DESCRIPTION

The N-45 portable pulse oximeter determines oxygen saturation levels (%SpO2) and the pulse rate (PR in beats/min) by performing continuous, non-invasive measurements of functional oxygen saturation of arterial hemoglobin during motion and no motion conditions, and for patients who are well or poorly perfused. The N-45 is intended for monitoring adult, pediatric, and neonatal patients in clinical environments.        The N-45 pulse oximeter is designed to use Nellcor OxiMAX brand sensors, which integrate the OxiMAX technology. All OxiMAX sensors contain memory chip carrying information about the sensor which the oximeter needs for correct operation. The N-45 acquires signals from an SpO2 sensor typically attached to the patient's finger, toe, ear, forehead, hand, or foot. SpO2 and pulse rate readings are displayed on an LCD screen. Alarm limit violations, snesor malfunctioning, low-battery conditions, and other technical faults are indicated by flashing screen icons and audible alarms. The oximeter automatically stores 24 hours of SpO2 and pulse rate trend data at a data sampling rate of ever 4 seconds. Trend data can only be viewed by exporting it to a PC.        The N-45 operates continuously for a minimum of 14 hours with a 9V alkaline battery, or for a minimum of 30 hours with a 9V lithium battery. Alternatively, the oximeter can be connected to an approved AC power adapter.