Delivering breakthrough innovation in noninvasive patient monitoring

Masimo leads the industry in pulse oximetry, a noninvasive method of assessing a patient's blood oxygen saturation, with growing positions in other advanced monitoring applications. 

From our earliest breakthroughs in the NICU to today’s global portfolio of noninvasive monitoring technologies and automation solutions, every Masimo innovation starts with a simple purpose: improving patient safety, outcomes, and experience. 

In 1996, Masimo introduced Signal Extraction Technology® (SET®), the world’s first Measure-through Motion and Low Perfusion™ pulse oximetry. This breakthrough transformed pulse oximetry into a reliable, trusted indicator of patient status. What began with SET® has grown into a broad suite of advanced technologies—including Pulse CO-Oximetry, SedLine®, O3®, LiDCO®, and NomoLine®—each designed to give clinicians a clearer, more complete picture of patient status. 

From oxygenation and ventilation to hemodynamics and brain function, these innovations reflect our belief that when clinicians can see more, they can act with greater confidence.