The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2005
Filed:
Apr. 16, 2003
Mark T. Stewart, Lino Lakes, MN (US);
William J. Flickinger, Lino Lakes, MN (US);
David E. Francischelli, Anoka, MN (US);
Rahul Mehra, Stillwater, MN (US);
Xiaoyi Min, Plymouth, MN (US);
Mark T. Stewart, Lino Lakes, MN (US);
William J. Flickinger, Lino Lakes, MN (US);
David E. Francischelli, Anoka, MN (US);
Rahul Mehra, Stillwater, MN (US);
Xiaoyi Min, Plymouth, MN (US);
Medtronic, Inc., Minneapolis, MN (US);
Abstract
A catheter assembly and method for treatment of cardiac arrhythmia, for example, atrial fibrillation, by electrically isolating a vessel, such as a pulmonary vein, from a chamber, such as the left atrium. The catheter assembly includes a catheter body and at least one electrode. The catheter body includes a proximal portion, an intermediate portion and a distal portion. The intermediate portion extends from the proximal portion and defines a longitudinal axis. The distal portion extends from the intermediate portion and forms a substantially closed loop transverse to the longitudinal axis. The at least one electrode is disposed along the loop. With this configuration, the loop is axially directed into contact with the chamber wall about the vessel ostium. Upon energization, the electrode ablates a continuous lesion pattern about the vessel ostium, thereby electrically isolating the vessel from the chamber.