Jarvik 2000 FlowMaker® LVAD
The Jarvik 2000 VAD provides additional blood flow in patients who have advanced congestive heart failure. The titanium housing of the Jarvik 2000 contains a rotating impeller, which is magnetically driven and supported by mechanical bearings made of silicon carbide. The impeller is the only moving part of the Jarvik 2000 VAD.
Currently, the Jarvik 2000 VAD is used in the United States in an FDA clinical trial of support as a bridge-to-transplant as well as destination therapy. It is fully approved for use outside of the United States.
The Jarvik 2000 is implanted in the thoracic cavity and within the pericardium, which surrounds the heart. The Jarvik 2000 VAD (1) is held in the apex of the ventricle (2) by a sewing cuff (3), and the blood is carried to the aorta (4) through an outflow graft (5). The version of the Jarvik 2000 used in the FDA approved study has a percutaneous drive cable (6) which exits through the abdominal wall.
The version of the Jarvik 2000 VAD used outside the United States has a drive cable, which exits the body through a connector (called a ‘pedestal’) behind the left ear. These implants are often considered to be permanent therapy (the term “destination therapy” is sometimes used). Support periods with the Jarvik 2000 Ventricular Assist System have exceeded 7 years.
Jarvik 2000 Ventricular Assist System External Equipment
- After the Jarvik 2000 drive cable exits the body, it is connected to an external extension cable (1a), which provides additional length and flexibility. (For the behind-the-ear version of the Jarvik 2000 VAD, the external cable is called the pedestal cable (1b).
- The extension cable is connected to the system controller (2), which maintains the selected speed and alerts users if adjustments are required.
- The system controller is connected to a single lithium ion battery pack (3) and cable, which can power the Jarvik 2000 pump for up to 12 hours.
- The lithium ion battery pack is connected to the system controller by a Y cable (4), which allows the battery to be changed without the need to stop the pump.
Each patient supported with the Jarvik 2000 Ventricular Assist System carries backup components, in case of damage. There is also a separate battery, called the reserve battery (5) below with the system controller, for use while sleeping.
Jarvik 2000® Ventricular Assist System (US)
Jarvik Heart, Jarvik 2000® Ventricular Assist System - US Patient Handbook as of August 2011
Jarvik 2000® Ventricular Assist System (Non-US)
Jarvik Heart, Jarvik 2000® Ventricular Assist System - NON-US Patient Handbook as of August 2011