CN109730813A - A kind of Invasive lumbar fusion device - Google Patents
A kind of Invasive lumbar fusion device Download PDFInfo
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- CN109730813A CN109730813A CN201910208681.3A CN201910208681A CN109730813A CN 109730813 A CN109730813 A CN 109730813A CN 201910208681 A CN201910208681 A CN 201910208681A CN 109730813 A CN109730813 A CN 109730813A
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- fusion device
- invasive lumbar
- lumbar fusion
- bone grafting
- bone
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- 230000004927 fusion Effects 0.000 title claims abstract description 106
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 90
- 208000010392 Bone Fractures Diseases 0.000 claims abstract description 39
- 239000007943 implant Substances 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000002513 implantation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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Abstract
The invention discloses a kind of Invasive lumbar fusion devices, it solves in existing Invasive lumbar fusion device placement process and needs firmly to be driven into, indwelling window face shakes out the problem of broken bone conduction of filling causes bone grafting to omit, including Invasive lumbar fusion device main body, Invasive lumbar fusion device main body includes preceding inlet side, it is pushed into end and runs through fusion device main body bone grafting chamber in the vertical direction, the upper bone grafting window and lower bone grafting window of bone grafting chamber are fixedly installed the confining bed of reticular structure, one side seal of bone grafting chamber, another side opening of bone grafting chamber is broken bone implant mouth, push-in end is closed by broken bone implant mouth, the confining bed of upper bone grafting window, the confining bed and bone grafting chamber of lower bone grafting window form the space for accommodating broken bone, it plugs together and connect in the middle part of push-in end and Invasive lumbar fusion device main body, and the two carries out plugging together locking by one-way locking structure.Broken bone is enclosed in Invasive lumbar fusion device after broken bone implant by the present invention using the above structure, can guarantee the integrality of broken bone, will not be with shaking off out in Invasive lumbar fusion device implantation.
Description
Technical field
The invention belongs to the field of medical instrument technology, and in particular to a kind of Invasive lumbar fusion device.
Background technique
Invasive lumbar fusion device depressurizes fixed Intervertebral fusion after being mainly used for discectomy, will subtract in Invasive lumbar fusion device
Crushing bone is filled in it, and autologous bone can increase fusion rate, it is therefore desirable to which autologous bone filling contact decompression vertebral bone face is being merged
Want the larger window of indwelling to meet bone grafting needs in device.
Setting for Invasive lumbar fusion device stays window not closed at present, is to allow the autologous bone of filling to contact vertebral bone up and down
Face guarantees syncretizing effect.But it needs firmly to be driven into during Invasive lumbar fusion device implantation is interpyramidal, exactly because indwelling window is out
Structure is put, therefore fills the broken influential point of bone and is shaked out from indwelling window, the autologous bone shaked out, which is fallen to the ground, will receive pollution, influence normally to make
With causing self in Invasive lumbar fusion device furthermore, it is possible to which the autologous bone shaken off during being driven into is not found by behaviour personnel
Bone is omitted, if finding after Invasive lumbar fusion device is implanted into centrum, is difficult to the autologous bone that will be missed and is reentered into intervertebral again to melt
In clutch, the normal recovery of postoperative patient will affect.Therefore, it is necessary to research and develop the new Invasive lumbar fusion device of one kind to solve above-mentioned ask
Topic.
Summary of the invention
The invention discloses a kind of Invasive lumbar fusion devices, solve in existing Invasive lumbar fusion device placement process and need firmly to hit
Enter, the broken influential point of bone of filling shakes off the problem of causing bone grafting to be omitted therewith.The confining bed being arranged by the window up and down in bone grafting chamber,
Broken bone is enclosed in Invasive lumbar fusion device, is put into bone grafting chamber from the side of fusion device by broken bone, and side is open after bone grafting
It is closed, during Invasive lumbar fusion device is firmly hit, broken bone is not in fall problem all in bone grafting chamber.
The present invention to achieve the above object, is achieved through the following technical solutions:
A kind of Invasive lumbar fusion device, it is characterised in that including Invasive lumbar fusion device main body, the Invasive lumbar fusion device body front part is to advance
End, the Invasive lumbar fusion device rear portion are push-in end, are provided with bone grafting chamber in the Invasive lumbar fusion device middle part, the bone grafting chamber is perpendicular
Histogram extends upward through fusion device main body, and the upper bone grafting window and lower bone grafting window of the bone grafting chamber, which are fixedly installed, prevents broken bone from falling
The confining bed fallen, the confining bed are reticular structure, and a side seal of the bone grafting chamber, another side opening of bone grafting chamber is broken bone
It is implanted into mouth, broken bone implant mouth is closed at the push-in end, the closing of the confining bed, lower bone grafting window of the upper bone grafting window
Layer and bone grafting chamber form the space for accommodating broken bone, the preceding inlet side and Invasive lumbar fusion device main body integral middle chemical conversion type, described to push away
Enter end and plug together with Invasive lumbar fusion device main body to connect, and the two carries out plugging together locking by one-way locking structure.
