Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 45 for “"Prosthetic devices"”.
-
Electrical system for interfacing with muscle for use in prosthetic devices
A shortcoming of current prosthetic technology is the quality of afferent feedback to the user. Modern neural interfaces for powered prosthetic limbs do not provide their users with proprioception, the sense of the position of their limbs in space. This could be achieved by stimulating residual …
-
Inverse optimal control for differentially flat systems with application to lower-limb prosthetic devices
Powered prosthetic devices have shown to be capable of restoring natural gait to amputees. However, the commercialization of these devices is faced by some challenges, in particular in prosthetic controller design. A common control framework for these devices is called impedance control. The …
-
An exploration of modality matched mechanotactile feedback via a soft actuator for use in prosthetic devices
… and an overall diminished satisfaction with the prosthetic device, which can ultimately lead to device abandonment. This thesis examines whether a soft actuator made out of elastomer can be used as a way to passively transmit mechanotactile pressure noninvasively and details the design process of …
-
From thought to action
… before reaching movements and the generation of prosthetic control signals through stochastic modeling and estimation. In the first part, I show that temporal and history dependence contributes to the representation of targets in the ensemble spiking activity of neurons in primate dorsal premotor …
-
TÝR - R&D Client for Bionic Prosthetics
… to quickly check vital information from bionic prosthetic devices but also enables them to easily adjust the functionality and access valuable reports. TÝR is a cross-platform application available for Windows 10, Android and iOS and communicates wirelessly via Wi-Fi. This paper describes the …
-
Design of a Novel Mechatronic System to Test Prosthetic Feet Under Specific Walking Activity Loads and Evaluate their Lower Leg Trajectory Error
… are challenged with limited mobility due to prosthetic devices that do not fully restore the functionalities of their biological limbs. While commercially available energy storage and return feet do restore some of the functionalities of a missing limb, the development and use of these …
-
A study of drug-plastic interactions in a variety of plastic containers
<p>In most hospitals today, plastic devices are replacing the traditional metal, glass and rubber. The increased use of polymeric materials as implanted prosthetic devices, catheters, disposable equipment and for the administration of blood, intravenous fluids and drugs has been widely accepted by …
-
Design of a wrist and gripping mechanism for an upper limb prosthesis specifically for the game of golf
… that addresses various problems in existing prosthetic devices.
-
Development and Validation of a Passive Prosthetic Foot Design Framework based on Lower Leg Dynamics
… where the lack of affordable high-performance prosthetic devices forces people to use inadequate limbs that require more effort and exhibit unnatural walking motions. This thesis develops methods for designing customized, high-performance, low-cost, and durable passive prosthetic feet that …
-
Seeing the future, speaking to the past : nomadic projects and thoughts
… of performative activities and the deployment of prosthetic devices. Repetition and absurdity are elements that I utilize to encounter the boundaries between detachment and social engagement, perception and imagining, announcement and silence, interrogation and defiance. Through my experiences as …
-
Promoting enhanced motor planning in prosthesis users via matched limb imitation
… full functional use of upper extremity prosthetic devices is low. Knowledge gained regarding the cortical systems active in amputees performing motor tasks may reveal atypical motor control strategies that contribute to these issues. Substantial evidence demonstrates a strong dependence …
-
Development of light actuated chemical delivery platform on a 2-D array of micropore structure
… pathway of biological cells and develop new prosthetic devices for neurological disorders. In this paper, we demonstrate a light-controlled hydrogel platform that can be used for localized chemical delivery in a high spatial resolution. By utilizing the photothermal behavior of …
-
Design and testing of a low-cost exoskeletal trans-femoral prosthetic knee device for use in developing countries
Prosthetic devices are designed for amputees in developed countries, made with materials, mechanisms, and research budgets prohibitive to individuals and communities in developing countries. A prosthetic knee for trans-femoral amputees is developed at MIT and tested on patients at the Jaipur Foot …
-
Laminar and Transitional Flow disturbances in Diseased and Stented Arteries
… of heart disease as well as design of prosthetic devices such as stents. The current work will systematically study the effects of compliance and complex geometry and the resulting fluid mechanical forces. The objective of this work is to understand the relationship of fluid mechanics …
-
Development of a powered transtibial prosthesis for ball room dancing
… less common activities. As a result, traditional prosthetic devices are designed for a walking/running gait, and are difficult to use for other activities. This study aims to take the first steps to determine if a bionic prosthesis can enable alternate activity modes, not driven by traditional …
-
Silicium Nanodrähte für die extrazelluläre Ableitung elektrischer Aktivität
… confirming the good suitability of the produced devices for cell based sensors. They could be used forbasic research, pharmaceutic studies or novel prosthetic devices.
-
Development of an Open Source Prosthetic Hand Platform
<p><strong>D</strong>evelopment of an Open Source Prosthetic Hand Platform</p> <p> Scott Garrett</p> <p> In the field of upper extremity prosthetic devices, advancements in technology drive the design of products which are becoming capable of restoring the lost functions of the native hand. While …
-
An Investigation on the Corrosion Susceptibilities of Multi-Alloy Total Hip Replacements.
The design of new prosthetic devices with dissimilar metals or alloys in direct physical contact is now being investigated. Previously, the use of dissimilar alloys for the construction of surgical implants has been strongly discouraged because of the opinion that the combinations of alloys was …
-
Design of low-cost, fully passive prosthetic knee for persons with transfemoral amputation in India
… 230,000 above-knee amputees are in need of prosthetic devices in India with a majority of them facing severe socio-economic constraints in their daily lives. However, only a few passive prosthetic knee devices in the market have been designed to enable normative gait and to meet the unique …
-
Force Dynamics of the Rat Lateral Gastrocnemius Muscle after Undergoing Sensory Protection
… Protected muscles as biological actuators in prosthetic devices, and suggest that sensory reinnervation may be a promising strategy to maintain or restore muscle function in individuals with motor impairment.
Page 1 of 3