The Fabrication and Integration of a 15 MHz Array Within a Biopsy Needle

McPhillips, R., Cochran, S. , Vinnicombe, S., Watson, D., Gao, J., Desmulliez, M. P.Y. and Demore, C. (2017) The Fabrication and Integration of a 15 MHz Array Within a Biopsy Needle. In: 2017 IEEE International Ultrasonics Symposium (IUS), Washington, D.C., USA, 6-9 Sept 2017, ISBN 9781538633830 (doi: 10.1109/ULTSYM.2017.8091987)

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Abstract

It is proposed that integrating ultrasound transducer arrays at the tip of tools such as biopsy needles could enable valuable, real-time image feedback during interventional procedures. High-resolution ultrasound imaging has the potential to aid navigation of interventional tools, and to assist diagnosis or treatment via in-vivo tissue characterisation in the breast, amongst many other applications. In order to produce miniature transducer arrays incorporated within biopsy needle-sized packages (2-5 mm diameter), the challenges in micromachining and handling transducer materials at this scale must be overcome. This paper presents fabrication processes used in the micromachining of a 16 element 15 MHz PIN-PMN-PT piezocrystal-polymer composite array and its integration into an 11 G breast biopsy needle. Particular emphasis is given to the manufacturing of the 1-3 dice-and-fill piezocrystal composite, and establishing electrical interconnects. Characterisation measurements have demonstrated operation of each of the 16 elements within the needle case.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Watson, Dr David Ewan and Cochran, Professor Sandy and McPhillips, Miss Rachael and Demore, Dr Christine
Authors: McPhillips, R., Cochran, S., Vinnicombe, S., Watson, D., Gao, J., Desmulliez, M. P.Y., and Demore, C.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
ISSN:1948-5727
ISBN:9781538633830
Published Online:02 November 2017
Copyright Holders:Copyright © 2017 IEEE
First Published:First published in 2017 IEEE International Ultrasonics Symposium (IUS)
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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