| Presentation | 1998/3/20 Improvement in wear durability of friction surface of artificial hip joint Jitsuto SHIKATA, Ikuya NISHIMURA, Toshiyuki SHIMOOKA, Toshio YUHTA, Koichi SHIMIZU, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | One of the reasons of osteolysis has been recognized to be the wear particles of ultra-high molecular weight polyethylene (UHMWPE). We examined the effectiveness of "patterning" and "high sphericity" to prolong the life of an artificial hip joint by preventing the production of the wear debris. The artificial hip joints used in this study were those commercially available for implantation. A pendulum hip joint simulator was developed for friction tests. The load was 200kgf on the friction surface and the range of swing was 60 degrees. The number of swings was one million in the frequency of 20 cycles per minutes. The wear durability was evaluated in the measurements of a friction coefficient, the weight-loss due to wear and in the observation of surface roughness of the joint cup. The results of this study suggests that "patterning" and "high sphericity" have a promising potential to mitigate the problem of osteolysis by the improvement in wear durability. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Artificial hip joint / Wear / Patterning / High sphericity |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 1998/3/20(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement in wear durability of friction surface of artificial hip joint |
| Sub Title (in English) | |
| Keyword(1) | Artificial hip joint |
| Keyword(2) | Wear |
| Keyword(3) | Patterning |
| Keyword(4) | High sphericity |
| 1st Author's Name | Jitsuto SHIKATA |
| 1st Author's Affiliation | Graduate School of Engineering, Hokkaido University() |
| 2nd Author's Name | Ikuya NISHIMURA |
| 2nd Author's Affiliation | Graduate School of Engineering, Hokkaido University |
| 3rd Author's Name | Toshiyuki SHIMOOKA |
| 3rd Author's Affiliation | Graduate School of Engineering, Hokkaido University |
| 4th Author's Name | Toshio YUHTA |
| 4th Author's Affiliation | Graduate School of Science and Engineering, Tokyo Denki University |
| 5th Author's Name | Koichi SHIMIZU |
| 5th Author's Affiliation | Graduate School of Engineering, Hokkaido University |
| Date | 1998/3/20 |
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| Volume (vol) | vol.97 |
| Number (no) | 622 |
| Page | pp.pp.- |
| #Pages | 6 |
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