Dialysis system with efficient battery back-up
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United States of America Patent
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Jan 29, 2013
Grant Date -
Aug 21, 2008
app pub date -
Feb 15, 2007
filing date -
Feb 15, 2007
priority date (Note) -
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Abstract
A medical fluid machine includes: an enclosure; at least one medical fluid delivery component located inside the enclosure, the component capable of being powered by an external power source or a back-up battery; a transistor in electrical communication with the battery; and a regulator configured to: (i) receive as feedback a supply voltage; and (ii) vary a gate voltage at the transistor to maintain the supply voltage at least substantially at a desired level.
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