CN204306881U - A kind of memory alloy interbody fusion cage - Google Patents
A kind of memory alloy interbody fusion cage Download PDFInfo
- Publication number
- CN204306881U CN204306881U CN201420733523.2U CN201420733523U CN204306881U CN 204306881 U CN204306881 U CN 204306881U CN 201420733523 U CN201420733523 U CN 201420733523U CN 204306881 U CN204306881 U CN 204306881U
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- CN
- China
- Prior art keywords
- fixed block
- memory alloy
- lower fixed
- interbody fusion
- fusion cage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000004927 fusion Effects 0.000 title claims abstract description 47
- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 24
- 229910001000 nickel titanium Inorganic materials 0.000 claims abstract description 4
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 239000010936 titanium Substances 0.000 description 4
- 239000004696 Poly ether ether ketone Substances 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002530 polyetherether ketone Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 208000007623 Lordosis Diseases 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- -1 ether ether ketone Chemical class 0.000 description 1
- 229960000448 lactic acid Drugs 0.000 description 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 1
- 210000004446 longitudinal ligament Anatomy 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002627 poly(phosphazenes) Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model discloses a kind of memory alloy interbody fusion cage, this memory alloy interbody fusion cage adopts Nitinol to be made, comprise: upper fixed block, lower fixed block, fixed piece is fixedly connected with one end of lower fixed block, and between fixed piece and lower fixed block, shape has angle; Fixed piece is respectively equipped with through hole corresponding up and down with lower fixed block middle part, and the upper surface of fixed piece is provided with pawl, and the lower surface of described lower fixed block is provided with pawl.A kind of memory alloy interbody fusion cage that this utility model provides, behind implanted treatment position, nature adjustment can be carried out according to the range of movement for the treatment of stage sufferer ceruical uertebra part, thus acquisition more preferably struts effect, reach enough mechanical stabilities and better biology bone-graft fusion environment, there is structure simple, be convenient to the advantage of medical personnel's operation.
Description
[technical field]
This utility model belongs to medical instruments field, relates to a kind of Invasive lumbar fusion device, is specifically related to a kind of memory alloy interbody fusion cage.
[background technology]
Invasive lumbar fusion device (INNESIS CAGE, hereinafter referred to as Cage) can maintain intervertebral space height, recover center pillar before spinal column support, increase intervertebral space capacity, remove root compression, prevent intervertebral space from collapsing and pseudoarticulation formation, therefore be widely used in anterior cervical vertebrae discectomy fusion (Anterior Cervical Discectomy and Fusion, hereinafter referred to as ACDF).
Experiment confirms that the stability of Cage is mainly derived from its acquisition and struts-pinch effect and interface load sharing effect.Namely, after implantation Invasive lumbar fusion device, under distracting force can make the muscle of fusing stage, fibrous ring and forward and backward longitudinal ligament be in continued tension state, make fusing stage and fusion device reach three-dimensional super statics and fix.The Invasive lumbar fusion device used clinically is at present divided into according to material supply section: 1 metal species fusion device, and this type of Invasive lumbar fusion device adopts titanium alloy to be made mostly; 2 non-metal kind fusion devices, as Carbon fiber interbody, polyphosphazene polymer ether ether ketone (Polyetheretherketone, hereinafter referred to as PEEK), absorbable poly-DL-lactic acid fusion device.Although above Invasive lumbar fusion device has been widely applied in ACDF, but due to the problem of its structure and material, all do not possess elastic deformation ability, behind implanted treatment position, naturally can not adjust according to the range of movement for the treatment of stage, obtain and more preferably strut effect, reach enough mechanical stabilities and better biology bone-graft fusion environment.
For the problems referred to above, application number be 03223313.2 patent discloses a kind of memory alloy interbody fusion cage, its object is to utilize memory alloy properties, provide a kind of higher mechanical stability and better biology integrated environment Invasive lumbar fusion device.This fusion device comprises the circular frame of two different-diameters that two are made up of Ultimum Ti, two support link be made up of Ultimum Ti and at least three can deformation wing plate to what be made up of Ultimum Ti, the circular frame of two different-diameters is positioned on same axial line, the two ends of each support link are individually fixed in the outer peripheral surface of two circular frames, and two support link are positioned on face, same axle center, can be symmetrically fixed in two support link by deformation wing plate.Although can solve the problem, but structure too complex, be not easy to medical personnel's operation.
