Apparatus and method for the microbiological testing of pressurized liquids
AssigneeMillipore Corporation
InventorJean Lemonnier
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Abstract
An apparatus for the microbiological testing of pressurized liquids is disclosed which includes a completely closed container, at the base of which a membrane filter is sealed. Fitted upstream from the membrane is a built-in reading window and included downstream from the membrane, is a flange comprising a lip seal and a female threaded part. The apparatus may be used in conjunction with a microbiological testing process by screwing to the container a filtration support, taking and filtering the sample to be analyzed, and then substituting for the support an incubation cartridge for the subsequent development, in an incubator, of the colonies collected on the membrane.
Claims12
A device for the microbiological testing of a pressurized liquid sample comprising a completely closed container formed of a transparent plastic, a membrane filter, having an upstream surface and downstream surface pre-sterilized and for single use only, being sealed at the base of said completely closed container, said completely closed container having a liquid inlet adjacent the upstream surface of the membrane filter in the form of an orifice with an axis parallel to the plane of the membrane filter and which can be closed by a removable plug, said completely closed container being fitted, adjacent said upstream surface of the membrane filter with a built-in reading window and;
- adjacent said downstream surface of the membrane filter with a flange comprising a lip seal and a female threaded part.
Dependencies are inferred from the claim text.