Thoratec HeartMate III, Instructions For Use Manual, Page: 46 / 458

2 System Operations
2-18 HeartMate III Left Ventricular Assist System Instructions for Use
Viewing Pump and System Information
Viewing information about the Pump is useful when recording daily values or trying to resolve
system problems on the telephone. When the System Controller is running, the user interface can
display the following information about current system operations:
• Speed
• Mode (indicated as Pulse Mode by
symbol)
• Flow
• Pulsatility Index (abbreviated as “PI” on the screen)
• Power
• Charge status of the System Controller’s backup battery (11 Volt Lithium-Ion)
To view information on the user interface screen, press and release the Display button ( ).
Each push of the Display button brings up a new screen. Each screen illuminates for 15 seconds
before it goes black, unless another button is pushed. The screens are always displayed in the
same order, starting with the first (Speed) screen. A dot at the bottom of each screen provides
navigational information about which of the five screens is in view.
Table 2.4 shows the display sequence.
Table 2.4 System Controller Display Screen Sequence
Button
Press
Description
Screen
Displayed
(Example)
Meaning
Press
Press
Display
button
ONCE
Pump speed in revolutions per minute (RPM)
Triangle indicates that the Pump is
in Pulse Mode.
Press
Press
Display
button
TWO times
Pump flow in liters per minute (LPM)
Press
Press
Display
button
THREE times
Pulsatility Index (PI)
Press
Press
Display
button
FOUR times
Power in watts (W)