Transcatheter valve prosthesis and a concurrently delivered sealing component

Patent metadata

Field	Value
Publication number	US-10478298-B2
Application number	US-201615252409-A
Country	US
Kind code	B2
Filing date	Aug 31, 2016
Priority date	Feb 21, 2013
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A method of preventing paravalvular leakage includes concurrent delivery of a heart valve prosthesis and an annular sealing component. During delivery, the sealing component is moved from a first position to a second position of the heart valve prosthesis which is longitudinally spaced apart from the first position of the heart valve prosthesis. The sealing component is secured around the heart valve prosthesis at the second position by a contoured outer surface of the heart valve prosthesis. The sealing component may be a flexible ring or may be a cylindrical flexible sleeve having a plurality of ribs longitudinally extending over the cylindrical sleeve. The ribs operate to deploy the sealing component such that at least a portion of the cylindrical sleeve buckles outwardly away from the outer surface of the heart valve prosthesis.

First claim

What is claimed is:

1. A transcatheter valve prosthesis comprising:
a tubular stent 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 tubular stent; and
an annular sealing component coupled to and encircling an outer surface of the tubular stent, the sealing component including a cylindrical sleeve formed of a flexible material and a plurality of ribs longitudinally extending over the cylindrical sleeve, each rib of the plurality of ribs longitudinally extending at least from a first end of the cylindrical sleeve to a second opposing end of the cylindrical sleeve, wherein the sealing component has a delivery configuration in which the cylindrical sleeve lays flat against the outer surface of the tubular stent and a deployed configuration in which at least a portion of each rib of the plurality of ribs is sinusoidal and cause at least a portion of cylindrical sleeve to buckle outwardly away from the outer surface of the tubular stent.

2. The transcatheter valve prosthesis of claim 1 , wherein the ribs are formed from a self-expanding material and the ribs are coupled to a surface of the cylindrical sleeve.

3. The transcatheter valve prosthesis of claim 1 , wherein the ribs are stitched through the cylindrical sleeve and are cinched to transform the sealing component from the delivery configuration to the deployed configuration.

4. The transcatheter valve prosthesis of claim 1 , wherein the sealing component in its deployed configuration is secured around the tubular stent by a contoured outer surface of the tubular stent.

5. The transcatheter valve prosthesis of claim 1 , wherein a portion of the sealing component is coupled to the outer surface of the tubular stent.

6. A transcatheter valve prosthesis comprising:
a tubular stent 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 tubular stent; and
an annular sealing component coupled to and encircling an outer surface of the tubular stent, the sealing component including a cylindrical sleeve formed of a flexible material and a plurality of ribs longitudinally extending over the cylindrical sleeve, each rib of the plurality of ribs extending at least from a first end of the cylindrical sleeve to a second opposing end of the cylindrical sleeve, wherein the sealing component has a delivery configuration in which the cylindrical sleeve lays flat against the outer surface of the tubular stent and each rib of the plurality of ribs is straightened and a deployed configuration in which at least a portion of each rib of the plurality of ribs is sinusoidal and at least a portion of the cylindrical sleeve bulges in a radial direction away from the outer surface of the tubular stent.

7. The transcatheter valve prosthesis of claim 6 , wherein each rib is coupled to a surface of the cylindrical sleeve and extends from the first end of the cylindrical sleeve to the second opposing end of the cylindrical sleeve.

8. The transcatheter valve prosthesis of claim 7 , wherein the ribs are formed from a self-expanding material preset to the deployed configuration and the ribs self-expand to transform the sealing component from the delivery configuration to the deployed configuration.

9. The transcatheter valve prosthesis of claim 6 , wherein each rib is a strand of material that is stitched through a sidewall of the cylindrical sleeve.

10. The transcatheter valve prosthesis of claim 9 , wherein the ribs are cinched to transform the sealing component from the delivery configuration to the deployed configuration.

11. The transcatheter valve prosthesis of claim 10 , wherein each rib is coupled to the cylindrical sleeve at the first end thereof.

12. The transcatheter valve prosthesis of claim 11 , wherein each rib proximally extends beyond the second opposing end of the cylindrical sleeve such that a proximal end of each rib is accessible to and configured to be controlled by a user.

13. The transcatheter valve prosthesis of claim 6 , wherein the sealing component in its deployed configuration is secured around the tubular stent by a contoured outer surface of the tubular stent.

14. The transcatheter valve prosthesis of claim 6 , wherein a portion of the sealing component is coupled to the outer surface of the tubular stent.

15. The transcatheter valve prosthesis of claim 14 , wherein only the first end of the cylindrical sleeve is coupled to the outer surface of the tubular stent.

16. The transcatheter valve prosthesis of claim 3 , wherein each rib is coupled to the cylindrical sleeve at the first end thereof.

17. The transcatheter valve prosthesis of claim 16 , wherein each rib proximally extends beyond the second opposing end of the cylindrical sleeve such that a proximal end of each rib is accessible to and configured to be controlled by a user.

18. A transcatheter valve prosthesis comprising:
a tubular stent 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 tubular stent; and
an annular sealing component coupled to and encircling an outer surface of the tubular stent, the sealing component including a cylindrical sleeve formed of a flexible material and a plurality of ribs circumferentially spaced apart from each other and coupled to the cylindrical sleeve, each rib of the plurality of ribs longitudinally extending at least from a first end of the cylindrical sleeve to a second opposing end of the cylindrical sleeve,
wherein the plurality of ribs are cinched to transform the sealing component from a delivery configuration to a deployed configuration, wherein in the delivery configuration each rib of the plurality of ribs is straightened and the cylindrical sleeve lays flat against the outer surface of the tubular stent, and in the deployed configuration at least a portion of each rib of the plurality of ribs is sinusoidal and the cylindrical sleeve buckles such that alternating portions of the cylindrical sleeve bulge outwardly away from the outer surface of the tubular stent in a radial direction.

19. The transcatheter valve prosthesis of claim 18 , wherein each rib is a strand of material that passes through a sidewall of the cylindrical sleeve in a running stitch.

20. The transcatheter valve prosthesis of claim 18 , wherein only the first end of the cylindrical sleeve is coupled to the outer surface of the tubular stent and a remaining length and the second opposing end of the cylindrical sleeve is not coupled to the tubular stent to permit the sealing component to buckle into the deployed configuration.

Assignees

• Medtronic Inc

Inventors

• Torrianni Mark
• Garde Kshitija
• Richardson Eric

Classifications

• A61F2/2418

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

• A61F2/2436 Primary

  Deployment by retracting a sheath · CPC title

• A61F2210/0014

  using shape memory or superelastic materials, e.g. nitinol · CPC title

• A61F2250/0003

  having an inflatable pocket filled with fluid, e.g. liquid or gas · CPC title

• A61F2310/00023

  Titanium or titanium-based alloys, e.g. Ti-Ni alloys · CPC title