Method for decontaminating or sterilizing "in situ" a vacuum sealed container and device for implementing such method
AssigneeFoundation Nationale de Transfusion Sanguine
InventorsRoland Schmitthaeusler, Annie Bardat
Life of this patent
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Abstract
A method is described for decontaminating or sterilizing a vacuum sealed container, particularly after a lyophilization cycle, wherein one or a plurality of containers containing microorganisms or dangerous products by introducing an aqueous gas or liquid into the container after dehydration. Also described is a device for performing the method.
Claims13
A process for decontaminating or sterilizing at least one vacuum sealed container containing (a) biological material having the ability to replicate or (b) containing a pyrogenic substance, said process comprising the steps of dehydrating under vacuum said biological material having the ability to replicate or said pyrogenic substance, and introducing, after dehydration, while maintaining a vacuum (c) an aqueous solution selected from the group consisting of aqueous solutions of peracetic acid, hydrogen peroxide, a mixture of peracetic acid and hydrogen peroxide, and a mixture of alcohol and hydrogen peroxide, or (d) an aqueous gas capable of vaporizing under vacuum selected from the group consisting of (i) a gas which is a mixture of oxygen and humidified ozone and (ii) a gas which is a mixture of carbon dioxide, oxygen and humidified ozone into the container such that the (c) aqueous solution or (d) aqueous gas is kept in contact with the (a) dehydrated biological material or (b) dehydrated pyrogenic substance, such that condensation of the aqueous solution or aqueous gas occurs on the material.
A process for decontaminating or sterilizing at least one vacuum sealed container containing (a) biological material having the ability to replicate or (b) containing a pyrogenic substance, said process comprising the steps of dehydrating under vacuum said biological material having the ability to replicate or said pyrogenic substance, and introducing, after dehydration, under vacuum (c) an aqueous solution selected from the group consisting of aqueous solutions of peracetic acid, hydrogen peroxide, alcohol, and mixtures thereof, or (d) an aqueous gas capable of vaporizing under vacuum selected from the group consisting of (i) a gas which is a mixture of oxygen and humidified ozone and (ii) a gas which is a mixture of carbon dioxide, oxygen and humidified ozone into the container such that the (c) aqueous solution or (d) aqueous gas is kept in contact with the (a) dehydrated biological material or (b) dehydrated pyrogenic substance, such that condensation of the aqueous solution or aqueous gas occurs on the material.
Dependencies are inferred from the claim text.