10 Prosthetic systems comprised of specialized mechanical components, specialized electronic boards and specialized artificial intelligence algorithms for the purposes of improving the quality of life of persons suffering form physical dysfunctions or impairments main component parts of the system-- DC motor, hydraulic actuation system, multi-stage mechanical transmission, micro-processor, digital signal processsor, sensor array, wireless communication technology, computer and embedded softwares; Orthotic system comprised of specialized biomechanical support, specialized electronic boards and specialized artificial intelligence algorithms for the purposes of improving the quality of life of persons suffering form physical dysfunctions or impairments and abnormal motion or position of the lower limb main component parts of the system-- DC motor, hydraulic actuation system, multi-stage mechanical transmission, micro-processor, digital signal processsor, sensor array, wireless communication technology, computer and embedded softwares; Mecatronic system comprised of specialized mechanical system, specialized electronic board and specialized artificial intelligence algorithms for the purposes of improving the quality of life of persons suffering from physical dysfunctions main component parts of the system-- DC motor, hydraulic actuation system, multi-stage mechanical transmission, micro-processor, digital signal processsor, sensor array, wireless communication technology, computer and embedded softwares; Biomedical devices, namely, nerve cuffs, control systems for regulating biological functions, namely, sensors for the nerves, to selectively measure neural signal; Feedback amplifiers and electrical stimulators of the nerves and muscles, surgical instruments, namely, surgical tools for use in implanting nerve cuffs and biomedical devices, namely, wires composed of silicone, stainless steel or platinum iridium; Biomedical equipment for use in medical procedures, namely, electrical leads, electrical power supplies, electronic signal processing units, software for signal transmission, hardware for signal transmission, namely, radio frequency and infrared transmitters and receivers, computer software for analyzing, calibrating and processing bioelectrical signals, hardware for analyzing, calibrating and processing bioelectrical signals, namely, electronic amplifiers, rectifiers, bin integrators, impedance meters, threshold detectors and computer software for controlling the stimulation of nerves