Plasma powder sterilization apparatus and methods
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United States of America Patent
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Jul 4, 2017
Grant Date -
Feb 12, 2015
app pub date -
Oct 28, 2014
filing date -
Dec 12, 2011
priority date (Note) -
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Abstract
Systems and methods for plasma sterilization are described. The sterilization method includes placing a substance to be sterilized in a rotating chamber (e.g., drum) and exposing the substance to a radio frequency (RF) plasma. The mixing of the substance and plasma is further promoted by generating a magnetic field that produces a force on the substance in a direction opposite to the rotational direction of the chamber. In other aspects, the chamber may have a gas permeable wall. In addition, the substance may be exposed to acoustic shock waves produced by a modulating RF generator.
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