US 8,465,485 B2Granted

Energy based devices and methods for treatment of patent foramen ovale

AssigneeTerumo Kabushiki Kaisha

InventorsWilliam Malecki, Dan Francis, Kenneth Horne, Mark E. Deem, Hanson Gifford, Jose Alejandro

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Abstract

Methods, devices and systems for treating patent foramen ovale (PFO) involve advancing a catheter device to a position in a heart for treating a PFO, bringing tissues adjacent the PFO at least partially together, and applying energy to the tissues to substantially close the PFO acutely. Catheter devices generally include an elongate catheter body, at least one tissue apposition member at or near the distal end for bringing the tissues together, and at least one energy transmission member at or near the distal end for applying energy to the tissues. In some embodiments, the tissue apposition member(s) also act as the energy transmission member(s). Applied energy may be monopolar or bipolar radiofrequency energy or any other suitable energy, such as laser, microwave, ultrasound, resistive heating or the like.

Claims2

Dependent claims

A catheter device for treating a patent foramen ovale in a heart, the heart including a septum secundum tissue and a septum primum tissue adjacent the patent foramen ovale, the catheter device comprising:

an elongate catheter body having a proximal end and a distal end;
a first tissue apposition member and a second tissue apposition member located at or near the catheter body distal end and configured to move so as to bring the septum primum and septum secundum tissues adjacent the patent foramen ovale at least partially together, the first tissue apposition member being configured contact the septum secundum tissue adjacent the patent foramen ovale from a right atrium of the heart without penetrating the septum secundum tissue, the second tissue apposition member being configured to pierce into the septum primum tissue of the heart;
and
at least one energy transmission member at or near the distal end for applying energy to the tissues to substantially close the patent foramen ovale acutely,
wherein the first and second tissue apposition members comprise a clamp for clamping the tissues together.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/234,908Filed 16 Sep 2011 · continuation
Priority: 27 Mar 2003
Published: US 2012/0010607 A112 Jan 2012
Granted: 18 Jun 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

A61B 18/1492
Probes or electrodes therefor: having a flexible, catheter-like structure, e.g. for heart ablation
A61B 18/1445
Probes having pivoting end effectors, e.g. forceps: at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
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 2017/00867
Material properties: shape memory effect

Family

Application60/458,854Us provisional application · filed 27 Mar 2003
Application60/478,035Us provisional application · filed 11 Jun 2003
Application60/490,082Us provisional application · filed 24 Jul 2003
Application10/787,532Parent of this division · filed 25 Feb 2004
Application11/622,194Parent of this continuation · filed 11 Jan 2007
US 2012/0010607 A1Pre-grant publication · published 12 Jan 2012
US 8,052,678 B2Parent of this continuation
US 7,186,251 B2Parent of this division
Application11/622,194Parent of this division
US 2004/0230185 A1Published application
US 2007/0112347 A1Published application
US 8,465,485 B2This patent

From the US filing history. Foreign family members aren’t listed.

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