The exhalation system is heated to prevent moist exhaled gas
from condensing in the exhalation pathway. A bacteria filter should
be used at the “FROM PATIENT” port to prevent contaminants in
the exhaled gas from entering the exhalation system and
contaminating the exhalation valve and flow sensor. Another filter
should be placed at the “TO PATIENT” port to prevent
contamination of the inspiratory manifold when the emergency
relief valve opens (in the case of a Device Alert alarm, Both Air/O
2
Supply Loss alarm or Sustained High Baseline Pressure alarm
that is accompanied by a blockage of the exhalation valve).
The heated exhalation system features an active exhalation valve
with a low exhaled flow resistance for rapid return of circuit
pressure to baseline and decreased potential for auto-PEEP.
Breath Types
The e360 ventilator offers these breath types:
• Volume Control
• Pressure Control
• Volume Target Pressure Control*
Volume Control
Each Volume Control mandatory breath is delivered primarily
according to the user-selected
Tidal Volume and
Flow/Inspiratory Time setting and is secondarily af
fected by
Respiratory Rate, PEEP/CP
AP
, Pause, Sigh, and Flow Wave
pattern settings.
A square flow wave pattern delivers the set
flow constantly until the set tidal volume is delivered. A
descending ramp flow wave pattern delivers the set flow
initially and then decreases at a constant rate until 50% of the
initial flow is reached and then terminates when the set Tidal
V
olume has been delivered.
Pressure Control
Each Pressure Control mandatory breath is delivered primarily
according to the user-selected Pressure Limit and Inspiratory
Time settings and is secondarily affected by Respiratory Rate,
PEEP/CPAP and Slope/Rise settings. A Pressure Control
inspiration terminates when the set Inspiratory Time has
elapsed.
* Available on specific models
THEORY OF OPERATION
A-2 SER360 A1106
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