Defibrillation by coordination with coarse vf complexes

A - Human Necessities – 61 – N

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A61N 1/39 (2006.01)

Patent

CA 2228891

A method and system for ventricular defibrillation by coordinating the delivery of defibrillation shocks with sensed ventricular fibrillation complexes in a way which improves the probability of success of the defibrillation shock. Ventricular electrical activity is monitored during VF to detect coarse VF complexes. The defibrillation shock is delivered in coordination with the occurrence of coarse VF complexes, and specifically to occur on the upslope portion thereof, for optimal probability of success. Preferably, DF shock is delivered on the nth occurring coarse VF complex, wherein n is equal to or greater than 2 and less than or equal to about 9.

Méthode et système de défibrillation ventriculaire par coordination de l'administration de chocs de défibrillation avec des complexes de fibrillation ventriculaire captés, selon une procédure qui améliore la probabilité de succès dudit choc. L'activité électrique ventriculaire est observée au cours d'une FV afin de détecter les complexes grossiers de FV. Le choc de défibrillation est administré en coordination avec les complexes grossiers de FV, et spécialement au cours de leur phase ascendante, pour obtenir une plus grande probabilité de succès. De préférence, le choc de défibrillation est administré à la n?ème¿ occurrence de complexes grossiers de FV, n étant égal ou supérieur à 2 et inférieur ou égal à 9 environ.

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