Fiber-optic sensor for monitoring respiration and cardiac activity

Dziuda, Łukasz; Skibniewski, Franciszek; Różanowski, K.; Krej, Mariusz; Lewandowski, J.

doi:10.1109/icsens.2011.6127314

Cited by 8 publications

(10 citation statements)

References 4 publications

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“…[134][135][136][137] As shown in Fig. 20, an FBG attached inside the cushion records the strains in the form of instantaneous Bragg wavelength changes.…”

Section: Prototype Sensorsmentioning

confidence: 99%

“…In addition to the literature review, the author describes his group's work on embedded sensors. [134][135][136][137][138][139][140][142][143][144][145] 3.2 Results of Literature Review environment that allow the RR and/or HR to be obtained after processing the recorded signal. An RR-monitoring device that detected the evaporated humidity from the mouth and/or nose was one of the first sensors to be studied.…”

Section: Categorization Of Monitoring Principlesmentioning

confidence: 99%

“…In this manner, another cushion-based prototype sensor [137][138][139] and its simplified version using an elastic plate as the medium for transferring the strains to the measuring element 137,140 were constructed. Additionally, a special stethoscope with a built-in FBG, 123 12 FBGs (3 × 4 array), arc-shaped metal bridges; RR 10 subjects, no age data; supine position, no information on recording time, the sensor was tested for normal breathing (10 to 25 vpm); maximum error: AE1 vpm when compared with manual counting As above 2c.IV; 124 Single FBG, stethoscope structure; HR Sensor was attached on speaker membrane emulating heart sounds; heartbeat sound-induced Bragg wavelength shift amplitude: max 10 pm pk-pk , proof-of-concept demonstration only …”

Section: Prototype Sensorsmentioning

confidence: 99%

“…Forty-two fiber-optic sensors constructed by other groups 41, and five in-house-designed sensors [134][135][136][137][138][139][140][141][142][143][144][145] for monitoring vital signs can be easily classified into three major categories with several subcategories each, according to the location of the sensor application. In addition, we can distinguish seven sensor classes regarding the type of measurand as follows:…”

Section: Categorization Of Monitoring Principlesmentioning

confidence: 99%

“…5 On the other hand, special requirements are imposed on systems that must be able to operate in harsh environments without failing, such as high-temperature or high-humidity environments, which prevail in nonairconditioned cockpits, and environments with high electromagnetic (EM) interference caused by radio or on-board radar systems.…”

Section: Introductionmentioning

confidence: 99%

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Fiber-optic sensors for monitoring patient physiological parameters: a review of applicable technologies and relevance to use during magnetic resonance imaging procedures

Dziuda

2015

J. Biomed. Opt.

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Abstract. The issues involved with recording vital functions in the magnetic resonance imaging (MRI) environment using fiber-optic sensors are considered in this paper. Basic physiological parameters, such as respiration and heart rate, are fundamental for predicting the risk of anxiety, panic, and claustrophobic episodes in patients undergoing MRI examinations. Electronic transducers are generally hazardous to the patient and are prone to erroneous operation in heavily electromagnetically penetrated MRI environments; however, nonmetallic fiberoptic sensors are inherently immune to electromagnetic effects and will be crucial for acquiring the abovementioned physiological parameters. Forty-seven MRI-tested or potentially MRI-compatible sensors have appeared in the literature over the last 20 years. The author classifies these sensors into several categories and subcategories, depending on the sensing element placement, method of application, and measurand type. The author includes five in-house-designed fiber Bragg grating based sensors and shares experience in acquiring physiological measurements during MRI scans. This paper aims to systematize the knowledge of fiber-optic techniques for recording life functions and to indicate the current directions of development in this area.

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“…[134][135][136][137] As shown in Fig. 20, an FBG attached inside the cushion records the strains in the form of instantaneous Bragg wavelength changes.…”

Section: Prototype Sensorsmentioning

confidence: 99%