Method and devices for treating atrial fibrillation by mass...

A - Human Necessities – 61 – B

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A61B 18/14 (2006.01)

Patent

CA 2569701

Apparatus and method for ablating target tissue including a non-linear area of tissue in the left atrium of a patient. The method can include selecting an ablation apparatus having an ablator with a tissue engagement section, penetrating a chest cavity of the patient, and identifying the target tissue. The method can also include positioning the ablation apparatus adjacent to the target tissue so that the tissue engagement section can transfer ablation energy to the target tissue. The method can further include energizing the tissue engagement section with ablation energy in order to create a footprint on the non-linear area of tissue in the left atrium and to reduce an overall mass of excitable tissue in the left atrium.

Appareil et méthode pour l'ablation d'un tissu cible comprenant une surface non-linéaire de tissu dans l'oreillette gauche d'un patient. La méthode peut inclure la sélection d'un appareil d'ablation ayant un matériau d'ablation avec une section d'engagement de tissu, qui pénètre dans la cavité de la poitrine du patient et identifie le tissu cible. La méthode peut aussi comprendre le positionnement de l'appareil d'ablation près du tissu cible de façon que la section d'engagement du tissu puisse transférer l'énergie de l'ablation au tissu cible. La méthode peut aussi comprendre l'activation d'énergie de la section d'engagement du tissu avec l'énergie d'ablation de façon à créer une empreinte sur la surface non-linéaire du tissu dans l'oreillette gauche et à réduire une masse d'ensemble de tissu excitable dans l'oreillette gauche.

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