CN208974224U - A kind of locking spinal fusion device - Google Patents
A kind of locking spinal fusion device Download PDFInfo
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- CN208974224U CN208974224U CN201821430354.XU CN201821430354U CN208974224U CN 208974224 U CN208974224 U CN 208974224U CN 201821430354 U CN201821430354 U CN 201821430354U CN 208974224 U CN208974224 U CN 208974224U
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- fusion device
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Abstract
The utility model relates to medical instruments fields, and in particular to a kind of locking spinal fusion device.Including fusion device ontology and deformable connecting plate, the connecting plate is located at the outside of the fusion device ontology, the upper and lower ends of the connecting plate are provided with lock hole, the lock hole of the connecting plate upper end is higher than the upper surface of fusion device ontology, the lock hole of the connecting plate lower end is lower than the lower surface of the fusion device ontology, is equipped with lock screw in the lock hole.By setting connecting plate come with fusion device body fits, when use, fusion device ontology first can be implanted into intervertenral space, then connecting plate is placed, the fixation of lock screw realization and upper hypocentrum is screwed in the lock hole of connecting plate, it is deformed finally by connecting plate, to drive upper hypocentrum to pressurize fusion device ontology by lock screw.The technical issues of solving the existing pressurization that cannot achieve to fusion device in the prior art, guaranteeing the stability of the connection between fusion device and centrum.
Description
Technical field
The utility model relates to medical instruments fields, and in particular to a kind of locking spinal fusion device.
Background technique
The protrasion of the lumbar intervertebral disci caused by lumbar retrogression, lumbar spinal stenosis, Lumbar segmental instability, lumbar spondyloiisthesis etc.
Disease is clinically very common.And lumbar retrogression can cause pain in the loins and lower limb pain numb, intermittent claudication, even
The clinical symptoms of stool and urine and sex dysfunction seriously affect the life and health and quality of life of patient.Lancet magazine according to
World's Disease Spectrum data analysis shows that: pain in the loins be Chinese 10 greatly burden property disease first of, from nineteen ninety to 2010 20
Nian Lai, pain in the loins are always the first cause of Chinese's disability, are caused to personal, family and entire Chinese society great
Economy and society burden.
Lumbar spinal fusion is the current treatment most common mode of lumbar degenerative disease, develops existing one-hundred-year history.Mesh
Preceding lumbar spinal fusion is all made of fusion device and steel plate combination uses, and fusion device itself does not have lock function, passes through fusion device
Cooperate steel plate to use, although there is certain locking effect to fusion device, cannot achieve the pressurization to fusion device, i.e.,
The stability of the connection between fusion device and centrum is not can guarantee.
Utility model content
In order to solve the existing pressurization that cannot achieve to fusion device in the prior art, guarantee fusion device and centrum
Between connection stability the technical issues of, the utility model proposes a kind of locking spinal fusion devices, solve above-mentioned technology
Problem, the technical solution of the utility model are as follows:
A kind of locking spinal fusion device, including fusion device ontology and deformable connecting plate, the connecting plate are located at described
On the outside of one end of fusion device ontology, the upper and lower ends of the connecting plate are provided with lock hole, the locking of the connecting plate upper end
Hole is higher than the upper surface of fusion device ontology, and the lock hole of the connecting plate lower end is lower than the lower surface of the fusion device ontology, institute
It states and lock screw is installed in lock hole.
By setting connecting plate come with fusion device body fits, in use, can first by fusion device ontology be implanted into intervertenral space, so
After place connecting plate, screwed in the lock hole of connecting plate lock screw realize with the fixation of upper hypocentrum, finally by connection
Plate deformation pressurizes to fusion device ontology to be driven by lock screw and go up hypocentrum, ensure that fusion device and centrum it
Between connection stability.
Further, the fusion device ontology is square frame structure, and the length of the fusion device ontology is 40-55mm,
The height of the fusion device ontology is 9-17mm, is provided at least two bone grafting windows in the fusion device ontology.
Further, anti-skid structure is provided in the upper and lower surfaces of the fusion device ontology.
Further, X-ray marker is provided on the fusion device ontology, the X-ray marker is arranged in fusion device sheet
The other end of the separate lock hole at the middle part or fusion device ontology of body.
Further, the fusion device ontology is provided with threaded hole, the fusion device sheet close to one end of the connecting plate
Side fusion hole is provided on the side wall of body.
Further, the connecting plate includes two symmetrically arranged connections branch, the lock hole include upper lock hole with
Lower lock hole, the upper end of two connection branch are connected with each other and are provided with lock hole, the lower end phase of two connection branch
It connects and is provided with lower lock hole.
Further, it assumes diamond in shape in the middle part of the connecting plate, the middle part formation diamond shape through-hole of two connection branch, two
The two sides connection Zhi Kexiang dilatating and deformable.
Further, the width at the middle part of the connecting plate propped up with a thickness of 1.8mm, the connection is 1.6mm.
Further, the axis of the lock hole is parallel to the length direction of the fusion device ontology.
Further, the lock screw includes nail rod, connecting rod and the head of a nail, is provided with bone thread and bone in the nail rod
Self tapping slot, the major diameter of the screw thread are 4.0mm, and the outer surface of the connecting rod is smooth surface, and the outer surface of the head of a nail is
Spherical surface.
Based on above-mentioned technical solution, technical effect achieved by the utility model are as follows:
1. the locking spinal fusion device of the utility model, by setting connecting plate come with fusion device body fits, in use,
Fusion device ontology first can be implanted into intervertenral space, then place connecting plate, lock screw is screwed in the lock hole of connecting plate and is realized
It with the fixation of upper hypocentrum, is deformed finally by connecting plate, to drive upper hypocentrum to fusion device ontology by lock screw
It pressurizes, ensure that the stability of the connection between fusion device and centrum, can also reduce the displacement of fusion device ontology, abjection wind
Danger；
2. the locking spinal fusion device of the utility model, be provided with bone grafting window in fusion device ontology, facilitate accommodate autologous bone,
Allograph bone or artificial bone；Be provided with anti-skid structure in the upper and lower surface of fusion device ontology, anti-skid structure can increase fusion device with
Contact area between centrum increases the frictional force between fusion device and centrum, makes fusion device fixing-stable, prevent fusion device from
Centrum skids off, and achievees the purpose that fusion；The side of fusion device ontology is provided with side fusion hole, facilitates and realizes multi-direction fusion；
X-ray marker is provided on fusion device ontology, for developing in art, to determine the position of fusion device；It is also set on fusion device ontology
It is equipped with threaded hole, the threaded hole with implanting device for connecting；
3. the locking spinal fusion device of the utility model, specific design of the setting by the structure to connecting plate, setting company
Fishplate bar includes two symmetrically arranged connections branch, and the middle part of connecting plate is with diamond shape through-hole, outside also assume diamond in shape shape, so
Deformation process only needs to pull the apex in the middle part of two connection branch, puts forth effort to stablize, and can realize the steady deformation of connecting plate, in turn
It realizes the lock screw that connecting plate steadily pulls connecting plate upper and lower ends to install, realizes the pressurization to fusion device ontology.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the locking spinal fusion device of the utility model；
Fig. 2 is the structural schematic diagram of the fusion device ontology of the utility model；
Fig. 3 is the structural schematic diagram of the connecting plate of the utility model；
Fig. 4 is the structural schematic diagram of the lock screw of the utility model；
In figure: 1- fusion device ontology；11- bone grafting window；12- threaded hole；13- anti-skid structure；Merge hole in the side 14-；15-X
Signal part；2- connecting plate；21- connection branch；22- lock hole；23- diamond shape through-hole；3- lock screw；31- nail rod；311- murices
Line；312- bone self tapping slot；32- connecting rod；The 33- head of a nail.
Specific embodiment
The content of the utility model is further described with reference to the accompanying drawings of the specification.
As shown in Figs 1-4, a kind of locking spinal fusion device, including fusion device ontology 1 and connecting plate are present embodiments provided
2, connecting plate 2 is located at the outside of fusion device ontology 1, and the lock hole 22 for installing lock screw 3 is provided on connecting plate 2.
Fusion device ontology 1 is square frame structure, it is preferable that fusion device ontology 1 is rectangle frame structure, and length is
40-55mm is highly 9-17mm.At least two bone grafting windows 11 are provided in fusion device ontology 1, for accommodating autologous bone, allosome
Bone or artificial bone, the number of bone grafting window 11 is two in the present embodiment.Threaded hole 12 is additionally provided on fusion device ontology 1, it is convenient
It is connect with implanting device.Preferably, threaded hole 12 is located on one end of the short side of the fusion device ontology 1 of rectangle framework structure, spiral shell
The axis of pit 12 is parallel with the length direction of fusion device ontology 1；It is further preferred that threaded hole 12 is located at fusion device ontology 1
Short side one end middle part.
Anti-skid structure 13 is provided in the upper and lower surfaces of fusion device ontology 1, it is preferable that anti-skid structure 13 is anti-skidding
Anti-slop serrations are distributed in the upper and lower surfaces of fusion device ontology 1 in tooth, by setting anti-slop serrations increase fusion device and centrum it
Between contact area, increase the frictional force between fusion device and centrum, make fusion device fixing-stable, prevent fusion device sliding from centrum
Out, achieve the purpose that fusion.Side fusion hole 14 is provided on the side wall of fusion device ontology 1, it is preferable that side fusion hole 14 is
It is multiple, on the side wall for the long side that multiple side fusions hole 14 is distributed in fusion device ontology 1, facilitates and realize multi-direction fusion.
X-ray marker 15 is additionally provided on fusion device ontology 1, X-ray marker 15 facilitates determining fusion for developing in art
Device position.Specifically, it is provided with mounting hole on fusion device ontology 1, X-ray marker 15 is equipped in mounting hole.Preferably, fusion device
Multiple mounting holes are provided on ontology 1, X-ray marker 15 is corresponding with the quantity of mounting hole.It is further preferred that mounting hole setting exists
The other end of the threaded hole 12 at the middle part and fusion device ontology 1 of fusion device ontology 1, X-ray marker 15 are that X-ray marks stick, can be square
Just it is inserted into mounting hole.The number that X-ray marker 15 is arranged in the present embodiment is 3.
Connecting plate 2 is located at the outside of fusion device ontology 1, and is arranged close to the 12 place end of threaded hole of fusion device ontology 1.Even
Fishplate bar 2 has the diamond shaped of lock hole 22 in both ends, the length direction of connecting plate 2 perpendicular to fusion device ontology 1 length direction,
Connecting plate 2 includes two symmetrically arranged connection branch 21, and the upper end of two connection branch 21 is connected with each other, under two connection branch 21
End is connected with each other, and the middle part of two connection branch 21 separates and forms diamond shape through-hole 23.Lock hole 22 includes upper lock hole and lower lock
Determine hole, the upper end of connecting plate 2, i.e., the upper end junction of two connection branch 21 is arranged in upper lock hole；Lower lock hole setting is even
The lower end of fishplate bar 2, i.e., the lower end junction of two connection branch 21.Preferably, upper lock hole is higher than the upper table of fusion device ontology 1
Face, lower lock hole are lower than the lower surface of fusion device ontology 1.It is further preferred that fusion device ontology 1 is located at upper lock hole and lower lock
On the middle line for determining the line of centres in hole.Preferably, connection branch 21 can be to two outside dilatating and deformables；Specifically, it can pull out
The vertex at 21 middle part of connection branch, makes connection branch 21 to two sides dilatating and deformable, the length of connecting plate 2 is made to shorten；Preferably, connecting plate
2 with a thickness of 1.8mm, the width at the middle part of connection branch 21 is 1.6mm.Preferably, upper lock hole and lower lock hole are respectively provided with 1
It is a, the length direction of the axis of upper lock hole and lower lock hole each parallel to fusion device ontology 1；It is further preferred that upper locking
The internal diameter of hole and lower lock hole is 4.5mm.
Preferably, the diamond shape through-hole 23 on connecting plate 2 is aligned with the threaded hole 12 on fusion device ontology 1, and tool is facilitated to wear
Diamond shape through-hole 23 is crossed to connect with the threaded hole 12 on fusion device ontology 1.
Lock screw 3 is mounted in lock hole 22, and lock screw 3 includes nail rod 31, connecting rod 22 and the head of a nail 23, nail rod 31
Outer surface be provided with bone thread 311, the nail rod 31 with bone thread 311 has the function of self tapping from boring, it is preferable that bone thread
311 be cancellous threads, Major Diam 4.0mm.It is further preferred that being provided with bone self tapping slot 312 in nail rod 31, preferably
One end of the separate connecting rod 32 of nail rod 31 is arranged in ground, bone self tapping slot 312, and the extending direction of bone self tapping slot 312 is parallel to nail
The axis of bar 31.Connecting rod 32 is cylindrical, and the outer surface of connecting rod 32 is smooth outer surface；The head of a nail 33 is hemispherical, the head of a nail
33 outer surface is smooth sphere.
Preferably, fusion device ontology 1 is made of the PEEK material of light-permeable；Connecting plate 2 is made of pure titanium material；Locking
Screw 3 is integrally formed；Lock screw 3 is made of titanium alloy, preferably TC4ELI titanium alloy.
