Progress Towards the Miniaturization of an Ultrasonic Scalpel for Robotic Endoscopic Surgery Using Mn:PIN-PMN-PT High Performance Piezocrystals

Fenu, N. G. , Giles-Donovan, N., Li, X. , Liang, Z., Chibli, A. H., Luo, H., Stock, C., Zhang, S., Lucas, M. and Cochran, S. (2020) Progress Towards the Miniaturization of an Ultrasonic Scalpel for Robotic Endoscopic Surgery Using Mn:PIN-PMN-PT High Performance Piezocrystals. In: IEEE International Ultrasonics Symposium (IUS 2020), Online, 07-11 Sep 2020, ISBN 9781728154480 (doi:10.1109/IUS46767.2020.9251823)

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Abstract

Mn:PIN-PMN-PT piezocrystals are under consideration for potential use in miniaturised ultrasonic scalpels for robotic minimally-invasive surgery where small size and light weight may be advantageous. Electromechanical coupling coefficient k > 0.9 for both [001] and [011] poled Mn:PIN-PMN-PT was calculated, confirming the well-recognized higher efficiency of this material when compared to standard piezoceramics. Novel transducer design strategies have been explored, and outcomes are discussed. The introduction of components with additional compliance in a standard d 31 mode transducer has been shown to drop the resonant frequency of the first longitudinal mode by more than 17%, with more than 75% improvement in tip/blade displacement. Results suggest that the combination of high performance piezocrystals with highly compliant components may be a useful route to follow to achieve our miniaturisation target.

Item Type:Conference Proceedings
Additional Information:This work was supported by Ultrasurge, Surgery Enabled by Ultrasonics, funded by the Engineering and Physical Sciences Research Council (EPSRC), EP/R045291/1. Nathan Giles-Donovan is sponsored by EPSRC/Thales UK iCASE Award No. EP/P510506.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cochran, Professor Sandy and Lucas, Professor Margaret and Giles-Donovan, Mr Nathan and Fenu, Dr Nicola and Chibli, Mr Abdul Hadi and Li, Dr Xuan
Authors: Fenu, N. G., Giles-Donovan, N., Li, X., Liang, Z., Chibli, A. H., Luo, H., Stock, C., Zhang, S., Lucas, M., and Cochran, S.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
ISSN:1948-5727
ISBN:9781728154480
Copyright Holders:Copyright © 2020 IEEE
First Published:First published in 2020 IEEE International Ultrasonics Symposium (IUS)
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
300671Surgery enabled by ultrasonicsMargaret LucasEngineering and Physical Sciences Research Council (EPSRC)EP/R045291/1ENG - Systems Power & Energy