Heart valve annuloplasty prosthesis sewing cuffs and methods of making same
First Claim
Patent Images
1. An annuloplasty prosthesis for a heart valve comprising:
- an annular core having an outer surface;
a fabric having a first free end, a second free end, an inner surface on a first side of the fabric, an outer surface on a second side of the fabric opposite the first side, a first portion wrapped around the outer surface of the annular core so that the first side of the first portion faces toward the annular core and the second side of the first portion faces away from the annular core, and an end portion extending a distance from the first free end, the end portion being folded over on itself at least once against the second side of the fabric to form a sewing cuff having a folded portion extending radially outward from the annular core, the second free end being connected to the first side of the fabric so that the second free end is spaced from the first free end and so that the folded portion and the second free end are positioned on opposite sides of the fabric; and
a polymer layer arranged at least partially around the outer surface of the annular core and disposed between the annular core and the first portion of the fabric.
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Abstract
An annuloplasty prosthesis for a heart valve has a sewing cuff added to the conventional structure. The sewing cuff is preferably an extension of the fabric cover that is provided around the core of the prosthesis. The sewing cuff preferably extends radially outwardly from cross sections of the remainder of the prosthesis. Methods of making such a sewing cuff are also disclosed.
72 Citations
11 Claims
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1. An annuloplasty prosthesis for a heart valve comprising:
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an annular core having an outer surface; a fabric having a first free end, a second free end, an inner surface on a first side of the fabric, an outer surface on a second side of the fabric opposite the first side, a first portion wrapped around the outer surface of the annular core so that the first side of the first portion faces toward the annular core and the second side of the first portion faces away from the annular core, and an end portion extending a distance from the first free end, the end portion being folded over on itself at least once against the second side of the fabric to form a sewing cuff having a folded portion extending radially outward from the annular core, the second free end being connected to the first side of the fabric so that the second free end is spaced from the first free end and so that the folded portion and the second free end are positioned on opposite sides of the fabric; and a polymer layer arranged at least partially around the outer surface of the annular core and disposed between the annular core and the first portion of the fabric. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An annuloplasty prosthesis for a heart valve comprising:
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an annular core having an outer surface; a fabric having an inner surface on a first side of the fabric, an outer surface on a second side of the fabric opposite the first side, and first and second free ends, the fabric being wrapped around the outer surface of the annular core so that the first side of a first portion of the fabric faces toward the annular core and the second side of the first portion of the fabric faces away from the annular core, the fabric extending from the second free end at least one complete revolution around the annular core to a connection point spaced from the first free end, the entirety of the first portion of the fabric between the second free end and the connection point being firmly wrapped around the outer surface of the annular core, the fabric being folded over itself at least once against the second side of the fabric between the connection point and the first free end to form a sewing cuff having a folded portion extending radially outward from the annular core, the second free end being connected to the fabric at the connection point so that the second free end is spaced from the first free end and so that the folded portion and the second free end are positioned on opposite sides of the fabric; and a polymer layer arranged at least partially around the outer surface of the annular core and disposed between the annular core and the first portion of the fabric. - View Dependent Claims (11)
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Specification