CN105105874A - Improved artificial hip joint femoral stem with porous film and preparation method thereof - Google Patents
Improved artificial hip joint femoral stem with porous film and preparation method thereof Download PDFInfo
- Publication number
- CN105105874A CN105105874A CN201510445251.5A CN201510445251A CN105105874A CN 105105874 A CN105105874 A CN 105105874A CN 201510445251 A CN201510445251 A CN 201510445251A CN 105105874 A CN105105874 A CN 105105874A
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- Prior art keywords
- hip joint
- artificial hip
- femoral stem
- improved artificial
- bone
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Abstract
The invention relates to an improved artificial hip joint femoral stem which is characterized in that the improved artificial hip joint femoral stem 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 femoral stem through additive manufacturing. The strength and mechanical properties of the femoral stem are guaranteed by casting and forging, and then the optimal aperture is customized for the porous medical metal film through the additive manufacturing, so that bone attachment or bone ingrowth can be facilitated to the maximum. The improved artificial hip joint femoral stem is suitable for a bone joint replacement surgery for human hip joint lesions.
Description
Technical field
The present invention relates to the artificial joint of medical science osteoarticular field, the artificial hip joint stem of particularly a kind of improvement.
Background technology
Artificial hip joint stem is body implant, the alternative of implant into body femoral bone cavitas medullaris when needing to carry out orthopaedics replacement operation for human hip pathological changes, make patient recover the physiological function of hip joint to a certain extent, alleviating pain, improve motion and improve the quality of living.
In prior art, make artificial hip joint femoral shaft by casting or forging, after form thin porous layer through sandblasting at handle body (1), or hydroxyapatite or titanium are formed thin porous layer by thermal spraying at handle body (1); Also artificial hip joint femoral shaft and porous surface thin layer is made into integration by increasing material manufacture.But by casting and forge the artificial hip joint femoral shaft 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 hip joint femoral shaft 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 stem, 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 hip joint stem of improvement, under the prerequisite ensureing mechanical property and mechanical strength, the aperture with Bone Ingrowth can be depended on for the most applicable bone of femoral stem customization, overcome the defect easily loosening and may rupture after existing artificial hip joint femoral shaft is implanted.
Task of the present invention realizes by this way:
A kind of artificial hip joint femoral shaft, first makes by casting or forging, then is manufactured on handle body (1) formation porous medical metal thin layer (2) by increasing material, and customizes optimum aperture for this thin porous layer.
Can according to the sclerotin difference of patient and biomechanics requirement, for patient customizes coverage rate and the aperture of thin porous layer.
Thin porous layer (2) is distributed in the respective surfaces that handle body (1) contacts with patient's sclerotin, can cover the surface of 1% ~ 99%;
The average pore size scope of thin porous layer (2) is 1 ~ 999 micron.
Advantage of the present invention is: the present invention makes artificial hip joint femoral shaft by casting or forging, and ensure that intensity and the mechanical property of femoral stem.Be fabricated to thin porous layer (2) by increasing material again and customize optimum aperture, 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 handle body).
Detailed description of the invention
As shown in Figure 1, the invention provides a kind of artificial hip joint femoral shaft, make by casting or forging.Then set up the model with the thin porous layer in optimum aperture (such as 200 microns) in a computer, then by laser or high-power electron beam melting medical metal powder, this artificial hip joint femoral shaft obtains required thin porous layer.
Claims (1)
1. the artificial hip joint femoral shaft 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 handle body (1) contacts with patient's sclerotin and forms porous medical metal thin layer (2); The coverage of this thin porous layer (2) can customize, and is distributed in the respective surfaces that handle body (1) contacts with patient's sclerotin, can covers the surface of 1% ~ 99%; The aperture of this porous medical metal thin layer (2) can customize, and average pore size scope is 1 ~ 999 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445251.5A CN105105874A (en) | 2015-07-27 | 2015-07-27 | Improved artificial hip joint femoral stem with porous film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510445251.5A CN105105874A (en) | 2015-07-27 | 2015-07-27 | Improved artificial hip joint femoral stem with porous film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105105874A true CN105105874A (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510445251.5A Pending CN105105874A (en) | 2015-07-27 | 2015-07-27 | Improved artificial hip joint femoral stem with porous film and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN105105874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105678745A (en) * | 2015-12-30 | 2016-06-15 | 汪涛 | Printing method and apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2341592Y (en) * | 1998-09-23 | 1999-10-06 | 北京京航生物医学工程公司 | Porous face artificial joint |
| US20040133283A1 (en) * | 1999-03-12 | 2004-07-08 | Shetty H. Ravindranath | Enhanced fatigue strength orthopaedic implant with porous coating and method of making same |
| CN201164513Y (en) * | 2008-03-03 | 2008-12-17 | 曼德卡姆有限公司 | Artificial hip joint and femur shaft |
| 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 |
| CN204909733U (en) * | 2015-07-27 | 2015-12-30 | 深圳市义和平有限公司 | Modified area thin porous layer's artifical hip joint femoral stem |
-
2015
- 2015-07-27 CN CN201510445251.5A patent/CN105105874A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2341592Y (en) * | 1998-09-23 | 1999-10-06 | 北京京航生物医学工程公司 | Porous face artificial joint |
| US20040133283A1 (en) * | 1999-03-12 | 2004-07-08 | Shetty H. Ravindranath | Enhanced fatigue strength orthopaedic implant with porous coating and method of making same |
| CN201164513Y (en) * | 2008-03-03 | 2008-12-17 | 曼德卡姆有限公司 | Artificial hip joint and femur shaft |
| 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 |
| CN204909733U (en) * | 2015-07-27 | 2015-12-30 | 深圳市义和平有限公司 | Modified area thin porous layer's artifical hip joint femoral stem |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105678745A (en) * | 2015-12-30 | 2016-06-15 | 汪涛 | Printing method and apparatus |
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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 |