Prosthetic valve and upstream support therefor
First Claim
1. Apparatus for use at a native valve of a heart of a subject, the apparatus comprising:
- a prosthetic valve, comprising;
a valve body, comprising a tubular frame and a plurality of prosthetic leaflets arranged to facilitate upstream-to-downstream fluid flow through the prosthetic valve;
an upstream support, comprising a second frame that is distinct from the tubular frame; and
a flexible sheet that flexibly couples the upstream support to the valve body; and
a delivery tool comprising, at a distal portion of the delivery tool, a first housing and a second housing,wherein;
in a delivery configuration of the apparatus, the distal portion of the delivery tool is configured for transluminal advancement to the heart, and the prosthetic valve is in a compressed state in which;
the second frame and the tubular frame are arranged in series within the delivery tool,at least part of the tubular frame is compressed within the first housing, such that the valve body has a compressed body-diameter,at least part of the second frame is compressed within the second housing,at least part of the sheet extends between the tubular frame and the second frame and is exposed between the first housing and the second housing, thereby articulatably coupling the tubular frame to the second frame; and
the prosthetic valve is deployable from the delivery tool by moving the first housing and the second housing axially away from each other, such that the prosthetic valve automatically expands into an expanded state in which;
(1) the valve body;
has an expanded body-diameter that is greater than the compressed body-diameter, andis shaped to fit within the native valve,(2) the second frame;
is annular,is shaped to be placed against an upstream surface of the native valve, anddefines an inner perimeter that is wider than the expanded body-diameter,(3) the sheet extends inwardly from the inner perimeter to the valve body,(4) the prosthetic valve defines a conduit through the upstream support and the valve body.
4 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic valve comprises a valve body, comprising a tubular frame and a plurality of leaflets; an upstream support, comprising a second frame; and a flexible sheet that couples the upstream support to the valve body. The prosthetic valve is compressible into a delivery tool such that the prosthetic valve is in a compressed state in which the second frame and the tubular frame are arranged in series within the tool, and the valve body has a compressed body-diameter. The prosthetic valve is deployable from the tool such that the prosthetic valve automatically expands into an expanded state. In the expanded state, the second frame defines an inner perimeter, the sheet extends inwardly from the inner perimeter to the valve body, and the prosthetic valve defines a conduit through the upstream support and the valve body. Other embodiments are also described.
872 Citations
11 Claims
-
1. Apparatus for use at a native valve of a heart of a subject, the apparatus comprising:
-
a prosthetic valve, comprising; a valve body, comprising a tubular frame and a plurality of prosthetic leaflets arranged to facilitate upstream-to-downstream fluid flow through the prosthetic valve; an upstream support, comprising a second frame that is distinct from the tubular frame; and a flexible sheet that flexibly couples the upstream support to the valve body; and a delivery tool comprising, at a distal portion of the delivery tool, a first housing and a second housing, wherein; in a delivery configuration of the apparatus, the distal portion of the delivery tool is configured for transluminal advancement to the heart, and the prosthetic valve is in a compressed state in which; the second frame and the tubular frame are arranged in series within the delivery tool, at least part of the tubular frame is compressed within the first housing, such that the valve body has a compressed body-diameter, at least part of the second frame is compressed within the second housing, at least part of the sheet extends between the tubular frame and the second frame and is exposed between the first housing and the second housing, thereby articulatably coupling the tubular frame to the second frame; and the prosthetic valve is deployable from the delivery tool by moving the first housing and the second housing axially away from each other, such that the prosthetic valve automatically expands into an expanded state in which; (1) the valve body; has an expanded body-diameter that is greater than the compressed body-diameter, and is shaped to fit within the native valve, (2) the second frame; is annular, is shaped to be placed against an upstream surface of the native valve, and defines an inner perimeter that is wider than the expanded body-diameter, (3) the sheet extends inwardly from the inner perimeter to the valve body, (4) the prosthetic valve defines a conduit through the upstream support and the valve body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification