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Ultrasonic wireless powering link of visual cortical prosthesis implant

Lookup NU author(s): Professor Jeffrey Neasham, Dr Graeme Chester, Professor Patrick Degenaar


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© 2017 IEEE. This paper presents a design and implementation of an ultrasonic wireless energy transfer link to a visual cortical prosthesis implant device. Two ultrasonic transducers with 2 mm thickness and 12 mm diameter are implemented from scratch using Pz27 disc shape. The power transfer ultrasound link is demonstrated using 2 mm of tissue mimic in-vitro. The target voltage, required to operate the implant, of 1.8 V, 3.3 V and 5 V is achieved. The ultrasonic link and the overall system efficiencies are found to be 14.99% and 25% respectively. This system is found to be working in 36% of the FDA limit (720 mW/cm2).

Publication metadata

Author(s): Jaafar B, Neasham J, Chester G, Degenaar P

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: IEEE Biomedical Circuits and Systems Conference (BioCAS 2017)

Year of Conference: 2018

Online publication date: 29/03/2018

Acceptance date: 02/04/2016

Publisher: IEEE


DOI: 10.1109/BIOCAS.2017.8325115

Library holdings: Search Newcastle University Library for this item

ISBN: 9781509058037