Emergency Procedures; Perfusion Situations - Terumo Advanced Perfusion System 1 Operator's Manual

Emergency Procedures

The situations in this section will help you use this system proficiently should an
actual emergency occur. Practice operating the system during a wet run, simulate
the emergency condition, and follow the suggested operator responses.

Perfusion Situations

Conditions such as Air Detected, Low Blood Level, High Pressure,
Backflow, and Minimum Flow
Provided you have configured your System 1 to include air, level, pressure, flow and/
or centrifugal control units, and they have been enabled, the first indication of an
emergency situation should be the flashing of a message and icon and the sounding
of the audio tone.
• Check the message area and the flashing icon on the Central Control Monitor
(CCM) to identify the problem. The message area at the top of the Perfusion
Screen displays the highest priority alarm, alert, status, or error message. If two
conditions of equal priority exist at the same time, the condition that was detected
first will be displayed on the CCM until it clears. If the second condition still exists
after the first has been cleared, then that message will be displayed.
All messages post in the Messages subtab within the Aux tab. The messages
can be viewed at any time during a case by pressing the Aux tab and opening the
Messages subtab. The subtab displays the messages and the time the message
was generated.
Follow the instructions provided under the "Messages" section in each of these
chapters:
• Central Control Monitor
Roller Pumps
•
• Centrifugal Control Unit
Modules
•
• Electronic Gas Blender
• Resolve the emergency as directed. Clamp lines, when necessary, to prevent air
from entering the patient. Stop the cardioplegia pump if it is drawing blood from
the arterial line and the arterial pump has been configured to stop or pause.
Note: You may configure your system so that the cardioplegia pump will stop
whenever an event stops or pauses the arterial (or primary) pump.
• Reset the air detection system after clearing any air if there is an air bubble
alarm.
• Restart the pump(s), if they have been configured to stop. Increase the pump
speed if they have been configured to reduce speed or go to Coast speed. With
a roller pump, unclamp the venous line and increase the speed to attain the
desired flow rate. With a centrifugal pump, attain the minimum pump speed
before unclamping the venous and arterial lines.
Air Deprimes a Centrifugal Pump
Air may deprime the centrifugal pump, stopping or greatly reducing flow. Small
amounts of air may be detected by a thin, pink line of foam at the top of the arterial
line. Clamp both the arterial and venous lines, then unclamp the arterial line and let
backflow purge air to the reservoir. If necessary, reclamp the arterial line, remove the
pump from the motor, and tip and tap the pump to remove the air.
Note: Letting backflow purge air to the reservoir will cause any pumps with a safety
connection to a backflow alarm to respond. Check connected pumps and restart if
stopped. Check the arterial cannula and arterial line for air that may have entered as
a result of the backflow condition.
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