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，以阐明自然关节和人工关节的润滑机制。该联合研究的成员访问了日本或英国进行相互讨论。此外，访问期间，该研究项目的论文还在生物力学工程新前沿国际会议、JSME、首届世界摩擦学大会、世界医学物理与生物医学工程大会等国际会议上进行了宣讲。在本次联合研究中，取得了以下成果。 基于弹流润滑数值分析、猪关节摆锤试验和 Langmui … 更多 r-Blodgett 薄膜或人造材料对关节软骨的滑动试验对摩擦行为的实验评估，讨论了多模式润滑。通过模拟器测试评估了行走过程中一些关节模型中液膜的形成，并与数值结果进行了比较。在边界润滑能力方面，通过使用不同浓度的透明质酸钠盐水溶液阐明了磷脂和蛋白质的有效性。在人工关节的润滑机制方面，具有顺应性人工软骨（例如聚氨酯、硅橡胶、聚乙烯醇（PVA）水凝胶和聚氨酯）的膝关节假体模型中的液膜形成、摩擦或磨损 通过累加器或滑动测试评估半互穿网络（SIPN）水凝胶。椭圆连接膝关节假体在接触面积相同的情况下，横向设计比纵向设计在液膜形成和步行时摩擦行为方面表现出优越性。基于步行条件下液膜形成的数值分析讨论了这一事实。通过模拟试验评估了现有金属或陶瓷与超高分子量聚乙烯组成的人工关节的摩擦磨损情况。总结了材料特性、几何设计和润滑剂成分对液膜形成的影响。较少的

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。