7.4
Severity Alarm Header
Purge System Failure
Impella Stopped
Reverse Flow
Reverse Flow
Impella Failure
Impella Stopped
Motor Current High
Complete Procedure
Purge System Open
Purge Pressure Low
Purge System Blocked
Purge Flow Low
Purge Line Click-On Not
Detected
Action
1. Replace purge cassette.
2. Switch to backup controller.
Restart Impella, or
remove Impella from ventricle.
Check for high afterload pressure.
Replace Impella.
1. Restart Impella.
2. Replace Impella after 3rd
unsuccessful restart attempt.
1. Follow the steps on the screen or
2. Exit the procedure
1. Check the purge system tubing for
open connections or leaks.
2. Replace purge cassette.
1. Check purge system tubing for leaks.
2. Increase concentration of dextrose in
the purge solution.
3. Replace purge cassette.
1. Check all purge system tubing for
kinks or blockages.
2. Decrease concentration of dextrose in
the purge solution.
1. Check purge system tubing for kinks.
2. Decrease concentration of dextrose in
the purge solution.
Check the purge line click-on and make
sure it is fully inserted.
Cause
There is a problem with the purger
unit driver.
Impella® RP Catheter is not
running; possible reverse flow
through Impella® RP Catheter.
Reverse flow detected at high
motor speed.
There is a problem with the
Impella® RP Catheter motor.
There is a problem with the
Impella® RP Catheter motor.
The Complete Procedure serious
alarm (yellow; see next page)
is active and the user has not
responded for an additional 2
minutes.
Purge pressure has dropped below
100 mmHg for 20 seconds or
longer.
Purge pressure has dropped below
300 mmHg with the purge flow
≥
30 mL/hr for 30 seconds or
longer.
Purge flow has dropped below
1 mL /hr.
Kinked or blocked purge
connecting tube.
Kinked or blocked purge lumen in
Impella® RP Catheter.
Purge pressure is
≥
1100 mmHg
with the purge flow <2 mL/hr.
The controller is not detecting that
the purge pressure transmitter
is clicked into the front of the
controller.
Table 7.2 Automated Impella
®
Controller Alarm Messages (continued)
Instructions for Use & Clinical Reference Manual (US)
