Covered prosthetic heart valve

Patent metadata

Field	Value
Publication number	US-12539211-B2
Application number	US-202117327575-A
Country	US
Kind code	B2
Filing date	May 21, 2021
Priority date	Jan 23, 2017
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

A prosthetic heart valve includes a frame having an inflow end and an outflow end, and defining a longitudinal axis. The prosthetic heart valve further includes a leaflet structure situated at least partially within the frame, and a covering disposed around the frame. The covering includes a first woven portion extending circumferentially around the frame and including a plurality of texturized strands or yarns extending along the longitudinal axis of the frame. The covering further includes a second woven portion extending circumferentially around the frame and spaced apart from the first woven portion along the longitudinal axis of the frame. The texturized strands extend along the longitudinal axis of the frame from the first woven portion to the second woven portion and form a floating portion between the first woven portion and the second woven portion.

First claim

The invention claimed is:

1 . A prosthetic heart valve, comprising:
a frame comprising a plurality of strut members, the frame being radially collapsible and expandable between a collapsed configuration and an expanded configuration, the frame having an inflow end and an outflow end, and defining a longitudinal axis; a leaflet structure situated at least partially within the frame; and a covering disposed around the frame, the covering being resiliently stretchable between a first state corresponding to the radially expanded configuration of the frame, and a second state corresponding to the radially collapsed configuration of the frame; the covering comprising a first woven portion comprising interwoven strands, a second woven portion spaced apart from the first woven portion along the longitudinal axis of the frame, and a non-woven floating portion between the first woven portion and the second woven portion.

2 . The prosthetic heart valve of claim 1 , wherein the covering comprises texturized strands resiliently stretchable between the first state corresponding to the radially expanded configuration of the frame and the second state corresponding to the radially collapsed configuration of the frame.

3 . The prosthetic heart valve of claim 2 , wherein the texturized strands are configured to provide compressible volume to the covering when the frame is in the expanded configuration.

4 . The prosthetic heart valve of claim 1 , wherein:
the covering comprises a first protective portion folded over apices of the strut members at the inflow end of the frame, and a second protective portion folded over apices of the strut members at the outflow end of the frame.

5 . The prosthetic heart valve of claim 4 , wherein the first protective portion and the second protective portion are configured as respective first and second strip members comprising a tissue or polymeric material.

6 . The prosthetic heart valve claim 5 , wherein the first strip member comprises a first circumferential edge portion and a second circumferential edge portion, and the first and second circumferential edge portions are sutured together to form the first protective portion.

7 . The prosthetic heart valve of claim 6 , wherein the first circumferential edge portion of the first strip member is sutured to an outer surface of the covering, and the second circumferential edge portion of the first strip member is disposed inside the frame.

8 . The prosthetic heart valve of claim 1 , wherein the non-woven floating portion comprises strands of the first woven portion extending between the first woven portion and the second woven portion.

9 . The prosthetic heart valve of claim 8 , wherein the strands of the non-woven floating portion are texturized strands configured to provide compressible volume to the floating portion.

10 . The prosthetic heart valve of claim 8 , wherein the interwoven strands of the first woven portion and the second woven portion are woven into a leno weave pattern in the first woven portion and in the second woven portion.

11 . The prosthetic heart valve of claim 10 , wherein:
the covering further comprises a third woven portion on the opposite side of the first woven portion from the non-woven floating portion, the third woven portion comprising the strands of the first woven portion.

12 . The prosthetic heart valve of claim 8 , wherein:
the covering comprises a plurality of woven portions including the first woven portion and the second woven portion; and the non-woven floating portion is one of a plurality of non-woven floating portions arranged alternatingly with the plurality of woven portions along the longitudinal axis of the frame.

13 . A prosthetic heart valve, comprising:
a frame comprising a plurality of strut members, the frame being radially collapsible and expandable between a collapsed configuration and an expanded configuration, the frame having an inflow end and an outflow end, and defining a longitudinal axis; a leaflet structure situated at least partially within the frame; and a covering disposed around the frame, the covering comprising a plurality of woven strips extending circumferentially around the frame and a plurality of non-woven floating strips extending circumferentially around the frame.

14 . The prosthetic heart valve of claim 13 , wherein the non-woven floating strips and the woven strips are arranged alternatingly along the longitudinal axis of the frame.

15 . The prosthetic heart valve of claim 14 , wherein each non-woven floating strip of the plurality of non-woven floating strips comprises an upper and lower circumferential edge bounded by a woven strip of the plurality of woven strips.

16 . The prosthetic heart valve of claim 15 , wherein each woven strip of the plurality of woven strips that bounds a non-woven floating strip comprises a leno weave pattern.

17 . The prosthetic heart valve of claim 13 , wherein the covering is resiliently stretchable between a first state corresponding to the radially expanded configuration of the frame, and a second state corresponding to the radially collapsed configuration of the frame.

18 . The prosthetic heart valve of claim 17 , wherein at least the non-woven floating strips comprise texturized strands, and are resiliently stretchable as the covering moves between the first state and the second state.

19 . The prosthetic heart valve of claim 13 , wherein:
the covering comprises a first protective portion folded over apices of the strut members at the inflow end of the frame, and a second protective portion folded over apices of the strut members at the outflow end of the frame.

20 . A prosthetic heart valve, comprising
a frame comprising a plurality of strut members, the frame being radially collapsible and expandable between a collapsed configuration and an expanded configuration, the frame having an inflow end and an outflow end, and defining a longitudinal axis; a leaflet structure situated at least partially within the frame; a covering disposed around the frame, the covering comprising a plurality of woven portions extending circumferentially around the frame and a plurality of non-woven floating portions extending circumferentially around the frame; the covering further comprising a first protective portion folded over apices of the strut members at the inflow end of the frame and sutured to itself through the frame, and a second protective portion folded over apices of the strut members at the outflow end of the frame and sutured to itself through the frame.

Assignees

• Edwards Lifesciences Corp

Inventors

• Schwartz Evan T
• Chow Sean
• Pawar Sandip Vasant
• Patel Darshin S
• Chhe Chambory
• Laddha Arpit
• Nguyen Ngoc Huong Thi
• Chu Waina Michelle
• Du Yuanlong
• Bukin Michael
• Manash Boaz
• Tzadok Sara
• Levi Tamir S

Classifications

• A61F2250/0069

  Sealing means · CPC title

• A61F2250/006

  modular · CPC title

• A61F2250/0028

  differing in fibre orientations · CPC title

• A61F2230/0091

  helically-coiled or spirally-coiled, i.e. having a 2-D spiral cross-section · CPC title

• A61F2230/0054

  V-shaped · CPC title