Heart wall ablation/mapping catheter and method

Details Heart wall ablation/mapping catheter and method Heart wall ablation/mapping catheter and method

A - Human Necessities

61

B

A61B 18/14 (2006.01) A61M 25/01 (2006.01) A61B 17/00 (2006.01)

Patent

CA 2425640

Steerable electrophysiology catheters for use in mapping and/or ablation of accessory pathways in myocardial tissue of the heart wall and methods of use thereof are disclosed. The catheter comprises a catheter body and handle, the catheter body having a proximal section and a distal section and manipulators that enable the deflection of a distal segment of the distal tip section with respect to the independently formed curvature of a proximal segment of the distal tip section through a bending or knuckle motion of an intermediate segment between the proximal and distal segments. A wide angular range of deflection within a very small curve or bend radius in the intermediate segment is obtained.

L'invention concerne des cathéters d'électrophysiologie orientables, conçus pour la cartographie et/ou l'ablation de voies accessoires, dans le tissu myocardique de la paroi cardiaque, ainsi que des procédés d'utilisation de ceux-ci. Ce cathéter comprend un corps et un manche, le corps possédant une section proximale et une section distale, de même que des éléments manipulateurs permettant la flexion d'un segment distal de la section d'extrémité distale par rapport à une courbure formée indépendamment d'un segment proximal de la section d'extrémité distale, par l'intermédiaire de la pliure ou de la formation d'un coude d'un segment intermédiaire situé entre le segment proximal et le segment distal. Il est possible d'obtenir une large gamme angulaire de flexions dans un très petit rayon de courbure ou de pliure, dans le segment intermédiaire.

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