Everting transcatheter valve and methods

Patent metadata

Field	Value
Publication number	US-11166809-B2
Application number	US-201916359650-A
Country	US
Kind code	B2
Filing date	Mar 20, 2019
Priority date	Jul 25, 2012
Publication date	Nov 9, 2021
Grant date	Nov 9, 2021

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 includes a collapsed configuration and an expanded configuration. The transcatheter valve can further include an everted configuration and a non-everted configuration.

First claim

What is claimed:

1. A method of delivering, via an intravascular procedure, a transcatheter valve including a multi-part frame having a first portion and a second portion, and one or more leaflets coupled to the multi-part frame, the transcatheter valve having a collapsed configuration and an expanded configuration, the method comprising:
positioning the transcatheter valve at an implantation site in the collapsed configuration;
expanding the transcatheter valve;
everting the multi-part frame of the transcatheter valve; and
securing the transcatheter valve at the implantation site; further comprising loading the transcatheter valve onto a distal section of an elongated flexible catheter such that the first portion of the multi-part frame is coaxially, laterally adjacent to an spaced apart from the second portion of the multi-part frame and transcatheter valve is in the collapsed configuration.

2. The method of claim 1 , wherein positioning the transcatheter valve at the implantation site includes delivering the transcatheter valve to a native valve orifice intravascularly.

3. The method of claim 1 , wherein expanding the transcatheter valve includes expanding the transcatheter valve into a native valve orifice.

4. The method of claim 1 , wherein transitioning the transcatheter valve to an everted configuration includes everting the second portion of the multi-part frame into the first portion of the multi-part frame.

5. The method of claim 1 , wherein the first portion of the multi-part frame defines a generally tubular shape and the second portion of the multi-part frame defines a generally annular shape, the first and second portions of the multi-part frame being coupled by a film bridge defining a fold region between the first and seconds portion of the multi-part frame.

6. The method of claim 1 , wherein the first and second portions of the multi-part frame have different stiffnesses.

7. The method of claim 1 , wherein at least one of the first and second portions of the multi-part frame is formed of non-shape memory material.

8. The method of claim 1 , wherein the first portion of the multi-part frame is formed of an open framework operable to be compressed to a collapsed configuration and expanded to an expanded configuration.

9. The method of claim 1 , wherein following securement of the transcatheter valve at the implantation site, the second portion of the multi-part frame is held adjacent to the first portion of the multi-part frame by a spring bias of the second portion of the multi-part frame.

Assignees

• Gore & Ass

Inventors

• Bruchman William C
• Hartman Cody L

Classifications

• A61F2002/9583

  Means for holding the stent on the balloon, e.g. using protrusions, adhesives or an outer sleeve · CPC title

• A61F2230/0054

  V-shaped · CPC title

• A61L31/048

  obtained by reactions only involving carbon-to-carbon unsaturated bonds (A61L31/041 takes precedence) · CPC title

• A61F2/2409

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

• B29C70/683

  Pretreatment of the preformed part, e.g. insert · CPC title