Retrievable cardiac devices

• US 9,017,394 B2
• Filed: 07/30/2013
• Issued: 04/28/2015
• Est. Priority Date: 08/09/1999
• Status: Expired due to Fees

• Current Assignee: Edwards Lifesciences Corporation
• Original Assignee: Cardiokinetix Incorporated
• Inventors: Khairkhahan, Alexander
• Primary Examiner(s): Bui, Vy Q
• Application Number:
  US13/954,221
• Publication Number:
  US 20130317537A1
• Time in Patent Office: 637 Days
• Field of Search: 606/200, 606/191, 606/194, 606/195, 606/198, 623/1.11, 623/1.15
• US Class Current: 623/1.11
• 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 partitioning a patient'"'"'s heart chamber into a main functional portion and a secondary non-functional portion, the method comprising:

providing an applicator comprising an elongate body having a proximal portion, a distal portion, a lumen extending therethrough, an implant having a plurality of self-expanding struts and a membrane secured to the struts, the implant disposed within the lumen in the distal portion of the elongate body, and a tether removably attached to the implant and extending within the lumen to the proximal portion of the elongate body;

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

deploying the implant from the applicator to a first position in the heart chamber such that the tether remains attached to the implant and within the proximal portion of the elongate body; and

partitioning the heart chamber into the main functional portion and the secondary non-functional portion by expanding the self-expanding struts of the implant in the heart chamber.

2. The method of claim 1, further comprising removing the tether from the implant after the heart chamber is partitioned.

3. The method of claim 1, wherein the tether extends around a peripheral portion of the membrane and transversely across the self-expanding struts.

4. The method of claim 1, wherein the implant further comprises a hub having a foot region, wherein the tether is attached to the foot region of the hub.

5. The method of claim 1, further comprising retracting the tether to collapse the self-expanding struts.

6. The method of claim 5, further comprising repositioning the implant within the heart chamber and redeploying the implant to a second position in the heart chamber.

7. The method of claim 5, further comprising removing the implant from the heart chamber.