US 12,029,647 B2
Systems, methods and devices for prosthetic heart valve with single valve leaflet
Jeffrey W. Chambers, Maple Grove, MN (US); Saravana B. Kumar, Minnetonka, MN (US); Joseph P. Higgins, Minnetonka, MN (US); Robert J. Thatcher, Blaine, MN (US); Jason S. Diedering, Minneapolis, MN (US); and Jeffrey R. Stone, Minnetonka, MN (US)
Assigned to 4C Medical Technologies, Inc., Maple Grove, MN (US)
Filed by 4C Medical Technologies, Inc., Brooklyn Park, MN (US)
Filed on Mar. 6, 2018, as Appl. No. 15/913,509.
Claims priority of provisional application 62/468,112, filed on Mar. 7, 2017.
Prior Publication US 2018/0256329 A1, Sep. 13, 2018
Int. Cl. A61F 2/24 (2006.01)
CPC A61F 2/2445 (2013.01) [A61F 2/2409 (2013.01); A61F 2/2463 (2013.01); A61F 2220/0091 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A prosthetic mitral valve device adapted to anchor within a left atrium of a heart for supplementing and/or replacing function of dysfunctional native mitral valve leaflets disposed within an annulus located between the left atrium and a left ventricle of the heart, the device comprising:
an expandable anchoring structure defining a lower opening;
a first base side comprising a lower surface and operatively engaged with the expandable anchoring structure at the lower opening; and
a second base side operatively engaged with the expandable anchoring structure at the lower opening and comprising a single prosthetic leaflet comprising an upper surface; wherein:
the upper surface of the single prosthetic leaflet is adapted to directly engage the lower surface of the first base side in a closed position to cover the lower opening to prevent retrograde blood flow, resulting from the dysfunctional native mitral valve leaflets, through the lower opening; and
the single prosthetic leaflet is adapted to rotate away from the first base side in an open position to allow blood to flow through the lower opening.