Chapter 4
4-8 Respironics V60 Ventilator User Manual 1047358 Rev N
Principles of operation
CPAP mode
In the CPAP (continuous positive airway pressure) mode, the ventilator
functions as a demand flow system, with the patient triggering all breaths and
determining their timing, pressure, and size. You set no triggering or cycling
sensitivities: the patient triggers and cycles based on the ventilator’s Auto-Trak
Sensitivity algorithms. The control settings active in the CPAP mode are shown
in Figure 4-6. Figure 4-7 shows CPAP mode waveforms.
The optional C-Flex setting enhances traditional CPAP by reducing the
pressure at the beginning of exhalation – a time when patients may be
uncomfortable with CPAP – and returning it to the set CPAP level before the
end of exhalation.
Figure 4-6: CPAP controls
Figure 4-7: CPAP waveforms
Volume Flow
Pressure
CPAP
I E
Time
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