TRANSCATHETER PROSTHETIC VALVE FOR MITRAL OR TRICUSPID VALVE REPLACEMENT
First Claim
1. A prosthetic mitral valve assembly, comprising:
- a radially expandable stent including;
an upper section anatomically configured to fit to a mitral valve annulus within a left atrium of a heart;
a lower section coupled to the upper section and configured to fit within the mitral valve annulus; and
migration blocker rods extending around at least a portion of a circumference of the lower section, the migration blocker rods to prevent axial movement of the stent with respect to the mitral valve annulus; and
a replacement valve coupled to the stent.
3 Assignments
0 Petitions
Accused Products
Abstract
A prosthesis secures a replacement valve in a heart. The prosthesis includes a radially expandable inflow section and outflow section, and migration blocker rods. The inflow section has a tapered shape and is implanted within an atrium of a heart adjacent a native valve annulus. The outflow section couples to the inflow section, and is configured to be implanted through the native valve annulus and at least partially within a ventricle of the heart. The migration blocker rods extend circumferentially around at least a portion of the outflow section and hold native leaflets of the heart valve. In a contracted configuration, the prosthesis may be implanted through a catheter into the heart. In an expanded configuration, the tapered shape of the inflow section in the atrium cooperates with the migration blockers in the ventricle to hold the prosthesis against the native valve annulus.
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Citations
16 Claims
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1. A prosthetic mitral valve assembly, comprising:
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a radially expandable stent including; an upper section anatomically configured to fit to a mitral valve annulus within a left atrium of a heart; a lower section coupled to the upper section and configured to fit within the mitral valve annulus; and migration blocker rods extending around at least a portion of a circumference of the lower section, the migration blocker rods to prevent axial movement of the stent with respect to the mitral valve annulus; and a replacement valve coupled to the stent. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A prosthesis for securing a percutaneously implantable replacement valve in a heart, comprising:
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a radially expandable inflow section configured, in a deployed configuration, to be implanted within an atrium of a heart adjacent a native valve annulus of a heart valve, the inflow section including a proximal opening and a distal opening, the proximal opening having a greater circumference than that of the distal opening such that the inflow section is tapered; a radially expandable outflow section coupled to the distal opening of the inflow section, the outflow section configured, in a deployed configuration, to be implanted through the native valve annulus and at least partially within a ventricle of the heart; and two or more migration blocker rods extending circumferentially around at least a portion of the outflow section, a gap between the two or more migration blockers and the outflow section configured to hold native leaflets of the heart valve; wherein, in a contracted configuration, the prosthesis is configured to be implanted through a catheter into the heart; and wherein, in an expanded configuration, the tapered shape of the inflow section in the atrium cooperates with the two or more migration blockers in the ventricle to hold the prosthesis against the native valve annulus. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification