CN208573808U - A kind of titanium plate for laminoplasty - Google Patents
A kind of titanium plate for laminoplasty Download PDFInfo
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- CN208573808U CN208573808U CN201820099186.4U CN201820099186U CN208573808U CN 208573808 U CN208573808 U CN 208573808U CN 201820099186 U CN201820099186 U CN 201820099186U CN 208573808 U CN208573808 U CN 208573808U
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- titanium plate
- lateral mass
- plate
- titanium
- laminoplasty
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Abstract
The utility model relates to a kind of titanium plates for laminoplasty, including titanium plate ontology, which is fixed on the vertebral plate notch broken ends of fractured bone, and titanium plate ontology one end is clamping end, there is upper interlaminar clamp and lower interlaminar clamp, the two to be held on the vertebral plate notch broken ends of fractured bone therebetween for clamping end；The titanium plate lateral mass of the other end of titanium plate ontology is fastened on cervical lateral mass；Screw hole location on the titanium plate lateral mass is distributed along the diagonal line of cervical lateral mass anatomical features, and the upper interlaminar clamp of clamping end and lower interlaminar clamp are at angle of dehiscing；Titanium plate lateral mass proximal end is equipped with block, forms clamping structure.The utility model reduces the risk that lateral mass screw is loosened, fallen off, and improves the fixed stability of titanium plate.
Description
Technical field
The utility model belongs to the field of medical instrument technology, and in particular to a kind of titanium plate for laminoplasty.
Background technique
In the process that modern economy rapidly develops, the disease incidence of cervical spondylosis is very high, when cervical vertebra is damaged, may cause neck
Spinal cord in vertebra is damaged, and cervical vertebra nerve may be oppressed after injured spinal cords, causes the symptoms such as patient's discomfort, pain.It is clinical
It when operative treatment, usually carries out cutting skin and deep tissues, appears spinous process, bilateral lamina, articular process lateral mass, vertebrae plate resection,
Notch is closed in fixed fusion after excision, and at present in technology, vertebrae plate resection specifically includes that laminectomy, expands vertebral plate
Excision, unilateral laminectomy.The above two mode belongs to excision vertebral plate, higher to the extent of the destruction of cervical posterior column stability,
The latter cuts unilateral vertebral plate and simultaneously struts vertebral plate and lateral mass, can expand canalis spinalis and solve the problems, such as spinal compression, while after retaining cervical vertebra
The most stability of column, it is weaker to the extent of the destruction of cervical posterior column stability.
Due to playing fixed fusion mainly by screw and titanium plate after vertebrae plate resection, so effective implantation depth of screw
It directly ensure that the syncretizing effect of operation with the fixed structure of titanium plate.The implantation of titanium plate lateral mass is found during clinical application follow-up
Screw be easy to happen loosening, falling off causes to perform the operation fixed Fusion failure；Titanium plate is inadequate to the support of vertebral plate and maintenance stability,
Lead to the postoperative normal function for being unable to maintain that the segment body of cervical vertebra.In view of these situations, one kind of this patent is used for laminoplasty
The risk that lateral mass screw is loosened, fallen off can be effectively reduced in the titanium plate of art, improve the fixed stability of titanium plate.
Summary of the invention
The purpose of this utility model is to provide a kind of titanium plates for laminoplasty, loosened with reducing lateral mass screw,
The risk to fall off improves the fixed stability of titanium plate.
To achieve the above object, a kind of technical solution that the utility model specifically provides are as follows: titanium for laminoplasty
The vertebral plate notch broken ends of fractured bone is fixed in plate, including titanium plate ontology, the titanium plate ontology one end, and titanium plate ontology one end is clamping end, clamping end
With upper interlaminar clamp and lower interlaminar clamp, screw hole location is provided in upper interlaminar clamp, the vertebral plate notch broken ends of fractured bone is held on the two by the two
Between；The titanium plate lateral mass of the other end of titanium plate ontology is fastened on cervical lateral mass；Screw hole location on the titanium plate lateral mass
Diagonal line along cervical lateral mass anatomical features is distributed, and the upper interlaminar clamp of clamping end and lower interlaminar clamp are at angle of dehiscing；Titanium plate lateral mass
Proximal end is equipped with block, forms clamping structure.
