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Springer Theses

A Polymer Cochlear Electrode Array: Atraumatic Deep Insertion, Tripolar Stimulation, and Long-Term Reliability

Authors: Gwon, Tae Mok

  • Nominated as an outstanding PhD Thesis by the Department of Electrical and Computer Engineering, Seoul National University, Korea
  • Addresses three key topics pertaining to polymer-based neural implants: atraumatic deep insertion, tripolar stimulation, and long-term reliability
  • Describes the design, fabrication, and evaluation of LCP-based cochlear electrode array for an improved polymer-based cochlear implant
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eBook 91,62 €
price for Spain (gross)
  • ISBN 978-981-13-0472-9
  • Digitally watermarked, DRM-free
  • Included format: EPUB, PDF
  • ebooks can be used on all reading devices
  • Immediate eBook download after purchase
Hardcover 114,39 €
price for Spain (gross)
  • ISBN 978-981-13-0471-2
  • Free shipping for individuals worldwide
  • Usually dispatched within 3 to 5 business days.
  • The final prices may differ from the prices shown due to specifics of VAT rules
About this book

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.

About the authors

Dr. Tae Mok Gwon was a member of the NanoBio-electronics & Systems Laboratory, Department of Electrical and Computer Engineering, Seoul National University, Korea. He is currently a Senior engineer at Semiconductor R&D center, Samsung Electronics Co., Ltd..

Table of contents (5 chapters)

Buy this book

eBook 91,62 €
price for Spain (gross)
  • ISBN 978-981-13-0472-9
  • Digitally watermarked, DRM-free
  • Included format: EPUB, PDF
  • ebooks can be used on all reading devices
  • Immediate eBook download after purchase
Hardcover 114,39 €
price for Spain (gross)
  • ISBN 978-981-13-0471-2
  • Free shipping for individuals worldwide
  • Usually dispatched within 3 to 5 business days.
  • The final prices may differ from the prices shown due to specifics of VAT rules
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Bibliographic Information

Bibliographic Information
Book Title
A Polymer Cochlear Electrode Array: Atraumatic Deep Insertion, Tripolar Stimulation, and Long-Term Reliability
Authors
Series Title
Springer Theses
Copyright
2018
Publisher
Springer Singapore
Copyright Holder
Springer Nature Singapore Pte Ltd.
eBook ISBN
978-981-13-0472-9
DOI
10.1007/978-981-13-0472-9
Hardcover ISBN
978-981-13-0471-2
Series ISSN
2190-5053
Edition Number
1
Number of Pages
XXV, 88
Number of Illustrations
62 b/w illustrations
Topics