CN216090727U - Internal fixing system for anterior cervical steel plate - Google Patents
Internal fixing system for anterior cervical steel plate Download PDFInfo
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- CN216090727U CN216090727U CN202023070423.0U CN202023070423U CN216090727U CN 216090727 U CN216090727 U CN 216090727U CN 202023070423 U CN202023070423 U CN 202023070423U CN 216090727 U CN216090727 U CN 216090727U
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- locking screw
- adjusting screw
- screw hole
- locking
- anterior cervical
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Abstract
The utility model discloses an internal fixing system of an anterior cervical steel plate, which is used for treating cervical vertebra in an anterior fixing mode. This internal fixation system includes anterior cervical spine steel sheet and adjusting screw, be equipped with the screw punch combination of a plurality of rows parallel arrangement each other on the anterior cervical spine steel sheet, every screw punch combination of row comprises two close-proximity adjusting screw holes, adjusting screw installs in adjusting screw hole, its structural feature still includes locking screw, adjacent department at every adjusting screw hole is equipped with locking screw hole, be equipped with in the locking screw hole with locking screw assorted internal thread, locking screw hole's top department still is equipped with the pin fin assorted recess with locking screw, locking screw installs in locking screw hole, locking screw's pin fin is located the recess and compresses tightly adjusting screw's pin fin. The utility model has the advantages of simple structure, convenient operation, quick fixation, safety and reliability.
Description
Technical Field
The utility model relates to an internal fixing system of an anterior cervical steel plate, which is used for treating cervical vertebra in an anterior fixing mode and belongs to the technical field of medical instruments.
Background
The simple bone grafting fusion of anterior cervical spine is because the bone grafting interface lacks reliable stabilizing means, and the bone grafting piece that takes place easily drops, the bone grafting is not healed or postpones healing or the formation of artificial joint, and anterior cervical way decompression bone grafting fusion's artificial joint incidence is high, and the artificial joint incidence of the bone grafting fusion of multisection is higher, becomes the difficult problem of puzzlement clinician.
The appearance of the anterior cervical steel plate not only provides a good fixing means for clinic, provides a stable support for anterior cervical fusion, shortens the fusion time of bone grafting blocks, improves the fusion rate, but also can prevent delayed cervical kyphosis and keep the height of cervical vertebra. The technique of using the anterior cervical steel plate to perform anterior fixation therapy on cervical vertebra is widely applied to clinical treatment of intervertebral disc pathological changes, wounds, tumors, deformities, artificial joints and the like. The anterior cervical steel plate is fixed by using screws, but after the operation is completed, the screws are easy to loosen and exit the anterior cervical steel plate, so that the operation failure is caused or even the life is threatened, and the serious influence is brought to the patient.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a cervical vertebra anterior steel plate internal fixing system which is simple in structure, convenient to operate, fast in fixing, safe and reliable.
The technical scheme adopted by the utility model for solving the problems is as follows: this internal fixation system includes anterior cervical spine steel sheet and adjusting screw, be equipped with the screw punch combination of a plurality of rows parallel arrangement each other on the anterior cervical spine steel sheet, every screw punch combination of row comprises two close-proximity adjusting screw holes, adjusting screw installs in adjusting screw hole, its structural feature still includes locking screw, adjacent department at every adjusting screw hole is equipped with locking screw hole, be equipped with in the locking screw hole with locking screw assorted internal thread, locking screw hole's top department still is equipped with the pin fin assorted recess with locking screw, locking screw installs in locking screw hole, locking screw's pin fin is located the recess and compresses tightly adjusting screw's pin fin.
The upper outer edge of the adjusting screw hole is intersected with the lower inner edge of the groove, the nail head of the locking screw is positioned above the nail head of the adjusting screw, and the nail head of the locking screw tightly presses the nail head of the adjusting screw in the adjusting screw hole.
The nail head of the locking screw is provided with a notch.
The adjusting screw and the locking screw are both inner hexagon screws or inner plum blossom screws.
The anterior cervical steel plate is provided with a perspective window.
