Heart valves prostheses and methods for percutaneous heart valve replacement
First Claim
1. A heart valve prosthesis having a compressed configuration for delivery within a vasculature and an expanded configuration for deployment within a native heart valve in a patient, comprising:
- a frame includinga valve support having a first end and a second end, the valve support being configured to hold a prosthetic valve component therein, anda plurality of support arms extending from the second end of the valve support, wherein when the heart valve prosthesis is in the expanded configuration,the plurality of support arms are configured to extend toward the first end of the valve support for engaging a subannular surface of the native heart valve andone or more of the plurality of support arms comprises a curvilinear-shaped support arm, the curvilinear-shaped support arm havinga first arcuate region being formed to curve toward the valve support proximate the second end,a second arcuate region being formed to curve away from the valve support proximate the first end, anda straight region being formed to slant toward the valve support in an upward and inward direction relative to a longitudinal axis of the valve support as the straight region extends from a first transitional point with the first arcuate region to a second transitional point with the second arcuate region,wherein the second arcuate region defines a first curved segment that generally curves in an outward and upstream direction from the second transitional point to reach an apex of the curvilinear-shaped support arm and defines a second curved segment that extends in an outward direction from the apex of the curvilinear-shaped support arm and curves slightly downward toward a free-end of the curvilinear-shaped support arm,wherein a landing zone configured to atraumatically engage tissue at the native heart valve is defined at the apex of the curvilinear-shaped support arm, the landing zone having a width that is greater than a width of the remainder of the curvilinear-shaped support arm.
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Accused Products
Abstract
Prosthetic heart valve devices and associated methods for percutaneous heart valve replacement are disclosed herein. A transcatheter valve prosthesis configured in accordance herewith includes a frame having a valve support and one or more support arms coupled thereto. The one or more support arms are configured to extend from the second end of the valve support toward the first end when the valve prosthesis is in an expanded configuration. When deployed in the expanded configuration, the one or more support arms have a curvilinear shape, such as a substantially S-shape, that at least partially engages tissue at the native heart valve.
84 Citations
14 Claims
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1. A heart valve prosthesis having a compressed configuration for delivery within a vasculature and an expanded configuration for deployment within a native heart valve in a patient, comprising:
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a frame including a valve support having a first end and a second end, the valve support being configured to hold a prosthetic valve component therein, and a plurality of support arms extending from the second end of the valve support, wherein when the heart valve prosthesis is in the expanded configuration, the plurality of support arms are configured to extend toward the first end of the valve support for engaging a subannular surface of the native heart valve and one or more of the plurality of support arms comprises a curvilinear-shaped support arm, the curvilinear-shaped support arm having a first arcuate region being formed to curve toward the valve support proximate the second end, a second arcuate region being formed to curve away from the valve support proximate the first end, and a straight region being formed to slant toward the valve support in an upward and inward direction relative to a longitudinal axis of the valve support as the straight region extends from a first transitional point with the first arcuate region to a second transitional point with the second arcuate region, wherein the second arcuate region defines a first curved segment that generally curves in an outward and upstream direction from the second transitional point to reach an apex of the curvilinear-shaped support arm and defines a second curved segment that extends in an outward direction from the apex of the curvilinear-shaped support arm and curves slightly downward toward a free-end of the curvilinear-shaped support arm, wherein a landing zone configured to atraumatically engage tissue at the native heart valve is defined at the apex of the curvilinear-shaped support arm, the landing zone having a width that is greater than a width of the remainder of the curvilinear-shaped support arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A heart valve prosthesis for treating a native mitral valve of a patient, the prosthesis comprising:
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a cylindrical support having an upstream portion, a downstream portion and a first cross-sectional dimension, wherein the cylindrical support is configured to hold a prosthetic valve component that inhibits retrograde blood flow; a plurality of S-shaped support arms extending from the downstream portion of the cylindrical support, wherein when the heart valve prosthesis is in an expanded configuration the S-shaped support arms are aligned substantially in parallel with a longitudinal axis of the cylindrical support as the S-shaped support arms extend in an upstream direction and are configured to extend in the upstream direction to engage cardiac tissue on or below an annulus of the native mitral valve, the S-shaped support arms having a first arcuate region being formed to curve toward the cylindrical support proximate the downstream portion, a second arcuate region being formed to curve away from the cylindrical support proximate the upstream portion, and a straight region being formed to slant toward the cylindrical support in an upward and inward direction relative to a longitudinal axis of the cylindrical support as the straight region extends from a first transitional point with the first arcuate region to a second transitional point with the second arcuate region, wherein the second arcuate region defines a first curved segment that generally curves in an outward and upstream direction from the second transitional point to reach an apex of the S-shaped support arm and defines a second curved segment that extends in an outward direction from the apex of the S-shaped support arm and curves slightly downward toward a free-end of the S-shaped support arm, wherein a landing zone configured to atraumatically engage tissue at the native mitral valve is defined at the apex of the S-shaped support arm, the landing zone having a width that is greater than a width of the remainder of the S-shaped support arm; and a radially-extending segment extending from the upstream portion of the cylindrical support and having a second cross-sectional dimension greater than the first cross-sectional dimension, wherein when the heart valve prosthesis is in the expanded configuration the radially-extending segment is configured to radially extend from the upstream portion of the cylindrical support for engaging cardiac tissue on or above the annulus of the native mitral valve. - View Dependent Claims (13, 14)
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Specification