An Innovative Master Haptic Interface Employing Magnetorheological Fluids for Endovascular Catheterization.

Area of Science:

• Robotics
• Medical Engineering
• Haptics

Background:

• Teleoperated surgery, particularly intravascular cannulation, faces risks due to inadequate force feedback and collision warnings.
• Current robot-assisted systems require enhanced sensory feedback for improved surgical safety and precision.

Purpose of the Study:

• To introduce and validate an innovative master haptic interface using magnetorheological (MR) fluid for robot-assisted intravascular intervention.
• To enhance surgeons' operational perception and improve safety through real-time haptic feedback and collision alerts.

Main Methods:

• Development of a master haptic interface incorporating magnetorheological (MR) fluid.
• Implementation of real-time haptic feedback amplification when contact forces exceed a predefined threshold.
• Conducting preliminary experiments to assess the interface's efficacy.

Main Results:

• The MR fluid-based haptic interface effectively enhanced operator haptic perception.
• The system provided timely collision alarms with clear haptic clues.
• Demonstrated improvement in the safety and operability of robot-assisted intravascular intervention.

Conclusions:

• The developed MR fluid haptic interface shows significant potential for enhancing surgeon feedback in robot-assisted surgery.
• This technology offers functional improvements for safer and more reliable robot-assisted catheter systems.
• Further insights into improving safe and reliable robot-assisted catheter systems were provided.