Heart valve prosthesis and method of implantation thereof
First Claim
1. A heart valve prosthesis comprising:
- a supported valve comprising a biological valve portion mounted within a support structure, the supported valve being configured to provide for substantially unidirectional flow of blood through the supported valve, the supported valve having inflow and outflow ends that are spaced axially apart from each other; and
a fixation support member secured around an outer perimeter of the supported valve, the fixation support member comprising inflow and outflow portions, the inflow portion of the fixation support member extending from a radially inner contact surface of the fixation support member radially outwardly and axially in a direction of the inflow end of the supported valve upon deployment of the heart valve prosthesis, the outflow portion of the fixation support member extending from the radially inner contact surface radially outwardly and axially in a direction away from the inflow portion of the fixation support member upon deployment of the heart valve prosthesis, the radially inner contact surface being attached to a radially outer surface of the supported valve adjacent the inflow end of the supported valve, the supported valve and the fixation support member being deformable between a reduced cross-sectional dimension and an expanded cross-sectional dimension thereof when the heart valve prosthesis is deployed, whereby implantation of the heart valve prosthesis is facilitated,wherein the fixation support member comprises an annular support formed from a plurality of support features and having one of a U-shaped or V-shaped cross-sectional configuration for a longitudinal cross-section taken axially through the prosthesis in its expanded cross-sectional dimension, the support features alternate extending between the inflow and outflow directions along a circumferential path corresponding to the radially inner contact surface, the support features being interconnected at first junctures at an axial extent of the inflow portion and being interconnected at second junctures at an axial extent of the outflow portion, each support feature being directly connected to only two other support features such that the support features collectively extend along the entire axial length of the fixation support member.
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Accused Products
Abstract
A heart valve prosthesis has a supported valve including a biological valve portion mounted within a support structure. The supported valve has inflow and outflow ends spaced axially apart from each other. A fixation support member includes an inflow portion that extends from a radially inner contact surface of the fixation support member radially outwardly and axially in a direction of the inflow end of the supported valve. An outflow portion of the fixation support member extends from the radially inner contact surface radially outwardly and axially in a direction away from the inflow portion of the fixation support member. The radially inner contact surface is attached to a radially outer surface of the supported valve adjacent the inflow end of the supported valve.
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Citations
19 Claims
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1. A heart valve prosthesis comprising:
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a supported valve comprising a biological valve portion mounted within a support structure, the supported valve being configured to provide for substantially unidirectional flow of blood through the supported valve, the supported valve having inflow and outflow ends that are spaced axially apart from each other; and a fixation support member secured around an outer perimeter of the supported valve, the fixation support member comprising inflow and outflow portions, the inflow portion of the fixation support member extending from a radially inner contact surface of the fixation support member radially outwardly and axially in a direction of the inflow end of the supported valve upon deployment of the heart valve prosthesis, the outflow portion of the fixation support member extending from the radially inner contact surface radially outwardly and axially in a direction away from the inflow portion of the fixation support member upon deployment of the heart valve prosthesis, the radially inner contact surface being attached to a radially outer surface of the supported valve adjacent the inflow end of the supported valve, the supported valve and the fixation support member being deformable between a reduced cross-sectional dimension and an expanded cross-sectional dimension thereof when the heart valve prosthesis is deployed, whereby implantation of the heart valve prosthesis is facilitated, wherein the fixation support member comprises an annular support formed from a plurality of support features and having one of a U-shaped or V-shaped cross-sectional configuration for a longitudinal cross-section taken axially through the prosthesis in its expanded cross-sectional dimension, the support features alternate extending between the inflow and outflow directions along a circumferential path corresponding to the radially inner contact surface, the support features being interconnected at first junctures at an axial extent of the inflow portion and being interconnected at second junctures at an axial extent of the outflow portion, each support feature being directly connected to only two other support features such that the support features collectively extend along the entire axial length of the fixation support member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A heart valve prosthesis comprising:
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a supported valve comprising a biological valve portion mounted within a support structure, the supported valve being configured to provide for substantially unidirectional flow of blood through the supported valve, the supported valve having inflow and outflow ends that are spaced axially apart from each other and a fixation support member secured around an outer perimeter of the supported valve, the fixation support member comprising inflow and outflow portions, the inflow portion of the fixation support member extending from a radially inner contact surface of the fixation support member radially outwardly and axially in a direction of the inflow end of the supported valve, the outflow portion of the fixation support member extending from the radially inner contact surface radially outwardly and axially in a direction away from the inflow portion of the fixation support member, the angle between the inflow and outflow portions of the fixation support member ranging between 70 degrees and 100 degrees wherein the radially inner contact surface is attached to a radially outer surface of the supported valve adjacent the inflow end of the supported valve, the supported valve and the fixation support member being deformable between a reduced cross-sectional dimension and an expanded cross-sectional dimension thereof, whereby implantation of the heart valve prosthesis is facilitated, wherein the fixation support member comprises an annular support formed from a plurality of support features and having one of a U-shaped or V-shaped cross-sectional configuration for a longitudinal cross-section taken axially through the prosthesis in its expanded cross-sectional dimension, the support features alternate extending between the inflow and outflow directions along a circumferential path corresponding to the radially inner contact surface, the support features being interconnected at first junctures at an axial extent of the inflow portion and being interconnected at second junctures at an axial extent of the outflow portion, each support feature being directly connected to only two other support features such that the support features collectively extend along the entire axial length of the fixation support member.
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18. A heart valve prosthesis comprising:
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a stented valve comprising a biological valve portion mounted within a stent, the stented valve being configured to provide for substantially unidirectional flow of blood through the stented valve, the stented valve having inflow and outflow ends that are spaced axially apart from each other; and a fixation support member extending around an outer perimeter of the supported valve, the fixation support member comprising inflow and outflow portions, the inflow portion of the fixation support member extending from a radially inner contact surface of the fixation support member radially outwardly and axially in a direction of the inflow end of the supported valve upon deployment of the heart valve prosthesis, the outflow portion of the fixation support member extending from the radially inner contact surface radially outwardly and axially in a direction away from the inflow portion of the fixation support member upon deployment of the heart valve prosthesis, a space between the inflow and outflow portions of the fixation support member defining a toroidal receptacle around the perimeter of the supported valve that is dimensioned and configured for receiving a heart valve annulus when the prosthesis is implanted at the heart valve annulus, wherein the fixation support member comprises a plurality of support features and having one of a U-shaped or V-shaped cross-sectional configuration for a longitudinal cross-section taken axially through the prosthesis in an expanded cross-sectional dimension thereof, the support features alternating extending between the inflow and outflow directions along a circumferential path corresponding to the radially inner contact surface, the support features being interconnected at first junctures at an axial extent of the inflow portion and being interconnected at second junctures at an axial extent of the outflow portion, each support feature being directly connected to only two other support features such that the support features collectively extend along the entire axial length of the fixation support member.
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19. A heart valve prosthesis comprising:
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a supported valve comprising a biological valve portion mounted within a support structure, the supported valve being configured to provide for substantially unidirectional flow of blood through the supported valve, the supported valve having inflow and outflow ends that are spaced axially apart from each other; and a fixation support member secured around an outer perimeter of the supported valve, the fixation support member comprising inflow and outflow portions, the inflow portion of the fixation support member extending from a radially inner contact surface of the fixation support member radially outwardly and axially in a direction of the inflow end of the supported valve, the outflow portion of the fixation support member extending from the radially inner contact surface radially outwardly and axially in a direction away from the inflow portion of the fixation support member, the inflow portion and outflow portion of the fixation support member having essentially the same length from the radially inner contact surface, wherein the radially inner contact surface is attached to a radially outer surface of the supported valve adjacent the inflow end of the supported valve, the supported valve and the fixation support member being deformable between a reduced cross-sectional dimension and an expanded cross-sectional dimension thereof, whereby implantation of the heart valve prosthesis is facilitated, wherein the fixation support member comprises an annular support formed from a plurality of support features and having one of a U-shaped or V-shaped cross-sectional configuration for a longitudinal cross-section taken axially through the prosthesis in its expanded cross-sectional dimension, the support features alternate extending between the inflow and outflow directions along a circumferential path corresponding to the radially inner contact surface, the support features being interconnected at first junctures at an axial extent of the inflow portion and being interconnected at second junctures at an axial extent of the outflow portion, each support feature being directly connected to only two other support features such that the support features collectively extend along the entire axial length of the fixation support member.
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Specification