IMPLANTABLE PROSTHETIC VALVE WITH NON-LAMINAR FLOW
First Claim
1. A method for implanting a prosthetic valve in a native heart valve, comprising:
- providing a delivery catheter and prosthetic valve, the delivery catheter having the prosthetic valve mounted thereon, the prosthetic valve comprising a support stent and a valve assembly, the support stent comprising an inlet portion having an inlet diameter, an outlet portion having an outlet diameter, and a middle portion having a middle diameter, wherein the middle diameter is greater than the outlet diameter, and the middle diameter is greater than the inlet diameter;
advancing the prosthetic valve to the native heart valve; and
deploying the prosthetic valve at the native heart valve.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve prosthesis device is disclosed suitable for implantation in body ducts. The device comprises a support stent comprised of a deployable construction adapted to be initially crimped in a narrow configuration suitable for catheterization through the body duct to a target location and adapted to be deployed by exerting substantially radial forces from within by means of a deployment device to a deployed state in the target location, and a valve assembly comprising a flexible conduit having an inlet end and an outlet, made of pliant material attached to the support beams providing collapsible slack portions of the conduit at the outlet. The support stent is provided with a plurality of longitudinally rigid support beams of fixed length. When flow is allowed to pass through the valve prosthesis device from the inlet to the outlet the valve assembly is kept in an open position, whereas a reverse flow is prevented as the collapsible slack portions of the valve assembly collapse inwardly providing blockage to the reverse flow. The device is configured so that retrograde flow will be altered from laminar flow and directed towards the leaflets to effect closing. The device can be deployed in a native heart valve position using a deployment catheter advanced through a body lumen such as a blood vessel, including an aorta.
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Citations
20 Claims
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1. A method for implanting a prosthetic valve in a native heart valve, comprising:
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providing a delivery catheter and prosthetic valve, the delivery catheter having the prosthetic valve mounted thereon, the prosthetic valve comprising a support stent and a valve assembly, the support stent comprising an inlet portion having an inlet diameter, an outlet portion having an outlet diameter, and a middle portion having a middle diameter, wherein the middle diameter is greater than the outlet diameter, and the middle diameter is greater than the inlet diameter; advancing the prosthetic valve to the native heart valve; and deploying the prosthetic valve at the native heart valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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10. A method for implanting a prosthetic valve in a target location in a patient'"'"'s heart, comprising:
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providing a delivery catheter and prosthetic valve, the delivery catheter having the prosthetic valve mounted thereon, the prosthetic valve comprising a support stent and a valve assembly, the support stent comprising a first end portion having a first end diameter, a second end portion having a second end diameter, and a middle portion having a middle diameter, wherein the middle diameter is greater than the second end diameter and the first end diameter; advancing the prosthetic valve to the desired target location; and deploying the prosthetic valve at the desired target location.
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Specification