Peripheral Components
System Controller
The HeartMate II System Controller (
Figure 5
) controls LVAD operation and serves
as the primary user interface of the HeartMate II LVAS.
The System Controller performs the following functions:
-
Controls motor power and speed.
-
Provides redundant system operation.
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Monitors, interprets, and responds to system performance.
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Performs diagnostic monitoring.
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Provides hazard and advisory alarms.
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Records and stores events in memory.
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Transfers system performance data to the System Monitor or Display Module.
The System Controller contains two computer boards. One provides primary system
operation and the other provides complete backup system operation in the event
the primary system malfunctions.
The System Controller has two power leads (one with a black connector and one
with a white connector) that connect the System Controller to its power source.
While both leads provide equal power, the white lead contains a data link cable that
transmits information from the System Controller to the System Monitor or Display
Module during tethered operation. A battery inserted into the side of the Controller,
called the System Controller alarm battery module, provides limited power to the
System Controller’s audible alarms during situations when external power has been
disrupted. The System Controller alarm battery module does not provide backup
power to the System Controller or pump
CLINICAL OPERATION AND PATIENT MANAGEMENT
11
Figure 5
HeartMate II LVAS System Controller with Leads (note black and white connectors)
WARNING !
The System Controller alarm battery module only provides power to the
Controller’s audible alarm tones. It does NOT provide power to the Controller or pump.
