Division of Chest Surgery, Department of Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto , 602-8566, Japan.
Int J Comput Assist Radiol Surg. 2015 Mar;10(3):243-51. doi: 10.1007/s11548-014-1080-2. Epub 2014 Jun 7.
A touch panel navigation system may be used to enhance endoscopic surgery, especially for cauterization. We developed and tested the in vitro performance of a new touch panel navigation (TPN) system.
This TPN system uses finger motion trajectories on a touch panel to control an argon plasma coagulation (APC) attached to a robot arm. Thermal papers with printed figures were soaked in saline for repeated recording and analysis of cauterized trajectory. A novice and an expert surgeon traced squares and circles displayed on the touch panel and cauterized them using the APC. Sixteen novices and eight experts cauterized squares and circles using both conventional endoscopic and TPN procedures. Six novices cauterized arcs using the endoscopic and TPN procedures 20 times a day for 5 consecutive days.
For square shapes, the offset was 5.5 mm with differences between the novice and the expert at 2 of 16 points. For circles, the offset was 5.0 mm and did not differ at any point. Task completion time for the TPN procedure was significantly longer than that for the endoscopic procedure for both squares and circles. For squares, the distance from the target for the TPN procedure was significantly smaller than that for the endoscopic procedure. For circles, the distance did not differ. There was no difference in task completion time and distance between the novices and the experts. Task completion time and distance improved significantly for the endoscopic procedure but not for the TPN procedure.
A new TPN system enabled the surgeons to accomplish continuous 3D positioning of the surgical device with automatic depth perception using finger tracing on a 2D monitor. This technology is promising for application in surgical procedures that require precise control of cauterization.
触摸板导航系统可用于增强内镜手术，特别是用于烧灼。我们开发并测试了一种新的触摸板导航（TPN）系统的体外性能。
该 TPN 系统使用触摸板上的手指运动轨迹来控制连接到机械臂的氩等离子凝固（APC）。将印有图案的热敏纸浸泡在盐水中，以重复记录和分析烧灼轨迹。新手和专家外科医生在触摸板上追踪显示的正方形和圆形，并使用 APC 对其进行烧灼。16 名新手和 8 名专家使用传统内镜和 TPN 程序烧灼正方形和圆形。6 名新手每天使用内镜和 TPN 程序 20 次，连续 5 天烧灼弧形。
对于正方形，偏移量为 5.5mm，在 16 个点中有 2 个点新手和专家之间存在差异。对于圆形，偏移量为 5.0mm，在任何点都没有差异。TPN 程序的任务完成时间明显长于内镜程序，无论是正方形还是圆形。对于正方形，TPN 程序的目标距离明显小于内镜程序。对于圆形，距离没有差异。新手和专家之间的任务完成时间和距离没有差异。内镜程序的任务完成时间和距离明显提高，但 TPN 程序没有。
一种新的 TPN 系统使外科医生能够使用手指在 2D 监视器上进行追踪，实现手术器械的连续 3D 定位，并具有自动深度感知功能。这项技术有望应用于需要精确控制烧灼的手术程序。
