CN201624768U - Guider for lower cervical vertebra anterior vertebral pedicle screw implantation - Google Patents
Guider for lower cervical vertebra anterior vertebral pedicle screw implantation Download PDFInfo
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- CN201624768U CN201624768U CN2010201212688U CN201020121268U CN201624768U CN 201624768 U CN201624768 U CN 201624768U CN 2010201212688 U CN2010201212688 U CN 2010201212688U CN 201020121268 U CN201020121268 U CN 201020121268U CN 201624768 U CN201624768 U CN 201624768U
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- radian
- chi
- pedicle screw
- lower cervical
- radian chi
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Abstract
A guider for lower cervical vertebra anterior vertebral pedicle screw implantation is characterized in that the guider comprises a positioning frame, a second radian ruler and a sighting bar, wherein the positioning frame comprises two positioning bars and a first radian ruler positioned between the positioning bars; the first radian ruler is marked with scales in the radian direction; the second radian ruler is marked with scales in the radian direction, and the top end is connected and intersected with the first radian ruler and can be moved and positioned in the circular arc direction of the first radian ruler; and the top end part of the sighting bar is connected with the second radian ruler and can be moved and positioned in the circular arc direction of the second radian ruler. Compared with the prior art, the utility model has the advantages of simple structure, low cost and convenient operation, and can provide accurate positioning for the lower cervical vertebra anterior vertebral pedicle screw implantation and improve the safety of the lower cervical vertebra anterior vertebral pedicle screw implantation.
Description
Technical field
This utility model relates to the aid in a kind of bone surgery, relates in particular to a kind of pedicle screw and inserts guider.
Background technology
Pedicle for cervical vertebra arch is a part the firmest in the cervical vertebra, is bringing into play important effect in the treatments such as following pedicle for cervical vertebra arch screw resets in the cervical vertebra wound, malformation correction, reconstruction.Present posterior cervical pedicle screw down has been widely used in clinical, has obtained gratifying effect.But infra cervical vertebra, compressing to cervical spinal is positioned at the place ahead mostly, posterior approach can not directly solve the problem that cervical spinal is oppressed at cervical vertebra, and existing lower cervical anterior internal fixation system can not provide enough stability, often need combination cervical posterior approach down, so that enough stability to be provided.The lower cervical anterior cervical arc root screw internal fixing system can be in conjunction with lower cervical anterior operation and the fixed advantage of following pedicle for cervical vertebra arch screw.
When undergoing surgery, rely on estimated distance and angle during operation technique fully, error is restive, and the patent documentation that a lot of pedicle screw guiders for this reason occurred is open.As the patent No. is Chinese utility model patent " a kind of pedicle nail fixing operation auxiliary device " (Granted publication number: CN2311241Y) of ZL97244886.1, auxiliary device volume in this patent is bigger, range of accommodation is single, can only be in planar range adjusting angle, similarly can also be with reference to ZL99242078.4 and ZL03237809.2, and for example patent is ZL00207909.7 and ZL02239030.8, this class is put the nail guider and is had following deficiency: be applicable to way of escape pedicle screw fixation, be not suitable for the lower cervical anterior pedicle screw fixation; Volume is big, and is heavy, and range of application is narrower, and cost is higher.Obviously different because of the lower cervical anterior pedicle screw again with other pedicle screws, its particularity is arranged, and also do not have special guider in the prior art at this technical operation.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of simple in structure at the above-mentioned state of the art, and the lower cervical anterior pedicle screw that range of accommodation is bigger is inserted guider.
Another technical problem to be solved in the utility model provides a kind of lower cervical anterior pedicle screw with low cost, easy and simple to handle and inserts guider.
This utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of lower cervical anterior pedicle screw is inserted guider, it is characterized in that comprising
Locating rack comprises two locating rods and the first radian chi between locating rod, and this first radian chi has scale along the radian bearing mark;
The second radian chi has scale along the radian bearing mark, and the top is connected with the aforesaid first radian chi and intersects with the first radian chi and can move along the circular arc direction of the first radian chi and locate; And
Sighting bar, the upper end is connected with the aforesaid second radian chi and can moves along the circular arc direction of the second radian chi and locate.
The syndeton of the second radian chi and the first radian chi is preferably as follows design: the described second radian chi top has a junction, and accordingly, the described first radian chi has first pilot hole for aforementioned connecting portion slippage along the radian direction.
Further, described connecting portion is one to have externally threaded bolt, and first knob with female thread cooperates dismountable type to be located on the described first radian chi with aforementioned bolt.
The syndeton of the sighting bar and the second radian chi is preferably as follows design: the upper end of described sighting bar has a connecting rod, and accordingly, the described second radian chi has second pilot hole for aforementioned connecting rod slippage along the radian direction.
Further, described connecting rod is one to have external screw thread second screw rod, and second knob with female thread cooperates dismountable type to be located on the described second radian chi with aforementioned connecting rod.
Compared with prior art, advantage of the present utility model is: be mutually first radian chi of certain angle and the position that the second radian chi is determined sighting bar by regulating two, simple in structure, with low cost, easy to operate, accurate location can be provided for the implantation of lower cervical anterior pedicle screw, improved the safety that the lower cervical anterior pedicle screw is implanted, simplify its operation, provide safety guarantee, be convenient to promote for popularizing the application clinically of lower cervical anterior pedicle screw.
Description of drawings
Fig. 1 is the example structure sketch map.
Fig. 2 is the embodiment exploded.
The specific embodiment
Embodiment describes in further detail this utility model below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the lower cervical anterior pedicle screw in the present embodiment is inserted guider and is comprised locating rack 10, the second radian chi 3 and sighting bar 6.
Locating rack 10 comprises two locating rods 1 and the first radian chi 2 between locating rod 1, this first radian chi 2 has scale along the radian bearing mark, the second radian chi 3 has scale along the radian bearing mark, the top is connected with the first radian chi 2 and intersects with the first radian chi 2 and can move along the circular arc direction of the first radian chi 2 and locate, and sighting bar 6 upper ends are connected with the second radian chi 3 and can move along the circular arc direction of the second radian chi 3 and locate.
The second radian chi, 3 tops have a junction 51, and accordingly, the first radian chi 2 has first pilot hole 21 for connecting portion 51 slippages along the radian direction.Connecting portion 51 is one to have externally threaded first screw rod, and first knob 41 with female thread cooperates dismountable type to be located on the first radian chi 2 with bolt.
The upper end of sighting bar 3 has a connecting rod 52, and accordingly, the second radian chi 3 has second pilot hole 31 for connecting rod 52 slippages along the radian direction.Connecting rod 52 is one to have external screw thread second screw rod, and second knob 42 with female thread cooperates dismountable type to be located on the second radian chi 3 with connecting rod 52.
Put in the nail at the lower cervical anterior pedicle screw, the location anterior midline is determined entry point, determines that according to the pedicle of vertebral arch longitudinal axis direction of lower cervical anterior pedicle screw on transverse section and sagittal plane is the basis of accurately putting nail.After locating rod 1 in the present embodiment is determined the preceding center of vertebral body, utilize sighting bar 6 to determine entry points.Regulate up and down, guarantee that needle angle is consistent with lower cervical anterior pedicle of vertebral arch anatomical passageway.
Concrete work process is as follows: according to patient CT radiographic measurement data, regulate the second radian chi 3 earlier, make itself and transverse section CT radiographic measurement data consistent, regulate the angle on the first radian chi 2 then, make it also meet CT measurement numerical value on sagittal plane, this present embodiment can be placed patient's cervical operation place like this, and guarantee that according to perspective in the art locating rod is positioned at vertebral body front center, this advances the drill bit guide pipe that the front portion of the outside of use in the operation can be passed sighting bar, the boring that undergos surgery exactly guarantees accurately to insert the lower cervical anterior pedicle screw.
Claims (5)
1. a lower cervical anterior pedicle screw is inserted guider, it is characterized in that comprising
Locating rack comprises two locating rods and the first radian chi between locating rod, and this first radian chi has scale along the radian bearing mark;
The second radian chi has scale along the radian bearing mark, and the top is connected with the aforesaid first radian chi and intersects with the first radian chi and can move along the circular arc direction of the first radian chi and locate; And
Sighting bar, the upper end is connected with the aforesaid second radian chi and can moves along the circular arc direction of the second radian chi and locate.
2. lower cervical anterior pedicle screw according to claim 1 is inserted guider, it is characterized in that the described second radian chi top has a junction, accordingly, the described first radian chi has first pilot hole for aforementioned connecting portion slippage along the radian direction.
3. lower cervical anterior pedicle screw according to claim 2 is inserted guider, it is characterized in that described connecting portion is one to have externally threaded bolt, first knob with female thread cooperates dismountable type to be located on the described first radian chi with aforementioned bolt.
4. insert guider according to the described lower cervical anterior pedicle screw of arbitrary claim in the claim 1～3, the upper end that it is characterized in that described sighting bar has a connecting rod, accordingly, the described second radian chi has second pilot hole for aforementioned connecting rod slippage along the radian direction.
5. lower cervical anterior pedicle screw according to claim 4 is inserted guider, it is characterized in that described connecting rod is one to have external screw thread second screw rod, second knob with female thread cooperates dismountable type to be located on the described second radian chi with aforementioned connecting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201212688U CN201624768U (en) | 2010-03-01 | 2010-03-01 | Guider for lower cervical vertebra anterior vertebral pedicle screw implantation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201212688U CN201624768U (en) | 2010-03-01 | 2010-03-01 | Guider for lower cervical vertebra anterior vertebral pedicle screw implantation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201624768U true CN201624768U (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201212688U Expired - Fee Related CN201624768U (en) | 2010-03-01 | 2010-03-01 | Guider for lower cervical vertebra anterior vertebral pedicle screw implantation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201624768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101999930A (en) * | 2010-12-03 | 2011-04-06 | 南京医科大学附属南京第一医院 | Positioning guider for embedding pedicle screw of lower cervical spine |
| CN103263289A (en) * | 2013-05-28 | 2013-08-28 | 河北医科大学第三医院 | Screw-implanting sighting device used for minimally invasive surgery |
-
2010
- 2010-03-01 CN CN2010201212688U patent/CN201624768U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101999930A (en) * | 2010-12-03 | 2011-04-06 | 南京医科大学附属南京第一医院 | Positioning guider for embedding pedicle screw of lower cervical spine |
| CN103263289A (en) * | 2013-05-28 | 2013-08-28 | 河北医科大学第三医院 | Screw-implanting sighting device used for minimally invasive surgery |
| CN103263289B (en) * | 2013-05-28 | 2015-03-25 | 河北医科大学第三医院 | Screw-implanting sighting device used for minimally invasive surgery |
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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: 20101110 Termination date: 20160301 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |