Lubrication Mechanism in Natural and Artificial Joints

自然关节和人工关节的润滑机制

• 批准号: 07044159
• 负责人: MURAKAMI Teruo
• 金额: $ 4.16万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07044159/
• 关键词: Natural Synovial Joint; Artificial Joint; Lubrication Mechanism; Elastohydrodynamic Lubrication; Boundary Lubrication; Artificial Cartilage; Joint Simulator; Biotribology; 潤滑機構; 環境潤滑

The object of this research is to conduct the joint research between Kyushu University, The University of Leeds and University of Bradford to elucidate the lubrication mechanism in natural and artificial jointsMembers of this joint research visited Japan or United Kingdom for mutual discussion. Furthermore, during their visiting the presentations of papers on this research project were carried out at the international conferences, i.e., at the International Conference on New Frontiers in Biomechanical Engineering, JSME,the First World Tribology Congress and the World Congress on Medical Physics and Biomedical Engineering.In this joint study, the following results were shown.On the lubrication mechanism in natural synovial joints, the fundamental mechanism in adaptive multimode lubrication was discussed on the basis of numerical analysis of elastohydrodynamic lubrication and experimental evaluation of frictional behavior by pendulum tests of porcine joints, and sliding tests for Langmui … More r-Blodgett film or artificial materials against articular cartilage. Fluid film formation in some joint models during walking was evaluated by simulator tests and compared with numerical results. On boundary lubricating ability, the effectiveness of phospholipids and proteins was clarified by using saline solutions of different concentration of sodium hyaluronate.On the lubrication mechanism in artificial joints, the fluid film formation, friction or wear in knee prosthesis models with compliant artificial cartilage such as polyurethane, silicone rubber, polyvinylalcohol (PVA) hydrogel and semi-interpenetrating network (SIPN) hydrogel were evaluated by sumulator or sliding tests. The knee prostheses of elliptical conjunction showed superiority in fluid film formation and frictional behavior during walking for transverse design to longitudinal one with the same contact area. This fact was discussed based on numerical analysis of fluid film formation under walking condition. The friction and wear in existing artificial joints composed of metal or ceramics and ultra-high molecular weight polyethylene were evaluated by simulator tests. The influence of material properties, geometrical design and constituents of lubricants on fluid film formation were summerized. Less

本研究的目的是九州大学、利兹大学和布拉德福德大学进行联合研究，阐明天然和人工关节中的润滑机制，本联合研究成员访问了日本或英国进行相互讨论。此外，在他们访问期间，在国际会议上介绍了关于这一研究项目的论文，即，在生物力学工程新前沿国际会议、JSME、第一届世界摩擦学大会和世界医学物理学和生物医学工程大会上发表了联合研究报告。在这项联合研究中，显示了以下结果。关于自然滑膜关节中的润滑机制，在弹流润滑数值分析和实验评价的基础上，讨论了自适应多模润滑的基本机理，通过猪关节的摆锤试验和Langmui关节的滑动试验， ...更多信息 r-Blodgett膜或人工材料对关节软骨的作用。通过模拟试验对行走过程中关节模型的液膜形成进行了评价，并与数值计算结果进行了比较。在边界润滑能力方面，通过不同浓度的透明质酸钠盐溶液阐明了磷脂和蛋白质的有效性;在人工关节润滑机制方面，通过对聚氨酯、硅橡胶、通过模拟试验或滑动试验对聚乙烯醇（PVA）水凝胶和半互穿网络（SIPN）水凝胶进行了评价。在相同的接触面积下，横置椭圆连接的膝关节假体在行走过程中的流体膜形成和摩擦性能优于纵置。通过对行走条件下流体膜形成过程的数值分析，对这一现象进行了讨论。采用模拟试验方法，对现有金属、陶瓷与超高分子量聚乙烯人工关节的摩擦磨损性能进行了评价。综述了润滑剂的材料特性、几何设计和组分对油膜形成的影响。少

项目成果

T.Murakami: "The Adaptive Multimode Lubrication in Knee Prostheses with Artificial Cartilage during Walking" Elastohydrodynamics'96, Elsevier. 371-382 (1997)

T.Murakami：“步行期间人工软骨膝关节假体的自适应多模式润滑”弹性流体动力学96，爱思唯尔。

J.Fisher: "Comparison of the wear of aged and non-aged ultrahigh molecular weight polyethylene sterilizedby gamma irradiation and by gas plasma" J.Mater.Sci.8. 375-378 (1997)

J.Fisher：“通过伽马辐射和气体等离子体灭菌的老化和未老化超高分子量聚乙烯的磨损比较”J.Mater.Sci.8。

H.Higaki: "Lubricating Ability of Langmuir-Blodgett Films as Boundary Lubricating Films on Articular Surfaces" JSME International Journal, Series C. Vol.40, No.4. 776-781 (1997)

H.Higaki：“Langmuir-Blodgett 薄膜作为关节表面边界润滑膜的润滑能力”JSME 国际期刊，C 系列，第 40 卷，第 4 期。

H.Higaki: "Lubricating Ability of Langmuir-Blodgett Films as Boundary Lubricating Films on Articular Surfaces" JSME International Journal,Series C. 40・4. 776-781 (1997)

H.Higaki：“Langmuir-Blodgett 薄膜作为关节表面边界润滑膜的润滑能力”JSME 国际期刊，系列 C. 776-781 (1997)。

N.Ohtsuki: "Influence of Geometry of Conjunction on Elastohydrodynamic Film Formation in Knee Prostheses with Compliant Layer" Elastohydrodynamics '96. 349-359 (1997)

N.Ohtsuki：“连接几何形状对具有柔顺层的膝关节假体中弹性流体动力学薄膜形成的影响”弹性流体动力学96。