A kind of titanium plate for laminoplasty is further arranged: the screw hole location on titanium plate lateral mass is two same radius
Circular hole, the two screw hole centers of circle horizontal cross distance be less than vertical fore-and-aft distance；
A kind of titanium plate for laminoplasty is further arranged: the length of the upper interlaminar clamp is greater than the length of lower vertebral plate
Degree.
A kind of titanium plate for laminoplasty is further arranged: the block is mutually perpendicular to titanium plate lateral mass.
The principles of the present invention: a kind of titanium plate for laminoplasty of the utility model provides lateral mass screw hole location edge
The diagonal lines of cervical lateral mass anatomical features is distributed, and accords in lateral mass screw method for implantation Mager into nail method, it is ensured that lateral mass screw
Along sagittal plane and coronal-plane on certain inclination angle depth capacity implantation cervical lateral mass, the anti-of lateral mass screw is improved to the full extent
Pull out force and pulling test strength.
The utility model compare the prior art the advantages of: interlaminar clamp and lower interlaminar clamp provide certain on titanium plate clamping end
Angle of dehiscing, it is ensured that chucking power during clamping vertebral plate is gradually increased upper interlaminar clamp with lower interlaminar clamp, to improve vertebral plate
The reliability of the notch broken ends of fractured bone.
In addition, the titanium plate lateral mass proximal end is equipped with block, it is ensured that titanium plate cervical lateral mass in implantation process it is opposite with titanium plate without
Method is moved forward and backward, and improves the connective stability of titanium plate and cervical lateral mass；Therefore, the titanium plate of the structure can be in implantation fixing screws
Play the role of being fixed temporarily to vertebral plate with lower interlaminar clamp by the upper interlaminar clamp at angle of dehiscing before.
During being implanted into fixing screws, the block of titanium plate lateral mass proximal end can play connective stability, prevent cervical vertebra side
Block is moved forward and backward relative to titanium plate；Since the titanium plate lateral mass hole location is diagonally distributed, it is suitable for Mager into nail method, thus really
It protects lateral mass screw depth capacity and is implanted into lateral mass, improve the resisting pull out forces of lateral mass screw.
Detailed description of the invention
Fig. 1 is preoperative body of cervical vertebra structural schematic diagram；Fig. 2 is the three dimensional structure diagram of titanium plate；Fig. 3 be vertebrae plate resection after by
The fixed body of cervical vertebra coronal-plane structural schematic diagram of laminoplasty titanium plate；Fig. 4 be vertebrae plate resection after consolidated by laminoplasty titanium plate
Fixed body of cervical vertebra sagittal plane structural schematic diagram；Fig. 5 is the main view of Fig. 2；Fig. 6 is the top view of Fig. 2.
Specific embodiment
Fig. 2 is a kind of structural schematic diagram of the titanium plate specific embodiment for laminoplasty provided by this patent；
Fig. 3 is the body of cervical vertebra coronal-plane structural schematic diagram fixed by laminoplasty titanium plate after vertebrae plate resection；Fig. 4 be vertebrae plate resection after by
The fixed body of cervical vertebra sagittal plane structural schematic diagram of laminoplasty titanium plate；Fig. 5 is the main view of Fig. 2；Fig. 6 is the top view of Fig. 2；
The titanium plate of the embodiment is used for the fixation of cervical vertebra plate 1, after the completion of 1 resection operation of vertebral plate, appears the vertebral plate 1 of corresponding segment
Notch broken ends of fractured bone 1-1 and cervical lateral mass notch broken ends of fractured bone 1-2,1 notch broken ends of fractured bone 1-1 of vertebral plate strut the dischargeable capacity for expanding canalis spinalis outward,
Fixed cervical vertebra plate 1 and cervical lateral mass 2 are needed, in order to achieve this,
This programme is same as the prior art, and titanium plate one end is clamping end 7, and clamping end 7 has upper interlaminar clamp 4 and lower vertebra
Plate folder 5,1 notch broken ends of fractured bone 1-1 of vertebral plate is held on therebetween by the two, i.e., upper interlaminar clamp 4 and lower interlaminar clamp 5 form vertebral plate 1 and cut
The utensil receiving opening of mouth broken ends of fractured bone 1-1, the other end titanium plate lateral mass 3 of titanium plate are fastened on cervical lateral mass 2.Titanium plate shown in Fig. 3
6 proximal end of other end titanium plate lateral mass is equipped with block 8, forms clamping structure, it is ensured that titanium plate cervical lateral mass 2 in implantation process it is opposite with
Titanium plate can not be moved forward and backward, and improve the connective stability of titanium plate and cervical lateral mass 2.
Unlike the prior art, the lateral mass screw hole location 6 of titanium plate lateral mass 3 provided by the embodiment is along cervical vertebra side
The diagonal line of 2 anatomical features of block is distributed, and the design of diagonal line hole location is suitable for Mager into nail method, guarantees lateral mass screw 9 along sagittal
Face and coronal-plane are implanted on cervical lateral mass 2 at certain inclination angle depth capacity, and common titanium plate lateral mass screw hole location is along level side
To or vertical direction arrangement, be suitable only for Roy-camile into nail method, the screw length being implanted into would generally be than Mager into nail method
A short specification, so the lateral mass screw hole location 6 that the patent provides can improve the effective implantation depth of lateral mass screw 9 to a certain extent,
Reduce the risk that lateral mass screw 9 is loosened, fallen off.
As shown in fig. 6, the pairs of linea angulata of lateral mass screw hole location 6 is arranged, and D1 is less than D2, and D3 is equal to D4.
As shown in figure 5, interlaminar clamp 4 and lower interlaminar clamp 5 are at angle of dehiscing on titanium plate clamping end 7, and L1 is greater than L2.
Unlike the prior art, the clamping end 7 of titanium plate provided by the embodiment is in upper interlaminar clamp 4 and lower vertebral plate
Folder 5 is equipped with certain angle of dehiscing, at the time of surgery, in 1 notch broken ends of fractured bone 1-1 insertion of vertebral plate between interlaminar clamp 4 and lower interlaminar clamp 5
When, clamping force can be increasing, and clamping end 7 is placed in vertebral plate 1 and plays the role of being fixed temporarily, convenient and 1 notch broken ends of fractured bone 1-1 of vertebral plate
The dischargeable capacity for expanding canalis spinalis is strutted outward.
Above-described embodiment is only used for illustrating the inventional idea of this patent, rather than the restriction to this patent rights protection,
All changes for carrying out unsubstantiality to this patent using this design, should all fall into the protection scope of this patent.
Claims (4)
1. a kind of titanium plate for laminoplasty, including titanium plate ontology, which is fixed on the vertebral plate notch broken ends of fractured bone,
Titanium plate ontology one end is clamping end, and there is upper interlaminar clamp and lower interlaminar clamp, the two the vertebral plate notch broken ends of fractured bone is held on two for clamping end
Between person；The titanium plate lateral mass of the other end of titanium plate ontology is fastened on cervical lateral mass；It is characterized by: the titanium plate lateral mass
On screw hole location be distributed along the diagonal line of cervical lateral mass anatomical features, the upper interlaminar clamp of clamping end presss from both sides with lower interlaminar clamp at dehiscing
Angle；Titanium plate lateral mass proximal end is equipped with block, forms clamping structure.
2. a kind of titanium plate for laminoplasty according to claim 1, it is characterised in that: the screw on titanium plate lateral mass
Hole location is the circular hole of two same radius, and the horizontal cross distance in the two screw hole centers of circle is less than vertical fore-and-aft distance.
3. a kind of titanium plate for laminoplasty according to claim 1, it is characterised in that: the length of the upper interlaminar clamp
Degree is greater than the length of lower vertebral plate.
4. a kind of titanium plate for laminoplasty according to claim 1, it is characterised in that: the block and titanium plate side
Block is mutually perpendicular to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820099186.4U CN208573808U (en) | 2018-01-22 | 2018-01-22 | A kind of titanium plate for laminoplasty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820099186.4U CN208573808U (en) | 2018-01-22 | 2018-01-22 | A kind of titanium plate for laminoplasty |
Publications (1)
| Publication Number | Publication Date |
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| CN208573808U true CN208573808U (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820099186.4U Active CN208573808U (en) | 2018-01-22 | 2018-01-22 | A kind of titanium plate for laminoplasty |
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| CN (1) | CN208573808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113741A (en) * | 2018-01-22 | 2018-06-05 | 浙江嘉佑医疗器械有限公司 | A kind of titanium plate for laminoplasty |
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2018
- 2018-01-22 CN CN201820099186.4U patent/CN208573808U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108113741A (en) * | 2018-01-22 | 2018-06-05 | 浙江嘉佑医疗器械有限公司 | A kind of titanium plate for laminoplasty |
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