CN204909739U - Artificial knee joint tibial tray of coarse thin layer in modified area - Google Patents
Artificial knee joint tibial tray of coarse thin layer in modified area Download PDFInfo
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- CN204909739U CN204909739U CN201520557814.5U CN201520557814U CN204909739U CN 204909739 U CN204909739 U CN 204909739U CN 201520557814 U CN201520557814 U CN 201520557814U CN 204909739 U CN204909739 U CN 204909739U
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- CN
- China
- Prior art keywords
- tibial tray
- thin layer
- knee joint
- artificial knee
- coarse
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- 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.)
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- 210000000629 knee joint Anatomy 0.000 title claims abstract description 18
- 238000005266 casting Methods 0.000 claims abstract description 8
- 238000005242 forging Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 108010048734 sclerotin Proteins 0.000 claims abstract description 5
- 230000003746 surface roughness Effects 0.000 claims description 8
- 210000000988 bone and bone Anatomy 0.000 abstract description 9
- 230000036285 pathological change Effects 0.000 abstract description 2
- 231100000915 pathological change Toxicity 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000001356 surgical procedure Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 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 description 1
- 230000035790 physiological processes and functions Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 238000007751 thermal spraying Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 210000002303 tibia Anatomy 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
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- Prostheses (AREA)
Abstract
The utility model relates to a modified artificial knee joint tibial tray, characterized by is made by casting or forging, and rethread vibration material disk forms crude medical thin layer on the corresponding surface that tibial tray and patient's sclerotin contacted. Because of casting and forging intensity and the mechanical properties who has guaranteed the tibial tray, rethread vibration material disk is coarse thin layer customization optimum roughness, and ability maximize ground is favorable to the bone to depend on or the bone is grown into. The utility model discloses it carries out bone total joint replacement surgery's use to be fit for the human knee joint pathological change.
Description
Technical field
This utility model relates to the artificial joint of medical science osteoarticular field, the artificial knee joint tibial tray of particularly a kind of improvement.
Background technology
Artificial knee joint tibial tray is body implant, the alternative being implanted in human tibia end when carrying out orthopaedics replacement operation is needed for human body knee joint pathological changes, make patient recover kneed physiological function to a certain extent, alleviating pain, improve motion and improve the quality of living.
In prior art, make artificial knee joint tibial tray by casting or forging, after form coarse thin layer through sandblasting at tibial tray (1), or hydroxyapatite or titanium are formed coarse thin layer by thermal spraying at tibial tray (1); Also artificial knee joint tibial tray and rough surface thin layer is made into integration by increasing material manufacture.But by casting and forge the artificial knee joint tibial tray of formation, the roughness on its surface is difficult to customization, is unfavorable for that bone depends on or Bone Ingrowth, after using certain hour, has loosening possibility, adds the mortality of replacement, the physiological load of making patients.The artificial knee joint tibial tray be made into integration by the manufacture of increasing material is inadequate because of manufacturing technology Maturity, can not ensure mechanical property and the mechanical strength of tibial tray, causes the risk having fracture and second operation in implant.
Summary of the invention
The purpose of this utility model is the artificial knee joint tibial tray providing a kind of improvement, under the prerequisite ensureing mechanical property and mechanical strength, the surface roughness with Bone Ingrowth can be depended on for the most applicable bone of tibial tray customization, overcome the defect easily loosening and may rupture after existing artificial knee joint tibial tray is implanted.
Task of the present utility model realizes by this way:
A kind of artificial knee joint tibial tray, first makes by casting or forging, then is manufactured on tibial tray (1) by increasing material and forms coarse medical thin layer (2), and customizes optimum surface roughness for this coarse thin layer.
Can according to the sclerotin difference of patient and biomechanics requirement, for patient customizes coverage rate and the surface roughness of coarse thin layer.
Coarse medical thin layer (2) is distributed in the respective surfaces that tibial tray (1) contacts with patient's sclerotin, can cover the surface of 1% ~ 99%;
The average surface roughness Ra scope of coarse medical thin layer (2) is 3.2 ~ 1250.
Advantage of the present invention is: this utility model makes artificial knee joint tibial tray by casting or forging, and ensure that intensity and the mechanical property of tibial tray.Be fabricated to coarse medical thin layer (2) by increasing material again and customize optimum surface roughness, bone can be conducive to substantially and depend on and Bone Ingrowth.
Accompanying drawing explanation
Fig. 1 is this utility model example structure schematic diagram (wherein coarse thin layer is distributed in the part surface of tibial tray).
Detailed description of the invention
As shown in Figure 1, this utility model provides a kind of artificial knee joint tibial tray, makes by casting or forging.Then set up the coarse thin film model with optimum surface roughness (such as Ra=400) in a computer, then by laser or high-power electron beam melting medical powder, this artificial knee joint tibial tray obtains required coarse thin layer.
Claims (1)
1. the artificial knee joint tibial tray of the coarse thin layer of band improved, is characterized in that making by casting or forging, then is manufactured on tibial tray (1) and goes up the respective surfaces contacted with patient's sclerotin by increasing material and form coarse medical thin layer (2); The coverage of this coarse medical thin layer (2) can customize, and is distributed in the respective surfaces that tibial tray (1) contacts with patient's sclerotin, can covers the surface of 1% ~ 99%; The surface roughness of this coarse medical thin layer (2) can customize, and average surface roughness Ra scope is 3.2 ~ 1250.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520557814.5U CN204909739U (en) | 2015-07-29 | 2015-07-29 | Artificial knee joint tibial tray of coarse thin layer in modified area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520557814.5U CN204909739U (en) | 2015-07-29 | 2015-07-29 | Artificial knee joint tibial tray of coarse thin layer in modified area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204909739U true CN204909739U (en) | 2015-12-30 |
Family
ID=54958930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520557814.5U Active CN204909739U (en) | 2015-07-29 | 2015-07-29 | Artificial knee joint tibial tray of coarse thin layer in modified area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204909739U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105885A (en) * | 2015-07-29 | 2015-12-02 | 深圳市义和平有限公司 | Improved artificial knee joint tibial tray with rough film and preparation method thereof |
| CN109688979A (en) * | 2016-08-03 | 2019-04-26 | 泰坦脊椎公司 | Enhance the implant surface of self-bone grafting |
-
2015
- 2015-07-29 CN CN201520557814.5U patent/CN204909739U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105105885A (en) * | 2015-07-29 | 2015-12-02 | 深圳市义和平有限公司 | Improved artificial knee joint tibial tray with rough film and preparation method thereof |
| CN109688979A (en) * | 2016-08-03 | 2019-04-26 | 泰坦脊椎公司 | Enhance the implant surface of self-bone grafting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180830 Address after: 518118 third floor, No. two, No. 8, Tsing Lan Road, Pingshan District, Shenzhen, Guangdong. Patentee after: Wu Dong Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee before: SHENZHEN YIHEPING CO., LTD. |