CN204106184U - Nail holder put by a kind of screw for lateral mass of atlas - Google Patents
Nail holder put by a kind of screw for lateral mass of atlas Download PDFInfo
- Publication number
- CN204106184U CN204106184U CN201420617661.4U CN201420617661U CN204106184U CN 204106184 U CN204106184 U CN 204106184U CN 201420617661 U CN201420617661 U CN 201420617661U CN 204106184 U CN204106184 U CN 204106184U
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- CN
- China
- Prior art keywords
- circular sleeve
- screw
- atlas
- nail
- lateral mass
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of screw for lateral mass of atlas and put nail holder, comprise: the circular sleeve of handle, through, described handle is provided with vertical pole, described vertical pole surface thereof arranges circular sleeve, described circular sleeve head is arc, and is provided with short slot part on the upside of described circular sleeve head.This utility model can reduce puts nail operating technology difficulty, avoids putting in nail process accidentally injuring neural blood vessel thus improving and puts nail safety.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of screw for lateral mass of atlas and puts nail holder.
Background technology
Atlas and axis nail rod is fixedly the mainstream technology for the treatment of atlanto-axial instability at present, is also the highly difficult operation of field of spinal surgery simultaneously.Inserting lateral mass of atlas screw is carry out technical difficult points when atlas and axis is fixed.Lateral mass of atlas Screw entrance point is positioned at lateral mass mid point, surperficial curved projection, and C2 nerve root is walked crosswise from its surface and passed through, and companion goes very large venous plexus.
Traditional nail method of putting be the catch of assistant's nerve dissector in art by C2 nerve root and venous plexus caudal ward tractive, expose entry point, patient with passage-opening awl entry point place preparation nail road.Because lateral mass entry point shows curved projection, and lateral mass cortical bone is hard, during with passage-opening awl preparation nail road, passage-opening awl very easily slides to both sides, accidentally injure peripheral nerve blood vessel, cause massive hemorrhage and postoperative neuralgia of greater occipital nerve in art, be even likely strayed into canalis spinalis Spinal Cord; Under the pathologic condition such as rheumatoid, osteoarthritis, lateral mass hardens, and above-mentioned situation more easily occurs.In addition, this process system two people compounding practice, very easily damages venous plexus and C2 nerve root because compounding practice is inharmonious, causes reluctant massive hemorrhage and postoperative troublesome neuralgia of greater occipital nerve in art.There is no good operating theater instruments at present and can evade the problems referred to above.
Utility model content
For solving the technical problem of existing existence, this utility model embodiment provides a kind of screw for lateral mass of atlas to put nail holder, can reduce and put nail operating technology difficulty, avoids putting in nail process accidentally injuring neural blood vessel thus improving and puts nail safety.
For achieving the above object, the technical scheme of this utility model embodiment is achieved in that
This utility model embodiment provides a kind of screw for lateral mass of atlas to put nail holder, this screw is put nail holder and is comprised: the circular sleeve of handle, through, described handle is provided with vertical pole, described vertical pole surface thereof arranges circular sleeve, described circular sleeve head is arc, and is provided with short slot part on the upside of described circular sleeve head.
In such scheme, the afterbody of described circular sleeve is provided with the Inlet sleeve that diameter is greater than circular sleeve, the through hole at described Inlet sleeve center and the through hole at circular sleeve center through, described vertical pole is connected with Inlet sleeve.
In such scheme, the arc of described circular sleeve head is 120 degree.
