Department of Surgery, Central Michigan University College of Medicine, Saginaw, Michigan 48602, USA.
J Surg Educ. 2013 Jul-Aug;70(4):443-50. doi: 10.1016/j.jsurg.2013.02.004. Epub 2013 Apr 4.
To construct a trainer that would achieve the equivalent goals of the Fundamentals of Laparoscopic Surgery (FLS) trainer at an economical cost. A validation study comparing our homemade (HM) trainer vs the FLS trainer was performed. A literature search as well as a price comparison with other commercially available laparoscopic trainers is presented.
The HM laparoscopic trainer was constructed using a prefabricated hard plastic frame with a vinyl plastic sheet affixed as the roof. A row of light-emitting diode lights and a charge-coupled device camera were mounted on the inside roof of the frame. Electrical wires were spliced to supply power to both the light-emitting diode lights and the camera. The charge-coupled device camera was connected to a liquid crystal display screen which was affixed directly across from the user. Subjects were prospectively randomized to perform the 5 tasks put forth by the McGill Inanimate System for Training and Evaluation of Laparoscopic Skills on both the HM trainer and the FLS trainer (pegboard transfer, pattern cut, placement of ligating loop, extracorporeal knot suture, and intracorporeal knot suture). Simple paired t test was performed to compare times between the trainers.
The construction of the trainer and the validation study were performed at the Central Michigan University College of Medicine Department of Simulation.
Subjects consisted of third- and fourth-year medical students (n = 30).
A laparoscopic trainer box was constructed and assembled in 2 hours. The HM trainer cost $309 representing a cost savings of $1371. Results of the validation study demonstrated no statistical difference in times to complete 3 out of the 5 tasks as well as no difference in total time to complete all 5 tasks (p value< 0.05).
Valid laparoscopic simulators can be constructed at an economical cost.
为了以经济实惠的成本实现腹腔镜手术基础（FLS）训练器的同等目标，构建一个训练器。进行了一项比较我们自制（HM）训练器与 FLS 训练器的验证研究。进行了文献检索，并与其他市售腹腔镜训练器进行了价格比较。
HM 腹腔镜训练器使用预制的硬塑料框架和固定在屋顶上的乙烯基塑料片制成。在框架的内部屋顶上安装了一排发光二极管灯和一个电荷耦合器件摄像头。将电线拼接起来，为发光二极管灯和摄像头供电。电荷耦合器件摄像头连接到一个液晶显示屏，该显示屏直接贴在使用者对面。受试者被前瞻性随机分配到 HM 训练器和 FLS 训练器上执行 5 项由 McGill 无生命系统提出的任务，用于培训和评估腹腔镜技能（销钉转移、图案切割、结扎环放置、体外结缝合和体内结缝合）。对训练器之间的时间进行简单配对 t 检验。
训练器的构建和验证研究在密歇根中央大学医学院模拟部进行。
参与者由三年级和四年级医学生组成（n = 30）。
在 2 小时内构建并组装了腹腔镜训练箱。HM 训练器的成本为 309 美元，节省了 1371 美元。验证研究的结果表明，在完成 5 项任务中的 3 项任务的时间以及完成所有 5 项任务的总时间方面没有统计学差异（p 值<0.05）。
可以以经济实惠的成本构建有效的腹腔镜模拟器。
