A Study on Improvement of Lubrication Properties for the Frictional Surfaces of the Artificial Joints.
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- NISHIMURA Ikuya
- 北海道大学大学院工学研究科
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- HIGA Masaru
- 北海道大学大学院工学研究科
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- YUHTA Toshio
- 東京電機大学
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- ITO Hiroshi
- 北海道大学医学部
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- TANINO Hiromasa
- 旭川医科大学
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- OOMIZU Nobuyuki
- 旭川医科大学
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- MURABAYASHI Shun
- 北海道大学大学院工学研究科
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- MITAMURA Yoshinori
- 北海道大学大学院工学研究科
Bibliographic Information
- Other Title
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- 人工股関節しゅう動面の潤滑特性向上に関する研究
- ジンコウ コ カンセツシュウドウメン ノ ジュンカツ トクセイ コウジョウ ニ カンスル ケンキュウ
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Abstract
New surface structure with regular patterning for the frictional surfaces of the artificial joints was designed to improve the wear problems. The lubrication properties for the cup ( ultrahigh molecular weight polyethylene, UHMWPE) vs. ball ( Co-Cr alloy) were studied to evaluate the wear and surface roughness. The surface structure is the dents pattern which has diameter of 0.5mm, pitch of 1.2mm. In this study, such surface patterns were applied to artificial hip joints, and the effects of regular patterning on the frictional surface were investigated by using a joint simulator. The amount of wear of the cup that was in contact with the patterned head was only half that of the cup that was in contact with the non-patterned head, and the surface roughness of the cup with a non-patterned head was three-times greater than that of the cup with a patterned head. These results demonstrates that the lubrication properties can be improved by patterning of the frictional surface of the artificial joint. Consequently, the life of the artificial joint can be extended by the patterning on the frictional surfaces.
Journal
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- Journal of the Japan Society for Precision Engineering
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Journal of the Japan Society for Precision Engineering 66 (10), 1594-1598, 2000
The Japan Society for Precision Engineering
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Keywords
Details 詳細情報について
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- CRID
- 1390001204797226112
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- NII Article ID
- 110001372788
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- NII Book ID
- AN1003250X
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- ISSN
- 1882675X
- 09120289
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- NDL BIB ID
- 5502375
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed