More than two-thirds of all stroke patients have affected upper limbs and approximately 50% of them suffer from a chronic reduction in arm functions. The common symptoms are balance and coordination problems, muscle loss and muscle weakness that can lead to twitching, cramps, aches and pains. Such patients need a rehabilitation therapy, organized by the use of physiotherapeutic and assistive robotic means. Another major group of patients who need robotic rehabilitation treatment/assistance are the patients with musculoskeletal disorders (MSDs). Wearable, safe, light, flexible and multifunctional robotic devices can be best solutions for these problems and sufficiently improve workers and patients life and workability. For the design of such devices it is important to solve problems related to the selection and application of appropriate actuators, human joint mimicking devices, optimal design and development of new control methods. Researchers of Robotics Laboratory at the National Polytechnic University of Armenia (NPUA) conduct investigations of new generation of exoskeletons which use electroactive polymers (EAPs) as actuators, are over-actuated, have new control systems based on the hypotheses of natural motor control: equilibrium point control or threshold control, learning control, optimal control etc.
We are open to cooperation with any interested parties, ready to listen to your ideas and suggestions, and also ready to modify our designs and make them more convenient for your specific case.