CN211094603U - Improved internal fixation instrument for anterior cervical vertebra operation - Google Patents
Improved internal fixation instrument for anterior cervical vertebra operation Download PDFInfo
- Publication number
- CN211094603U CN211094603U CN201921406228.5U CN201921406228U CN211094603U CN 211094603 U CN211094603 U CN 211094603U CN 201921406228 U CN201921406228 U CN 201921406228U CN 211094603 U CN211094603 U CN 211094603U
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- China
- Prior art keywords
- titanium
- cage
- cervical vertebra
- internal fixation
- anterior cervical
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- Expired - Fee Related
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Abstract
An improved internal fixation instrument for anterior cervical operation comprises a titanium cage, circular gaskets at two sides of the titanium cage and a titanium plate which form a three-dimensional support structure. More rhombic holes are formed in the wall of the titanium cage, the inner female threads are meshed and connected with the male threads on the screw shaft on one side surface of the circular gasket, and the toothed ring of the outer ring on the other side surface of the circular gasket is fixed on the upper cervical vertebra surface bone and the lower cervical vertebra surface bone to prevent sliding and shifting. The titanium plate hole slots on the titanium plate bridge are riveted by screws after the front side of the cervical vertebra and the titanium cage hole slots are matched, the sclerotin on the front side of the upper cervical vertebra body and the front side of the lower cervical vertebra body of the titanium plate are attached to each other, and the screws rivet the sclerotin with the cervical vertebra body through the screw holes, so that the technical problems that the titanium cage sinks, the screws are loosened and the titanium plate shifts after anterior cervical vertebra surgery are solved, and the surgical effect and the medical safety are effectively guaranteed.
Description
Technical Field
The utility model relates to a medical instrument field is implanted to human cervical vertebra, concretely relates to anterior cervical spine operation internal fixation instrument of improvement.
Background
After the anterior cervical vertebra operation is performed, a titanium cage or an ilium taken from the body is selected for implantation after the vertebral body is excised, and the anterior part of the vertebral body is fixed by an anterior cervical way titanium plate, which is a commonly used operation method in clinic at present. However, the defects of titanium cage sinking, screw loosening and titanium plate displacement after operation often occur, serious patients may cause complications such as internal fixation operation failure, intervertebral foramen reduction, spinal cord and/or cervical nerve root compression and the like, the development of anterior cervical spine operation is limited to a certain extent, and the development of the subject of bone surgery is restricted.
Disclosure of Invention
The to-be-solved problem of the utility model is to provide an internal fixation instrument of anterior cervical vertebra operation of improvement, titanium cage, circular gasket, titanium board are supporting to make up into three-dimensional stable structure, effectively reduce and prevent that the titanium cage from sinking, do benefit to the improvement and plant the bone and fuse, and have not increase cervical vertebra operation complexity, characteristics such as safe in utilization.
In order to solve the problem, the utility model provides a technical scheme is that circular gasket, the titanium board triplex that mainly includes titanium cage, titanium cage both sides constitute three-dimensional bearing structure.
The titanium cage is of a hollow cylindrical structure, a plurality of rhombic holes distributed according to a certain rule are formed in the wall of the titanium cage, and an oblong titanium cage hole groove which is consistent with the long axis direction of the titanium cage is formed in one side of the titanium cage.
The inner side surface of the titanium cage wall is provided with female threads according to a certain pitch and depth.
A screw shaft with a certain height is installed on one side face of the circular gasket, male threads are formed in the surface of the screw shaft, the screw pitch and the height of the male threads are matched with those of the female threads on the inner side of the titanium cage wall, and the circular gasket is fixed on two sides of the titanium cage through mutual connection.
And a sawtooth-like tooth-shaped ring is arranged on the other side surface of the circular gasket and distributed in the outer ring area of the circular gasket.
The titanium plate is composed of titanium plate heads on two sides and a titanium plate bridge connecting the titanium plate heads on two sides in the middle, 2 symmetrical screw holes are arranged in the titanium plate heads, and oblong titanium plate hole grooves parallel to the long axis direction of the titanium plate are arranged on the titanium plate bridge.
And a screw is arranged in the titanium plate hole groove, and the titanium plate bridge is connected and riveted on the titanium plate hole groove of the titanium cage.
Screws are arranged in screw holes on the titanium plate head, and the titanium plate head is riveted, connected and fixed on the bone of the upper cervical vertebra body and the lower cervical vertebra body.
The beneficial effects of the utility model are that an improved internal fixation instrument for anterior cervical vertebra operation is composed of a titanium cage, two-side circular gaskets and a front side titanium plate into a stable three-dimensional support structure, thereby effectively ensuring the stability and safety of the postoperative cervical vertebra. The titanium cage adopts a hollow cylindrical design with diamond holes, bone grafting fusion is facilitated, and the female thread of the inner wall and the male thread arranged on the screw shaft on one side of the circular gasket are mutually adaptive and meshed, so that the circular gasket is conveniently fixed on two sides of the titanium cage. The round spacer is fixed on the upper and lower vertebral bodies through a tooth-shaped ring on the other side surface of the round spacer, so that the titanium cage is prevented from sinking into the vertebra while the sliding displacement is avoided. The titanium plate is connected and riveted on the front side of the titanium cage through the screws, the titanium plate hole grooves and the titanium cage hole grooves, and the titanium plate head is riveted on the bone on the front side of the upper cervical vertebra and the lower cervical vertebra through the screws and the screw holes, so that the stability among the titanium cage, the titanium plate and the cervical vertebra is guaranteed.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic view of the present invention;
in the figure, 1, a titanium cage, 2, a titanium cage wall, 3, diamond holes, 4, a titanium cage hole groove, 5, female-side threads, 6, a circular gasket, 7, a toothed ring, 8, male-side threads, 9, a screw shaft, 10, a screw, 11, a titanium plate head, 12, a titanium plate bridge, 13, a titanium plate hole groove and 14, screw holes are formed.
Detailed Description
The working principle and the working process of the utility model are as follows
The utility model provides an improved anterior cervical spine operation internal fixation instrument, the operation in-process, stuff the bone implant in titanium cage 1, a plurality of diamond holes 3 on the titanium cage wall 2 are favorable to the sclerotin to implant the fusion, circular gasket 6 one side has screw 9 to through the positive screw 8 on its surface with the inboard negative surface screw thread 5 interlock of titanium cage wall 2 with circular gasket 6 fixes on titanium cage 1 both sides, form confined cylindrical bearing structure, and fix on upper and lower cervical vertebra face sclerotin through the tooth shape ring 7 that circular gasket 6 another side set up. The titanium plate hole slots 13 on the titanium plate bridge 12 are riveted through the screws 10 after being opposite to the titanium cage hole slots 4 on the titanium cage 1 from the front side of the cervical vertebra, and simultaneously, the titanium plate heads 11 are riveted on the sclerotin on the front sides of the upper cervical vertebra and the lower cervical vertebra through the screw holes 14 by the screws 10 to form a three-dimensional stable supporting structure.
Claims (7)
1. The utility model provides an improved anterior cervical surgery internal fixation instrument, its characterized in that titanium cage (1), circular gasket (6), titanium board built-up connection become stable three-dimensional bearing structure, and the positive face screw thread (8) of seting up on spiral shell axle (9) surface on circular gasket (6) a side is seted up negative face screw thread (5) interlock each other and is linked up according to certain pitch and degree of depth with in titanium cage wall (2) medial surface, fixes circular gasket (6) in titanium cage (1) both sides.
2. The improved internal fixation instrument for anterior cervical surgery according to claim 1, wherein the titanium cage (1) is a hollow cylindrical structure, and the wall (2) of the titanium cage is provided with a plurality of rhombic holes (3) distributed according to a certain rule.
3. An improved anterior cervical internal fixation instrument as claimed in claim 1, wherein the outer ring area of the other side of the shaped washer (6) is fitted with a serrated ring (7) distributed in a zigzag manner.
4. The improved internal fixation instrument for anterior cervical surgery according to claim 1, wherein the side of the titanium cage (1) is provided with an oblong titanium cage hole groove (4) which is consistent with the long axis direction.
5. The improved internal fixation instrument for anterior cervical surgery according to claim 1, wherein the titanium plate bridge (12) is provided with an oblong titanium plate hole groove (13) parallel to the long axis direction of the titanium plate.
6. An improved anterior cervical surgical internal fixation instrument according to claim 1, wherein 2 symmetrical screw holes (14) are formed in the titanium plate head (11).
7. An improved anterior cervical surgical internal fixation instrument as claimed in claim 1, wherein the titanium cage hole groove (4), the titanium plate hole groove (13) and the screw hole (14) are provided with screws (10) for riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406228.5U CN211094603U (en) | 2019-08-28 | 2019-08-28 | Improved internal fixation instrument for anterior cervical vertebra operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406228.5U CN211094603U (en) | 2019-08-28 | 2019-08-28 | Improved internal fixation instrument for anterior cervical vertebra operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211094603U true CN211094603U (en) | 2020-07-28 |
Family
ID=71721937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921406228.5U Expired - Fee Related CN211094603U (en) | 2019-08-28 | 2019-08-28 | Improved internal fixation instrument for anterior cervical vertebra operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211094603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114098933A (en) * | 2021-11-25 | 2022-03-01 | 郝定均 | Cervical vertebra osteoporosis anterior fixing system |
-
2019
- 2019-08-28 CN CN201921406228.5U patent/CN211094603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114098933A (en) * | 2021-11-25 | 2022-03-01 | 郝定均 | Cervical vertebra osteoporosis anterior fixing system |
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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 |
Granted publication date: 20200728 Termination date: 20210828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |