Prosthetic mitral valve
First Claim
1. A prosthetic heart valve having an inflow end and an outflow end, comprising:
- a stent having a collapsed condition, an expanded condition, and a plurality of cells arranged in circumferential rows;
an anchor arm having a body portion and a free end extending from the body portion, the body portion of the anchor arm being coupled to a perimeter of one of the plurality of cells, and the free end extending toward the inflow end at a spaced distance radially outward from the body portion in an expanded condition of the anchor arm;
a valve assembly disposed within the stent and having a plurality of leaflets; and
a flange formed of a braided mesh and having a body portion coupled to the stent and a flared portion adjacent the inflow end of the prosthetic heart valve, the body portion of the flange being positioned closer to the outflow end of the stent than is a terminal edge of the flared portion in the expanded condition of the stent,wherein the one cell has a shape in the expanded condition of the stent and the body portion of the anchor arm has a shape in the expanded condition of the anchor arm that is substantially the same as the cell shape.
1 Assignment
0 Petitions
Accused Products
Abstract
A prosthetic heart valve having an inflow end and an outflow end includes a stent having a collapsed condition, an expanded condition, and a plurality of cells arranged in circumferential rows. The stent may include one or more securement features. One securement feature may be an anchor arm having a body portion and a free end extending from the body portion, the body portion being coupled to a perimeter of one of the plurality of cells, with the free end extending toward the inflow end in an expanded condition of the anchor arm. Another securement feature may include a flange formed of a braided mesh and having a body portion coupled to the stent and a flared portion adjacent the inflow end of the prosthetic heart valve. A valve assembly is disposed within the stent and has a plurality of leaflets.
269 Citations
18 Claims
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1. A prosthetic heart valve having an inflow end and an outflow end, comprising:
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a stent having a collapsed condition, an expanded condition, and a plurality of cells arranged in circumferential rows; an anchor arm having a body portion and a free end extending from the body portion, the body portion of the anchor arm being coupled to a perimeter of one of the plurality of cells, and the free end extending toward the inflow end at a spaced distance radially outward from the body portion in an expanded condition of the anchor arm; a valve assembly disposed within the stent and having a plurality of leaflets; and a flange formed of a braided mesh and having a body portion coupled to the stent and a flared portion adjacent the inflow end of the prosthetic heart valve, the body portion of the flange being positioned closer to the outflow end of the stent than is a terminal edge of the flared portion in the expanded condition of the stent, wherein the one cell has a shape in the expanded condition of the stent and the body portion of the anchor arm has a shape in the expanded condition of the anchor arm that is substantially the same as the cell shape. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A prosthetic heart valve having an inflow end and an outflow end, comprising:
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a stent having a collapsed condition, an expanded condition, and a plurality of cells arranged in circumferential rows; an anchor arm having a body portion and a free end extending from the body portion, the body portion of the anchor arm being coupled to a perimeter of one of the plurality of cells, and the free end extending toward the inflow end at a spaced distance radially outward from the body portion in an expanded condition of the anchor arm; a valve assembly disposed within the stent and having a plurality of leaflets, and a flange formed of a braided mesh and having a body portion coupled to the stent and a flared portion adjacent the inflow end of the prosthetic heart valve, wherein the flange includes a first braided mesh layer, a second braided mesh layer, and a layer of fabric between the first layer and the second layer wherein the plurality of cells includes an even number of cells arranged in a first circumferential row, four anchor arms being positioned in the first circumferential row so that a first pair of the anchor arms is symmetrical to a second pair of the anchor arms relative to a first plane bisecting the prosthetic heart valve, and a third pair of the anchor arms is symmetrical to a fourth pair of the anchor arms relative to a second plane orthogonal to the first plane. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification