Chemistry: molecular biology and microbiology – Apparatus – Including measuring or testing
Patent
1997-11-10
2000-02-15
Beisner, William H.
Chemistry: molecular biology and microbiology
Apparatus
Including measuring or testing
4352873, 4352887, 4353031, 435 31, C12M 134
Patent
active
060251891
ABSTRACT:
An apparatus reads a plurality of biological indicators (BIs) to determine efficacy of a plurality of sterilization cycles. Each BI exhibits fluorescence in response to biological activity indicative of bacterial growth in the BI. A plurality of BI holders are each configured to receive one of the BIs. A carriage is controllably movable relative to the plurality of BI holders to positions proximate each of the BI holders. A fluorescence sensor is mounted on the carriage and is positioned to sense fluorescence exhibited by the BI contained in the BI vessel in the selected BI holder. A controller is coupled to the fluorescence sensor to receive a fluorescence signal and to provide an output signal indicative of the fluorescence sensed.
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Bolea Phillip A.
Rosenlund Thomas T.
3M Innovative Properties Company
Beisner William H.
Griswold Gary L.
Hohenshell Jeffrey J.
Maki Eloise J.
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