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)

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: Li, Dr Xuan and Cochran, Professor Sandy and Fenu, Dr Nicola and Chibli, Mr Abdul Hadi and Lucas, Professor Margaret and Giles-Donovan, Mr Nathan
• 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

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
300671		Surgery enabled by ultrasonics	Margaret Lucas	Engineering and Physical Sciences Research Council (EPSRC)	EP/R045291/1	ENG - Systems Power & Energy