Non-invasive respiratory monitoring using long-period fiber grating sensors.
In non-invasive ventilation, continuous monitoring of respiratory volumes is essential. Here, we present a method for the measurement of respiratory volumes by a single fiber-grating sensor of bending and provide the proof-of-principle by applying a calibration-test measurement procedure on a set of 18 healthy volunteers. Results establish a linear correlation between a change in lung volume and the corresponding change in a local thorax curvature. They also show good sensor accuracy in measurements of tidal and minute respiratory volumes for different types of breathing. The proposed technique does not rely on the air flow through an oronasal mask or the observation of chest movement by a clinician, which distinguishes it from the current clinical practice.
Vinča Institute of Nuclear Sciences,University of Belgrade, Mike Petrovića Alasa 12-14, 11000 Belgrade, Serbia.
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MD
Petrović
Vinča Institute of Nuclear Sciences,University of Belgrade, Mike Petrovića Alasa 12-14, 11000 Belgrade, Serbia.
J
J
Petrovic
Vinča Institute of Nuclear Sciences,University of Belgrade, Mike Petrovića Alasa 12-14, 11000 Belgrade, Serbia.
A
A
Daničić
School of Medicine, University of Belgrade, Dr Subotića 8, 11000 Belgrade, Serbia.
M
M
Vukčević
Vinča Institute of Nuclear Sciences,University of Belgrade, Mike Petrovića Alasa 12-14, 11000 Belgrade, Serbia.
B
B
Bojović
Vinča Institute of Nuclear Sciences,University of Belgrade, Mike Petrovića Alasa 12-14, 11000 Belgrade, Serbia.
Lj
Lj
Hadžievski
Aston Institute of Photonic Technologies, Aston Triangle, B4 7ET Birmingham, UK.
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T
Allsop
Moog Insensys LTD, Ocean House, Whittle Avenue, Segensworth West, Fareham, P015 5SX, UK.
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G
Lloyd
Aston Institute of Photonic Technologies, Aston Triangle, B4 7ET Birmingham, UK.
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DJ
Webb
(060.2370) Fiber optics sensors; (170.3890) Medical optics instrumentation; (170.4580) Optical diagnostics for medicine