CN104856785B - A kind of Invasive lumbar fusion device - Google Patents
A kind of Invasive lumbar fusion device Download PDFInfo
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- CN104856785B CN104856785B CN201510291682.0A CN201510291682A CN104856785B CN 104856785 B CN104856785 B CN 104856785B CN 201510291682 A CN201510291682 A CN 201510291682A CN 104856785 B CN104856785 B CN 104856785B
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- invasive lumbar
- lumbar fusion
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- 230000004927 fusion Effects 0.000 title claims abstract description 84
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000002513 implantation Methods 0.000 abstract description 12
- 210000000988 bone and bone Anatomy 0.000 description 15
- 239000008280 blood Substances 0.000 description 9
- 210000004369 blood Anatomy 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 206010061246 Intervertebral disc degeneration Diseases 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 208000004296 neuralgia Diseases 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 210000001562 sternum Anatomy 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
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Abstract
The present invention relates to a kind of Invasive lumbar fusion device, including upper surface, lower surface, side wall, side wall includes left side wall, right side wall, antetheca and rear wall.The Invasive lumbar fusion device of the present invention can provide initial stage and long-time stability after implantation, Invasive lumbar fusion device is not exited from intervertebral or mobile.
Description
Technical field
The present invention relates to a kind of intervertebral implant, more particularly to a kind of fusion device.
Background technology
The upper part of the body, head of the vertebra except supporting human body, and protected with rib, breastbone outside internal organ, it is most important that, ridge
The nervous centralis for passing on information is installed with post, however, with advancing age, backbone can slowly degenerate, most common of which disease
One of shape is exactly disc degeneration, and disc degeneration can cause interpyramidal stability to reduce, or is made because losing moisture with elasticity
It is narrow into interverbebral disc attenuating, intervertebral, various symptoms, including neuralgia or functional disorder are brought to sufferer.
The method of general therapeutic disc degeneration is to utilize interbody fusion, and the principle of interbody fusion is will to degenerate or bad
Dead interverbebral disc is peeled off, interpyramidal for strutting simultaneously correcting then by intervertebral of the Invasive lumbar fusion device using operation implantation patient
Distance, finally intervertebral fusion is that vertebra internode is more consolidated, but be due to that before fusion, Invasive lumbar fusion device exists together above and below order
During the work such as backbone does that layback is bent over, easily skidded off from intervertebral, clinical practice is found, interbody fusion cage loosen skid off, centrum
Between do not merge, be implanted into sinking etc. complication, especially binodal section intervertebral fusion, be used alone interbody fusion cage loosen
The ratio skidded off reaches 8.35%, so needs one are more stably maintained at the fusion device of intervertebral after being implanted into.
And in order that patient's freely activity faster, it is desirable to The faster the better for the speed of intervertebral fusion, and existing intervertebral melts
Clutch is most to be provided with through hole in upper and lower surface in design, and in side, wall is provided with through hole, and through hole is implanted into bone graft, with it is upper
Hypocentrum is merged, and through hole is the increase blood fortune in order to be connected with bone tissue, but after interverbebral disc stripping, surrounding bone group
Interverbebral disc side can not be contacted by knitting, and the fibrous ring of interverbebral disc periphery inherently lacks blood fortune, even if so Invasive lumbar fusion device
Side wall can not be supplied to the enough blood fortune of the bone graft inside Invasive lumbar fusion device well provided with through hole, influence what it was merged
Speed.
The content of the invention
It is an object of the invention to propose one kind can keep stably being implanted in intervertebral, and can provide blood transport promote vertebra
Between the fusion device that faster merges.
To achieve these goals, the present invention uses following concrete technical scheme：
A kind of Invasive lumbar fusion device, including upper surface, lower surface, side wall, have through hole, its feature exists through upper and lower surface
In side wall includes left side wall, right side wall, antetheca and rear wall, and the cross section of four side wall formation is trapezoidal.
Further, the trapezoidal top length of side is 1/2nd of the following length of side, and four trapezoidal angles are propped up to be circular
Support face.
