Judy K. Hendricks - Albuquerque NM
Shaundrea L. Rechsteiner - Lambertville MI
Joel R. Gorski - Marrietta GA
Adam Lee - Toledo OH
Roger Fiske - Findlay OH
3M Innovative Properties Company - St. Paul MN
435 31, 435 14, 435 26, 435 29, 4352874, 4352871, 4352831, 435807, 435810, 422 50
This invention relates to a container and method for detecting a specific environmental parameter or combination of parameters, or for determining the effectiveness of a sterilization procedure. The invention relates to test indicators containing controlled volumes of compressed, gas-permeable materials, and modified caps comprising one or more apertures, sterilant permeable inserts, protruding members, or a combination thereof, and to methods for using test indicators for determining the efficacy of different types of sterilization processes. If proper sterilization conditions are not met, the interactive enzyme system remains active, and a color product forms upon the addition of the remaining components of the enzyme system. If the proper sterilization conditions are met, the sterilant destroys the interactive enzymes and no color product is formed. Inactivation of the enzyme system parallels the inactivation of bacterial spores subjected to the sterilization process.