20
Knob Functions
DEMAND CPAP/PEEP
INSP TIME
INSP FLOW
FREQUENCY
MASTER
Chapter 5: Controller Functions
Knob, Switch and Button
Demand Continuous Positive Airway Pressure
(Demand-CPAP) for reducing the work of breathing
• Lifts the baseline in a static way
• Aects peak and mean airway pressure
• Used to reduce work of breathing (WOB),
stabilize upper airways
The Inspiratory Time control knob arrow when
rotated (counterclockwise) to
the 12:00 default position increases the
Inspiratory Time while simultaneously
decreasing the Expiratory Time.
• Sub-tidal inspiratory/expiratory ratio
• Ranges from 1:1 to 1:3
• Aects mean airway pressure
The Inspiratory Flow control knob determines
the amplitude delivered to the patient during
inspiratory time.
• Set according to patient’s need or tolerance.
• Chest wiggle
The Frequency knob controls the rate of high
frequency volumes delivered.
• Ranges from 60 to 330 cycles per
minute
• Aects peak and mean airway pressure
The Master Switch turns the IPV®-2C controller
ON and OFF.
The patient receives TRUE-IPV® treatment when
the Master Switch is in the ON position.
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