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Replacement prosthetic heart valves and methods of implantation

  • US 9,504,568 B2
  • Filed: 02/15/2008
  • Issued: 11/29/2016
  • Est. Priority Date: 02/16/2007
  • Status: Active Grant
First Claim
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1. A replacement prosthetic heart valve for engagement with a structure of a previously implanted prosthetic heart valve, the replacement heart valve comprising:

  • a stent structure comprising;

    a generally tubular body portion comprising an interior area;

    exactly three upper vertical members that are spaced apart from each other around a perimeter of the body portion and that extend in a direction that is generally parallel to a longitudinal axis of the body portion and each comprising one of a generally U-shaped and a generally V-shaped structure;

    a plurality of lower vertical members that are spaced apart from each other around the perimeter of the body portion and that extend in a direction that is generally parallel to a longitudinal axis of the body portion and each comprising one of a generally U-shaped and a generally V-shaped structure;

    a plurality of upper flange portions extending radially outwardly from the body for positioning at an outflow end of the previously implanted prosthetic heart valve and each comprising one of a generally U-shaped and a generally V-shaped structure between opposing, first and second ends, wherein the plurality of upper flange portions includes a first upper flange portion, and further wherein the first end of the first upper flange portion is attached to a first one of the upper vertical members and the second end of the first upper flange portion is attached to a second one of the upper vertical members such that only a single one of the plurality of upper flange portions is located between the first and second ones of the exactly three upper vertical members, and further wherein continuous extension of the first upper flange portion from the first one of the upper vertical members to the second one of the upper vertical members defines a single tip having a tighter curvature as compared to all other regions of the first upper flange portion; and

    at least one lower flange portion for positioning at the inflow end of the previously implanted heart valve, wherein at least one of the lower flange portions is attached at both of its first and second ends to the tubular body portion, extends outwardly from the tubular body portion, and comprises one of a generally U-shaped and a generally V-shaped structure; and

    at least two leaflets attached within the interior area of the tubular body portion of the stent structure.

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