Invited: Investigation of Motion Artifacts for Luminescence-Based Transcutaneous Oxygen Wearable Device

Respiratory diseases are among the top causes of mortality globally, and their effective control frequently relies on accurate monitoring of oxygen levels. The home quarantines during the COVID-19 pandemic have underscored the need for miniaturized respiratory monitoring technologies, especially in remote patient care settings. This paper presents a study on quantifying motion artifacts in a novel, wearable, noninvasive sensor. This sensor is designed to monitor transcutaneous oxygen, a marker correlated with the partial pressure of oxygen in arteries and indicative of pulmonary disease progression. It utilizes a luminescent film whose emission properties inversely correlate with oxygen levels. This study was conducted to assess the impact of motion artifacts on the sensor's accuracy, evaluating its performance under various motion conditions through three tests: dual motion, single motion, and extended motion, involving a flexible prototype with an integrated sensor and accelerometer. The test data, with no post-signal processing, demonstrated min-imal impact on accuracy, with discrepancies not exceeding 0.8%. These findings highlight the wearable oxygen sensor's potential for reliable monitoring in dynamic environments, although future research could focus on solutions to further eliminate the minimal influence of motion artifacts identified in this study.