A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 1/00 (2006.01) A61J 1/20 (2006.01) A61M 5/148 (2006.01)
Patent
CA 2267644
The invention refers to a device for the non-pulsating delivery of liquids. For this purpose, a flexible (10) bag containing a sterile liquid is introduced in a closed container (11), which is then hermetically sealed. By bleeding the container (11) thoroughly and introducing a liquid, preferably degassed water, the sterile liquid is pressed out of the bag. The bag (10) is connected through a previously assembled and autoclaved connecting unit (1, 4, 7) (for instance with a tapping system) to a sterile processing chamber (16). The medium, which is pressed with an non-sterile feeding device (21) into the container (11), flows as a sterile liquid from the bag (10) into the processing chamber (16). This makes it possible to run constant) non-pulsating flows or specific dosing curves. The system can be further developed to deliver liquid from the container in the opposite direction. The resulting underpressure exerted on the bag makes the medium flow from the sterile processing chamber into the bag, where it can be easily separated from the system.
Bereskin & Parr
Nisco Engineering Ag
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