2/26/2018
DOCA3667B Pro Series Operating Manual.doc
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•
Install appropriate bellows assembly. Use the 0-300 ml bellows, bellows adapter, and
bellows housing for tidal volume requirements below 300 ml.
•
Connect a test lung to the patient wye and close the pop-off of the anesthesia machine.
•
Fill the breathing system with the O
2
flush until the bellows reaches the top of the bellows
housing.
•
Turn the VOLUME controls fully clockwise to the minimum setting, set the rate as desired
and turn the ventilator on.
VERIFICATION OF PROPER FUNCTION (Continued)
•
Increase the VOLUME controls until the peak pressure of each breath is approximately 30
cm H
2
O.
•
Depress the INSPiratory HOLD button long enough to verify that the breathing system is not
leaking. The pressure should remain constant.
•
Release the INSPiratory HOLD button. Observe that the ventilator is continuing to cycle, and
that over time, ~ten cycles, and the bellows is not falling significantly.
•
Turn the VOLUME controls fully clockwise to the minimum setting and turn the ventilator
off.
Note that this verification procedure is printed on each instruction plate on the ventilator sides.
STOP HERE.
IF THE VENTILATOR IS NOT PERFORMING IN ACCORDANCE WITH THESE EXPECTED
OBSERVATIONS, DO NOT USE THE VENTILATOR. REFER TO THE
"TROUBLESHOOTING" SECTION.
Note that in the above procedure no fresh gas flow was used. During actual operation of the
system, the anesthesia machine will be set to deliver enough fresh gas to compensate for minor
leaks in the entire breathing system and variations in patient uptake. This fresh gas will keep
bellows full between each Inspiratory cycle.
