STENT WITH ALTERNATIVE CELL SHAPES
First Claim
1. A stent for use with a prosthetic heart valve for replacement of a native valve, the stent comprising:
- an expandable stent body having a collapsed configuration, an expanded configuration, an inflow end, an outflow end, and an annulus section at the inflow end;
at least one circumferential row of cells defined by struts of the stent body, the at least one row of cells including a first cell, a second cell, and a third cell, the second cell being positioned between the first and third cells;
wherein a distal edge of the annulus section is defined by a series of at least three struts, a first one of the struts defining a portion of the first cell, a second one of the struts defining a portion of the second cell, and a third one of the struts defining a portion of the third cell;
wherein each point on the second one of the struts is nearer, or equally near, the inflow end compared to each point on the first one of the struts and the third one of the struts.
1 Assignment
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Accused Products
Abstract
A stent for use with a prosthetic heart valve for replacement of a native valve includes an expandable stent body having a collapsed configuration and an expanded configuration, with an annulus section at an inflow end of the stent body and an aortic section at an outflow end. A plurality of commissure attachment features are positioned circumferentially around the stent body. A distal edge of the annulus section is generally parabolic and extends from one of the commissure attachment features to an adjacent one of the commissure attachment features, with the middle of the parabola being closest to the inflow end of the stent body.
10 Citations
25 Claims
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1. A stent for use with a prosthetic heart valve for replacement of a native valve, the stent comprising:
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an expandable stent body having a collapsed configuration, an expanded configuration, an inflow end, an outflow end, and an annulus section at the inflow end; at least one circumferential row of cells defined by struts of the stent body, the at least one row of cells including a first cell, a second cell, and a third cell, the second cell being positioned between the first and third cells; wherein a distal edge of the annulus section is defined by a series of at least three struts, a first one of the struts defining a portion of the first cell, a second one of the struts defining a portion of the second cell, and a third one of the struts defining a portion of the third cell; wherein each point on the second one of the struts is nearer, or equally near, the inflow end compared to each point on the first one of the struts and the third one of the struts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A stent for use with a prosthetic heart valve for replacement of a native valve, the stent comprising:
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an expandable stent body having a collapsed configuration and an expanded configuration; an annulus section at an inflow end of the stent body; an aortic section at an outflow end of the stent body; and a plurality of commissure attachment features positioned circumferentially around the stent body, wherein a distal edge of the annulus section is generally parabolic and extends from one of the commissure attachment features to another of the commissure attachment features. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification