Commissure attachment features for improved delivery flexibility and tracking
First Claim
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1. A prosthetic heart valve, comprising:
- a collapsible and expandable stent having a proximal end and a distal end, the stent including a plurality of struts defining a plurality of open cells;
a plurality of commissure attachment features disposed on the stent, each commissure attachment feature including a body having a plurality of eyelets arranged in at least two rows and at least two columns, the body having a proximal edge, a distal edge, and two longitudinal edges connecting the proximal and distal edges, and including a slot extending from an open distal end coextensive with the distal edge of the body, between two of the columns of eyelets, and to a closed proximal end spaced apart from the proximal edge of the body, the slot dividing the body into a first portion and a second portion; and
a collapsible and expandable valve assembly including a plurality of leaflets connected to the plurality of commissure attachment features, the valve assembly being oriented to allow flow of blood within the stent toward the distal end of the stent and to substantially block the flow of blood within the stent toward the proximal end of the stent,wherein at least one of the struts is connected to the first portion of the body at the distal edge of the body and extends from the distal edge of the body toward the distal end of the stent, at least another of the struts is connected to the second portion of the body at the distal edge of the body and extends from the distal edge of the body toward the distal end of the stent, and at least one further one of the struts is connected to the proximal edge of the body.
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Abstract
A prosthetic heart valve includes a collapsible and expandable stent having a proximal end and a distal end. A plurality of commissure attachment features (“CAFs”) is disposed on the stent, with each CAF including a body and a plurality of eyelets. The eyelets may be arranged in a single column or in a plurality of rows and columns. The prosthetic heart valve also includes a collapsible and expandable valve assembly including a plurality of leaflets connected to the plurality of commissure attachment features. The bodies of the CAFs may include a number of other features including, for example, a slot extending between columns of eyelets.
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Citations
25 Claims
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1. A prosthetic heart valve, comprising:
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a collapsible and expandable stent having a proximal end and a distal end, the stent including a plurality of struts defining a plurality of open cells; a plurality of commissure attachment features disposed on the stent, each commissure attachment feature including a body having a plurality of eyelets arranged in at least two rows and at least two columns, the body having a proximal edge, a distal edge, and two longitudinal edges connecting the proximal and distal edges, and including a slot extending from an open distal end coextensive with the distal edge of the body, between two of the columns of eyelets, and to a closed proximal end spaced apart from the proximal edge of the body, the slot dividing the body into a first portion and a second portion; and a collapsible and expandable valve assembly including a plurality of leaflets connected to the plurality of commissure attachment features, the valve assembly being oriented to allow flow of blood within the stent toward the distal end of the stent and to substantially block the flow of blood within the stent toward the proximal end of the stent, wherein at least one of the struts is connected to the first portion of the body at the distal edge of the body and extends from the distal edge of the body toward the distal end of the stent, at least another of the struts is connected to the second portion of the body at the distal edge of the body and extends from the distal edge of the body toward the distal end of the stent, and at least one further one of the struts is connected to the proximal edge of the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification