An Invasive Controlled Desaturation Study to Determine the Accuracy of the CART-I Pulse Oximeter (Sky Labs Inc., Korea) in Healthy Adult Volunteers

A pulse oximeter is used for continuous monitoring of peripheral oxygen saturation (SpO2) and plays an important role in the early detection of hypoxia, guiding the titration of supplemental oxygen, and reducing the need for blood gas analysis. Therefore, the SpO2 accuracy of a pulse oximeter should be validated for patient safety. The objective of this study is to evaluate whether the CART-I pulse oximeter with a ring-type wearable PPG sensor (Sky Labs Inc., Seoul, Korea) provides clinically reliable SpO2 readings over the range of 70-100% SaO2, during steady-state, non-motion conditions.