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Surgical Robot for Intraluminal Access: An Ex Vivo Feasibility Study.

Ryu Nakadate¹, Tsutomu Iwasa², Shinya Onogi³

¹Center for Advanced Medical Innovation, Kyushu University, Japan.

Cyborg and Bionic Systems (Washington, D.C.)

|April 17, 2023

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A new robotic system simplifies endoscopic submucosal dissection (ESD) for early gastrointestinal cancers. This less invasive procedure preserves organs and improves patient quality of life, even for less experienced endoscopists.

Area of Science:

Medical Robotics
Gastroenterology
Surgical Technology

Background:

Early-stage gastrointestinal cancer is often treated with endoscopic submucosal dissection (ESD).
ESD is less invasive than traditional surgery but requires high operator skill due to limited endoscope maneuverability.
A need exists for improved tools to enhance ESD precision and accessibility.

Purpose of the Study:

To develop and evaluate a novel robotic system designed to facilitate endoscopic submucosal dissection (ESD).
To assess the feasibility and usability of the robotic system for ESD procedures, particularly for operators with limited experience.

Main Methods:

Development of a robotic system integrating a flexible endoscope with two articulating instruments.
The system features a motor unit for enhanced endoscope control and instruments with bending sections for multi-directional motion.

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Ex vivo feasibility study conducted on porcine stomachs using the robotic system for ESD.

Main Results:

The robotic system was successfully utilized by five novice operators for ESD in a porcine stomach model.
No complications were reported during the ex vivo procedures.
The study demonstrated the system's feasibility and potential to enable less experienced operators to perform ESD.

Conclusions:

The developed robotic system is feasible for performing endoscopic submucosal dissection (ESD).
The system shows promise in reducing the technical barrier for ESD, potentially expanding its application.
This technology could improve accessibility and outcomes for patients with early-stage gastrointestinal cancers.