3D printable optimized design for orthotic and prosthetic medical devices

Nowadays, the emergence of additive manufacturing made the high-quality manufacturing of structures with complex geometries feasible. In the field of Biomedical engineering, 3D printing techniques can be used to fabricate prosthetic and orthotic medical devices with high product quality, fast production speed, and minimized specialized manual labor.

Here, we developed an integrated and streamlined methodology connecting different steps (i.e., geometrical design, computational models, topology optimization, and rapid prototyping using 3D printing) for the design of orthotic and prosthetic medical devices including transtibial socket, hand brace , and cast replacement. Toward this aim, we, first, designed the initial geometry of those medical devices using computer-aided design. Then, the structural strength of the proposed designs subjected to various physiological loading scenarios was evaluated by computational models using finite element approaches. These computational models were further used to conduct topology optimization on preliminary designs. Finally, the optimized medical devices were realized using additive manufacturing techniques.

Presented by Helda Phalavani, Faculty of 3mE, Mechanical, Maritime and Materials Engineering, Delft University of Technology.

About Faculty of 3mE, Mechanical, Maritime and Materials Engineering, Delft University of Technology.
The staff of the faculty of 3mE carry out ground-breaking and pioneering research, which leads to challenging applications and new fundamental insights in the fields of mechanical, maritime and materials engineering. The foundations and results of this research are reflected in outstanding contemporary and modern education. This education inspires 3mE students to become socially engaged and responsible engineers and scientists, who make optimum use of their competencies and expertise in order to resolve social problems and develop valuable technological innovations.

The faculty of 3mE presents itself as a dynamic and innovative faculty aimed at having its staff, students and alumni make a significant contribution to the development and growth of a sustainable society, as well as prosperity and welfare.

The faculty of 3mE offers high-quality degree programmes, with the best possible lecturers, curricula and facilities. Students are challenged to bring out the best in themselves and assume responsibility for their academic progress. The competencies and skills of engineering graduates enable them to work in a broad range of areas in society, both in the Netherlands and abroad.

Helda Phalavani is speaker at the 2022 edition of the 3D Medtech Printing Conference which is a part of the 3D Medical Printing Series

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