Patent ID: 9333328
Filing Date: 2016-05-10
CPC Classification: A61M

Claim Text:
1. Apparatus for improving compliance of a pulmonary artery for treatment of pulmonary hypertension, the apparatus consisting essentially of: an inelastic, subcutaneous reservoir having a hollow body; a conduit having a distal end and a proximal end coupled to the subcutaneous reservoir, the conduit configured to extend through the subclavian vein such that the distal end is implanted distal to a pulmonary valve; a compliant body coupled to the distal end of the conduit, the compliant body configured for placement in the pulmonary artery distal to the pulmonary valve; and a compressible fluid disposed in the subcutaneous reservoir, the conduit, and the compliant body, the compressible fluid having a pressure selected such that the compliant body expands during diastole and contracts during systole, wherein the compliant body further is configured to contract during systole to move the compressible fluid towards the subcutaneous reservoir and to expand during diastole, the expansion and contraction configured to decrease peak pressure in the pulmonary artery and improve compliance of the pulmonary artery, thereby reducing remodeling of the pulmonary artery.