The small size of the Jarvik 2000® Ventricular Assist Device (VAD) gives it important advantages. The Jarvik 2000 is small enough to fit inside the left ventricle which is not the case with larger VADs. Larger VADs also require creation of a “pump pocket” which creates a site for discomfort and possible infection. The Jarvik 2000 does not require a pump pocket because of its small size. The whole unit sits inside the left ventricle and allows the ventricle to continue its normal function, filling with and ejecting blood.
The small size of the Jarvik 2000 also makes it easy to implant and a viable treatment option for smaller adults and large children: in fact, it has been implanted successfully in patients as young as 11 years old. Jarvik Heart is also at work developing a smaller infant pump for use in infants and younger children.
As an axial-flow pump optimized for its role supporting the heart, the Jarvik 2000 moves blood out of the heart at an impressive flow rate. With only one moving part, it is also totally silent. It is designed to be as “forgettable” as an implanted device can be — an ideal that drives the design of all of Jarvik Heart’s products.