US 8,574,264 B2 · Method for retrieving a closure device

Abstract

A closure device for sealing a patent foramen ovale (PFO) in the heart includes a left atrial anchor adapted to be placed in a left atrium of the heart, a tether fixedly connected to the left atrial anchor and adapted to extend through the passageway of the PFO, a right atrial anchor adapted to be placed in a right atrium of the heart and moved along the tether, and a lock for securing the position of the right atrial anchor along the tether. The left and right atrial anchors preferably include a plurality of arms formed as loops and may include means for securing each arm in case of fracture in the loop. After the closure device is positioned, a cutting tool may sever the portion of the tether proximal of the right atrial anchor. The closure device can be retrieved during delivery, including by use of a snare catheter.

Claims27

Dependent claims

A method for retrieving a device for sealing a passageway in a heart, comprising:

advancing a snare catheter through a guide catheter and external to a delivery catheter toward the passageway covered by a second anchor of the device, the delivery catheter being configured to abut a feature of the second anchor to move the second anchor along an elongate member;
engaging the feature of the second anchor with a snare of the snare catheter after the step of advancing the snare catheter through the guide catheter;
and
drawing the second anchor into the guide catheter along the elongate member with the snare.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

11/522,158Filed 16 Sep 2006 · division

Priority

11 Apr 2003

Published

US 2007/0016250 A118 Jan 2007

Granted

5 Nov 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

A61B 17/0057
Surgical instruments, devices or methods: implements for plugging an opening in the wall of a hollow or tubular organ, e.g. for sealing a vessel…
A61B 90/39
Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00,…
A61B 2017/00575
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…
A61B 2017/00592
For closure at remote site, e.g. closing atrial septum defects: elastic or resilient implements

Method for retrieving a closure device

Life of this patent

Method for retrieving a closure device

Life of this patent

Abstract

Claims27