Robotic endolaryngeal flexible (Robo-ELF) scope: a preclinical feasibility study

Area of Science:

• Robotics in Medicine
• Minimally Invasive Surgery
• Laryngeal Surgery

Background:

• Minimally invasive laryngeal surgery requires precise visualization and instrument control.
• Current flexible endoscopes can have limitations in maneuverability and visualization of complex anatomy.

Purpose of the Study:

• To introduce and evaluate a novel robotic endolaryngeal flexible (Robo-ELF) scope driver.
• To assess the Robo-ELF's effectiveness in enhancing visualization and motor control during simulated laryngeal procedures.

Main Methods:

• Development of a robotic scope driver with three active and two passive degrees of freedom, controlled via a 3D mouse.
• Validation through visualization and biopsy procedures on human cadavers, comparing Robo-ELF with standard rigid endoscopes.

Main Results:

• The Robo-ELF demonstrated superior image quality and range of motion compared to rigid scopes.
• The system enabled visualization of previously hidden anatomical structures and overcame line-of-sight limitations.
• Enhanced motor control and a rapid learning curve were observed with the Robo-ELF.

Conclusions:

• The Robo-ELF is a novel robotic system designed to assist in driving flexible endoscopes for upper aerodigestive tract surgery.
• The technology offers significant advantages in visualization and control for laryngeal procedures.