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Optical Fibre Pressure Sensors in Medical Applications.

Poeggel S, Tosi D, Duraibabu D, Leen G, McGrath D, Lewis E - Sensors (Basel) (2015)

Bottom Line: This article is focused on reviewing the current state-of-the-art of optical fibre pressure sensors for medical applications.The small dimensions of optical fibre-based pressure sensors, together with being lightweight and flexible, mean that they are minimally invasive for many medical applications and, thus, particularly suited to in vivo measurement.This paper presents an overview of the recent developments in optical fibre-based pressure measurements with particular reference to these application areas.

View Article: PubMed Central - PubMed

Affiliation: Optical Fibre Sensors Research Centre, University of Limerick, Limerick, Ireland. Sven@Poeggel.eu.

ABSTRACT
This article is focused on reviewing the current state-of-the-art of optical fibre pressure sensors for medical applications. Optical fibres have inherent advantages due to their small size, immunity to electromagnetic interferences and their suitability for remote monitoring and multiplexing. The small dimensions of optical fibre-based pressure sensors, together with being lightweight and flexible, mean that they are minimally invasive for many medical applications and, thus, particularly suited to in vivo measurement. This means that the sensor can be placed directly inside a patient, e.g., for urodynamic and cardiovascular assessment. This paper presents an overview of the recent developments in optical fibre-based pressure measurements with particular reference to these application areas.

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Related in: MedlinePlus

(a) The full sensor system based on a broadband light source (BLS), an optical spectrum analyser (OSA) and an intrinsic or extrinsic sensor; (b) the signal can be modulated by a change in intensity, frequency or phase; (c) the sensor may measure in a single or multi-point and acquire single or multiple measurands.
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f3-sensors-15-17115: (a) The full sensor system based on a broadband light source (BLS), an optical spectrum analyser (OSA) and an intrinsic or extrinsic sensor; (b) the signal can be modulated by a change in intensity, frequency or phase; (c) the sensor may measure in a single or multi-point and acquire single or multiple measurands.

Mentions: The structure of an OFS (Figure 3a) can be divided into intrinsic (i.e., the sensing element is inside of the fibre) or extrinsic (i.e., the fibre is extended with an external sensing element). It also shows the set-up with broadband light source (BLS), which emits a continuous spectrum (1) to the sensing element. There, the signal is modulated (2) by the measurand and travels back though a 3-dB coupler to the optical spectrum analyser (OSA). The advantages of reflection mode (as shown in Figure 3a) as opposed to transmission are that the sensor may be used as a reflective probe and the tip of the sensor can be inserted into the patient.


Optical Fibre Pressure Sensors in Medical Applications.

Poeggel S, Tosi D, Duraibabu D, Leen G, McGrath D, Lewis E - Sensors (Basel) (2015)

(a) The full sensor system based on a broadband light source (BLS), an optical spectrum analyser (OSA) and an intrinsic or extrinsic sensor; (b) the signal can be modulated by a change in intensity, frequency or phase; (c) the sensor may measure in a single or multi-point and acquire single or multiple measurands.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4541926&req=5

f3-sensors-15-17115: (a) The full sensor system based on a broadband light source (BLS), an optical spectrum analyser (OSA) and an intrinsic or extrinsic sensor; (b) the signal can be modulated by a change in intensity, frequency or phase; (c) the sensor may measure in a single or multi-point and acquire single or multiple measurands.
Mentions: The structure of an OFS (Figure 3a) can be divided into intrinsic (i.e., the sensing element is inside of the fibre) or extrinsic (i.e., the fibre is extended with an external sensing element). It also shows the set-up with broadband light source (BLS), which emits a continuous spectrum (1) to the sensing element. There, the signal is modulated (2) by the measurand and travels back though a 3-dB coupler to the optical spectrum analyser (OSA). The advantages of reflection mode (as shown in Figure 3a) as opposed to transmission are that the sensor may be used as a reflective probe and the tip of the sensor can be inserted into the patient.

Bottom Line: This article is focused on reviewing the current state-of-the-art of optical fibre pressure sensors for medical applications.The small dimensions of optical fibre-based pressure sensors, together with being lightweight and flexible, mean that they are minimally invasive for many medical applications and, thus, particularly suited to in vivo measurement.This paper presents an overview of the recent developments in optical fibre-based pressure measurements with particular reference to these application areas.

View Article: PubMed Central - PubMed

Affiliation: Optical Fibre Sensors Research Centre, University of Limerick, Limerick, Ireland. Sven@Poeggel.eu.

ABSTRACT
This article is focused on reviewing the current state-of-the-art of optical fibre pressure sensors for medical applications. Optical fibres have inherent advantages due to their small size, immunity to electromagnetic interferences and their suitability for remote monitoring and multiplexing. The small dimensions of optical fibre-based pressure sensors, together with being lightweight and flexible, mean that they are minimally invasive for many medical applications and, thus, particularly suited to in vivo measurement. This means that the sensor can be placed directly inside a patient, e.g., for urodynamic and cardiovascular assessment. This paper presents an overview of the recent developments in optical fibre-based pressure measurements with particular reference to these application areas.

Show MeSH
Related in: MedlinePlus