Patent ID: 11951001
Assignee: EDWARDS LIFESCIENCES CARDIAQ LLC
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A replacement heart valve prosthesis for deployment at a native valve, the prosthesis comprising:
a single-piece expandable frame portion expandable from a collapsed frame configuration to an expanded frame configuration comprising a proximal end and a distal end and a longitudinal axis extending therethrough, the expandable frame portion comprising a plurality of cells configured to collapse radially for delivery and to expand radially upon deployment;
a valve body attached to the expandable frame portion, the valve body comprising a plurality of leaflets configured to open to allow flow in a direction from the proximal end to the distal end of the expandable frame portion and to close to inhibit flow in a direction from the distal end to the proximal end of the expandable frame portion;
a proximal anchoring portion extending from the expandable frame portion and expandable from a collapsed configuration to an expanded configuration, wherein when the proximal anchoring portion is in the expanded configuration at least a portion of the proximal anchoring portion extends radially outwardly in a direction generally perpendicular to the longitudinal axis, the portion of the proximal anchoring portion that extends radially outwardly being sized and shaped to contact an atrial side of a native valve annulus;
a distal anchoring portion extending from the expandable frame portion and expandable from a collapsed configuration to an expanded configuration, the distal anchoring portion comprising a plurality of distal anchors, wherein when the distal anchoring portion is in the expanded configuration at least a portion of each distal anchor extends radially outward from the expandable frame portion; and
a skirt annularly positioned around an exterior of the expandable frame portion to create an axial barrier to fluid flow exterior to the expandable frame portion when deployed within a body cavity, the skirt comprising a proximal portion and a distal portion,
wherein when the expandable frame portion is in the expanded frame configuration:
the proximal portion extends radially outward from the expandable frame portion at a location spaced from the proximal end of the expandable frame portion, wherein at least a distal-most portion of the proximal portion is positioned further radially outward from the longitudinal axis than distal-most proximal ends of the distal anchors; and
the distal portion extends proximally from an inner edge of the proximal portion and turns to extend distally, at least a portion of the distal portion being positioned between the expandable frame portion and the distal anchoring portion.