Catching mechanisms for tubular septal occluder

• US 8,257,389 B2
• Filed: 05/04/2005
• Issued: 09/04/2012
• Est. Priority Date: 05/07/2004
• Status: Active Grant

• Current Assignee: WL Gore and Associates Incorporated (W.L. Gore and Associates)
• Original Assignee: WL Gore and Associates Incorporated (W.L. Gore and Associates)
• Inventors: Chanduszko, Andrzej J., Widomski, David R., Devellian, Carol A.
• Primary Examiner(s): Dornbusch, Dianne
• Application Number:
  US11/121,833
• Publication Number:
  US 20050273135A1
• Time in Patent Office: 2,680 Days
• Field of Search: 606/151, 606/153, 606/213, 606/215, 604107-109
• 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 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00606 Implements H-shaped in cross-section, i.e. with occluders on both sides of the opening
• CPC Class Codes: A61B 2017/00619 Locking means for locking the implement in expanded state
• CPC Class Codes: A61B 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014

Abstract

A septal occluder, such as one made from a polymer tube, can have portions on either side of a patent foramen ovale (PFO) or other septal defect. The portions on either side can be held in place with a catching mechanism that can take one of many forms. The tube can be made of bioresorbable materials.

Claims

1. A device for occluding a septal defect, the device comprising:

a distal portion having a distal end;

a proximal portion having a proximal end;

a center portion between the distal portion and the proximal portion; and

a single piece catching member extending in a lengthwise direction from the distal end towards the proximal end;

wherein the catching member comprises an end cap fixedly attached to the distal end of the distal portion of the device and a latching element on a proximal end of the catching member that releasably connects to a delivery shaft, the latching element being deformable and being configured to pass through the center portion and the proximal portion, and to engage the proximal end of the device.

2. The device of claim 1, wherein at least one of the distal and proximal portions comprises a plurality of loops.

3. The device of claim 1, wherein the device is adapted to close a patent foramen ovale (PFO).

4. The device of claim 3, wherein the distal and proximal portions each include a plurality of loops.

5. The device of claim 1, wherein the distal and proximal portions each include a plurality of loops.

6. The device of claim 1, wherein the proximal end of the catching member has the shape of an arrowhead.

7. The device of claim 1, wherein the device is made of bioresorbable materials.

9. The device of claim 1, wherein the latching element comprises means for allowing the latching element to be pulled through the proximal end.

8. A device for occluding a septal defect, the device comprising:

a distal portion having a distal end;

a proximal portion having a proximal end;

a center portion between the distal portion and the proximal portion; and

a single piece catching member extending in a lengthwise direction from the distal end towards the proximal end;

wherein the catching member is radially compressible, and the catching member comprises an end cap fixedly attached to the distal end of the distal portion of the device and a latching element on a proximal end of the catching member that releasably connects to a delivery shaft, the latching element comprising at least one protrusion extending away from the lengthwise direction and being configured to pass through the center portion and extend through the proximal portion of the device.