[summary of the invention]
For the problems referred to above, this utility model provides a kind of memory alloy interbody fusion cage, and this fusion device is combined by upper fixed block and lower fixed block, and between upper fixed block and lower fixed block, shape has angle, and has the advantage that structure is simple, easy to operate.
This utility model is achieved through the following technical solutions, a kind of memory alloy interbody fusion cage is provided, this memory alloy interbody fusion cage adopts Nitinol to be made, comprise: upper fixed block, lower fixed block, fixed piece is fixedly connected with one end of lower fixed block, and between fixed piece and lower fixed block, shape has angle;
Fixed piece is respectively equipped with through hole corresponding up and down with lower fixed block middle part, and the upper surface of fixed piece is provided with pawl, and the lower surface of described lower fixed block is provided with pawl.
Especially, fixed piece is arc with the other end cross section of lower fixed block.
Especially, fixed piece forms a C nibs gap 4 with the junction of lower fixed block.
Especially, described through hole is oval or rectangle.
Especially, described angle is 10 ~ 15 °.
Compared to prior art, a kind of memory alloy interbody fusion cage that this utility model provides, adopts Ultimum Ti to be made, possesses good elastic deformation ability; And this fusion device is combined by upper fixed block and lower fixed block, and shape has angle between upper fixed block and lower fixed block, behind implanted treatment position, nature adjustment can be carried out according to the range of movement for the treatment of stage sufferer ceruical uertebra part, thus obtain and more preferably strut effect, reach further enough mechanical stabilities and better biology bone-graft fusion environment.A kind of memory alloy interbody fusion cage that this utility model provides, has structure simple, is convenient to the advantage of medical personnel's operation.
[accompanying drawing explanation]
Fig. 1 is a working state figure of a kind of memory alloy interbody fusion cage of this utility model;
Fig. 2 is a side view of upper fixed block in a kind of memory alloy interbody fusion cage of this utility model;
Fig. 3 is a side view of a kind of memory alloy interbody fusion cage of this utility model.
[detailed description of the invention]
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, this utility model is further described.
Refer to Fig. 1-Fig. 3, this utility model provides a kind of memory alloy interbody fusion cage, this memory alloy interbody fusion cage adopts Nitinol to be made, comprise: upper fixed block 1, lower fixed block 2, be fixedly connected with one end of lower fixed block 2 for fixed piece 1, and form an included angle A between fixed piece 1 and lower fixed block 2;
Through hole 3 corresponding is up and down respectively equipped with for fixed piece 1 with lower fixed block 1 middle part, and the upper surface of fixed piece 1 is provided with pawl, the lower surface of described lower fixed block 2 is provided with pawl, the direction of described pawl is by the junction inclined open of upper fixed block 1 with lower fixed block 2, by the setting of pawl, the setting that the fusion device that this utility model is provided is more stable and intervertebral, improve the performance of product.
Especially, the fusion device provided to make this utility model can better be fitted with vertebral body antetheca, thus improves the comfort level of patient, and fixed piece 1 is arc with the other end cross section of lower fixed block 2.
Especially, nature adjustment is carried out according to the range of movement for the treatment of rank sufferer ceruical uertebra part in order to make fusion device, thus acquisition more preferably struts effect, a C nibs gap 4 is formed for fixed piece 1 with the junction of lower fixed block 2, described included angle A is 10 ~ 15 °, to meet the cervical lordosis curvature strutting gain-of-function satisfaction after fusion device implantation.
Especially, for the ease of medical personnel's operation, through hole 3 is conformed to bone grafting shape, described through hole 3 is oval or rectangle.
Work process:
In time working, under the fusion device provided by this utility model is placed in low temperature (0 DEG C ~ 8 DEG C) environment, fixed block 1 and lower fixed block 2 are fitted; Medical personnel are implanted sufferer therapentic part (intervertebral space) afterwards; Behind implanted treatment position, under normal body temperature's environmental condition, upper fixed block 1 and lower fixed block 2 open, and form the included angle A of 10 ~ 15 °, thus produce and new strut effect, stable embedding therapentic part.
It should be noted that; the foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a memory alloy interbody fusion cage, this memory alloy interbody fusion cage adopts Nitinol to be made, it is characterized in that, comprise: upper fixed block (1), lower fixed block (2), fixed piece (1) is fixedly connected with one end of lower fixed block (2), and between fixed piece (1) and lower fixed block (2), shape has angle (A);
Fixed piece (1) and lower fixed block (1) middle part are respectively equipped with through hole (3) corresponding up and down, and the upper surface of fixed piece (1) is provided with pawl, the lower surface of described lower fixed block (2) is provided with pawl.
2. a kind of memory alloy interbody fusion cage according to claim 1, is characterized in that, fixed piece (1) is arc with the other end cross section of lower fixed block (1).
3. a kind of memory alloy interbody fusion cage according to claim 1, is characterized in that, fixed piece (1) forms a C nibs gap (4) with the junction of lower fixed block (2).
4. a kind of memory alloy interbody fusion cage according to claim 1, is characterized in that, described through hole (3) is oval or rectangle.
5. a kind of memory alloy interbody fusion cage according to claim 1, is characterized in that, described angle (A) is 10 ~ 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420733523.2U CN204306881U (en) | 2014-12-01 | 2014-12-01 | A kind of memory alloy interbody fusion cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420733523.2U CN204306881U (en) | 2014-12-01 | 2014-12-01 | A kind of memory alloy interbody fusion cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204306881U true CN204306881U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420733523.2U Expired - Fee Related CN204306881U (en) | 2014-12-01 | 2014-12-01 | A kind of memory alloy interbody fusion cage |
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| CN (1) | CN204306881U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496613A (en) * | 2015-12-29 | 2016-04-20 | 四川大学华西医院 | Cervical vertebra transboundary intervertebral height maintaining device |
| US10973650B2 (en) | 2015-12-30 | 2021-04-13 | Nuvasive, Inc. | Lordotic expandable fusion implant |
| US11234833B2 (en) | 2015-05-12 | 2022-02-01 | Nuvasive, Inc. | Expandable lordosis intervertebral implants |
| US11273047B2 (en) | 2017-12-18 | 2022-03-15 | Nuvasive, Inc. | Expandable implant device |
| US11679000B2 (en) | 2013-05-22 | 2023-06-20 | Nuvasive, Inc. | Expandable fusion implant and related methods |
-
2014
- 2014-12-01 CN CN201420733523.2U patent/CN204306881U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11679000B2 (en) | 2013-05-22 | 2023-06-20 | Nuvasive, Inc. | Expandable fusion implant and related methods |
| US11957602B2 (en) | 2013-05-22 | 2024-04-16 | Nuvasive Inc. | Expandable fusion implant and related methods |
| US11234833B2 (en) | 2015-05-12 | 2022-02-01 | Nuvasive, Inc. | Expandable lordosis intervertebral implants |
| US11938040B2 (en) | 2015-05-12 | 2024-03-26 | Nuvasive, Inc. | Expandable lordosis intervertebral implants |
| CN105496613A (en) * | 2015-12-29 | 2016-04-20 | 四川大学华西医院 | Cervical vertebra transboundary intervertebral height maintaining device |
| US10973650B2 (en) | 2015-12-30 | 2021-04-13 | Nuvasive, Inc. | Lordotic expandable fusion implant |
| US11690730B2 (en) | 2015-12-30 | 2023-07-04 | Nuvasive, Inc. | Lordotic expandable fusion implant |
| US11273047B2 (en) | 2017-12-18 | 2022-03-15 | Nuvasive, Inc. | Expandable implant device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20151201 |
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| EXPY | Termination of patent right or utility model |