Development and primary evaluation of a minimally invasive surgical robot system in endoscopic submucosal dissection: an ex vivo feasibility study
10.3760/cma.j.cn321463-20220713-00361
- VernacularTitle:消化内镜微创手术机器人系统的研发及其辅助离体猪胃内镜黏膜下剥离术的可行性评估
- Author:
Xiaoxiao YANG
1
;
Huxin GAO
;
Shichen FU
;
Jianxiao CHEN
;
Cheng HOU
;
Zhifeng ZHOU
;
Rui JI
;
Huicong LIU
;
Hongliang REN
;
Lining SUN
;
Jialin YANG
;
Xiaoyun YANG
;
Yanqing LI
;
Xiuli ZUO
Author Information
1. 山东大学齐鲁医院消化内科，济南 250000
- Keywords:
Endoscopes, gastrointestinal;
Endoscopic robot;
Minimally invasive surgery robot;
Endoscopic submucosal dissection
- From:
Chinese Journal of Digestive Endoscopy
2023;40(3):182-188
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To develop a novel, flexible, dual-arm, master-slave digestive endoscopic minimally invasive surgical robot system named dual-arm robotic endoscopic assistant for minimally invasive surgery (DREAMS) and to evaluate its feasibility for endoscopic submucosal dissection (ESD) by using ex vivo porcine stomachs.Methods:A novel endoscopic robot (DREAMS) system was developed which was composed of a flexible two-channel endoscope, two flexible robotic manipulators, a master controller, a robotic arm, and a control system. A total of 10 artificial round-like lesions with diameters ranging from 15 to 25 mm were created (5 in gastric antrum and 5 in gastric body) by using fresh peeled stomach of healthy pigs as the model. Submucosal dissection was performed with the assistance of the DREAMS system by two operators. The main outcome was submucosal dissection speed, and the secondary outcomes included muscular injury rate, perforation rate, and grasping efficiency of the robot.Results:All 10 lesions were successfully dissected en bloc by using the DREAMS system. The diameter of the artificial lesions was 22.34±2.39 mm, dissection time was 15.00±8.90 min, submucosal dissection speed was 141.79±79.12 mm 2/min, and the number of tractions required by each ESD was 4.2 times. Muscular injury occurred in 4/10 cases of ESD. No perforation occurred. Conclusion:The initial animal experiment shows the DREAMS system is safe and effective.
