Method and apparatus for monitored biphasic cardiac...

A - Human Necessities – 61 – N

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A61N 1/365 (2006.01)

Patent

CA 2264670

A method and apparatus for monitoring balanced biphasic current pulses used for measuring impedance in cardiac stimulators involves detecting imbalances between the pulses of opposite polarity. Such imbalances are potentially harmful to cardiac stimulator users. By converting the two different pulse phases into potentials, a determination can be made as to whether adequately balanced pulses are being generated. If an imbalance is detected, corrective action can be taken quickly enough to avoid harmful effects to the stimulator user.

Procédé et appareil permettant de surveiller des impulsions de courant biphasées équilibrées utilisées pour mesurer l'impédance dans des stimulateurs cardiaques. Ledit procédé consiste à détecter des déséquilibres entre les impulsions de polarité opposée. Ces déséquilibres sont potentiellement néfastes pour les utilisateurs de stimulateur cardiaque. En convertissant les deux phases d'impulsion différentes en potentiels, on peut déterminer si des impulsions adéquatement équilibrées sont générées. Si un déséquilibre est détecté, il est possible d'effectuer suffisamment vite une correction pour éviter les effets néfastes sur l'utilisateur de stimulateur.

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