TY - JOUR
T1 - Numerical study of a customized transtibial prosthesis based on an analytical design under a flex-foot® variflex® architecture
AU - Hernández-Acosta, Marco Antonio
AU - Torres-San Miguel, Christopher René
AU - Piña-Díaz, Armando Josue
AU - Paredes-Rojas, Juan Carlos
AU - Aguilar-Peréz, Luis Antonio
AU - Urriolagoitia-Sosa, Guillermo
N1 - Funding Information:
Acknowledgments: The authors acknowledge the financial support for the realization of this work provided to the Government of Mexico by the National Council of Science and Technology (CONACYT) and the Instituto Politécnico Nacional. The authors acknowledge partial support from projects 20201964 and 20200930, as well as an EDI grant, all provided by SIP/IPN.
Publisher Copyright:
© 2020 by the authors.
PY - 2020/6/1
Y1 - 2020/6/1
N2 - This work addresses the design, analysis, and validation of a transtibial custom prosthesis. The methodology consists of the usage of videometry to analyze angular relationships between joints, moments, and reaction forces in the human gait cycle. The customized geometric model of the proposed prosthesis was defined by considering healthy feet for the initial design. The prosthesis model was developed by considering the Flex-Foot® Variflex® architecture on a design basis. By means of the analytical method, the size and material of the final model were calculated. The behavior of the prosthesis was evaluated analytically by a curved elements analysis and the Castigliano theorem, and numerically by the Finite Element Method (FEM). The outcome shows the differences between the analytical and numerical methods for the final prosthesis design, with an error rate no greater than 6.5%.
AB - This work addresses the design, analysis, and validation of a transtibial custom prosthesis. The methodology consists of the usage of videometry to analyze angular relationships between joints, moments, and reaction forces in the human gait cycle. The customized geometric model of the proposed prosthesis was defined by considering healthy feet for the initial design. The prosthesis model was developed by considering the Flex-Foot® Variflex® architecture on a design basis. By means of the analytical method, the size and material of the final model were calculated. The behavior of the prosthesis was evaluated analytically by a curved elements analysis and the Castigliano theorem, and numerically by the Finite Element Method (FEM). The outcome shows the differences between the analytical and numerical methods for the final prosthesis design, with an error rate no greater than 6.5%.
KW - Biomechanics
KW - Castigliano theorem
KW - Gait cycle
KW - Numerical simulation
KW - Prosthesis design
KW - Videometry
UR - http://www.scopus.com/inward/record.url?scp=85087214657&partnerID=8YFLogxK
U2 - 10.3390/app10124275
DO - 10.3390/app10124275
M3 - Artículo
AN - SCOPUS:85087214657
SN - 2076-3417
VL - 10
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
IS - 12
M1 - 4275
ER -
