Integration of 3D Printing Technology into the Process of Manufacturing and Optimization of the Transfemoral Prosthesis

This paper describes the process of creating a new type 3D model of an above-knee prosthesis and its subsequent 3D printing using modern technology. The introduction provides a brief history of prosthetics, kinematics of new prosthesis mechanism, highlighting the advantages of contemporary solutions over earlier models. Following this, the components of the above-knee prosthesis are described in detail, along with the CAD technology used to create the 3D model, as well as an analysis of the issues with previous prosthetic prototypes and the necessary design modifications. A 3D model of the hydraulic cylinder was developed using SolidWorks, after which the remaining parts of the prosthesis were designed with the required adjustments. A static analysis was performed to verify that the prosthesis could support a weight of 120 kilograms. The paper also discusses additive manufacturing and the preparation for 3D printing of the parts. Finally, after 3D printing, the parts were assembled into the final above-knee prosthesis structure. 3D Printing, Above-Knee Prosthesis, Hydraulic Cylinders