A low cost and open-source anthropomorphic prosthetics hand for transradial amputee

Abstract

Available prosthetics hand is expensive and beyond the ability to buy for the amputee, especially in the developing country. The designing a low-cost prosthetics hand is very important because it can be fabricated with a minimum cost. Therefore, this study aims to design an anthropomorphic prosthetics hand with a low cost and open source to the public. In this study, the prosthetics hand composed of an anthropomorphic artificial hand, motor servo and electronics circuits. The anthropomorphic artificial hand was designed using Blender (the three-dimension (30) application program) and Cura Ultimaker (the 30 printing application program). The material used to build the hand was polylactic acid (PLA). The electronics circuit consisted of dry electrodes, EMG amplifier, microcontroller Arduino, and two servo motor. In the implementation, the cost to build the prosthetics hand was US$ 161, and the weight is 678 grams. The EMG signal had a different pattern and amplitude when the hand performed the close and ope...