Prosthetic Heart Valves and Delivery Methods

• US 20110257721A1
• Filed: 04/14/2011
• Published: 10/20/2011
• Est. Priority Date: 04/15/2010
• Status: Abandoned Application

• Current Assignee: Medtronic Incorporated (Medtronic Plc)
• Original Assignee: Medtronic Incorporated (Medtronic Plc)
• Inventors: Tabor, Charles
• Application Number:
  US13/086,845
• Publication Number:
  US 20110257721A1
• Time in Patent Office: Days
• US Class Current: 623/1.11
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents
• CPC Class Codes: A61F 2230/0054 V-shaped
• CPC Class Codes: A61F 2230/008 paraboloidal
• CPC Class Codes: A61F 2250/006 modular

Abstract

A method of remodeling a stented device and an adjacent a valve region of a patient, including the steps of implanting a stented device into a native valve region of a patient, providing a first remodeling ring on a portion of a delivery system, advancing the remodeling ring into an interior area of the implanted stented device with the delivery system, radially expanding the remodeling ring until it modifies at least one of an aspect of a shape of the interior area of the implanted stented device and an aspect of a shape of the valve region in which it is positioned, and removing the delivery system from the patient.

Claims

1. A method of remodeling a stented device and an adjacent valve region of a patient, comprising the steps of:

implanting a stented device into a native valve region of a patient;

providing a first remodeling ring on a portion of a delivery system;

advancing the remodeling ring into an interior area of the implanted stented device with the delivery system;

radially expanding the remodeling ring until it modifies at least one of an aspect of a shape of the interior area of the implanted stented device and an aspect of a shape of the valve region in which it is positioned; and

removing the delivery system from the patient.

2. The method of claim 1, wherein the stented device comprises:

a support frame having an interior area, and

a valve attached to the support frame within the interior area.

3. The method of claim 1, wherein the portion of the delivery system on which the first remodeling ring is positioned comprises a balloon, and wherein the step of radially expanding the remodeling ring comprises the step of radially expanding the balloon within the remodeling ring.

4. The method of claim 1, wherein the portion of the delivery system on which the first remodeling ring is positioned comprises an external sheath, and wherein the step of radially expanding the first remodeling ring comprises the step of axially sliding the sheath relative to the first remodeling ring to allow the first remodeling ring to radially expand.

5. The method of claim 2, wherein the step of advancing the first remodeling ring into the interior area of the implanted stented device further comprises positioning the remodeling ring adjacent to the valve within the interior area of the support frame.

6. The method of claim 1, wherein the native valve region comprises an annular valve region of a patient.

7. The method of claim 6, wherein the annular valve region comprises an annulus of a native aortic valve.

8. The method of claim 1, wherein the first remodeling ring comprises a mesh tubular structure.

9. The method of claim 1, wherein the first remodeling ring comprises a frame structure and a covering over at least a portion of the frame structure.

10. The method of claim 1, wherein the radial expansion of the remodeling ring modifies the size of the valve region.

11. The method of claim 1, wherein the step of radially expanding the remodeling ring comprises modifying both an aspect of a shape of the interior area of the implanted stented device and an aspect of a shape of the valve region in which it is positioned.

12. The method of claim 1, further comprising the steps of:

providing a second remodeling ring on a portion of a delivery system;

advancing the second remodeling ring into an interior area of the implanted stented device and spaced from the first remodeling ring with the delivery system; and

radially expanding the second remodeling ring until it modifies at least one of an aspect of a shape of the interior area of the implanted stented device and an aspect of a shape of the valve region in which it is positioned.

13. The method of claim 12, wherein the first and second remodeling rings are delivered into the interior area of the implanted stented device with the same delivery system.

14. The method of claim 12, wherein the first and second remodeling rings are radially expanded sequentially.

15. The method of claim 12, wherein the first and second remodeling rings are radially expanded simultaneously.

16. The method of claim 12, wherein the first remodeling ring has at least one different material property from the second remodeling ring.

17. A method of remodeling a stented device and an adjacent valve region of a patient, comprising the steps of:

implanting a low-radial force stented device into a native valve region of a patient;

providing a first remodeling ring on an expandable portion of a delivery system;

advancing the remodeling ring into an interior area of the implanted stented device with the delivery system;

expanding the expandable portion of the delivery system to cause the remodeling ring to radially expand until it modifies at least one aspect of a shape of the interior area of the implanted stented device and also modifies at least one aspect of a shape of the valve region in which it is positioned; and

removing the delivery system from the patient.

18. The method of claim 17, further comprising the steps of:

providing a second remodeling ring on an expandable portion of a delivery system;

advancing the second remodeling ring into an interior area of the implanted stented device and spaced from the first remodeling ring; and

expanding the expandable portion of the delivery system to cause the second remodeling ring to radially expand until it modifies at least one of an aspect of a shape of the interior area of the implanted stented device and an aspect of a shape of the valve region in which it is positioned.

19. The method of claim 18, wherein at least one of the first and second remodeling rings comprises a mesh tubular structure.

20. The method of claim 18, wherein at least one of the first and second remodeling rings comprises a frame structure and a covering over at least a portion of the frame structure.