CN203042421U - Pedicle screw drilling device - Google Patents
Pedicle screw drilling device Download PDFInfo
- Publication number
- CN203042421U CN203042421U CN 201320048397 CN201320048397U CN203042421U CN 203042421 U CN203042421 U CN 203042421U CN 201320048397 CN201320048397 CN 201320048397 CN 201320048397 U CN201320048397 U CN 201320048397U CN 203042421 U CN203042421 U CN 203042421U
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- CN
- China
- Prior art keywords
- pedicle screw
- arc
- drilling device
- motion bar
- groove
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Abstract
The utility model discloses a pedicle screw drilling device which comprises a U-shaped clamping groove. A locating needle is arranged right in the middle of the inner side face of the clamping groove and extends upward to form a supporting rod, and the supporting rod is connected with a movable rod through a concave-convex joint, and therefore the two rods are limited and can only mutually move in a sagittal view. An arc-shaped ruler with calibrations is arranged on the movable rod. Two edges of the arc-shaped ruler are symmetrical with the movable rod as center, and the arc-shaped ruler is parallel to the U-shaped clamping groove in a coronal plane. The pedicle screw drilling device is convenient to use, easy to operate and capable of rapidly and accurately leading a pedicle screw on one side of a pyramid to be implanted, shortens surgery time, and reduces surgical complications.
Description
Technical field
This utility model relates to medical apparatus and instruments, relates in particular to a kind of pedicle screw guider.
Background technology
Technique for fixing extensively applies to the treatment of spinal disease in the pedicle of vertebral arch, and the successful key of performing the operation is to implant accurately pedicle screw.When implanting pedicle screw, usually implant positioning needle in a side pedicle of vertebral arch earlier, by having an X-rayed in the art, position and direction that clear and definite screw is implanted, for opposite side, because pedicle of vertebral arch is with vertebral body sagittal plane center line lateral symmetry, in order to reduce operating time and to reduce and have an X-rayed the unnecessary damage that the patient is caused repeatedly, the many references of patient are direction and the position of pedicle screw side, but this reference is owing to lack tester, many experience and sensations with the patient, lack quantized data, postoperative usually finds that both sides pedicle screw angle is inconsistent, even when big with reference to error, cause pedicle of vertebral arch and nerve root injury, increased operation risk.
Summary of the invention
The purpose of this utility model provides a kind of pedicle screw guider, is used for the implantation of auxiliary internal fixation of spine art pedicle screw.
This utility model is that the technical scheme that the above-mentioned deficiency of solution is taked is: it comprises " U " shape draw-in groove, draw-in groove medial surface center is provided with a positioning needle, it is a support bar that positioning needle extends upward, and is connected with a motion bar on the support bar, and motion bar is provided with an arc chi.
As further improvement of the utility model, " U " shape draw-in groove has certain elasticity, cooperate can be firm after the positioning needle be attached on the spinous process.
As further improvement of the utility model, support bar is connected by " concavo-convex " joint with motion bar, and having limited only can be movable mutually in sagittal plain between two bars.
As further improvement of the utility model, the arc chi centered by motion bar, the both sides symmetry, it is provided with scale.
This utility model is simple in structure, and is easy to use, and its principle is: in the anatomical structure of normal vertebral body, vertebral body is with sagittal plane center line lateral symmetry, and spinous process is positioned on the posterior midline; Need before the art to get rid of the patient who obviously dissects structure variation by imaging data, during use, after treating that side pedicle screw implantation is errorless, keep the screw implanting instrument, " U " shape draw-in groove is stuck in the spinous process two sides, suitably adjust, make the pedicle screw guider consistent at the sagittal plane keeping parallelism with spinous process, positioning needle is inserted spinous process with fixing, mobile motion bar is against accurately on the pedicle screw side instrument arc chi, when the opposite side pedicle screw is implanted, get final product accurately reference correctly sagittal plain and the crown parallactic angle degree of pedicle screw side, guarantee the three-dimensional perspective unanimity that the both sides pedicle screw is implanted.Use this pedicle screw guider, guide the implantation of a side pedicle screw fast and accurately, reduced operating time, reduced postoperative complication.
Description of drawings
Fig. 1 is side view of the present utility model.
Fig. 2 is front elevation of the present utility model.
Each position label among the above figure: 1: " U " shape draw-in groove; 2: support bar; 3: motion bar; 4: positioning needle; 5: the arc chi; 6: scale; 7: " concavo-convex " joint.
The specific embodiment
In order to understand technique scheme of the present invention better, below by the specific embodiment, and by reference to the accompanying drawings, this utility model is described in further detail.
Extremely shown in Figure 2 as Fig. 1, pedicle screw guider of the present utility model comprises " U " shape draw-in groove 1, draw-in groove 1 medial surface center is provided with a positioning needle 4, it is a support bar 2 that positioning needle 4 extends upward, be connected with a motion bar 3 on the support bar 2, described support bar 2 is connected by " concavo-convex " joint 7 with motion bar 3, having limited only can be movable mutually at sagittal plane between two bars, motion bar 3 is provided with an arc chi 5, arc chi 5 is centered by motion bar 3, the both sides symmetry, it is provided with scale 6, and described arc chi 5 is parallel at coronalplane with " U " shape draw-in groove 1.
During use, after treating that side pedicle screw implantation is errorless, keep the screw implanting instrument, " U " shape draw-in groove 1 is stuck in the spinous process two sides, suitably adjust, make the pedicle screw guider consistent at the sagittal plane keeping parallelism with spinous process, positioning needle 4 is inserted spinous process with fixing, mobile motion bar 3, arc chi 5 is against accurately on the pedicle screw side instrument, when the opposite side pedicle screw is implanted, get final product accurately reference correctly sagittal plain and the crown position implant angle of pedicle screw side, guarantee the three-dimensional perspective unanimity that the both sides pedicle screw is implanted.
Use this pedicle screw guider, can guide the implantation of a side pedicle screw fast and accurately, guarantee both sides pedicle screw three-dimensional perspective unanimity, reduced operating time, reduced postoperative complication.
This utility model does not describe part in detail, is those skilled in the art's known technology.
Be enlightenment with above-mentioned foundation desirable embodiment of the present utility model, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the description, must determine its technical scope according to the claim scope.
Claims (3)
1. pedicle screw guider, it comprises " U " shape draw-in groove, draw-in groove medial surface center is provided with a positioning needle, and to extend upward be a support bar, described support bar is connected with a motion bar by " concavo-convex " joint, only can be movable mutually in sagittal plain between two bars, it is characterized in that: motion bar is provided with the arc chi of a band scale.
2. pedicle screw guider according to claim 1, it is characterized in that: " U " shape draw-in groove has certain elasticity, cooperate can be firm after the positioning needle be attached on the spinous process.
3. pedicle screw guider according to claim 1 is characterized in that: the arc chi centered by motion bar, the both sides symmetry, it is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048397 CN203042421U (en) | 2013-01-30 | 2013-01-30 | Pedicle screw drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048397 CN203042421U (en) | 2013-01-30 | 2013-01-30 | Pedicle screw drilling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203042421U true CN203042421U (en) | 2013-07-10 |
Family
ID=48725429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320048397 Expired - Fee Related CN203042421U (en) | 2013-01-30 | 2013-01-30 | Pedicle screw drilling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203042421U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490464A (en) * | 2014-12-15 | 2015-04-08 | 赵继军 | Pedicle guider for open surgery |
| CN110478020A (en) * | 2019-09-09 | 2019-11-22 | 南京医科大学第二附属医院 | A kind of Via Posterior Spinal Approach sets spike devices and method |
-
2013
- 2013-01-30 CN CN 201320048397 patent/CN203042421U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104490464A (en) * | 2014-12-15 | 2015-04-08 | 赵继军 | Pedicle guider for open surgery |
| CN110478020A (en) * | 2019-09-09 | 2019-11-22 | 南京医科大学第二附属医院 | A kind of Via Posterior Spinal Approach sets spike devices and method |
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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: 20130710 Termination date: 20140130 |