Electromagnetic Haptic Feedback System for Teleoperated Robotic Puncture Tasks.

Area of Science:

• Robotics
• Surgical Technology
• Haptic Feedback

Background:

• Haptic feedback is crucial for robotic surgery, improving operator perception and accuracy.
• Traditional mechanical haptic systems face limitations due to friction, impacting user experience.
• Advancements in robotic surgery necessitate improved haptic feedback for minimally invasive puncture techniques.

Purpose of the Study:

• To design and implement a magnetic haptic feedback device for robotic-assisted puncture procedures.
• To develop a high-fidelity magnetic haptic feedback algorithm for dynamic force reproduction.
• To integrate virtual simulation, vision-based control, and magnetic feedback for enhanced teleoperated tasks.

Main Methods:

• A magnetic haptic feedback device utilizing electromagnetic coils was designed to dynamically adjust magnetic fields based on puncture force.
• A three-stage algorithm (calibration, training, feedback) was developed, employing a multilayer perceptron model for force-to-duty cycle mapping.
• The system integrated 3D virtual simulation, vision-based servo control, and a surgeon-side/patient-side architecture for teleoperated puncture tasks.

Main Results:

• The magnetic haptic feedback system demonstrated high-fidelity reproduction of puncture forces.
• The proposed algorithm enabled precise force reconstruction and real-time magnetic field control.
• Phantom experiments and user evaluations confirmed superior force feedback fidelity and operational immersion.

Conclusions:

• The developed magnetic haptic feedback system significantly enhances robotic-assisted puncture procedures.
• This technology offers a promising solution for improving safety and effectiveness in minimally invasive surgery.
• The system's integration of simulation, control, and feedback provides a robust platform for teleoperated robotic tasks.