Health devices
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Comparative Study
Next-generation pulse oximetry. Focusing on Masimo's signal extraction technology.
Pulse oximeters are used to determine trends in patients' blood oxygen saturation and to warn of dangerous saturation levels. But conventional pulse oximetry has some inherent limitations. For example, it has difficulty monitoring patients who are moving or who have poor perfusion; it is also subject to interference from certain visible and infrared light sources. ⋯ The first of these "next-generation" pulse-oximeter technologies that reached the market was Masimo Corporation's Signal Extraction Technology (SET). We tested that product in this Evaluation. In this Overview, we'll tell you about conventional pulse oximetry and its shortfalls, next-generation technology and how it's designed to improve on the old methods, and how we approached our Evaluation of Masimo SET.