Patent ID: 7303526
Filing Date: 2007-12-04
Classification: A61B,A61N,Y10S

Abstract:
1. A device for improving a patient's cardiac function by partitioning a chamber of the patient's heart, comprising: a frame construction that has a leading distal portion, that has a plurality of frame elements each of which is secured by an end thereof to the leading distal portion of the frame construction and the frame elements having a plurality of proximal ends configured to expand outwardly to engage the interior of the heart chamber and that is movable from a collapsed state, wherein the frame construction has a small cross-dimension to allow the frame construction to be advanced through a passageway of a delivery catheter into a chamber of the patient's heart, and expanded within the heart chamber to an expanded state wherein the frame construction, after leaving the passageway of the delivery catheter and having been located in an installed position in the heart chamber, has a cross-dimension substantially larger than the small diameter of the tubular passage; at least two anchor formations which are configured to be advanced through the passageway of the delivery catheter to the chamber of the heart with the frame construction, having at least one anchoring portion that is positioned and capable of anchoring to tissue of the patient's heart wall which defines at least in part the patient's heart chamber to anchor the device in the installed position solely to the tissue of the heart wall within the chamber and without any anchoring structure outside of the chamber, the anchoring portions being spaced from one another to allow for positioning of the device at a select angle relative to the heart chamber, and a membrane which is secured to a proximal side of the frame construction and which is in a folded condition while being fed through the delivery catheter, and which is in an unfolded condition after leaving the delivery catheter so as to define a pressure receiving surface which partitions the heart chamber into functional and non-functional portions.