Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
First Claim
1. A method for treating a native cardiac valve, the method comprising:
- positioning a stent within a native cardiac valve, the stent comprisinga plurality of first arches, each first arch having a closed end portion and an open end portion, the closed end portion pointing in a proximal direction and the open end portion open to a distal end portion of the stent;
a plurality of second arches, each second arch having a closed end portion and an open end portion, the closed end portion of each second arch pointing in the proximal direction, wherein each second arch is circumferentially aligned with and attached to a respective first arch,a plurality of third arches, each third arch having a closed end portion and an open end portion, the closed end portion of each third arch pointing in the proximal direction, and each third arch circumferentially interspaced between two adjacent second arches, anda valvular prosthesis attached to the plurality of second arches.
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0 Petitions
Accused Products
Abstract
The present invention relates to a stent (10) for the positioning and anchoring of a valvular prosthesis (100) 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 (100) fastened to a stent (10) will occur relative the stent (10) in the implanted state of the stent (10), even given the peristaltic motion of the heart, the stent (10) according to the invention comprises at least one fastening portion (11) via which the valvular prosthesis (100) is connectable to the stent (10). The stent (10) further comprises positioning arches (15) and retaining arches (16), whereby at least one positioning arch (15) is connected to at least one retaining arch (16) via a first connecting land (17). The stent (10) moreover comprises at least one auxiliary retaining arch (18) which connects the respective arms (16′, 16″) of the at least one retaining arch (16) connected to the at least one positioning arch (15).
271 Citations
21 Claims
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1. A method for treating a native cardiac valve, the method comprising:
positioning a stent within a native cardiac valve, the stent comprising a plurality of first arches, each first arch having a closed end portion and an open end portion, the closed end portion pointing in a proximal direction and the open end portion open to a distal end portion of the stent; a plurality of second arches, each second arch having a closed end portion and an open end portion, the closed end portion of each second arch pointing in the proximal direction, wherein each second arch is circumferentially aligned with and attached to a respective first arch, a plurality of third arches, each third arch having a closed end portion and an open end portion, the closed end portion of each third arch pointing in the proximal direction, and each third arch circumferentially interspaced between two adjacent second arches, and a valvular prosthesis attached to the plurality of second arches. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for treating a native cardiac valve, the method comprising:
positioning a stent in a native cardiac valve having a plurality of native valve leaflets, the stent comprising a plurality of first arches, each arch having an apex pointing towards a proximal end of the stent and an open end facing a distal end of the stent, a plurality of second arches, each second arch having an apex circumferentially aligned with a respective first arch, the apex of each second arch pointing towards the proximal end of the stent, a plurality of third arches, each third arch circumferentially interspaced between two adjacent second arches, each third arch having an apex pointing towards the proximal end of the stent, and a valvular prosthesis attached to the plurality of second arches; wherein positioning the stent in the native cardiac valve includes positioning each of the plurality of first arches in a corresponding pocket of the native cardiac valve. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method for treating a native cardiac valve, the method comprising:
positioning a stent in a native cardiac valve, the stent comprising a plurality of first arches, a plurality of second arches, each second arch circumferentially aligned with and radially offset from a respective first arch, a plurality of third arches, each third arch circumferentially interspaced between two adjacent second arches, and a valvular prosthesis attached to the plurality of second arches; wherein each of the plurality of first arches, the plurality of second arches, and the plurality of third arches includes an open end portion and a closed end portion, each closed end portion pointing towards a heart chamber when the stent is positioned in the cardiac valve; and wherein positioning the stent in the native cardiac valve includes positioning each of a plurality of leaflets of the native cardiac valve radially between one of the plurality of first arches and each respective second arch. - View Dependent Claims (17, 18, 19, 20, 21)
Specification