Device and method for increasing flow through the left atrial appendage
AssigneeEdwards Lifesciences Corporation
InventorsNeil S. Zimmerman, Robert C. Taft, Eric R. Reuland, David L. Hauser
Life of this patent
Estimating the term…
Abstract
Methods and devices for increasing flow in the left atrial appendage (LAA) include a conduit directing blood flow from a pulmonary artery into the LAA and/or a conduit drawing blood from the LAA by a Bernoulli effect. In one embodiment, a method comprises implanting a conduit in a pulmonary vein, expanding an inlet portion such that the conduit becomes anchored within the vein and directs blood through an outlet portion of the conduit into or toward the left atrial appendage.
Claims20
A method of implanting a prosthetic conduit in a heart, comprising:
- inserting a distal end portion of a delivery catheter into a left atrium of the heart, the prosthetic conduit being carried in a radially compressed or collapsed state by the distal end portion of the delivery catheter;
- expanding an inlet portion of the prosthetic conduit in a left atrial appendage such that the inlet portion of the prosthetic conduit becomes anchored within the left atrial appendage and directs blood in the left atrial appendage to flow through a lumen of the prosthetic conduit and outwardly through an outlet portion of the prosthetic conduit;
- and
- locating the outlet portion in the left atrium such that the outlet portion extends outwardly from an ostium of the left atrial appendage toward a mitral valve such that a flow of blood from the outlet portion is directed to flow in a direction toward the mitral valve.
A method of implanting a conduit in a heart, comprising:
- anchoring an inlet portion of the conduit within a left atrial appendage such that the conduit extends outwardly from an ostium of the left atrial appendage into a left atrium in a direction toward a mitral valve and directs a flow of blood from the left atrial appendage through a lumen of the conduit and outwardly through an outlet portion of the conduit in a direction toward the mitral valve.
A method of implanting a conduit in a heart, comprising:
- anchoring an inlet portion of the conduit within a left atrial appendage such that the conduit extends outwardly from the left atrial appendage into a left atrium and directs a flow of blood from the left atrial appendage through a lumen of the conduit and outwardly through an outlet portion of the conduit in a direction toward the left atrium, and such that the inlet portion contacts walls of the left atrial appendage while leaving at least a portion of an ostium of the left atrial appendage open such that blood can flow into or out of the left atrial appendage around the conduit.
Dependencies are inferred from the claim text.