Compared with the prior art, the utility model has the following beneficial effects: 1. the internal fixation system is simple in structure, a plurality of rows of screw hole groups are arranged on the anterior cervical spine steel plate, each row of screw hole group consists of two adjacent adjusting screw holes, self-tapping self-drilling adjusting screws are arranged in the adjusting screw holes, the adjusting screw holes are eccentric holes, so that the angle between the two adjusting screws in each row of screw hole groups can be adjusted within a certain range, the adjustable angle of each adjusting screw is wide, the adaptability of each adjusting screw is enhanced, convenience is provided for the operation, the adjusting screws and the anterior cervical spine steel plate generate relative motion when being implanted to play a role in pressurizing a bone grafting block, and the bone grafting fusion can be promoted by pressurizing the bone grafting block; 2. the internal fixing system comprises a locking screw, wherein an internal thread matched with the locking screw is arranged in the locking screw hole, a groove matched with the nail head of the locking screw is arranged above the locking screw hole, the locking screw is screwed into the locking screw hole after an adjusting screw is installed in the adjusting screw hole, the nail head of the locking screw is positioned above the nail head of the adjusting screw due to the fact that the upper outer edge of the adjusting screw hole is intersected with the lower inner edge of the groove, the nail head of the locking screw is tightly pressed in the adjusting screw hole by the nail head of the locking screw, the internal stability of the adjusting screw mainly depends on how the adjusting screw is tightly pressed, the good pressing can effectively integrate the anterior cervical vertebra steel plate and the adjusting screw into a whole, and the fatigue fracture at the adjusting screw hole is effectively reduced, the pressing mode is not only reliable, but also is not easy to deform and lose efficacy, and the clinical operation is very convenient; 3. the anterior cervical steel plate is provided with a perspective window according to the physiological radian and the length of each vertebral body, the anterior cervical steel plate is a low-incisura pre-bending steel plate matched with the physiological curvature of the cervical vertebra, the problems of uneven load distribution, uneven stress distribution and the like can be effectively solved, meanwhile, the anterior cervical steel plate is required to be compressed on the bone, the width and the thickness of the steel plate are suitable, the cervical longissimus muscle is often required to be cut when the width is too wide, the narrow plate cannot play a fixing role, the bone grafting block can be influenced, although the mechanical property of the thick steel plate is good, the postoperative swallowing discomfort of a patient can be caused, the thickness of the steel plate is required by mechanics, the thickness of the steel plate is as thin as possible, and the thickness of the anterior cervical steel plate in the fixing system is 2-4 mm.
Drawings
FIG. 1 is a front view of an embodiment of the present invention.
Fig. 2 is a cross-sectional view of fig. 1.
Fig. 3 is a top view of an embodiment of the present invention.
Fig. 4 is a perspective view of an embodiment of the present invention.
Fig. 5 is a front view of an anterior cervical plate in an embodiment of the utility model.
Fig. 6 is a cross-sectional view of fig. 5.
Fig. 7 is an enlarged view of fig. 6 at a.
Fig. 8 is a top view of an anterior cervical plate in an embodiment of the utility model.
Fig. 9 is a perspective view of an anterior cervical plate in an embodiment of the utility model.
Fig. 10 is a front view of a locking screw in an embodiment of the present invention.
Fig. 11 is a top view of a locking screw in an embodiment of the present invention.
Fig. 12 is a perspective view of a locking screw in an embodiment of the present invention.
FIG. 13 is a schematic view of the neck of a human body according to the embodiment of the present invention.
Detailed Description
Referring to fig. 1-12, the present embodiment includes an anterior cervical steel plate 1, an adjusting screw 2 and a locking screw 4, where the adjusting screw 2 and the locking screw 4 are both hexagon socket head cap screws, and a gap 7 is formed on a head of the locking screw 4, and the gap 7 plays a role of self-locking and fixing.
The anterior cervical steel plate 1 is provided with a plurality of rows of screw hole groups which are arranged in parallel, and each row of screw hole group consists of two adjacent adjusting screw holes 3. The anterior cervical steel plate 1 is provided with a perspective window 8.
