Thoratec HeartMate III, Instructions For Use Manual, Page: 74 / 458

2 System Operations
2-46 HeartMate III Left Ventricular Assist System Instructions for Use
Replacing the Current System Controller
There are two ways in which the System Controller can be exchanged. The first method assumes
that only the System Controller is exchanged and that a second power source is not available. The
second exchange method involves exchanging the System Controller using a second power
source.
The Pump Cable is the cable that is implanted inside the patient. One end connects directly to the
Pump and the other end exits the body. One end of the Modular Cable connects to the end of the
Pump Cable that exits the body. The other end of the Modular Cable connects directly to the
System Controller. Collectively, the cables are referred to as the Driveline.
IMPORTANT! Ensure that the patient understands the need for having a caregiver present during
System Controller exchange and that all labeling instructions are followed. This includes calling the
hospital contact if instructed.
IMPORTANT! The ability to successfully replace a System Controller may be affected by several
factors such as native cardiac output, cognitive function, and so on. Any of these may change over
the course of LVAD support, and therefore should be periodically assessed.
Replacing the Current System Controller with One Power Source
To replace the current System Controller with the replacement System Controller:
1. If the current System Controller is alarming, press the Silence Alarm button
( )
.
This will silence the audio alarms for 2 minutes.
2. Locate the replacement HeartMate III System Controller.
3. Complete the following steps:
a. Disconnect the White Power connection from the current System Controller.
b. Connect the White Power connection to the replacement System Controller.
c. Fully secure the white nut until tight.