System for managing power to an implanted device based on operating time, current drain and battery capacity
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United States of America Patent
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Dec 16, 2003
Grant Date -
Oct 3, 2002
app pub date -
Mar 12, 2001
filing date -
Apr 26, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The method and system manage power supplied from a charging circuit to a power source in an implantable medical device utilizing measurements of current drain; measurements of elapsed time since the last full charge; calculations of operating time based on the variable of current drain and the variable of the actual capacity of the power source; sensing of voltage level above a certain value; and monitoring of the temperature of the power source during charging and discharging.
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