The document describes the features of the Nellcor SatSeconds feature, which distinguishes clinically insignificant events from events of consequence, providing a smarter way to manage alarms.
The Nellcor N395 pulse oximeter includes a SatSeconds feature designed to manage nuisance alarms caused by minor and brief desaturation events. This feature distinguishes clinically insignificant events from those of consequence by calculating the product of the magnitude of the desaturation and the duration it persists below the alarm limit.
No alarm is triggered because the event equals 6 SatSeconds, which is below the limit.
An alarm sounds in 2 seconds if the desaturation reaches 10 SatSeconds.