Prosthetic heart valve and method
First Claim
1. A prosthetic heart valve, comprising:
- a radially collapsible and expandable annular support frame;
three pairs of parallel support bars, each pair of parallel support bars mounted radially inwardly of the support frame, each support bar provided with a plurality of preformed bores; and
a valve assembly comprising three pericardial leaflets, the valve assembly anchored within the support frame at least in part by stitching that extends through the pericardial leaflets and through the bores of the support bars;
wherein a gap is provided between each pair of parallel support bars through which a respective pair of adjacent end portions of the pericardial leaflets extend.
2 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic heart valve comprises a radially crimpable and radially expandable, net-like, annular support frame and a valve assembly disposed therein, the valve assembly comprising a conduit tapering from an inlet towards an outlet thereof. Some embodiments or the support frame comprise a proximal portion and a distal portion, a diameter of the proximal portion smaller than a diameter of the distal portion. The proximal portion is dimensioned for deployment in an annulus of a native aortic valve and a distal portion for deployment in an ascending aorta. Some embodiments of the conduit comprise a support construction with a three-cusp, crown-shaped cut line, the support construction sutured to the support frame around a bottom portion thereof and around the cut line. A method for using the prosthetic heart valve to replace a defective native aortic valve uses a minimally invasive procedure.
156 Citations
20 Claims
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1. A prosthetic heart valve, comprising:
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a radially collapsible and expandable annular support frame; three pairs of parallel support bars, each pair of parallel support bars mounted radially inwardly of the support frame, each support bar provided with a plurality of preformed bores; and a valve assembly comprising three pericardial leaflets, the valve assembly anchored within the support frame at least in part by stitching that extends through the pericardial leaflets and through the bores of the support bars; wherein a gap is provided between each pair of parallel support bars through which a respective pair of adjacent end portions of the pericardial leaflets extend. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A prosthetic heart valve, comprising:
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an annular support frame that is radially collapsible and radially expandable; a plurality of longitudinal support bars of fixed length, each support bar mounted radially inwardly of the support frame, each support bar provided with a plurality of preformed bores along the length thereof, each of the preformed bores extending in a circumferential direction; and a valve assembly comprising a tubular conduit having an inlet and an outlet, the conduit anchored within the annular support frame at least in part by stitching extending through the valve assembly and the bores of the support bars; whereby, when flow is allowed to pass through the conduit from the inlet to the outlet, the valve assembly is kept in an open position, whereas a reverse flow is prevented as collapsible slack portions of the valve assembly between the support bars collapse inwardly providing blockage to the reverse flow. - View Dependent Claims (15, 16, 17, 18)
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19. A prosthetic heart valve, comprising:
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a collapsible and expandable annular support frame; a plurality of circumferentially spaced, commissure connecting members coupled to the support frame, each commissure connecting member comprising a pair of longitudinal support bars, each support bar provided with a plurality of preformed bores along a length thereof, and each support bar positioned radially inwardly of the support frame; and a valve assembly comprising pericardial tissue and forming three leaflets, each leaflet comprising opposing end portions, each end portion being paired with an adjacent end portion of an adjacent leaflet to form commissures, each commissure extending radially between the support bars of a respective pair of support bars, each commissure secured to a respective pair of support bars by stitching that extends through the bores of the support bars and the end portions of the leaflets. - View Dependent Claims (20)
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Specification