Validation Of High Density Electrode Arrays For Cochlear Implants
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Validation Of High Density Electrode Arrays For Cochlear Implants
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Author : Jessica Dominique Falcone
language : en
Publisher:
Release Date : 2011
Validation Of High Density Electrode Arrays For Cochlear Implants written by Jessica Dominique Falcone and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Microelectromechanical systems categories.
Creating high resolution, or high-density, electrode arrays may be the key for improving cochlear implant users' speech perception in noise, comprehension of lexical languages, and music appreciation. Contemporary electrode arrays use multipolar stimulation techniques such as current steering (shifting the spread of neural excitation in between two physical electrodes) and current focusing (narrowing of the neural spread of excitation) to increase resolution and more specifically target the neural population. Another approach to increasing resolution incorporates microelectromechanical systems (MEMS) fabrication to create a thin film microelectrode (TFM) array with a series of high density electrodes. Validating the benefits of high density electrode arrays requires a systems-level approach. This hypothesis will be tested computationally via cochlea and auditory nerve simulations, and in vitro studies will provide structural proof-of-concept.
A Polymer Cochlear Electrode Array Atraumatic Deep Insertion Tripolar Stimulation And Long Term Reliability
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Author : Tae Mok Gwon
language : en
Publisher: Springer
Release Date : 2018-05-24
A Polymer Cochlear Electrode Array Atraumatic Deep Insertion Tripolar Stimulation And Long Term Reliability written by Tae Mok Gwon and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-05-24 with Technology & Engineering categories.
This book describes the design, fabrication and evaluation of a polymer-based neural interface for a cochlear electrode array, reviewed in terms of fabrication process, functionality, and reliability. Polymer-based devices have attracted attention in the neural prosthetic field due to their flexibility and compatibility with micro-fabrication process. A liquid crystal polymer (LCP) is an inert, highly water-resistant polymer suitable for the encapsulation of electronic components and as a substrate material for fabricating neural interfaces. The author has designed, fabricated, and evaluated an LCP-based cochlear electrode array for an improved polymer-based cochlear implant. The thesis deals with 3 key topics: atraumatic deep insertion, tripolar stimulation, and long-term reliability. Atraumatic insertion of the intracochlear electrode and resulting preservation of residual hearing have become essential in state–of-the-art cochlear implantation. A novel tapered design of an LCP-based cochlear electrode array is presented to meet such goals. For high-density and pitch-recognizable cochlear implant, channel interaction should be avoided. Local tripolar stimulation using multi-layered electrode sites are shown to achieve highly focused electrical stimulation. This thesis addresses another vital issue in the polymer-based neural implants: the long-term reliability issue. After suggesting a new method of forming mechanical interlocking to improve polymer-metal adhesion, the author performs accelerating aging tests to verify the method’s efficacy. The aforementioned three topics have been thoroughly examined through various in vitro and in vivo studies. Verification foresees the development of LCP-based cochlear electrode array for an atraumatic deep insertion, advanced stimulation, and long-term clinical implant.
Bridging The Gap In Neuroelectronic Interfaces
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Author : Jeffrey R. Capadona
language : en
Publisher: Frontiers Media SA
Release Date : 2020-07-09
Bridging The Gap In Neuroelectronic Interfaces written by Jeffrey R. Capadona and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-09 with categories.
Functional Validation Of A Novel Technique For Assembling High Density Polyimide Cochlear Implants
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Author : Alton Russell Sharpe
language : en
Publisher:
Release Date : 2012
Functional Validation Of A Novel Technique For Assembling High Density Polyimide Cochlear Implants written by Alton Russell Sharpe and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Finite element method categories.
It has been hypothesized that increasing the number of active sites on a cochlear implant electrode array will enable the recipient to distinguish a higher number of pitch precepts, thus creating a more natural sound. While DSP processing strategies for cochlear implants have evolved significantly to address this, technology for the actual electrode array has remained relatively constant and limits the number of physical electrodes possible. Previous work introduced the concept of using Thin-Film Array (TFA) technology to allow for much higher site densities, although the original devices proved unreliable during surgical insertion tests. This work presents a new method of combining polyimide-based TFA's with supporting silicone insertion platforms to create assembled electrode arrays that are a more viable option for surgical insertion. The electrical and mechanical properties of these assemblies are investigated with physical deformation tests and finite element analysis in COMSOL to quantify how they will perform upon insertion into the cochlea, and the preliminary results of a surgical insertion study into human cadaveric temporal bones will be discussed.
Scientific Foundations Of Audiology
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Author : Anthony T. Cacace
language : en
Publisher: Plural Publishing
Release Date : 2016-04-15
Scientific Foundations Of Audiology written by Anthony T. Cacace and has been published by Plural Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-15 with Medical categories.
With advancements across various scientific and medical fields, professionals in audiology are in a unique position to integrate cutting-edge technology with real-world situations. Scientific Foundations of Audiology provides a strong basis and philosophical framework for understanding various domains of hearing science in the context of contemporary developments in genetics, gene expression, bioengineering, neuroimaging, neurochemistry, cochlear and mid-brain implants, associated speech processing and understanding, molecular biology, physics, modeling, medicine, and clinical practice. Key features of this text include: Highly technical information presented in a cohesive and understandable manner (i.e., concepts without complex equations)Discussion of integrating newly developed technology within the clinical practice of audiologyState-of-the-art contributions from a stellar array of international, world-class experts Scientific Foundations of Audiology is geared toward doctoral students in audiology, physics, and engineering; residents in otolaryngology, neurology, neurosurgery, and pediatrics; and those intermediaries between innovation and clinical reality.
World Congress On Medical Physics And Biomedical Engineering September 7 12 2009 Munich Germany
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Author : Olaf Dössel
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-01-04
World Congress On Medical Physics And Biomedical Engineering September 7 12 2009 Munich Germany written by Olaf Dössel and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-04 with Technology & Engineering categories.
Present Your Research to the World! The World Congress 2009 on Medical Physics and Biomedical Engineering – the triennial scientific meeting of the IUPESM - is the world’s leading forum for presenting the results of current scientific work in health-related physics and technologies to an international audience. With more than 2,800 presentations it will be the biggest conference in the fields of Medical Physics and Biomedical Engineering in 2009! Medical physics, biomedical engineering and bioengineering have been driving forces of innovation and progress in medicine and healthcare over the past two decades. As new key technologies arise with significant potential to open new options in diagnostics and therapeutics, it is a multidisciplinary task to evaluate their benefit for medicine and healthcare with respect to the quality of performance and therapeutic output. Covering key aspects such as information and communication technologies, micro- and nanosystems, optics and biotechnology, the congress will serve as an inter- and multidisciplinary platform that brings together people from basic research, R&D, industry and medical application to discuss these issues. As a major event for science, medicine and technology the congress provides a comprehensive overview and in–depth, first-hand information on new developments, advanced technologies and current and future applications. With this Final Program we would like to give you an overview of the dimension of the congress and invite you to join us in Munich! Olaf Dössel Congress President Wolfgang C.
Neurobionics
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Author : Robert K. Shepherd
language : en
Publisher: John Wiley & Sons
Release Date : 2016-08-29
Neurobionics written by Robert K. Shepherd and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-08-29 with Science categories.
Technological advances have greatly increased the potential for, and practicability of, using medical neurotechnologies to revolutionize how a wide array of neurological and nervous system diseases and dysfunctions are treated. These technologies have the potential to help reduce the impact of symptoms in neurological disorders such as Parkinson’s Disease and depression as well as help regain lost function caused by spinal cord damage or nerve damage. Medical Neurobionics is a concise overview of the biological underpinnings of neurotechnologies, the development process for these technologies, and the practical application of these advances in clinical settings. Medical Neurobionics is divided into three sections. The first section focuses specifically on providing a sound foundational understanding of the biological mechanisms that support the development of neurotechnologies. The second section looks at the efforts being carried out to develop new and exciting bioengineering advances. The book then closes with chapters that discuss practical clinical application and explore the ethical questions that surround neurobionics. A timely work that provides readers with a useful introduction to the field, Medical Neurobionics will be an essential book for neuroscientists, neuroengineers, biomedical researchers, and industry personnel.
Emerging Capabilities And Applications Of Wireless Power Transfer
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Author : Triviño-Cabrera, Alicia
language : en
Publisher: IGI Global
Release Date : 2018-09-21
Emerging Capabilities And Applications Of Wireless Power Transfer written by Triviño-Cabrera, Alicia and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-21 with Technology & Engineering categories.
Technologies that enable powering a device without the need for being connected with a cable to the grid are gaining attention in recent years due to the advantages that they provide. They are a commodity to users and provide additional functionalities that promote autonomy among the devices. Emerging Capabilities and Applications of Wireless Power Transfer is an essential reference source that analyzes the different applications of wireless power transfer technologies and how the technologies are adapted to fulfill the electrical, magnetic, and design-based requirements of different applications. Featuring research on topics such as transfer technologies, circuital analysis, and inductive power transfer, this book is a vital resource for academicians, electrical engineers, scientists, researchers, and industry professionals seeking coverage on device power and creating autonomy through alternative power options for devices.
Robot Assisted Ear Surgery
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Author : Paul Van De Heyning
language : en
Publisher: Frontiers Media SA
Release Date : 2022-10-26
Robot Assisted Ear Surgery written by Paul Van De Heyning and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-26 with Medical categories.
Nanotechnologies In Neuroscience And Neuroengineering
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Author : Ioan Opris
language : en
Publisher: Frontiers Media SA
Release Date : 2020-05-05
Nanotechnologies In Neuroscience And Neuroengineering written by Ioan Opris and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-05-05 with categories.