| 摘要 |
A system and method for powering an implantable cardiac therapy device (ICTD) uses a hybrid battery system. In an embodiment, the hybrid battery system includes of a first type of power cell and a second type of power cell. The first power cell is configured to power low voltage, low current background operations of the ICTD. The second power cell is configured to power high voltage, high current cardiac shocking. The second power cell is further configured to be charged by the first power cell via a continuous, non-regulated charging process, thereby reducing the complexity of the charging circuitry. The system is further configured so that when cardiac shocking is in progress, only the secondary power cell powers the shocking capacitor(s) of the ICTD, and the first power cell is electrically isolated from the shocking capacitor(s). This configuration contributes to longer battery life of the hybrid battery system.
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