CN106943186A - Fixator between flexible spinous process - Google Patents
Fixator between flexible spinous process Download PDFInfo
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- CN106943186A CN106943186A CN201710227537.5A CN201710227537A CN106943186A CN 106943186 A CN106943186 A CN 106943186A CN 201710227537 A CN201710227537 A CN 201710227537A CN 106943186 A CN106943186 A CN 106943186A
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- China
- Prior art keywords
- clamping part
- support portion
- resilient support
- spinous process
- fixator
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- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
- A61B17/7068—Devices comprising separate rigid parts, assembled in situ, to bear on each side of spinous processes; Tools therefor
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to fixator between flexible spinous process, belong to technical field of medical instruments；It is made by shape memory alloy material, including upper clamping part, middle resilient support portion and lower clamping part, is bolted between the upper clamping part, middle resilient support portion and lower clamping part；Perforate is equipped with the upper clamping part and lower clamping part, in order to be connected by bolt with spinous process.Relative to middle resilient support portion, the spinous process up and down being connected respectively with clamping part up and down can do relative rotary motion, to the activity performance of vertebra and backbone without any harmful effect.Middle resilient support portion is in " C " shape structure, and more static fixator has higher elasticity and deformability, is easy to do axial relative motion between neighbouring centrum, the biomechanical environment destruction to centrum is small, and preferably protects the anatomical structure of backbone.
Description
Technical field
The present invention relates to fixator between flexible spinous process, belong to technical field of medical instruments.
Background technology
Straitness of lumbar vertebrae is the common disease of orthopaedics, and its pathogenic factor is sufficiently complex, there is geneogenous lumbar spinal stenosis,
Also have because backbone occurs caused by degenerative disorders, to also have because wound causes spine fracture or dislocation or waist Post operation to cause
Spinal canal stenosis.Primary lumbar spinal stenosis refers to merely as caused by congenital osteodysplasty, clinical more rare.Secondary cases
Lumbar spinal stenosis refers to by level vertebral, degenerative joint denaturation or spondylolisthesis, traumatic fracture dislocation, osteitis deformans
Deng caused by, most common of which is degenerative stenosis.At present, to the preferred expectant treatment for the treatment of of the disease, and
Then need to carry out operative treatment when expectant treatment is invalid.Operative treatment measure mainly includes intervertebral disc marrow nuclear excising, vertebrae plate resection and subtracted
Pressure plus bone grafting fusion and/or interior fixation.But clinical treatment outcome shows, after above-mentioned operative treatment, degeneration spinal canal stenosis
The postoperative clinical improvement rate of disease patient is not improved, and its main cause is the biology that strong interior fixation and fusion destroy centrum
Mechanical environment, causes the transmission of load not meet physiological conditions, thus can further result in stress shielding and cause bone amount to reduce, close on
Section facet joint regression accelerates, interior fixation produces a series of problems, such as loosening, interior fixed fatigue break.
Therefore, researcher proposes the concept of non-integration fixation in recent years.So-called non-integration is fixed, and is referred to
Change the scope of activities and load of centrum motion segment, but without a kind of fixed form of fusion.Preferable non-integration is consolidated
Surely beneficial activity can be retained, and prevent physiological load between the algesiogenic direction of motion and plane of movement, reservation paragraph from passing
Pass, so as to pain of alleviation and prevent Adjacent segment degeneration.The species that non-integration is fixed is more, including fixed system between spinous process
System, the Dynamic fixation system of pedicle, pedicle nail semi-rigid metal fixed system, artificial intervertebral disc system
System, zygapophysial joint exchange system etc..Wherein, fusion inter-spinous stabilization devices be implanted in two lumbar vertebraes centrum spinous process it
Between, implantation section is maintained a neutral position or antecurvature position.Conventional implant has X-Stop, Wallis and Coflex etc. fixed
System, however, these fixed systems belong to static fixation, limits the activity performance of backbone, considerably limit the rotation of centrum
Transhipment is dynamic, so that the easy damaged vertebra when centrum rotates.
The content of the invention
It is reasonable in design, make it is an object of the invention to the defect for prior art and not enough there is provided one kind is simple in construction
With fixator between convenient flexible spinous process.
To achieve the above object, the technical solution adopted by the present invention is：It is made by shape memory alloy material, bag
Include clamping part, middle resilient support portion and lower clamping part, the upper clamping part, middle resilient support portion and lower clamping part
Between be bolted；Perforate is equipped with the upper clamping part and lower clamping part, in order to be connected by bolt with spinous process
It is fixed.
The resilient support portion of the centre is in " C " shape structure.
Fixator between the flexible spinous process of the present invention, as a result of above technical scheme, makes it compared with prior art, has
There are following advantage and beneficial effect：
1st, whole fixator divide into clamping part, middle resilient support portion and lower clamping part etc. three single zero
Part, and be attached by way of bolt.Clamping part is connected by bolt with spinous process due to above and below, thus relative to
Middle resilient support portion, up and down spinous process can do relative rotary motion, to the activity performance of vertebra and backbone without any bad shadow
Ring.
2nd, middle resilient support portion is in " C " shape structure, and more static fixator has higher elasticity and deformability, is easy to
Axial relative motion is done between neighbouring centrum, the biomechanical environment destruction to centrum is small, and preferably protects ridge
The anatomical structure of post.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the front view of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is the left view of the present invention；
Fig. 4 is the schematic perspective view of the present invention；
Description of reference numerals：
The upper clamping parts of 1--；Resilient support portion in the middle of 2--；Clamping part under 3--；4-- bolts.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings.
Referring to such as Fig. 1 -- shown in Fig. 4, present embodiment is made by nickel-titanium shape memory alloy material, including
Upper clamping part 1, middle resilient support portion 2 and lower clamping part 3, the upper clamping part 1, middle resilient support portion 2 and lower folder
Hold and connected by bolt 4 between portion 3；It is described to be equipped with perforate on upper clamping part 1 and lower clamping part 3, in order to pass through bolt
It is connected with spinous process.
In use, clamping part will be connected respectively with corresponding spinous process up and down up and down, and it is bolted.Due to pressing from both sides up and down
Hold portion to be bolted with middle resilient support portion, therefore clamping part can be freely rotatable motion up and down, without by
The restriction in middle resilient support portion, that is to say, that spinous process can do relative rotary motion up and down, the normal work to vertebra and backbone
Dynamic performance will not produce influence.
Middle resilient support portion is in " C " shape structure, and more static fixator has higher elasticity and deformability, be easy on
Axial relative motion is done between lower adjacent vertebral, the biomechanical environment destruction to centrum is small, and preferably protects backbone
Anatomical structure.
Present embodiment can do relative rotary motion relative to middle resilient support portion, up and down spinous process, to vertebra
And the activity performance of backbone is without any harmful effect.It is easy to do axial relative motion between neighbouring centrum, to centrum
Biomechanical environment destruction is small, and preferably protects the anatomical structure of backbone.
The above, is merely illustrative of the technical solution of the present invention and unrestricted, those of ordinary skill in the art are to this hair
Other modifications or equivalent that bright technical scheme is made, without departing from the spirit and scope of technical solution of the present invention,
It all should cover among scope of the presently claimed invention.
Claims (2)
1. fixator between flexible spinous process, it is characterised in that：It is made by shape memory alloy material, including upper clamping part,
Middle resilient support portion and lower clamping part, spiral shell is passed through between the upper clamping part, middle resilient support portion and lower clamping part
Tether and connect；Perforate is equipped with the upper clamping part and lower clamping part.
2. fixator between flexible spinous process according to claim 1, it is characterised in that：Middle resilient support portion is in " C " shape
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710227537.5A CN106943186A (en) | 2017-04-10 | 2017-04-10 | Fixator between flexible spinous process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710227537.5A CN106943186A (en) | 2017-04-10 | 2017-04-10 | Fixator between flexible spinous process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106943186A true CN106943186A (en) | 2017-07-14 |
Family
ID=59474542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710227537.5A Pending CN106943186A (en) | 2017-04-10 | 2017-04-10 | Fixator between flexible spinous process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106943186A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315568A (en) * | 2020-10-29 | 2021-02-05 | 四川大学华西医院 | Intervertebral foramen structure maintainer |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101129271A (en) * | 2006-08-21 | 2008-02-27 | 叶中权 | Device for expanding pleurite vertebral column spinous process |
| CN201168030Y (en) * | 2008-03-21 | 2008-12-24 | 创生医疗器械(江苏)有限公司 | Implant article between spinous process |
| CN101332116A (en) * | 2008-07-18 | 2008-12-31 | 南方医科大学 | Spinal crest elastic internal fixation device |
| CN201275131Y (en) * | 2007-04-10 | 2009-07-22 | 王黎明 | Nickel-titanium shape memory alloy non-fusion interspinal fixator |
| CN101610725A (en) * | 2006-11-30 | 2009-12-23 | 帕拉迪格脊骨有限责任公司 | Between vertebral plate-the interspinous vertebral stabilisation systems |
| CN101785696A (en) * | 2010-02-10 | 2010-07-28 | 上海理工大学 | Non-fusion implantation device between dynamic spinous processes |
| CN201719361U (en) * | 2010-06-23 | 2011-01-26 | 北京市春立正达科技开发有限公司 | Spinal non-fusion fixing device |
| CN102397097A (en) * | 2011-12-29 | 2012-04-04 | 山东威高骨科材料有限公司 | Interspinous fusion device |
| CN207627389U (en) * | 2017-04-10 | 2018-07-20 | 苏州海斯凯医疗科技有限公司 | Fixator between flexible spinous process |
-
2017
- 2017-04-10 CN CN201710227537.5A patent/CN106943186A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101129271A (en) * | 2006-08-21 | 2008-02-27 | 叶中权 | Device for expanding pleurite vertebral column spinous process |
| CN101610725A (en) * | 2006-11-30 | 2009-12-23 | 帕拉迪格脊骨有限责任公司 | Between vertebral plate-the interspinous vertebral stabilisation systems |
| CN201275131Y (en) * | 2007-04-10 | 2009-07-22 | 王黎明 | Nickel-titanium shape memory alloy non-fusion interspinal fixator |
| CN201168030Y (en) * | 2008-03-21 | 2008-12-24 | 创生医疗器械(江苏)有限公司 | Implant article between spinous process |
| CN101332116A (en) * | 2008-07-18 | 2008-12-31 | 南方医科大学 | Spinal crest elastic internal fixation device |
| CN101785696A (en) * | 2010-02-10 | 2010-07-28 | 上海理工大学 | Non-fusion implantation device between dynamic spinous processes |
| CN201719361U (en) * | 2010-06-23 | 2011-01-26 | 北京市春立正达科技开发有限公司 | Spinal non-fusion fixing device |
| CN102397097A (en) * | 2011-12-29 | 2012-04-04 | 山东威高骨科材料有限公司 | Interspinous fusion device |
| CN207627389U (en) * | 2017-04-10 | 2018-07-20 | 苏州海斯凯医疗科技有限公司 | Fixator between flexible spinous process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112315568A (en) * | 2020-10-29 | 2021-02-05 | 四川大学华西医院 | Intervertebral foramen structure maintainer |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |