US 12,491,069 B2
Heart valve prosthesis
Gil Naor, Hofit (IL); and Gideon Meyer-Brodnitz, Yokneam (IL)
Assigned to Mitrassist Medical Ltd., Caesarea (IL)
Appl. No. 16/477,196
Filed by Mitrassist Medical Ltd., Caesarea (IL)
PCT Filed Jan. 11, 2018, PCT No. PCT/IL2018/050049
§ 371(c)(1), (2) Date Jul. 11, 2019,
PCT Pub. No. WO2018/131042, PCT Pub. Date Jul. 19, 2018.
Claims priority of provisional application 62/444,835, filed on Jan. 11, 2017.
Prior Publication US 2019/0358033 A1, Nov. 28, 2019
Int. Cl. A61F 2/24 (2006.01); A61F 2/82 (2013.01); A61F 2/91 (2013.01)
CPC A61F 2/2418 (2013.01) [A61F 2/2415 (2013.01); A61F 2/243 (2013.01); A61F 2/2445 (2013.01); A61F 2/2466 (2013.01); A61F 2002/825 (2013.01); A61F 2/91 (2013.01); A61F 2210/0014 (2013.01); A61F 2220/0075 (2013.01); A61F 2230/0065 (2013.01); A61F 2230/0093 (2013.01); A61F 2250/0039 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A heart valve prosthesis for placing in a natural heart valve comprising:
a frame for supporting an artificial heart valve, the frame comprising:
a plurality of struts extending from an upstream side of the heart valve prosthesis to a downstream side of the heart valve prosthesis; and
a plurality of connectors attached between said plurality of struts; wherein:
the struts and the connectors which comprise the frame form a hollow tube with a center lumen for blood flow from an upstream side of the natural heart valve to a downstream side of the natural heart valve;
an upstream portion of the frame is configured to expand wider than a natural heart valve annulus;
a downstream portion of the frame is configured to expand wider than a natural heart valve annulus; and
the downstream portion of the frame includes extensions each having an initial portion adjacent said hollow tube, said initial portion configured to bend outward of the center lumen of the frame, wherein a terminal end of each said extension bends back and is presented toward said frame, to present a round outer surface sized and shaped to be wider than the natural heart valve annulus, for converting upstream pressure to radially outward pressure thereby pushing radially outward toward the natural heart walls, for sealing between the frame and the natural heart walls.