Stationary intra-annular halo designs for paravalvular leak (PVL) reduction—active channel filling cuff designs
First Claim
1. A prosthetic heart valve configured to be expanded in an annulus of a native aortic valve of a patient, the prosthetic heart valve comprising:
- a collapsible and expandable stent extending in a flow direction between a proximal end and a distal end, the stent including an annulus section adjacent the proximal end and a plurality of struts shaped to form a plurality of cells connected to one another in a plurality of annular rows around the stent, the flow direction being the direction from the proximal end toward the distal end;
a cuff attached to the annulus section of the stent and having an outer surface facing in radial directions orthogonal to the flow direction;
a plurality of prosthetic valve leaflets attached to the cuff; and
a plurality of sealing members each attached to the annulus section of the stent, each sealing member having a first end, a second end, an open side facing toward the distal end of the stent and a closed side facing toward the proximal end of the stent so that blood flowing in a direction opposite the flow direction will enter at least one of the sealing members through the open side and cause an outer surface of the at least one sealing member to move away from the outer surface of the cuff, each sealing member having a maximum width in a circumferential direction of the stent from the first end to the second end, the maximum width of each of the sealing members in a first group of the sealing members being greater than the maximum width of each of the sealing members in a second group of the sealing members.
1 Assignment
0 Petitions
Accused Products
Abstract
A prosthetic heart valve may include a collapsible and expandable stent extending in a flow direction between a proximal end and a distal end, a cuff attached to an annulus section of the stent and having an outer surface facing in a radial direction orthogonal to the flow direction, a plurality of prosthetic valve leaflets attached to the cuff, and a sealing structure attached to the annulus section of the stent at an inner edge of the sealing structure. The flow direction may be defined from the proximal end toward the distal end. The sealing structure may have an outer edge remote from the inner edge. The sealing structure may have a collapsed condition with the outer edge disposed adjacent the outer surface of the cuff and an expanded condition with the outer edge spaced apart from the outer surface of the cuff.
157 Citations
7 Claims
-
1. A prosthetic heart valve configured to be expanded in an annulus of a native aortic valve of a patient, the prosthetic heart valve comprising:
-
a collapsible and expandable stent extending in a flow direction between a proximal end and a distal end, the stent including an annulus section adjacent the proximal end and a plurality of struts shaped to form a plurality of cells connected to one another in a plurality of annular rows around the stent, the flow direction being the direction from the proximal end toward the distal end; a cuff attached to the annulus section of the stent and having an outer surface facing in radial directions orthogonal to the flow direction; a plurality of prosthetic valve leaflets attached to the cuff; and a plurality of sealing members each attached to the annulus section of the stent, each sealing member having a first end, a second end, an open side facing toward the distal end of the stent and a closed side facing toward the proximal end of the stent so that blood flowing in a direction opposite the flow direction will enter at least one of the sealing members through the open side and cause an outer surface of the at least one sealing member to move away from the outer surface of the cuff, each sealing member having a maximum width in a circumferential direction of the stent from the first end to the second end, the maximum width of each of the sealing members in a first group of the sealing members being greater than the maximum width of each of the sealing members in a second group of the sealing members. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
Specification