CN105105886A - Improved artificial knee joint tibial tray with porous film and preparation method thereof - Google Patents
Improved artificial knee joint tibial tray with porous film and preparation method thereof Download PDFInfo
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- CN105105886A CN105105886A CN201510453388.5A CN201510453388A CN105105886A CN 105105886 A CN105105886 A CN 105105886A CN 201510453388 A CN201510453388 A CN 201510453388A CN 105105886 A CN105105886 A CN 105105886A
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- Prior art keywords
- tibial tray
- knee joint
- artificial knee
- improved artificial
- bone
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Abstract
The invention relates to an improved artificial knee joint tibial tray which is characterized in that the improved artificial knee joint tibial tray is cast or forged, and then a porous medical metal film is formed on the corresponding surface, being in contact with a bone of a patient, of the tibial tray through the additive manufacturing. The strength and mechanical properties of the tibial tray are guaranteed by casting and forging, and then the optimal porosity is customized for the porous film through the additive manufacturing, so that bone attachment or bone ingrowth can be facilitated to the maximum. The improved artificial knee joint tibial tray is suitable for a bone joint replacement surgery for human knee joint lesions.
Description
Technical field
The present invention 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 thin porous layer through sandblasting on tibial tray surface, or hydroxyapatite or titanium are formed thin porous layer by thermal spraying on tibial tray surface; Also artificial knee joint tibial tray and porous 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 aperture 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 object of the present invention is to provide a kind of artificial knee joint tibial tray of improvement, under the prerequisite ensureing mechanical property and mechanical strength, the porosity 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 invention realizes by this way:
A kind of artificial knee joint tibial tray (1), first makes by casting or forging, then is manufactured on tibial tray surface formation porous medical metal thin layer (2) by increasing material, and customizes optimum porosity for this thin porous layer.
Can according to the sclerotin difference of patient and biomechanics requirement, for patient customizes coverage rate and the porosity of thin porous layer.
Porous medical metal thin layer (2) is distributed in the respective surfaces that tibial tray contacts with patient's sclerotin, can cover the surface of 1% ~ 99%;
The mean porosities scope of porous medical metal thin layer (2) is 1% ~ 99%.
Advantage of the present invention is:
The present invention makes artificial knee joint tibial tray by casting or forging, and ensure that intensity and the mechanical property of tibial tray.Be fabricated to porous medical metal thin layer (2) by increasing material again and customize optimum porosity, bone can be conducive to substantially and depend on and Bone Ingrowth.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention structural representation (wherein thin porous layer is distributed in the part surface of tibial tray).
Detailed description of the invention
As shown in Figure 1, the invention provides a kind of artificial knee joint tibial tray, make by casting or forging.Then set up the model with the thin porous layer of optimum porosity (such as 40%) in a computer, then by laser or high-power electron beam melting medical metal powder, this artificial knee joint tibial tray obtains required thin porous layer.
Claims (1)
1. the artificial knee joint tibial tray (1) of band thin porous layer improved, is characterized in that making by casting or forging, then is manufactured on by increasing material the respective surfaces that tibial tray contacts with patient's sclerotin and forms porous medical metal thin layer (2); The coverage of this porous medical metal thin layer (2) can customize, and is distributed in the respective surfaces that tibial tray contacts with patient's sclerotin, can cover the surface of 1% ~ 99%; The mean porosities scope of this porous medical metal thin layer (2) is 1% ~ 99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453388.5A CN105105886A (en) | 2015-07-29 | 2015-07-29 | Improved artificial knee joint tibial tray with porous film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453388.5A CN105105886A (en) | 2015-07-29 | 2015-07-29 | Improved artificial knee joint tibial tray with porous film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105105886A true CN105105886A (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510453388.5A Pending CN105105886A (en) | 2015-07-29 | 2015-07-29 | Improved artificial knee joint tibial tray with porous film and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105105886A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252370A (en) * | 2017-01-16 | 2017-10-17 | 吴栋 | A kind of joint prosthesis tibial tray and preparation method thereof |
| CN107280812A (en) * | 2017-07-18 | 2017-10-24 | 优适医疗科技（苏州）有限公司 | A kind of artificial knee joint prosthesis |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040133283A1 (en) * | 1999-03-12 | 2004-07-08 | Shetty H. Ravindranath | Enhanced fatigue strength orthopaedic implant with porous coating and method of making same |
| US20070142914A1 (en) * | 2005-12-06 | 2007-06-21 | Eric Jones | Laser-produced porous surface |
| CN103328016A (en) * | 2011-01-04 | 2013-09-25 | 利润泰克株式会社 | Implant for in-vivo insertion which is formed with a porous coating layer thereon |
| CN204909738U (en) * | 2015-07-29 | 2015-12-30 | 深圳市义和平有限公司 | Modified area thin porous layer's artificial knee joint tibial tray |
-
2015
- 2015-07-29 CN CN201510453388.5A patent/CN105105886A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040133283A1 (en) * | 1999-03-12 | 2004-07-08 | Shetty H. Ravindranath | Enhanced fatigue strength orthopaedic implant with porous coating and method of making same |
| US20070142914A1 (en) * | 2005-12-06 | 2007-06-21 | Eric Jones | Laser-produced porous surface |
| CN103328016A (en) * | 2011-01-04 | 2013-09-25 | 利润泰克株式会社 | Implant for in-vivo insertion which is formed with a porous coating layer thereon |
| CN204909738U (en) * | 2015-07-29 | 2015-12-30 | 深圳市义和平有限公司 | Modified area thin porous layer's artificial knee joint tibial tray |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107252370A (en) * | 2017-01-16 | 2017-10-17 | 吴栋 | A kind of joint prosthesis tibial tray and preparation method thereof |
| CN107280812A (en) * | 2017-07-18 | 2017-10-24 | 优适医疗科技（苏州）有限公司 | A kind of artificial knee joint prosthesis |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151202 |
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| WD01 | Invention patent application deemed withdrawn after publication |