Defibrillation electrode and method for employing gatling...

A - Human Necessities – 61 – N

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A61N 1/39 (2006.01) A61B 5/042 (2006.01) A61N 1/05 (2006.01)

Patent

CA 2064751

An implantable defibrillation/cardioversion system and method comprising an electrode having a plurality of discrete electrically conductive segments. The conductive segments are electrically isolated from each other and electrically connected to a defibrillation/cardioversion unit. An electrical pulse block is generated and chopped into a plurality of discrete pulse segments by the defibrillation/cardioversion unit and applied to the electrode so that each conductive segment receives a particular electrical pulse assigned from the series of pulses. In this way, the concentration of gas generated from ionic current produced by a high energy defibrillation pulse is reduced and more energy is delivered to the heart, thus reducing the required energy input to the electrode. The electrode may be planar or in a catheter electrode configuration.

Système de défibrillation/cardioversion implantable et méthode se servant d'une électrode composée d'une multitude de segments conducteurs distincts. Ces derniers sont isolés les uns des autres et connectés électriquement à une unité de défibrillation/cardioversion qui produit un bloc d'impulsions électriques et coupe ce dernier en une multitude de segments d'impulsions distincts qui sont appliqués à l'électrode. Ainsi, chaque segment conducteur reçoit une impulsion électrique précise attribuée à partir des séries d'impulsions. De cette façon, la concentration de gaz provenant du courant ionique, produit par une impulsion de défibrillation à haute énergie, est réduite, et une plus grande quantité d'énergie est acheminée au coeur, ce qui permet de réduire l'intrant énergétique nécessaire pour l'électrode. Cette dernière peut être plane ou en forme de cathéter.

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