Further, there is dentation or channel form projection in the upper and lower surface, at least one spine is additionally provided with.
Further, the upper and lower surface of the Invasive lumbar fusion device corresponds to where at least one trapezoidal circular support face
Position is provided with least one spine.
Further, there is passage, the inwall of passage and Invasive lumbar fusion device is communicated in the spine.
Further, the antetheca and rear wall are provided with hole, and a rotatable shaft is arranged on Invasive lumbar fusion device antetheca with after
Wall.
Further, external screw thread is provided with before and after the rotatable shaft, provided with interior in the hole of Invasive lumbar fusion device antetheca and rear wall
Screw thread, internal thread and external screw thread can coordinate rotation, and the center section of rotatable shaft is non-circular.
Further, the non-circular section of the rotatable shaft, which coordinates, has been set with blade structure, and blade structure can be with rotatable
The rotation of axle and rotate.
Further, the blade that the blade structure is set provided with two reverse symmetries, blade side is blade part
Point, opposite side is thicker knife back part.
Further, the side of the blade is provided with the groove that depth differs, and the trend of groove is parallel to two blades
Direction.
The Invasive lumbar fusion device of the present invention, can both be used to cervical fusion cage, it can also be used to Thoracolumbar disk Invasive lumbar fusion device,
By being implanted into fusion device, vertebra is set to recover original height, and two adjacent vertebra sections are fused into an entirety.
Beneficial effects of the present invention：
（1）The Invasive lumbar fusion device of the present invention is provided with four circular supporting surfaces on four angles, so in Invasive lumbar fusion device
After implantation, pressure is mainly consequently exerted on this four angles, and this four angles are the maximum region of thickness, is consolidated so forming one
Support, prevent Invasive lumbar fusion device compressed or sink.
（2）The Invasive lumbar fusion device of the present invention is additionally provided with spine on circular support face, and spine protrudes from upper and lower surface, from
And can penetrate deeper under stress in hypocentrum, there is provided intervertebral for the movement of the aspect of obstruction Invasive lumbar fusion device all around
The stability of fusion device implantation.
（3）There is passage inside the spine that the Invasive lumbar fusion device of the present invention is set on circular support face, spine, passage is always
The blood fortune being communicated in Invasive lumbar fusion device inwall, such centrum can be entered in the bone graft inside Invasive lumbar fusion device by spine,
Promote bone graft and the up and down speed of vertebral fusion.
（4）The Invasive lumbar fusion device of the present invention still further comprises the blade of hypocentrum in rotatable piercing, and blade is in intervertebral
, can not only be by the way that there is provided the ditch set in implantation stability, and blade in the upper hypocentrum of the deep piercing of rotation after fusion device implantation
Groove, can transport the blood in centrum and be entered by groove in the bone graft inside Invasive lumbar fusion device, promote bone graft and up and down vertebra
The speed of body fusion.
Brief description of the drawings
Fig. 1 is the schematic diagram of Invasive lumbar fusion device of the present invention；
Fig. 2 is the schematic top plan view of Invasive lumbar fusion device of the present invention；
Fig. 3 is the schematic diagram of the passage of Invasive lumbar fusion device of the present invention；
Fig. 4 is the schematic diagram of blade structure of the present invention；
Fig. 5 is the schematic diagram of Invasive lumbar fusion device when blade structure of the present invention is kept flat；
Fig. 6 is the schematic diagram of Invasive lumbar fusion device when blade structure of the present invention is holded up.
Embodiment
The Invasive lumbar fusion device of the present invention is described in further detail below by specific embodiment.
Invasive lumbar fusion device as described in Figure 1, is that titanium alloy or PEEK materials make, including upper surface 1, lower surface 2, company
The side wall 3 of logical upper and lower surface, has a through hole 4 through upper and lower surface, and the area of through hole 4 is no less than fusion device up/down surface
The 60% of surface area, for implantable graft bone.
Projection 5 is provided with the upper surface 1 of fusion device and lower surface 2, projection 5 can be dentation or taper, tooth
The gradient of the two lateral tooth flanks formation of shape can symmetrically can also be asymmetric.
