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A ferrofluid-based haptic guidance system for robot-assisted endovascular procedures.
Saket Pradhan1, Dennis Kundrat2, Giulio Dagnino3
1University of Twente, Enschede, The Netherlands.
Journal of Robotic Surgery
|May 22, 2025
Summary
This study introduces a novel ferrofluid-based haptic feedback system for robot-assisted endovascular surgery. The system aims to restore tactile sensations lost in robotic procedures, potentially improving surgical precision and safety.
Area of Science:
- Biomedical Engineering
- Robotics
- Surgical Technology
Background:
- Robot-assisted endovascular interventions offer enhanced navigation and safety.
- A critical limitation is the absence of tactile feedback for surgeons, impacting instrument control.
- Restoring haptic feedback is essential for improving precision in minimally invasive procedures.
Purpose of the Study:
- To develop and validate a ferrofluid-based haptic feedback system for robot-assisted endovascular surgery.
- To address the challenge of lost tactile sensation in robotic surgical platforms.
- To enhance surgeon's ability to perceive instrument-tissue interaction.
Main Methods:
- Development of a ferrofluid system leveraging magnetic field-induced viscosity changes.
- Integration of the ferrofluid system with the CathBot robotic platform.
- Experimental validation including structural analysis, force evaluation, and user studies.
Main Results:
- Ferrofluids demonstrated potential for providing tactile feedback through controlled magnetic fields.
- The system showed promise in enhancing surgeon's detection of contact points within vasculature.
- Preliminary user studies indicated improved perception of instrument positioning.
Conclusions:
- Ferrofluid-based haptic feedback is a viable concept for robot-assisted endovascular surgery.
- The developed system has the potential to improve surgical accuracy and patient safety.
- Further refinement and integration are needed for widespread clinical application.
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