Terumo 801763, Operator'S Manual, Page: 284 / 359

Emergency Procedures
10-5
Equipment Situations
Pump Failure
An audible alert or alarm and message or only a message will be generated to
indicate a pump failure involving a roller pump overspeed condition, a roller pump
jam, or centrifugal pump overcurrent condition. Check the message area on the CCM
to identify whether there is an overspeed condition, roller pump jam, or centrifugal
pump overcurrent condition. Follow the specific operator response for these
messages.
WARNING:
Always check the direction of rotation before starting a backup or
standby roller pump to make sure that the roller pump default direction matches
the system direction. Retrograde pumping MAY CAUSE SEVERE PATIENT
INJURY OR DEATH by drawing air into the bloodline which might then be
pumped into the patient.
If you must switch to another pump, consider the tubing length available and select
the appropriate method below.
• If there is sufficient tubing length to reach another pump, clamp the lines, switch
the tubing to a new pump, verify default direction, and check tubing size flow
constants.
• If the tubing is not long enough, clamp the lines and remove the tubing from the
current pump. Replace current pump with new pump and place the tubing into the
new pump. Verify default direction and check tubing size flow constants.
If the new pump was designated as the backup pump or is a pump of the same type,
do not deactivate the safety systems during this switch. Use the Reassign Module
subtab within the Systems tab to assign pump functionality and safety connections
to the backup pump or another pump of the same type. After reassignment, verify all
operating parameters, including tube size or flow constant, direction, and display units
on the pump display, before starting pump.
If a primary centrifugal pump is reassigned to a backup roller pump and if flow has
been placed on the centrifugal pump, flow module data will no longer be displayed
and the backflow alarm and minimum flow alarm are no longer available. In
addition, the centrifugal Coast response becomes a roller pump Stop response for
alarm events and a roller pump Message Only response for alert events.
The table indicates how pump responses change when a primary centrifugal pump is
reassigned to a backup roller pump.
Primary Centrifugal Pump Response: Backup Roller Pump Response:
Stop Stop
Coast Stop - for alarm events
Message Only - for alert events
Message Only Message Only
No Response No Response
If manual operation of a roller pump is necessary, use a properly set up hand crank
to turn the pump in the direction of forward flow. If the pump is difficult to turn, unplug
the pump cable at the pump. See the Roller Pump chapter, Manual Operation of
the Pump
section for additional details regarding the use of the hand crank.
If manual operation of a centrifugal pump is necessary, temporarily clamp the arterial
and venous lines, remove the pump from the drive motor, and mount it in a manual
drive unit that has been secured to a vertical pole. Turn the handle in the direction of
the arrows and monitor the speed using the indicators. See the Centrifugal Control
Unit
chapter,
Manual Drive Unit
section, and
Using Standby Equipment
section,
for additional details regarding the use of the centrifugal manual drive.