Thoratec HeartMate III, Instructions For Use Manual, Page: 335 / 458

Alarms and Troubleshooting 7
HeartMate III Left Ventricular Assist System Instructions for Use 7-7
Table 7.2 System Controller Hazard Alarms
Priority
System
Controller
Screen
Active
Symbols
Silence
Period
Alarm Means To Resolve Alarm
HAZARD
2
minutes
Pump off
1. Check if the Fixed Speed setting is below 4,000
rpm AND the System Controller’s backup battery is
not installed. Under these conditions, the Pump can
only be started from the System Monitor’s Clinical
or Settings screen by pressing the Pump Start
button. Otherwise, press any button on the System
Controller to attempt Pump start.
2. Switch to the backup System Controller and attempt to
restart the Pump.
3. Clinically evaluate patient. Refer to page 7-10.
2
minutes
Low flow, flow
is less than
2.5 lpm
1. Ensure that the Driveline is connected to System
Controller.
Ensure that a power source is connected to
System Controller.
2. Clinically evaluate patient. Refer to page 7-11.
+
2
minutes
Driveline
disconnected
1. Immediately reconnect the Driveline to
System Controller and move the Driveline Safety
Lock on the System Controller to the locked
position.
If alarm persists after reconnecting the Driveline, press
any button on the System Controller to attempt Pump
start. Also, check that the Modular In-Line Connector
is secure. Otherwise, check if the Fixed Speed setting
is below 4,000 rpm AND the System Controller’s
backup battery is not installed. Under these
conditions, the Pump can only be started from the
System Monitor’s Clinical or Settings screen by
pressing the Pump Start button.
2. If Driveline is connected and alarm persists, replace
System Controller with a backup System Controller.
Refer to page 7-12.
+
+
2
minutes
Both power
cables are
disconnected
Immediately connect to a working power source
(Power Module, Mobile Power Unit, or two HeartMate
14 Volt Lithium-Ion batteries). Refer to page 7-13.
None -
the
audio
tone
cannot
be
silenced
System
Controller
Hardware Fault
(Microcontroller
Failure)
No active symbols (constant audio tone).
1. Immediately switch to the backup System
Controller.
2. Provide patient with a new System Controller.
Refer to page 7-15.
2
minutes
Low Battery,
Power input is
extremely low
with less than
5 min.
remaining
Immediately connect to a working power source (Power
Module, Mobile Power Unit, or two HeartMate 14 Volt
Lithium-Ion batteries). Refer to page 7-14.
+
+
+
+
OR