居家連續血氧監測與即時警報系統

Continuous Oxygen Saturation Monitoring and Real-Time Alert System for Homecare

蕭丞恩(Cheng-En Xiao)

指導教授 ： 蔡正倫

中原大學/工學院/生物醫學工程研究所/碩士(2022年)

https://doi.org/10.6840/cycu202200041

摘要

肺臟、心臟及血管的病變可能導致體內的器官或組織處於低血氧狀態，並產生各種生理與心理的疾病障礙。若能將治療低血氧症的氧氣治療應用於居家照護中，將可以改善患者的生活品質並降低死亡率。但一般家庭並不具備如醫療機構中的血氧監測及警報設備，使照護者難以在患者發生缺氧狀態時能及時發現並介入處理。
此研究的目的是製作一個適用於居家照護，而能夠連續監測病患的量測系統。感測器位在氧氣治療的輸氧導管上，以光及氣壓訊號進行生理狀況監測，訊號經運算處理後得到心率、血氧飽和濃度以及呼吸率數值。脈搏血氧飽和度是評估低血氧症的重要指標，在鼻中膈所測量的血氧飽和訊號可以比在手指尖的測量提早約20秒反應出血氧濃度的變化，當發生突發性缺氧時可以幫照護者爭取到寶貴的時間。藉由手機應用程式連續接收患者的生理參數，並在訊號異常時自動發出警報提示。照護者無需隨時守護在病患床邊，只需在異常訊號發生時，就近察看患者狀況。
居家連續監測與警報系統可以快速地提醒照護者進行處置，不僅減輕照護者的負擔，也可避免直接將誤警報通報緊急醫療網所增加的困擾。

關鍵字

連續監測 ； 即時警報 ； 血氧飽和濃度 ； 手機應用程式

並列摘要

Illness of the lungs, heart, and blood vessels that may cause hypoxia in organs or tissues will result in various physical and psychological diseases. If oxygen therapy for the treatment of hypoxemia can be used in home care, it will improve the quality of life of patients and reduce mortality. However, general home care medical devices are not as sophisticate as those in hospital which have continuous monitoring and alarm function. This makes it difficult for caregivers to know the patient's hypoxic state and intervene in time.
The purpose of this research is to build a monitoring system that is suitable for home care and can continuously monitor a patient’s condition. The sensor on an oxygen nasal cannula using light and air pressure to detect physiological signals, and the signals are processed to obtain the heart rate, blood oxygen saturation concentration and respiratory rate.
Oxygen saturation is an important indicator for evaluating hypoxemia. The oxygen saturation signal measured at nasal diaphragm can reflect the changes in oxygen concentration about 20 seconds earlier than the measurement on the fingertips. This can gain valuable time for caregivers when sudden hypoxia occurs. A mobile phone continuously receives the patient's physiological parameters and automatically alarm when the signal is abnormal, so that caregivers do not need to stay by the patient all the time. When an abnormal signal occurs, the App will immediately remind the caregiver to check up the patient's condition.
The continuous monitoring and alarm system automatically remind caregivers to take a look and decide whether to call ambulance or not. It not only reduces the burden of caregivers, but also avoids false alarms directly sent to the emergency medical system.

並列關鍵字

Continuous monitoring ； real-time alert ； oxygen saturation ； respiratory rate ； mobile phone app

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