Device and method for mitral valve regurgitation treatment
A mitral valve replacement device is adapted to be deployed at a mitral valve position in a human heart. The device has an atrial flange defining an atrial end of the device, a ventricular portion defining a ventricular end of the device, the ventricular portion having a height ranging between 2 mm to 15 mm, and an annulus support that is positioned between the atrial flange and the ventricular portion. The annulus support includes a ring of anchors extending radially therefrom, with an annular clipping space defined between the atrial flange and the ring of anchors. A plurality of leaflet holders positioned at the atrial end of the atrial flange, and a plurality of valve leaflets secured to the leaflet holders, and positioned inside the atrial flange at a location above the native annulus.
1. A mitral valve replacement device adapted to be deployed at a mitral valve position in a human heart, comprising:
an atrial flange defining an atrial end of the device, the atrial flange having a ventricular end that extends horizontally in a radial direction;
a ventricular portion defining a ventricular end of the device;
a neck positioned between the atrial flange and the ventricular portion;
an annulus support that is positioned between the ventricular portion and the neck, the annulus support including a ring of anchors, each anchor extending radially from the neck and ending in a rounded tip that bends in a circumferential direction, each anchor further including a segment that extends radially outwardly from the tip, then bends longitudinally toward the ventricular end, and then bends radially inwardly, with an annular clipping space defined between the atrial flange and the ring of anchors;
a plurality of leaflet holders positioned at the atrial end of the atrial flange; and
a plurality of valve leaflets secured to the leaflet holders, and positioned inside the atrial flange at a location above the native annulus.
2. The device of claim 1 , wherein at least a portion of one or more of the atrial flange, the annulus support and the ventricular portion is covered with tissue, fabric, or both tissue and fabric.
3. The device of claim 1 , further including at least one tail extending from the ventricular end of the ventricular portion.
4. The device of claim 1 , wherein at least a portion of one or more of the atrial flange, the annulus support and ventricular portion is coated with a biocompatible adhesive.
5. The device of claim 1 , wherein the ventricular portion has a height ranging between 2 mm to 15 mm.
6. The device of claim 1 , wherein the atrial flange includes a plurality of tabs arranged in an annular manner.
7. The device of claim 1 , wherein the ventricular portion comprises a plurality of V-shaped tabs.