Ablation catheter and method for isolating a pulmonary vein
First Claim
1. A catheter assembly comprising:
- a catheter body including a proximal portion, an intermediate portion extending from the proximal portion, the intermediate portion defining a longitudinal axis, and a distal portion extending from the intermediate portion, the distal portion forming a loop including one or more loop segments formed around a central loop axis, the on or more loop segments including at least one ablation electrode coupled thereto and the central loop axis substantially parallel with the longitudinal axis; and
a locating device including a distal tip extending from the distal portion of the catheter body, the distal tip substantially parallel with the central loop axis;
wherein the at least one ablation electrode is adapted to create a lesion, the lesion electrically isolating a vessel from a chamber for treatment of a cardiac arrhythmia.
0 Assignments
0 Petitions
Accused Products
Abstract
A catheter body of a catheter assembly includes a proximal portion, an intermediate portion extending from the proximal portion, a distal portion extending from the intermediate portion, and a locating device including a distal tip extending from the distal portion of the catheter body. The intermediate portion defines a longitudinal axis and the distal portion forms a loop including one or more loop segments formed around a central loop axis. The central loop axis is substantially parallel with the longitudinal axis and the one or more loop segments include at least one ablation electrode coupled thereto and adapted to create a lesion, the lesion electrically isolating a vessel from a chamber for treatment of a cardiac arrhythmia. The distal tip of the locating device is substantially parallel with the central loop axis.
-
Citations
14 Claims
-
1. A catheter assembly comprising:
-
a catheter body including a proximal portion, an intermediate portion extending from the proximal portion, the intermediate portion defining a longitudinal axis, and a distal portion extending from the intermediate portion, the distal portion forming a loop including one or more loop segments formed around a central loop axis, the on or more loop segments including at least one ablation electrode coupled thereto and the central loop axis substantially parallel with the longitudinal axis; and
a locating device including a distal tip extending from the distal portion of the catheter body, the distal tip substantially parallel with the central loop axis;
wherein the at least one ablation electrode is adapted to create a lesion, the lesion electrically isolating a vessel from a chamber for treatment of a cardiac arrhythmia. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method for forming an ablation pattern to electrically isolate a pulmonary vein for treatment of cardiac arrhythmia, comprising:
-
directing a distal tip of a catheter body to locate a pulmonary vein from within a left atrium, the distal tip extending from a distal portion of the catheter body, the distal portion forming a loop including at least one ablation electrode coupled thereto;
inserting the distal tip into the pulmonary vein to center the loop about an ostium of the pulmonary vein; and
energizing the ablation electrode to form the ablation pattern. - View Dependent Claims (12)
-
-
13. A catheter assembly, comprising:
-
a catheter body including a proximal portion, an intermediate portion extending from the proximal portion, the intermediate portion defining a longitudinal axis, and a distal portion extending from the intermediate portion, the distal portion forming a loop including one or more loop segments formed around a central loop axis, the one or more loop segments including at least one ablation electrode coupled thereto and the central loop axis substantially parallel with, and offset from the longitudinal axis; and
a locating device including a distal tip extending from the distal portion of the catheter body, the distal tip substantially aligned with the longitudinal axis;
wherein the at least one ablation electrode is adapted to create a lesion, the lesion electrically isolating a vessel from a chamber for treatment of a cardiac arrhythmia. - View Dependent Claims (14)
-
Specification