Sartorius Stedim Biotech Gmbh

Roland Leetsch

Karl Pflanz

Sebastian Pruehl

Andreas Pickl

Adam Gilbert

Martin Purshouse

Sebastian PRÜHL

A filtering system () includes a filtering apparatus having a filter unit for receiving liquid to be filtered, a receptacle for receiving filtered liquid, and an adapter () for coupling the filter unit to the receptacle, and also includes a base () having a cradle () for receiving the filtering apparatus and a base vacuum delivery port (). The adapter includes an adapter vacuum receiving port () coupled to the vacuum delivery port for driving the liquid through the filter and—as filtered liquid—into the receptacle. The cradle and the adapter have an interlocking mechanism () that locks the filtering apparatus to the cradle in a locking position in which the vacuum receiving port is sealingly coupled to the base vacuum delivery port. The base vacuum delivery port has a vacuum valve () constituted as a normally-closed valve automatically forced open when the filtering apparatus locks to the cradle.

Liquid filtering method and system

A filtering system () includes a filtering apparatus having a filter unit for receiving liquid to be filtered, a receptacle for receiving filtered liquid, and an adapter () for coupling the filter unit to the receptacle, and also includes a base () having a cradle () for receiving the filtering apparatus and a base vacuum delivery port (). The adapter includes an adapter vacuum receiving port () coupled to the vacuum delivery port for driving the liquid through the filter and&#x2014;as filtered liquid&#x2014;into the receptacle. The cradle and the adapter have an interlocking mechanism () that locks the filtering apparatus to the cradle in a locking position in which the vacuum receiving port is sealingly coupled to the base vacuum delivery port. The base vacuum delivery port has a vacuum valve () constituted as a normally-closed valve automatically forced open when the filtering apparatus locks to the cradle.

Liquid filtering system

A filter module () has a housing () which is subdivided by a membrane filter () into an inlet chamber (), which is connected to an inlet connecting piece () arranged rigidly on the housing (), and an outlet chamber (), which has a filtrate outlet (). The inlet connecting piece has two connectors, specifically a first connector () and a second connector (), which connect selectively and fluidically to the inlet chamber with a 3-way valve () integrated into the inlet connecting piece. The valve has a first entry, which is connected to the first connector, a second entry, which is connected to the second connector, and an exit, which is connected to the inlet chamber. The first connector is configured as an adapter for outwardly sealed coupling of a culture medium bottle (), which coupling permits a gravity-driven exchange of liquid with the first entry of the valve.

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Bovenden, Germany

Roland Leetsch