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2.3 PTV
Patient Triggered Ventilation
In this mode all the patient's breath attempts are pressure supported. Mechanical breaths
are delivered at the set parameters (Ti, PEEP and PIP) if no patient effort is recognised. This
mode can be used with or without a flow sensor.
The User sets the following:-
• Positive End Expired Pressure (PEEP)
• Peak Inspiratory Pressure (PIP)
• Inspiratory Time (Ti)
• Backup breath rate (Backup)
• Apnoea Time (Only if backup breath rate is 19 breaths per minute or lower)
•Fi0
2
• Flow breath detection threshold (Set trigger) - The patient effort required to satisfy
the apnoea alarm.
• High and low pressure alarm thresholds
• Tidal volume, high and low alarm thresholds
• Minute volume, high and low alarm thresholds
PTV Flow and Tidal volume waveforms.
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