Prosthetic heart valve devices and associated systems and methods
First Claim
1. A prosthetic treatment apparatus for treating a native mitral valve having a native annulus and native leaflets, the prosthetic treatment apparatus comprising:
- a support having a downstream portion configured to be positioned toward a left ventricle and an upstream portion configured to be positioned toward a left atrium, wherein the support is expandable from a low-profile configuration for delivery to an expanded configuration for implantation at the native mitral valve;
a prosthetic valve mounted to the support and adapted to allow blood flow in a downstream direction and to block blood flow in an upstream direction;
a plurality of arms coupled to the downstream portion of the support, wherein the arms extend outwardly from the support in an upstream direction when the support is in the expanded configuration; and
a skirt having an upstream end coupled to the support and a downstream end, wherein—
at least a portion of the skirt downstream of the upstream end extends radially outwardly from the valve support separate from the arms such that the upstream end has a first diameter and the downstream end has a second diameter greater than the first diameter,the skirt extends around an entire circumference of the support, andthe skirt is configured to fill gaps between the support and native tissue to inhibit blood flow therethrough.
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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 expandable support having an outer surface and configured for placement between leaflets of the native valve. The device can also include a plurality of asymmetrically arranged arms coupled to the expandable support and configured to receive the leaflets of the native valve between the arms and the outer surface. In some embodiments, the arms can include tip portions for engaging a subannular surface of the native valve.
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Citations
17 Claims
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1. A prosthetic treatment apparatus for treating a native mitral valve having a native annulus and native leaflets, the prosthetic treatment apparatus comprising:
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a support having a downstream portion configured to be positioned toward a left ventricle and an upstream portion configured to be positioned toward a left atrium, wherein the support is expandable from a low-profile configuration for delivery to an expanded configuration for implantation at the native mitral valve; a prosthetic valve mounted to the support and adapted to allow blood flow in a downstream direction and to block blood flow in an upstream direction; a plurality of arms coupled to the downstream portion of the support, wherein the arms extend outwardly from the support in an upstream direction when the support is in the expanded configuration; and a skirt having an upstream end coupled to the support and a downstream end, wherein— at least a portion of the skirt downstream of the upstream end extends radially outwardly from the valve support separate from the arms such that the upstream end has a first diameter and the downstream end has a second diameter greater than the first diameter, the skirt extends around an entire circumference of the support, and the skirt is configured to fill gaps between the support and native tissue to inhibit blood flow therethrough. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A prosthetic treatment apparatus for treating a native mitral valve having a native annulus and native leaflets, the prosthetic treatment apparatus comprising:
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a support having a distal portion configured to be positioned toward a left ventricle and a proximal portion configured to be positioned toward a left atrium, wherein the support is expandable from a low-profile configuration for implantation to an expanded configuration at a native mitral valve; a prosthetic valve mounted to the support and adapted to allow blood flow from the proximal portion of the support to the distal portion of the support and to block blood flow travelling proximally from the left ventricle to the left atrium; a plurality of anchoring arms connected to the distal portion of the support, wherein the arms extend proximally and radially outwardly from the support when the support is in the expanded configuration; and a sealing member extending around a circumference of the support and having a first end coupled to the support and a second end, wherein the sealing member has a portion between the first and second ends that extends radially outwardly from the support separate from the anchoring arms when the support is in the expanded configuration, and wherein the sealing member is configured to be inflated by blood disposed between the sealing member and the support to urge the sealing member against native tissue at or below the annulus. - View Dependent Claims (10)
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11. A prosthetic device configured for transcatheter replacement of a native mitral valve, the prosthetic device comprising:
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a support having a downstream portion configured to be positioned toward a left ventricle and an upstream portion configured to be positioned toward a left atrium, wherein the support is expandable from a low-profile configuration for delivery to an expanded configuration for implantation at a the native mitral valve; a prosthetic valve mounted to the support and adapted to allow blood flow in a downstream direction and to block blood flow in an upstream direction; a plurality of anchoring arms coupled to the downstream portion of the support, wherein the anchoring arms extend outwardly from the support in an upstream direction to engage a subannular surface of the native mitral valve when the support is in the expanded configuration; and a sealing member extending around a perimeter of the support, the sealing member having a first portion mounted to the support between the upstream and downstream portions, and a second portion downstream of the first portion, the second portion extending radially outwardly from the support and separate from the anchoring arms, wherein— the sealing member is configured to engage the annulus, leaflets, and/or commissures of the native mitral valve to minimize perivalvular leaks. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification