Prótese de mão biônica simplificada e de baixo custo com controle eletrônico e atuador utilizando impressão 3D

Abstract

Within the current Brazilian populational scenario, approximately 14.5% face barriers resulting from some physical disability. This condition generates problems of accessibility, social interaction, and disadvantages that start in child education and reach the labor market. Thus, a low-cost hand prosthesis was developed that is controlled by a system control set for the project, which can capture the myoelectric signals from the muscles of its user and use this signal to control a servomotor that is commanding the prosthesis. To validate the system, 14 volunteers signed the Free and Informed Agreement Term (TCLE) agreeing with the research approved by the Research Ethics Committee (CEP) and participated in tests using the JAMAR dynamometer model manufactured by Sammons Preston, where they applied forces of 10 kgf and 20 kgf, and their myoelectric signals were collected. After analyzing the collected data, it was possible to develop an application firmware for the prosthesis where the user can perform the pinch movement on the objects, demonstrating that the low-cost system designed is viable.