Abstract: A frame for an implantable medical device, comprising: a first member, comprising a plurality of struts defining a plurality of cells, wherein the first member is annular and defines a longitudinal direction which is parallel to the axis of the first member, a radial direction, and a circumferential direction; a second member, comprising a plurality of struts and coupled to the first member at circumferentially distributed locations; wherein the second member overlaps a first end portion of the first member and extends beyond the first end portion of the first member.