Patent ID: 7780700
Filing Date: 2010-08-24
Classification: A61B

Abstract:
1. A method of closing a patent foramen ovale having a channel formed between overlapping surfaces of a septum primum and a septum secundum, the septum primum having a proximal surface and a distal surface adjacent the left atrium, the septum secundum having a proximal surface adjacent the right atrium and a distal surface, the channel disposed between the overlapping proximal surface of the septum primum and the distal surface of the septum secundum, the method comprising: providing a closure device having a proximal end, a distal end, a proximal segment, an intermediate segment and a distal segment, the proximal and intermediate segments defining a first clip-shaped portion and the intermediate and distal segments defining a second clip-shaped portion, wherein the closure device is self-expandable to a deployment shape wherein the proximal, intermediate and distal segments are generally parallel to one another; deploying the closure device at the patent foramen ovale such that the second clip-shaped portion is positioned over a tip of the septum primum and the first clip-shaped portion is positioned over a tip of the septum secundum, with the intermediate segment lying in the channel between the overlapping septum primum and the septum secundum; and locking the position of the proximal segment, the intermediate segment and the distal segment of the closure device after deployment with a locking element; wherein the closure device when locked exerts a force to draw the septum primum and septum secundum together in an overlapping configuration to close the channel formed between the overlapping proximal surface of the septum primum and the distal surface of the septum secundum; wherein the locking element remains at the patent foramen ovale after locking.