Description
5
EN
1.2 Function
SOMNO
smart
2 works on the principle of an
electrically powered flow generator, and delivers an
electronically controlled constant pressure level.
• A radial fan draws in ambient air through a filter
and delivers it to the outlet port. From here the air
flows through the hose system and the mask to the
patient.
• An oscillation generator creates a slight pneumatic
sinusoidal oscillation in the air flow produced by
the device.
• The airway and oscillation pressure is registered
via the pressure measurement tube in the mask
• The current oscillation pressure reading is com-
pared with an average value and the preceding
values. This evaluation of the oscillation pressure
makes it possible to identify any significant
change in airway resistance and hence to in-
crease or reduce the therapy pressure via the flow
generator.
• The pressure present in the mask is shown in the
LC display. The microprocessor-controlled flow
generator regulates the pressure at the value
determined.
• The device also records a respiratory flow signal
that can be output to a PSG system or read off with
the aid of WEINMANN
support
. This makes it
possible to identify apnoea, hypopnoea and
respiratory flow limitations.
• The expiration system before the mask prevents ac-
cumulation of CO
2
-enriched expired air in the tube
system.
