Key result
A prototype reflection pulse oximeter embedded in a mobile device achieved comparable performance to a clinical oximeter for SpO2 (p=0.182) and heart rate (p=0.496) measurements.
Why the study?
Does a prototype reflection pulse oximeter embedded in a mobile device provide comparable SpO2 and HR measurements to a clinical oximeter?
Does a prototype reflection pulse oximeter embedded in a mobile device provide comparable SpO2 and HR measurements to a clinical oximeter?
p-value: p=0.182 for SpO2 and 0.496 for HR
A novel mobile-embedded reflection pulse oximeter prototype provides SpO2 and HR measurements comparable to standard clinical oximeters, facilitating mobile healthcare.
May enable convenient mobile SpO2 monitoring; leaves open clinical validation before practice adoption.
This paper introduces a pulse oximeter prototype designed for mobile healthcare. In this prototype, a reflection pulse oximeter is embedded into the back cover of a smart handheld device to offer the convenient measurement of both heart rate (HR) and SpO2 (estimation of arterial oxygen saturation) for home or mobile applications. Novel and miniaturized circuit modules including a chopper network and a filtering amplifier were designed to overcome the influence of ambient light and interferences that are caused by embedding the sensor into a flat cover. A method based on adaptive trough detection for improved HR and SpO2 estimation is proposed with appropriate simplification for its implementation on mobile devices. A fast and effective photoplethysmogram validation scheme is also proposed. Clinical experiments have been carried out to calibrate and test our oximeter. Our prototype oximeter can achieve comparable performance to a clinical oximeter with no significant difference revealed by paired t -tests ( p = 0.182 for SpO2 measurement and p = 0.496 for HR measurement). The design of this pulse oximeter will facilitate fast and convenient measurement of SpO2 for mobile healthcare.
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Lu et al. (2015) studied this question. Reflection pulse oximeter prototype vs. Clinical oximeter was evaluated on SpO2 and heart rate measurement (p=0.182 for SpO2 and 0.496 for HR). A prototype reflection pulse oximeter embedded in a mobile device achieved comparable performance to a clinical oximeter for SpO2 (p=0.182) and heart rate (p=0.496) measurements.