In upper water technical solution, it is convex that the one-way locking structure is included in the telescopic locking of push-in end outer surface setting
Key, setting and the locking groove to match with locking convex key in the intracavitary cavity wall of bone grafting, when Invasive lumbar fusion device master is inserted at push-in end
After in the middle part of body, locking convex key protrudes into locking groove.
In upper water technical solution, the locking convex key has inclined-plane, the inclined direction on the inclined-plane and inserting for push-in end
Enter contrary.
In upper water technical solution, the quantity at least two of the locking convex key, the corresponding lock of a locking convex key
Tight groove.
In upper water technical solution, the locking convex key is placed equidistant in push-in end outer surface.
In upper water technical solution, the internal chamber wall of the bone grafting chamber is additionally provided with the guide groove adaptable with locking convex key,
When being pushed into the middle part of end insertion Invasive lumbar fusion device main body, locking convex key is placed in guide groove.
In upper water technical solution, the upper and lower surfaces of the Invasive lumbar fusion device main body are provided with anti-skid structure.
In upper water technical solution, the anti-skid structure is several pawls, and the pawl direction and intervertebral fusion are inserted
Enter contrary.
In upper water technical solution, the pawl is arranged on the edge of Invasive lumbar fusion device main body.
Compared with prior art, the present invention having following advantageous effects:
It is intracavitary that broken bone is placed on bone grafting by Invasive lumbar fusion device of the invention, stays window not with open set of existing Invasive lumbar fusion device
Together, the confining bed of the lower window reticular structure of the upper window of bone grafting chamber is closed, that is, forms closed structure, and broken
Bone grafting chamber is closed by one-way locking structure after bone implant, can be avoided occur Invasive lumbar fusion device firmly be driven between centrum
Broken bone is from bone grafting intracavitary the phenomenon that shaking out.
Bone grafting chamber is closed with confining bed in Invasive lumbar fusion device of the invention, and confining bed uses absorbable suture
Broken bone, can either be placed on that bone grafting is intracavitary not to be shaken off by reticular structure made of line mutually weaves in this way, and reticular structure uses
Material after being washed by human body will not influence the fusion of autologous bone.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the schematic diagram of the section structure of the present invention；
Fig. 3 is push-in end the schematic diagram of the section structure of the invention；
Fig. 4 is the schematic diagram of the section structure of Invasive lumbar fusion device main body and preceding inlet side of the invention.
Wherein: 1, Invasive lumbar fusion device main body, 2, bone grafting chamber, 3, confining bed, 4, broken bone implant mouth, 5, pawl, 6, preceding inlet side,
7, end, 8, locking convex key, 9, locking groove, 10, guide groove are pushed into.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
A kind of Invasive lumbar fusion device as depicted in figs. 1 and 2, including Invasive lumbar fusion device main body.Before Invasive lumbar fusion device main body
Portion is preceding inlet side, and rear portion is push-in end, and middle part is provided with bone grafting chamber.
Preceding inlet side petition warhead structure, the structure are for the ease of between insertion vertebra.Preceding inlet side and Invasive lumbar fusion device main body
Integral middle chemical conversion type, can increase the intensity of Invasive lumbar fusion device, avoid the occurrence of preceding inlet side by instantaneous force is excessive cause before
The phenomenon that end is separated with Invasive lumbar fusion device main body.
Bone grafting chamber runs through Invasive lumbar fusion device main body in the vertical direction, different from existing bone grafting chamber, existing fusion device
Bone grafting chamber is Open architecture, i.e., upper accent and lower accent are not closed, and is needed when being put into broken bone first with baffle under
Accent is closed, and otherwise the broken influential point of bone is directly fallen, and can not be laid in fusion device, again be taken out baffle after placement
From it is cumbersome will cause surgical procedure in this way, if broken bone is slightly mispositioned in placement process and also can directly fall for baffle.Therefore, it plants
Bone grafting window is fixedly installed confining bed in bone cavity, as shown in figure 4, on the one hand sealant is used to prevent broken bone from falling, another party
Face can't influence the fusion rate of broken bone, therefore confining bed is reticular structure, and by operation suture thread absorbed by the body
Mutually weave.Reticular structure can the bottom (descending bone grafting window) to bone grafting chamber close, broken bone is put into bone grafting chamber
After will not directly go out from bottom dropped out, and be implanted into after Invasive lumbar fusion device do not need to carry out other behaviour to the sealant of bottom
Make, reticular structure can be directly absorbed by the body, and will not influence the fusion of broken bone.
