A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 18/14 (2006.01) A61B 18/24 (2006.01) A61N 5/06 (2006.01) A61N 5/067 (2006.01)
Patent
CA 2569214
Ablation instruments and methods are disclosed for ablating diseased tissue such as cardiac tissue. The method includes introducing a flexible elongate member into a predetermined tissue site with a flexible elongate member having a proximal end, a distal end and a longitudinal lumen extending therebetween. A slidable conductor is positioned through the lumen proximate to the tissue site and energy is transmitted to the distal end of the elongate member through the conductor. The flexible elongate member is both longitudinally flexible and resists twisting during bending. The target tissue is ablated, coagulated or photochemically modulated without damaging surrounding tissue.
L'invention concerne des instruments et des procédés d'ablation pour enlever du tissu malade tel que du tissu cardiaque. Selon l'invention, on introduit un élément allongé souple dans un site tissulaire déterminé, l'élément allongé souple ayant une extrémité proximale, une extrémité distale et une lumière longitudinale intermédiaire. Un conducteur coulissant est positionné à travers la lumière à proximité du site tissulaire et de l'énergie est transmise à l'extrémité distale de l'élément allongé par le conducteur. L'élément allongé souple est également flexible longitudinalement et résiste à la torsion lors de son fléchissement. L'invention permet d'enlever, de coaguler ou de modifier photochimiquement le tissu cible sans endommager le tissu environnant.
Bulman Erik
Dang Ninh Huu
Murphy John
Nieman Tim
Pruitt Tazi
Edwards Lifesciences Corporation
Stikeman Elliott S.e.n.c.r.l.,srl/llp
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