Dräger D-Vapor

Instructions for use D-Vapor/D-Vapor 3000 57
Operation
Checking the concentration
Prerequisite: The vaporizer is connected to the
anesthesia workstation and ready for use.
Preparation
1 Fill the vaporizer at least to the middle marking
on the sight glass.
2 Warm up the filled vaporizer and let it stand for
30 minutes in the "ready for operation" state.
3 Prepare the anesthetic agent monitor and
check it. If necessary, perform a zero calibration
with the required gas (Air or O
2).
4 Connect anesthetic agent monitor to vaporizer
outlet, fresh-gas outlet, or Y-piece. Make sure
that the connections are leak-tight.
5 Connect scavenging line and start operation.
Setting
1 Switch off the ventilator or set it so that the
ventilation pressure is less than 5 hPa
(5.1 cmH
2O).
2 Set the anesthesia agent monitor to desflurane
and to continuous measurement.
3 Set the monitor to Vol% if possible.
4 Set a flow of 2.5 ±0.5 L/min Air.
Measuring
1 Check the 0, 3, 8, 10 and greater than 14 Vol%
markings.
Check the 10 Vol% marking twice: Check the
marking from the direction of a lower
concentration and from the direction of a higher
concentration.
2 Set the control dial.
3 Let the vaporizer dose for 1 to 2 minutes.
4 Take reading of measured value once it has
stabilized.
Correcting measured values
Correcting the units used on the anesthetic
agent monitor
If the display on the monitor is
Determining the permissible range
Refer to accuracy data (see page 101) for
permissible range of concentration.
Determine the permissible deviation of the
anesthetic agent monitor.
The sum total of both sets of accuracy data is the
permissible range for the output concentration.
WARNING
Risk of patient injury
Incorrect concentrations of anesthetic agent
can harm the patient.
If no continuous monitoring is present, the
concentration must be checked weekly.
NOTE
After an extended interruption to operation or if the
tank has been emptied completely, there will be air
as well as desflurane in the tank. Premature read-
ing can result in incorrectly determined concentra-
tions that are too low.
in Vol%: No correction
in % partial pressure: Convert to Vol%:
Concentration
[Vol%]
=
Measured value [% partial pressure] x
1013 hPa
Atmospheric pressure [hPa]