CN105287061B - Interface type interbody fusion cage - Google Patents
Interface type interbody fusion cage Download PDFInfo
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- CN105287061B CN105287061B CN201510866674.4A CN201510866674A CN105287061B CN 105287061 B CN105287061 B CN 105287061B CN 201510866674 A CN201510866674 A CN 201510866674A CN 105287061 B CN105287061 B CN 105287061B
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- Prior art keywords
- fusion
- mesh
- connecting portion
- hole
- fusion portion
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- 230000004927 fusion Effects 0.000 title claims abstract description 127
- 206010058109 Hangnail Diseases 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 3
- 239000011247 coating layer Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 30
- 230000035876 healing Effects 0.000 abstract description 9
- 230000002980 postoperative effect Effects 0.000 abstract description 6
- 230000008468 bone growth Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 230000004936 stimulating effect Effects 0.000 description 6
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 210000004204 blood vessel Anatomy 0.000 description 4
- 239000007943 implant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 208000007356 Fracture Dislocation Diseases 0.000 description 1
- 208000002607 Pseudarthrosis Diseases 0.000 description 1
- 206010041591 Spinal osteoarthritis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 208000036319 cervical spondylosis Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 210000003692 ilium Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 201000005671 spondyloarthropathy Diseases 0.000 description 1
- 208000005801 spondylosis Diseases 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Landscapes
- Prostheses (AREA)
Abstract
The invention relates to an interface type interbody fusion cage which comprises a fusion part A, a fusion part B and a connecting part connected between the fusion part A and the fusion part B, wherein the outer end surfaces of the fusion part A and the fusion part B are both of a mesh porous structure, a mesh A of the mesh porous structure on the outer end surface of the fusion part A axially penetrates through the fusion part A, the inner side opening of the mesh A is larger than the outer side opening, a mesh B of the mesh porous structure on the outer end surface of the fusion part B axially penetrates through the fusion part B, and the inner side opening of the mesh B is larger than the outer side opening. According to the invention, the meshes A and B on the end surfaces are large in inside and small in outside, once bones grow in from the meshes A and B, the vertebral bodies cannot be pulled out of the fusion cage body, the bones grow in from the two end surfaces of the fusion cage body, and the fusion cage body plays a role in supporting a connector. The invention greatly shortens the bone growth distance and the healing time, and improves the fusion rate, thereby reducing the postoperative braking time of the patient and relieving the physical and psychological pain of the patient.
Description
Technical field
The present invention relates to technical field of medical instruments, more particularly to a kind of interfacial type Invasive lumbar fusion device.
Background technology
ACDF was widely used in treating various cervical spondylosis up to 60 years, and traditional discectomy interbody bone graft melts
Conjunction is emphasized " vertebral fusion " --- bone is from upper hypocentrum toward center growth healing, yet with anatomical physiology reason, upper hypocentrum
Between distant, " creeping substitution healing journey " very long and hard (1cm or so) of bone, healing time is longer, patient need wear
Neck brace braking is worn up to 3-6 months, very big discomfort is brought to patients ' psychological and body, and work position can not be returned in time, to family
Front yard, society, country bring loss.
The content of the invention
The present invention is intended to provide a kind of interfacial type Invasive lumbar fusion device, shortens the distance and healing time of bone uptake, reduces disease
The time of the postoperative braking of people and pain, and bone fusion rate can be improved.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
A kind of interfacial type Invasive lumbar fusion device, including fusion portion A, fusion portion B and be connected between fusion portion A, fusion portion B
Connecting portion, the fusion portion A and fusion portion B outer face are reticulated porous structures, the mesh structural porous knot of fusion portion A outer faces
The mesh A of structure axially penetrates through side opening in fusion portion A, the mesh A and is more than outer openings, the net through fusion portion B outer faces
The mesh B axle of shape loose structure in fusion portion B, the mesh B side opening be more than outer openings.In mesh A and mesh B
Big outer small, bone once is grown into from mesh A and mesh B, and centrum will be unable to the extraction from fusion device body, and bone is from fusion device body
Top surface and bottom surface are grown into, and play a part of interface fusion, once interface Integrated implant reaches stabilization, fusion device body will play one
The effect of attachment is supported, fusion purpose is realized.
It is preferred that, through hole A axially penetrates through fusion portion A, fusion portion B and connecting portion, and the diameter of the through hole A is more than mesh A
With mesh B diameter.Through hole A in order to vertebral bone grown into by through hole A large area into fusion device body and with to pleurocentrum
Bone converges, but this function is extra, is double-safety, and mesh structural porous bone interface healing can make intervertebral and melt
Clutch Integrated implant reaches stabilization；The filling duct that through hole A can be also used for Invasive lumbar fusion device bone material is used, including ilium,
Artificial bone etc.；The blood vessel blood fortune nutriment for also allowing for centrum simultaneously passes through this hole to fusion device including some into bone stimulating factor
Center infiltration.
It is preferred that, the connecting portion is hollow circuit cylinder, the external diameter of the connecting portion and the diameter phase for merging portion A, fusion portion B
Together, the connecting portion, fusion portion A and fusion portion B are coaxial.Hollow design, is beneficial to place bone-grafting material again.
It is preferred that, there is hangnail the fusion portion A and fusion portion B outer face.Interbody space is being strutted, fusion device is implanted into
After body, dilator is unclamped, centrum is bounced back to center, and part is pressed into centrum, the postoperative standing activity of patient, neck gravity by hangnail
Hangnail further will be pressed into centrum completely, because with hangnail, the Initial stability of Invasive lumbar fusion device is preferable, without
Extra Interal fixation；If the patient bad for cervical stabilities such as fracture dislocations, while with such fusion device, also may be used
Preceding road is additionally fixed with steel plate screw, but in patient with cervical Spondylopathy, without using extra fixation.
Further, have on the side of the connecting portion inside through hole B, the through hole B connections connecting portion.Through hole B can be with
Use, especially after fusion device body, which is laid, to be finished, can still be injected by this hole more semi-solid artificial for packing material
The materials such as bone, can also facilitate various nutriments, stimulating factor to enter by this hole, promote bone uptake.
Further, the side of the connecting portion is along the circumferential direction divided into four faces, and one of side is sealing
Face, other three sides are that the mesh C of reticulated porous structures on reticulated porous structures, side is connected inside connecting portion, described close
Front cover is just right with the face where through hole B.Mesh C is conducive to blood vessel blood fortune nutriment to pass through this into bone stimulating factor including some
Hole is permeated to fusion device body central, facilitates various nutriments, stimulating factor to enter by this hole.The design of sealing surface be for
Prevent bone-grafting material from being come off to intraspinal tube, protect spinal cord.
It is preferred that, be provided with support column in the connecting portion, the support column inside the connecting portion or with connecting portion
Wall combines together, and described support column one end is connected with merging portion A, and the support column other end is connected with merging portion B, and the support column is extremely
Rare 2.Support column is used to increase fusion device intensity, prevents interface from collapsing.
Further, the fusion portion A and fusion portion B outer face are attached with hydroxyapatite coating layer.Hydroxy-apatite
Stone coating has the Integrated implant effect of increase bone uptake.
Further, the fusion portion A, fusion portion B axle to size be 1~2mm, the wall thickness of the connecting portion for 1~
2mm。
Compared with prior art, the invention has the advantages that：
Big outer small in mesh A and mesh B on end face of the present invention, bone is once grown into from mesh A and mesh B, and centrum is by nothing
Method is extracted from fusion device body, and bone is grown into from fusion device body both ends of the surface, plays a part of interface fusion；Mesh A and mesh B
Design, also allow for centrum blood vessel blood fortune nutriment oozed including some into bone stimulating factor by this hole to fusion device center
Thoroughly.Once interface Integrated implant reaches stabilization, fusion device body will play a part of a support attachment.The present invention melts intervertebral
Conjunction shorten to 2 millimeters from " 1 centimetre " Zuo You, greatly shortens distance, the healing time of bone uptake, improves fusion rate, so that
The time of the postoperative braking of patient is reduced, mitigates patient's body and mind pain.
Brief description of the drawings
Fig. 1 is the top view of embodiment 1 and embodiment 2；
Fig. 2 is the sectional view of embodiment 1；
Fig. 3 is the front view of embodiment 1；
Fig. 4 is the rearview of embodiment 1；
Fig. 5 is the sectional view of embodiment 2；
In figure：1- mesh A, 2- mesh B, 3- through hole A, 4- support column, 5- through hole B, 6- mesh C, 7- hangnails.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with accompanying drawing, the present invention is entered
Row is further described.
