Modelado de un implante ortopédico tipo prótesis para amputación parcial del pie con técnicas CAD-CAM.

Abstract

This work includes modeling, analysis, simulation and construction of a prototype of lower limb prostheses using CAD-CAM technology. It began with a study of the anatomy and physiology of the foot lower limb movements during operation in order to define and characterize them. The necessary elements for modeling taking into account advances in prostheses, user characteristics and materials commonly used in this field are also described explained. Transtibial prosthesis is chosen because it allows for dynamic foot allows the user to perform everyday activities. The nitanyl nylon, was appointed as optimal for prototype construction material due to the good mechanical properties it owns and low cost. The transtibial prosthesis consider a variety of components that interactively involves the mechanics of healthy leg. The three-dimensional sketch of these technical components parametric solid modeling in order to create a 3D virtual prototype and apply the finite element method to determine the mechanical and functional capacity of the proposal was used. Analysis of stresses and deformations of the structure subjected to an axial force (weight of the user to have knowledge about the behavior during use include. It simulates and delivers the maximum and minimum deformation of the material used to different thicknesses to find the most optimal for the load resistance applied, using a CAE software. One validated the model moved to a CAM software, by programming language that allows its construction using CNC technology.