Transcatheter heart valve replacement systems, heart valve prostheses, and methods for percutaneous heart valve replacement
First Claim
1. A heart valve prosthesis for implantation at a native valve region of a heart, the prosthesis comprising:
- an expandable frame defining a lumen through which blood may flow, the lumen extending from a first end to a second end thereof, wherein the frame includes a plurality of commissure posts extending from the first end;
an inflow member attached to the plurality of commissure posts, the inflow member having an upstream portion and a downstream portion and a channel formed in a wall thereof, wherein the channel extends from at least the downstream portion to the upstream portion, and wherein an interior of the inflow member is configured to support a prosthetic valve;
a locking mechanism secured within the lumen of the expandable frame; and
a wire operably coupled to the locking mechanism, the wire being at least partially slideably disposed within the channel of the inflow member, wherein the locking mechanism is configured to permit the wire to be advanced within the channel of the inflow member to thereby transition the inflow member into a deployed configuration.
1 Assignment
0 Petitions
Accused Products
Abstract
A transcatheter heart valve prosthesis configured in accordance herewith includes an expandable frame having a plurality of commissure posts extending therefrom, a radially expandable inflow member attached to the plurality of commissure posts, and a locking mechanism operably coupled to a wire. The wire is at least partially slideably disposed within a channel formed in a wall of the inflow member and the locking mechanism is configured to permit the wire to be advanced within the channel to thereby transition the inflow member into a deployed configuration that at least partially engages tissue at the native heart valve.
45 Citations
30 Claims
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1. A heart valve prosthesis for implantation at a native valve region of a heart, the prosthesis comprising:
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an expandable frame defining a lumen through which blood may flow, the lumen extending from a first end to a second end thereof, wherein the frame includes a plurality of commissure posts extending from the first end; an inflow member attached to the plurality of commissure posts, the inflow member having an upstream portion and a downstream portion and a channel formed in a wall thereof, wherein the channel extends from at least the downstream portion to the upstream portion, and wherein an interior of the inflow member is configured to support a prosthetic valve; a locking mechanism secured within the lumen of the expandable frame; and a wire operably coupled to the locking mechanism, the wire being at least partially slideably disposed within the channel of the inflow member, wherein the locking mechanism is configured to permit the wire to be advanced within the channel of the inflow member to thereby transition the inflow member into a deployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for repair or replacement of a heart valve, the system comprising:
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a prosthetic heart valve comprising an anchoring structure; an inflow member coupled to and extending from the anchoring structure, the inflow member defining a lumen from an inflow end to an outflow end thereof and having a channel within a wall thereof; a prosthetic valve component disposed within the lumen of the inflow member, the prosthetic valve component configured to inhibit retrograde blood flow through the lumen; an elongated stiffening element at least partially disposed within the channel of the inflow member to thereby transition the inflow member and the prosthetic valve component into a deployed configuration; and a reversible ratcheting mechanism secured to the anchoring structure and coupled to the stiffening element; and a catheter assembly configured to deliver and deploy the prosthetic heart valve, the catheter assembly comprising a handle assembly having a first actuator for operating the reversible ratcheting mechanism to advance the stiffening element within the channel of the inflow member; and an engagement tube extending from the handle assembly, the engagement tube configured to operatively engage the reversible ratcheting mechanism at a proximal end thereof upon actuation of the first actuator. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of repairing or replacing a heart valve in a patient, the method comprising:
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positioning a prosthetic device in a compressed configuration within a heart valve region of the patient; releasing the prosthetic device to at least partially expand such that an inflow member extends through an annulus of the heart valve; at least partially advancing a wire within a channel of the inflow member to transition the inflow member into a deployed configuration; and locking a position of the wire when the inflow member is in the deployed configuration. - View Dependent Claims (28, 29, 30)
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Specification