121 / 1971-01-01 00:00:00

A Functional Electrical Stimulation System For Motor Function Rebuilding Of Limbs Based On Principle Of Electromyography Signal Communication

5122,5123,5124,5125

In this paper, a surface electromyography (sEMG) controlled functional electrical stimulation (FES) system called micro-electronic neuro-muscular bridge (MENMB) is designed for limb motor function rebuilding. It uses the recognition and output stimulus pattern algorithm, which is based on threshold and refractory period and the principle of sEMG-signal communication. The system can make the force generated by stimulating limb muscles trace the detected limb’s motion, because the output stimulus pattern is generated from the recorded volitional sEMG-signals. The proposed system is tested on limbs of healthy subjects and the measured results illustrate that the extension torques generated by stimulated and recorded wrist joints are quite similar: The correlation coefficient is 0.9254 and the root mean square error is 0.1843. Thus, it is verified that the MENMB can help subjects realize the function rebuilding of limbs.