Assembly and method for filtration
AssigneeSiemens Aktiengesellschaft
InventorsJoachim Bangert, Katja Friedrich, Walter Gumbrecht, Karsten Hiltawsky, Peter Paulicka, Manfred Stanzel
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Abstract
An assembly and a method for filtration are disclosured, which are suitable in particular for the filtration of cells, for example tumor cells, from a sample, for example a blood sample. In the method, a pressure differential between the pressure upstream and the pressure downstream of a filter is determined; and the pressure differential between upstream and downstream of the filter is adjusted such that the pressure differential does not exceed a predetermined value.
Claims29
A method for filtration of a suspension, comprising:
- supplying the suspension to a filter;
- determining a pressure differential of pressure upstream and pressure downstream of the filter;
- and
- adjusting a pressure differential upstream compared with downstream of the filter and, as a result, pressing permeate through the filter, wherein the pressure differential does not exceed a determined value.
A device, comprising:
- a filter;
- a liquid reservoir upstream of the filter;
- a liquid reservoir downstream of the filter;
- a device configured to determine a pressure differential between pressure upstream and pressure downstream of the filter;
- and
- a device configured to adjust a pressure differential upstream compared with downstream of the filter and being configured to press of permeate through the filter, wherein the pressure differential does not exceed a determined value.
Dependencies are inferred from the claim text.