Sterilization system and method

Details Sterilization system and method Sterilization system and method

1988-01-26

1990-06-26

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Using disinfecting or sterilizing substance

422 1, 422 33, 422294, A61L 220

Patent

active

049370464

ABSTRACT:
Apparatus and method for sterilizing articles includes a sealed first enclosure made at least partially of a gas-permeable plastic film and a sealed container releasably containing a gaseous sterilant under pressure, the container being enclosed within the first enclosure. An openable second enclosure made at least partially of a gas-permeable plastic film is also provided and the first enclosure and the articles to be sterilized are disposed in the second enclosure. The sterilant which is characterized by toxicity and flammability when released from its container diffuses from the first enclosure into the second enclosure at a rate capable of establishing sterilization conditions in the second enclosure during a sterilization cycle to thereby effect sterilization of the articles in the second enclosure. A third enclosure is also provided in which the second enclosure containing the articles to be sterilized is disposed. A flushing system introduces air into the second enclosure to flush out the sterilizing gas therein into the third enclosure during a flushing cycle following completion of the sterilization cycle, and an exhaust system exhausts the sterilant gas and air from the third enclosure during the flushing cycle and conducts the exhausted sterilant gas and air to a remote area, whereby the flushing system and the exhaust system minimize the extent of residue sterilant gas in the work area surrounding the apparatus.

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patent: 4461097 (1984-07-01), Thornton

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