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3 Hardware options
The operator sets the cuff pressure relative to the averaged air-
way pressure (Ppeak). This difference between Ppeak and Pcuff
is kept constant (Rel. Pressure difference) to provide a tight
sealing of the cuff. The applied cuff pressure will vary between
the operator-set adjustable minimum and maximum pressure
limits, avoiding excessive pressure which can harm the trachea
or too low pressure risking aspirations and airway leaks.
Figure 3-27. Concept of automatically set Pcuff based on
patient’s airway pressure
During PV Tool and automatic recruitment maneuvers in order
to avoid airway leaks the cuff pressure is set automatically
equal to Ptop + 5 mbar in case of PV Tool and to 45 mbar in
case of automatic recruitment applied by INTELLiVENT
®
.
3.5.6.4 Full deflation of the cuff
WARNING
Verify after successful intubation that the cuff is
properly inflated and the automatic cuff pressure
controller is switched ON.
To support intubation and extubation the operator can fully
deflate the cuff by activating
Deflate
. In this mode of opera-
tion a negative pressure is temporarily applied to allow full
deflation of the cuff during intubation and extubation. After
pressing Deflate a window asking the user to confirm the
deflation is popping up. In this way avoiding a deflation and
loss of pressure by accidental pressing of
Deflate
.
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