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.
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Showing 1 to 20 of 58 for “"medical implants"”.
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Development of Precision 3D-Printed Medical Implants
… and antibacterial properties in biomedical materials. The osteogenic response of both osteoblast and osteocyte cells and the bacteria S. aureus adhesion on a newly developed titanium alloy Ti-12Nb-12Zr-12Sn alloy (Ti12), Ti-6Al-4V alloy (Ti64), and commercially pure titanium (CPT) …
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Corrosion modeling of magnesium-based medical implants
… the nonbiodegradable materials in the field of medical implants. In this scope, magnesium and its alloys were widely investigated due to their superior biocompatibility. However, magnesium is a highly active metal and has a high corrosion rate in aqueous environments especially body fluids. …
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Wireless Communication with Medical Implants: Antennas and Propagation
With the increased sophistication of medical implants, there is a growing need for flexible high-speed communication with the implant from outside the body. Today the communication is done by an inductive link between the implant and an external coil at a low carrier frequency. Extended range and …
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Energy management techniques for ultra-small bio-medical implants
Trends in the medical industry have created a growing demand for implantable medical devices. In particular, the need to provide medical professionals a means to continuously monitor bio-markers over long time scales with increased precision is paramount to efficient healthcare. To make medical …
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Effective Methods To Reduce The RF-Induced Heating For Medical Implants In MRI
… of the primary safety concerns for patients with medical implants undergoing magnetic resonance imaging (MRI). Due to this potential hazard, patients with medical devices are usually contraindicated from the MRI process. With the steady growth in the number of patients with medical implants that …
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Anti-Adhesive Si-and F-Doped DLC Coatings and Micro-Nanostructured Surfaces for Medical Implants
… surfaces with anti-bacterial properties for biomedical applications. In this study a DLC coating and Si- and F- doped DLC coatings with various Si and F contents were prepared by a radio frequency plasma-enhanced chemical vapor deposition (rf-PECVD) technology. Under water contact angle method …
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RF-induced Heating Assessment and Heating Reduction Techniques for Partially-In and Partially-Out Medical Implants in MRI
… Resonance Imaging (MRI) is a non-invasive medical imaging technology that employs strong static, gradient, and radio frequency (RF) fields to produce detailed images of internal body structures. However, patients with partially-in and partially-out (PIPO) medical implants who require MRI …
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The Tissue-reduced Virtual Family Models for RF-induced Heating Evaluation of Passive Medical Implants at 1.5 T and 3 T
… safety concern for patients with implantable medical devices under magnetic resonance imaging (MRI) scanning. The implanted device may lead to a high temperature rise near device edges and cause tissue damage. Thus, the RF-induced heating near the device needs to be properly evaluated for the …
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Comprehensive MRI Safety Assessment: Impact of Strain-Relief Loop Position, Lateral Movement, and Varying Field Strengths on RF-Induced Heating of Medical Implants
… benefits, individuals with active implantable medical devices (AIMDs) and passive implantable medical devices (PIMDs) are often restricted from undergoing MRI due to potential RF interactions with the metallic components of these implants, which can lead to thermal damage to surrounding …
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Low power data acquisition for microImplant biometric monitoring of tremors
In recent years, trends in the medical industry have created a growing demand for implantable medical devices. In particular, the need to provide doctors a means to continuously monitor biometrics over long time scales with increased precision is paramount to efficient healthcare. To make medical …
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Digitally-assisted, ultra-low power circuits and systems for medical applications
In recent years, trends in the medical industry have created a growing demand for a variety of implantable medical devices. At the same time, advances in integrated circuits techniques, particularly in CMOS, have opened possibilities for advanced implantable systems that are very small and consume …
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In search of martensite : titanium-tantalum shape-memory alloy
There is a broad range of life-saving medical implants and devices that rely on the shape-memory (SME) and superelastic properties of various nickel-based alloys [8]. Unfortunately, there is also serious concern about the toxicity of nickel. Titanium based shape-memory alloys have been noted as …
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Designing Immune-Instructive Biomaterials: The Interplay of Biomaterial surface, IgG Unfolding, and Macrophage Modulation
… promote healing and improve the integration of medical implants. These findings contribute to the development of smarter biomaterials that work in harmony with the body’s natural defences, offering new possibilities for regenerative medicine and immune modulation.
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The Effect of Buckling on the Interface Conductance in Flexible Lithium-Ion Batteries
… used in flexible applications including medical implants, wearable electronics, consumer electronics or roll-up displays are often subjected to bending and buckling during their operation life. It is imperative to investigate the impact of buckling on the performance of the flexible …
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Evaluation of monolayer protected metal nanoparticle technology
… from consumer products to maritime shipping to medical instruments. The formation of proteic films can adversely affect the performance of materials and is often a limiting factor in device effectiveness. In many instances such as sensors or medical implants, regular cleaning or disposal of the …
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A Rubric for Electrochemical Testing of Metallic Biomaterials
… is a major factor for the failure of metallic medical implants. Testing a metal’s suseptability to corrosion prior to implantation is key to a successful implantation. Electrochemical processes were used in this study to evaluate the characteristics of corrosion of both AISI 316 stainless steel …
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Implantable electrode structures and their RF effects in MRI machines
Medical implants incorporating long insulated conductors can generate a serious heating hazard to a patient undergoing a Magnetic Resonance Imaging (MRI) scan. Under the high-power RF field from an MRI machine, the conductors can behave as antennas and concentrate energy into small regions of body …
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Towards and industrial ecosystem for power MEMS
… means of powering remote autonomous sensors or medical implants such as pacemakers.
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Effect of Aligned Nanoscale Surface Structures on Microbial Adhesion
… be contextually beneficial or detrimental. In medical implants, biofilms cause infections leading to additional healthcare costs of billions of dollars. Studies have found that micro/nanoscale surface topography can significantly alter (i.e., promote or hinder) the process of biofilm formation. …
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