Intra-tracheal multiplexed sensing of contact pressure and perfusion.
Intra-tracheal multiplexed sensing of contact pressure and perfusion.
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DOI:
10.1364/boe.442165
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发表时间:
2022-01-01
影响因子:
3.4
通讯作者:
Morgan SP
中科院分区:
文献类型:
--
作者:
Correia R;Gadsby B;Korposh S;Norris AM;Hayes-Gill BR;Sinha R;Hardman JG;Gardner DS;Talbot S;Harvey D;McGlashan J;Morgan SP
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.