新鲜尸体股骨干钻削进给力与扭矩的测试研究  

Testing and Research of Drilling Feed Force on Fresh Corpse Femoral

作　　者：李长树 卢启贵 黄东红 李政 沈云龙 郑英慧 陆文杰 唐雷[2] 

机构地区：[1]深圳市平乐骨伤科医院骨关节科 [2]南方医科大学人体解剖教研室

出　　处：《中国数字医学》2015年第6期57-61,共5页China Digital Medicine

基　　金：国家自然基金重大项目(编号:61190120;61190122;61190123)~~

摘　　要：目的:采集新鲜尸体股骨干不同骨质层和骨段的钻削进给力与扭矩数据,为骨科虚拟现实手术系统钻削力反馈信号的输出提供特性依据。方法:改装万能材料试验机和手持可调速电钻(钻头直径d=Φ4.5、Φ5.0、Φ5.5mm)构建生物组织机械性能参数采集系统,分别以n=500r/min、800r/min、1200r/min电钻转速和v=10mm/min、20mm/min、30mm/min进给速度采集9具新鲜尸体股骨干405个标记点的钻削进给力F与扭矩M,分析其变化特性与相应组织和部位的关系。结果:新鲜尸体股骨干的钻削进给力F与扭矩M大小波动范围分别为26.47-68.29N与0.11-1.81N×m;当d=4.5mm、v=10mm/min、n=1200r/min时,钻削进给力最小min=31.8N;当d=4.5mm、v=10mm/min、n=500r/min时,钻削扭矩最小min=0.14N×m;当d=5.5mm、v=30mm/min、n=500r/min时,钻削进给力最大max=65.95N;当d=5.5mm、v=30mm/min、n=1200r/min时,钻削扭矩最大max=1.74N×m。骨骼钻削进给力及扭矩与电钻转速、进给速度、钻头直径、骨骼密度关系密切,其中电钻转速越小、进给速度越大、钻头直径越大、骨骼密度越密,骨骼钻削进给力越大,反之越小;电钻转速越大、进给速度越大、钻头直径越大、骨骼密度越密,骨骼钻削扭矩越大,反之越小。结论:本实验所获新鲜尸体股骨干钻削进给力与扭矩数据及其变化趋势,可为虚拟骨科手术系统力反馈输出信号设置提供依据。Objective： In order to collect the size and trend of drilling feed force and torque on the different layer of fresh cadaver femoral bone,which will provide a basis signal of collecting and outputting drilling feed force feedback in orthopedic virtual surgery system. Methods： The biological bone drilling feed force testing system is built by modifying the universal material testing machine with adjustable speed electric drill （Φ4.5、5.0、5.5mm drill bit）; Collect the magnitude of drilling feed force and torque of 9 fresh cadaver femoral shaft （405drilling markers） with three different rotate speed （n=500r/min、800 r/min、1200 r/min） and three different feed speed （v=10mm/min、20 mm/min、30 mm/min）, and analysis their variation trends. Results： The fluctuation range of fresh cadaver femoral drilling feed force F and torque M were 26.47-68.29N and 0.11-1.81N×m, respectively; When d=4.5mm, v=10mm/min, n=1200r/min, the drilling feed force was least min=31.8N; When d=4.5mm, v=10mm/min, n=500r/min, the drilling torque was least min=0.14N×m;When d=5.5mm, v=30mm/min, n=500r/min, the drilling feed force was largest max=65.59N;When d=5.5mm, v=30mm/min, n=1200r/min, the drilling torque was least max=1.74N×m. The size and trend of drilling feed force and torque have a close relationship with the drill speed, feed speed, drill diameter, bone density. The drill speed is smaller, the feed speed is bigger, the diameter of drill bit is greater, and with a higher bone＇s density, the size of drilling feed force is larger, vice versa. The drill speed is larger, the feed speed is bigger, the diameter of drill bit is greater, and with a higher bone＇s density, the size of drilling torque is larger, vice versa. Conclusions：Accurate fresh cadaver femoral drilling feed force and torque data, which were obtained in this experiment, could provide reliable basis for the force-feedback signal output of the virtual orthopedic surgery system.

关 键 词：新鲜尸体 股骨干 虚拟手术 钻削 力反馈 

分 类 号：R322-3[医药卫生—人体解剖和组织胚胎学] TP399[医药卫生—基础医学]