Adjusting screw 2 installs in adjusting screw hole 3, is equipped with locking screw hole 5 in every adjusting screw hole 3's adjacent department, is equipped with in locking screw hole 5 with locking screw 4 assorted internal thread, locking screw hole 5's top still be equipped with locking screw 4's pin fin assorted recess 6. Because the upper outer edge 31 of the adjusting screw hole 3 is intersected with the lower inner edge 61 of the groove 6, after the locking screw 4 is screwed into the locking screw hole 5, the nail head of the locking screw 4 is positioned above the nail head of the adjusting screw 2, and the nail head of the locking screw 4 presses the nail head of the adjusting screw 2 in the adjusting screw hole 3.
Referring to fig. 13, when in use, the adjusting screw 2 is screwed into the cervical vertebra from the adjusting screw hole 3 of the anterior cervical steel plate 1, the anterior cervical steel plate 1 is fixed on the cervical vertebra, then the locking screw 4 is screwed into the locking screw hole 5 and screwed, and the nail head of the locking screw 4 presses the nail head of the adjusting screw 2 in the adjusting screw hole 3, so that the adjusting screw 2 is fixed, and is prevented from loosening and falling off.
Furthermore, the adjusting screw 2 and the locking screw 4 may also be internal torx screws.
Claims (5)
1. The utility model provides a way steel sheet internal fixation system before cervical vertebra, includes way steel sheet (1) and adjusting screw (2) before the cervical vertebra, is equipped with a plurality of rows of parallel arrangement's of each other screw hole group on way steel sheet (1) before the cervical vertebra, and every row of screw hole group comprises adjusting screw hole (3) of two next-door neighbour, and adjusting screw (2) are installed in adjusting screw hole (3), characterized by: still include locking screw (4), adjacent department at every adjusting screw hole (3) is equipped with locking screw hole (5), be equipped with in locking screw hole (5) with locking screw (4) assorted internal thread, the top of locking screw hole (5) still is equipped with pin fin assorted recess (6) of locking screw (4), install in locking screw hole (5) locking screw (4), the pin fin of locking screw (4) is located recess (6) and compresses tightly the pin fin of adjusting screw (2).
2. The anterior cervical plate internal fixation system of claim 1, wherein: the upper outer edge of the adjusting screw hole (3) is intersected with the lower inner edge of the groove (6), the nail head of the locking screw (4) is positioned above the nail head of the adjusting screw (2), and the nail head of the adjusting screw (2) is tightly pressed in the adjusting screw hole (3) by the nail head of the locking screw (4).
3. The anterior cervical plate internal fixation system of claim 1, wherein: the nail head of the locking screw (4) is provided with a notch (7).
4. The anterior cervical plate internal fixation system of claim 1, wherein: the adjusting screw (2) and the locking screw (4) are both inner hexagon screws or inner plum blossom screws.
5. The anterior cervical plate internal fixation system of claim 1, wherein: the anterior cervical steel plate (1) is provided with a perspective window (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023070423.0U CN216090727U (en) | 2020-12-18 | 2020-12-18 | Internal fixing system for anterior cervical steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023070423.0U CN216090727U (en) | 2020-12-18 | 2020-12-18 | Internal fixing system for anterior cervical steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216090727U true CN216090727U (en) | 2022-03-22 |
Family
ID=80686171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023070423.0U Expired - Fee Related CN216090727U (en) | 2020-12-18 | 2020-12-18 | Internal fixing system for anterior cervical steel plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216090727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112603510A (en) * | 2020-12-18 | 2021-04-06 | 浙江康慈医疗科技有限公司 | Internal fixing system for anterior cervical steel plate |
-
2020
- 2020-12-18 CN CN202023070423.0U patent/CN216090727U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112603510A (en) * | 2020-12-18 | 2021-04-06 | 浙江康慈医疗科技有限公司 | Internal fixing system for anterior cervical steel plate |
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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: 20220322 |