CN205586119U - Matched stack type waist interbody fusion cage - Google Patents
Matched stack type waist interbody fusion cage Download PDFInfo
- Publication number
- CN205586119U CN205586119U CN201520821359.5U CN201520821359U CN205586119U CN 205586119 U CN205586119 U CN 205586119U CN 201520821359 U CN201520821359 U CN 201520821359U CN 205586119 U CN205586119 U CN 205586119U
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- Prior art keywords
- fusion device
- main body
- invasive lumbar
- lumbar fusion
- waist
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Abstract
The utility model provides a waist interbody fusion cage, including main part and implantation piece, the main part includes integrated into one piece's upper portion, lower part and connecting portion, the up end on upper portion and the lower terminal surface of lower part all are provided with from the prorsad rake in back just upper portion and lower part are the flexible component, upper portion, lower part and connecting portion form built -in cavity, built -in cavity end is provided with implants the piece, built -in cavity head end is provided with and is used for fixing implants at the spacing district of piece, wide section and the narrow portion of piece including integrated into one piece implant, the wide section both sides are provided with first slide bar and second slide bar respectively, built -in cavity upside and downside be provided with respectively with first slide bar and first spout of second slide bar complex and second spout. The utility model discloses a surgical technique convenience was simple when waist interbody fusion cage used, implanted the piece and was the pre -installation with the main part, need not the doctor to assemble by oneself, and is very convenient.
Description
Technical field
This utility model relates to one and assembles type waist Invasive lumbar fusion device.
Background technology
Lumbar degenerative work is de-, Segmental defect, waist caused by discogenic disease, traumatic lumbar spondylolisthesis
Low back pain that vertebra unstability causes, limb motion sensory disturbance, the most all need row waist to non-operative treatment nonresponder
Fusion fixed by vertebra, and this technology develops into one of current spinal surgery basic art formula.In recent years, between lumbar vertebra
Fusion device is widely used in lumbar spinal fusion.Along with the development of spinal biomechanics and lumbar intervertebral fusion
Extensively application, lumbar intervertebral fusion device quickly grows, of a great variety.
Waist Invasive lumbar fusion device of the prior art, fixes lordosis angle when design, it would be desirable to recover human body
Normal anatomy form, the structure of most waist Invasive lumbar fusion device is for reducing setting from front to back, but ridge
Post fusion is usually and uses through hole interbody fusion or way of escape interbody fusion, all from spinal column
Rear side approach is performed the operation, and Invasive lumbar fusion device is implanted from rear side.The waist Invasive lumbar fusion device using said structure is normal
Its placement can be made hindered because its head is excessive, and after placement completes, have the wind that fusion device exits
Danger, because placing when, expands passage, and the gmatjpdumamics between fusion device and upper hypocentrum is subject to
To impact.
For disadvantages mentioned above, prior art have also developed a kind of waist Invasive lumbar fusion device, including main body and implantation
Block, this body interior is provided with the cavity matched with this main body, and this implantation block rotatably implants this cavity
In.The waist Invasive lumbar fusion device of said structure, in art, main body is first implanted between lumbar vertebra, revolves the most as required
Proceed to implant block, according to implantation block relative to the position of main body, adjust the distance that main body expands.
For the structure of above-mentioned prior art, have the disadvantage in that on the one hand, the waist intervertebral fusion of this structure
Device is to assemble, and needs distributing installation, very inconvenient；On the other hand, the position between block and main body is implanted
Putting and be difficult to precisely judge, operation technique difficulty is big.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.
To this end, a purpose of the present utility model is that proposition is a kind of without assembling in art, perform the operation simple, and
Position judgment waist Invasive lumbar fusion device accurately.
According to a kind of waist Invasive lumbar fusion device of the present utility model, including main body and implantation block, described main body includes
Integrated top, bottom and connecting portion, the upper surface on described top and the lower surface of bottom are provided with
Rake and described upper and lower from back to front are deformable member, described top, bottom and connection
Portion forms build-in cavities, and described build-in cavities end is provided with implantation block, and described build-in cavities head end is provided with
For fixing the spacing zone of described implantation block；
It is sliding that described implantation block includes that integrated width portion and narrow portion, both sides, described wide portion are respectively arranged with first
Lever and the second sliding bar, described build-in cavities the upper side and lower side is respectively arranged with and the first sliding bar and second
First chute of sliding bar cooperation and the second chute.
According to waist Invasive lumbar fusion device of the present utility model, during use, surgical technic is convenient and simple, implants block and master
Body is prepackage, it is not necessary to doctor assembles voluntarily, very convenient；Main body is generally u-shaped, does not has other to connect dress
Put, it is ensured that intensity, calculated main body according to goniometer before installation or implanted the height of block, directly
Presumption is to spacing zone, it is simply that optimal implanting position, and operation is very simple, and fast, precision is high.
It addition, according to the following additional technical characteristic that can also have of this utility model above-described embodiment:
According to an example of the present utility model, described build-in cavities the most highly successively decreases.
According to an example of the present utility model, described main body is substantially U-shaped structure.
