Rapidly deployable surgical heart valves
First Claim
1. A prosthetic heart valve for implantation at a heart valve annulus, comprising:
- a non-expandable, non-collapsible annular support structure defining a flow orifice and having an inflow end;
valve leaflets attached to the support structure and mounted to alternately open and close across the flow orifice;
a plastically-expandable frame having an outflow or first end extending around the flow orifice and connected to the valve at the inflow end of the support structure, the frame having an inflow or second end projecting away from the support structure and being capable of assuming a contracted state for delivery to an implant position and a wider expanded state for outward contact with an annulus, wherein in the contracted state the frame tapers inward in a direction from the first end toward the second end, and wherein the first end of the frame has a scalloped shape with peaks and valleys, and in the contracted state the frame is cylindrical between the peaks and valleys and tapers inward from the valleys to the second end; and
a fabric covering around the plastically-expandable frame including an enlarged sealing flange surrounding the second end.
1 Assignment
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Accused Products
Abstract
A quick-connect heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The heart valve includes a substantially non-expandable, non-compressible prosthetic valve and a plastically-expandable frame, thereby enabling attachment to the annulus without sutures. A small number of guide sutures may be provided for aortic valve orientation. The prosthetic valve may be a commercially available valve with a sewing ring with the frame attached thereto. The frame may expand from a conical deployment shape to a conical expanded shape, and may include web-like struts connected between axially-extending posts. A system and method for deployment includes an integrated handle shaft and balloon catheter. A valve holder is stored with the heart valve and the handle shaft easily attaches thereto to improve valve preparation steps.
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Citations
20 Claims
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1. A prosthetic heart valve for implantation at a heart valve annulus, comprising:
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a non-expandable, non-collapsible annular support structure defining a flow orifice and having an inflow end; valve leaflets attached to the support structure and mounted to alternately open and close across the flow orifice; a plastically-expandable frame having an outflow or first end extending around the flow orifice and connected to the valve at the inflow end of the support structure, the frame having an inflow or second end projecting away from the support structure and being capable of assuming a contracted state for delivery to an implant position and a wider expanded state for outward contact with an annulus, wherein in the contracted state the frame tapers inward in a direction from the first end toward the second end, and wherein the first end of the frame has a scalloped shape with peaks and valleys, and in the contracted state the frame is cylindrical between the peaks and valleys and tapers inward from the valleys to the second end; and a fabric covering around the plastically-expandable frame including an enlarged sealing flange surrounding the second end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A prosthetic heart valve for implantation at a heart valve annulus, comprising:
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a non-expandable, non-collapsible annular support structure defining a flow orifice and having an inflow end; valve leaflets attached to the support structure and mounted to alternately open and close across the flow orifice; a relatively stiff sealing ring secured to and projecting outward from the inflow end of the support structure; and a plastically-expandable frame having a first end extending around the flow orifice and connected to the valve at the inflow end of the support structure, the frame having a second end projecting away from the support structure and being capable of assuming a contracted state for delivery to an implant position and a wider expanded state for outward contact with an annulus, wherein the sealing ring and frame in its expanded state are spaced apart to sandwich the heart valve annulus therebetween, wherein the first end of the frame has a scalloped shape with peaks and valleys, and wherein in the contracted state the frame is cylindrical between the peaks and valleys and tapers inward from the valleys to the second end. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification