Apparatus for ablation

A - Human Necessities – 61 – N

Patent

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A61N 1/05 (2006.01) A61M 25/00 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2168660

An ablation catheter and a method of performing cardiac ablation using alcohol or other ablating agents. The catheter is provided with a helical hollow needle, which is screwed into heart tissue, after which the ablating agent is delivered tbrough the needle. Prior to ablation, the catheter may be employed to locate an appropriate ablation site or to assess the suitability of an identified ablation site by injection of an excitability reducing agent such as lidocaine, tbrough the hollow needle, followed by a determination of whether the arrhythmia intended to be treated as terminated.

L'invention se rapporte à un cathéter d'ablation et à un procédé d'exécution d'une ablation du tissu cardiaque au moyen d'alcool ou d'autres agents d'ablation. Le cathéter est pourvu d'une aiguille creuse hélicoïdale qui est vissée dans le tissu cardiaque et au moyen de laquelle est ensuite administré l'agent d'ablation. Avant l'ablation, le cathéter peut être utilisé pour localiser un site d'ablation approprié ou pour tester si un site d'ablation identifié est approprié en injectant un agent réduisant l'excitabilité, tel que la lidocaïne, au moyen de l'aiguille creuse, puis en déterminant si l'arythmie qu'il était prévu de traiter provisoirement cessé.

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