237 マイクロポケットを有する大腿骨コンポーネントと PVA ハイドロゲル脛骨軟骨を持つ斬新な人工膝に関する研究

概要

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This paper presents an experimental study of a novel artificial knee joint with micro-pocket-covered femoral component and PVA-Hydrogel tibial cartilage. Femoral components were considered as circular plates made in stainless steel, with various percentages of the total surface covered by micro-pockets and different depths of the micro-pockets. PVA-Hydrogel with various water contents and polymerization degrees were manufactured by the cyclic freezing/thawing and annealing methods. Wear experiments were performed on a knee motion simulator. Variation of the wear factor versus the number of walking cycles was established for different types of the artificial cartilage against various configurations of the femoral component. Results obtained for micro-pocket-covered and smooth femoral components are compared in order to illustrate the influence of the micro-pocket geometry upon the wear factor.
社団法人日本機械学会の論文
2003-01-20