Chemistry: molecular biology and microbiology – Apparatus – Including measuring or testing
Patent
1997-05-30
1999-01-26
Redding, David A.
Chemistry: molecular biology and microbiology
Apparatus
Including measuring or testing
4352887, 435808, 356246, 356317, 436172, 422 8208, 2504581, 2504612, C12M 300
Patent
active
058637907
ABSTRACT:
A system is used for determining efficacy of a sterilization cycle. A biological sterility indicator exhibits fluorescence in response to biological activity which is indicative of bacterial growth in the biological sterility indicator. The biological sterility indicator is exposed to the sterilization cycle and is placed in a fluorescence reading apparatus. The fluorescence from the biological sterility indicator is read to obtain a first fluorescence reading. The fluorescence from the biological sterility indicator is re-read to obtain a second fluorescence reading. The efficacy of the sterilization cycle is determined based on the first and second fluorescence readings.
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"Attest Biological Monitoring System", 3M Health Care, brochure, admitted prior art.
Griswold Gary L.
Hohenshell Jeffrey J.
Minnesota Mining and Manfacturing Company
Redding David A.
Sprague Robert W.
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