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Abstract

Disclosed is a method for sterilizing an article with hydrogen peroxide in a reaction vessel, comprising: maintaining an inner space of the reaction vessel at a vacuum pressure lower than an equilibrium vapor pressure of hydrogen peroxide; heating the inner space of the reaction vessel to a temperature from 30 to 60° C.; injecting a hydrogen peroxide solution into the inner space of the reaction vessel; thermally vaporizing the hydrogen peroxide solution within the reaction vessel; sealing the inner space of the reaction vessel and maintaining the article in a hydrogen peroxide vapor atmosphere; and introducing external gas into the inner space of the reaction vessel to increase the pressure of the inner space to a predetermined value not more than the atmospheric pressure. The method allows the effective sterilization of an article having a narrow, long lumen.

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First Claim