Dosimeter for sterilization with ethylene oxide

A - Human Necessities – 61 – L

Patent

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A61L 2/28 (2006.01)

Patent

CA 2378555

There is provided a device for monitoring sterilization with ethylene oxide comprising at least one layer of polymer, having incorporated therein an indicator like bromothymol blue, bromocresol purple, capable of undergoing at least one color change, an activator for the indicator consisting of an halide like sodium bromide, tetrabutylammonium bromide. Wherein said activator is contacted with ethylene oxide, it undergoes a reaction with it to produce a product which causes the indicator to undergo a color change. There is further provided a process for making this device and for using it.

L'invention concerne un dispositif de surveillance de la stérilisation avec de l'oxyde d'éthylène comprenant au moins une couche de polymère, dans laquelle un indicateur (tel que le bleu de bromothymol, le pourpre de bromocrésol) capable de provoquer au moins un changement de couleur a été incorporé, et un activateur pour l'indicateur composé d'un haloïde comme le bromure de sodium et le bromure de tétrabutylammonium. Quand l'activateur est mis en contact avec l'oxyde d'éthylène, il se produit une réaction signalée par le changement de couleur de l'indicateur. L'invention concerne également un procédé de fabrication et d'utilisation de ce dispositif.

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