Sequentially deployed transcatheter mitral valve prosthesis
First Claim
1. A sequentially deployed prosthetic cardiac valve system, said system comprising:
- an outer sheath;
a self-expanding frame disposed at least partially in the outer sheath, the self-expanding frame comprising a first end, a second end opposite the first end, an atrial region near the second end, and a ventricular region near the first end,wherein the self-expanding frame has an expanded configuration and a collapsed configuration, the expanded configuration adapted to engage heart tissue, and the collapsed configuration adapted to be delivered to a patient'"'"'s heart;
a self-expanding atrial skirt disposed in the atrial region;
a self-expanding ventricular skirt disposed in the ventricular region, the self-expanding ventricular skirt having struts with a length;
a self-expanding annular region disposed between the atrial region and the ventricular region;
a first self-expanding anterior tab disposed on an anterior portion of the self-expanding frame in the ventricular region, the first self-expanding anterior tab having struts with a length shorter than the length of the struts in the ventricular skirt; and
a self-expanding posterior tab on a posterior portion of the self-expanding frame in the ventricular region, the self-expanding posterior tab having struts with a length longer than the length of the struts in the ventricular skirt,wherein a portion of the first self-expanding anterior tab and a portion of the self-expanding posterior tab begin partially self-expanding concurrently and radially outward when the sheath is partially removed therefrom, andwherein the first anterior tab fully self-expands radially outward when the sheath is completely removed therefrom, and the first anterior tab fully self-expands before the posterior tab fully expands, andwherein the first anterior tab fully self-expands before the ventricular skirt fully self-expands radially outward.
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Accused Products
Abstract
A sequentially deployed prosthetic cardiac valve includes a self-expanding frame having an atrial skirt, a ventricular skirt, and an annular region disposed therebetween. A first anterior tab is disposed on an anterior portion of the frame. A posterior tab is on a posterior portion of the self-expanding frame. The frame may be designed so that any portion may expand sequentially in any desired order. For example, a portion of the first anterior tab and a portion of the posterior tab may partially self-expand first. Next, the first anterior tab may fully self-expand before the posterior tab fully self-expands. The posterior tab may fully self-expand next followed by the ventricular skirt, or the ventricular skirt may self-expand next followed by full expansion of the posterior tab.
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Citations
32 Claims
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1. A sequentially deployed prosthetic cardiac valve system, said system comprising:
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an outer sheath; a self-expanding frame disposed at least partially in the outer sheath, the self-expanding frame comprising a first end, a second end opposite the first end, an atrial region near the second end, and a ventricular region near the first end, wherein the self-expanding frame has an expanded configuration and a collapsed configuration, the expanded configuration adapted to engage heart tissue, and the collapsed configuration adapted to be delivered to a patient'"'"'s heart; a self-expanding atrial skirt disposed in the atrial region; a self-expanding ventricular skirt disposed in the ventricular region, the self-expanding ventricular skirt having struts with a length; a self-expanding annular region disposed between the atrial region and the ventricular region; a first self-expanding anterior tab disposed on an anterior portion of the self-expanding frame in the ventricular region, the first self-expanding anterior tab having struts with a length shorter than the length of the struts in the ventricular skirt; and a self-expanding posterior tab on a posterior portion of the self-expanding frame in the ventricular region, the self-expanding posterior tab having struts with a length longer than the length of the struts in the ventricular skirt, wherein a portion of the first self-expanding anterior tab and a portion of the self-expanding posterior tab begin partially self-expanding concurrently and radially outward when the sheath is partially removed therefrom, and wherein the first anterior tab fully self-expands radially outward when the sheath is completely removed therefrom, and the first anterior tab fully self-expands before the posterior tab fully expands, and wherein the first anterior tab fully self-expands before the ventricular skirt fully self-expands radially outward. - 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, 26, 27, 28, 29, 30, 31, 32)
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Specification