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Vascular elastance

  • US 9,987,153 B2
  • Filed: 05/31/2011
  • Issued: 06/05/2018
  • Est. Priority Date: 06/08/2010
  • Status: Active Grant
First Claim
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1. A device configured to be implanted in a pulmonary artery to treat pulmonary hypertension, the device comprising:

  • a balloon having an outer surface and a cylindrical shape, the balloon sized and shaped to be fully implanted within the pulmonary artery and configured to receive a compressible fluid;

    an interface sized and shaped to be fully implanted within the pulmonary artery and configured to expand upon deployment to intimately contact a wall of the pulmonary artery, the interface configured to be coupled to the balloon so that the balloon is suspended within a lumen of the pulmonary artery such that the balloon compresses under positive differential pressure where blood is permitted to flow between the outer surface of the balloon and an inner surface of the wall of the pulmonary artery, the balloon further configured to return to an original, expanded position under negative differential pressure where blood is permitted to flow between the outer surface of the balloon and the inner surface of the wall of the pulmonary artery, the interface having an external surface configured to bond with the wall of the pulmonary artery; and

    a coating disposed on the balloon to limit diffusion of the compressible fluid through the balloon.

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