用跳跃式运动控制器追踪腹腔镜器械在一个训练箱中的可行性

用跳跃式运动控制器追踪腹腔镜器械在一个训练箱中的可行性
Feasibility of tracking laparoscopic instruments in a box trainer using a Leap Motion Controller

Abstract
Motion analysis is employed to assess minimally invasive surgical psychomotor skills in box trainers. Tracking of laparoscopic instruments requires sensor-based systems that can be expensive, limit movements and modify their ergonomic properties. We evaluate the feasibility of using Leap Motion as a cheap, unobtrusive alternative. Four experiments were performed to determine its precision while tracking a laparoscopic instrument inside and outside a box trainer. Static long and short term precision of the Leap Motion was <2.5 mm. Precision between 12 different positions within the box trainer was <0.7 mm for all measured distances between neighbors. Dynamic precision when moving the instrument for 200 mm ranged between 2 and 15 mm. Leap Motion presents acceptable precision values inside a box trainer. Improvements are still required (e.g.: multiple instruments’ tracking). Once solved, a validation study should verify the usefulness of Leap Motion to objectively measure skills of novices and residents during training.
摘要
运动分析是用来评估微创外科运动技能训练师在训练箱。腹腔镜器械的跟踪需要基于传感器的系统，可以是昂贵的，限制运动和修改他们的人体工程学的属性。我们评估使用Leap Motion作为一种廉价的可行性，不引人注目的替代。四个实验，以确定其精度，同时跟踪腹腔镜器械内和外部的一个盒子教练。跳跃运动的静态长、短期精度为2.5 mm。框内的12个不同的位置之间的精度是< 0.7毫米所有测量邻居之间的距离。移动的仪器为200毫米的动态精度介于2和15毫米之间。跳跃运动在一个盒子里的教练机上呈现可接受的精确值。改进仍然是必需的（例如：多个仪器的跟踪）。一旦解决，验证研究应该验证的实用性的飞跃运动，客观测量技能的新手和居民在训练过程中。

Keywords
Minimally invasive surgery; Laparoscopic instruments; Surgical training; Motion analysis; Leap Motion; Precision
关键词
微创手术；腹腔镜器械；外科训练；运动分析；跳跃运动；精度

原文：
Feasibility of tracking laparoscopic instruments in a box trainer using a Leap M.pdf (1.67 MB, 下载次数: 5, 售价: 99 香叶)

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用跳跃式运动控制器追踪腹腔镜器械在一个箱中的可行性

用跳跃式运动控制器追踪腹腔镜器械在一个训练箱中的可行性

Fig. 1. Laparoscopic instrument model.
图. 1. 腹腔镜器械模型。

用跳跃式运动控制器追踪腹腔镜器械在一个训练箱中的可行性

Fig. 2. Cartesian coordinate system of the Leap Motion Controller.
图. 2. 跳跃运动控制器的直角坐标系。

用跳跃式运动控制器追踪腹腔镜器械在一个训练箱中的可行性

Fig. 3. Experimental set-up. The evaluation platform was used for the experiments inside the laparoscopic box trainer. It has 12 equally distributed holes and is able to hold the laparoscopic instrument in a fixed position.
图. 3. 实验装置。评价平台用于腹腔镜下的实验箱的实验。它有12个均匀分布的孔，并能够保持腹腔镜器械在一个固定的位置。

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