The side wall 3 of Invasive lumbar fusion device includes left side wall 32, right side wall 33, antetheca 34 and rear wall 35.As shown in Fig. 2 side wall 3
The formation of four walls cross section to be trapezoidal, from the point of view of Fig. 2, the corresponding trapezoidal top length of side of rear wall 35 is that antetheca 34 is corresponding
About 1/2nd of the following length of side.Four trapezoidal angles be circular support face 11, as shown in Figure 2,3, circular support face 11 it is straight
Footpath is more than the wall thickness of the side wall 3 of Invasive lumbar fusion device, so antetheca 34 and two side 31,32 junctions are not only fillet in outer wall,
Its inner wall section also protrudes a fillet, and rear wall 35 and two side 32,33 junctions are not only fillet, its inner wall section in outer wall
Also a fillet is protruded.Circular support face 11 is in order to which after Invasive lumbar fusion device is implanted into, pressure is mainly consequently exerted at this four angles
On, and this four angles are the maximum region of thickness, so form a firm support, prevent Invasive lumbar fusion device compressed or
It sink.
At least one position of circular support face 11 is provided with spine 12 on the upper surface 1 of Invasive lumbar fusion device, lower surface 2.
Each position only one of which spine 12 of circular support face 11, can also actually there is the point of other quantity in the present embodiment
Thorn.The height of spine 12 is more than the height of projection 5, and positioned at antetheca 34 and two side 31, the circular support face 11 of 32 junctions
On spine highly be slightly above rear wall 35 and two side 32, the circular support face 11 of 33 junctions on spine height, so exist
During implantation, influence of the spine height for implantation difficulty is reduced.Spine is higher than upper and lower surface and dentation, so as in pressure
Penetrated deeper under power in hypocentrum, there is provided Invasive lumbar fusion device plant for the movement of the aspect of obstruction Invasive lumbar fusion device all around
The stability entered.
As shown in figure 3,12 also having passage 121 in spine, the inwall of passage 121 and Invasive lumbar fusion device is communicated.This implementation
Passage 121 is located on the pinnacle of spine 12 in example, and its edge is concordant, it will be appreciated that can also be other designs, such as leads to
The edge in road 121 is zigzag, and such as passage 121 is located on the side wall of spine 12.Channel diameter is 0.1-1mm, is preferably
0.5mm.Passage 121 is a vertical channel, it is to be understood that can also be designed to curve tunnel, and passage can also
Big not isometrical design is exported for entrance is small.There is passage inside spine, the direct channel Invasive lumbar fusion device inwall of passage one, so
Blood fortune in centrum can be entered in the bone graft inside Invasive lumbar fusion device by spine, promotion bone graft and up and down vertebral fusion
Speed.
As Figure 4-Figure 6, a rotatable shaft 4 is arranged on Invasive lumbar fusion device antetheca and rear wall, and rotatable shaft 4 includes front end
41st, rear end 42 and middle non-circular section 43, front end 41 can be provided with external screw thread in the present embodiment, and rear end 42 can also be provided with outer spiral shell
Line, the diameter of front end 41 is more than the diameter of rear end 42.A hole, hole are respectively provided with the antetheca 34 and rear wall 35 of Invasive lumbar fusion device
In be provided with internal thread, the diameter in two holes and front end 41 and the diametric fit of rear end 42 of rotatable shaft 4, internal thread and external screw thread can
Coordinate rotation, it is to be understood that it is a kind of optional fit system that screw thread, which coordinates, can also be other rotatable cooperations
Mode.The non-circular section 43 of rotatable shaft 4, is specifically hexagonal shaft in the present embodiment.