Broken bone be put into Invasive lumbar fusion device bone grafting it is intracavitary after, although lower bone grafting window is enclosed construction, by vertebra
Between fusion device need firmly to be driven into when being placed between centrum, broken bone is easy for shaking off out from upper accent, influences operation effect
Fruit.Therefore, upper bone grafting window is similarly provided with sealant, the confining bed and bone grafting chamber of so upper and lower bone grafting window of bone grafting chamber
It is formed the enclosure space for accommodating broken bone, broken bone, which will not fall, drops out Invasive lumbar fusion device.
Since the upper and lower bone grafting window of bone grafting chamber is closed by the confining bed of reticular structure, for convenience by autoclase bone
It is intracavitary to be put into bone grafting, one side seal of bone grafting chamber, and the sealed sides are adjacent with preceding inlet side.The bone grafting chamber other side is opening knot
Structure, the hatch frame are broken bone implant mouth, and broken bone is intracavitary by the bone grafting that broken bone implant mouth is placed on Invasive lumbar fusion device.Broken bone
It after implantation, needs to close broken bone implant mouth, therefore, by the push-in end at rear portion to the intracorporal bone grafting of Invasive lumbar fusion device master
Chamber is closed, and push-in end and Invasive lumbar fusion device main body are separable.Specifically, being carried out in the middle part of push-in end and Invasive lumbar fusion device main body
Connection is plugged together, by push-in end insertion Invasive lumbar fusion device main body, bone grafting chamber is just pushed into end and is closed.
When between Invasive lumbar fusion device insertion centrum, biggish instantaneous force will receive, if push-in end and Invasive lumbar fusion device master
Body plug together it is unstable, then appear in push-on process be pushed into end separated with Invasive lumbar fusion device main body, the broken influential point of bone is fallen.Cause
This, is pushed into the middle part of end and Invasive lumbar fusion device main body and carries out plugging together locking by one-way locking structure.As shown in Figure 3 and Figure 4, it locks
Structure include locking convex key and locking groove, locking convex key it is scalable and push-in end outer surface on Invasive lumbar fusion device master
The position setting that body plugs together, locking groove match with locking convex key and are arranged in the intracavitary cavity wall of bone grafting, when push-in end is inserted
After entering Invasive lumbar fusion device main body, locking convex key is protruded into groove.It locks and is provided with bullet between the bottom of convex key and push-in end surfaces
Property component, compressed spring can be used in elastomeric element, and flexible convex key is when being pushed into end and Invasive lumbar fusion device main body is plugged together, locking
Convex key is under pressure and the pressure compresses compressed spring, at this time spring store elastic force, when locking convex key reaches corresponding
Locking groove location when, the pressure that receives of locking convex key disappears, and the elastic force of compressed spring is released, at the beginning of locking convex key is just restored
Beginning state and by automatically sprung into locking groove in.Locking convex key also has inclined-plane, inclined direction and the push-in end on inclined-plane
Direction of insertion conversely, because inclined-plane presence, locking convex key be easier to be compressed.Locking convex key is placed equidistant on push-in end, and
And the quantity at least two of convex key is locked, the corresponding locking groove of a locking convex key.Locking convex key enters locking groove
Afterwards, it since locking groove is equivalent to blind hole structure, can not be compressed in Invasive lumbar fusion device body exterior locking convex key, therefore can
To realize one-way locking.
When locking convex key in push-in end insertion Invasive lumbar fusion device main body, it is accurately protruded into for the ease of locking convex key
In corresponding locking groove, the internal chamber wall of bone grafting chamber is additionally provided with the guide groove adaptable with locking convex key.It is inserted at push-in end
During Invasive lumbar fusion device main body, locking convex key is placed on always in corresponding guide groove.
The implantation process of Invasive lumbar fusion device are as follows: the broken bone that is implanted into will be needed to be put into bone grafting first intracavitary, and then will be pushed into end
Locking convex key be placed in the intracorporal guide groove of Invasive lumbar fusion device master, and close to advance extreme direction push-in make be pushed into end with
Invasive lumbar fusion device main body is plugged together, and after locking convex key to big locking groove location, locking convex key, which protrudes into, locks groove to plugging together
Push-in end and Invasive lumbar fusion device main body afterwards carries out one-way locking, that is, completes the implantation of broken bone, be driven by Invasive lumbar fusion device
The centrum position for needing to be implanted into.
