Chemistry: molecular biology and microbiology – Apparatus – Bioreactor
Patent
1988-12-22
1990-04-03
Jones, Larry
Chemistry: molecular biology and microbiology
Apparatus
Bioreactor
435 31, 435299, 435311, 206305, 206569, C12Q 122, C12M 116
Patent
active
049140345
ABSTRACT:
Disposable test packs for monitoring the efficacy of steam or ethylene oxide sterilization cycles includes a fiber board housing for a biological indicator. The housing includes two end sections and a midsection. Each end section includes an outer tube and a longer inner tube. The open end of the outer tubes abut the opposing open ends of the midsection to define a seam or gap. The inner tube extends past the seam and telescopes into the midsection. The seam and the close tolerance between the inner tube and the midsection provide a tortuous path for the entry of sterilant into the interior of the housing. The tortuous path has a moisture absorbent surface and is dimensioned to promote intimate contact between the sterilant and the absorbent surface. A second path of entry is provided in the embodiment adapted for use in monitoring ethylene oxide sterilization processes only. A midsection can be made of a transparent, sterilant impermeable material to permit observation of the interior of the housing.
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Dyke Denis G.
Welsh Jon D.
American Sterilizer Company
Jones Larry
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