Abstract:The development status and existing problems of the joint locking mechanism of minimally invasive surgery robot guided by computerized tomography(CT) are analyzed.The principle of robot joint friction torque and the in?uence factors on friction torque are discussed.According to the deficiencies existed in the locking structure of current medical robot,three locking structures of minimally invasive surgery robot with CT navigation are presented based on joint friction theory,and their working principles and realization forms are expatiated respectively.Experiments are made on different structures to compare their performance,and the locking structure of robot joint with exterior friction ring is determined.It is validated that robot system with the presented structure can meet the requirements of clinical operation for minimally invasive surgery with CT navigation.
[1] 田田苗,宗光华,张启先.新应用领域的机器人——医疗外科机器人[J].机器人技术与应用,1996,(2):7~9.Wang Tian-miao,Zong Guang-hua,Zhang Qi-xian.A robot for new application-surgical robot[J].Robot Technique and Application,1996,(2):7~9.
[2] 杜志江,孙立宁,富历新.外科手术机器人技术发展现状及关键技术分析[J].哈尔滨工业大学学报,2003,35(7):773~777.Du Zhi-jiang,Sun Li-ning,Fu Li-xin.Present status and key techniques of surgical robotics[J].Journal of Harbin Institute of Technology,2003,35(7):773~777.
[3] 陈寅,林良明,高立明,等.微型电了机械系统应用于微创外科手术的研究[J].中国医疗器械杂志,2000,24(5):283~286.Chen Yin,Lin Liang-ming,Gao Li-ming,et al.Applications of micromechatronics in minimally invasive surgery[J].Chinese Journal of Medical Instrumentation,2000,24(5):283~286.
[4] Patriciu A,Solomon S,Kavoussi L R,et al.Robotic kidney and spine percutaneous procedures using a new laser-based CT registration method[A].Proceedings of the 4th International Conference on Medical Image Computing and Computer-Assisted Intervention[C].London,UK:Springer,2001.249~257.
[5] 王洪武.现代肿痛靶向治疗技术[M].北京:中国医药科技出版社,2005:77~123.Wang Hong-wu.Modern Targeted Therapy Technique for Tumors[M].Beijing:China Medicinal Science and Technology Press,2005:77~123.
[6] 柴明晓.一种液压锁紧平面多路阀[P].中国:97234994.4,1999-03-04.Cai Ming-xiao.A Multi-route Plane Valve Based on Hydraulically Locked-up Structure[P].China:97234994.4,1999-03-04.
[7] 潘保安.锁紧力可调的液压锁紧缸[P].中国:.01262152.8,2002-07-10.Pan Bao-an.A Hydraulically Locked-up Jar with Aajustable Locking Force[P].China:01262152.8,2002-07-10.
[8] 潘高峰.双动液压机内外滑块液压锁紧机构[P].中国:200520122977.7,2006-12-13.Pan Gao-feng.A hydraulically Locked-up Mechanism of the Inner and Exterior Slide Block of Bidirectional Hydraulic Machine[P].China:200520122977.7,2006-12-13.
[9] 温诗铸,黄平.摩擦学原理[M].北京:清华大学出版社,2002.Wen Shi-zhu,Huang Ping.The Principle of Tribology[M].Beijing:Tsinghua University Press,2002.
[10] Bowden F P,Tabor D.The Friction and Lubrication of Solids:Part 2[M].Oxford,UK:Oxford University Press,1964.
[11] 江一麟.摩擦磨损计算原理[M].北京:机械工业出版社,1982.Wang Yi-lin.The Principle of Friction and Abrasion[M].Beijing:China Machine Press,1982.
[12] 卢长耿,李金良.液压控制系统的分析与设计[M].北京:煤炭工业出版社,1991.LU Chang-geng,LI Jin-liang.Analysis and Design of Hydraulic Control System[M].Beijing:Coal Industry Press,1991.