CN105105882A - Improved artificial knee joint femoral prosthesis with rough film and preparation method thereof - Google Patents
Improved artificial knee joint femoral prosthesis with rough film and preparation method thereof Download PDFInfo
- Publication number
- CN105105882A CN105105882A CN201510445231.8A CN201510445231A CN105105882A CN 105105882 A CN105105882 A CN 105105882A CN 201510445231 A CN201510445231 A CN 201510445231A CN 105105882 A CN105105882 A CN 105105882A
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- Prior art keywords
- femoral prosthesis
- artificial knee
- knee joint
- thin layer
- improved artificial
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Abstract
The invention relates to an improved artificial knee joint femoral prosthesis which is characterized in that the improved artificial knee joint femoral prosthesis is cast or forged, and then a rough medical film is formed on the corresponding surface, being in contact with a bone of a patient, of the femoral prosthesis through additive manufacturing. The strength and mechanical properties of the femoral prosthesis are guaranteed by casting and forging, and then the optimal roughness is customized for the rough film through the additive manufacturing, so that bone attachment or bone ingrowth can be facilitated to the maximum. The improved artificial knee joint femoral prosthesis 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 thighbone prosthese of particularly a kind of improvement.
Background technology
Artificial knee-joint thighbone prosthese is body implant, the alternative being implanted in human femur under loading 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 thighbone prosthese by casting or forging, after form coarse thin layer through sandblasting at femoral prosthesis (1), or hydroxyapatite or titanium are formed coarse thin layer by thermal spraying at femoral prosthesis (1); Also artificial knee-joint thighbone prosthese and rough surface thin layer is made into integration by increasing material manufacture.But by casting and forge the artificial knee-joint thighbone prosthese 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 thighbone prosthese 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 femoral prosthesis, 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 thighbone prosthese of improvement, under the prerequisite ensureing mechanical property and mechanical strength, the surface roughness with Bone Ingrowth can be depended on, the defect easily loosening after overcoming existing artificial knee-joint thighbone Using prosthesis and may rupture for the most applicable bone of femoral prosthesis customization.
Task of the present invention realizes by this way:
A kind of artificial knee-joint thighbone prosthese, first makes by casting or forging, then is manufactured on femoral prosthesis (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 femoral prosthesis (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: the present invention makes artificial knee-joint thighbone prosthese by casting or forging, and ensure that intensity and the mechanical property of femoral prosthesis.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 embodiment of the present invention structural representation (wherein coarse thin layer is distributed in the part surface of femoral prosthesis).
Detailed description of the invention
As shown in Figure 1, the invention provides a kind of artificial knee-joint thighbone prosthese, make 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 thighbone prosthese obtains required coarse thin layer.
Claims (1)
1. the artificial knee-joint thighbone prosthese of the coarse thin layer of band improved, is characterized in that making by casting or forging, then is manufactured on femoral prosthesis (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 femoral prosthesis (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 |
|---|---|---|---|
| CN201510445231.8A CN105105882A (en) | 2015-07-27 | 2015-07-27 | Improved artificial knee joint femoral prosthesis with rough film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445231.8A CN105105882A (en) | 2015-07-27 | 2015-07-27 | Improved artificial knee joint femoral prosthesis with rough film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105105882A true CN105105882A (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510445231.8A Pending CN105105882A (en) | 2015-07-27 | 2015-07-27 | Improved artificial knee joint femoral prosthesis with rough film and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105105882A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109688979A (en) * | 2016-08-03 | 2019-04-26 | 泰坦脊椎公司 | Enhance the implant surface of self-bone grafting |
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 |
| CN204909736U (en) * | 2015-07-27 | 2015-12-30 | 深圳市义和平有限公司 | Artificial knee joint femoral prosthesis of coarse thin layer in modified area |
-
2015
- 2015-07-27 CN CN201510445231.8A patent/CN105105882A/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 |
| CN204909736U (en) * | 2015-07-27 | 2015-12-30 | 深圳市义和平有限公司 | Artificial knee joint femoral prosthesis of coarse thin layer in modified area |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151202 |
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| WD01 | Invention patent application deemed withdrawn after publication |