Augmentation of electrical conduction and contractility by...

A - Human Necessities – 61 – N

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A61N 1/362 (2006.01)

Patent

CA 2290600

Augmentation of electrical conduction and contractility by biphasic cardiac pacing. A first stimulation phase is administered to the muscle tissue. This first stimulation phase has a predefined polarity, amplitude and duration. A second stimulation phase is then administered to the muscle tissue. This second phase also has a predefined polarity, amplitude and duration. The two phases are applied sequentially. Contrary to current thought, anodal stimulation is first applied, followed by cathodal stimulation. In this fashion, pulse conduction through the cardiac muscle is improved together with an increase in contractility. The technique can also be applied to large muscle tissue stimulation other than cardiac muscle.

L'invention concerne l'augmentation de la conduction et de la contractilité électriques par stimulation diphasique du coeur. On administre tout d'abord une première phase de stimulation au tissu musculaire, cette première phase de stimulation présentant une polarité, une amplitude, et une durée prédéfinies. On administre ensuite une seconde phase de stimulation à ce tissu musculaire, cette seconde phase de stimulation présentant également une polarité, une amplitude, et une durée prédéfinies. Ces deux phases sont donc appliquées de manière séquentielle, et contrairement à ce que l'on croit généralement, on applique tout d'abord une stimulation anodique avant d'appliquer une stimulation cathodique, afin d'améliorer la conduction des impulsions dans le muscle cardiaque et d'augmenter la contractilité. Cette technique peut en outre s'appliquer à une stimulation des tissus du grand muscle, et non seulement du muscle cardiaque.

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