Everting transcatheter valve and methods
First Claim
Patent Images
1. A transcatheter valve comprisinga body frame having a generally tubular shape defining a body frame lumen;
- a leaflet frame having a generally annular shape defining a plurality of U-shaped portions each defining a base and a plurality of posts, the body frame extending coaxially, adjacent to and spaced apart from the leaflet frame, the base of each U-shaped portion being located proximate to but not in contact with a body frame first end of the body frame with the U-shaped portions of the leaflet frame extending away from the body frame and the posts extending away from body frame, the posts being distal from the body frame first end; and
a film, the film extending across and between the U-shaped portions and the body frame, wherein the film that extends between the body frame and the leaflet frame defines a fold region, wherein the film that extends across each of the U-shaped portions defines a leaflet, wherein the leaflet frame is operable to evert to an everted position by rotating about the fold region to a position in which the leaflet frame is at least partially coaxially disposed at least partially within the body frame lumen, wherein each leaflet is moveable between an open and closed position.
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Abstract
Described embodiments are directed toward centrally-opening, leaflet valve devices and systems for transcatheter delivery having a two-piece valve body as well as methods of making and delivering the two-piece valve devices. A transcatheter valve is operable to have a collapsed configuration and an expanded configuration. The transcatheter valve can further be operable to have an everted configuration and a non-everted configuration.
82 Citations
22 Claims
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1. A transcatheter valve comprising
a body frame having a generally tubular shape defining a body frame lumen; -
a leaflet frame having a generally annular shape defining a plurality of U-shaped portions each defining a base and a plurality of posts, the body frame extending coaxially, adjacent to and spaced apart from the leaflet frame, the base of each U-shaped portion being located proximate to but not in contact with a body frame first end of the body frame with the U-shaped portions of the leaflet frame extending away from the body frame and the posts extending away from body frame, the posts being distal from the body frame first end; and a film, the film extending across and between the U-shaped portions and the body frame, wherein the film that extends between the body frame and the leaflet frame defines a fold region, wherein the film that extends across each of the U-shaped portions defines a leaflet, wherein the leaflet frame is operable to evert to an everted position by rotating about the fold region to a position in which the leaflet frame is at least partially coaxially disposed at least partially within the body frame lumen, wherein each leaflet is moveable between an open and closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification