CN2631440Y - Semi-rigid vertebrae front fixing plate - Google Patents
Semi-rigid vertebrae front fixing plate Download PDFInfo
- Publication number
- CN2631440Y CN2631440Y CN 03266244 CN03266244U CN2631440Y CN 2631440 Y CN2631440 Y CN 2631440Y CN 03266244 CN03266244 CN 03266244 CN 03266244 U CN03266244 U CN 03266244U CN 2631440 Y CN2631440 Y CN 2631440Y
- Authority
- CN
- China
- Prior art keywords
- plate body
- semi
- anterior cervical
- plate
- cervical fixation
- 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
Links
Images
Landscapes
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model relates to a semi-rigid anterior cervical fixed plate, which includes a holed plate body with certain thickness and camber, the globoidal intermediate regime in the plate body is a gradually variational thin plane, the middle part of the plate body is provided with a cone hole used for putting sink-screw, the cone hole is a sink-screw from the external globoidal to the internal globoidal of the plate body. The fixed plate of the utility model adopts semi-rigid fixation (elastic fixation), which is beneficial to accelerate the fusion of the graft bone and reduce the lesion of adjacent segment after operation; the design of the cone hole makes the screw locking reliable, the fixed plate surface hasn't surface process, which doesn't produce local compression to esophagus, the fixed angle of the screw is adjustable, and the design of the bonding fixed plate further increases the elasticity of fixation system. The utility model has the characters of reasonable design, simple structure, easy processing and convenient operation etc., and has good popularizing use-value.
Description
Technical field
This utility model relates to a kind of body implant, particularly a kind of fixing head that is used for anterior cervical operation.
Background technology
Along with the raising of people, adopt anterior cervical operation treatment disease more and more for cervical spine disorders understanding.As a necessary part that improves this surgical effect, the use of anterior cervical fixation plate system also just becomes the focus of this kind operation at present, also is the focus of each big spinal column medical implant company research.The effect of anterior cervical fixation plate has:
1. keep the height of cervical vertebra: a period of time behind the anterior cervical operation, plant bone mass has certain absorption, and the height of cervical vertebra can be because the part plant bone mass absorbs the variation that produces highly reduction and curvature.At this moment, the use of preceding road fixing head just outstanding its overcome the effect of this complication.
2. keep or rebuild the physiology curvature of cervical vertebra: cervical spondylosis patient's cervical vertebra is through the change procedure in a long period, so the change of cervical curvature is that common pathological changes.When the patient formulated operation plan, the reconstruction of cervical curvature was one that must be included.Preceding road fixing head provides an ideal means for the doctor.
3. stablize cervical vertebra: cervical vertebra degenerated shakiness also is common cervical spondylosis pathological state, certain preceding road fixing head and merge for cervical vertebra stable a good stable mode is provided.Simultaneously, also be a Stabilization for plant bone mass, can effectively prevent the loosening and displacement of plant bone mass.The anterior cervical operation of long segment particularly.
4. improve the fusion rate of bone grafting: fixing back cervical vertebra is relatively stable, has created a more stable environment for the creeping substitution of bone grafting, helps the growth of bone grafting, improves fusion rate.
The operation principle of anterior cervical fixation plate has:
Support concept: prevent axial deformity;
In and principle: reduce distortion, shearing, axial load;
Tension band principle: opposing distraction force and bending moment;
Bridge-type fixation principle: cross over, substitute, lighten the burden.
Also there is some problem from the design and use in the present existing anterior cervical fixation panel products of each company, as: stress shielding; The adjacent segment pathological changes is quickened; Because rigidity is too strong, the loosening easily and fracture of implant and clinical complication etc. is arranged.
Summary of the invention
Main purpose of the present utility model is the biomechanical principle according to cervical vertebra, provides a kind of and can overcome insufficient semi-rigid anterior cervical fixation plate in the existing product.
The semi-rigid anterior cervical fixation plate that this utility model provides, it comprises that one has the plate body with holes of certain thickness and camber, it is characterized in that: described plate body intrados interlude is the skiving face of a gradual change.
Above-mentioned semi-rigid anterior cervical fixation plate, described plate body is respectively established a bulge hole for four jiaos, respectively establishes a location pin hole in the middle of plate body minor face two bulge holes, and the bellmouth of placing sunk screw is established at the plate body middle part, and the external cambered surface of described bellmouth slave plate is tapered to intrados.
Above-mentioned semi-rigid anterior cervical fixation plate, a gap is respectively offered in described plate body minor face centre position, and the external cambered surface of described gap slave plate is tapered to intrados.
Above-mentioned semi-rigid anterior cervical fixation plate, described one side gap is bigger slightly than another side gap.
Above-mentioned semi-rigid anterior cervical fixation plate, the long limit of described plate body is single arc limit.
Above-mentioned semi-rigid anterior cervical fixation plate, the long limit of described plate body is two arcs or multi sphere limit.
Above-mentioned semi-rigid anterior cervical fixation plate, the bellmouth on the described plate body are 0-8, and tapered bore profile is single circle or Long Circle.
Above-mentioned semi-rigid anterior cervical fixation plate, described bellmouth word order or obliquely arrange in groups or be staggered.
Above-mentioned semi-rigid anterior cervical fixation plate, described plate body width is 12～20 millimeters.
Above-mentioned semi-rigid anterior cervical fixation plate, skiving section thickness is 50～70% of plate body original thickness in the middle of the described plate body
Adopt above technical scheme, had following technique effect:
1. the width minimum of fixing head: do not need to peel off longus colli, wound is little
2. lay in the convenient operation: vertebral body nail draw-in groove, fixing head measurement of length, placement, fixing in the convenient operation
3. semi-rigid fixing (flexible fastening): help quickening the fusion of bone grafting, reduce the pathological changes of operation back adjacent segment.
4. fixing head pre-bending: along the cervical vertebrae physiological curve design, can be according to the concrete condition bending in operation.
5. screw locking: reliable, in the no projection in fixing head surface, can not produce local compression to esophagus.The screw fixed angle is adjustable, in conjunction with the design of fixing head, has further increased the elasticity of fixed system.
6. be equipped with temporary fixed nail, further facilitate correctly laying of fixing head.
7. the gradual change skiving of fixing head thickness design makes fixing head cooperate more with the geometric shape of cervical vertebra, and fixing head and cervical vertebra are attached more.
Description of drawings
Fig. 1-A is this utility model outside drawing;
Fig. 1-B is that fixing head shown in Fig. 1-A is from long side TV structure sketch map;
Fig. 1-C is that fixing head shown in this utility model is from short brink TV structure sketch map;
Fig. 2-A is the outside drawing of another form plate body of this utility model;
Fig. 2-B is that fixing head shown in Fig. 2-A is from long side TV structure sketch map.
The specific embodiment
As Fig. 1-A, Fig. 1-B, and Fig. 1-C shown in, (Semi-rigidAnterior Locking Plate SALP), is one to have the plate body 10 of certain thickness and radian to cervical vertebra front shoe of the present utility model, and on the plate body 10, some holes that penetrate plate body 10 distribute.
Around plate body 10, establish bulge hole 11 respectively, this bulge hole is 11 small at both ends and big in the middle (referring to Fig. 1-B), to adapt to the nail 11 ' that ailhead is the bulge type; 11 is middle in two bulge holes of plate body 10 broadsides, sets a position pin hole 18, and location pin hole 18 is less, is common hole;
At plate body 10 middle parts, if the bellmouth 12 of a plurality of placement sunk screws 12 ', the external cambered surface of bellmouth 12 slave plates is tapered (referring to Fig. 1-B) to intrados, sunk screw 12 ' also is taper, its nail body passes plate body 10 along bellmouth 12, and ailhead is stuck in the bellmouth 12, and ailhead can be imbedded among the plate body 10 like this, in the no projection in fixing head surface, can not produce local compression to esophagus; Bellmouth 12 can be single conical bore, also can be for oval taper hole, shown in Fig. 2-A; Bellmouth 12 can be provided with one, also can be provided with a plurality ofly, and shown in this illustration 3, but can be 0-8 intermediate change, when a plurality of bellmouth 12 was set, these holes can word order, also can obliquely arrange in groups, can also be staggered; On the less fixing head of those sizes, also can not establish bellmouth; The number of bellmouth 12 and shape and arrangement mode can be done multiple combination and variation according to the concrete use location of fixing head, and differing at this one lists.
