测试新鲜猪股骨干钻削进给力

发布时间：2018-04-14 22:27

  本文选题：猪股骨干 + 虚拟手术　； 参考：《医用生物力学》2014年06期

【摘要】：目的采集新鲜猪股骨干不同骨质层和骨段的钻削进给力数据,为骨科虚拟现实手术系统钻削力反馈信号的输出提供依据。方法改装万能材料试验机和手持可调速电钻(鐖5.0 mm钻头),构建生物骨骼钻削性能参数采集系统,分别以转速n=500,800,1 200 r/min和进给速度v=30,50,70 mm/min采集6具新鲜成熟猪股骨干162个标记点的钻削进给力f,分析其与相应组织和部位的关系。结果新鲜猪股骨干同一标记点双侧骨皮质处进给力最大(fmax=103.63~142.59 N),髓腔处最小(接近于0),股骨干中段进给力(f4,5,6=124.69N)较两端(f1,2,3,7,8,9=121.84 N)大;当v=30 mm/min、n=1 200 r/min时,钻削进给力最小(fmin=106.04 N);当v=70 mm/min、n=500 r/min时,钻削进给力最大(fmax=139.84 N)。结论改装的生物骨骼切削性能参数采集系统能有效采集生物骨骼的钻削进给力数据;骨骼钻削进给力与骨质的组织结构、电钻转速及进给速度有密切关系,其中骨质结构越密、电钻转速越小、进给速度越大,骨骼钻削进给力越大,反之越小。实验所获得新鲜猪股骨干钻削进给力数据及其变化趋势,可为虚拟骨科手术系统力反馈输出信号设置提供依据。
[Abstract]:Objective to collect the feeding force data of different bone layers and segments of the femoral shaft of fresh pigs, and to provide the basis for the output of drilling force feedback signal in orthopedic virtual reality surgery system.Methods the universal material testing machine and the hand-held adjustable speed electric drill (5.0mm drill bit) were modified to construct the collection system of biological skeleton drilling performance parameters.The feeding force f of 162 mark points of femur trunk of 6 fresh mature pigs were collected at the speed of 1 200 r/min at the speed of NM500800 r/min and the feed speed of 50 ~ 70 mm/min respectively, and the relationship between the feeding force and the corresponding tissues and parts was analyzed.Results the maximum feed force at the bilateral bone cortex of fresh pig femur was 103.63 ~ 142.59 Nu, and the lowest in the medullary cavity (near 0 ~ 0 ~ 0 ~ 0, F _ 4 ~ 5 ~ 5 ~ 6124.69 ~ N) was greater than that in the two ends of f _ (1) M ~ (2 +) ~ 3789121.84 N, and the minimum feed force was 106.04 Nu at 30 mm 路min ~ (-1) / min ~ 1 ~ 200 r/min, and 106.04 N ~ (-1) at a time of 30 mm 路min ~ (-1) 路min ~ (-1) ~ 1 ~ 200 r/min, respectively, when the midfemur feed force was 6124.69 N ~ (-1).The maximum feed force of drilling is 139.84 Nu.Conclusion the data of drilling feed force of biological bone can be effectively collected by the modified collection system of biomechanical cutting performance parameters, and there is a close relationship between the feeding force of bone drilling and the tissue structure of bone, electric drilling speed and feed speed, in which the more dense the bone structure, the more dense the bone structure is.The smaller the rotary speed of electric drill, the greater the feed speed, the greater the feed force of bone drilling, and the smaller the vice versa.The experimental data of feed force of fresh pig femoral shaft drilling and its changing trend can provide the basis for setting up the output signal of force feedback in virtual orthopedic surgery system.
【作者单位】： 南方医科大学人体解剖教研室;深圳市平乐骨伤医院骨关节病科;南方医科大学附属北n匾皆，

本文编号：1751274