CLOSURE DEVICE AND METHODS AND SYSTEMS FOR USING SAME

• US 20120083832A1
• Filed: 06/03/2010
• Published: 04/05/2012
• Est. Priority Date: 06/03/2009
• Status: Abandoned Application

• Current Assignee: Symetis SA (Boston Scientific Corporation)
• Original Assignee: Symetis SA (Boston Scientific Corporation)
• Inventors: Delaloye, Stephane, Hefti, Jean-luc, Passerini, Reynald
• Application Number:
  US13/375,825
• Publication Number:
  US 20120083832A1
• Time in Patent Office: Days
• US Class Current: 606/213
• CPC Class Codes: A61B 17/0057 Implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel puncture or closing a cardiac septal defect sutures A61B17/04; closing rectum or urethra near body surface A61F2/0009
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/0061 Implements located only on one side of the opening
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/00628 T-shaped occluders
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61F 2/2418 Scaffolds therefor, e.g. support stents

Abstract

Embodiments of the present disclosure are directed to apical closure systems, devices, and methods and systems for use thereof, for closing surgical openings or defects in the wall of the heart.

Claims

1. A closure device implantable via an access opening in the ventricle wall of a heart and operative to close the access opening, the device comprising:

a support structure collapsible to a delivery state for implantation via the access opening, the support structure being self-expandable when released to expand to a deployed state in which the support structure defines at least (i) a first portion configured for positioning within the access opening, and (ii) a flange portion coupled to the first portion and configured for positioning substantially flat against the ventricle wall to prevent migration of the closure device in at least one direction following implantation; and

a cover to at least partially cover the outer surface of the support structure.

2. The closure device of claim 1, wherein the flange portion is coupled to a distal portion of the first portion for bearing against the interior surface of the ventricle wall to prevent migration of the closure device in a direction out of the ventricle.

3. The closure device of claim 1, further comprising at least one protrusion to engage the ventricle wall for preventing migration of the closure device into the ventricle, the protrusion being configured to project not more than between about 0.001 mm and about 2 mm from the exterior surface of the ventricle wall.

4. The closure device of claim 3, wherein the protrusion is configured to at least one of (i) engage a portion of the ventricle wall inside the access opening;

(ii) conform to the exterior surface of the ventricle wall; and

(iii) comprise the proximal flange coupled to the first portion by a resilient coupling.

5. The closure device of claim 1, wherein the flange portion is coupled to a proximal portion of the first portion for bearing against the exterior surface of the ventricle wall.

28. The closure device of claim 1, wherein the support structure is a self-expandable meshed metallic support structure.

29. The closure device claim 1, wherein the diameter of the flange portion is between about 13 mm to about 40 mm.

6-7. -7. (canceled)

9. (canceled)

10. A closure device implantable via an access opening in the ventricle wall of a heart and operative to close the access opening, the device comprising:

a support structure collapsible to a delivery state for implantation via the access opening, the support structure being self-expandable when released to expand to a deployed state in which the support structure defines at least (i) a first portion configured for positioning within the access opening, and (ii) an anchor portion coupled to the first portion and configured for bearing against the ventricle wall to prevent migration of the closure device in at least one direction following implantation, the anchor portion comprising a plurality of radially outwardly projecting independent spokes; and

a cover for at least partially covering the outer surface of the support structure.

12. The closure device of claim 10, wherein each spoke comprises first and second struts coupled at their tips remote from the first portion.

13. The closure device of claim 10, wherein the cover includes a portion having a shape formed as a sequence of petals aligned with the spokes.

11. (canceled)

14. A device for closing an access opening in the ventricle wall of a heart comprising:

a support structure having a lumen;

a cover for at least partially covering the outer surface of the support structure; and

a plug for substantially filling the lumen of the support structure.

15. The closure device of claim 14, wherein the support structure comprises a flange portion, a cylindrical portion, and an optional outwardly expanding conical portion.

16. The closure device of claim 15, wherein the diameter of the cylindrical portion exceeds the apical opening diameter.

17. The closure device of claim 15, wherein the diameter of the cylindrical portion is between about 8 mm to about 18 mm.

18. The closure device of claim 15, wherein the length of the cylindrical portion is between about 10 mm to about 25 mm.

19. The closure device of claim 15, wherein the length of the cylindrical portion and the optional outwardly expanding conical portion is between about 10 mm to about 25 mm.

20. The closure device of claim 15, wherein the length of the cylindrical portion is from about 6 to about 16 mm and the length of the outwardly expanding conical portion is from about 4 mm to about 10 mm.

21. The closure device of claim 15, wherein the angle that defines the outward deflection of an optional third conical portion of the support structure is between about 0°

to 20°

.

24. The closure device of claim 14, wherein the plug is capable of being punctured and passed through by a guidewire.

22-23. -23. (canceled)

25-27. -27. (canceled)

30-39. -39. (canceled)