EvitaXL

Setting special functions
ATC
ATC*
Automatic Tube Compensation**
Automatic compensation of the tube
resistance
Supplementary function allowing the
ventilation pressure in the hose system
to be increased during inspiration and
decreased during expiration. The airway
pressure is adjusted to the tracheal level
if 100 % compensation of the tube
resistance has been selected.
Automatic tube compensation is active
in:
— spontaneous breathing phases
— pressure-supported breathing
phases
— pressure-controlled mechanical ventilation
phases
— volume-controlled mechanical ventilation
phases with activated supplementary
"AutoFlow".
Expiratory tube compensation can be
deactivated.
In volume-controlled ventilation modes
with constant inspiratory flow (IPPV,
IPPVAssist, SIMV, MMV), automatic tube
compensation is only active during
mechanical expiration and the spontaneous
breathing phases.
Setting parameters for ATC:
Tube mode »ET« (endotracheal tube) or
»Trach.« (tracheotomy tube)
Inside diameter of the tube »ID Ø« in mm
Degree of tube compensation »Comp.«
in %
Tube compensation »On«/»Off«
* An Evita 4 or Evita 2 dura unit which has
been upgraded with the EvitaXL option
can also be operated without ATC option.
** For a detailed description, please refer to
page 221.
Example: SIMV
Tube comp.
deactivated
PAW
Pinsp
PEEP
Flow
Tube comp.
activated
inactive active
72 Instructions for Use EvitaXL
Mand.
insp.
Mand.
exp.
Example: BIPAP
Tube comp.
deactivated
PAW
Pinsp
PEEP
Flow
Mand.
insp.
Spontaneous
breathing
Spontaneous
breathing
Mand.
exp.
Spontan.
breathing
Mand.
insp.
Mand.
insp.
Mand.
exp.
Tube comp.
activated
active
Spontan.
breathing
Mand.
exp.
Spontaneous
breathing
Spontaneous
breathing
t
t
t
t
015