The non-circular section 43 of rotatable shaft 4, which coordinates, has been set with a blade structure 5, specifically, blade structure includes two
The blade 51 that reverse symmetry is set, blade 51 forms an entirety by middle suit part 52, and suit part 52 is one
Outer rim with endoporus is circular structure, naturally it is also possible to be other shapes, and endoporus is a hexagon in the present embodiment
The non-circular section 43 of hole, endoporus and rotatable shaft 4 is engaged, and blade structure 5 is rotated with the rotation of rotatable shaft 4.Knife
Chip architecture 5 can be fixedly connected by the interference fit of endoporus 521 with non-circular section 43, can also by conventional mechanical structure,
The structure such as snap ring is fixedly connected, and blade structure 5 is rotated with rotatable shaft 4, and can not be moved axially.
The blade 51 that two reverse symmetries that blade structure 5 is provided with are set, its blade side is knife edge part, another
Side is thicker knife back part.The groove 53 that depth differs is provided with the side of blade.Depth is deeper close to knife back part, close
Knife edge part is shallower.The trend of groove 53 is the direction parallel to two blades 51.
The handle hole that the top of the front end 41 of rotatable shaft 4 can coordinate provided with one and instrument（It is not shown）, tip edge
It is additionally provided with position of two blades 51 relative to rotatable shaft 4 on two pits 411, the position and blade structure 5 of pit 411
Unanimously, the position of the position judgment blade 51 of pit, the top of front end 41 of rotatable shaft 4 and intervertebral fusion can thus be passed through
The edge of device antetheca 34 is substantially flush.
As shown in Figure 5,6, in order that rotatable shaft 4 is fixed after precalculated position is turned to, in Invasive lumbar fusion device antetheca
34 front side, which is additionally provided with a square groove, square groove, can install a fixed block 6, there is one and can in the middle of fixed block 6
The diameter identical hole of front end 41 of rotary shaft 4, also with two pits, 411 corresponding two projections 61.
The Invasive lumbar fusion device of the present invention is in implantation, and two blades 51 on blade structure 5 are kept flat, as shown in figure 5,
Now position of the top of the front end 41 of rotatable shaft 4 provided with two pits 411 is also horizontal, in Invasive lumbar fusion device implantation
Afterwards, by rotating rotatable shaft 4 in instrument insertion operation hole, it is in the present embodiment rotate counterclockwise, makes blade 51 along blade
On partial insertion in hypocentrum, the angle of rotation is vertical until the position of two pits 411, due to the position of two pits 411
The position put with blade is corresponding, and doctor can indicate that blade 51 is complete according to the position of two pits 411
In insertion in hypocentrum, convenient observed in operation judges.After blade 51 is fully inserted into hypocentrum, by fixed block 6
It is installed in square groove, and the projection 61 of fixed block 6 is inserted into two pits 411, and the rotation position of rotatable shaft 4 is consolidated
Live calmly, as shown in Figure 6.Because the outward flange of fixed block 6 is square, so after being installed in groove, will not rotate, from
And the projection 61 on fixed block 6 also is located at fixed position, rotatable shaft 4 is propped up, it is not rotated again, so that by blade structure
5 position is fixed, and blade 51 is always held in hypocentrum.Because the trend of groove 53 is parallel to two blades 51
Direction, in the piercing of blade 51 after hypocentrum, Intrapyramidal blood and other bone tissues can melt along groove 53 into intervertebral
In the bone graft of implantation in the through hole 4 of clutch.
The blade of hypocentrum in the rotatable piercing set on the Invasive lumbar fusion device of the present invention, blade is planted in Invasive lumbar fusion device
After entering, can not only by rotate it is deep be pierced into there is provided the groove set in implantation stability, and blade in upper hypocentrum, can be with
The blood in centrum is transported by groove to enter in the bone graft inside Invasive lumbar fusion device, promotion bone graft and up and down vertebral fusion
Speed.
Claims (6)
1. a kind of Invasive lumbar fusion device, including upper surface, lower surface, side wall, have through hole through upper and lower surface, it is characterised in that
Side wall includes left side wall, right side wall, antetheca and rear wall, and the cross section of four side wall formation is trapezoidal, the trapezoidal top side
/ 2nd of a length of following length of side, four trapezoidal angles are circular support face, and the diameter in the circular support face is more than
The outer wall of the junction of the wall thickness of Invasive lumbar fusion device side wall, the antetheca and two side be fillet, the junction it is interior
Wall is also a prominent fillet, and at least one spine is set in the upper and lower surface, and the spine is located at Invasive lumbar fusion device
Upper and lower surface, which corresponds to, has passage, passage and intervertebral at least one trapezoidal circular support face position, the spine
The inwall of fusion device is communicated.
