Pc-Hfo - Dräger Babylog VN500 Instructions For Use Manual

PC-HFO

Pressure Control-High Frequency Oscillation
Continuous pressure-controlled ventilation with
high-frequency oscillations at the mean pressure
level
Ventilation with high-frequency pressure oscilla-
tions enables gas to be exchanged in the lungs de-
spite very small tidal volumes (often in the dead
space volume range). While pressure amplitudes
may be considerable in the breathing circuit, only
small fluctuations occur around the mean pressure
in the lungs. The mechanical load due to periodic
expansion and relaxation of the lungs is low.
The mean pressure, around which the oscillations
occur, is determined by MAPhf. The pressure am-
plitude is set directly using the Ampl hf therapy
control. Here, Ampl hf is the difference between
the maximum and minimum pressure of the oscilla-
tion. The rate at which oscillations occur per sec-
ond is set with fhf. Depending on the oscillation fre-
quency fhf, there are up to three different I:E ratios
to choose from:
I:Ehf Oscillation frequency
1:1 5 to 20 Hz
1:2 5 to 15 Hz
1:3 5 to 10 Hz
Instructions for Use Infinity Acute Care System – Babylog VN500 SW 2.n
Paw
Flow
Description
MAPhf
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