Ultrasonic needles for bone biopsy

Mathieson, A., Wallace, R., Cleary, R., Li, L., Simpson, H. and Lucas, M. (2017) Ultrasonic needles for bone biopsy. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 64(2), pp. 433-440. (doi: 10.1109/TUFFC.2016.2633286) (PMID:27959807)

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Bone biopsy is an invasive clinical procedure where a bone sample is recovered for analysis during the diagnosis of a medical condition. When the architecture of the bone tissue is required to be preserved, a core-needle biopsy is taken. Although this procedure is performed while the patient is under local anaesthesia, the patient can still experience significant discomfort. Additionally, large haematoma can be induced in the soft tissue surrounding the biopsy site due to the large axial and rotational forces which are applied through the needle to penetrate bone. It is well documented that power ultrasonic surgical devices offer advantages of low cutting force, high accuracy and preservation of soft tissues. This paper reports a study of the design, analysis and test of two novel power ultrasonic needles for bone biopsy that operate using different configurations to penetrate bone. The first utilises micrometric vibrations generated at the distil tip of a full-wavelength resonant ultrasonic device, while the second utilises an ultrasonic-sonic approach where vibrational energy generated by a resonant ultrasonic horn is transferred to a needle via the chaotic motion of a free-mass. It is shown that the dynamic behaviour of the devices identified through experimental techniques closely match the behaviour calculated through numerical and FEA methods, demonstrating that they are effective design tools for these devices. Both devices were able to recover trabecular bone from the metaphysis of an ovine femur, and the biopsy samples were found to be comparable to a sample extracted using a conventional biopsy needle. Furthermore, the resonant needle device was also able to extract a cortical bone sample from the central diaphysis, which is the strongest part of the bone, and the biopsy was found to be superior to the sample recovered by a conventional bone biopsy needle.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Mathieson, Dr Andrew and Li, Mr Li and Cleary, Ms Rebecca and Lucas, Professor Margaret
Authors: Mathieson, A., Wallace, R., Cleary, R., Li, L., Simpson, H., and Lucas, M.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
ISSN (Online):1525-8955
Published Online:07 December 2016
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control 2017
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
610721Ultrasonic Needles based on Mn-doped Ternary PiezocrystalsMargaret LucasEngineering & Physical Sciences Research Council (EPSRC)EP/K020013/1ENG - ENGINEERING SYSTEMS POWER & ENERGY