Enhancing IV Insertion Skill Training: Integrating Bimanual Haptic Feedback in Mixed Reality

Area of Science:

• Medical Simulation
• Human-Computer Interaction
• Virtual Reality

Background:

• Intravenous (IV) cannulation is a common but challenging clinical skill.
• Traditional training methods have limitations in providing realistic, repeatable practice.
• Developing advanced simulation tools is crucial for effective medical education.

Purpose of the Study:

• To develop and evaluate an advanced bimanual IV needle insertion simulation system.
• To integrate mixed reality (HoloLens 2) with haptic feedback (exoskeleton glove and stylus device).
• To simulate real-world variability for customizable training scenarios.

Main Methods:

• Developed a bimanual IV insertion simulator using HoloLens 2 for visualization.
• Integrated an exoskeleton haptic glove for virtual hand interaction and a stylus for needle insertion.
• Implemented a multiphase calibration for device synchronization.
• Conducted a usability study with 31 nursing students.

Main Results:

• The simulation system was found to be immersive and acceptable for training purposes.
• Participants reported a need for improved realistic grasp feeling in the haptic glove.
• Simulated variabilities (skin color, tattoos, vein characteristics, stiffness) effectively controlled difficulty levels.

Conclusions:

• The developed mixed reality and haptic feedback system provides an effective and adaptable platform for IV insertion training.
• Further refinement of haptic feedback, particularly grasp realism, is recommended.
• The system's ability to simulate diverse patient variabilities enhances its training utility.