Method of closing an opening in a wall of the heart

摘要

Disclosed is a closure catheter, for closing a tissue opening such as an atrial septal defect, patent foreman ovale, or the left atrial appendage of the heart. The closure catheter carries a plurality of tissue anchors, which may be deployed into tissue surrounding the opening, and used to draw the opening closed. Methods are also disclosed.

主权项

1. A method of securing a prosthesis to an opening of an atrium of a heart comprising:
advancing a catheter having a proximal portion, a distal portion, and two or more tubular anchor supports within the distal portion through the vasculature to an atrium of a heart, wherein each tubular anchor support slidably retains at least one tissue anchor therein, wherein each tubular support has a first longitudinally elongated and radially compact configuration and a second longitudinally contracted and radially expanded configuration; positioning at least a portion of the two or more tubular supports within an opening of the atrium in the first longitudinally elongated and radially compact configuration; altering the configuration of the two or more tubular supports within an opening of the atrium to attain the second longitudinally contracted and radially expanded configuration; ejecting at least one tissue anchor from each tubular support; and wherein each ejected tissue anchor passes through a prosthesis positioned within the opening of the atrium.