Development and Efficacy Assessment of an Angle Sensor-Integrated Upper Limb Exoskeleton System for Autonomous...

Area of Science:

• Rehabilitation Engineering
• Robotics in Medicine
• Neurorehabilitation

Background:

• Upper limb hemiplegia presents significant challenges in rehabilitation.
• Existing systems may lack integrated active and passive modes for comprehensive training.
• Ensuring safety and efficacy in robotic-assisted rehabilitation is crucial.

Purpose of the Study:

• To develop and evaluate a novel exoskeleton rehabilitation training system for upper limb hemiplegia.
• To integrate active and passive rehabilitation modes for enhanced patient outcomes.
• To ensure synchronized, safe, and stable movements during robotic-assisted therapy.

Main Methods:

• Development of an exoskeleton robot for upper limb movement (elbow, wrist, palm).
• Implementation of active and passive rehabilitation modes.
• Utilizing an angle sensor on the unaffected limb to guide and synchronize the affected limb's motion.
• Integration of a protective mechanism triggered by angle thresholds.

Main Results:

• The exoskeleton robot demonstrated rapid response and high synchronization with the unaffected limb.
• Movement stability and coordination were maintained without significant delay.
• The protective mechanism successfully halted and stabilized the affected limb when exceeding angle thresholds.
• Synchronized movement resumed upon angle equalization, ensuring training safety.

Conclusions:

• The proposed system enhances convenience, efficacy, and safety in upper limb hemiplegia rehabilitation.
• The synchronized movement and protective features contribute to a reliable rehabilitation training system.
• This research offers insights into functional improvements for safe and effective exoskeleton-based rehabilitation.