Wearable Joint Angle Sensor for Reproducible Therapy Measurement

The patent replaces the traditional mechanical goniometer system with a sensor-based measurement system. Instead of using a mechanical fulcrum and arms that require manual attachment, the invention uses sensors (such as accelerometers, gyroscopes, or magnetic sensors) to detect joint angle movements automatically. This substitution eliminates the variability introduced by manual attachment and provides consistent, reproducible measurements across different clinicians and sessions.

The wearable device attaches directly to the patient's body (e.g., using adhesive pads or straps positioned at specific anatomical landmarks) and automatically tracks joint movement without requiring clinician intervention during measurement. The device self-calibrates and continuously monitors joint angles, eliminating the need for repeated manual positioning and attachment by different clinicians, thereby ensuring consistent and reproducible measurements.

The wearable device is designed to be self-adhering to the patient's body using anatomical landmarks for positioning. Once attached, it automatically and continuously tracks joint angle movements without requiring clinician manipulation or holding. This eliminates the time-consuming manual attachment and measurement process, allowing clinicians to focus on patient care while the device independently collects accurate joint angle data throughout the rehabilitation session.

The device provides continuous, real-time tracking of joint angle movements throughout the entire rehabilitation session rather than requiring discrete manual measurements at specific intervals. This continuous monitoring capability eliminates repeated setup and measurement cycles, significantly improving session efficiency and productivity while maintaining comprehensive measurement coverage.