CN204394665U - A kind of Cervical vertebra pedicle nail inserts guider - Google Patents
A kind of Cervical vertebra pedicle nail inserts guider Download PDFInfo
- Publication number
- CN204394665U CN204394665U CN201520036597.5U CN201520036597U CN204394665U CN 204394665 U CN204394665 U CN 204394665U CN 201520036597 U CN201520036597 U CN 201520036597U CN 204394665 U CN204394665 U CN 204394665U
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- China
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- cross bar
- cervical vertebra
- vertical pole
- length
- pedicle
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Abstract
This utility model provides a kind of Cervical vertebra pedicle nail to insert guider.This device is by cross bar and be attached thereto and vertical pole is in vertical direction formed, and described vertical pole is " ⊥ " shape with cross bar, and the length of cross bar is 3.8 ~ 4.2cm, and the length of vertical pole is 3 ~ 4 times of cross bar length.This utility model is used for before downward pedicle for cervical vertebra arch puts nail, cross bar is placed in the neighbouring cervical vertebra plate surface of homonymy, guided by vertical pole and determine that sagittal putting follows closely direction, by this guiding auxiliary device, effectively can reduce that operating time that in art, C-arm Fluoroscopy location brings extends, the generation of the various complication such as radiation harm and infection rate increase in art.
Description
Technical field:
This utility model relates to Cervical vertebra pedicle of vertebral arch and puts relevant apparatus in nail, and especially one is used to guide Cervical vertebra pedicle nail and inserts guider.
Background technology:
Nail pedicle fix technology, with its superior biomechanics characteristic, has been widely used in the treatment of various spine disorders.But different from Thoracolumbar disk pedicle of vertebral arch, pedicle for cervical vertebra arch, because anatomical variation is large, diameter is little, close on the important feature such as vertebral artery, spinal cord and nerve root around, is the difficult point that vertebral arch pedicle of vertebral column puts nail always." free-hand method " is put nail and is remained pedicle for cervical vertebra arch and put the method that nail the most often adopts, but lack reliable anatomic marker as a reference putting in nail process, the angle of especially following closely road sagittal plain still to need to rely on repeatedly in art X-ray examination even CT scan determine direction, thus add the risk of radiation harm and Infection in operation in operating time, art.
And more existing pedicle for cervical vertebra arch sights, one is that design is complicated, operation is inconvenient, value for clinical application is low, two is mostly these sights are designed by the outer dip angle for determining pedicle for cervical vertebra arch transverse section, and can do nothing to help and determine that pedicle of vertebral arch is entered to follow closely angle sagittal.Therefore, though use these vertebral pedicle guidance units auxiliary under, still need the sagittal direction of fluoroscopy during operation determination pedicle of vertebral arch.
Summary of the invention:
The purpose of this utility model is intended to overcome the deficiencies in the prior art, provides a kind of Cervical vertebra pedicle nail to insert guider.Utilize this device, guide determine pedicle nail enter to follow closely direction, effectively can to reduce in art that the operating time that C-arm Fluoroscopy location repeatedly brings extends, the generation of the various related complication such as radiation harm and infection rate increase in art.
The purpose of this utility model realizes by following technical measures:
This device is by cross bar and be attached thereto and vertical pole is in vertical direction formed, described vertical pole and cross bar are in " ⊥ " shape, the length of cross bar is 3.8 ~ 4.2cm, cross bar is used for the direction of its neighbouring lamina surface tangent line of cervical vertebra of determining to intend inserting pedicle nail, the length of vertical pole is 3 ~ 4 times of cross bar length, guided by vertical pole and determine that sagittal putting follows closely direction, vertical pole is too short, is unfavorable for guiding pin inserting needle direction at art middle finger, long, is unfavorable for sterilization of instruments.
The purpose of this utility model also realizes by following technical measures:
The scheme when length of described cross bar is 4cm, the length of vertical pole is 14cm is optimal technical solution.
Its crossbar sections, before the built-in nail of downward pedicle for cervical vertebra arch, is placed in the neighbouring cervical vertebra plate surface of homonymy by this utility model, is guided determine that sagittal putting follows closely direction by vertical pole.
Cross bar of the present utility model is used for when the built-in nail of downward pedicle for cervical vertebra arch, it is longitudinally placed in the neighbouring cervical vertebra plate surface of homonymy, is then guided by the vertical pole in perpendicular direction and determines that sagittal the putting of pedicle of vertebral arch follows closely direction.
This utility model has following beneficial effect:
Under auxiliary guiding of the present utility model, can determine that the sagittal plane of Cervical vertebra pedicle nail enters to follow closely direction more accurately, thus effectively can reduce that operating time that in art, C-arm Fluoroscopy location brings extends, the generation of the various complication such as radiation harm and infection rate increase in art.
This utility model is through clinic trial, by showing the Measurement and analysis result of Cervical vertebra pedicle of vertebral arch sagittal plane angle, pedicle of vertebral arch sagittal plane angle and its homonymy are connected the tangent line almost degree in a vertical angle on cervical vertebra plate surface up and down, and this angle all keeps substantially constant in the pedicle of vertebral arch of each sections of Cervical vertebra.Therefore, utilize this utility model, just can guide more accurately and determine that pedicle nail enters to follow closely direction sagittal, in conjunction with preoperative CT, the camber angle of accurate judgement pedicle for cervical vertebra arch in transverse section, the underlying nail of guiding of angle and this utility model device successively, ensures to put nail accuracy rate, thus just effectively can reduce that the operating time that in art, C-arm Fluoroscopy location brings extends, radiation endangers and the generation of the various complication such as infection rate increase in art.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of this utility model embodiment.
In figure: 1-cross bar, 2-vertical pole.
Detailed description of the invention:
Relevant detailed description of the present utility model and technology contents, coordinate accompanying drawing to be described as follows, but accompanying drawing only provides with reference to the use with explanation, is not used for being limited this utility model.
This device is by cross bar 1 and be attached thereto and vertical pole 2 is in vertical direction formed, and described vertical pole 2 and cross bar 1 are in " ⊥ " shape, and the length of cross bar 1 is 3.8 ~ 4.2cm, and the length of vertical pole 2 is 3 ~ 4 times of cross bar 1 length.Wherein the length of cross bar is 4cm, is optimal technical solution of the present utility model when the length of vertical pole 2 is 14cm.
Claims (2)
1. a Cervical vertebra pedicle nail inserts guider, it is characterized in that this device is by cross bar (1) with to be attached thereto and vertical pole (2) is in vertical direction formed, described vertical pole (2) and cross bar (1) are in " ⊥ " shape, the length of cross bar (1) is 3.8 ~ 4.2cm, and the length of vertical pole (2) is 3 ~ 4 times of cross bar (1) length.
2. a kind of Cervical vertebra pedicle nail according to claim 1 inserts guider, it is characterized in that the length of described cross bar is 4cm, and the length of vertical pole (2) is 14cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520036597.5U CN204394665U (en) | 2015-01-19 | 2015-01-19 | A kind of Cervical vertebra pedicle nail inserts guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520036597.5U CN204394665U (en) | 2015-01-19 | 2015-01-19 | A kind of Cervical vertebra pedicle nail inserts guider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204394665U true CN204394665U (en) | 2015-06-17 |
Family
ID=53418576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520036597.5U Expired - Fee Related CN204394665U (en) | 2015-01-19 | 2015-01-19 | A kind of Cervical vertebra pedicle nail inserts guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204394665U (en) |
-
2015
- 2015-01-19 CN CN201520036597.5U patent/CN204394665U/en not_active Expired - Fee Related
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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: 20150617 Termination date: 20180119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |