Masimo announced the CE marking of the measurement of respiration rate from the pleth (RRp™) on the MightySat™ Rx fingertip pulse oximeter. MightySat Rx is a noninvasive device that measures and displays functional oxygen saturation (SpO2), Pulse Rate (PR) and Perfusion Index (PI) with the option to add Pleth Variability Index (PVi®) and now, RRp.
Respiration rate, or the number of breaths taken per minute, typically requires manually counting breaths with a timer and then converting to a per minute rate, or being fitted with chest leads or straps that can be inconvenient. With the addition of RRp to MightySat Rx, respiration rate can conveniently be measured using the same fingertip sensor that measures SpO2, PR, PI, and PVi (a measurement of the dynamic changes in PI that occur during the respiratory cycle). RRp is measured only when the respiratory movement-induced signal is present in the pulsatile waveform and may not be available during certain conditions, such as very irregular breathing and excessive movement.