Compared with prior art, the beneficial effects of the utility model:
This utility model can reduce puts nail operating technology difficulty, avoids putting in nail process accidentally injuring neural blood vessel thus improving the lateral mass of atlas screw putting nail safety and puts nail holder.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to partial enlarged drawing.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
This utility model embodiment provides a kind of screw for lateral mass of atlas to put nail holder, as Fig. 1, shown in 2, this screw is put nail holder and is comprised: handle 1, the circular sleeve 3 of through, described handle 1 is provided with vertical pole 2, described vertical pole 2 surface thereof arranges circular sleeve 3, described circular sleeve 3 head is arc, and be provided with short slot part 5 on the upside of described circular sleeve 3 head, the length of described short slot part 5 is 2cm, mate with below arch of posterior atlas to make it, make the lateral mass screw when finally putting nail can be close to arch of posterior atlas lower wall to insert, space as much as possible also be left to C2 nerve root after so just making to put nail, thus avoid postoperative neuralgia of greater occipital nerve to greatest extent.
The afterbody of described circular sleeve 3 is provided with the Inlet sleeve 4 that diameter is greater than circular sleeve 3, the through hole at described Inlet sleeve 4 center and the through hole at circular sleeve 3 center through, described vertical pole 2 is connected with Inlet sleeve 4.
The arc of described circular sleeve 3 head is 120 degree, and like this, head and the lateral mass of atlas surface of described circular sleeve 3 match, and can make to put nail holder card jail at entry point place, not easily slippage occurs when putting nail.
Described circular sleeve 3 is 4cm with the through hole internal diameter at Inlet sleeve 4 center, can hold the screw tap that diameter is 3.5cm.
When using this utility model, appear entry point and retract neuroprotective blood vessel and can be completed by the independent step of patient, then passage-opening awl just can be inserted in sleeve from Inlet sleeve 4 by patient one people, under the protection and guiding of circular sleeve 3, be prepared nail road.Overall process can be completed separately by a people, and both simplified the operation saving manpower, turn avoid two people operation may bring inharmonious.
After surgical exposure arch of posterior atlas and venous plexus; circular sleeve 3 is close to arch of posterior atlas lower edge insert; the arc head end of holder sleeve is stuck on lateral mass of atlas, then passage-opening awl is inserted in sleeve in Inlet sleeve 4, under the protection and guiding of sleeve, be prepared nail road.
The above; be only preferred embodiment of the present utility model; be not intended to limit protection domain of the present utility model, all do in spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (3)
1. nail holder put by the screw for lateral mass of atlas, it is characterized in that, this screw is put nail holder and is comprised: the circular sleeve (3) of handle (1), through, described handle (1) is provided with vertical pole (2), described vertical pole (2) surface thereof arranges circular sleeve (3), described circular sleeve (3) head is arc, and is provided with short slot part (5) on the upside of described circular sleeve (3) head.
2. nail holder put by the screw for lateral mass of atlas according to claim 1, it is characterized in that: the afterbody of described circular sleeve (3) is provided with the Inlet sleeve (4) that diameter is greater than circular sleeve (3), the through hole at described Inlet sleeve (4) center and the through hole at circular sleeve (3) center through, described vertical pole (2) is connected with Inlet sleeve (4).
3. nail holder put by the screw for lateral mass of atlas according to claim 1 and 2, it is characterized in that: the arc of described circular sleeve (3) head is 120 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617661.4U CN204106184U (en) | 2014-10-24 | 2014-10-24 | Nail holder put by a kind of screw for lateral mass of atlas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617661.4U CN204106184U (en) | 2014-10-24 | 2014-10-24 | Nail holder put by a kind of screw for lateral mass of atlas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204106184U true CN204106184U (en) | 2015-01-21 |
Family
ID=52323552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420617661.4U Expired - Fee Related CN204106184U (en) | 2014-10-24 | 2014-10-24 | Nail holder put by a kind of screw for lateral mass of atlas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204106184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904574A (en) * | 2020-09-07 | 2020-11-10 | 郝定均 | Posterior atlantoaxial reposition fixing system |
-
2014
- 2014-10-24 CN CN201420617661.4U patent/CN204106184U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904574A (en) * | 2020-09-07 | 2020-11-10 | 郝定均 | Posterior atlantoaxial reposition fixing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |