Diseño y construcción de un prototipo de rehabilitador de codo para personas con dificultad motriz.

Abstract

The present work refers to the design and construction of a prototype of an elbow rehabilitation for people with mobility difficulties, which is economical and complies with the necessary movements for rehabilitation such as flexion - extension and pronosupination, which have an angle of movement from 0º to 145º and from 0º to 180º respectively, taking into account the speed, repetition and position parameters. The design of the elbow rehabilitator was developed with the objective of reaching a population that is within an age range of 19 to 59 years of age, for this reason the anthropometric measurements of weight and length were obtained, in order to be able to size the rehabilitation, a kinematic analysis was performed to obtain the position, velocity and acceleration graphs and a dynamic analysis to obtain the torque value for the flexion-extension movement, using computer-aided design software and computer-aided manufacturing. (CAD - CAM) and a static analysis of the structure which will support all the existing forces in the rehabilitator, making a designation and selection of the most suitable material for its construction, in addition a topological study was carried out to reduce its weight, the tests were carried out without load and with load taking into account the most important parameters such as speed, position and repetition. necessary for a good rehabilitation, resulting in an acceptable error in the operation of the machine of 4% in relation to the angle assigned with the angle measured from the mechanical point of view.