Adolf Kühner Ag

Reseachem Gmbh

Berner Fachhochschule

Manfred Schär

Stefan Berger

Tibor Anderlei

Philipp Haslebacher

Simon Paul Zumbrunnen

Philip Marmet

Simon Zumbrunnen

Andreas Richter

Fritz Bircher

Christine Schnetz

Andreas MÄCHLER

Reinhold Krause

Urs Von Arx

Pascal Bernet

A method, and also a gas supply system without a separate humidifying apparatus, for supplying gas to a plurality of bioreactors, divides a constant gas stream with high distribution accuracy into a plurality of gas substreams having a mandated volume flow, which can be kept constant at the mandated level even when during gas supply there is fluctuation in the opposing pressure in the gas line to the respective bioreactor, and decouples a gas distribution from the opposing pressure by hydrostatic pressure compensation, with the gas distribution at the same time producing an obligatory humidification of the gas stream.

Method for gassing bioreactors and gassing system

Proposed is a flow sensor (), in particular for single use, having at least three measurement chambers (), which are arranged one behind the other and are interconnected in each case by a flow resistance. At least two of the flow resistances have a different coefficient of pressure loss. A pressure measuring means () is provided for each measurement chamber, which pressure measuring means () is suitable for measuring the pressure in the measurement chamber. An electromagnetically actuatable valve arrangement () can be connected downstream of the flow sensor.

Flow sensor

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Burgdorf, Switzerland

Manfred Schär