Thoratec HeartMate III, Instructions For Use Manual, Page: 35 / 458

System Operations 2
HeartMate III Left Ventricular Assist System Instructions for Use 2-7
a
Standby components (extra 14 Volt Lithium-Ion batteries, backup System Controller) should be
maintained at conditions within the acceptable ranges so that they are available for immediate
use.
b
Every six months, the “sleeping” backup System Controller must be connected to a power
source to charge the 11 Volt Lithium-Ion backup battery inside. If the 11 Volt Lithium-Ion backup
battery inside the backup System Controller is not charged every six months, its charge level will
diminish and there may not be sufficient power to support the Pump if the backup System
Controller is in use during a power emergency (refer to
Maintaining Backup System Controller
Readiness on page 2-44).
System Controller Overview
The HeartMate III System Controller acts as the central power and communication hub for the
HeartMate III LVAS. It passes power from the Power Module, the Mobile Power Unit, Lithium-Ion
Batteries, or its own integrated emergency backup supply, down to the LVAD via the Driveline.
The System Controller constantly monitors system performance through communication with the
implanted LVAD and System Controller internal measurements. It alerts the user to any alarm
conditions by activating membrane panel LEDs and integrated audio annunciators. Further
Table 2.1 Operating Conditions
Equipment
Acceptable
Temperature
Range

F (

C)
Relative
Humidity
Air Pressure
mm Hg (hPA)
Power Module
32°F to 104°F
(0°C to 40°C)
30% to 75%
525 to 795
(700 to 1060)
Mobile Power Unit
32°F to 104°F
(0°C to 40°C)
15% to 93%
525 to 795
(700 to 1060)
System Monitor
50°F to 104°F
(10°C to 40°C)
30% to 75%
525 to 795
(700 to 1060)
HeartMate 14 Volt
Lithium-Ion
Batteries
32°F to 104°F
(0°C to 40°C)
30% to 75%
525 to 795
(700 to 1060)
Battery Charger
32°F to 104°F
(0°C to 40°C)
30% to 75%
525 to 795
(700 to 1060)
System Controller,
Backup System
Controller
a,b
32°F to 104°F
(0°C to 40°C)
15% to 93%
525 to 795
(700 to 1060)
11 Volt Lithium-Ion
Backup Battery 32°F to 104°F
(0°C to 40°C)
15% to 93%
525 to 795
(700 to 1060)