2. Invasive lumbar fusion device as claimed in claim 1, it is characterised in that the antetheca and rear wall are provided with hole, and one can revolve
Rotating shaft is arranged between Invasive lumbar fusion device antetheca and rear wall.
3. Invasive lumbar fusion device as claimed in claim 2, it is characterised in that external screw thread, intervertebral are provided with before and after the rotatable shaft
Internal thread is provided with the hole of fusion device antetheca and rear wall, internal thread and external screw thread can coordinate rotation, the center section of rotatable shaft
To be non-circular.
4. Invasive lumbar fusion device as claimed in claim 3, it is characterised in that the non-circular section of the rotatable shaft, which coordinates, to be set with
Blade structure, blade structure can be rotated with the rotation of rotatable shaft.
5. Invasive lumbar fusion device as claimed in claim 4, it is characterised in that the blade structure is set provided with two reverse symmetries
The blade put, blade side is knife edge part, and opposite side is thicker knife back part.
6. Invasive lumbar fusion device as claimed in claim 5, it is characterised in that the side of the blade is provided with the ditch that depth differs
Groove, the trend of groove is the direction parallel to two blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291682.0A CN104856785B (en) | 2015-06-02 | 2015-06-02 | A kind of Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510291682.0A CN104856785B (en) | 2015-06-02 | 2015-06-02 | A kind of Invasive lumbar fusion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104856785A CN104856785A (en) | 2015-08-26 |
| CN104856785B true CN104856785B (en) | 2017-11-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510291682.0A Active CN104856785B (en) | 2015-06-02 | 2015-06-02 | A kind of Invasive lumbar fusion device |
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| CN (1) | CN104856785B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6923830B2 (en) * | 2002-02-02 | 2005-08-02 | Gary K. Michelson | Spinal fusion implant having deployable bone engaging projections |
| US8142508B1 (en) * | 2007-07-02 | 2012-03-27 | Theken Spine, Llc | Spinal cage having deployable member which is removable |
| US8968405B2 (en) * | 2009-01-20 | 2015-03-03 | Incite Innovation Llc | Interbody fusion device and method of operation |
| CN201510380U (en) * | 2009-09-29 | 2010-06-23 | 郭谦 | Self-stabilizing anterior cervical interbody fusion cage |
| WO2013008111A1 (en) * | 2011-07-14 | 2013-01-17 | Kamil Bal | Fixation system for spinal cages |
| CN103300947A (en) * | 2013-05-22 | 2013-09-18 | 广州聚生生物科技有限公司 | Anterior cervical interbody fusion cage |
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2015
- 2015-06-02 CN CN201510291682.0A patent/CN104856785B/en active Active
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| CN104856785A (en) | 2015-08-26 |
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Effective date of registration: 20240401 Address after: G356, 3rd floor, building 1, yard 9, CHENGWAN street, Haidian District, Beijing 100094 Patentee after: Beijing natong Medical Technology Holding Co.,Ltd. Country or region after: China Patentee after: TIANJIN JINXINGDA INDUSTRIAL Co.,Ltd. Patentee after: TIANJIN ZHENGTIAN MEDICAL APPLIANCE Co.,Ltd. Address before: No. 15 Deshengmen West Street, Haidian District, Beijing 100082, Ocean Scenic Area, 8-2-1201 Patentee before: BEIJING NATON TECHNOLOGY GROUP Co.,Ltd. Country or region before: China Patentee before: TIANJIN JINXINGDA INDUSTRIAL Co.,Ltd. Patentee before: TIANJIN ZHENGTIAN MEDICAL APPLIANCE Co.,Ltd. |