Patent ID: 7582051
Filing Date: 2009-09-01
Classification: A61B

Abstract:
1. A device for treating a patient by partitioning a chamber of the patient's heart into a primary productive portion and a secondary non-productive portion, the device comprising: an expandable frame formed of a plurality of ribs having distal ends secured to a central hub and free, outwardly flared, proximal ends, a pressure receiving membrane formed at least in part of flexible material, the membrane forming a recess in an expanded, deployed configuration, wherein the membrane comprises a loose and flexible peripheral region configured to seal to a ventricular wall surface to partition the ventricle and create the secondary non-productive portion, wherein the flexible peripheral region of the membrane comprises notched serrations; and an outwardly biased member which is secured to the membrane at a position that is radially inward from the loose peripheral region of the membrane, wherein the outwardly biased member is configured to stiffen at least a portion of the membrane so as to reduce wrinkling of the membrane so that the peripheral region of the membrane may seal against a ventricular wall surface defining in part the heart chamber.