Methods and apparatus using an anchored balloon for treating pulmonary arterial hypertension

A system for treating pulmonary hypertension, said system comprising:

• an implantable port configured for subcutaneous implantation and having an internal chamber;
• a guide conduit attached at one end to the implantable port;
• an inflatable balloon attached at another end of the guide conduit to receive an inflation medium therefrom;
• an actuating wire having a distal end with at least one tissue-penetrating element for anchoring within the heart chamber;
• and
• a catheter having a T-branch that is configured to lie within the heart chamber, wherein (1) one branch of the T extends into the pulmonary artery and has a passage that slidably receives the guide conduit to deploy the guide conduit and the inflatable balloon from the catheter within the pulmonary artery and (2) the other branch of the T has a passage that slidably receives the actuating wire to deploy the at least one tissue-penetrating element from the catheter to anchor the catheter within the heart chamber, wherein the tissue-penetrating element is movable independently of the balloon.