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Highly sensitive contact pressure measurements using FBG patch in endotracheal tube cuff

Correia, R.; Blackman, O. R.; Hernandez, F. U.; Korposh, S.; Morgan, S. P.; Hayes-Gill, B. R.; James, S. W.; Evans, D.; Norris, A.

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Authors

R. Correia

O. R. Blackman

F. U. Hernandez

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SERHIY KORPOSH S.Korposh@nottingham.ac.uk
Professor of Photonics Instrumentation

BARRIE HAYES-GILL BARRIE.HAYES-GILL@NOTTINGHAM.AC.UK
Professor of Electronic Systems and Medical Devices

S. W. James

D. Evans

A. Norris



Abstract

A method for measuring the contact pressure between an endotracheal tube cuff and the trachea was designed and developed by using a fibre Bragg grating (FBG) based optical fibre sensor. The FBG sensor is encased in an epoxy based UV-cured cuboid patch and transduces the transversely loaded pressure into an axial strain that induces wavelength shift of the Bragg reflection. The polymer patch was created by using a PTFE based mould and increases tensile strength and sensitivity of the bare fibre FBG to pressure to 2.10×10-2 nm/kPa. The characteristics of the FBG patch allow for continuous measurement of contact pressure. The measurement of contact pressure was demonstrated by the use of a 3D printed model of a human trachea. The influence of temperature on the measurements is reduced significantly by the use of a second FBG sensor patch that is not in contact with the trachea. Intracuff pressure measurements performed using a commercial manometer agreed well with the FBG contact pressure measurements. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Citation

Correia, R., Blackman, O. R., Hernandez, F. U., Korposh, S., Morgan, S. P., Hayes-Gill, B. R., …Norris, A. (2016). Highly sensitive contact pressure measurements using FBG patch in endotracheal tube cuff. Proceedings of SPIE, 9916, Article 99161F. https://doi.org/10.1117/12.2236859

Journal Article Type Conference Paper
Conference Name Sixth European Workshop on Optical Fibre Sensors
Conference Location Limerick, Ireland
Online Publication Date May 30, 2016
Publication Date May 30, 2016
Deposit Date Jun 8, 2016
Publicly Available Date Jun 8, 2016
Journal Proceedings of SPIE
Print ISSN 0277-786X
Electronic ISSN 1996-756X
Publisher Society of Photo-optical Instrumentation Engineers
Peer Reviewed Peer Reviewed
Volume 9916
Article Number 99161F
Book Title Sixth European Workshop on Optical Fibre Sensors
DOI https://doi.org/10.1117/12.2236859
Keywords Fibre Bragg Grating, Intracuff pressure, Contact pressure, Endotracheal tube
Public URL https://nottingham-repository.worktribe.com/output/787947
Publisher URL https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9916/1/Highly-sensitive-contact-pressure-measurements-using-FBG-patch-in-endotracheal/10.1117/12.2236859.short
Additional Information R. Correia ; O.R. Blackman ; F.U. Hernandez ; S. Korposh ; S.P. Morgan ; B.R. Hayes-Gill ; S.W. James ; D. Evans ; A. Norris " Highly sensitive contact pressure measurements using FBG patch in endotracheal tube cuff", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 965704 (May 30, 2016); doi:10.1117/12.2236859 ; http://dx.doi.org/10.1117/12.2236859 . Copyright 2016 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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