@article { , title = {Highly sensitive contact pressure measurements using FBG patch in endotracheal tube cuff}, 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.}, conference = {Sixth European Workshop on Optical Fibre Sensors}, doi = {10.1117/12.2236859}, eissn = {1996-756X}, issn = {0277-786X}, journal = {Proceedings of SPIE}, note = {Emailed depositor for date of acceptance. KJB 08.06.2016}, organization = {Limerick, Ireland}, publicationstatus = {Published}, publisher = {Society of Photo-optical Instrumentation Engineers}, url = {https://nottingham-repository.worktribe.com/output/787947}, volume = {9916}, keyword = {Fibre Bragg Grating, Intracuff pressure, Contact pressure, Endotracheal tube}, year = {2016}, author = {Correia, R. and Blackman, O. R. and Hernandez, F. U. and Korposh, S. and Morgan, S. P. and Hayes-Gill, B. R. and James, S. W. and Evans, D. and Norris, A.} }