模拟人体环境的人工髋关节疲劳试验机  

Artificial hip joint fatigue testing machine simulating human environment

作　　者：姜北北[1] 刘亚菲[1] 陈岚[1] 袁小兵[1] 林春花[1] 项华中[1] 

机构地区：[1]上海理工大学医疗器械与食品学院,上海市200093

出　　处：《中国组织工程研究与临床康复》2010年第39期7230-7233,共4页Journal of Clinical Rehabilitative Tissue Engineering Research

摘　　要：背景:人工髋关节模拟试验机主要用于评价关节副生物材料的摩擦磨损特性以及验证理论计算结果与实际的吻合程度,而摩擦学试验的结果受试验设备的影响很大。目的:设计新型人工髋关节模拟试验机温度控制和润滑部分,以使试件在试验过程中产生的摩擦机制、磨损形式与实际使用条件下相一致,从而可以准确、可靠地测试人工关节材料的生物摩擦学特性参数。方法:通过铜丝加热并通过PID(比例-积分-微分)控制对温度进行了调节控制,采用滴注式润滑对磨损关节进行了润滑。结果与结论:经实验观察,对试验机温度控制和润滑部分的设计,能够使人工髋关节模拟试验机更真实地模拟人体环境,从而为临床应用提供较为准确可靠的体外试验数据。BACKGROUND：Artificial hip joint simulator is used to evaluate wearing features and verify accordance between calculation results and actual results. However,testing results of wearing is greatly influenced by testing instrument. OBJECTIVE：To design temperature control and lubrication components of novel artificial hip joint simulator to match the actual wearing mechanism and pattern and to better determine biological wearing parameters of artificial joint materials. METHODS：Through the copper wire heating and proportion-integral-differential control,the temperature control was adjusted,and the drip lubrication was used to lubricate the wearing joints. RESULTS AND CONCLUSION：The experimental observation showed that temperature control and lubrication parts design allows better simulation of human body environment by artificial hip joint simulator,so as to provide a more accurate and reliable in vitro test data for clinical application.

关 键 词：人工髋关节 疲劳 试验机 温度控制 润滑 摩擦 

分 类 号：R318[医药卫生—生物医学工程]