FLARED PROSTHETIC CARDIAC VALVE DELIVERY DEVICES AND SYSTEMS
A device for treating a diseased native valve includes a frame structure having an unexpanded configuration and an expanded configuration, a plurality of leaflets coupled to the frame structure, and a spiral anchor configured to extend around the central annular portion. The frame structure in the expanded configuration includes a flared atrial portion, a central annular portion, and a flared ventricular portion. The frame structure includes a plurality of expandable cells and a plurality of paddles. Each of the paddles extends axially from a vertex of one of the plurality of expandable cells.
1 . A device for treating a diseased native valve, the device comprising:
a frame structure having an unexpanded configuration and an expanded configuration, the frame structure in the expanded configuration having a flared atrial portion, a central annular portion, and a flared ventricular portion, further wherein the frame structure comprises a plurality of expandable cells and a plurality of paddles, each of the paddles extending axially from a vertex of one of the plurality of expandable cells;
a plurality of leaflets coupled to the frame structure; and
a spiral anchor configured to extend around the central annular portion.
2 . The device of claim 1 , further comprising a skirt positioned around an external surface of the frame structure.
3 . The device of claim 2 , wherein the skirt comprises a plurality of tabs configured to cover an external surface of each of the paddles.
4 . The device of claim 1 , wherein the each of the plurality of paddles includes a linear extension and an eyelet.
5 . The device of claim 4 , wherein the linear extension is non-foreshortening and the plurality of expandable cells are foreshortening as the frame structure transitions from the unexpanded configuration to the expanded configuration.
6 . The device of claim 1 , wherein each of the paddles is curved so as to extend radially away from the vertex and then to point axially in an atrial direction.
7 . The device of claim 1 , wherein the expandable cells of the plurality of expandable cells are arranged in a plurality of annular rows.
8 . The device of claim 7 , wherein the plurality of annular rows comprises three annular rows.
9 . The device of claim 1 , wherein the frame structure has an axial length of less than 35 mm in the expanded configuration.
10 . The device of claim 1 , wherein the spiral anchor is a flat spiral anchor.
11 . The device of claim 1 , wherein the frame structure is configured to self-expand from the unexpanded configuration to the expanded configuration.
12 . The device of claim 1 , wherein the frame structure comprises nitinol.
13 . The device of claim 1 , wherein each of the expandable cells is substantially diamond shaped when the frame is in the expanded configuration.
14 . The device of claim 1 , wherein the flared atrial portion is configured to extend further radially outwards than the flared ventricular portion.
15 . The device of claim 1 , wherein every other vertex of the flared atrial portion comprises a paddle of the plurality of paddles extending therefrom.
16 . The device of claim 1 , further comprising a plurality of tabs, each tab extending from a paddle of the plurality of paddles, the tabs configured to engage with a valve delivery system.
17 . The device of claim 1 , further comprising a webbing configured to extend along a ventricular end of the frame structure.
18 . The device of claim 17 , wherein the webbing comprises a suture.
19 . The device of claim 17 , wherein the webbing comprises a skirt.
20 . The device of claim 1 , wherein expandable cells of the plurality of expandable cells are smaller at an atrial end of the frame structure than at a ventricular end of the frame structure.
21 - 22 . (canceled)