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User Controlled Interface for Tuning Robotic Knee Prosthesis
IEEE/RJS International Conference on Intelligent RObots and Systems, 2021The tuning process for a robotic prosthesis is a challenging and time-consuming task both for users and clinicians. An automatic tuning approach using reinforcement learning (RL) has been developed for a knee prosthesis to address the challenges of ...
Abbas Alili +5 more
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Journal of Biomedical Materials Research, 1974
AbstractA new variant of the hinge type knee prosthesis has been developed in Sheffield, England. To date, the results of the early clinical trial in five patients are satisfactory, but it is recognized that the operation is highly speculative and continuation of the trial is being conducted with extreme caution. The main features are as follows.
Reginald A. Elson, Norman Watts
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AbstractA new variant of the hinge type knee prosthesis has been developed in Sheffield, England. To date, the results of the early clinical trial in five patients are satisfactory, but it is recognized that the operation is highly speculative and continuation of the trial is being conducted with extreme caution. The main features are as follows.
Reginald A. Elson, Norman Watts
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IEEE/ASME transactions on mechatronics, 2021
This article presents a robotic transfemoral prosthesis that consists of an electrohydraulic knee and a motor-driven ankle. The electrohydraulic knee includes a controllable hydraulic damper to provide stance control and an electrical actuator to provide
Siyuan Gao +3 more
semanticscholar +1 more source
This article presents a robotic transfemoral prosthesis that consists of an electrohydraulic knee and a motor-driven ankle. The electrohydraulic knee includes a controllable hydraulic damper to provide stance control and an electrical actuator to provide
Siyuan Gao +3 more
semanticscholar +1 more source
Orthopaedic Nursing, 2006
Tibiofemoral forces determine polyethylene wear and affect the longevity of total knee prostheses. Previously, investigators relied on theoretic data from mathematical models to predict mechanical forces in the knee. Predictions of tibiofemoral forces are highly variable because of the complex interplay of the muscles involved in activities.
Pamela A. Pulido +3 more
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Tibiofemoral forces determine polyethylene wear and affect the longevity of total knee prostheses. Previously, investigators relied on theoretic data from mathematical models to predict mechanical forces in the knee. Predictions of tibiofemoral forces are highly variable because of the complex interplay of the muscles involved in activities.
Pamela A. Pulido +3 more
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A Lightweight, Efficient Fully Powered Knee Prosthesis With Actively Variable Transmission
IEEE Robotics and Automation Letters, 2019Amputation at the above-knee level severely impairs the ability of an individual to ambulate. As ambulation requires power generation and active control of movements, the passive nature of most available leg prostheses is a major cause of the observed ...
M. Tran +3 more
semanticscholar +1 more source
Design, development, and testing of a lightweight hybrid robotic knee prosthesis
Int. J. Robotics Res., 2018We present a lightweight robotic knee prosthesis with a novel hybrid actuation system that enables passive and active operation modes. The proposed hybrid knee uses a spring-damper system in combination with an electric motor and transmission system ...
T. Lenzi +3 more
semanticscholar +1 more source
The Stanmore Knee Arthrodesis Prosthesis
The Journal of Arthroplasty, 2011Knee arthrodesis is most commonly performed for failed total knee arthroplasty. Conventional arthrodesis techniques are associated with a high incidence of complications and are unsuitable in cases with extensive bone loss. We report our medium-term results using a custom-made cemented knee arthrodesis prosthesis in 10 patients with a mean follow-up of
Gordon Blunn +6 more
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Design of a Knee Mechanism for a Knee Disarticulation Prosthesis [PDF]
23rd Biennial Mechanisms Conference: Machine Elements and Machine Dynamics, 1994 Abstract A new knee mechanism has been designed which is a significant improvement over existing designs used in knee disarticulation (K/D) prostheses. These are prostheses used when the amputation is performed through the knee joint as opposed to amputation performed above the knee.
Sujatha Srinivasan, S. N. Kramer
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Journal of Biomimetics, Biomaterials and Biomedical Engineering, 2018
The human knee is a complex joint (the largest joint of the human body). During the different daily activities, this joint is exposed to significant loads and movements, may in some cases exceed the limit of the mechanical capacities of its components ...
A. Mestar +3 more
semanticscholar +1 more source
The human knee is a complex joint (the largest joint of the human body). During the different daily activities, this joint is exposed to significant loads and movements, may in some cases exceed the limit of the mechanical capacities of its components ...
A. Mestar +3 more
semanticscholar +1 more source
Design and Preliminary Assessment of Lightweight Swing-Assist Knee Prosthesis
Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2018This paper presents the design and control of a lightweight swing assist (SA) knee prosthesis. The SA knee relies on passive stability to provide support during the stance phase of walking and incorporates a small motor and battery to actively assist the
Almaskhan Baimyshev +2 more
semanticscholar +1 more source