Wearable SpO2 and sleep posture monitoring system for Obstructive Sleep Apnea patients

Brugarolas, Rita; Valero-Sarmiento, Jose Manuel; Brna, Andrew

doi:10.1109/vcacs.2015.7439613

Cited by 8 publications

(7 citation statements)

References 7 publications

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“…Concerning medical aspects, a complete system to avoid the hospital acquired infection is proposed in [4], using sensors and wristbands equipped with accelerometers. In a similar way, other smart bands are proposed for muscular movement recognition and physiological signals [5], for Parkinson's disease detection [6] and for helping patients with obstructive sleep apnea [7]. Additionally, accelerometer-based devices are widely used for rehabilitation applications [8].…”

Section: Related Workmentioning

confidence: 99%

OperaBLE: An IoT-Based Wearable to Improve Efficiency and Smart Worker Care Services in Industry 4.0

Roda-Sánchez¹,

Garrido-Hidalgo²,

Hortelano³

et al. 2018

Journal of Sensors

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Industry 4.0 is leading the Fourth Industrial Revolution transforming traditional factories into smart factories governed by the Internet of Things (IoT). In order to assist smart factory employees, this paper introduces OperaBLE, a Bluetooth Low Energy (BLE) wearable proposal which is aimed at enhancing working conditions and efficiency in Industry 4.0 scenarios. We have developed two innovative algorithms for OperaBLE focused on power awareness as the key-enabling attribute towards success: Low-Frequency Movement Characterisation Algorithm (LoMoCA) and Adaptive Heart Rate Algorithm (AHRA). Novel experiments have been carried out using OperaBLE to determine its operability, reliability, and lifespan. Results obtained during experimentation demonstrate how OperaBLE empowers human-machine collaboration embedding workers in closed-loop performance and ensuring nonharmful working conditions by means of power-aware algorithms. OperaBLE is due to bring digitalisation into smart factories, playing an essential role in the emerging wearable revolution to arise in the following years towards smart production systems.

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Section: Related Workmentioning

confidence: 99%

OperaBLE: An IoT-Based Wearable to Improve Efficiency and Smart Worker Care Services in Industry 4.0

Roda-Sánchez¹,

Garrido-Hidalgo²,

Hortelano³

et al. 2018

Journal of Sensors

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“…The photodiode sensor combined with a vibrating motor was successfully applied to stimulate the baby's body when apnea occurs, as well as to raise an alarm at the nurse station [2]. The usefulness of such a system to alert patients with obstructive sleep apnea was also described by Brugarolas et al [7].…”

Section: Introductionmentioning

confidence: 99%

“…Over the last decade, there has been considerable increase in interest and research activity in wearable sensors to measure blood oxygen saturation (SpO2) [1][2][3][4][5][6][7][8][9]. The principle of pulse oximetry is typically applied, which assesses the level of blood oxygenation by optical light transmission through the blood (for a review of oximetry techniques and their theory, see Nitzan et al [9]).…”

Section: Introductionmentioning

confidence: 99%

Home Monitoring of Oxygen Saturation using a Low-cost Wearable Device with Haptic Feedback to Improve Sleep Quality in a Lung Cancer Patient: A Case Report

Lachenmeier¹,

Lachenmeier²

2021

Preprint

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The study reports about a case of a lung cancer patient with increasing difficulties in falling asleep and frequent periods of wakefulness. Severe dyspnea related to pneumonitis caused as a side effect of immunotherapy worsened the situation. Eventually, fear of falling asleep developed, including panic attacks and anxiety of choking, which was shown to lead to nights of complete wakefulness. The patient did not only sleep poorly; he did not sleep at all at night for several days, as evidenced by the notes he made during the night. Polygraphy showed no evidence of sleep-disordered breathing, but frequent periods of wakefulness and reduced basal saturation around 90% during sleep due to lung changes such as extensive functional failure of the left upper lobe with position-dependent shunts. The authors hypothesized that the symptoms described were causally related to a drop in oxygen saturation in the patient's blood. Therefore, they pursued the goal of finding a measurement technique that is as inexpensive as possible and that the patient can operate without outside assistance and great effort. So the patient started using a low-cost wearable device that allows simultaneous measurements of blood oxygen content, pulse rate and movement intensity. It consists of a finger ring with pulse oximetry sensor and a wristband with the control unit containing a vibration motor. The described device reliably warned of disturbances in oxygen concentration in the blood during the night with its vibration alarm. By use of that device during the whole night at home, the events of reduced oxygen saturation and the anxiety symptoms were reduced. Sleep disturbances with sudden awakenings did not occur when using the device. The patient benefited from the security gained in this way and slept much more peacefully, and he could spend nights without waking up again. In conclusion, wearable oximeters with vibration alarm can be recommended for patients’ home care in lung cancer patients.

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“…Very low levels of SPO₂ can lead to severe complications. These complications include apnea, cardio vascular diseases (1). SPO₂ measurement is needed for people with breathing difficulty and heart problems to monitor their oxygen saturation levels and in addition to that heart rate and blood pressure can help to monitor the body fitness level and it can even help to identify developing health problems.…”

Section: Introductionmentioning

confidence: 99%

SMART Phone Based Detection of SPO₂, Heart RATE and Blood Pressure

S¹,

Mathumetha²,

Sharmila³

et al. 2022

ECS Trans.

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Increased doubts about health during the pandemic situation creates the need for affordable and accurate wearables to measure vital signs especially temperature, heart rate, respiratory rate, oxygen saturation (SpO2), BP. With the advancements of technology in recent times the vital signs such as SpO2, BP, etc. can be found using a smartphone or a wearable connected to a smartphone/server through Bluetooth. In the proposed method, video of index finger taken by a smart phone under a light source reveals information regarding the vital signs SpO2, BP, heart rate when processed and it eliminates the need of manufacturing a new wearable. The results are compared with standard pulse oximeters for spo2 and the mean standard error is found between 0.5 and 4.5, with manual methods, for heart rate the results are found to be with minimal errors, with cuff-based device, for BP measurements the constants found are in inverse relation.

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Wearable SpO2 and sleep posture monitoring system for Obstructive Sleep Apnea patients

Cited by 8 publications

References 7 publications

OperaBLE: An IoT-Based Wearable to Improve Efficiency and Smart Worker Care Services in Industry 4.0

OperaBLE: An IoT-Based Wearable to Improve Efficiency and Smart Worker Care Services in Industry 4.0

Home Monitoring of Oxygen Saturation using a Low-cost Wearable Device with Haptic Feedback to Improve Sleep Quality in a Lung Cancer Patient: A Case Report

SMART Phone Based Detection of SPO₂, Heart RATE and Blood Pressure

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Wearable SpO2 and sleep posture monitoring system for Obstructive Sleep Apnea patients

Cited by 8 publications

References 7 publications

OperaBLE: An IoT-Based Wearable to Improve Efficiency and Smart Worker Care Services in Industry 4.0

OperaBLE: An IoT-Based Wearable to Improve Efficiency and Smart Worker Care Services in Industry 4.0

Home Monitoring of Oxygen Saturation using a Low-cost Wearable Device with Haptic Feedback to Improve Sleep Quality in a Lung Cancer Patient: A Case Report

SMART Phone Based Detection of SPO2, Heart RATE and Blood Pressure

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SMART Phone Based Detection of SPO₂, Heart RATE and Blood Pressure