System and method for delivering energy to tissue

A - Human Necessities – 61 – N

Patent

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A61N 7/02 (2006.01) A61B 18/12 (2006.01)

Patent

CA 2730781

An ablation system for treating atrial fibrillation in a patient comprises an elongate shaft having proximal and distal ends, a lumen therebetween and a housing adjacent the distal end of the elongate shaft. An energy source is coupled to the housing and is adapted to deliver energy to a target tissue so as to create a zone of ablation in the target tissue that blocks abnormal electrical activity thereby reducing or eliminating the atrial fibrillation in the patient. A sensor is adjacent the energy source and adapted to detect relative position of the energy source to the target tissue or characteristics of the target tissue. The system also has a reflecting element operably coupled with the energy source and adapted to redirect energy emitted from the energy source in a desired direction or pattern.

L'invention concerne un système d'ablation, pour traiter une fibrillation auriculaire chez un patient, qui comporte un arbre allongé ayant des extrémités proximale et distale, une lumière située entre celles-ci et un boîtier adjacent à l'extrémité distale de l'arbre allongé. Une source d'énergie, qui est couplée au boîtier, est conçue  pour administrer de l'énergie à un tissu cible de manière à créer une zone d'ablation dans le tissu cible qui bloque une activité électrique anormale, réduisant ou éliminant ainsi la fibrillation auriculaire du patient. Un capteur, qui est adjacent à la source d'énergie, est conçu  pour détecter une position relative de la source d'énergie, par rapport au tissu cible, ou des caractéristiques du tissu cible. Le système a également un élément réfléchissant couplé de manière opérationnelle à la source d'énergie et conçu pour rediriger l'énergie émise depuis la source d'énergie dans la direction ou le motif voulu.

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