According to an example of the present utility model, the upper surface on the top of described main body and the lower surface of bottom are equal
It is provided with barb structure from back to front.
According to an example of the present utility model, described connecting portion is provided with for promoting described implantation block to transport
Dynamic through hole.
According to an example of the present utility model, the outline phase of the shape of described spacing zone and described implantation block
With.
According to an example of the present utility model, the height of described implantation block is set to h, before described main body
End is highly set to H, and rear height is set to D, then should meet following relation, and H is more than D, h and H just
Relevant.
According to an example of the present utility model, form angle between described h and D and be set to α, then, and α
=2*TAN[0.5x (H-h)/L].
Additional aspect of the present utility model and advantage will part be given in the following description, and part will be from following
Description in become obvious, or recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation according to this utility model one embodiment of waist Invasive lumbar fusion device.
Fig. 2 is the axonometric chart according to this utility model one embodiment of waist Invasive lumbar fusion device.
Fig. 3 is the scheme of installation according to this utility model one embodiment of waist Invasive lumbar fusion device.
Fig. 4 is the view one according to this utility model one embodiment of waist Invasive lumbar fusion device.
Fig. 5 is the view two according to this utility model one embodiment of waist Invasive lumbar fusion device.
Shown in figure: 1, main body, 2, implant block, 3, rake, 4, build-in cavities, 5, spacing zone,
6, width portion, 7, narrow portion, 8, barb structure, 9, through hole.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, its
In the most same or similar label represent same or similar element or there is same or like function
Element.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining that this practicality is new
Type, and it is not intended that to restriction of the present utility model.
Below with reference to the accompanying drawings describe in detail according to waist Invasive lumbar fusion device of the present utility model.
As illustrated in fig. 1 and 2, according to waist Invasive lumbar fusion device of the present utility model, including main body 1 and implantation block
2。
Main body 1 includes integrated top, bottom and connecting portion, the upper surface on top and the lower end of bottom
Face is provided with rake 3 from back to front and upper and lower is deformable member, top, bottom and
Connecting portion forms build-in cavities 4, and build-in cavities 4 end is provided with implantation block 2, and build-in cavities 4 head end sets
It is equipped with the spacing zone 5 for fixing implantation block 2；
Implant block 2 and include that integrated wide portion 6 and narrow portion 7, both sides, wide portion 6 are respectively arranged with first and slide
Lever and the second sliding bar, build-in cavities 4 the upper side and lower side is respectively arranged with sliding with the first sliding bar and second
First chute of lever cooperation and the second chute.
As in Figure 3-5, actually used principle of the present utility model is: implant block 2 by the first sliding bar
It is slidably matched carries out slide anteroposterior with the first groove and second groove of the second sliding bar with fusion device main body 1.
Under the most original state, implanting block 2 and be in the end of build-in cavities 4, fusion device main body 1 is substantially in tail end
The structure that high head end is low, is placed into fusion device main body 1 between lumbar vertebra, the barb structure in fusion device main body 1
8 contact with both sides lumbar vertebra.At the through hole 9 of the connecting portion of fusion device main body 1, implantation block 2 is promoted with push rod,
Implant block 2 slowly to move forward, to the spacing zone 5 of the head end of build-in cavities 4, implant block 2 and spacing zone
5 coincide blocks, and i.e. completes operation, and the upper and lower of lumbar vertebra now and fusion device main body 1 is closely tied
Close.
Build-in cavities 4 the most highly successively decreases.Main body 1 is substantially U-shaped structure.The top of main body 1
Upper surface and the lower surface of bottom be provided with barb structure 8 from back to front.Connecting portion is provided with use
In the through hole 9 promoting the motion of described implantation block 2.The shape of spacing zone 5 and the outline of described implantation block 2
Identical.
Due to individual variation, everyone lordotic angle is different, typically between 0-18 degree.For
Waist Invasive lumbar fusion device anatomic form with patient can be mated to greatest extent, implantation block 2 made
Different height h, when implanting block 2 and arriving on front side of fusion device main body 1, with fusion device main body 1 formation
Being highly H, this height H must be more than the height D on rear side of fusion device main body 1.Different h produces different
H, thus different segmental lordosis Alpha is become from D-shaped.Actual product produces many models, doctor according to h
Can be according to preoperative x mating plate, and the measurement in art determines the fusion device using how many lordosis angles.
The height implanting block 2 is set to h, and the front height of described main body 1 is set to H, and rear height is arranged
For D, then should meet following relation, H is more than D, h and H positive correlation.Form angle between h and D to arrange
For α, then, α=2*TAN[0.5x (H-h)/L].
Embodiment one:
For through hole interbody fusion:
Owing to being transforaminal approach, the placement of usual fusion device main body 1 and vertebral body axis can produce one relatively
Big angle, tilts during the design that therefore front end of fusion device main body 1 is taked, say, that this main body
The top of 1 is or/and lower front part is provided with rake 3.The purpose of do so is so that fusion device is finally reaching
While preferable segmental lordosis, and upper hypocentrum produces maximum contact area, thus promotes vertebral fusion.
