Heart Mate II Ventricular Assist Device

Heart Mate II Ventricular Assist Device

The Heart Mate II pump is implanted below the heart. One end of the pump connects to the left ventricle and the other end connects to the aorta (the large artery that takes blood from the heart to the rest of the body). It works by pumping blood by continuous flow from the left ventricle to the aorta.

A cable (also called driveline) then passes from the device through the skin on your abdomen to a controller, a small external computer. The controller runs the pump and provides messages and alarms to help you operate the system. The controller is powered by two batteries when you are mobile. The controller requires two power sources to be connected at all times. Two batteries will provide 10-14 hours of power. When the batteries are low on power, they will need to be replaced. You will have extra batteries and a battery charger. You will also have a Mobile Power Unit to connect to wall power.

Watch the videos to the right to learn about the controller, alarms, and step by step how to change your controller and batteries.

Reviewed: 10/16

HeartWare Ventricular Assist Device

HeartWare Ventricular Assist Device

The HeartWare Ventricular Assist Device is attached to the left ventricle. A tube goes from the device to the aorta (the large artery that takes blood from the heart to the rest of the body. It works by pumping blood by continuous flow from the left ventricle to the aorta.

A cable (also called driveline) then passes from the device through the skin on your abdomen to a controller, a small external computer. The controller runs the pump and provides messages and alarms to help you operate the system.

The controller is powered by one battery and either a second battery, or an AC adapter (plugs into the wall) or a DC adapter (plugs into car). The controller requires two power sources to be connected at all times. One battery will provide 4-5 hours of power. When the battery is low on power, it will need to be replaced. You will have extra batteries and a battery charger.

Watch the videos to the right to learn about the controller, alarms, and step by step how to change your controller and batteries. 

1-H-Controller

The HeartWare Controller

HW-Alarm-Adapter

The alarm adapter (to be inserted in controller when powered down to silence the alarm).

HW-Battery

A battery (a power source).

HW-Controller-A-Adapter

HeartWare controller AC adapter-Power cord (also a power source).

HW-Driveline

The driveline (from patient to controller).

HW-Controller-Change-1

Performing a controller change (see video)
POWER - PATIENT - POWER
1. Place alarm adapter in data/computer (blue) port of "bad" controller.
2. POWER - next remove one power from "bad" controller and connect to "new" controller.
3. PATIENT - next move driveline from "bad" controller to "new" controller.
4. POWER - move 2nd power source from "bad" controller to "new" controller.

  • Notify VAD/MCS team if not already done.
  • When complete, make sure new controller does not have alarm adapter in data port.
  • SUMMARY: Place alarm silence in the "bad" controller then change over 1 "power" then "patient" then other "power".