Reduced profile prosthetic heart valve
First Claim
1. A prosthetic heart valve, comprising:
- a stent body including a plurality of cells arranged in circumferential rows, the plurality of cells including a first group of cells and a second group of cells, the stent body extending from an inflow end to an outflow end in a longitudinal direction;
a cuff sutured to the stent body;
at least one leaflet attachment panel sutured to the stent so that each cell in the first group of cells is at least partially covered by the at least one leaflet attachment panel and each cell in the second group of cells is fully uncovered by the at least one leaflet attachment panel, the at least one leaflet attachment panel being discontinuous with an adjacent leaflet attachment panel; and
at least one prosthetic valve element sutured to a single layer of the at least one leaflet attachment panel;
wherein the leaflet attachment panel is integral with none of the stent body, the cuff, and the prosthetic valve element;
wherein the cuff covers at least part of a luminal or abluminal surface of the stent body and a portion of the cuff is aligned with the at least one leaflet attachment panel in a radial direction transverse the longitudinal direction.
1 Assignment
0 Petitions
Accused Products
Abstract
A prosthetic heart valve may include a stent body with a plurality of cells arranged in circumferential rows and a cuff attached to the stent. A leaflet attachment panel may be attached to and span a portion of one of the cells. A prosthetic valve element, such as a leaflet having a belly, may be mounted to the leaflet attachment panel. The leaflet attachment panel may not be integral with the stent body. A reduced overlap area may be defined between a proximal end of the stent body and a proximalmost point of attachment of the leaflet belly to the cuff. The reduced overlap area may have a size dependent upon the circumferential row of cells the leaflet attachment panel is attached to and a position of the portion of the leaflet attachment panel to which the leaflet is mounted. Alternately, the leaflet may be attached directly to the stent.
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Citations
21 Claims
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1. A prosthetic heart valve, comprising:
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a stent body including a plurality of cells arranged in circumferential rows, the plurality of cells including a first group of cells and a second group of cells, the stent body extending from an inflow end to an outflow end in a longitudinal direction; a cuff sutured to the stent body; at least one leaflet attachment panel sutured to the stent so that each cell in the first group of cells is at least partially covered by the at least one leaflet attachment panel and each cell in the second group of cells is fully uncovered by the at least one leaflet attachment panel, the at least one leaflet attachment panel being discontinuous with an adjacent leaflet attachment panel; and at least one prosthetic valve element sutured to a single layer of the at least one leaflet attachment panel; wherein the leaflet attachment panel is integral with none of the stent body, the cuff, and the prosthetic valve element; wherein the cuff covers at least part of a luminal or abluminal surface of the stent body and a portion of the cuff is aligned with the at least one leaflet attachment panel in a radial direction transverse the longitudinal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20, 21)
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16. A prosthetic heart valve, comprising:
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a stent body extending in a longitudinal direction from an inflow end at a proximal end of the stent body to an outflow end at a distal end of the stent body, and including a plurality of cells arranged in a plurality of circumferential rows; a cuff sutured to the stent body and covering at least part of a luminal or abluminal surface of the stent body; a leaflet attachment panel sutured to at least one cell in one of the circumferential rows and spanning an entire area of only one cell; a leaflet sutured to a single layer of the leaflet attachment panel, the leaflet including a leaflet belly having a proximalmost point of attachment to the cuff; a reduced overlap area defined between the proximal end of the stent body and the proximalmost point of attachment of the leaflet belly to the cuff, the reduced overlap area having a size; wherein the size of the reduced overlap area is dependent upon (i) the circumferential row of cells the leaflet attachment panel is attached to and (ii) a position of the portion of the leaflet attachment panel to which the leaflet is mounted; wherein the leaflet attachment panel is integral with none of the stent body, the cuff and the leaflet, and a portion of the cuff is aligned with the leaflet attachment panel in a radial direction transverse the longitudinal direction. - View Dependent Claims (17, 18)
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19. A prosthetic heart valve, comprising:
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a stent body extending in a longitudinal direction from an inflow end at a proximal end of the stent body to an outflow end at a distal end of the stent body, the stent body being formed from a plurality of open cells arranged in circumferential rows; a cuff sutured to the stent body and covering at least part of a luminal or abluminal surface of the stent body; a leaflet attachment panel sutured to and overlying at least a portion of one of the open cells and spanning an entire area of only one cell, the leaflet attachment panel having a proximal end and a distal end; and a leaflet sutured to a single layer of the leaflet attachment panel between the proximal end and the distal end thereof, the leaflet including a leaflet belly having a proximalmost point of attachment to the cuff, wherein an area between the proximal end of the stent body and the proximalmost point of attachment of the leaflet belly to the cuff defines a reduced overlap area having a longitudinal length; wherein the longitudinal length of the reduced overlap area is dependent at least upon a location of attachment of the leaflet to the leaflet attachment panel between the proximal end and distal end thereof; and wherein the leaflet attachment panel is integral with none of the stent body, the cuff and the leaflet, and a portion of the cuff is aligned with the leaflet attachment panel in a radial direction transverse the longitudinal direction.
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Specification