Embodiment two:
For way of escape interbody fusion:
Owing to being Posterior approach, place and the vertebral body axis of usual fusion device main body 1 produce the angle of relatively
Little, the design ratio that therefore front end of fusion device main body 1 is taked is shallower, say, that this main body 1
Top or/and lower front part is smooth arc-shaped surface.The purpose of do so is also so that fusion device main body 1 is
While reaching preferable segmental lordosis eventually, and upper hypocentrum produces maximum contact area, thus promotes that vertebral body is melted
Close.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " laterally ",
" length ", " width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " perpendicular
Directly ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " footpath
To ", the orientation of the instruction such as " circumferential " or position relationship be based on orientation shown in the drawings or position relationship, only
It is for the ease of describing this utility model and simplifying description rather than instruction or the device of hint indication or element
Must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that new to this practicality
The restriction of type.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint
Relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can express or implicitly include one or more this feature.New in this practicality
In the description of type, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ",
" connect ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be can
Dismounting connects, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together,
Can also be indirectly connected to by intermediary, can be connection or two elements mutual of two element internals
Interactively.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in this utility model.
In this utility model, unless otherwise clearly defined and limited, fisrt feature is in second feature
On " " or D score can be that the first and second features directly contact, or the first and second features are passed through
Intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " on
Face " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level
Highly higher than second feature.Fisrt feature second feature " under ", " lower section " and " below "
Can be fisrt feature immediately below second feature or obliquely downward, or it is high to be merely representative of fisrt feature level
Degree is less than second feature.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ",
It is concrete that the description of " concrete example " or " some examples " etc. means to combine this embodiment or example describes
Feature, structure, material or feature are contained at least one embodiment of the present utility model or example.?
In this specification, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.
And, the specific features of description, structure, material or feature can be with one or more embodiments in office or show
Example combines in an appropriate manner.Additionally, in the case of the most conflicting, those skilled in the art can
Carry out with the feature of the different embodiments described in this specification or example and different embodiment or example
In conjunction with and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-mentioned reality
It is exemplary for executing example, it is impossible to be interpreted as that, to restriction of the present utility model, those of ordinary skill in the art exists
Above-described embodiment can be changed in the range of this utility model, revise, replace and modification.
Claims (8)
1. a waist Invasive lumbar fusion device, including main body and implantation block, it is characterised in that described main body includes
Integrated top, bottom and connecting portion, the upper surface on described top and the lower surface of bottom are provided with
Rake and described upper and lower from back to front are deformable member, described top, bottom and connection
Portion forms build-in cavities, and described build-in cavities end is provided with implantation block, and described build-in cavities head end is provided with
For fixing the spacing zone of described implantation block；
It is sliding that described implantation block includes that integrated width portion and narrow portion, both sides, described wide portion are respectively arranged with first
Lever and the second sliding bar, described build-in cavities the upper side and lower side is respectively arranged with and the first sliding bar and second
First chute of sliding bar cooperation and the second chute.
A kind of waist Invasive lumbar fusion device the most according to claim 1, it is characterised in that be empty in described
The most highly successively decrease in chamber.
A kind of waist Invasive lumbar fusion device the most according to claim 2, it is characterised in that described main body is
Substantially U-shaped structure.
4. according to a kind of waist Invasive lumbar fusion device described in any one of claim 1-3, it is characterised in that institute
The lower surface of the upper surface and bottom of stating the top of main body is provided with barb structure from back to front.
A kind of waist Invasive lumbar fusion device the most according to claim 1, it is characterised in that described connecting portion
In be provided with the through hole for promoting described implantation block to move.
A kind of waist Invasive lumbar fusion device the most according to claim 1, it is characterised in that described spacing zone
Shape identical with the outline of described implantation block.
A kind of waist Invasive lumbar fusion device the most according to claim 1, it is characterised in that described implantation block
The height of peak be set to h, the height of the front end peak of described main body is set to H, rear end peak
Highly being set to D, the distance between described h and H is L, then should meet following relation, and H is more than D, h
With H positive correlation.
A kind of waist Invasive lumbar fusion device the most according to claim 7, it is characterised in that described h and D
Between form angle and be set to α, then, α=2*TAN[0.5x (H-h)/L].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821359.5U CN205586119U (en) | 2015-10-21 | 2015-10-21 | Matched stack type waist interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821359.5U CN205586119U (en) | 2015-10-21 | 2015-10-21 | Matched stack type waist interbody fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205586119U true CN205586119U (en) | 2016-09-21 |
Family
ID=56926538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520821359.5U Active CN205586119U (en) | 2015-10-21 | 2015-10-21 | Matched stack type waist interbody fusion cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205586119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105232190A (en) * | 2015-10-21 | 2016-01-13 | 苏州锐进医疗科技有限公司 | Assembled lumbar interbody fusion cage |
-
2015
- 2015-10-21 CN CN201520821359.5U patent/CN205586119U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105232190A (en) * | 2015-10-21 | 2016-01-13 | 苏州锐进医疗科技有限公司 | Assembled lumbar interbody fusion cage |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |