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Related Experiment Video

Updated: May 12, 2025

Remote Magnetic Navigation for Accurate, Real-time Catheter Positioning and Ablation in Cardiac Electrophysiology Procedures
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A Master-Follower Teleoperation System for Robotic Catheterisation: Design, Characterisation and Tracking Control.

Ali A Nazari1, Jeremy Catania1, Soroush Sadeghian2

  • 1Department of Mechanical, Industrial and Mechatronics Engineering, Toronto Metropolitan University, Toronto, Canada.

The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS
|May 7, 2025
PubMed
Summary
This summary is machine-generated.

This study introduces a novel telerobotic catheterization system for enhanced transparency in minimally invasive surgery. While the open-loop controller shows promise, closed-loop control is essential for addressing system nonlinearities.

Keywords:
characterisationmaster‐follower teleoperation systemminimally invasive surgeryrobotic catheterisationtracking control

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Area of Science:

  • Robotics
  • Medical Technology
  • Minimally Invasive Surgery

Background:

  • Telerobotic systems have advanced minimally invasive surgery over two decades, reducing radiation exposure and enabling remote procedures.
  • Enhanced transparency in master-follower systems is crucial for surgeons to perceive force feedback during robotic interventions.

Purpose of the Study:

  • To develop and evaluate a three-degree-of-freedom master-follower telerobotic system for robotic catheterization.
  • To assess the system's performance in mimicking manual catheterization techniques and its path-tracking accuracy.

Main Methods:

  • A novel grip-insert-release mechanism was implemented in the follower device to prevent catheter buckling and torsion.
  • The system's performance was evaluated using open-loop path tracking on various complex trajectories (circular, infinity-like, spiral).

Main Results:

  • The system demonstrated path tracking with Mean Euclidean Error (MEE) ranging from 0.64 to 1.53 cm.
  • Mean Absolute Error (MAE) varied between 0.81 and 1.92 cm across different tested paths.

Conclusions:

  • The developed telerobotic system achieves target precision and accuracy with an open-loop controller.
  • Future work requires closed-loop control to mitigate catheter hysteresis, dead zones, and nonlinearities for improved clinical application.