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Publication 5404-001-REV-C
Operation: Getting Started
Safe Range
™
Respiratory Profiles
Setting up the ASV ventilator is both easy and safe thanks to the Safe Range
™
software.
Once the animal’s body weight has been entered the software computes the median
settings for tidal volume and respiratory rate. These same equations are used to cal-
culate a Safe Range
™
around the median values. Inspira uses the entered weight to
calculate the correct tidal volume and respiratory rate for the animal. The tidal vol-
ume (in liters) is determined by the equation
0.0062 x Mb
1.01
where Mb is the animal
mass in kilograms.
The respiratory rate (in min
-1
) is determined by the equation
53.5 x Mb
-0.26
. The Safe
Range
™
is established by computing a range of acceptable values, which are less than
or equal to ±10% of the calculated tidal volume and respiratory rate. All the default
parameter settings can be overridden. If you enter a setting outside of the Safe Range
™
for the body mass of the animal to be ventilated you are warned that the value is out-
side the Safe Range™ and asked to confirm the setting.
SAFE RANGE – Pressure-Control Mode
Inspiration Pressure Range
Safe Range: 15 to 25 cmH2O
Full Range: 5 to 50 cmH2O
Sigh Pressure Range
Safe Range: Insp. Pressure to (Insp. Pr 10cmH2O) or 35cmH2O,
whichever is less
Full Range: Insp. Pressure to 50cmH2O
