Results 31 to 40 of about 11,912,514 (216)

Managing the variability of biomechanical characteristics before the preliminary design stage of a medical device [PDF]

open access: yes, 2014
The very high level of requirements for certification procedures often limit research and development departments to innovate using increments and iterations during the design process for medical devices (MD).
MESNARD, Michel   +2 more
core   +3 more sources

Development of an intervertebral disc prosthesis prototype for the canine cervical spine

open access: yesCiência Rural, 2023
: Cervical arthroplasty with disc prosthesis has been proposed as a treatment option for dogs with Cervical Spondylomyelopathy. The present study developed a novel vertebral disc prosthesis for dogs. Sixteen Functional Spinal Units (C5-C6) were collected
Paulo Vinícius Tertuliano Marinho   +6 more
doaj   +1 more source

New comprehensive procedure for custom‐made total ankle replacements: Medical imaging, joint modeling, prosthesis design, and 3D printing

open access: yesJournal of Orthopaedic Research, 2019
Many failures in total joint replacement are associated to prosthesis‐to‐bone mismatch. With recent additive‐manufacturing, that is, 3D‐printing, custom‐made prosthesis can be created by laser‐melting metal powders layer‐by‐layer.
C. Belvedere   +8 more
semanticscholar   +1 more source

Comparative Biomechanical Study of Crosslinked Polyethylene Wear with 36-mm Ceramic Femoral Heads and with 32-mm Metal Femoral Heads [PDF]

open access: yesRevista Brasileira de Ortopedia
Objective This study aims to compare the in vitro wear rate of crosslinked, high molecular weight polyethylene coupled to 36-mm diameter ceramic heads and 32-mm diameter metal heads.
Guilherme Guadagnini Falotico   +5 more
doaj   +4 more sources

Evaluation of Polyethylene Wear in a Brazilian Ultracongruent Knee Prosthesis with a Rotating Platform [PDF]

open access: yesRevista Brasileira de Ortopedia
Objective To evaluate the wear of polyethylene in a Brazilian ultracongruent knee prosthesis with a rotating platform (Rotaflex, Víncula, Rio Claro, SP, Brasil).
José Ricardo Pécora, Valéria Romero
doaj   +4 more sources

Design and Validation of a Powered Knee–Ankle Prosthesis With High-Torque, Low-Impedance Actuators

open access: yesIEEE Transactions on robotics, 2020
In this article, we present the design of a powered knee–ankle prosthetic leg, which implements high-torque actuators with low-reduction transmissions.
Toby Elery   +3 more
semanticscholar   +1 more source

Design of a Semipowered Stance-Control Swing-Assist Transfemoral Prosthesis

open access: yesIEEE/ASME transactions on mechatronics, 2020
This article describes the design of a new type of knee prosthesis called a stance-control swing-assist (SCSA) knee prosthesis. The device is motivated by the recognition that energetically passive stance-controlled microprocessor-controlled knees ...
Jantzen T. Lee, H. Bartlett, M. Goldfarb
semanticscholar   +1 more source

How should we assess the mechanical properties of lower-limb prosthesis technology used in elite sport?: An initial investigation [PDF]

open access: yes, 2013
Despite recent controversy, it is not yet formally recognised how lower-limb prosthesis should be assessed for their performance. To assist in this process, experiments are undertaken to investigate the linearity, stiffness and assessment of feet based ...
Dyer, Bryce T.J.   +2 more
core   +1 more source

Experiência preliminar com novo filtro de veia cava: resultados de 15 implantes Preliminary experience with a new vena cava filter: results of 15 implantations

open access: yesJornal 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
doaj   +1 more source

Survey of transfemoral amputee experience and priorities for the user-centered design of powered robotic transfemoral prostheses

open access: yesJournal 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
doaj   +1 more source

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