Design and Manufacture of a Transtibial Prosthesis Socket Using CAD/FEM Method

Abstract

3D printed transtibial prostheses are customized to the unique shape and size of every patient. The creation process begins with a 3D scan of the patient's stump to begin the design that best adapts. Using the transtibial prosthesis design model proposed in the study "Propose Method for the Design of a Transtibial Prosthesis using Generative CAD/FEM Analysis and Additive Manufacturing," the prosthesis can be adapted to the specific needs of a patient with transtibial amputation, including the creation of a custom socket for the prosthesis. Different materials for 3D printing are analyzed, and it is concluded which are safe and suitable for use in prostheses. Safety studies are explained to ensure user safety and comfort. The necessary steps for designing and creating personalized prostheses through 3D scanning are detailed, always ensuring patient safety and economic viability. Finally, a cost analysis was conducted, comparing the benefits of 3D printed prostheses with conventional prostheses, always ensuring continued suitable life for the patient. It is concluded that by using a custom socket in conjunction with a 3D printed transtibial prosthesis, the existing research in the field of transtibial amputee prostheses was improved. This individualized design approach was based on advanced CAD/FEM technologies and additive manufacturing, allowing for more precise and comfortable adaptation of the prosthesis to the patient's unique anatomy. In addition, safety studies and economic analysis were integrated into this design process, ensuring the viability of the final product for use in clinical practice.