Artificial knees play an important role in transfemoral prostheses, lower extremity exoskeletons and walking robots. Their designs must provide natural kinematics, high strength and stiffness required in the stance phase of gait. Additionally, modern artificial knee is the principal module by means of which the prosthesis control is performed. This paper presents a prototype of an artificial polycentric knee, designed on the basis of the hinge mechanism with cross links. In order to increase strength and stiffness, the elements of the joint have curved supporting surfaces formed in the shape of centroids in relative motion of links of the hinge mechanism. Such construction is a mechanical system with redundant links but it allows for providing desirable characteristics of the artificial knee. Synthesis of the hinge mechanism is made by a method of systematic study of the parameter space, uniformly distributed in a finite dimensional cube. Stiffness of bearing surfaces elements of knee was determined by solving the contact problem with slippage of surfaces relative to each other.


    Access

    Download


    Export, share and cite



    Title :

    BIOSIMILAR ARTIFICIAL KNEE FOR TRANSFEMORAL PROSTHESES AND EXOSKELETONS



    Publication date :

    2016-12-08


    Remarks:

    doi:10.22190/FUME1603321P
    Facta Universitatis, Series: Mechanical Engineering; Vol 14, No 3 (2016); 321-328 ; 2335-0164 ; 0354-2025



    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    DDC:    629



    Designing exoskeletons

    Zuñiga-Aviles, Luis Adrian / Cruz-Martinez, Giorgio Mackenzie | TIBKAT | 2024


    Wearable robots : biomechatronic exoskeletons

    Pons, José L. | Catalogue medicine | 2008


    A Neuromechanical Model of Knee Flexion-Extension Based on Linear Regressors for Neuro-Controlled Exoskeletons

    Bernat, Lluis / Morell, Vicente / Ramon, Jose L. et al. | Springer Verlag | 2022


    Exoskeletons for running and walking

    HERR HUGH M / WALSH CONOR / PALUSKA DANIEL JOSEPH et al. | European Patent Office | 2019

    Free access

    Upper-Limb Exoskeletons for Stroke Rehabilitation

    Ambrosini E. / Dalla Gasperina S. / Gandolla M. et al. | BASE | 2020

    Free access