Elucidation of Adaptive Multimode Lubrication Mechanism in Natural Synovial Joints from Hierarchic and Microscopic Viewpoints

从层次和微观角度阐明自然滑膜关节的自适应多模式润滑机制

• 批准号: 09480254
• 负责人: MURAKAMI Teruo
• 金额: $ 8.9万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09480254/
• 关键词: Natural Synovial joints; Adaptive Multimode Lubrication; Biotribology; Biomechanics; Articular Cartilage; Synovial Fluid; Phospholipid; Atomic Force Microscopy; 多モード適用潤滑; 関節シミュレータ; 原子間力顕微鏡; 人工軟骨; 境界潤滑

The object of this research is to elucidate the adaptive multimode lubrication mechanism in natural synovial joints from the hierarchic and microscopic viewpoints.The systematic investigation was performed to clarify the adaptive multimode lubrication mechanism in natural synovial joints. Experimental evaluation of fluid film formation in knee joint model in simulator and numerical analysis showed the important role of elastohydrodynamic lubrication during walking. In friction tests of pig shoulder joints by pendulum method, the influence of hyaluronate concentration on frictional behavior under high and low load conditions was clarified in related to removal of adsorbed films or addition of phospholipid or proteins. The boundary lubrication by adsorbed film composed of phospholipids, proteins and glycoproteins was clearly shown by an increase in friction after removal of adsorbed film. Addition of liposome of phospholipid liposome and gamma-globulin was effective in lowering of fricti … More on. Reciprocating tests of sliding pair of articular cartilage and Langmuir-Blodgett film formed on glass plate indicated the superiority of mixed film of phospholipid and protein to phospholipid film. The protecteive effect by mixed adsorbed film was confirmed in in-vivo tests. The atomic force microscopy (AFM) was applied to observe the changes in articular cartilage surfaces at different friction levels during rubbing process. The corresponding force-distance curves at several friction levels were examined. These results indicated that lubricating roles of adsorbed film and gel film changes with progressive wear process. The tribological property of polyvinyl-alcohol (PVA) hydrogel specimen as artificial cartilage was compared with that of natural articular cartilage to clarify the difference between both materials. The three-dimensional numerical analysis was planned to examine the influence of shearing stimulation on chondrocyte in articular cartilage which was found in continuous shearing test to monolayer of cultured chondrocyte in cone/plate viscometer inducing the remarkable increase in interleukin 6 (IL-6). Less

从层次和显微镜阐明自然滑膜中的自发性机制的目的。进行了系统的研究。数值分析表明，在行走过程中，弹性水力动力学润滑的作用是透明化的关节，透明质酸对高和低低低的摩擦式行为的影响通过磷脂的吸附膜在摩擦膜上的摩擦膜上增加。使用原子力显微镜（AFM）观察摩擦的关节软骨表面变化通过渐进磨损过程的变化。圆锥体的计算机诱导白介素6（IL-6）的显着增加

项目成果

H.Higaki: "The lubricating ability of biomembrane models with dipalmitoyl phosphatidylcholine and gamma-globulin" Proc.Instn.Mech.Engrs.Vol 212, Part.H. 337-346 (1998)

H.Higaki：“二棕榈酰磷脂酰胆碱和丙种球蛋白生物膜模型的润滑能力”Proc.Instn.Mech.Engrs.Vol 212，Part.H。

日垣秀彦: "靭帯切離による変形性関節症モデル家兔に対するリン脂質リポソームの関節腔内注入効果" 日本臨床バイオメカニクス学会誌. 19巻. 131-135 (1998)

Higaki Higaki：“关节内注射磷脂脂质体对韧带横断引起的骨关节炎模型的影响”日本临床生物力学学会杂志 19. 131-135 (1998)。

N.Nakanishi: "Effects of Electric Field on Lubricating Ability of Synovia Constituents (2nd Report, Influence of Lubrication Mode)" Trans.Jpn.Soc.Mech.Engrs.64-622 C. 2224-2231 (1998)

N.Nakanishi：“电场对滑液成分润滑能力的影响（第二次报告，润滑模式的影响）” Trans.Jpn.Soc.Mech.Engrs.64-622 C. 2224-2231 (1998)

T.Murakami: "The Adaptive Multimode Lubrication in Knee Prostheses with Artificial Cartilage during Walking,Elastohydrodynamics" Elastohydrodynamics'96. 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”弹性流体动力学96。

T.Murakami: "Adaptive multimode Iubrication in natural synovial joints and artificial joints" Proc Instn Mech Engrs. Vol212 PartH. 23-35 (1998)

T.Murakami：“自然滑膜关节和人工关节中的自适应多模式润滑”Proc Instn Mech Engrs。