METHOD AND A DEVICE FOR STERILIZATION BY PLASMA
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United States of America Patent
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Issued Date -
Jun 20, 2019
app pub date -
Jan 25, 2018
filing date -
Dec 20, 2017
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Abstract
A method of sterilizing an object in a sterilization chamber comprises: evacuating the sterilization chamber at a pressure value; injecting a gaseous phase into at least one plasma generator via an ionization duct, the injected gaseous phase comprising dinitrogen with a volume content of dioxygen, a first ratio of the flow rate for injecting the gaseous phase in each plasma generator over the volume of the sterilization chamber being maintained at a value that is greater than or equal to 0.02 min−1, and a second ratio of the flow rate for injecting the gaseous phase into each plasma generator over the inside sectional area of the ionization duct being maintained at a value that is less than or equal to 102 m/min; the at least one plasma generator generating a plasma from the gaseous phase; and injecting a post-discharge stream resulting from the plasma into the previously-evacuated sterilization chamber.
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