Invasive lumbar fusion device after implantation, to prevent Invasive lumbar fusion device from pitching between centrum, in the upper of Invasive lumbar fusion device main body
Surface and lower surface are additionally provided with anti-skid structure.Anti-skid structure is pawl, and pawl is arranged on the edge of Invasive lumbar fusion device main body,
Strip structure is formed, and the direction of pawl is opposite with the direction of insertion of Invasive lumbar fusion device.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (9)
1. a kind of Invasive lumbar fusion device, it is characterised in that including Invasive lumbar fusion device main body, before the Invasive lumbar fusion device body front part is
Inlet side, the Invasive lumbar fusion device rear portion are push-in end, are provided with bone grafting chamber in the Invasive lumbar fusion device middle part, the bone grafting chamber exists
Run through fusion device main body on vertical direction, the upper bone grafting window and lower bone grafting window of the bone grafting chamber, which are fixedly installed, prevents broken bone
The confining bed fallen, the confining bed are reticular structure, and a side seal of the bone grafting chamber, another side opening of bone grafting chamber is broken
Broken bone implant mouth is closed at bone implant mouth, the push-in end, the envelope of the confining bed of the upper bone grafting window, lower bone grafting window
It closes layer and bone grafting chamber forms the space for accommodating broken bone, the preceding inlet side and Invasive lumbar fusion device main body integral middle chemical conversion type, it is described
It plugs together and connect in the middle part of push-in end and Invasive lumbar fusion device main body, and the two carries out plugging together locking by one-way locking structure.
2. a kind of Invasive lumbar fusion device according to claim 1, it is characterised in that the one-way locking structure is included in push-in
It holds outer surface that telescopic locking convex key is set, be arranged in the intracavitary cavity wall of bone grafting and is recessed with the locking that convex key matches is locked
Slot, after being pushed into end insertion Invasive lumbar fusion device main body, locking convex key protrudes into locking groove.
3. a kind of Invasive lumbar fusion device according to claim 2, it is characterised in that the locking convex key has inclined-plane, described oblique
The inclined direction in face is opposite with the push-in direction of insertion at end.
4. a kind of Invasive lumbar fusion device according to claim 2, it is characterised in that the quantity of the locking convex key is at least two
It is a, the corresponding locking groove of a locking convex key.
5. a kind of Invasive lumbar fusion device according to claim 4, it is characterised in that the locking convex key is in push-in end outer surface
It is placed equidistant with.
6. any Invasive lumbar fusion device according to claim 2-5, it is characterised in that the internal chamber wall of the bone grafting chamber is also
It is provided with the guide groove adaptable with locking convex key, when being pushed into the middle part of end insertion Invasive lumbar fusion device main body, locking convex key is placed
In guide groove.
7. a kind of Invasive lumbar fusion device according to claim 1, it is characterised in that upper in the middle part of the Invasive lumbar fusion device main body
Surface and lower surface are provided with anti-skid structure.
8. a kind of Invasive lumbar fusion device according to claim 7, it is characterised in that the anti-skid structure is several pawls, described
Pawl direction is opposite with intervertebral fusion direction of insertion.
9. a kind of Invasive lumbar fusion device according to claim 8, it is characterised in that the pawl is in Invasive lumbar fusion device main body
It is arranged on edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208681.3A CN109730813A (en) | 2019-03-19 | 2019-03-19 | A kind of Invasive lumbar fusion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910208681.3A CN109730813A (en) | 2019-03-19 | 2019-03-19 | A kind of Invasive lumbar fusion device |
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| CN201910208681.3A Pending CN109730813A (en) | 2019-03-19 | 2019-03-19 | A kind of Invasive lumbar fusion device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110063820A (en) * | 2019-06-03 | 2019-07-30 | 华中科技大学同济医学院附属协和医院 | With active 3D printing Invasive lumbar fusion device of interface Bone Ingrowth and preparation method thereof |
| CN111494064A (en) * | 2020-06-08 | 2020-08-07 | 卿培东 | Assembled cervical vertebra interbody fusion cage |
| CN113171211A (en) * | 2021-06-02 | 2021-07-27 | 上海凯利泰医疗科技股份有限公司 | A fusion device |
| CN114424988A (en) * | 2020-10-29 | 2022-05-03 | 江苏国立医疗器械有限公司 | Intervertebral fusion device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20190510 |