REPLACEMENT HEART VALVE IMPLANT WITH LEAFLET PINNING EXPANDABLE FRAMEWORK

Abstract

An expandable framework for use in a replacement heart valve implant includes a plurality of struts defining a lattice structure with an inflow end, an outflow end, and a plurality of stabilization arches extending downstream from the outflow end. The lattice structure includes a first circumferential row of cells defining a plurality of lower crowns at the inflow end and a second circumferential row of cells defining a plurality of upper crowns at the outflow end, where the cells of the first and second circumferential rows each have a lower point and an upper point. The lower point of at least some of the cells in the second circumferential row is a free point devoid of attachment to any other strut and extends radially outward beyond a radially outer surface of any strut immediately below in an axial direction.

CPC Classifications