Patent ID: 9220440
Filing Date: 2015-12-29
Classification: A61B

Abstract:
1. A method for determining a characteristic respiration rate of a patient by a pulse oximeter, the method comprising: receiving, using the pulse oximeter, a photoplethysmographic (PPG) signal derived from a pulse oximetry sensor, wherein the pulse oximetry sensor is configured to detect light attenuated by the patient; determining, using the pulse oximeter, respiration rate values of the patient over time based at least in part on the PPG signal; detecting, using the pulse oximeter, a first respiration rate event, wherein the first respiration rate event is detected based at least in part on a first deviation in the respiration rate values; determining, using the pulse oximeter, a first altered portion of the respiration rate values based on the first respiration rate event; determining, using the pulse oximeter, the characteristic respiration rate of the patient based at least in part on a selected portion of the respiration rate values, wherein: displaying, using an output of the pulse oximeter, the characteristic respiration rate.