Methods and apparatus employing ionizing radiation for...

Details Methods and apparatus employing ionizing radiation for... Methods and apparatus employing ionizing radiation for...

A - Human Necessities

61

N

A61N 5/00 (2006.01) A61M 37/00 (2006.01) A61N 5/10 (2006.01)

Patent

CA 2460174

Method and apparatus (20) employing ionizing radiation for forming lines of ablation or lesions in cardiac tissue to treat atrial fibrillation or other electrophysiological problems with the heart. The apparatus (20) may include a catheter (20) in which a radiation source (42) is advanced hydraulically after the catheter (20) is in place within the heart. Various fixation devices (72) are also disclosed for fixing the location of the catheter (20) within the heart.

L'invention concerne une méthode et un dispositif utilisant un rayonnement ionisant pour former des lignes d'ablation ou des lésions dans le tissu cardiaque en vue de traiter la fibrillation auriculaire ou d'autres problèmes électrophysiologiques cardiaques. Ce dispositif peut comprendre un cathéter dans lequel on introduit la source de rayonnement par voie hydraulique après la mise en place dudit cathéter dans le coeur. L'invention concerne également plusieurs dispositifs de fixation permettant d'immobiliser ce cathéter dans le coeur.

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