Respectively offer a gap 15,15 ' in centre position, limit, plate body 10 two ends, gap is 15,15 ' tapered from plate body 10 extrados to intrados (referring to Fig. 1-C), two gap 15 on the plate body 10,15 ' can identical size, and also can one big slightly, gap 15 ' shown in the figure wants big than gap 15.
Fig. 2-A and 2-B are the outside drawing of another form plate body 10 of this utility model.This embodiment and last mode difference are that the long limit of plate body 10 is single arc 16.Bellmouth 12 can be established one, shown in Fig. 2-A, also can establish a plurality ofly as described above, does not repeat them here.
This utility model uses new titanium alloy (Ti-6Al-4V) to make, have outstanding anticorrosive, resistance to wear, resisting fatigue, biocompatibility and influence the compatibility.
Fixing head of the present utility model, compared with prior art, semi-rigid fixing (flexible fastening) helps quickening the fusion of bone grafting, meets the biomechanics design, reduces the pathological changes of operation back adjacent segment; The design of bellmouth makes the screw locking reliable, in the no projection in fixing head surface, can not produce local compression to esophagus, and the screw fixed angle is adjustable, in conjunction with the design of fixing head, has further increased the elasticity of fixed system.The utlity model has processing reasonable in design, simple in structure, easy, characteristics such as easy to use, have good value for applications.
Claims (10)
1, a kind of semi-rigid anterior cervical fixation plate, it comprises that one has the plate body with holes of certain thickness and camber, it is characterized in that: described plate body intrados interlude is the skiving face of a gradual change.
2, semi-rigid anterior cervical fixation plate as claimed in claim 1, it is characterized in that: described plate body is respectively established a bulge hole for four jiaos, in the middle of plate body minor face two bulge holes, respectively establish a location pin hole, the bellmouth of placing sunk screw is established at the plate body middle part, and the external cambered surface of described bellmouth slave plate is tapered to intrados.
3, semi-rigid anterior cervical fixation plate as claimed in claim 1 or 2 is characterized in that: a gap is respectively offered in described plate body minor face centre position, and the external cambered surface of described gap slave plate is tapered to intrados.
4, semi-rigid anterior cervical fixation plate as claimed in claim 3, it is characterized in that: described one side gap is bigger slightly than another side gap.
5, semi-rigid anterior cervical fixation plate as claimed in claim 1 or 2 is characterized in that: the long limit of described plate body is single arc limit.
6, semi-rigid anterior cervical fixation plate as claimed in claim 1 or 2 is characterized in that: the long limit of described plate body is two arcs or multi sphere limit.
7, semi-rigid anterior cervical fixation plate as claimed in claim 2 is characterized in that: the bellmouth on the described plate body is 0-8, and tapered bore profile is single circle or Long Circle.
8, semi-rigid anterior cervical fixation plate as claimed in claim 7 is characterized in that: described bellmouth word order or obliquely arrange in groups or be staggered.
9, semi-rigid anterior cervical fixation plate as claimed in claim 1 or 2, it is characterized in that: described plate body width is 12～20 millimeters.
10, semi-rigid anterior cervical fixation plate as claimed in claim 1 or 2 is characterized in that: skiving section thickness is 50～70% of plate body original thickness in the middle of the described plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266244 CN2631440Y (en) | 2003-06-27 | 2003-06-27 | Semi-rigid vertebrae front fixing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03266244 CN2631440Y (en) | 2003-06-27 | 2003-06-27 | Semi-rigid vertebrae front fixing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2631440Y true CN2631440Y (en) | 2004-08-11 |
Family
ID=34298157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03266244 Expired - Fee Related CN2631440Y (en) | 2003-06-27 | 2003-06-27 | Semi-rigid vertebrae front fixing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2631440Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706413A (en) * | 2015-04-02 | 2015-06-17 | 王鹏程 | Blade plate for posterolateral fractures of tibial plateau |
| CN105559867A (en) * | 2016-02-19 | 2016-05-11 | 上海市东方医院 | Spine-dissection internal fixation device and manufacturing method thereof |
| CN110123433A (en) * | 2019-05-15 | 2019-08-16 | 山东新华联合骨科器材股份有限公司 | A kind of internal fixing system for anterior cervical vertebrae |
-
2003
- 2003-06-27 CN CN 03266244 patent/CN2631440Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104706413A (en) * | 2015-04-02 | 2015-06-17 | 王鹏程 | Blade plate for posterolateral fractures of tibial plateau |
| CN105559867A (en) * | 2016-02-19 | 2016-05-11 | 上海市东方医院 | Spine-dissection internal fixation device and manufacturing method thereof |
| CN105559867B (en) * | 2016-02-19 | 2018-08-28 | 上海市东方医院 | Anatomy of spine inner fixing device and preparation method thereof |
| CN110123433A (en) * | 2019-05-15 | 2019-08-16 | 山东新华联合骨科器材股份有限公司 | A kind of internal fixing system for anterior cervical vertebrae |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10258388B2 (en) | Device and method for treatment of spondylotic disease | |
| CN102133132B (en) | Dynamic screw implant for pedicle of vertebral arch | |
| US8636738B2 (en) | Dynamic cervical plate | |
| US8202299B2 (en) | Interspinous implant, tools and methods of implanting | |
| KR20070029645A (en) | Polyaxial adjustment of facet joint prostheses | |
| US8591549B2 (en) | Variable durometer lumbar-sacral implant | |
| US9532822B2 (en) | Pedicle screw with reverse spiral cut and methods thereof | |
| US10624675B2 (en) | Spinal stabilization system | |
| US20060149228A1 (en) | Device for dynamically stabilizing bones or bone fragments, especially thoracic vertebral bodies | |
| JP2007527749A (en) | Flexible anterior cervical plate | |
| US20200170678A1 (en) | Lateral spine stabilization devices and methods | |
| US20120259366A1 (en) | Lumbar-sacral implant | |
| CN2631440Y (en) | Semi-rigid vertebrae front fixing plate | |
| US20120259363A1 (en) | Viscoelastic lumbar-sacral implant | |
| WO2021258546A1 (en) | Assembled cervical vertebra and uncovertebral joint fusion cage | |
| US20150025573A1 (en) | Translational plate and compressor instrument | |
| CN109481099B (en) | Fusion device | |
| CN104116579B (en) | Implantation unit is strutted between a kind of Via Posterior Spinal Approach ridge | |
| CN203564323U (en) | Improved vertebral pedicle extending device | |
| CN2529612Y (en) | Elastic artificial joint system of spinal column | |
| CN101366655A (en) | Dynamic spinous process stabilizer | |
| CN216021553U (en) | Thoracolumbar spine anterior locking and pressurizing fusion device | |
| CN117084832B (en) | Spinal facet joint prosthesis | |
| RU2814022C1 (en) | Method for dynamic stabilization of lumbosacral vertebrae between the last lumbar vertebra and the first sacral vertebra in dogs and device for dynamic stabilization of lumbosacral vertebrae between the last lumbar vertebra and the first sacral vertebra in dogs | |
| CN211325495U (en) | Anterior reduction internal fixation device for treating Hangman fracture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |