Abstract
The present study aims to develop a prototype of an adjustable knee prosthesis based on the Instantaneous Center of Rotation (ICR) of a set of commercial prostheses. The purpose is to improve user adaptation and approach natural kinematics. To develop this mechanism, some commercial prostheses are analyzed to obtain the trajectory of the CIR during angular displacement. Based on the different curves obtained for each prosthesis, a configuration of elements is proposed to approach the desired trajectories. The knee joint is designed and simulated with this basic configuration, and a rapid prototype is developed to validate its correct operation. The results show that the proposed adjustable mechanism can improve the adaptation of external knee prostheses to the user and approach natural kinematics.
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Hidrobo, S., Valencia, F., Tobar, L. (2024). Adjustable Polycentric Mechanism for External Knee Joint Prosthesis Based on the Instantaneous Center of Rotation. In: Olmedo Cifuentes, G.F., Arcos Avilés, D.G., Lara Padilla, H.V. (eds) Emerging Research in Intelligent Systems. CIT 2023. Lecture Notes in Networks and Systems, vol 903. Springer, Cham. https://doi.org/10.1007/978-3-031-52258-1_9
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DOI: https://doi.org/10.1007/978-3-031-52258-1_9
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