Patent ID: 8398537
Filing Date: 2013-03-19
Classification: A61B

Abstract:
1. A device for partitioning a ventricle of a patient's heart into a primary productive portion and a secondary non-productive portion, the device comprising: an expandable frame having a plurality of ribs joined at a central hub, the ribs having free proximal ends extending outwardly from the central hub; a membrane secured to the frame, the membrane having an outer edge region that is loose and flexible and configured to seal to a ventricular wall to partition the ventricle to create the secondary non-productive portion, wherein the proximal ends of the ribs terminate radially inward from the loose and flexible outer edge region of the membrane; and a biasing member secured to the membrane radially inward from the free proximal ends of the ribs and the outer edge region of the membrane, wherein the biasing member is configured to stiffen the membrane radially inward from the outer edge region while allowing the outer edge region of the membrane to remain loose and flexible to seal against the ventricle, the biasing member providing an outward expansive force while the ribs are partially contracted to prevent inwardly directed folding of the membrane.