Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact with electrical or electromagnetic...
Patent
1993-02-22
1994-12-27
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Using direct contact with electrical or electromagnetic...
422 22, 422 28, 422 33, A61L 200
Patent
active
053763327
ABSTRACT:
A method for plasma sterilization includes forming a gas plasma from a substantially oxygen-free mixture containing argon or helium and from 1% to 5% (v/v) hydrogen in a plasma generating chamber, and exposing an article to be sterilized in a sterilizing chamber to a non-explosive mixture of the plasma gas and from 1% up to 20% (v/v) oxygen gas. Preferably, the pressure in the sterilizing chamber is from 0.1 to 10 torr and the chamber temperature is less than 6.degree. C., the mixture from which the plasma is generated contains from 4% to 5% (v/v) hydrogen, and the article in the sterilizing chamber is exposed to a mixture of plasma gas and from 1% to 10% (v/v) oxygen.
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Campbell Bryant A.
Martens Phillip A.
Abtox, Inc.
Thornton Krisanne M.
Warden Robert J.
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