Temperature fiber Bragg grating based sensor for respiration monitoring

Manujło, Andrzej; Osuch, Tomasz

doi:10.1117/12.2281106

Cited by 10 publications

(12 citation statements)

References 11 publications

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“…A competitive method for monitoring respiratory behavior for the chest and abdomen regions is based on Fiber Bragg Grating (FBG) sensors, which have been investigated for their advantages, such as high sensitivity, magnetic resonance compatibility, and the capability of performing distributed measurements [14,15]. Other breath monitoring solutions, still based on optical fiber, are also being considered [16,17].…”

Section: Introductionmentioning

confidence: 99%

Wearable Belt With Built-In Textile Electrodes for Cardio—Respiratory Monitoring

Piuzzi

Pisa

Pittella

et al. 2020

Sensors

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Unobtrusive and continuous monitoring of vital signs is becoming more and more important both for patient monitoring in the home environment and for sports activity tracking. Even though many gadgets and clinical systems exist, the need for simple, low-cost and easily applicable solutions still remains, especially in view of a more widespread use within everyone’s reach. The paper presents a fully wearable and wireless sensorized belt, suitable to simultaneously acquire respiratory and cardiac signals employing a single acquisition channel. The adopted method relies on a 50-kHz current injected in the subject thorax through a couple of textile electrodes and on envelope detection of the trans-thoracic voltage acquired from a couple of different embedded electrodes. The resulting signal contains both the baseband electrocardiogram (ECG) signal and the trans-thoracic impedance signal, which encodes respiratory acts. The two signals can be easily separated through suitable filtering and the cardio–respiratory rates extracted. The proposed solution yields performances comparable to those of a spirometer and a two-lead ECG. The whole system, with a realization cost below 100 €, a wireless interface, and several hours (or even days) of autonomy, is a suitable candidate for everyday use, especially if complemented by motion artifact removal techniques, currently under implementation.

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Section: Introductionmentioning

confidence: 99%

Wearable Belt With Built-In Textile Electrodes for Cardio—Respiratory Monitoring

Piuzzi

Pisa

Pittella

et al. 2020

Sensors

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“…Therefore, this fast response and recovery time of the fabricated sensor can achieve the human breath monitoring in real-time. Moreover, different from stain-or temperature-based breath monitoring techniques [40,41], the proposed scheme is noncontact monitoring and can detect the breath depth distinguished by the amplitude of the output waveforms.…”

Section: Experiments Results and Discussionmentioning

confidence: 99%

Graphene oxide-deposited tilted fiber grating for ultrafast humidity sensing and human breath monitoring

Jiang

Hao

et al. 2019

Sensors and Actuators B: Chemical

110

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Highlights 1. An optical fiber-based humidity sensor with ultrafast response is proposed by depositing GO onto a tilted fiber grating (TFG) with large tilted angle. 2. The experimental results show sensitivities of 18.5 pm/%RH and 0.02 dB/%RH with highly linear coefficient in the dynamic range of 30%-80%RH. 3. The sensor is successfully applied to monitor human breathing cycles with different breathing frequencies. 4. The sensor also shows the properties of easy fabrication, low hysteresis, ultrafast response, and high repeatability and reliability.

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“…As previously described, changes in airflow thermohygrometric conditions can also be exploited for RR monitoring. Few studies proposed devices with bare FBGs to estimate RR by detecting temperature changes between inhaled and exhaled airs [197], [198]. The most used solutions are based on the FBG functionalization for relative humidity sensing [199].…”

Section: ) Respiratory Ratementioning

confidence: 99%

Fiber Bragg Gratings for Medical Applications and Future Challenges: A Review

et al. 2020

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In the last decades, fiber Bragg gratings (FBGs) have become increasingly attractive to medical applications due to their unique properties such as small size, biocompatibility, immunity to electromagnetic interferences, high sensitivity and multiplexing capability. FBGs have been employed in the development of surgical tools, assistive devices, wearables, and biosensors, showing great potentialities for medical uses. This paper reviews the FBG-based measuring systems, their principle of work, and their applications in medicine and healthcare. Particular attention is given to sensing solutions for biomechanics, minimally invasive surgery, physiological monitoring, and medical biosensing. Strengths, weaknesses, open challenges, and future trends are also discussed to highlight how FBGs can meet the demands of nextgeneration medical devices and healthcare system. INDEX TERMS biomechanics, biosensing, fiber Bragg grating sensors, minimally invasive surgery, physiological monitoring.

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Temperature fiber Bragg grating based sensor for respiration monitoring

Cited by 10 publications

References 11 publications

Wearable Belt With Built-In Textile Electrodes for Cardio—Respiratory Monitoring

Wearable Belt With Built-In Textile Electrodes for Cardio—Respiratory Monitoring

Graphene oxide-deposited tilted fiber grating for ultrafast humidity sensing and human breath monitoring

Fiber Bragg Gratings for Medical Applications and Future Challenges: A Review

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