Stent for the positioning and anchoring of a valvular prosthesis in an implantation site in the heart of a patient
First Claim
1. An expandable 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 a positioning arch of the plurality of positioning arches,wherein each retaining arch of the plurality of retaining arches includes arms having a plurality of notches distributed along a length of each arm.
8 Assignments
0 Petitions
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.
-
Citations
20 Claims
-
1. An expandable 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 a positioning arch of the plurality of positioning arches, wherein each retaining arch of the plurality of retaining arches includes arms having a plurality of notches distributed along a length of each arm. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. An expandable 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, each retaining arch of the plurality of retaining arches including arms having a plurality of fastening portions distributed along a length of each arm; a plurality of radial arches, each radial arch substantially circumferentially aligned with one of the plurality of positioning arches; and a supporting structure connected to the plurality of retaining arches, the supporting structure including at least one row of cells circumferentially disposed around a longitudinal axis of the stent; wherein a valve prosthesis is fixedly attached to the stent at the plurality of fastening portions. - View Dependent Claims (17, 18)
-
-
19. An expandable 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, each retaining arch of the plurality of retaining arches including arms having a plurality of notches distributed along a length of each arm and on opposite sides of each arm; and a supporting structure connected to the plurality of retaining arches, the supporting structure including at least one row of cells circumferentially disposed around a longitudinal axis of the stent; wherein each retaining arch corresponds to a complementary positioning arch to clip a native heart valve leaflet between the retaining arch and positioning arch. - View Dependent Claims (20)
-
Specification