Endoprosthesis for implantation in the heart of a patient
First Claim
1. An endoprosthesis, comprising:
- a stent comprising;
an annular skirt portion comprising a plurality of closed cells extending around a circumference of the stent and disposed at a first end of the stent;
a plurality of first arches each having an apex pointing toward the first end of the stent, the plurality of first arches configured to be disposed within sinus pockets of a native valve radially outward of leaflets of the native valve;
a plurality of arms each having a first end joined to a first end of an adjacent arm and a second end joined to the annular skirt portion, each first arch being positioned between two arms of the plurality of arms, and the plurality of arms being configured to be disposed radially inward of the leaflets of the native valve; and
a plurality of second arches each having an apex pointing toward a second end of the stent, each apex of a second arch of the plurality of arches being axially aligned, along a longitudinal direction of the stent, with an apex of a corresponding first arch of the plurality of first arches; and
a heart valve prosthesis attached to the stent.
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Accused Products
Abstract
The present invention relates to a stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient. Specifically, the present invention relates to an expandable stent for an endoprosthesis used in the treatment of a narrowing of a cardiac valve and/or a cardiac valve insufficiency. So as to ensure that no longitudinal displacement of a valvular prosthesis fastened to a stent will occur relative the stent in the implanted state of the stent, even given the peristaltic motion of the heart, the stent according to the invention comprises at least one fastening portion via which the valvular prosthesis is connectable to the stent. The stent further comprises positioning arches and retaining arches, whereby at least one positioning arch is connected to at least one retaining arch via a first connecting web. The stent moreover comprises at least one auxiliary retaining arch which connects the respective arms of the at least one retaining arch connected to the at least one positioning arch.
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Citations
20 Claims
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1. An endoprosthesis, comprising:
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a stent comprising; an annular skirt portion comprising a plurality of closed cells extending around a circumference of the stent and disposed at a first end of the stent; a plurality of first arches each having an apex pointing toward the first end of the stent, the plurality of first arches configured to be disposed within sinus pockets of a native valve radially outward of leaflets of the native valve; a plurality of arms each having a first end joined to a first end of an adjacent arm and a second end joined to the annular skirt portion, each first arch being positioned between two arms of the plurality of arms, and the plurality of arms being configured to be disposed radially inward of the leaflets of the native valve; and a plurality of second arches each having an apex pointing toward a second end of the stent, each apex of a second arch of the plurality of arches being axially aligned, along a longitudinal direction of the stent, with an apex of a corresponding first arch of the plurality of first arches; and a heart valve prosthesis attached to the stent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An endoprosthesis, comprising:
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a stent comprising; an annular skirt portion comprising a plurality of closed cells extending around a circumference of the stent and disposed at a first end of the stent; a plurality of first arches each having an apex pointing toward the first end of the stent, the plurality of first arches configured to be disposed within respective sinus pockets of a native valve radially outward of leaflets of the native valve; a plurality of arms each having a first end joined to a first end of an adjacent arm and a second end joined to the annular skirt portion, each first arch being positioned between two arms of the plurality of arms, and the plurality of arms being configured to be disposed radially inward of the leaflets of the native valve; a plurality of second arches each having an apex pointing toward a second end of the stent, the plurality of second arches being joined to the plurality of first arches; and a plurality of commissure posts; and a heart valve prosthesis attached to the plurality of commissure posts. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An endoprosthesis, comprising:
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a stent comprising; an annular skirt portion comprising a plurality of closed cells extending around a circumference of the stent and disposed at a first end of the stent; a plurality of first arches each having an apex pointing toward the first end of the stent, the plurality of first arches configured to be disposed within respective sinus pockets of a native valve radially outward of leaflets of the native valve; a plurality of arms each having a first end joined to a first end of an adjacent arm and a second end joined to the annular skirt portion, the plurality of arms being configured to be disposed radially inward of the leaflets of the native valve; and a plurality of second arches each having an apex pointing toward a second end of the stent, each first arch being joined to a corresponding second arch to define a closed cell between the apex of the first arch and the apex of the corresponding second arch; and a heart valve prosthesis attached to the stent. - View Dependent Claims (17, 18, 19, 20)
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Specification