Intra-tracheal multiplexed sensing of contact pressure and perfusion

Correia, Ricardo; Gadsby, Brett; Korposh, Sergiy; Norris, Andrew M.; Hayes-Gill, Barrie R.; Sinha, Rishie; Hardman, Jonathan G.; Gardner, David S.; Talbot, Simon; Harvey, Daniel; McGlashan, Julian; Morgan, Stephen P.

Abstract

Incorrect endotracheal tube (ETT) cuff inflation pressure causes significant problems for intubated patients. The technical development and first in vivo use of a smart ETT for measurements at the cuff-trachea interface during mechanical ventilation are described. The intra-tracheal multiplexed sensing (iTraXS) ETT contains integrated optical fibre sensors to measure contact pressure and blood perfusion. The device is tested during mechanical ventilation in a porcine model (N=6). For contact pressure, signals were obtained in all 30 measurements. For perfusion, data could be obtained in all 33 measurements. In the 3 cases where the cuff was inflated to an artificially high-level, blood occlusion is observed.

Citation

Correia, R., Gadsby, B., Korposh, S., Norris, A. M., Hayes-Gill, B. R., Sinha, R., …Morgan, S. P. (2022). Intra-tracheal multiplexed sensing of contact pressure and perfusion. Biomedical Optics Express, 13(1), 48-64. https://doi.org/10.1364/BOE.442165

• Journal Article Type: Article
• Acceptance Date: Oct 7, 2021
• Online Publication Date: Dec 3, 2021
• Publication Date: Jan 1, 2022
• Deposit Date: Oct 21, 2021
• Publicly Available Date: Dec 16, 2021
• Journal: Biomedical Optics Express
• Electronic ISSN: 2156-7085
• Peer Reviewed: Peer Reviewed
• Volume: 13
• Issue: 1
• Pages: 48-64
• DOI: https://doi.org/10.1364/BOE.442165
• Public URL: https://nottingham-repository.worktribe.com/output/6506347
• Publisher URL: https://www.osapublishing.org/boe/fulltext.cfm?uri=boe-13-1-48&id=465633