PROSTHETIC HEART VALVE DEVICES, PROSTHETIC MITRAL VALVES AND ASSOCIATED SYSTEMS AND METHODS
First Claim
1. A prosthetic heart valve device for treating a native heart valve having a native annulus and native leaflets, comprising:
- a valve support having an upstream region and a downstream region relative to blood flow direction through a native heart valve of a human heart, the upstream region being configured to support a prosthetic valve, the prosthetic valve having a plurality of leaflets and having an undeformed shape in which the leaflets coapt sufficiently to prevent backflow through the prosthetic valve;
an anchoring member arranged around the valve support and including an outwardly-facing fixation portion having an engagement surface configured to engage tissue at an implant site proximate the native annulus, the fixation portion having a first cross-sectional shape in an unbiased condition and being deformable into a second cross-sectional shape to adapt to a shape of the tissue at the implant site in a deployed state; and
a connection structure interconnecting the fixation portion to the valve support, the fixation portion extending from the connection structure at a transition zone, and the transition zone being configured to be positioned at a subannular location below the native annulus and to allow the fixation portion to deflect angularly relative to the connection structure;
wherein the tissue fixation portion of the anchoring member is mechanically isolated from the upstream region of the valve support such that the upstream region of the valve support maintains the undeformed shape if the anchoring member has deformed into the second cross-sectional shape.
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Accused Products
Abstract
Prosthetic heart valve devices for percutaneous replacement of native heart valves and associated systems and method are disclosed herein. A prosthetic heart valve device configured in accordance with a particular embodiment of the present technology can include an anchoring member having an upstream portion configured to engage with tissue on or near the annulus of the native heart valve and to deform in a non-circular shape to conform to the tissue. The device can also include a mechanically isolated valve support coupled to the anchoring member and configured to support a prosthetic valve. The device can further include an atrial extension member extending radially outward from the upstream portion of the anchoring member and which is deformable without substantially deforming the anchoring member. In some embodiments, the upstream portion of the anchoring member and the extension member may be deformed while the valve support remains sufficiently stable.
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Citations
19 Claims
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1. A prosthetic heart valve device for treating a native heart valve having a native annulus and native leaflets, comprising:
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a valve support having an upstream region and a downstream region relative to blood flow direction through a native heart valve of a human heart, the upstream region being configured to support a prosthetic valve, the prosthetic valve having a plurality of leaflets and having an undeformed shape in which the leaflets coapt sufficiently to prevent backflow through the prosthetic valve; an anchoring member arranged around the valve support and including an outwardly-facing fixation portion having an engagement surface configured to engage tissue at an implant site proximate the native annulus, the fixation portion having a first cross-sectional shape in an unbiased condition and being deformable into a second cross-sectional shape to adapt to a shape of the tissue at the implant site in a deployed state; and a connection structure interconnecting the fixation portion to the valve support, the fixation portion extending from the connection structure at a transition zone, and the transition zone being configured to be positioned at a subannular location below the native annulus and to allow the fixation portion to deflect angularly relative to the connection structure; wherein the tissue fixation portion of the anchoring member is mechanically isolated from the upstream region of the valve support such that the upstream region of the valve support maintains the undeformed shape if the anchoring member has deformed into the second cross-sectional shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19-92. -92. (canceled)
Specification