Stent for the positioning and anchoring of a valvular prosthesis
First Claim
1. An expandable stent for the positioning and anchoring of a valvular prosthesis in an implantation site, the stent comprising:
- a plurality of positioning arches configured to be positioned within a plurality of pockets of a native heart valve and positioned on a first side of a plurality of native heart valve leaflets, a plurality of retaining arches configured to be positioned on a second side of the plurality of native heart valve leaflets opposite the first side, and a plurality of radial arches, each radial arch substantially circumferentially aligned with one of the plurality of positioning arches, wherein respective arms of each of the plurality of retaining arches include a plurality of bending edges, each of the plurality of bending edges defining a bending point between two adjacent arm segments.
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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.
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Citations
23 Claims
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1. An expandable stent for the positioning and anchoring of a valvular prosthesis in an implantation site, the stent comprising:
- a plurality of positioning arches configured to be positioned within a plurality of pockets of a native heart valve and positioned on a first side of a plurality of native heart valve leaflets, a plurality of retaining arches configured to be positioned on a second side of the plurality of native heart valve leaflets opposite the first side, and a plurality of radial arches, each radial arch substantially circumferentially aligned with one of the plurality of positioning arches, wherein respective arms of each of the plurality of retaining arches include a plurality of bending edges, each of the plurality of bending edges defining a bending point between two adjacent arm segments.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An expandable stent for the positioning and anchoring of a valvular prosthesis in an implantation site, the stent comprising:
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a plurality of positioning arches configured to be positioned within a plurality of pockets of a native heart valve and positioned on a first side of a plurality of native heart valve leaflets, wherein each of the plurality of positioning arches includes first and second arms joined to one another at a head portion; a plurality of retaining arches configured to be positioned on a second side of the plurality of native heart valve leaflets opposite the first side, wherein respective arms of each of the plurality of retaining arches include a plurality of bending edges, each of the plurality of bending edges defining a bending point between two adjacent arm segments and a plurality of leaflet guard arches, each leaflet guard arch interspaced between the two arms of one of the plurality of positioning arches and including a first arm and a second arm, wherein the first and second arms of each of the plurality of leaflet guard arches are joined to one another at a head portion. - View Dependent Claims (19, 20)
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21. An expandable stent for the positioning and anchoring of a valvular prosthesis in an implantation site, the stent comprising:
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a plurality of positioning arches configured to be positioned within a plurality of pockets of a native heart valve and positioned on a first side of a plurality of native heart valve leaflets; a plurality of retaining arches configured to be positioned on a second side of the plurality of native heart valve leaflets opposite the first side, wherein respective arms of each of the plurality of retaining arches include a plurality of bending edges, each of the plurality of bending edges defining a bending point between two adjacent arm segments and at least one annular collar connected to each of the respective retaining arches. - View Dependent Claims (22, 23)
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Specification