CN108113741A - A kind of titanium plate for laminoplasty - Google Patents
A kind of titanium plate for laminoplasty Download PDFInfo
- Publication number
- CN108113741A CN108113741A CN201810057708.9A CN201810057708A CN108113741A CN 108113741 A CN108113741 A CN 108113741A CN 201810057708 A CN201810057708 A CN 201810057708A CN 108113741 A CN108113741 A CN 108113741A
- Authority
- CN
- China
- Prior art keywords
- titanium plate
- lateral mass
- plate
- titanium
- laminoplasty
- 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.)
- Pending
Links
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910052719 titanium Inorganic materials 0.000 title claims abstract description 72
- 239000010936 titanium Substances 0.000 title claims abstract description 72
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 description 12
- 238000002513 implantation Methods 0.000 description 9
- 238000002271 resection Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000004927 fusion Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000002684 laminectomy Methods 0.000 description 2
- 210000000278 spinal cord Anatomy 0.000 description 2
- 206010041591 Spinal osteoarthritis Diseases 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 208000036319 cervical spondylosis Diseases 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 208000005801 spondylosis Diseases 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
- A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
Abstract
The present invention relates to a kind of titanium plates for laminoplasty, including titanium plate body, which is fixed on the vertebral plate notch broken ends of fractured bone, and titanium plate body one end is bare terminal end, bare terminal end has upper interlaminar clamp and lower interlaminar clamp, and the vertebral plate notch broken ends of fractured bone is held on therebetween by the two；The titanium plate lateral mass of the other end of titanium plate body is fastened on cervical lateral mass；Screw hole position on the titanium plate lateral mass is distributed along the diagonal of cervical lateral mass anatomical features, and the upper interlaminar clamp of bare terminal end and lower interlaminar clamp are into angle of dehiscing；Titanium plate lateral mass near-end is equipped with block, forms clamping structure.The present invention reduces the risk that lateral mass screw is loosened, come off, and improves the fixed stability of titanium plate.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of titanium plate for laminoplasty.
Background technology
In the process that modern economy rapidly develops, the 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 during 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 mainly includes：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
The syncretizing effect of operation is directly ensure that with the fixed structure of titanium plate.The implantation of titanium plate lateral mass is found during clinical practice follow-up
Screw easily loosen, coming off causes fixed Fusion failure of performing the operation；Titanium plate is inadequate to the support of vertebral plate and maintenance stability,
Cause the postoperative normal function for being unable to maintain that the segment body of cervical vertebra.For these situations, one kind of this patent is used for laminoplasty
The titanium plate of art can effectively reduce the risk that lateral mass screw is loosened, come off, and improve the fixed stability of titanium plate.
The content of the invention
It is an object of the invention to provide a kind of titanium plates for laminoplasty, are loosened, come off with reducing lateral mass screw
Risk, improve the fixed stability of titanium plate.
To achieve the above object, the technical solution that specifically provides of the present invention is：A kind of titanium plate for laminoplasty, bag
Titanium plate body is included, which is fixed on the vertebral plate notch broken ends of fractured bone, and titanium plate body one end is bare terminal end, and bare terminal end has upper
Interlaminar clamp and lower interlaminar clamp are provided with screw hole position in upper interlaminar clamp, and the vertebral plate notch broken ends of fractured bone is held on therebetween by the two；Titanium
The titanium plate lateral mass of the other end of plate body is fastened on cervical lateral mass；Screw hole position on the titanium plate lateral mass is along cervical vertebra side
The diagonal distribution of block anatomical features, the upper interlaminar clamp of bare terminal end and lower interlaminar clamp are into angle of dehiscing；Titanium plate lateral mass near-end is equipped with
Block forms clamping structure.
A kind of titanium plate for laminoplasty is further set：Screw hole position 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 set：The length of the upper interlaminar clamp is more than the length of lower vertebral plate.
A kind of titanium plate for laminoplasty is further set：The block is mutually perpendicular to titanium plate lateral mass.
The principle of the present invention：A kind of titanium plate for laminoplasty of the present invention provides lateral mass screw hole position along cervical lateral mass
The diagonal distribution of anatomical features, accords in lateral mass screw method for implantation Mager into nail method, it is ensured that lateral mass screw is along sagittal plane
Into certain inclination angle depth capacity is implanted on cervical lateral mass with coronal-plane, is improved the withdrawal resistance of lateral mass screw to the full extent and is resisted
Pull out intensity.
The present invention compare the prior art the advantages of：Interlaminar clamp provides certain with lower interlaminar clamp on titanium plate bare terminal end
Mouth angle, it is ensured that the chucking power during vertebral plate is clamped gradually increases upper interlaminar clamp with lower interlaminar clamp, so as to improve vertebral plate notch
The reliability of the broken ends of fractured bone.
In addition, the titanium plate lateral mass near-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 moves back and forth, 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 by the upper interlaminar clamp into angle of dehiscing and lower interlaminar clamp before.
During fixing screws are implanted into, the block of titanium plate lateral mass near-end can play connective stability, prevent cervical vertebra side
Block is moved back and forth compared with titanium plate；Since titanium plate lateral mass hole position is diagonally distributed, it is suitable for Mager into nail method, so as to really
Lateral mass screw depth capacity implantation lateral mass is protected, improves the resisting pull out forces of lateral mass screw.
Description of the drawings
Fig. 1 is preoperative body of cervical vertebra structure 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 structure diagram of laminoplasty titanium plate；Fig. 4 be vertebrae plate resection after consolidated by laminoplasty titanium plate
Fixed body of cervical vertebra sagittal plane structure diagram；Fig. 5 is the front view of Fig. 2；Fig. 6 is the top view of Fig. 2.
Specific embodiment
A kind of structure diagram for titanium plate specific embodiment for laminoplasty that Fig. 2 is provided by this patent；
Fig. 3 be vertebrae plate resection after by the fixed body of cervical vertebra coronal-plane structure diagram of laminoplasty titanium plate；Fig. 4 be vertebrae plate resection after by
The fixed body of cervical vertebra sagittal plane structure diagram of laminoplasty titanium plate；Fig. 5 is the front 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 outwards strut the dischargeable capacity for expanding canalis spinalis,
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 bare terminal end 7, and bare terminal end 7 has upper interlaminar clamp 4 and lower interlaminar clamp
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 1 notch of vertebral plate and break
The utensil receiving opening of 1-1 is held, the other end titanium plate lateral mass 3 of titanium plate is fastened on cervical lateral mass 2.Titanium plate shown in Fig. 3 it is another
6 near-end of titanium plate lateral mass is held to be equipped with block 8, forms clamping structure, it is ensured that titanium plate cervical lateral mass 2 in implantation process is opposite and titanium plate
It can not move back and forth, improve titanium plate and the connective stability of cervical lateral mass 2.
Unlike the prior art, the lateral mass screw hole position 6 for the titanium plate lateral mass 3 which is provided is along cervical vertebra side
The diagonal distribution of 2 anatomical features of block, the design of diagonal bore position are suitable for Mager into nail method, ensure lateral mass screw 9 along sagittal
On face and coronal-plane into certain inclination angle depth capacity implantation cervical lateral mass 2, and common titanium plate lateral mass screw hole position 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 position 6 that the patent provides can improve 9 effective implantation depth of lateral mass screw to a certain extent,
Reduce the risk that lateral mass screw 9 is loosened, come off.
As shown in fig. 6, the 6 paired linea angulata arrangement of lateral mass screw hole position, and D1 is less than D2, D3 is equal to D4.
As shown in figure 5, interlaminar clamp 4 and lower interlaminar clamp 5 are into angle of dehiscing on titanium plate bare terminal end 7, and L1 is more than L2.
Unlike the prior art, the bare terminal end 7 for the titanium plate which is provided 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 insertions of vertebral plate between interlaminar clamp 4 and lower interlaminar clamp 5
When, clamping force can be increasing, and being placed in bare terminal end 7 to vertebral plate 1 plays the role of being fixed temporarily, convenient and 1 notch broken ends of fractured bone 1-1 of vertebral plate
Outwards strut the dischargeable capacity for expanding canalis spinalis.
