Self-expandable heart valve with stabilizers
First Claim
1. A prosthetic aortic heart valve, comprising:
- three bioprosthetic leaflets made from pericardium, each leaflet having an arcuate outer edge opposite a coapting edge and two tabs on opposite sides of the coapting edge that project laterally beyond the outer edge;
a self-expandable tubular leaflet support frame arranged around a flow axis, the leaflet support frame defining three commissures distributed 120°
apart around the flow axis, wherein each commissure comprises two axially-extending attachment flanges, each including a plurality of assembly holes through which sutures are passed to secure the leaflet tabs to the attachment flanges; and
three outwardly flared U-shaped stabilizing members integrally formed with the leaflet support frame having outer apices distributed 120°
apart around the flow axis offset 60°
from the three commissures that contact the surrounding aorta and help stabilize and anchor the heart valve in its implant position.
2 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic heart valve includes three bioprosthetic leaflets, each having an arcuate outer edge opposite a coapting edge and two tabs located on opposite sides of the coapting edge. The prosthetic heart valve also includes a self-expandable support frame defining three commissures spaced 120 degrees apart. Each commissure preferably includes two axially-extending attachment flanges with an axial slot therebetween. Each attachment flange includes a plurality of assembly holes through which sutures are passed to secure the leaflet tabs to the attachment flanges. The prosthetic heart valve also includes three outwardly flared U-shaped stabilizing members integrally formed with the leaflet support frame. The three stabilizing members having outer apices spaced 120 degrees apart and offset by 60 degrees from the three commissures. The stabilizing members are shaped to contact the surrounding aorta for stabilizing and anchoring the prosthetic heart valve in the implant position.
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Citations
20 Claims
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1. A prosthetic aortic heart valve, comprising:
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three bioprosthetic leaflets made from pericardium, each leaflet having an arcuate outer edge opposite a coapting edge and two tabs on opposite sides of the coapting edge that project laterally beyond the outer edge; a self-expandable tubular leaflet support frame arranged around a flow axis, the leaflet support frame defining three commissures distributed 120°
apart around the flow axis, wherein each commissure comprises two axially-extending attachment flanges, each including a plurality of assembly holes through which sutures are passed to secure the leaflet tabs to the attachment flanges; andthree outwardly flared U-shaped stabilizing members integrally formed with the leaflet support frame having outer apices distributed 120°
apart around the flow axis offset 60°
from the three commissures that contact the surrounding aorta and help stabilize and anchor the heart valve in its implant position. - View Dependent Claims (2, 3, 4, 5, 6, 18, 19, 20)
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7. A prosthetic aortic heart valve, comprising:
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three bioprosthetic leaflets made from pericardium, each leaflet having an arcuate outer edge opposite a coapting edge and two tabs on opposite sides of the coapting edge that project laterally beyond the outer edge; a self-expandable tubular leaflet support frame arranged around a flow axis, the leaflet support frame defining three commissures distributed 120°
apart around the flow axis, wherein one tab each of two adjacent leaflets are secured to each commissure by passing through an axial slot in the commissure, the commissure having a plurality of assembly holes therein;a fabric covering on the leaflet support frame to which the arcuate outer edge of each leaflet secures; a panel of fabric separate from the fabric covering secured outside of each commissure, wherein the leaflet tabs are secured to the commissures via sutures passed through the panel, the leaflets and the assembly holes in the commissures; and three outwardly angled stabilizing members integrally formed with the leaflet support frame having outer ends distributed 120°
apart around the flow axis offset 60°
from the three commissures that contact the surrounding aorta and help stabilize and anchor the heart valve in its implant position. - View Dependent Claims (8, 9, 10)
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11. A prosthetic aortic heart valve, comprising:
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a valve member defined by three bioprosthetic leaflets; a self-expandable nitinol leaflet support frame arranged around a flow axis, the leaflet support frame defining three commissures distributed 120°
apart around the flow axis, wherein each commissure comprises two spaced attachment flanges that each have a plurality of assembly holes formed therein, wherein the leaflets are secured inside the support frame by sutures extending through the assembly holes of the attachment flanges to define a one-way valve that permits flow through the support frame in an outflow direction; andthree outwardly angled nitinol stabilizing members integrally formed with the leaflet support frame defined by thin struts connected at two points to the support frame extending in the outflow direction to outer apices distributed 120°
apart around the flow axis offset 60°
from the three commissures that contact the surrounding aorta and help stabilize and anchor the heart valve in its implant position. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification