CN201719362U - Anterior cervical spine reverse pedicle screw plate fixing device - Google Patents
Anterior cervical spine reverse pedicle screw plate fixing device Download PDFInfo
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- CN201719362U CN201719362U CN2010202646468U CN201020264646U CN201719362U CN 201719362 U CN201719362 U CN 201719362U CN 2010202646468 U CN2010202646468 U CN 2010202646468U CN 201020264646 U CN201020264646 U CN 201020264646U CN 201719362 U CN201719362 U CN 201719362U
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Abstract
本实用新型公开了一种颈椎前路钉板固定装置，属于外科器械中的脊柱定位器或稳定器技术领域。本实用新型包括有固定板和接骨螺钉，固定板上有两排钉孔，所述的接骨螺钉装配在钉孔内，钉孔的中轴线与固定板的纵向中垂面之间有向外倾斜的夹角α，纵向中垂面两边的钉孔倾斜角α的倾斜方向对称、相反；所述的接骨螺钉的长度应当保证在使用状态，螺钉端部能进入椎弓根内部。本实用新型的有益效果是：改变固定板钉孔的角度，使得接骨螺钉可以直接打入椎弓根内部，使内固定更加牢固可靠；充分利用了颈椎椎弓根内固定在三柱稳定上的优越性，通过一次前路手术，就可达到内固定的目标，减少手术创伤、感染、治疗费用及术后颈后疼痛的风险。
The utility model discloses an anterior cervical nail plate fixation device, which belongs to the technical field of spine positioners or stabilizers in surgical instruments. The utility model includes a fixing plate and a bone screw. There are two rows of nail holes on the fixing plate. The bone screw is assembled in the nail hole. There is an outward inclination between the central axis of the nail hole and the longitudinal vertical surface of the fixing plate. The included angle α, the inclination direction of the inclination angle α of the nail holes on both sides of the longitudinal mid-vertical plane are symmetrical and opposite; the length of the bone screw should ensure that the end of the screw can enter the interior of the pedicle when it is in use. The beneficial effects of the utility model are: changing the angle of the nail hole of the fixing plate, so that the bone screw can be directly driven into the inside of the pedicle, so that the internal fixation is more firm and reliable; the internal fixation of the cervical pedicle on the three-column stability is fully utilized. Superiority, through an anterior operation, the goal of internal fixation can be achieved, reducing the risk of surgical trauma, infection, treatment costs and postoperative neck pain.
Description
Technical field
This utility model relates to a kind of anterior cervical vertebrae nail-plate fixture, belongs to spinal column localizer or regulator technical field in the surgical instruments.
Background technology
Cases such as throat road internal fixation technology is primarily aimed at that the cervical vertebra postoperative is overhauled, osteoporosis and cervical vertebra tumor, existing nail-plate fixture, its nail hole mainly be vertical or the nail hole inside, it is vertical with steel plate or the end angle is inside to cause bone screw to squeeze into direction in the cervical vertebral body, make simple preceding road internal fixation operation on biomechanics, often can not reach needed effect, especially osteoporotic case has increased the danger of moving back nail.Need to increase neck way of escape internal fixation to improve success rate of operation for this reason, though the biomechanical stability of way of escape pedicle of cervical vertebra internal fixation is better than way of escape lateral mass nail internal fixation and preceding road vertebral body internal fixation, anterior approach associating way of escape fixation has increased operation wound, infection and medical expense undoubtedly.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, this utility model provides a kind of anterior cervical vertebrae reverse pedicle nail board fixer.
This utility model is achieved by the following technical solution: the reverse pedicle nail board fixer of a kind of anterior cervical vertebrae, it includes fixing head and bone screw, two row's multirow nail holes are arranged on the described fixing head, described bone screw is assemblied in the nail hole, between the axis in described nail hole and the vertical middle vertical plane of fixing head outward-dipping angle α is arranged, vertically the incline direction symmetry of the nail hole inclined angle alpha on middle vertical plane both sides, opposite.The length of described bone screw should guarantee that in user mode, screw end can enter pedicle of vertebral arch inside.
Between the axis in described nail hole and the horizontal middle vertical plane of fixing head acclivitous angle β is arranged, the incline direction of each nail hole angle of inclination beta is identical.
The angular range of the inclined angle alpha in described nail hole is: 25 °～50 °.
The angular range of the angle of inclination beta in described nail hole is: 0 °～22 °.
The angular range of inclined angle alpha and β is by pedicle for cervical vertebra arch axis and the decision of vertebral body antetheca angulation, 25 °～50 ° of promptly outer scopes partially, 0 °～22 ° of updip scopes.
After the degree of depth in described nail hole can guarantee that bone screw is packed into fully, the nail tail did not exceed the outer surface of fixing head, with soft tissues such as the esophaguses of avoiding rubbing.
The length of described bone screw is 18mm～32mm.
The beneficial effects of the utility model are: change the angle in fixing head nail hole, make bone screw can directly squeeze into pedicle of vertebral arch inside, the hold of utilizing the pedicle of vertebral arch tubular bone makes internal fixation more solid and reliable than the stronger characteristic of vertebral body part spongy bone; When satisfying the anterior cervical decompression fusion, made full use of the superiority of pedicle for cervical vertebra arch internal fixation on three posts are stable, be designed to operations such as serious osteoporosis, anterior cervical vertebrae are overhauled, multi-segmental vertebral resection, only by an anterior approach, just can reach decompression and merge the target of internal fixation, the risk of pain behind minimizing operation wound, infection, medical expense and the postoperative neck.
Description of drawings
With embodiment this utility model is further specified with reference to the accompanying drawings below.
Fig. 1 is this utility model structural representation;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the upward view of Fig. 1;
Fig. 4 is this utility model user mode reference diagram.
Among the figure, 1, fixing head, 2, bone screw, 3, the nail hole, 4, pedicle of vertebral arch.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, the reverse pedicle nail board fixer of a kind of anterior cervical vertebrae shown in Figure 4, it includes fixing head 1 and bone screw 2, four nails of two rows, two row hole 3 is arranged on the described fixing head, described bone screw 2 is assemblied in the nail hole 3, between the axis in described nail hole 3 and the vertical middle vertical plane of fixing head 1 outward-dipping angle α is arranged, vertically the incline direction symmetry of the nail hole inclined angle alpha on middle vertical plane both sides, opposite; The length of described bone screw 2 should guarantee that in user mode screw end can enter pedicle of vertebral arch 4 inside.
Between the axis in described nail hole 3 and the horizontal middle vertical plane of fixing head 1 acclivitous angle β is arranged, the incline direction of each nail hole angle of inclination beta is identical.
The angle of the inclined angle alpha in described nail hole 3 is 25 °～50 °.
The angle of the angle of inclination beta in described nail hole 3 is 0 °～22 °.
After the degree of depth in described nail hole 3 can guarantee that bone screw 2 is packed into fully, the nail tail did not exceed the outer surface of fixing head 1.
The length of described bone screw 2 is 18mm～32mm.
The another kind of embodiment of this utility model is: the reverse pedicle nail board fixer of a kind of anterior cervical vertebrae, it includes fixing head 1 and bone screw 2, described fixing head 1 is the titanium plate, six nails of two row's triplex rows hole 3 is arranged on the titanium plate, described bone screw 2 is assemblied in the nail hole 3, between the axis in described nail hole 3 and the vertical middle vertical plane of fixing head 1 outward-dipping angle α is arranged, vertically the incline direction symmetry of the nail hole inclined angle alpha on middle vertical plane both sides, opposite.The length of described bone screw 2 should guarantee that in user mode screw end can enter pedicle of vertebral arch 4 inside.
Between the axis in described nail hole 3 and the horizontal middle vertical plane of fixing head 1 acclivitous angle β is arranged, the incline direction of each nail hole angle of inclination beta is identical.
The angle of the inclined angle alpha in described nail hole 3 is 27 °～34 °.
The angle of the angle of inclination beta in described nail hole 3 is 12 °～21 °.
After the degree of depth in described nail hole 3 can guarantee that bone screw 2 is packed into fully, the nail tail did not exceed the outer surface of fixing head 1.
The length of described bone screw is 20mm～30mm.
During use, use conventional throat road operative incision, expose vertebral body, finish depressurization steps after, determine entry point and angle according to three-dimensional reconstruction result before the art, under C arm fluoroscopic machine or navigator guiding, punch to the pedicle of vertebral arch direction by front side cortex; Select fixedly titanium plate 1 subsides of suitable model to lie prostrate then in vertebral body the place ahead, in nail hole 3, be screwed into bone screw 2 successively, make bone screw enter pedicle of vertebral arch inside, realize the interlock tubular bone, obtain a stronger hold, finish preceding road reverse homonymy pedicle of vertebral arch internal fixation.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202646468U CN201719362U (en) | 2010-07-14 | 2010-07-14 | Anterior cervical spine reverse pedicle screw plate fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202646468U CN201719362U (en) | 2010-07-14 | 2010-07-14 | Anterior cervical spine reverse pedicle screw plate fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201719362U true CN201719362U (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202646468U Expired - Fee Related CN201719362U (en) | 2010-07-14 | 2010-07-14 | Anterior cervical spine reverse pedicle screw plate fixing device |
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| CN (1) | CN201719362U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362815A (en) * | 2011-11-12 | 2012-02-29 | 赵刘军 | Lower cervical spine anterior pedicle screw matching, fixing and retaining device |
| CN104921794A (en) * | 2015-07-13 | 2015-09-23 | 赵刘军 | Lower cervical spine anterior pedicle screw matching fixing device |
| CN105232133A (en) * | 2015-09-07 | 2016-01-13 | 徐兆万 | Anterior cervical pedicle screw plate fixing system |
| CN106236333A (en) * | 2016-10-01 | 2016-12-21 | 董谢平 | The artificial vertebral body of a kind of road nail pedicle fix in the past and location and installation instrument |
| CN109907812A (en) * | 2019-04-22 | 2019-06-21 | 赵刘军 | A 3D printed anterior cervical pedicle screw guide template |
| US10561455B2 (en) | 2015-08-21 | 2020-02-18 | Paragon Spine, Inc. | Pedicle screw placement system and method for spinal surgery |
| US10603091B2 (en) | 2014-02-24 | 2020-03-31 | Curtin University Of Technology | Fastener |
| US10729480B2 (en) | 2016-03-18 | 2020-08-04 | Curtin University | Expandable fastener for orthopaedic applications |
-
2010
- 2010-07-14 CN CN2010202646468U patent/CN201719362U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102362815A (en) * | 2011-11-12 | 2012-02-29 | 赵刘军 | Lower cervical spine anterior pedicle screw matching, fixing and retaining device |
| CN102362815B (en) * | 2011-11-12 | 2012-12-12 | 赵刘军 | Lower cervical spine anterior pedicle screw matching, fixing and retaining device |
| US10603091B2 (en) | 2014-02-24 | 2020-03-31 | Curtin University Of Technology | Fastener |
| CN104921794A (en) * | 2015-07-13 | 2015-09-23 | 赵刘军 | Lower cervical spine anterior pedicle screw matching fixing device |
| US10561455B2 (en) | 2015-08-21 | 2020-02-18 | Paragon Spine, Inc. | Pedicle screw placement system and method for spinal surgery |
| CN105232133A (en) * | 2015-09-07 | 2016-01-13 | 徐兆万 | Anterior cervical pedicle screw plate fixing system |
| US10729480B2 (en) | 2016-03-18 | 2020-08-04 | Curtin University | Expandable fastener for orthopaedic applications |
| CN106236333A (en) * | 2016-10-01 | 2016-12-21 | 董谢平 | The artificial vertebral body of a kind of road nail pedicle fix in the past and location and installation instrument |
| CN109907812A (en) * | 2019-04-22 | 2019-06-21 | 赵刘军 | A 3D printed anterior cervical pedicle screw guide template |
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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: 20110126 Termination date: 20130714 |