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 of placing an implant comprising a stent at a native heart valve site, the method comprising:
- orienting an expandable body of the stent such that a first open end of the stent is upstream a second open end of the stent relative to a direction of blood flow through a native heart valve, the native heart valve comprising native leaflets and an annulus;
radially expanding a plurality of positioning arches positioned around an outer perimeter of the expandable body;
inserting the plurality of positioning arches respectively within a plurality of pockets defined by the native leaflets and a heart structure from which the native leaflets extend; and
radially expanding the first open end of the stent into a position upstream of the annulus and out of contact with nerve bundles.
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Accused Products
Abstract
A method of placing an implant including a stent at a native heart valve site includes orienting an expandable body of the stent such that a first open end of the stent is upstream a second open end of the stent relative to a direction of blood flow through a native heart valve. The native heart valve includes native leaflets and an annulus. The method also includes radially expanding a plurality of positioning arches positioned around an outer perimeter of the expandable body. The method additionally includes inserting the plurality of positioning arches respectively within a plurality of pockets defined by leaflets of the native heart valve and a heart structure from which the native leaflets extend. The method further includes radially expanding the first open end of the stent into a position upstream of the annulus and out of contact with nerve bundles.
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Citations
20 Claims
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1. A method of placing an implant comprising a stent at a native heart valve site, the method comprising:
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orienting an expandable body of the stent such that a first open end of the stent is upstream a second open end of the stent relative to a direction of blood flow through a native heart valve, the native heart valve comprising native leaflets and an annulus; radially expanding a plurality of positioning arches positioned around an outer perimeter of the expandable body; inserting the plurality of positioning arches respectively within a plurality of pockets defined by the native leaflets and a heart structure from which the native leaflets extend; and radially expanding the first open end of the stent into a position upstream of the annulus and out of contact with nerve bundles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of placing an implant comprising a stent at a native heart valve site, the method comprising:
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orienting an expandable body of the stent such that a first stent segment of the stent is upstream of a second stent segment of the stent relative to a direction of blood flow through a native heart valve, the native heart valve comprising native leaflets and an annulus; aligning regions of the second stent segment having a first strut density with respective commissures of the native heart valve; and aligning regions of the second stent segment having a second strut density with respective cusps of the native heart valve, wherein the first strut density is different than the second strut density. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification