Heart anchor device

• US 10,357,357 B2
• Filed: 06/15/2017
• Issued: 07/23/2019
• Est. Priority Date: 01/23/2006
• Status: Active Grant

• Current Assignee: V-Wave Ltd.
• Original Assignee: V-Wave Ltd.
• Inventors: Levi, Tamir, Rosenberg, Meir, Ben-Amotz, Ori, Rozy, Yoram, Benbenisti, Eyal, Shafrir, Roey, Kopelman, Doron, Cohen, Itshak, Harel, Tamar
• Primary Examiner(s): Prone, Christopher D.
• Assistant Examiner(s): Shipmon, Tiffany P
• Application Number:
  US15/624,314
• Publication Number:
  US 20170281339A1
• Time in Patent Office: 768 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 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• CPC Class Codes: A61B 2017/00017 Electrical control of surgical instruments
• CPC Class Codes: A61B 2017/00035 pH
• CPC Class Codes: A61B 2017/00084 Temperature
• CPC Class Codes: A61B 2017/00398 using powered actuators, e.g. stepper motors, solenoids
• CPC Class Codes: A61B 2017/00411 actuated by application of energy from an energy source outside the body
• CPC Class Codes: A61B 2017/00557 inflatable A61B2017/22051 takes precedence
• 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 2017/00597 Implements comprising a membrane
• 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 2017/00623 Introducing or retrieving devices therefor
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/00853 low friction, hydrophobic and corrosion-resistant fluorocarbon resin coating (ptf, ptfe, polytetrafluoroethylene)
• CPC Class Codes: A61B 2017/00862 elastic or resilient for sutures A61B2017/0618
• CPC Class Codes: A61B 2017/00867 shape memory effect for prostheses A61F2210/0014
• CPC Class Codes: A61B 2017/061 hollow or tubular suture extending inside a hollow needle A61B2017/06052; hollow sutures A61B2017/06185
• CPC Class Codes: A61F 2/2409 Support rings therefor, e.g. for connecting valves to tissue annuloplasty rings A61F2/2442

Abstract

A medical implant including an anchor portion including a plurality of arms adapted to engage an internal tissue wall of a body from two opposite faces, wherein the anchor portion is configured such that at least one of the arms does not have an entirely overlapping arm on the other side of the wall and an opening portion adapted to define an opening for blood flow through the internal tissue wall, when the anchor portion engages the wall.

Claims

1. A method for retrieving a shunt implanted at an atrial septum of a patient, the method comprising:

advancing a sheath percutaneously to a first atrium to position a distal end of the sheath adjacent to the shunt;

moving a core within a lumen of the sheath such that one or more protrusions of the core extend distally out the distal end of the sheath and are in proximity to a first expandable end of the shunt in the first atrium;

coupling the one or more protrusions to the first expandable end of the shunt;

retracting the core proximally relative to the sheath to transition the first expandable end of the shunt coupled to the one or more protrusions of the core from an expanded state at the atrial septum to a contracted state;

moving the sheath distally relative to the core such that the first expandable end of the shunt in the contracted state moves into the lumen of the sheath;

moving the sheath distally relative to the core through the atrial septum such that a second expandable end of the shunt disposed in a second atrium transitions from an expanded state at the atrial septum to a contracted state and moves into the lumen of the sheath; and

moving the sheath and the shunt proximally to remove the sheath and the shunt from the patient.

2. The method of claim 1, wherein coupling the one or more protrusions to the first expandable end of the shunt comprises engaging the one or more protrusions with a retrieval element at the expandable end of the shunt.

3. The method of claim 2, wherein the one or more protrusions comprise a hook configured to engage the retrieval element.

4. The method of claim 2, wherein retracting the core proximally relative to the sheath causes the one or more protrusions to pull the retrieval element to transition the first expandable end of the shunt from an expanded state at the atrial septum to a contracted state.