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Title:
過酸化水素滅菌方法
Document Type and Number:
Japanese Patent JP5785210
Kind Code:
B2
Abstract:
A method of sterilizing an article by sequentially exposing the article to hydrogen peroxide and ozone is disclosed. The article is exposed under vacuum first to an evaporated aqueous solution of hydrogen peroxide and subsequently to an ozone containing gas. The exposure is carried out without reducing the water vapor content of the sterilization atmosphere, the water vapor content being derived from the aqueous solvent of the hydrogen peroxide solution and from the decomposition of the hydrogen peroxide into water and oxygen. The complete sterilization process is carried out while the chamber remains sealed and without removal of any component of the sterilization atmosphere. For this purpose, the chamber is initially evacuated to a first vacuum pressure sufficient to cause evaporation of the aqueous hydrogen peroxide at the temperature of the chamber atmosphere. The chamber is then sealed for the remainder of the sterilization process and during all sterilant injection cycles. Keeping the chamber sealed and maintaining the hydrogen peroxide and its decomposition products in the chamber for the subsequent ozone sterilization step results in a synergistic increase in the sterilization efficiency and allows for the use of much lower sterilant amounts and sterilization cycle times than would be expected from using hydrogen peroxide and ozone in combination.

Inventors:
Bruno Tranbray
Jean-Martin Barriere
Application Number:
JP2013083229A
Publication Date:
September 24, 2015
Filing Date:
April 11, 2013
Export Citation:
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Assignee:
TS Ausley Inc.
International Classes:
A61L2/20; A61L2/24; B01J4/02
Domestic Patent References:
JP2001289687A
JP2006305379A
JP8505787A
JP6510932A
JP2004160168A
JP2006204889A
JP8285658A
JP2002263174A
JP2010532198A
JP2006110349A
JP2009501631A
JP2009535215A
JP8504612A
JP5504285A
JP2004066236A
Foreign References:
US20030066346
US4838887
US3880011
Attorney, Agent or Firm:
Atsushi Aoki
Tetsuro Shimada
Shinji Mitsuhashi
Yoryo Mihashi
Yuichi Morimoto
Takuya Shinoda



 
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