Noninvasive Sensor Displays Fractional Arterial Oxygen Saturation

An innovative noninvasive sensor utilizes more than seven wavelengths of light and breakthrough signal processing to monitor multiple oxygen saturation parameters simultaneously.

The Masimo rainbow Pulse CO-Oximeter SuperSensor is the first to measure fractional arterial oxygen saturation (SpfO2), which allows more precise arterial oxygenation assessment in patients with elevated dyshemoglobins--common throughout the hospital and prehospital setting--when compared to functional oxygen saturation (SpO2). For example, in a patient who is a smoker with a SpO2 of 98%, carboxyhemoglobin level of 12%, and methemoglobin of 1%, the SpfO2 measurement would be displayed at 85%, which could indicate different diagnostic and therapeutic decisions than an oxygenation level of 98%.


Besides SpfO2, the rainbow SuperSensor also measures continuous total hemoglobin (SpHb), true arterial oxygen content (SpOC), Methemoglobin (SpMet), oxygen saturation (SpO2), Perfusion Index (PI), Carboxyhemoglobin (SpCO), Pleth Variability Index (PVI), measure-through motion and low perfusion SpO2, and pulse rate. The Masimo rainbow Pulse CO-Oximeter SuperSensor is a product of Masimo (Irvine, CA, USA), and is available with both a disposable optical sensor and reusable optical sensor configuration.

“The new fractional arterial oxygenation measurement adds to the unprecedented noninvasive monitoring innovations Masimo has brought to clinicians, providing greater insight into the true state of their patients,” said Joe Kiani, founder and CEO of Masimo. “SpfO2 will also be used with the noninvasive and continuous hemoglobin measurement, to assess the patient's true arterial oxygen content, and should lead to better decisions about common therapies such as administering oxygen or red blood cell transfusions.”

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