A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 1/39 (2006.01)
Patent
CA 2500423
A method and an apparatus for performing maintaining a charge in an electrical energy storing device, such as a capacitor. A set-point voltage for the electrical energy storage device is used during an initial device charging process to charge the storage device to the set-point voltage. A charge maintenance process is also performed that offsets charge loss due to leakage currents, polarization currents and the like. The charge maintenance process involves providing a charge maintenance current to the storage device until the storage device is therapeutically discharged (e.g., during cardiac defibrillation therapy delivery).
La présente invention concerne un procédé et un appareil pour conserver une charge dans un dispositif d'accumulation d'énergie électrique, tel qu'un condensateur. Une tension de consigne pour le dispositif d'accumulation d'énergie électrique est utilisée lors d'un processus de charge de dispositif initiale afin de charger le dispositif d'accumulation jusqu'à la tension de consigne. Un processus de conservation de charge est également effectué afin de compenser une perte de charge due à des courants de fuite, des courants de polarisation et phénomènes similaires. Ce processus de conservation de charge consiste à fournir un courant de conservation de charge au dispositif d'accumulation jusqu'à ce que ce dispositif d'accumulation soit thérapeutiquement déchargé (par ex. lors d'une distribution thérapeutique pour défibrillation cardiaque).
Medtronic Inc.
Smart & Biggar
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