INJECTABLE HEART VALVE PROSTHESIS FOR LOW-INVASIVE IMPLANTATION
First Claim
1. A heart valve prosthesis comprising:
- a cylindrical support extending between axially spaced apart ends thereof, the cylindrical support including a plurality of support features extend generally axially between the axially spaced apart ends of the cylindrical support, adjacent pairs of the support features being interconnected so as to bias the cylindrical support radially outwardly; and
a valve mounted within the cylindrical support to define a supported valve, the supported valve comprising;
a sidewall portion extending between inflow and outflow ends thereof, the inflow and outflow ends of the valve sidewall portion being mounted within the cylindrical support such that ends of the sidewall portion are spaced axially apart from the spaced apart ends of the cylindrical support; and
a valve portion residing within the sidewall portion and configured to provide for substantially unidirectional flow of blood through the supported valve, the supported valve being deformable between a reduced cross-sectional condition and an expanded cross-sectional condition, whereby implantation of the supported valve is facilitated when in the reduced cross-sectional condition.
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Abstract
A heart valve prosthesis may include a cylindrical support extending between axially spaced apart ends thereof, the cylindrical support including a plurality of support features extend generally axially between the opposed ends of the support, adjacent pairs of the support features being interconnected so as to bias the cylindrical support radially outwardly. A valve is mounted within the support to define a supported valve. The supported valve can include a sidewall portion extending between inflow and outflow ends thereof, the inflow and outflow ends of the valve sidewall portion being mounted within the cylindrical support such that ends of the sidewall portion are spaced axially apart from the spaced apart ends of the cylindrical support. The supported valve can also include a valve portion residing within the sidewall portion and configured to provide for substantially unidirectional flow of blood through the supported valve, the supported valve being deformable between a reduced cross-sectional condition and an expanded cross-sectional condition, whereby implantation of the supported valve is facilitated when in the reduced cross-sectional condition.
147 Citations
19 Claims
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1. A heart valve prosthesis comprising:
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a cylindrical support extending between axially spaced apart ends thereof, the cylindrical support including a plurality of support features extend generally axially between the axially spaced apart ends of the cylindrical support, adjacent pairs of the support features being interconnected so as to bias the cylindrical support radially outwardly; and a valve mounted within the cylindrical support to define a supported valve, the supported valve comprising; a sidewall portion extending between inflow and outflow ends thereof, the inflow and outflow ends of the valve sidewall portion being mounted within the cylindrical support such that ends of the sidewall portion are spaced axially apart from the spaced apart ends of the cylindrical support; and a valve portion residing within the sidewall portion and configured to provide for substantially unidirectional flow of blood through the supported valve, the supported valve being deformable between a reduced cross-sectional condition and an expanded cross-sectional condition, whereby implantation of the supported valve is facilitated when in the reduced cross-sectional condition. - 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. A heart valve prosthesis comprising:
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a cylindrical support extending between axially spaced apart inflow and outflow ends thereof, the cylindrical support including a plurality of support features extend generally axially between the axially spaced apart inflow and outflow ends of the cylindrical support, adjacent pairs of the support features being interconnected so as to bias the cylindrical support radially outwardly; and a valve mounted within the cylindrical support to define a supported valve, the supported valve being configured to provide for substantially unidirectional flow of blood through the supported valve, the valve having inflow and outflow ends that are spaced axially apart from the respective inflow and outflow ends of the cylindrical support, the supported valve being deformable between a reduced cross-sectional condition and an expanded cross-sectional condition, wherein, in the expanded cross-sectional condition, a cross-sectional dimension of the cylindrical support at an axial position between an outflow end of the valve and an outflow end of the cylindrical support is less than a cross-sectional dimension of the cylindrical support and the valve at an axial position where the valve resides. 20. The prosthesis of claim 19 in combination with an implanter, the combination comprising; the implanter comprising; a body portion; and an elongated cylindrical member extending from the body portion to terminate in a distal end thereof that is spaced apart from the body portion, the distal end having an opening to a passage that extends through at least a portion of the cylindrical member, at least a distal end portion of the cylindrical member proximal the distal end thereof being flexible to permit flexing or bending of the distal end portion; and the prosthesis being mounted within the cylindrical member in the reduced cross-sectional condition.
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Specification