Retrievable cardiac devices

• US 9,872,767 B2
• Filed: 04/08/2015
• Issued: 01/23/2018
• Est. Priority Date: 08/09/1999
• Status: Active Grant

• Current Assignee: Edwards Lifesciences Corporation
• Original Assignee: Edwards Lifesciences Corporation
• Inventors: Khairkhahan, Alexander
• Primary Examiner(s): BUI, VY Q
• Application Number:
  US14/681,930
• Publication Number:
  US 20150209144A1
• Time in Patent Office: 1,021 Days
• 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 17/12022 Occluding by internal devices, e.g. balloons or releasable wires plugging an opening in the wall of an organ A61B17/0057; occluders for the cervical canal A61F6/146; vas deferens occluders A61F6/20
• CPC Class Codes: A61B 17/12122 within the heart for closing a cardiac septal defect A61B17/0057
• CPC Class Codes: A61B 17/12172 having a pre-set deployed three-dimensional shape methods of manufacturing A61B2017/00526
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 2017/00243 cardiac
• CPC Class Codes: A61B 2017/00575 for closure at remote site, e.g. closing atrial septum defects
• CPC Class Codes: A61B 2017/00579 Barbed implements
• CPC Class Codes: A61B 2017/00592 Elastic or resilient implements
• CPC Class Codes: A61B 2017/00597 Implements comprising a membrane
• CPC Class Codes: A61B 2017/00615 Implements with an occluder on one side of the opening and holding means therefor on the other
• CPC Class Codes: A61B 2017/00632 Occluding a cavity, i.e. closing a blind opening
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/0649 Coils or spirals
• CPC Class Codes: A61B 2017/12054 Details concerning the detachment of the occluding device from the introduction device
• CPC Class Codes: A61B 2017/12095 Threaded connection
• CPC Class Codes: A61F 2/2427 Devices for manipulating or deploying heart valves during implantation
• CPC Class Codes: A61F 2/2487 Devices within the heart chamber, e.g. splints
• CPC Class Codes: A61F 2002/2484 Delivery devices therefor
• CPC Class Codes: A61F 2250/0003 having an inflatable pocket filled with fluid, e.g. liquid or gas

Abstract

Removable cardiac implants, applicators for inserting, repositioning and/or removing them, and methods of using them are described. In particular, removable or repositionable ventricular partitioning devices are described. Systems including removable implants and applicators for inserting and/or removing them are also described.

Claims

1. A method for removing or repositioning an implant in a heart chamber, the implant including a plurality of self-expanding struts and a strand extending transversely across the struts, the method comprising:

providing an applicator comprising an elongate body having a proximal end, a distal end, and a strand capture element extendable from the distal end;

inserting the distal end of the applicator into the heart chamber;

extending the strand capture element from the distal end of the applicator;

engaging the strand with the strand capture element;

tensioning the strand with the strand capture element to collapse the self-expanding struts of the implant; and

withdrawing at least a portion of the collapsed self-expanding struts of the implant into the distal end of the applicator.

2. The method of claim 1, wherein the applicator further comprises an implant stabilizing shaft extendable from the distal end of the applicator.

3. The method of claim 2, further comprising:

extending the implant stabilizing shaft from the distal end of the applicator; and

engaging the implant with the implant stabilizing shaft.

4. The method of claim 1, wherein the applicator further comprises a control at the proximal end of the elongate body that is configured to manipulate the strand capture element.

5. The method of claim 1, wherein the strand capture element is a hook.

6. The method of claim 1, wherein the strand capture element is a grasper.

7. The method of claim 1, wherein the strand capture element is a jaw.

8. The method of claim 1, wherein the strand is tensioned with the strand capture element by withdrawing the strand capture element proximally into the applicator.

9. The method of claim 1, further comprising pushing the implant distally to disengage the implant from a wall of the heart chamber.

10. The method of claim 1, wherein the applicator further comprises an implant capture umbrella extendable from the distal end of the applicator.

11. The method of claim 10, further comprising extending the implant capture element distally out of the applicator and over at least a portion of the collapsed self-expanding struts of the implant.

12. The method of claim 1, wherein the applicator further comprises an inflatable everting cuff located on the distal end of the applicator.

13. The method of claim 12, further comprising inflating the inflatable everting cuff until the inflatable everting cuff extends over at least a portion of the collapsed self-expanding struts of the implant.

14. A method for removing or repositioning an implant in a heart chamber, the implant including a plurality of self-expanding struts and a strand extending transversely across the struts, the method comprising:

inserting an applicator into the heart chamber, the applicator comprising an elongate body having a proximal end, a distal end, a lumen extending therethrough, an implant capture umbrella extendable from the distal end of the applicator, and at least one end of the strand of the implant extending proximally into the lumen of the applicator;

pulling the at least one end of the strand to collapse the self-expanding struts of the implant;

extending the implant capture element distally out of the applicator and over at least a portion of the collapsed self-expanding struts of the implant; and

withdrawing at least a portion of the collapsed self-expanding struts of the implant into the distal end of the applicator.

15. The method of claim 14, wherein the applicator further comprises an implant stabilizing shaft extendable from the distal end of the applicator.

16. The method of claim 15, further comprising:

extending the implant stabilizing shaft from the distal end of the applicator; and

engaging the implant with the implant stabilizing shaft.

17. The method of claim 14, wherein the applicator further comprises an inflatable everting cuff located on the distal end of the applicator.

18. The method of claim 17, further comprising inflating the inflatable everting cuff until the inflatable everting cuff extends over at least a portion of the collapsed self-expanding struts of the implant.

19. A method for removing or repositioning an implant in a heart chamber, the implant including a plurality of self-expanding struts and a strand extending transversely across the struts, the method comprising:

providing an applicator comprising an elongate body having a proximal end, a distal end, and a strand capture element extendable from the distal end;

inserting the distal end of the applicator into the heart chamber;

extending the strand capture element from the distal end of the applicator;

engaging the strand with the strand capture element; and

tensioning the strand with the strand capture element to collapse the self-expanding struts of the implant.

20. The method of claim 19, further comprising repositioning the implant.

21. The method of claim 20, further comprising releasing the strand from the strand capture element to expand the self-expanding struts of the implant.