Implantable patch prosthesis having one or more cusps for improved competency and method for using same
First Claim
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1. A cardiac patch prosthesis, comprising:
- at least one cusp extending from a length of an associated valve wall; and
an elongated sheet of biocompatible material, the valve wall being attached to the elongated sheet, such that a portion of the elongated sheet extends beyond an inflow end of the cusp.
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Abstract
A patch prosthesis includes at least one cusp extending from a length of an associated valve wall. An elongated sheet of biocompatible material is attached to the valve wall, such that a portion of the elongated sheet extends beyond an inflow end of the cusp. A measurement system may be employed to measure the size of a patient'"'"'s native cusp(s), which measurement may be utilized to select a patch prosthesis having an appropriately sized cusp.
25 Citations
26 Claims
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1. A cardiac patch prosthesis, comprising:
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at least one cusp extending from a length of an associated valve wall; and
an elongated sheet of biocompatible material, the valve wall being attached to the elongated sheet, such that a portion of the elongated sheet extends beyond an inflow end of the cusp. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A repair system, comprising:
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a patch prosthesis including an elongated sheet of a biocompatible flexible material and at least one cusp extending outwardly from and moveable relative to the elongated sheet; and
a measurement system including at least two sizing tools, each of the sizing tools having a generally spherical end portion insertable into and adapted to measure size of a cusp, the end portions of the sizing tools being configured to engage each other and provide a generally cylindrical structure having a generally circular cross-section having a predetermined diameter. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 19)
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17. A cardiac patch prosthesis, comprising:
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an elongated sheet of a flexible, biocompatible material;
flexible cup-shaped means attached to and extending from an associated valve wall for moving between open and closed conditions relative to the valve wall; and
means for connecting the cup-shaped means and valve wall relative to the elongated sheet.
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18. A measurement system to facilitate repair of a heart valve, comprising:
at least two sizing tools, each of the sizing tools having a generally spherical end portion and a handle extending therefrom, each end portion being insertable into and dimensioned to measure size of a cusp, the end portions of the sizing tools being configured to engage each other and form a generally cylindrical structure having a generally circular cross-section having a predetermined diameter.
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20. A method to facilitate repair of a heart valve comprising:
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inserting at a first sizing tool into a native cusp of the heart valve to measure the size of the native cusp;
inserting at least a second sizing tool into a cusp of a patch prosthesis to measure the size of the cusp of the patch relative to the size of the native cusp, the first and second sizing tools having end portions configured to engage each other and form a generally cylindrical structure having a generally circular cross-section having a predetermined diameter approximating a cross-sectional diameter of the heart valve. - View Dependent Claims (21, 22, 23, 24, 26)
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25. A method of forming a patch prosthesis, comprising:
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excising a heart valve from an animal, the heart valve having at least two cusps extending from an interior of a valve wall;
fixing the valve in a fixation solution;
opening the valve by cutting axially through the valve wall thereof;
removing a section of the valve wall from the opened valve, which section includes at least one cusp, to form an assembly that includes least one cusp and a length of associated valve wall;
attaching the valve wall of the assembly to an elongated sheet of a biocompatible material, a portion of the elongated sheet extending beyond an inflow end of the cusp.
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Specification