Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/70149
Título: Bionic design and verification of 3D printed PEEK costal cartilage prosthesis
Autores/as: Zhang, Chenguang
Wang, Ling
Kang, Jianfeng
Martel Fuentes, Oscar 
Li, Dichen
Clasificación UNESCO: 3314 Tecnología médica
Palabras clave: 3D Printing
Bionic Design
Costal Cartilage Prosthesis
Finite Element Analysis
Orthogonal Experiment, et al.
Fecha de publicación: 2020
Publicación seriada: Journal of the Mechanical Behavior of Biomedical Materials 
Resumen: Chest wall reconstructions are mainly needed after surgical treatment of tumors or trauma. The costal cartilage is part of the chest wall, connecting sternum and ribs. The currently existing rib prostheses made of Titanium or PEEK were found lacking the costal cartilage portion, causing unsatisfactory functional rehabilitation of breath. This study proposed a newly bionic methodology for designing a costal cartilage prosthesis using a wavy elastic structure. By changing the design parameters, the mechanical properties can be accurately adjusted. Finite element analysis was carried out for the optimization of the prostheses. Then the prostheses were fabricated by fused deposition modelling manufacturing technology, using PEEK. Mechanical tests were carried out to determine the elastic modulus of the prostheses. The equivalent modulus ranged 0.5–17.3 MPa, and the tensile strength ranged 0.7–8.3 MPa. The results indicated that the mechanical behavior of the designed prostheses were close to those of the natural costal cartilage and that the wavy elastic structure was a reasonable choice for designing a costal cartilage prosthesis. Therefore, the designed PEEK costal cartilage prostheses have the potential as replacement of the natural costal cartilage with better breathing function for the patient undergoing chest wall reconstruction.
URI: http://hdl.handle.net/10553/70149
ISSN: 1751-6161
DOI: 10.1016/j.jmbbm.2019.103561
Fuente: Journal of the Mechanical Behavior of Biomedical Materials [ISSN 1751-6161], v. 103
Colección:Artículos
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