DELIVERY SYSTEM HAVING RETRACTABLE WIRES AS A COUPLING MECHANISM AND A DEPLOYMENT MECHANISM FOR A SELF-EXPANDING PROSTHESIS
First Claim
1. A delivery system for transcatheter implantation of a heart valve prosthesis comprising:
- an outer sheath component defining a lumen therethrough;
an elongate tube having at least two wires longitudinally extending from a distal end thereof, the elongate tube and the at least two wires being slidably disposed within the lumen of the outer sheath component;
an inner shaft slidably disposed within the elongate tube; and
self-expanding first and second frames disposed in series within a distal portion of the outer sheath component and held in a compressed delivery configuration therein, the first frame being distal of the second frame and a proximal end of the second frame being attached to the inner shaft to be slidable therewith,wherein in the compressed delivery configuration the at least two wires longitudinally extend along exterior portions of the first and second frames and are woven through adjacent ends of the first and second frames to releasably couple them to each other.
1 Assignment
0 Petitions
Accused Products
Abstract
A delivery system for transcatheter implantation of a heart valve prosthesis. The delivery system includes an outer sheath component defining a lumen therethrough, an elongate tube having at least two flat wires longitudinally extending from a distal end thereof, and self-expanding first and second frames disposed in series within a distal portion of the outer sheath component and held in a compressed delivery configuration therein. The elongate tube and the at least two flat wires are slidably disposed within the lumen of the outer sheath component. In the compressed delivery configuration the at least two flat wires longitudinally extend along exterior portions of the first and second frames and are woven through adjacent ends of the first and second frames to releasably couple them to each other. Proximal retraction of the at least two flat wires from the first and second frames releases at least the first frame from the delivery system.
136 Citations
20 Claims
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1. A delivery system for transcatheter implantation of a heart valve prosthesis comprising:
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an outer sheath component defining a lumen therethrough; an elongate tube having at least two wires longitudinally extending from a distal end thereof, the elongate tube and the at least two wires being slidably disposed within the lumen of the outer sheath component; an inner shaft slidably disposed within the elongate tube; and self-expanding first and second frames disposed in series within a distal portion of the outer sheath component and held in a compressed delivery configuration therein, the first frame being distal of the second frame and a proximal end of the second frame being attached to the inner shaft to be slidable therewith, wherein in the compressed delivery configuration the at least two wires longitudinally extend along exterior portions of the first and second frames and are woven through adjacent ends of the first and second frames to releasably couple them to each other. - View Dependent Claims (2, 3, 4, 5)
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6. A delivery system for transcatheter implantation of a heart valve prosthesis comprising:
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an outer sheath component defining a lumen therethrough; an elongate tube defining a lumen and having at least two wires longitudinally extending from a distal end thereof, the elongate tube and the at least two wires being slidably disposed within the lumen of the outer sheath component; an inner shaft slidably disposed within the lumen of the elongate tube; a self-expanding delivery frame having a proximal end attached to the inner shaft to be slidable therewith; and a valve prosthesis having a self-expanding valve frame with a prosthetic valve component secured therein, wherein the valve frame is disposed distal of the delivery frame when each is held in a compressed delivery configuration within a distal portion of the outer sheath component, and wherein in the compressed delivery configuration the at least two wires longitudinally extend along exterior portions of the delivery frame and the valve frame and are woven through adjacent distal and proximal ends of the delivery frame and the valve frame, respectively, to releasably couple them to each other. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A method of implanting a valve prosthesis within a native valve, the method comprising the steps of:
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percutaneously advancing a delivery system to the native valve, wherein the delivery system includes an outer sheath component defining a lumen therethrough, an elongate tube defining a lumen and having at least two wires longitudinally extending from a distal end thereof, the elongate tube and the at least two wires being slidably disposed within the lumen of the outer sheath component, and an inner shaft slidably disposed within the lumen of the elongate tube, and wherein the delivery system further includes a self-expanding delivery frame having a proximal end attached to the inner shaft to be slidable therewith and a valve prosthesis having a self-expanding valve frame with a prosthetic valve component secured therein, the valve frame being disposed distal of the delivery frame and each frame being held in a compressed delivery configuration within a distal portion of the outer sheath component, wherein the at least two wires longitudinally extend along exterior portions of the delivery frame and the valve frame and are woven through adjacent distal and proximal ends of the delivery frame and the valve frame, respectively, to releasably couple them to each other; proximally retracting the outer sheath component to uncover the valve frame and thereby deploy the valve frame to an expanded configuration within the native valve; further proximally retracting the outer sheath component to uncover the delivery frame and thereby deploy the delivery frame to an expanded configuration; and proximally retracting the at least two wires from the deployed valve frame to uncouple the deployed valve frame from the deployed delivery frame. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification