Results 21 to 30 of about 531,488 (321)

Design and Backdrivability Modeling of a Portable High Torque Robotic Knee Prosthesis With Intrinsic Compliance for Agile Activities

open access: yesIEEE/ASME transactions on mechatronics, 2022
High-performance prostheses are crucial to enable versatile activities like walking, squatting, and running for lower extremity amputees. State-of-the-art prostheses are either not powerful enough to support demanding activities or have low compliance ...
Junxi Zhu   +4 more
semanticscholar   +1 more source

A Power-Capable Knee Prosthesis With Ballistic Swing-Phase

open access: yesIEEE Transactions on Medical Robotics and Bionics, 2022
This paper proposes a new approach to the design of a power-capable prosthesis; namely, one that expands the behavioral capability of a knee prosthesis into the powered quadrants of the power plane, without sacrificing the range of capable behaviors in ...
Steven Culver, L. Vailati, M. Goldfarb
semanticscholar   +1 more source

Intraoperative sensor technology quantifies inter-prosthesis pressure for predicting lower limb alignment after Oxford unicompartmental knee arthroplasty

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Purpose: The aim of this study is to quantify inter-prosthetic pressures at different knee angles in Oxford unicompartmental knee arthroplasty (OUKA) and its correlation with postoperative lower limb alignment.Methods: This study included 101 patients ...
Juncheng Ge   +9 more
doaj   +1 more source

Review of Recent Progress in Robotic Knee Prosthesis Related Techniques: Structure, Actuation and Control

open access: yesJournal of Bionic Engineering, 2021
As the essential technology of human-robotics interactive wearable devices, the robotic knee prosthesis can provide above-knee amputations with functional knee compensations to realize their physical and psychological social regression.
Yuanxi Sun   +12 more
semanticscholar   +1 more source

Effect of a Swing-Assist Knee Prosthesis on Stair Ambulation

open access: yesIEEE transactions on neural systems and rehabilitation engineering, 2021
This paper describes stair ambulation control and functionality of a semi-powered knee prosthesis that supplements nominally passive prosthesis behavior with swing-phase assistance. A set of stair ascent and descent controllers are described.
J. T. Lee, M. Goldfarb
semanticscholar   +1 more source

Powered Prosthesis Locomotion on Varying Terrains: Model-Dependent Control with Real-Time Force Sensing [PDF]

open access: yesRA-L 7(2):5151-5158, 2022, 2021
Lower-limb prosthesis wearers are more prone to falling than non-amputees. Powered prostheses can reduce this instability of passive prostheses. While shown to be more stable in practice, powered prostheses generally use model-independent control methods that lack formal guarantees of stability and rely on heuristic tuning.
arxiv   +1 more source

A lightweight robotic leg prosthesis replicating the biomechanics of the knee, ankle, and toe joint

open access: yesScience Robotics, 2022
Robotic leg prostheses promise to improve the mobility and quality of life of millions of individuals with lower-limb amputations by imitating the biomechanics of the missing biological leg. Unfortunately, existing powered prostheses are much heavier and
M. Tran   +3 more
semanticscholar   +1 more source

A Novel Framework to Facilitate User Preferred Tuning for a Robotic Knee Prosthesis

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
The tuning of robotic prosthesis control is essential to provide personalized assistance to individual prosthesis users. Emerging automatic tuning algorithms have shown promise to ease the device personalization procedure.
Abbas Alili   +6 more
doaj   +1 more source

Can microprocessor knees reduce the disparity in trips and falls risks between above and below knee prosthesis users?

open access: yesPLoS ONE, 2022
While all lower limb prosthesis walkers have a high risk of tripping and/or falling, above knee prosthesis users are reported to fall more frequently. Recognising this, engineers designed microprocessor knees (MPK) to help mitigate these risks, but to ...
Michael McGrath   +7 more
doaj   +1 more source

Medium-term Results Evaluation between Gender-Specific x Conventional Total Knee Arthroplasty Prostheses [PDF]

open access: yesRevista Brasileira de Ortopedia, 2020
Objective To compare the postoperative functional result of total knee arthroplasty (TKA) with gender-specific prosthesis versus TKA with conventional prosthesis in a 5-year period.
José Luiz Colleoni   +5 more
doaj   +3 more sources

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