PVO Monitoring stands for pressure, volume and oxygen monitoring.

Breathing Pressure Monitoring

Breathing pressure is measured using piezotransducer.The pressure transducer output is converted into meaningful readings for airway pressure displayed on the screen.

In addition to the electronically displayed measurement, a mechanical pressure gauge can be connected optionally to the breathing system.

Respiratory Volume Monitoring

Respiratory volume is measured using thermal anemometry. The flow sensor output is converted into meaningful readings for minute volume, tidal volume, and respiratory rate displays.

Two types of flow sensors are available:

1) Spirolife: Autoclavable flow sensor.

2) Spirolog: Non-autoclavable flow sensor.

Oxygen Monitoring

Inspiratory oxygen concentration is measured with a dual galvanic cell sensor, which is attached to the inspiratory valve dome. The sensor contains two independent electrochemical cells, or sensor halves. When the sensor is exposed to oxygen, an electrochemical reaction occurs within each cell.

The oxygen monitor measures the current produced in each cell, computes an average for the two cells, and translates the average into an oxygen concentration measurement.