Diseño y construcción de un prototipo de rehabilitador de manos para personas con discapacidad motriz en sus dedos.

Abstract

The objective of this project was to design and build a prototype of a hand rehabilitator for people with motor disabilities in their fingers since, according to the world organization of health, six million adults in the world die from brain attacks and as a consequence, they suffer from nervous disorders, which causes muscle stiffness, for example, the fingers remain contracted for long periods of time. Countries industrialized have developed studies of anthropometry of the hand creating prototypes rehabilitators, the main drawback lies in how expensive it is to import them, it was investigated about studies carried out on kinematic chains that describe the movements of the fingers, types of drives and models of some prototypes, later the modeling of three design alternatives was done, of which the most suitable was selected, then the construction of the prototype was done through additive manufacturing, using poly lactic acid as a material (PLA). To fix the prototype and house the components, leatherette and velcro tape were used, finally a mobile application controls the movements and speed of each mechanism. To the perform the validation tests, the prototype presented an adequate operation, the speed calculated helped to have greater control of the movement of the fingers and in effect of this was controlled easily the pain of patients.