Power management system
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United States of America Patent
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Jan 27, 1998
Grant Date -
N/A
app pub date -
Oct 2, 1995
filing date -
Oct 2, 1995
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A power management system automatically manages the power to operate a biomedical device, such as an infusion pump containing an internal battery. When external power is available, the management system operates the biomedical device from the external power and controls a recharger to maintain the battery at full charge. The power management system automatically calculates battery charge status and use and provides a run time display of the calculated amount of time that the battery can operate the biomedical device under current power requirements of the biomedical device. The power management system automatically updates the calculated charge status of the battery as well as the calculated capacity of the battery based on environmental factors and battery characteristics. The power management system automatically and periodically performs a deep discharge/recharge cycle to refresh the battery.
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