Russian University Develops Safer Exoskeleton for Arm Rehabilitation

Researchers at Tambov State Technical University (TSTU) have created a new hybrid control algorithm for a pneumatic upper-limb exoskeleton. The technology aims to safely rehabilitate patients with arm and shoulder injuries. It builds on the university’s earlier work, including the NeuroStep rehabilitation system. The main challenge with active exoskeletons has always been the risk of mechanical collisions in space, which could harm patients. To solve this, TSTU engineers and student developers used advanced mathematical modelling alongside high-performance 3D simulations. Their system analysed over 758 million possible spatial positions of the exoskeleton to create a safe operational matrix.

The device’s pneumatic actuator acts like a natural damper, absorbing sudden muscle spasms without causing injury. This ensures smooth and controlled movement during rehabilitation. The team also developed the software in-house, giving the university full technological control. By keeping development internal, TSTU maintains sovereignty over the system. This approach also allows for quick adjustments to meet the specific needs of different hospitals.

The new algorithm removes the risk of patient injury while using the exoskeleton. It expands on TSTU’s existing rehabilitation technology, offering a safer way to recover arm and shoulder function. Hospitals can now adopt the system with confidence in its reliability and adaptability.