Method for deploying a prosthetic heart valve
AssigneeEdwards Lifesciences Corporation
InventorsDavid M. Taylor, Philippe Marchand, Larry L. Wood, Robert Bowes
Life of this patent
Estimating the term…
Abstract
A method for deploying an expandable prosthetic heart valve in a patient includes introducing a guidewire into a patient and advancing the guidewire through a vasculature of a patient to a deployment site. A distal end portion of a delivery apparatus and the prosthetic heart valve mounted in a radially compressed configuration along the distal end portion are advanced over the guidewire. The prosthetic heart valve is positioned at the deployment site. A screw mechanism is rotated, which exerts an axially directed onto the prosthetic heart valve, causing the prosthetic heart valve to radially expand from the radially compressed configuration to a radially expanded configuration.
Claims20
A method for deploying an expandable prosthetic heart valve in a patient, the method comprising:
- introducing a guidewire into a patient and advancing the guidewire through a vasculature of a patient to a deployment site;
- advancing over the guidewire a distal end portion of a delivery apparatus and the prosthetic heart valve mounted in a radially compressed configuration along the distal end portion;
- positioning the prosthetic heart valve at the deployment site, the prosthetic heart valve comprising a frame and one or more leaflet members disposed within the frame;
- and
- rotating a screw mechanism, the rotating resulting in exertion of a proximally directed force on a distal end of the prosthetic heart valve and a distally directed force on a proximal end of the prosthetic heart valve, wherein the proximally directed force and the distally directed force exerted on the prosthetic valve forces the prosthetic heart valve to radially expand from the radially compressed configuration to a radially expanded configuration;
- wherein the delivery apparatus comprises an actuator coupled to the screw mechanism and rotating the screw mechanism comprises actuating the actuator to produce rotation of the screw mechanism.
A method for deploying an expandable prosthetic heart valve in a patient, the method comprising:
- introducing a guidewire into a patient and advancing the guidewire through a vasculature of a patient to a deployment site;
- advancing over the guidewire a distal end portion of a delivery apparatus and the prosthetic heart valve mounted in a radially compressed configuration along the distal end portion;
- positioning the prosthetic heart valve at the deployment site;
- and
- rotating an externally threaded screw in a first direction, wherein the threaded screw extends through an internally threaded portion of an expansion mechanism, wherein the rotating of the threaded screw produces proximally and distally directed forces acting on the prosthetic heart valve to cause distal and proximal ends of the prosthetic heart valve to move closer to each other, wherein the proximally and distally directed forces acting on the prosthetic valve forces the prosthetic heart valve to radially expand from the radially compressed configuration to a radially expanded configuration.
A method for deploying an expandable prosthetic heart valve in a patient, the method comprising:
- introducing a guidewire into a patient and advancing the guidewire through a vasculature of a patient to a deployment site;
- advancing over the guidewire a distal end portion of a delivery apparatus and the prosthetic heart valve mounted in a radially compressed configuration along the distal end portion;
- positioning the prosthetic heart valve at the deployment site;
- rotating a screw mechanism, which exerts a proximally directed force on a distal end of the prosthetic heart valve and a distally directed force on a proximal end of the prosthetic heart valve, thereby causing the prosthetic heart valve to radially expand from the radially compressed configuration to a radially expanded configuration in which the prosthetic heart valve contacts a native heart valve annulus;
- releasing the prosthetic heart valve from the delivery apparatus and removing the delivery apparatus from the patient's vasculature after radially expanding the prosthetic heart valve;
- and
- wherein the delivery apparatus comprises a handle that includes visual indicia that indicates an amount of expansion of the prosthetic heart valve.
Dependencies are inferred from the claim text.