Mechanical Interaction between Vitamin E-Containing Ultrahigh Molecular Weight Polyethylene and Co-28Cr-6Mo Alloy in Water

Journal of Biomechanical Science and Engineering

Hiroyuki KOHNO²  Masato HASHIMOTO³  Naohide TOMITA¹  Daisuke HAMADA¹  Kunihiko FUJIWARA⁵  Koji YAMAMOTO¹  Yasushi OKUBO¹  Ken IKEUCHI⁴  Shin-ichiro MORI¹ 

[1] Graduate School of Engineering, Kyoto University;NextMED Development Office, Yasojima Proceed Corporation;Graduate School of Science and Technology, Kyoto Institute of Technology;Department of Clinical Engineering, Suzuka University of Medical Science;Nakashima Medical Corporation

关键词: Ultrahigh Molecular Weight Polyethylene (UHMWPE);    Vitamin E (dl-α-Tocopherol);    Wear;    Transfer Film Formation;    Pull-Away Force;   

DOI  :  10.1299/jbse.4.166

来源: Japan Society of Mechanical Engineers

【 摘 要 】

References(14)Cited-By(2)The mechanical interaction between ultrahigh molecular weight polyethylene (UHMWPE) and a Co-28Cr-6Mo alloy in water was examined in order to clarify the wear resistance mechanism of vitamin E-containing UHMWPE in knee prostheses. The sample UHMWPE was pressed and rubbed against the surface of the Co-28Cr-6Mo alloy in water by using a computer-controlled pin-on-disk wear test apparatus. The formation of a UHMWPE transfer film on the surface of the Co-28Cr-6Mo alloy was reduced by the addition of vitamin E to UHMWPE. The pull-away force between UHMWPE and the Co-28Cr-6Mo alloy was also reduced by the addition of vitamin E. These results suggest that vitamin E reduces the attraction between UHMWPE and the surface of the Co-28Cr-6Mo alloy.

【 授权许可】

Unknown