Philips is touting a validation study of its contact-free peripheral artery oxygen saturation (SpO2) detection technology. Published in journal Anesthesia & Analgesia, the paper reviews a camera-based system that measures tiny changes in light reflecting from the skin. It’s accurate enough to notice a change in oxygenation of blood near the surface of the skin, but one concern has been the ability to calibrate such devices to provide clinical level accuracy.
Though the video below shows the system monitoring a sleeping child, the published study involved healthy adults. By creating a mathematical calibration curve, the study allowed the system to measure SpO2 of individual participants with an accuracy sufficient for clinical use.
Though this is certainly not the first news of contact-free oxygenation measurement, it is the first time that the technology has shown that it will soon be leaving the lab and coming to the clinic.
Flashbacks: Smartphone Camera Detects Breathing Rate, Pulse and Blood Oxygen Saturation…; MIT Student Uses Webcam to Measure Heart Rate From a Distance…
Study in Anesthesia & Analgesia: Calibration of Contactless Pulse Oximetry…
Source: Philips…
Via: Engadget…