Method for sterilizing objects with ozone

A - Human Necessities – 61 – L

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A61L 2/20 (2006.01) A61L 2/24 (2006.01)

Patent

CA 2669476

A method for sterilizing objects with ozone comprises the steps of: positioning the objects in a sterilization chamber (10); effecting an ozone-containing gas atmosphere in the sterilization chamber (10); making the ozone-containing gas circulate via a circulation pipe (20) outside the sterilization room (10), wherein the circulation pipe (20) is provided with an ozone generator (60) and a water mouthpiece (73); establishing an air humidity in a range of approximately 80%; establishing an ozone concentration in the gas higher than 0.2 mgr/1; defining in advance an ozone performance equivalent (OPEQ); measuring the ozone concentration (OC) during the sterilization process on certain measurement moments; calculating the time integral of the measured ozone concentration; wherein the sterilization process is continued until the time integral of the measured ozone concentration is minimally equal to the predetermined ozone performance equivalent.

Procédé de stérilisation d'objets à l'ozone comprenant les opérations suivantes; présentation des objets dans une chambre de stérilisation (10); création d'une atmosphère gazeuse contenant de l'ozone dans la chambre de stérilisation (10); mise en circulation du gaz contenant de l'ozone via un conduit de circulation (20) en dehors de la chambre de stérilisation (10), ledit conduit (20) comportant un générateur d'ozone (60) et d'un embout à eau (73); établissement d'un taux d'humidité d'environ 80%; établissement d'une concentration d'ozone supérieure à 0,3 mg/l; définition par avance d'une performance équivalente ozone pour la mesure de la concentration d'ozone pendant le processus de stérilisation à certains moments du processus de mesure; calcul de l'intégrale temps de la concentration d'ozone mesurée. Le processus de stérilisation se poursuit jusqu'à ce que l'intégrale temps de la concentration d'ozone mesurée soit égale au minimum à l'équivalent performance ozone.

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