8.6
Instructions for Use & Clinical Reference Manual (US)
Table 8.2 Automated Impella
®
Controller Alarm Messages (continued)
Severity Alarm Header
Action
Cause
Impella Position Wrong
1. Confirm Impella position with
imaging.
2. Pull Impella back 2 cm.
Controller has detected that the
Impella
®
Catheter is in the wrong
position, with the outlet area too
close to the aortic valve.
Ser
io
us A
lar
m
s
Placement Signal Not
Reliable
Placement Monitoring and Suction are
suspended.
1. Monitor patient hemodynamics.
2. Monitor Impella position with
imaging.
There is a problem with the Impella
®
Catheter sensor signal.
Purge Cassette Failure
Replace purge cassette.
There is a problem with the purge
cassette software.
Purge Volume Critically Low
1. Open the
PURGE SYSTEM
menu
and select Change Purge Fluid.
2. Follow the instructions to change
the purge fluid.
There are 15 mL (in addition to 5%
of the starting bag volume) or fewer
remaining in the purge fluid bag.
Suction
1. Check filling and volume status.
2. Check Impella position.
3. Reduce P-level.
Suction is detected.
A
dv
is
or
y A
la
rm
s
AC Power Disconnected
Controller is running on battery power. AC power was disconnected.
Audio Off
The auditory signal for the following
alarm has been disabled.
<Alarm will be listed here>
User has disabled audio for
Placement Signal Not Reliable,
Purge Pressure High, Purge System
Blocked, or Placement Signal Lumen
Blocked alarm.
Impella Flow Reduced
1. Check Impella position.
2. Check filling and volume status.
3. Reduce P-Level.
Motor speed has been reduced in
response to suction.
Impella Position Unknown
Impella Catheter position unknown
due to low pulsatility.
Assess cardiac function.
Impella Catheter position unknown
due to low pulsatility.
Impella Position Unknown
Confirm Impella position with imaging. Impella Catheter position unknown
detected by algorithm
Placement Signal Lumen
Blocked
Placement and Suction Monitoring are
Suspended.
Aspirate with syringe, then flush.
Controller detects placement signal
pulsatility is low and speed and
motor current are high for more than
5 consecutive minutes.
Summary of Contents for Impella 2.5
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