CN204501118U - A kind of Invasive lumbar fusion device - Google Patents
A kind of Invasive lumbar fusion device Download PDFInfo
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- CN204501118U CN204501118U CN201520173110.8U CN201520173110U CN204501118U CN 204501118 U CN204501118 U CN 204501118U CN 201520173110 U CN201520173110 U CN 201520173110U CN 204501118 U CN204501118 U CN 204501118U
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Abstract
This application discloses a kind of Invasive lumbar fusion device, comprise the fusion device body of square column type, the opposing surface of a pair of fusion device body is equipped with loose structure, the inside of fusion device body is provided with three-dimensional porous bone tissue engineering supporting structure, fusion device body surface scribbles hydroxyapatite coating layer, loose structure and three-dimensional porous bone tissue engineering supporting structure are interconnected, and are provided with pawl with the rib of the perpendicular at loose structure place.Thus, by the inducing action of fusion device hydroxyapatite coating on surface and interior three-dimensional porous bone tissue engineering supporting structure, become to be integrated by " growth " between fusion device with osseous tissue, overcome in prior art and need a large amount of bone grafting shortcoming, and fusion device becomes to be integrated by " growth " with surrounding bone tissue, avoid that spinal fusion is postoperative not to be merged or the generation of the complication such as pseudoarticulation formation, there is good Clinical practice effect, rib is provided with pawl, stably can be arranged on intervertebral, there will not be the phenomenon of sedimentation.
Description
Technical field
This utility model relates to Invasive lumbar fusion device, particularly relates to one more easily and bone growth all-in-one-piece Invasive lumbar fusion device.
Background technology
Ridge is leant on fusion and was reported in 1911 by Hibbs etc. at first, after Mercer proposed the theory of intervertebral fusion in 1936 afterwards, spinal fusion surgery obtains very fast development, starts to apply Invasive lumbar fusion device the eighties in 20th century and adds bone graft fusion for treatment low back pain and achieve good curative effect.From then on, spinal fusion has developed into fusion device fusion from simple bone graft.
Spinal fusion is one of current modus operandi the most frequently used clinically, is the effective means of the spine disorderses such as treatment spinal tuberculosis, infection, deformity, degeneration and intervertebral disk injury.It, mainly through implanting Invasive lumbar fusion device at intervertebral space, is implanted a large amount of autologous bones or homogeneous allogenic bone simultaneously, thus realizes intervertebral fusion, reach the object of stabilizing spine.
Current spinal fusion device is implanted intervertebral space and is mainly played a supportive role, can not induced osteogenesis, therefore often need to implant autologous bone or homogeneous allogenic bone in fusion device, to reach the object of Bony union, autologous bone needs to take out in the health of patient, bring very large misery often to patient's body and mind, and homogeneous allogenic bone is not only expensive, and syncretizing effect is also undesirable, often there is the situation that the lumbar vertebras such as Post lumbar surgery pseudoarticulation formation do not merge.
Hydroxyapatite (Hydroxyapat ite, HA) one of best bioceramic of current biocompatibility is considered to, this is mainly because HA is similar to the inorganic constituents in body bone tissue, can synostosis be formed with skeleton and there is induced osteogenesis effect in a short time after implant into body, therefore bioactive coating material is widely used as clinically, but up to the present, also not about the report of hydroxyapatite coating layer fusion device.
Utility model content
The purpose of this utility model is to provide a kind of Invasive lumbar fusion device, solves one or more in above-mentioned prior art problem.
According to an aspect of the present utility model, a kind of Invasive lumbar fusion device is provided, comprise the fusion device body of square column type, the opposing surface of a pair of fusion device body is equipped with loose structure, the inside of fusion device body is provided with three-dimensional porous bone tissue engineering supporting structure, fusion device body surface scribbles hydroxyapatite coating layer, and loose structure and three-dimensional porous bone tissue engineering supporting structure are interconnected, and are provided with pawl with the rib of the perpendicular at loose structure place.
In some embodiments, the porosity of three-dimensional porous bone tissue engineering supporting structure is 67%.Thus, Growth of Cells, the conveying of nutritional flow and the discharge of metabolite can be adapted to preferably.
This utility model passes through the inducing action of fusion device hydroxyapatite coating on surface and interior three-dimensional porous bone tissue engineering supporting structure, become to be integrated by " growth " between fusion device with osseous tissue, not only overcome in prior art and need a large amount of bone grafting shortcoming, and fusion device becomes to be integrated by " growth " with surrounding bone tissue, effectively prevent that spinal fusion is postoperative not to be merged or the generation of the complication such as pseudoarticulation formation, there is good Clinical practice effect.In addition, rib is provided with pawl, stably can be arranged on intervertebral, there will not be the phenomenon of sedimentation.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of Invasive lumbar fusion device of this utility model.
Detailed description of the invention
Illustrate below in conjunction with accompanying drawing, this utility model is described in further detail.
As shown in Figure 1, a kind of Invasive lumbar fusion device, comprises the fusion device body 1 of square column type, and the opposing surface of a pair of fusion device body 1 all offers loose structure 2, a face of fusion device body 1 offers loose structure 2 specifically, and another face opposing with it also offers loose structure 2.Loose structure 2 is irregular hole.The inside of fusion device body 1 is one-body molded three-dimensional porous bone tissue engineering supporting structure 3, there is the high porosity loose structure be connected three-dimensional porous bone tissue engineering supporting structure 3 inside, Growth of Cells, the conveying of nutritional flow and the discharge of metabolite can be adapted to, in the present embodiment, the porosity of three-dimensional porous bone tissue engineering supporting structure 3 is 67%, can adapt to Growth of Cells, the conveying of nutritional flow and the discharge of metabolite preferably thus.Fusion device body 1 surface scribbles hydroxyapatite coating layer 4, and in the present embodiment, the surface being provided with loose structure 2 at fusion device body 1 scribbles hydroxyapatite coating layer 4.Loose structure 2 and three-dimensional porous bone tissue engineering supporting structure 3 are interconnected, and the loose structure 2 on fusion device body 1 one surface is connected by the loose structure 2 of three-dimensional porous bone tissue engineering supporting structure 3 with another surface of fusion device body 1.In addition, pawl 5 is had with the rib of the fusion device body 1 of the perpendicular at loose structure 2 place is one-body molded, pawl 5 indentation, and with the linear array of the perpendicular with loose structure 2 place, thus, stably can be arranged on intervertebral, there will not be the phenomenon of sedimentation.
In sum, this utility model passes through the inducing action of fusion device hydroxyapatite coating on surface and interior three-dimensional porous bone tissue engineering supporting structure, become to be integrated by " growth " between fusion device with osseous tissue, not only overcome in prior art and need a large amount of bone grafting shortcoming, and fusion device becomes to be integrated by " growth " with surrounding bone tissue, effectively prevent that spinal fusion is postoperative not to be merged or the generation of the complication such as pseudoarticulation formation, there is good Clinical practice effect.In addition, rib is provided with pawl, stably can be arranged on intervertebral, there will not be the phenomenon of sedimentation.
The above is only a kind of embodiment of the present utility model; it should be pointed out that to those skilled in the art, under the prerequisite not departing from this utility model creation design; can also make some similar distortion and improvement, these also should be considered as within protection domain of the present utility model.
Claims (2)
1. an Invasive lumbar fusion device, it is characterized in that: the fusion device body (1) comprising square column type, the opposing surface of a pair of described fusion device body (1) is equipped with loose structure (2), the inside of described fusion device body (1) is provided with three-dimensional porous bone tissue engineering supporting structure (3), described fusion device body (1) surface scribbles hydroxyapatite coating layer (4), described loose structure (2) and described three-dimensional porous bone tissue engineering supporting structure (3) are interconnected, pawl (5) is provided with the rib of the perpendicular at described loose structure (2) place.
2. a kind of Invasive lumbar fusion device according to claim 1, is characterized in that, the porosity of described three-dimensional porous bone tissue engineering supporting structure (3) is 67%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173110.8U CN204501118U (en) | 2015-03-25 | 2015-03-25 | A kind of Invasive lumbar fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520173110.8U CN204501118U (en) | 2015-03-25 | 2015-03-25 | A kind of Invasive lumbar fusion device |
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| CN204501118U true CN204501118U (en) | 2015-07-29 |
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| CN201520173110.8U Expired - Fee Related CN204501118U (en) | 2015-03-25 | 2015-03-25 | A kind of Invasive lumbar fusion device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106729977A (en) * | 2017-01-12 | 2017-05-31 | 上海锐植医疗器械有限公司 | A kind of bioactivity Invasive lumbar fusion device |
-
2015
- 2015-03-25 CN CN201520173110.8U patent/CN204501118U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106729977A (en) * | 2017-01-12 | 2017-05-31 | 上海锐植医疗器械有限公司 | A kind of bioactivity Invasive lumbar fusion device |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160325 |
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| CF01 | Termination of patent right due to non-payment of annual fee |