Heart valve with stent having varying cell densities
First Claim
1. A prosthetic heart valve for replacing a native valve, comprising:
- a collapsible and expandable stent extending between a proximal end and a distal end, the stent including an annulus section adjacent the proximal end, the annulus section having cells arranged in at least one annulus row, each said annulus row having a same first number of cells, the first number defining a first cell density of twelve cells per row, and an aortic section adjacent the distal end, the aortic section having cells arranged in at least one aortic row, each said aortic row having a same second number of cells, the second number defining a second cell density of nine cells per row; and
a valve assembly disposed within the stent,wherein each cell in the at least one aortic row is directly coupled to a circumferentially adjacent cell in the at least one aortic row.
1 Assignment
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Accused Products
Abstract
A prosthetic heart valve for replacing a native valve includes a collapsible and expandable stent extending between a proximal end and a distal end, the stent including an annulus section adjacent the proximal end and an aortic section adjacent the distal end. The annulus section has cells arranged in at least one annulus row, each annulus row having a same first number of cells, the first number defining a first cell density. The aortic section has cells arranged in at least one aortic row, each aortic row having a same second number of cells, the second number defining a second cell density, the first cell density and the second cell density being different. A valve assembly is disposed within the stent.
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Citations
15 Claims
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1. A prosthetic heart valve for replacing a native valve, comprising:
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a collapsible and expandable stent extending between a proximal end and a distal end, the stent including an annulus section adjacent the proximal end, the annulus section having cells arranged in at least one annulus row, each said annulus row having a same first number of cells, the first number defining a first cell density of twelve cells per row, and an aortic section adjacent the distal end, the aortic section having cells arranged in at least one aortic row, each said aortic row having a same second number of cells, the second number defining a second cell density of nine cells per row; and a valve assembly disposed within the stent, wherein each cell in the at least one aortic row is directly coupled to a circumferentially adjacent cell in the at least one aortic row. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A collapsible and expandable stent for a prosthetic heart valve, the stent having a proximal end and a distal end, and the stent comprising:
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an annulus section adjacent the proximal end, the annulus section having cells arranged in at least one annulus row, each said annulus row having a same first number of cells, the first number defining a first cell density; an aortic section adjacent the distal end, the aortic section having cells arranged in at least one aortic row, each said aortic row having a same second number of cells, the second number defining a second cell density, the first cell density and the second cell density being different; and a transition section disposed between the annulus section and the aortic section, the transition section having cells arranged in at least one transition row, the number of cells per transition row defining a third cell density that is different from the first cell density and the second cell density, wherein each cell in the at least one aortic row is directly coupled to a circumferentially adjacent cell in the at least one aortic row, wherein the first cell density is greater than the second cell density. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification