Development of an upper limb neuroprosthesis to voluntarily control elbow and hand

This work reports research and development of a lightweight neuroprosthesis, which can control the impaired motion by using voluntary biological signal. The total weight of the upper limb neuroprosthesis is 900 g, which is 40% lesser than the commercially available ones. For a trans-humeral amputee who had targeted muscle reinnervation (TMR) surgery, pattern classification of five motions was possible by using surface electromyogram (s-EMG) extracted from four dry electrodes.