh vertebral plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120670675.2U CN215821124U (en) | 2021-04-01 | 2021-04-01 | Combined cervical vertebra anatomical titanium mesh vertebral plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215821124U true CN215821124U (en) | 2022-02-15 |
Family
ID=80187804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120670675.2U Expired - Fee Related CN215821124U (en) | 2021-04-01 | 2021-04-01 | Combined cervical vertebra anatomical titanium mesh vertebral plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215821124U (en) |
-
2021
- 2021-04-01 CN CN202120670675.2U patent/CN215821124U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220215 |