Chemistry: molecular biology and microbiology – Apparatus – Bioreactor
Patent
1993-02-09
1994-08-23
Warden, Robert J.
Chemistry: molecular biology and microbiology
Apparatus
Bioreactor
435296, 435298, 435311, 422113, 220203, 220208, 220240, 220316, 220367, C12M 134
Patent
active
053407415
ABSTRACT:
A sterility testing device includes a container made up of upper and lower plastic parts between which is welded a hydrophilic microporous membrane filter. The device also includes a removable plastic lid with vent holes. The lid is adapted to be secured to the container in two different positions such that, during in-situ incubation of a culture medium after the filtration of the sample and rinsing, the lid is deformed to allow a passageway for excess pressurized air to be removed from the interior of the container while at the same time preventing ambient air from entering the container. The device thus operates with a single membrane filter and is more economical to manufacture than prior art devices.
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Cook Paul J.
Jones Huw R.
Karnakis Andrew T.
Millipore Corporation
Thornton Krisanne M.
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