Electrical Engineering

Welcome to the master thesis presentation “Design and Development of a Novel Sensorized Orthosis for Orthopedic Rehabilitation”; by Yuhong Zhou
Friday November 28th, 13:00-14:00, in room 2503 Fredrik Lamm.
Opponents: Fanze Meng and Pengcheng Shen
Supervisor: Fabian Just
Examiner: Emmanuel Dean
Abstract: This thesis presents the design, development, and implementation of a novel sensorized orthosis for orthopedic rehabilitation. The system addresses the lack of quantitative feedback in traditional passive braces by integrating compact sensing and data communication modules into a lightweight and modular structure. An absolute rotary encoder and two six-axis IMUs were employed to measure knee joint angle and motion dynamics in real time. The embedded controller, based on an ESP32-S3 microcontroller, supports high-frequency data acquisition, local microSD logging, and wireless communication with the ROS 2 framework, enabling both offline analysis and interactive applications.&nbsp; The system was designed as a fully independent and non-invasive add-on to a commercial postoperative brace, maintaining clinical compatibility while adding sensing capability. The complete system weighs approximately 180 grams and allows rapid attachment and removal without altering the brace’s mechanical properties. Experimental validation confirmed stable and synchronized sensor performance, accurate joint-angle estimation, and reliable differentiation between correct and incorrect rehabilitation motions.
An already developed Unity3D-based rehabilitation game was migrated to the proposed system, transforming repetitive rehabilitation exercises into engaging and data-driven tasks that enhance patient motivation and treatment adherence. The system bridges the gap between conventional orthopedic braces and robotic rehabilitation devices, establishing a foundation for intelligent, quantitative, and personalized rehabilitation assessment.
Welcome!
Yuhong, Fabian, and Dean

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Presentation of master thesis

Master thesis presentations at Electrical Engineering

25 November, 2025

14:00-15:00 Yuhong Zhou, MPSYS