The design and mechanical assessment of a prosthetic foot for transtibial amputees

Abstract

This thesis focuses on the development of an affordable prosthetic foot using 3D modeling. The aim is to provide a more accessible option for the average person. The study includes a detailed examination of the commercial prosthetics currently available on the market. By analyzing existing designs, the research compares their effectiveness with the new design being developed. The project utilizes SolidWorks to design each component and assemble the entire prosthetic foot. Simulations are conducted to assess how an average load affects the heel and forefoot of the design, as well as to determine whether the chosen material effectively reduces impact during walking. In addition to simulations, lab experiments were performed using the Chatillon force tester to analyze various prosthetic designs, including the 3D-printed model. These tests apply the required load to compute data on measures of absorbed energy and stiffness. The study also incorporated a 3Dprinted insole designed to diminish impact during walking. These findings could lead to the creation of more affordable prosthetics, offering greater flexibility and comfort for transtibial amputees.