CN207627389U - Fixator between flexible spinous process - Google Patents
Fixator between flexible spinous process Download PDFInfo
- Publication number
- CN207627389U CN207627389U CN201720373275.9U CN201720373275U CN207627389U CN 207627389 U CN207627389 U CN 207627389U CN 201720373275 U CN201720373275 U CN 201720373275U CN 207627389 U CN207627389 U CN 207627389U
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- CN
- China
- Prior art keywords
- clamping part
- support portion
- flexible support
- spinous process
- intermediate flexible
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- 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.)
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Abstract
The utility model is related to fixators between flexible spinous process, belong to the field of medical instrument technology；It is made by shape memory alloy material, including upper clamping part, intermediate flexible support portion and lower clamping part, is bolted between the upper clamping part, intermediate flexible support portion and lower clamping part；It is equipped with trepanning on the upper clamping part and lower clamping part, in order to be connected and fixed by bolt and spinous process.Relative to intermediate flexible support portion, the spinous process up and down being connected respectively with upper and lower clamping part can do relative rotary motion, to the activity performance of vertebra and backbone without any harmful effect.Intermediate flexible support portion is in " C " shape structure, and more static fixator has higher elasticity and deformability, small to the biomechanical environment destruction of centrum convenient for doing axial relative motion between neighbouring centrum, and preferably protects the anatomical structure of backbone.
Description
Technical field
The utility model is related to fixators between flexible spinous process, belong to the field of medical instrument technology.
Background technology
Straitness of lumbar vertebrae is the common disease of orthopaedics, and pathogenic factor is sufficiently complex, there is geneogenous lumbar spinal stenosis,
Also have caused by degenerative disorders occur for backbone, cause after also causing spine fracture or dislocation or waist to be performed the operation due to wound
Spinal canal stenosis.Primary lumbar spinal stenosis refers to merely caused by congenital osteodysplasty, and clinic is more rare.It is secondary
Lumbar spinal stenosis refers to by level vertebral, degenerative joint denaturation or spondylolisthesis, traumatic fracture dislocation, osteitis deformans
Deng caused by, one of the most common is degenerative stenosis.Currently, to the treatment first choice expectant treatment of the disease, and
It then needs to carry out operative treatment when expectant treatment is invalid.Operative treatment measure mainly subtracts including intervertebral disc marrow nuclear excising, vertebrae plate resection
Pressure plus bone grafting fusion and/or interior fixation.However clinical treatment outcome shows after above-mentioned operative treatment, degeneration spinal canal stenosis
The postoperative clinical improvement rate of disease patient does not improve, the main reason is that strong interior fixation and fusion destroys the biology of centrum
Mechanical environment causes the transmission of load not meet physiological conditions, thus can further result in stress shielding and bone amount is caused to reduce, close on
A series of problems, such as segment facet joint regression accelerates, interior fixed generation loosens, interior fixed fatigue break.
Therefore, researcher proposes the fixed concept of non-integration in recent years.So-called non-integration is fixed, and is referred to
The scope of activities and load for changing centrum motion segment, but without a kind of fixed form of fusion.Ideal non-integration is solid
Surely it can retain beneficial to activity, and prevent the algesiogenic direction of motion and plane of movement, physiological load passes between reservation paragraph
It passs, so as to relieve pain and prevent Adjacent segment degeneration.The fixed type of non-integration 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, so that implantation segment is maintained a neutral position or antecurvature position.Common implantation material has X-Stop, Wallis and Coflex etc. fixed
System limits the activity performance of backbone however, these fixed systems belong to static fixation, considerably limits the rotation of centrum
Transhipment is dynamic, to the easy damaged vertebra when centrum rotates.
Utility model content
The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of simple in structure, design conjunction is provided
Fixator between reason, flexible spinous process easy to use.
To achieve the above object, the technical solution adopted in the utility model is：It by shape memory alloy material make and
At, including upper clamping part, intermediate flexible support portion and lower clamping part, the upper clamping part, intermediate flexible support portion and under
It is bolted between clamping part；It is equipped with trepanning on the upper clamping part and lower clamping part, in order to pass through bolt and spine
It is prominent to be connected and fixed.
The flexible support portion of the centre is in " C " shape structure.
Fixator between the flexible spinous process of the utility model makes itself and prior art phase as a result of above technical scheme
Than having the following advantages and advantageous effect：
1, entire fixator is divided into clamping part, intermediate flexible support portion and lower clamping part etc. three individual zero
Part, and be attached by way of bolt.It is connected with spinous process by bolt due to upper and lower clamping part, thus relative to
Intermediate flexible support portion, upper and lower spinous process can do relative rotary motion, to the activity performance of vertebra and backbone without any bad shadow
It rings.
2, intermediate flexible support portion is in " C " shape structure, and more static fixator has higher elasticity and deformability, is convenient for
Axial relative motion is done between neighbouring centrum, it is small to the biomechanical environment destruction of centrum, and preferably protect ridge
The anatomical structure of column.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the front view of the utility model；
Fig. 2 is the vertical view of the utility model；
Fig. 3 is the left view of the utility model；
Fig. 4 is the stereoscopic schematic diagram of the utility model；
Reference sign：
The upper clamping parts of 1--；Flexible support portion among 2--；Clamping part under 3--；4-- bolts.
Specific implementation mode
The utility model will be further described below with reference to 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, intermediate flexible support portion 2 and lower clamping part 3, the upper clamping part 1, intermediate flexible support portion 2 and lower folder
It holds and is connected by bolt 4 between portion 3；It is described to be equipped with trepanning on upper clamping part 1 and lower clamping part 3, in order to pass through bolt
It is connected and fixed with spinous process.
In use, upper and lower clamping part is connected with corresponding spinous process up and down respectively, and it is bolted.Due to pressing from both sides up and down
Hold portion to be bolted with intermediate flexible support portion, therefore clamping part can be freely rotatable movement up and down, without by
The restriction of intermediate flexible support portion, that is to say, that upper and lower spinous process can do relative rotary motion, the normal work to vertebra and backbone
Dynamic performance will not have an impact.
Intermediate flexible support portion is in " C " shape structure, and more static fixator has higher elasticity and deformability, convenient for upper
Axial relative motion is done between lower adjacent vertebral, it is small to the biomechanical environment destruction of centrum, and preferably protect backbone
Anatomical structure.
Present embodiment is relative to intermediate flexible support portion, and upper and lower spinous process can do relative rotary motion, to vertebra
And the activity performance of backbone is without any harmful effect.Convenient for doing 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 intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope should all cover in the right of the utility model.
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,
Intermediate flexible support portion and lower clamping part pass through spiral shell between the upper clamping part, intermediate flexible support portion and lower clamping part
It tethers and connects；It is equipped with trepanning on the upper clamping part and lower clamping part.
2. fixator between flexibility spinous process according to claim 1, it is characterised in that：Intermediate flexible support portion is in " C " shape
Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720373275.9U CN207627389U (en) | 2017-04-10 | 2017-04-10 | Fixator between flexible spinous process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720373275.9U CN207627389U (en) | 2017-04-10 | 2017-04-10 | Fixator between flexible spinous process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207627389U true CN207627389U (en) | 2018-07-20 |
Family
ID=62860561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720373275.9U Expired - Fee Related CN207627389U (en) | 2017-04-10 | 2017-04-10 | Fixator between flexible spinous process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207627389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943186A (en) * | 2017-04-10 | 2017-07-14 | 苏州海斯凯医疗科技有限公司 | Fixator between flexible spinous process |
-
2017
- 2017-04-10 CN CN201720373275.9U patent/CN207627389U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943186A (en) * | 2017-04-10 | 2017-07-14 | 苏州海斯凯医疗科技有限公司 | Fixator between flexible spinous process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180720 Termination date: 20190410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |