Design and Realization of Prosthetic Hand and its Free Movement

At present, work on prosthetic hands finds special importance, because this branch of engineering enables the mankind to think for the realizable substitute of human limbs using artificial means. With the advent of realization of various types of micro-motors, this subject of prosthetic hands finds practical realization, because human limbs basically are operated with neuromotors energy being driven by the appropriate neuro signal initiated by the Automatic Nervous System (ANS) of the brain. Present paper deals with the hardware design of the prosthetic finger using gear motor alongwith Programmable Interface Controller(PIC) enabling the hand to render linear and appropriate movement and thus realizing free movement of prosthetic finger, as is experienced by natural finger. The motion of the prosthetic finger is described considering the energies of the finger, when it is driven by appropriate signal. The associated Lagrangian function of the motion of the finger is evaluated for the present study. Keyword— Prosthetic Hand, Lagrangian function, Programmable Interface Controller (PIC), Automatic Nervous System (ANS).