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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
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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
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Disability and Rehabilitation: Assistive Technology, 2018
Purpose: Aim of this pilot study was to assess safety and functioning of a microprocessor-controlled knee prosthesis (MPK) after a short familiarization time and no structured physical therapy. Materials and methods: Five elderly, low-active transfemoral
T. Hasenoehrl +7 more
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Purpose: Aim of this pilot study was to assess safety and functioning of a microprocessor-controlled knee prosthesis (MPK) after a short familiarization time and no structured physical therapy. Materials and methods: Five elderly, low-active transfemoral
T. Hasenoehrl +7 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 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
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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
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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 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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European Journal of Orthopaedic Surgery & Traumatology, 2010
Deep infections are among the most severe complications in total knee arthroplasty; infection rates described in recent articles range between 1 and 2%. The most important infection risk prevention measures are skin preparation, antibiotic prophylaxis, and screening and management for methicillin-resistant Staphylococcus aureus (MRSA).
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Deep infections are among the most severe complications in total knee arthroplasty; infection rates described in recent articles range between 1 and 2%. The most important infection risk prevention measures are skin preparation, antibiotic prophylaxis, and screening and management for methicillin-resistant Staphylococcus aureus (MRSA).
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The ???Caviar??? Madreporic Knee Prosthesis
Clinical Orthopaedics and Related Research, 1979The madreporic ("caviar") prosthesis is a hinged knee prosthesis that can be inserted without the use of cement. The surfaces of the intramedullary stems are constructed with contiguous spheres one mm in diameter. These spaces are filled by bone trabeculae and haversian bone, providing permanent biologic fixation.
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Design and preliminary testing of the RIC hybrid knee prosthesis
Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2015We present a novel hybrid knee prosthesis that uses a motor, transmission and control system only for active dynamics tasks, while relying on a spring/damper system for passive dynamics activities. Active dynamics tasks require higher torque, lower speed,
T. Lenzi +4 more
semanticscholar +1 more source