Anti-paravalvular leakage component for a transcatheter valve prosthesis

Patent metadata

Field	Value
Publication number	US-2023301781-A1
Application number	US-202318319819-A
Country	US
Kind code	A1
Filing date	May 18, 2023
Priority date	Feb 1, 2013
Publication date	Sep 28, 2023
Grant date	—

Abstract

A transcatheter valve prosthesis includes an expandable tubular stent, a prosthetic valve within the stent, and an anti-paravalvular leakage component coupled to and encircling the tubular stent. The anti-paravalvular leakage component includes a radially-compressible annular scaffold, which is a sinusoidal patterned ring of self-expanding material, and an impermeable membrane extending over the annular scaffold. The anti-paravalvular leakage component has an expanded configuration in which at least segments of the annular scaffold curve radially away from the tubular stent. Alternatively, the anti-paravalvular leakage component includes a plurality of self-expanding segments and an annular sealing element coupled to inner surfaces of the segments. The anti-paravalvular leakage component has an expanded configuration in which the segments curve radially away from the tubular stent and the annular sealing element is positioned between an outer surface of the tubular stent and inner surfaces of the segments. The segments may be orthogonal or oblique to the outer surface of the tubular stent.

First claim

What is claimed is:

1 - 20 . (canceled)

21 . A transcatheter valve prosthesis comprising:
a frame having a proximal end, a distal end and a plurality of openings, each opening of the plurality of openings being formed by a plurality of struts of the frame, the frame having a compressed configuration for delivery within a vasculature and an expanded configuration for deployment within a native heart valve; a prosthetic valve component disposed within and secured to the frame; and an outer component coupled to and encircling the frame, the outer component including a plurality of self-expanding segments and a sealing element attached to the plurality of self-expanding segments, wherein each self-expanding segment has a first end and a second end, the first end being attached directly to a first strut of the plurality of struts of the frame at a first attachment point and the second end being attached directly to a second strut of the plurality of struts of the frame at a second attachment point, the first strut forming a portion of a first opening of the plurality of openings and the second strut forming a portion of a second opening of the plurality of openings, the first and second openings being adjacent to each other, wherein the outer component has an expanded configuration in which an entire length of each self-expanding segment extends radially away from, and is oblique to, an outer surface of the frame, such that a plane defined by each self-expanding segment is non-perpendicular with respect to a tangential plane taken through its respective first and second attachment points.

22 . The transcatheter valve prosthesis of claim 21 , wherein each self-expanding segment has a concave profile when the outer component is in the expanded configuration.

23 . The transcatheter valve prosthesis of claim 21 , wherein each self-expanding segment has a convex profile when the outer component is in the expanded configuration.

24 . The transcatheter valve prosthesis of claim 21 , wherein the sealing element is attached to inner surfaces of the plurality of self-expanding segments and is disposed between the outer surface of the frame and the inner surfaces of the plurality of self-expanding segments when the outer component is in the expanded configuration.

25 . The transcatheter valve prosthesis of claim 21 , wherein the sealing element is attached to outer surfaces of the plurality of self-expanding segments.

26 . The transcatheter valve prosthesis of claim 21 , wherein each self-expanding segment is U-shaped.

27 . The transcatheter valve prosthesis of claim 21 , wherein the plane defined by each self-expanding segment forms an angle between 20 and 80 degrees with respect to its respective tangential plane.

28 . The transcatheter valve prosthesis of claim 21 , wherein the first and second attachment points are circumferentially spaced apart on the frame but are not axially spaced apart on the frame in a longitudinal direction of the frame.

29 . The transcatheter valve prosthesis of claim 21 , wherein the first and second attachment points are axially spaced apart on the frame in a longitudinal direction of the frame but are not circumferentially spaced apart on the frame.

30 . The transcatheter valve prosthesis of claim 21 , wherein the first and second attachment points are circumferentially spaced apart on the frame and are axially spaced apart on the frame in a longitudinal direction of the frame.

31 . A transcatheter valve prosthesis comprising:
a frame having a proximal end, a distal end and a plurality of openings, each opening of the plurality of openings being formed by a plurality of struts of the frame, the frame having a compressed configuration for delivery within a vasculature and an expanded configuration for deployment within a native heart valve; a prosthetic valve component disposed within and secured to the frame; and an outer component coupled to and encircling the frame, the outer component including a plurality of self-expanding segments and a sealing element attached to the plurality of self-expanding segments, wherein each self-expanding segment has a first end and a second end, the first end being attached directly to a first strut of the plurality of struts of the frame at a first attachment point and the second end being attached directly to a second strut of the plurality of struts of the frame at a second attachment point, each of the first strut and the second strut forming a portion of a first opening of the plurality of openings, wherein the outer component has an expanded configuration in which an entire length of each self-expanding segment extends radially away from, and is oblique to, an outer surface of the frame, such that a plane defined by each self-expanding segment is non-perpendicular with respect to a tangential plane taken through its respective first and second attachment points.

32 . The transcatheter valve prosthesis of claim 31 , wherein each self-expanding segment has a concave profile when the outer component is in the expanded configuration.

33 . The transcatheter valve prosthesis of claim 31 , wherein each self-expanding segment has a convex profile when the outer component is in the expanded configuration.

34 . The transcatheter valve prosthesis of claim 31 , wherein the sealing element is attached to inner surfaces of the plurality of self-expanding segments and is disposed between the outer surface of the frame and the inner surfaces of the plurality of self-expanding segments when the outer component is in the expanded configuration.

35 . The transcatheter valve prosthesis of claim 31 , wherein the sealing element is attached to outer surfaces of the plurality of self-expanding segments.

36 . The transcatheter valve prosthesis of claim 31 , wherein each self-expanding segment is U-shaped.

37 . The transcatheter valve prosthesis of claim 31 , wherein the plane defined by each self-expanding segment forms an angle between 20 and 80 degrees with respect to its respective tangential plane.

38 . The transcatheter valve prosthesis of claim 31 , wherein the first and second attachment points are circumferentially spaced apart on the frame but are not axially spaced apart on the frame in a longitudinal direction of the frame.

39 . The transcatheter valve prosthesis of claim 31 , wherein the first and second attachment points are axially spaced apart on the frame in a longitudinal direction of the frame but are not circumferentially spaced apart on the frame.

40 . The transcatheter valve prosthesis of claim 31 , wherein the first and second attachment points are circumferentially spaced apart on the frame and are axially spaced apart on the frame in a longitudinal direction of the frame.

Assignees

• Medtronic Cv Luxembourg S A R L

Inventors

• Garde Kshitija
• Racchini Joel
• Rothstein Paul
• Sandstrom Jeffrey

Classifications

• A61F2/2418 Primary

  Scaffolds therefor, e.g. support stents · CPC title

• A61F2/2409

  Support rings therefor, e.g. for connecting valves to tissue (annuloplasty rings A61F2/2442) · CPC title

• A61F2220/005

  using adhesives · CPC title

• A61F2220/0075

  sutured, ligatured or stitched, retained or tied with a rope, string, thread, wire or cable · CPC title

• A61F2230/0013

  Horseshoe-shaped, e.g. crescent-shaped, C-shaped, U-shaped · CPC title