Patent ID: 9011425
Filing Date: 2015-04-21
Classification: A61B

Abstract:
1. An ablation device, the ablation device comprising: a positioning catheter adapted to be positionable in a heart and comprising a fixation mechanism for fixing the positioning catheter in the heart; an ablation catheter adapted to ablate material of the heart using the ablation catheter; wherein the ablation device is designed to form a continuous elongated lesion and to ablate tissue selectively along an isthmus of the heart; wherein the positioning catheter and the ablation catheter are provided to be movable relative to one another; wherein the ablation catheter can be guided via sleeves at the positioning catheter; wherein the positioning catheter comprises electrodes for recording signals to be analyzed for positioning a slidable ablation element of the ablation catheter along the positioning catheter such that the isthmus can be ablated; wherein the electrodes are arranged proximal from the fixation mechanism along an extension of the positioning catheter, wherein a portion of the extension is abutable against the isthmus; wherein the ablation element comprises a tubular body defining an inner lumen; and wherein the tubular body is configured to have a spatially varying value of thermal conductivity along a circumference of the tubular body.