Based on above structure, the application method of the locking spinal fusion device of the utility model are as follows: firstly, by autologous bone or different
Body bone or artificial bone fill the bone grafting window 11 of full fusion device ontology 1, and filled fusion device ontology 1 is implanted into intervertenral space；Then,
Connecting plate 2 is placed, lock screw 3 is screwed in the lock hole 22 of 2 upper and lower ends of connecting plate；Finally, by two companies of connecting plate 2
Branch 21 is connect to two sides dilatating and deformable, the lower-upper length of connecting plate 2 becomes smaller, and drives 3 direction of lock screw in lock hole 22 up and down
Fusion device ontology 1 moves, and lock screw 3 drives upper centrum and hypocentrum to pressurize fusion device ontology 1.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment can also not depart from the utility model within the knowledge of a person skilled in the art
Objective under the premise of make a variety of changes.
Claims (10)
1. a kind of locking spinal fusion device, which is characterized in that described including fusion device ontology (1) and deformable connecting plate (2)
Connecting plate (2) is located on the outside of one end of the fusion device ontology (1), and the upper and lower ends of the connecting plate (2) are provided with locking
Hole (22), the lock hole (22) of connecting plate (2) upper end are higher than the upper surface of fusion device ontology (1), under the connecting plate (2)
The lock hole (22) at end is lower than the lower surface of the fusion device ontology (1), is equipped with lock screw in the lock hole (22)
(3)。
2. a kind of locking spinal fusion device as described in claim 1, which is characterized in that the fusion device ontology (1) is square
Frame structure, the length of the fusion device ontology (1) are 40-55mm, and the height of the fusion device ontology (1) is 9-17mm, institute
It states in fusion device ontology (1) and is provided at least two bone grafting windows (11).
3. a kind of locking spinal fusion device as described in claim 1, which is characterized in that the upper table of the fusion device ontology (1)
Anti-skid structure (13) are provided on face and lower surface.
4. a kind of locking spinal fusion device as described in claim 1, which is characterized in that be arranged on the fusion device ontology (1)
Have X-ray marker (15), the X-ray marker (15) setting fusion device ontology (1) middle part or fusion device ontology (1) it is remote
The other end from lock hole (22).
5. a kind of locking spinal fusion device as described in claim 1, which is characterized in that the fusion device ontology (1) is close to institute
The one end for stating connecting plate (2) is provided with threaded hole (12), and side fusion hole is provided on the side wall of the fusion device ontology (1)
(14)。
6. a kind of locking spinal fusion device as described in any one in claim 1-5, which is characterized in that connecting plate (2) packet
Two symmetrically arranged connection branch (21) are included, the lock hole (22) includes upper lock hole and lower lock hole, two connections
The upper end of branch (21) is connected with each other and is provided with lock hole, and the lower end of two connection branch (21) is connected and is provided with down
Lock hole.
7. a kind of locking spinal fusion device as claimed in claim 6, which is characterized in that the middle part of the connecting plate (2) is in water chestnut
Shape, the middle part of two connection branch (21) form diamond shape through-hole, and two connection branch (21) can be to two sides dilatating and deformable.
8. a kind of locking spinal fusion device as claimed in claim 7, which is characterized in that the connecting plate (2) with a thickness of
1.8mm, the width at the middle part of the connection branch (21) are 1.6mm.
9. a kind of locking spinal fusion device as claimed in claim 6, which is characterized in that the axis of the lock hole (22) is parallel
In the length direction of the fusion device ontology (1).
10. a kind of locking spinal fusion device as described in claim 1, which is characterized in that the lock screw (3) includes nail rod
(31), connecting rod (32) and the head of a nail (33) are provided with bone thread (311) and bone self tapping slot (312) on the nail rod (31), described
The major diameter of bone thread (311) is 4.0mm, and the outer surface of the connecting rod (32) is smooth surface, the appearance of the head of a nail (33)
Face is spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430354.XU CN208974224U (en) | 2018-08-31 | 2018-08-31 | A kind of locking spinal fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821430354.XU CN208974224U (en) | 2018-08-31 | 2018-08-31 | A kind of locking spinal fusion device |
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| Publication Number | Publication Date |
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| CN208974224U true CN208974224U (en) | 2019-06-14 |
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ID=66783052
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821430354.XU Active CN208974224U (en) | 2018-08-31 | 2018-08-31 | A kind of locking spinal fusion device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112535557A (en) * | 2020-12-21 | 2021-03-23 | 大泗医疗生物科技有限公司 | Fusion cage |
| CN114099090A (en) * | 2020-09-01 | 2022-03-01 | 上海三友医疗器械股份有限公司 | Fusion cage structure |
-
2018
- 2018-08-31 CN CN201821430354.XU patent/CN208974224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114099090A (en) * | 2020-09-01 | 2022-03-01 | 上海三友医疗器械股份有限公司 | Fusion cage structure |
| CN112535557A (en) * | 2020-12-21 | 2021-03-23 | 大泗医疗生物科技有限公司 | Fusion cage |
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