CAJ | 학술논문

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。
목적：채집신선시체고골간불동골질층화골단적찬삭진급력여뉴구수거，위골과허의현실수술계통찬삭력반궤신호적수출제공특성의거。방법：개장만능재료시험궤화수지가조속전찬（찬두직경d=Φ4.5、Φ5.0、Φ5.5mm）구건생물조직궤계성능삼수채집계통，분별이n＝500r/min、800r/min、1200r/min전찬전속화v＝10mm/min、20mm/min、30mm/min진급속도채집9구신선시체고골간405개표기점적찬삭진급력F여뉴구M，분석기변화특성여상응조직화부위적관계。결과：신선시체고골간적찬삭진급력F여뉴구M대소파동범위분별위26.47-68.29N여0.11-1.81N×m；당d＝4.5mm、v＝10mm/min、n＝1200r/min시，찬삭진급력최소 min＝31.8N；당d＝4.5mm、v＝10mm/min、n＝500r/min시，찬삭뉴구최소 min＝0.14N×m；당d＝5.5mm、v＝30mm/min、n＝500r/min시，찬삭진급력최대 max＝65.95N；당d＝5.5mm、v＝30mm/min、n＝1200r/min시，찬삭뉴구최대 max＝1.74N×m。골격찬삭진급력급뉴구여전찬전속、진급속도、찬두직경、골격밀도관계밀절，기중전찬전속월소、진급속도월대、찬두직경월대、골격밀도월밀，골격찬삭진급력월대，반지월소；전찬전속월대、진급속도월대、찬두직경월대、골격밀도월밀，골격찬삭뉴구월대，반지월소。결론：본실험소획신선시체고골간찬삭진급력여뉴구수거급기변화추세，가위허의골과수술계통력반궤수출신호설치제공의거。
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.