CN205339029U - Vertebral plate drag hook - Google Patents
Vertebral plate drag hook Download PDFInfo
- Publication number
- CN205339029U CN205339029U CN201620067271.3U CN201620067271U CN205339029U CN 205339029 U CN205339029 U CN 205339029U CN 201620067271 U CN201620067271 U CN 201620067271U CN 205339029 U CN205339029 U CN 205339029U
- Authority
- CN
- China
- Prior art keywords
- hook
- groove
- drag hook
- laminectomy retractor
- utility
- 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 relates to a vertebral plate drag hook, include: catching hold of the body body with a hook, just should catching hold of the body body with a hook and be equipped with the recess that is used for centrum screw guide location, this recess is carving the shape groove, and the upper end groove width that just should carve the groove that appears is greater than the lower extreme groove width, is radially promptly, the utility model discloses a vertebral plate drag hook, it realizes centrum screw guide location through carving the shape groove fast, avoids planting the nail position and the deviation appears, this vertebral plate drag hook still has advantages such as simple structure, convenient operation, is suitable for clinical popularization.
Description
Technical field
This utility model relates to medical instruments field, particularly relates to a kind of laminectomy retractor.
Background technology
Spinal vertebral fracture is the commonly encountered diseases of spinal surgery, has a strong impact on the normal operation of patient, living and studying, often leaves over serious complication as dealt with improperly, causes no small misery to patient.
At present, the surgical operation therapy of spine disorders is fixed as clinical more employing with the nail-stick system of Via Posterior Spinal Approach, needs to be screwed in vertebral body by pedicle screw accurately in operation.Because on rear side of vertebral body, soft tissue enriches, and along with people's pursuit to less invasive techniques, it is desirable to otch is more and more less, thus needs to retract soft tissue in the process be screwed into pedicle screw, in order to expose tissue.Otherwise otch soft tissue can cause serious strand frustrate infringement because exposing the unclear location misalignment causing pedicle screw, produce the postoperative failed syndrome of spinal column.
At present clinical adopt laminectomy retractor to realize soft tissue to retract, implant vertebral body screw, but owing to traditional laminectomy retractor is merely responsible for retracting soft tissue, it is impossible to vertebral body screw is guided location, therefore, causes and plant nail position and easily cause deviation.
Utility model content
The purpose of this utility model is to provide a kind of laminectomy retractor, it is possible to make vertebral body screw implant nail position fast and accurately easily.
In order to solve above-mentioned technical problem, this utility model provides a kind of laminectomy retractor, including: hook body body, and this hook body body is provided with for the oblique groove guiding location of vertebral body screw, this groove is a wedge groove, and the upper end slot of this wedge groove is wider than lower end groove width, namely in upwards radial.
Further, described upper end groove width is 2cm-3cm, and lower end groove width is 1.5cm-1.8cm.
Further, the bottom of described hook body body, and the both sides being positioned at groove are provided with flap.
Further, the lower section of described hook body body, namely the end of groove is provided with drag hook.
Further, described drag hook is the arc-shaped draw hook tilted forward.
Further, described drag hook is dichotomous drag hook, and the bifurcation of bifurcated is positioned on the centrage of groove.
Further, described hook body body is also connected with proficiency shank, and the rear end of this handle portion is also associated with non-slip hook pull bar.
Further, described wedge groove is 70 °-75 ° with the angle of the end place horizontal plane of hook body body.
The beneficial effects of the utility model are, laminectomy retractor of the present utility model, and it quickly realizes vertebral body screw by wedge groove and guides location, it is to avoid planting nail position and deviation occur, this laminectomy retractor also has simple in construction, the advantage such as easy to operate, is suitable to clinical expansion.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Fig. 1 is the structural representation figure mono-of laminectomy retractor of the present utility model；
Fig. 2 is the structural representation two of laminectomy retractor of the present utility model；
Fig. 3 is the structural representation of another kind of laminectomy retractor of the present utility model.
In figure: hook body body 1, flap 101, arc-shaped draw hook 102, dichotomous drag hook 103, wedge groove 2, handle portion 3, non-slip hook pull bar 4.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the composition relevant with this utility model.
As depicted in figs. 1 and 2, a kind of laminectomy retractor of the present utility model, including: hook body body 1, and this hook body body is provided with for the oblique groove guiding location of vertebral body screw, this groove is a wedge groove, and the upper end slot of this wedge groove is wider than lower end groove width, namely in upwards radial.
The degree of depth of the upper end slot of described groove is more than the degree of depth of lower end slot.
When operation, vertebral body screw relies in wedge groove, squeezes into vertebral body screw to planting nail position；This laminectomy retractor by upper width, under narrow notch design, it is possible to when ensureing operation, vertebral body screw has enough working places, and can accurately guide, position.
Optionally, described upper end groove width is 2cm-3cm, and lower end groove width is 1.5cm-1.8cm.Wherein, upper end groove width is preferably 2cm, and lower end groove width is 1.5cm.
The bottom of described hook body body 1, and the both sides being positioned at groove are provided with flap 101, can protect tissue by flap 101, it is to avoid when planting nail, tissue is damaged.
The lower section of described hook body body 1, namely the end of groove is provided with drag hook 102, it is preferred that described drag hook 102 is the arc-shaped draw hook tilted forward, can quickly be retracted by soft tissue by this arc-shaped draw hook, reaches to reduce the purpose of surgical injury.
As it is shown on figure 3, described drag hook is dichotomous drag hook 103, and the bifurcation of bifurcated is positioned on the centrage of groove, vertebral plate is withstood forward after being easy to block transverse process by described dichotomous drag hook 103, utilizing lever principle to draw card muscular tissue, this is designed to effective dragline and exposes visual area, conveniently plants nail location.
Further, for the ease of bulging, described hook body body 1 is also connected with proficiency shank 3, and the rear end of this handle portion 3 is also associated with non-slip hook pull bar 4.
Further, for the ease of carrying out planting nail operation in operation, the angle α of the end place horizontal plane of described wedge groove and hook body body is 70 °-75 °.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (8)
1. a laminectomy retractor, it is characterised in that including: hook body body, and this hook body body is provided with for the oblique groove guiding location of vertebral body screw, this groove is a wedge groove, and the upper end slot of this wedge groove is wider than lower end groove width, namely in upwards radial.
2. laminectomy retractor as claimed in claim 1, it is characterised in that described upper end groove width is 2cm-3cm, and lower end groove width is 1.5cm-1.8cm.
3. laminectomy retractor as claimed in claim 2, it is characterised in that the bottom of described hook body body, and the both sides being positioned at groove are provided with flap.
4. laminectomy retractor as claimed in claim 3, it is characterised in that the lower section of described hook body body, namely the end of groove is provided with drag hook.
5. laminectomy retractor as claimed in claim 4, it is characterised in that described drag hook is the arc-shaped draw hook tilted forward.
6. the laminectomy retractor as described in claim 4 or 5, it is characterised in that described drag hook is dichotomous drag hook, and the bifurcation of bifurcated is positioned on the centrage of groove.
7. laminectomy retractor as claimed in claim 6, it is characterised in that described hook body body is also connected with proficiency shank, and the rear end of this handle portion is also associated with non-slip hook pull bar.
8. laminectomy retractor as claimed in claim 7, it is characterised in that the angle of the end place horizontal plane of described wedge groove and hook body body is 70 °-75 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620067271.3U CN205339029U (en) | 2016-01-22 | 2016-01-22 | Vertebral plate drag hook |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620067271.3U CN205339029U (en) | 2016-01-22 | 2016-01-22 | Vertebral plate drag hook |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205339029U true CN205339029U (en) | 2016-06-29 |
Family
ID=56181960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620067271.3U Expired - Fee Related CN205339029U (en) | 2016-01-22 | 2016-01-22 | Vertebral plate drag hook |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205339029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106308858A (en) * | 2016-08-12 | 2017-01-11 | 李沫 | Novel anterior cervical operation pull hook |
| CN108451565A (en) * | 2018-04-12 | 2018-08-28 | 江苏省人民医院（南京医科大学第附属医院） | Inner side drag hook for cervical vertebra operation |
-
2016
- 2016-01-22 CN CN201620067271.3U patent/CN205339029U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106308858A (en) * | 2016-08-12 | 2017-01-11 | 李沫 | Novel anterior cervical operation pull hook |
| CN108451565A (en) * | 2018-04-12 | 2018-08-28 | 江苏省人民医院（南京医科大学第附属医院） | Inner side drag hook for cervical vertebra operation |
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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: 20160629 Termination date: 20170122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |