A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 18/18 (2006.01) A61B 18/14 (2006.01) A61F 2/82 (2006.01) A61B 18/02 (2006.01)
Patent
CA 2388823
A cardiac ablation catheter (100) includes a coil-like ablating element (102) that is deployed from an elongate, flexible sheath (104). The ablating element (102), while in the deployed position, has a shape with at least one revolution oriented in a plane that is orthogonal to a longitudinal axis (108) of the sheath. The catheter system (100) is well-suited to ablate a circumferential region of tissue about a pulmonary vein or the posterior wall of the left atrium proximate the pulmonary vein os. The treated tissue region electrically isolates the atria from the pulmonary vein.
Un cathéter d'ablation cardiaque (100) comporte un élément d'ablation du type spirale (102), qui saille en position déployée d'une gaine souple allongée (104). L'élément d'ablation (102), lorsqu'il est déployé, présente au moins une spire orientée dans un plan orthogonal à un axe longitudinal (108) de la gaine. Le système de cathéter (100) convient bien à l'ablation d'une zone circonférentielle de tissu autour d'une veine pulmonaire ou de la paroi postérieure de l'oreillette gauche, à proximité de la cavité de la veine pulmonaire. La zone de tissu traitée isole électriquement l'atrium de la veine pulmonaire.
Riches Mckenzie & Herbert Llp
The General Hospital Corporation D/b/a Massachusetts General Hos
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