Above-described embodiment is only used for the inventional idea for illustrating 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 domain of this patent.
Claims (4)
1. a kind of titanium plate for laminoplasty, including titanium plate body, which is fixed on the vertebral plate notch broken ends of fractured bone,
Titanium plate body one end is bare terminal end, and bare terminal end has upper interlaminar clamp and lower interlaminar clamp, and the vertebral plate notch broken ends of fractured bone is held on two by the two
Between person；The titanium plate lateral mass of the other end of titanium plate body is fastened on cervical lateral mass；It is characterized in that：The titanium plate lateral mass
On screw hole position be distributed along the diagonal of cervical lateral mass anatomical features, the upper interlaminar clamp of bare terminal end presss from both sides with lower interlaminar clamp into dehiscing
Angle；Titanium plate lateral mass near-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：Screw on titanium plate lateral mass
The circular hole of two same radius of Kong Weiwei, the horizontal cross distance in the two screw hole centers of circle are 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 more 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 |
|---|---|---|---|
| CN201810057708.9A CN108113741A (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 |
|---|---|---|---|
| CN201810057708.9A CN108113741A (en) | 2018-01-22 | 2018-01-22 | A kind of titanium plate for laminoplasty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108113741A true CN108113741A (en) | 2018-06-05 |
Family
ID=62233080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810057708.9A Pending CN108113741A (en) | 2018-01-22 | 2018-01-22 | A kind of titanium plate for laminoplasty |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108113741A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114027959A (en) * | 2021-11-30 | 2022-02-11 | 迪恩医疗科技有限公司 | Hinge type vertebral lamina fixing plate |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102335037A (en) * | 2011-07-19 | 2012-02-01 | 上海拓腾医疗器械有限公司 | Vertebral plate steel plate for cervical vertebral body |
| CN202665673U (en) * | 2012-06-13 | 2013-01-16 | 常州华森医疗器械有限公司 | Laminoplasty steel plate |
| US20130090688A1 (en) * | 2011-04-01 | 2013-04-11 | Albert A. Montello | Posterior vertebral plating system |
| KR20150119520A (en) * | 2014-04-15 | 2015-10-26 | (주)시지바이오 | Spacer for laminoplasty |
| CN205007017U (en) * | 2015-09-29 | 2016-02-03 | 申勇 | Transport record of a lorry titanium board that opens door behind fixed firm neck |
| CN106037919A (en) * | 2016-05-16 | 2016-10-26 | 广州聚生生物科技有限公司 | Spine vertebral plate bridging system |
| CN208573808U (en) * | 2018-01-22 | 2019-03-05 | 浙江嘉佑医疗器械有限公司 | A kind of titanium plate for laminoplasty |
-
2018
- 2018-01-22 CN CN201810057708.9A patent/CN108113741A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130090688A1 (en) * | 2011-04-01 | 2013-04-11 | Albert A. Montello | Posterior vertebral plating system |
| CN102335037A (en) * | 2011-07-19 | 2012-02-01 | 上海拓腾医疗器械有限公司 | Vertebral plate steel plate for cervical vertebral body |
| CN202665673U (en) * | 2012-06-13 | 2013-01-16 | 常州华森医疗器械有限公司 | Laminoplasty steel plate |
| KR20150119520A (en) * | 2014-04-15 | 2015-10-26 | (주)시지바이오 | Spacer for laminoplasty |
| CN205007017U (en) * | 2015-09-29 | 2016-02-03 | 申勇 | Transport record of a lorry titanium board that opens door behind fixed firm neck |
| CN106037919A (en) * | 2016-05-16 | 2016-10-26 | 广州聚生生物科技有限公司 | Spine vertebral plate bridging system |
| CN208573808U (en) * | 2018-01-22 | 2019-03-05 | 浙江嘉佑医疗器械有限公司 | A kind of titanium plate for laminoplasty |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114027959A (en) * | 2021-11-30 | 2022-02-11 | 迪恩医疗科技有限公司 | Hinge type vertebral lamina fixing plate |
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