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PIEZOELECTRIC POLYMER (PVDF) RIBBON FOR CHOCHLEAR IMPLANTATION - GUIDELINES AND COMPARISONS WITH TOOTHBRUSH STYLE PROTOTYPES

KANDELL, BRIAN M
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1141311212

Abstract Details

2006, MS, University of Cincinnati, Engineering : Materials Science.
This thesis describes the efforts undertaken in the development of a highly sensitive piezoelectric device to eventually be used as a stand-alone cochlear implant. Through previous studies the most important device requirements were found to be highly sensitive with small dimensions, large voltage response in the audible frequency range (~20 Hz – 20,000 Hz), highly impedance matched with water, and be biocompatible. Previous studies by Mukherjee, Dwividi, Mitra, and Kant, respectively, have found the ‘toothbrush’ design to be a highly effective candidate to meet the above requirements with the exception of size limitations. Thus a ‘ribbon’ style device was devised and tested to give a more readily implantable device. Testing of the ribbon style prototypes showed very good correlation to the previous toothbrush tests. Maximum responses given by a single element ribbon device was in the order of 3.5V to 5V. Double element ribbon devices showed much large coupling of individual voltages (~50% increase in toothbrush designs and ~65% to 95% increase in ribbon designs). In addition to the large voltage responses to semi-quantitative testing, the ribbon devices have shown response to frequency in the audible range. Thus, the ribbon devices has shown to be as effective (and in the cases of multi-array systems more effective) as the toothbrush designs in achieving large voltage responses while dramatically reducing the size of the overall device to a point where implantation can be realized in upcoming studies.
Dr. Rodney Roseman (Advisor)
80 p.
Engineering, Materials Science
PVDF; Cochlear Implant; Sensorineural Hearing Loss; Piezoelectricity; Smart Material; Hydroacoustic; Acoustics

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Citations

  • KANDELL, B. M. (2006). PIEZOELECTRIC POLYMER (PVDF) RIBBON FOR CHOCHLEAR IMPLANTATION - GUIDELINES AND COMPARISONS WITH TOOTHBRUSH STYLE PROTOTYPES [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1141311212

    APA Style (7th edition)

  • KANDELL, BRIAN. PIEZOELECTRIC POLYMER (PVDF) RIBBON FOR CHOCHLEAR IMPLANTATION - GUIDELINES AND COMPARISONS WITH TOOTHBRUSH STYLE PROTOTYPES. 2006. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1141311212.

    MLA Style (8th edition)

  • KANDELL, BRIAN. "PIEZOELECTRIC POLYMER (PVDF) RIBBON FOR CHOCHLEAR IMPLANTATION - GUIDELINES AND COMPARISONS WITH TOOTHBRUSH STYLE PROTOTYPES." Master's thesis, University of Cincinnati, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1141311212

    Chicago Manual of Style (17th edition)

ucin1141311212
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© 2006, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.
Release 3.2.12