CN202497224U - Atlas posterior arch fixing device - Google Patents
Atlas posterior arch fixing device Download PDFInfo
- Publication number
- CN202497224U CN202497224U CN2012200825439U CN201220082543U CN202497224U CN 202497224 U CN202497224 U CN 202497224U CN 2012200825439 U CN2012200825439 U CN 2012200825439U CN 201220082543 U CN201220082543 U CN 201220082543U CN 202497224 U CN202497224 U CN 202497224U
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- Prior art keywords
- fixing
- screw
- arch
- atlas
- curvature
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- 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.)
- Expired - Fee Related
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- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The utility model relates to an atlas posterior arch fixing device. The device is composed of two fixing plates which have the same curvature and are cooperated with each other through a stepped matching surface. The two fixing plates are fixed via a fixing screw arranged on an adjusting groove. Screw holes are symmetrically disposed on two sides of the device. A screw is sleeved in a ball vortex fixing structure inside each screw hole. The top of each screw is equipped with a locking mechanism. The atlas posterior arch fixing device is composed of the fixing plates with curvature, is tightly plastered to wrap the atlas posterior arch, is tight for fixing, helps to avoid high incisure caused by straight fixing plates, and also helps to avoid dangers of postoperative complications caused by adverse events because of the high incisure. The two fixing plates can form a locking mechanism, can be stretched and retracted, and are convenient for fixing different vertebral bodies.
Description
Technical field
This utility model belongs to medical instruments field, is specifically related to a kind of arch of posterior atlas holder.
Background technology
Atlas Jefferson fracture is a kind of specific type of fracture of cervical vertebra, as involves the joint or with ligament rapture stability extreme difference, need operative treatment.Still there is not at present a kind of good internal fixation system, Application V ertex nail-stick system mostly, stability obtained realizing at once, makes the patient can early ambulation.But this system's head of a nail is big, incisura is high, has the problem of the following aspects: 1. can form synovial bursa in the part after fixing and produce pain; 2. long-term pain and can be caused the patient to be swan neck deformity; 3. stimulate neck 1,2 nerves, cause greater occipital nerve pain.
The utility model content
The technical problem that this utility model solved provides a kind of danger that causes post-operative complication of avoiding the adverse events that high incisura brings, is adjacent to the parcel arch of posterior atlas, tight fixed arch of posterior atlas holder.
For solving above-mentioned technical problem, the technical scheme that this utility model is taked:
A kind of arch of posterior atlas holder; Its special character is: by two same curvature and suit the fixing head that face cooperates through stepped ramp type and constitute; Two fixing heads are fixed through the hold-down screw that is arranged on the regulating tank; The lateral symmetry of holder is provided with screw, and screw is located in the ball whirlpool fixed structure in the screw; The head of described screw is provided with retaining mechanism.
The curvature of two above-mentioned fixing heads is identical with arch of posterior atlas curvature.
The length of above-mentioned fixing head is 27mm, and width is 8mm, and thickness is 2mm.
The width of the regulating tank on the above-mentioned fixing head is 4mm.
The length of above-mentioned screw is 26-32mm.
It is 18mm that the stepped ramp type of above-mentioned fixing head suits the face length degree, and width is 8mm, and thickness is 1mm.
Compared with prior art, the beneficial effect of this utility model:
This utility model is made up of the fixing head that has curvature, is adjacent to the parcel arch of posterior atlas, and is closely fixing; Prevent the high problem of incisura that straight plate fixing head brings; Avoided the danger that causes post-operative complication of the adverse events that high incisura brings, two fixing heads can form retaining mechanism, can stretch; Retraction is convenient to the fixing of different vertebral bodys.
Description of drawings
Fig. 1 is the structural representation of this utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the partial sectional view of Fig. 1;
Fig. 4 is the user mode figure of this utility model.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment this utility model is elaborated.
Referring to Fig. 1-4; This utility model is by two same curvature and suit the fixing head 1 that face cooperates through stepped ramp type and constitute; Two fixing heads 1 are fixing through the hold-down screw 3 that is arranged on the regulating tank 5; The lateral symmetry of holder is provided with screw 4, and screw 2 is located in the ball whirlpool fixed structure 6 in the screw 4; The head of described screw 2 is provided with retaining mechanism 7.
The curvature of two above-mentioned fixing heads 1 is identical with arch of posterior atlas curvature.
The length of above-mentioned fixing head 1 is 27mm, and width is 8mm, and thickness is 2mm.
The width of the regulating tank 5 on the above-mentioned fixing head 1 is 4mm.
The length of above-mentioned screw 2 is 26-32mm, and the every increase of length 1mm is a model.
It is 18mm that the stepped ramp type of above-mentioned fixing head 1 suits the face length degree, and width is 8mm, and thickness is 1mm.
Claims (6)
1. arch of posterior atlas holder; It is characterized in that: suit fixing head (1) formation that face cooperates by two same curvature and through stepped ramp type; Two fixing heads (1) are fixing through the hold-down screw (3) that is arranged on the regulating tank (5); The lateral symmetry of holder is provided with screw (4), and screw (2) is located in the ball whirlpool fixed structure (6) in the screw (4); The head of described screw (2) is provided with retaining mechanism (7).
2. arch of posterior atlas holder according to claim 1 is characterized in that: the curvature of described two fixing heads (1) is identical with arch of posterior atlas curvature.
3. arch of posterior atlas holder according to claim 1 and 2 is characterized in that: the length of described fixing head (1) is 27mm, and width is 8mm, and thickness is 2mm.
4. arch of posterior atlas holder according to claim 3 is characterized in that: the width of the regulating tank (5) on the described fixing head (1) is 4mm.
5. arch of posterior atlas holder according to claim 3 is characterized in that: the length of described screw (2) is 26-32mm.
6. arch of posterior atlas holder according to claim 3 is characterized in that: it is 18mm that the stepped ramp type of described fixing head (1) suits the face length degree, and width is 8mm, and thickness is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200825439U CN202497224U (en) | 2012-03-07 | 2012-03-07 | Atlas posterior arch fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200825439U CN202497224U (en) | 2012-03-07 | 2012-03-07 | Atlas posterior arch fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202497224U true CN202497224U (en) | 2012-10-24 |
Family
ID=47033858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200825439U Expired - Fee Related CN202497224U (en) | 2012-03-07 | 2012-03-07 | Atlas posterior arch fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202497224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106974715A (en) * | 2017-03-31 | 2017-07-25 | 张银顺 | A kind of Study of Atlas Fracture by Finite fixator |
| CN106974713A (en) * | 2017-03-31 | 2017-07-25 | 张银顺 | A kind of way of escape Study of Atlas Fracture by Finite reduction fixture device |
-
2012
- 2012-03-07 CN CN2012200825439U patent/CN202497224U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106974715A (en) * | 2017-03-31 | 2017-07-25 | 张银顺 | A kind of Study of Atlas Fracture by Finite fixator |
| CN106974713A (en) * | 2017-03-31 | 2017-07-25 | 张银顺 | A kind of way of escape Study of Atlas Fracture by Finite reduction fixture device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20130307 |