Results 31 to 40 of about 342,532 (326)
Journal of NeuroEngineering and Rehabilitation, 2021 Background Transfemoral amputees experience a complex host of physical, psychological, and social challenges, compounded by the functional limitations of current transfemoral prostheses.
Chiara Fanciullacci +16 more
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Design of EMG-driven Musculoskeletal Model for Volitional Control of a Robotic Ankle Prosthesis [PDF]
arXiv, 2022 Existing robotic lower-limb prostheses use autonomous control to address cyclic, locomotive tasks, but they are inadequate to operate the prosthesis for daily activities that are non-cyclic and unpredictable. To address this challenge, this study aims to design a novel electromyography (EMG)-driven musculoskeletal model for volitional control of a ...
arxiv
Jornal Vascular Brasileiro, 2008 Este estudo apresenta resultados preliminares obtidos com um novo filtro permanente de veia cava, baseado no desenho de Greenfield, com três hastes prolongadas de um total de seis, para dar estabilidade central ao filtro na luz da veia cava. Neste artigo,
Winston B. Yoshida +4 more
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ESPOCH Congresses, 2021 The objective was to build a prosthesis with its elements such as socket, forearm and hand. The prostheses that are below the elbow generated the motivation for the investigation, being an important factor the correct adaptation of the socket to the ...
E. Pozo, E. Medina, A. Pazmiño
doaj +1 more source
Integrated and Lightweight Design of Electro-hydraulic Ankle Prosthesis [PDF]
arXiv, 2023 For lower limb amputees, an active ankle joint prosthesis can provide basic mobility functions. This study focuses on an ankle joint prosthesis system based on the principle of electric-hydraulic actuation. By analyzing the characteristics of human gait cycles and the mechanics of ankle joint movement, a lightweight and integrated ankle joint ...
arxiv
Personalized On-line Adaptation of Kinematic Synergies for Human-Prosthesis Interfaces [PDF]
IEEE Trans. Cybern. (2019) 1-15, 2019 Synergies have been adopted in prosthetic limb applications to reduce complexity of design, but typically involve a single synergy setting for a population and ignore individual preference or adaptation capacity. However, personalization of the synergy setting is necessary for the effective operation of the prosthetic device.
arxiv +1 more source
Robotic Knee Tracking Control to Mimic the Intact Human Knee Profile Based on Actor-critic Reinforcement Learning [PDF]
, 2021 We address a state-of-the-art reinforcement learning (RL) control approach to automatically configure robotic prosthesis impedance parameters to enable end-to-end, continuous locomotion intended for transfemoral amputee subjects. Specifically, our actor-critic based RL provides tracking control of a robotic knee prosthesis to mimic the intact knee ...
arxiv +1 more source
Sensorimotor-inspired Tactile Feedback and Control Improve Consistency of Prosthesis Manipulation in the Absence of Direct Vision [PDF]
, 2021 The lack of haptically aware upper-limb prostheses forces amputees to rely largely on visual cues to complete activities of daily living. In contrast, able-bodied individuals inherently rely on conscious haptic perception and automatic tactile reflexes to govern volitional actions in situations that do not allow for constant visual attention.
arxiv +1 more source
Intraoral framework pick-up technique to improve fit of a metal-resin implant prosthesis
Indian Journal of Dental Research, 2012 The achievement of passive fit is an important prerequisite for the prevention of complications in full-arch screw-retained implant prosthesis. With cemented prosthesis, the cementation compensates for the discrepancies in the cast framework, but the ...
Mirza Rustum Baig, Rajan Gunaseelan
doaj +1 more source
The Design and Testing of a PEA Powered Ankle Prosthesis Driven by EHA
Biomimetics, 2022 Several studies have shown that actuation concepts such as Serial elastic actuator (SEA) can reduce peak power and energy consumption in ankle prostheses.
Qitao Huang, Bowen Li, Hongguang Xu
doaj +1 more source