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Conceptual design of a polycentric knee prosthesis for transfemoral amputees in Venezuela

机译：委内瑞拉经罚金患者的多康膝关节假体的概念设计

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This research is aimed to establish the conceptual design of a knee prosthesis for transfemoral amputees in Venezuela. A state-of-the-art review was carried out and interviews with users were performed in order to state the design criteria. Taking these into account, the concept of the prosthetis was based on a voluntary control four-bar linkage prosthetic knee mechanism. This provides stability during the initial contact and stance, as well as ability to initiate voluntary flexion toward late stance before the toe-off. As for the alignment of the prosthesis, the orientation angle on the lower limb was found to be a very important parameter to bear in mind, given its incidence in the location of the instantaneous center of rotation of the mechanism (anterior or posterior) with respect to the ground reaction force vector during walking.
机译：该研究旨在建立委内瑞拉患者膝关节假肢的概念设计。 进行了最先进的审查，并进行了与用户的访谈，以便说明设计标准。 考虑到这些，假肢的概念是基于自愿控制四杆联动假肢膝关节机制。 这在初始接触和立场期间提供了稳定性，以及在脚趾之前启动自愿屈曲的能力。 至于假体的对准，发现下肢上的取向角是考虑到机构（前部或后部或后部）的瞬时旋转中心的位置 走路期间的地面反作用力矢量。

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