Embodiment 1
As shown in Figure 1, 2, 3, interfacial type Invasive lumbar fusion device disclosed by the invention, including fusion portion A, fusion portion B and connection
Connecting portion between fusion portion A, fusion portion B, fusion portion A and fusion portion B outer face are reticulated porous structures, fusion portion
The mesh A1 of the reticulated porous structures of A outer faces axially penetrates through side opening in fusion portion A, mesh A1 and is more than outer openings, runs through
The mesh B2 of the reticulated porous structures of fusion portion B outer faces axially penetrates through side opening in fusion portion B, mesh B2 and opened more than outside
Mouthful.Fusion device body center is provided with through hole A3, and through hole A3 axially penetrates through fusion portion A, fusion portion B and connecting portion, and through hole A3's is straight
Footpath is more than mesh A2 and mesh B2 diameter, a diameter of 4mm of through hole A3.Fusion portion A and fusion portion B outer face are attached with hydroxyl
Base apatite coating.Fusion portion A and fusion portion B outer face, which are evenly equipped with 4 hangnails 7, hangnail 7, barb, the long 3mm of hangnail 7,
Fusion portion A, fusion portion B and connecting portion are integrally formed.
Connecting portion is cylinder, and the external diameter of connecting portion is identical with fusion portion A, fusion portion B diameter, connecting portion, fusion portion A and
Fusion portion B is coaxial.The side of connecting portion is along the circumferential direction divided into four faces, and one of side is sealing surface, and other three
Individual side is that mesh C6 diameters are more than inside the mesh C6 connection connecting portions of reticulated porous structures on reticulated porous structures, side
Mesh A2 and mesh B2 diameter.There are through hole B5, a diameter of 3~4mm of through hole B5 on a face relative with the sealing surface, melt
Conjunction portion A, fusion portion B axle to size be 1~2mm.
Embodiment 2
The present embodiment and the difference of embodiment 1 are：As shown in Figure 3,4, connecting portion is hollow circuit cylinder, fusion portion A and is melted
B centers in conjunction portion are axially provided with inside through hole A3, through hole A3 connection connecting portions, and the through hole A3 on fusion portion A is with merging on portion B
Through hole A3 is just right, and the wall thickness of connecting portion is 1~2mm.Because connecting portion is hollow, so support column 4 is provided with connecting portion, support
Post 4 can also combine together inside connecting portion with the wall of connecting portion, play reinforcement, the one end of support column 4 is with melting
Conjunction portion A is connected, and the other end of support column 4 is connected with merging portion B, support column 4 at least 2.It is preferred that, support column 4 has 4,
Cloth is on same circumference, and this circumference, through hole A3, connecting portion three are coaxial.Support column 4 and fusion device body material are that titanium is closed
Gold.Intervertebral fusion bone uptake of the present invention shorten to 2 millimeters from " 1 centimetre " Zuo You, greatly shorten bone uptake distance, so as to
Shorten healing time, so, the postoperative braking time of patient can be shortened to 1 month from 3 to 6 months, reduce patient's art
The time braked afterwards and pain, patient need to only wear and can just return within one month work unit and work on.At present, it is not every
The bone of individual patient can grow to 1cm and meet, and the present invention shortens after bone uptake distance, and bone uptake difficulty reduction, fusion rate is obtained
To improve, the complication such as the postoperative pseudarthrosis formation of patient, pain will be reduced.And three sides of fusion device body, top surface and bottom surface
Mesh design, significantly increase the packing space of internal bone-grafting material, increase is internal with vertebral bone face, it is internal with front,
The contact of two sides, the blood vessel blood fortune nutriment for also allowing for centrum passes through this hole to fusion device including some into bone stimulating factor
Center infiltration, stimulates skeletonization, promotes healing.
Certainly, the present invention can also have other numerous embodiments, in the case of without departing substantially from spirit of the invention and its essence,
Those skilled in the art can make various corresponding changes and deformation, but these corresponding changes and change according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (9)
1. a kind of interfacial type Invasive lumbar fusion device, it is characterised in that:Including fusion portion A, fusion portion B and be connected to fusion portion A, fusion
Connecting portion between portion B, the fusion portion A and fusion portion B outer face are reticulated porous structures, fusion portion A outer faces
The mesh A (1) of reticulated porous structures axially penetrates through fusion portion A, and the interior side opening of the mesh A (1) is more than outer openings, through melting
The mesh B (2) of the reticulated porous structures of conjunction portion B outer faces axially penetrates through fusion portion B, and the interior side opening of the mesh B (2) is more than outer
Side opening；The fusion portion A and fusion portion B axial dimension are 1~2mm；Through hole A (3) axially penetrates through fusion portion A, fusion
Portion B and connecting portion, the diameter of the through hole A (3) are more than mesh A (2) and mesh B (2) diameter.
2. interfacial type Invasive lumbar fusion device according to claim 1, it is characterised in that：The connecting portion is hollow circuit cylinder, institute
The external diameter for stating connecting portion is identical with fusion portion A, fusion portion B diameter, and the connecting portion, fusion portion A and fusion portion B are coaxial.
3. interfacial type Invasive lumbar fusion device according to claim 1, it is characterised in that：The fusion portion A's and fusion portion B is outer
End face has hangnail (7).
4. interfacial type Invasive lumbar fusion device according to claim 2, it is characterised in that：There is through hole on the side of the connecting portion
Inside B (5), through hole B (5) the connection connecting portion.
5. interfacial type Invasive lumbar fusion device according to claim 4, it is characterised in that：The side of the connecting portion is circumferentially square
To four faces are divided into, one of side is sealing surface, and other three sides are netted many on reticulated porous structures, side
Inside mesh C (6) the connection connecting portions of pore structure, the sealing surface and face where through hole B (5) are just right.
6. interfacial type Invasive lumbar fusion device according to claim 2, it is characterised in that：Support column is provided with the connecting portion
(4), the support column (4) is combined together inside connecting portion or with the wall of connecting portion, and described support column (4) one end is with melting
Conjunction portion A is connected, and support column (4) other end is connected with merging portion B, the support column (4) at least 2.
7. interfacial type Invasive lumbar fusion device according to claim 1, it is characterised in that：The fusion portion A's and fusion portion B is outer
End face is attached with hydroxyapatite coating layer.
8. interfacial type Invasive lumbar fusion device according to claim 2, it is characterised in that：The fusion portion A and the equal axles of fusion portion B
To through hole A (3) is provided with, through hole A (3) is connected inside connecting portion.
9. interfacial type Invasive lumbar fusion device according to claim 2, it is characterised in that：The wall thickness of the connecting portion be 1~
2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510866674.4A CN105287061B (en) | 2015-12-01 | 2015-12-01 | Interface type interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510866674.4A CN105287061B (en) | 2015-12-01 | 2015-12-01 | Interface type interbody fusion cage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105287061A CN105287061A (en) | 2016-02-03 |
| CN105287061B true CN105287061B (en) | 2017-08-25 |
Family
ID=55185369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510866674.4A Active CN105287061B (en) | 2015-12-01 | 2015-12-01 | Interface type interbody fusion cage |
Country Status (1)
| Country | Link |
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| CN (1) | CN105287061B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925102A (en) * | 2019-04-12 | 2019-06-25 | 北京大学第三医院 | Lumbar Fusion prosthese |
| CN112998917B (en) * | 2021-02-19 | 2024-05-28 | 首都医科大学宣武医院 | Lower cervical vertebra side block prosthesis |
| CN113143550B (en) * | 2021-05-20 | 2023-05-05 | 四川大学 | Fusion device with multi-layer bionic active fusion function and preparation method thereof |
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| CN205198215U (en) * | 2015-12-01 | 2016-05-04 | 四川大学华西医院 | Interface type interbody fusion cage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7105023B2 (en) * | 2002-01-17 | 2006-09-12 | Concept Matrix, L.L.C. | Vertebral defect device |
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|---|---|---|---|---|
| CN2910135Y (en) * | 2006-01-18 | 2007-06-13 | 顾宇彤 | Combined interspinous fusion device for cervical vertebrae |
| WO2010052283A1 (en) * | 2008-11-07 | 2010-05-14 | Advanced Medical Technologies Ag | Implant for fusing spinal column segments |
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| Publication number | Publication date |
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| CN105287061A (en) | 2016-02-03 |
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