Pump for a bioprocessing system
AssigneeCytiva Sweden AB
InventorsAndreas Lundin, Christopher Ford, Klaus Gebauer, Per Stromberg
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Abstract
The present disclosure related to a pump (100, 1100, 2100) for providing substantially continuous liquid flow in a bioprocessing system (200), the pump (100, 1100, 2100) comprising: a pressurizable outlet chamber (122, 1122) in fluidic communication with an outlet (126, 1126, 2126) of the pump (100, 1100, 2100); and a pressurizable feed chamber (120, 1120) connected in series with the outlet chamber (122, 1122), wherein the feed chamber (120, 1120) is configured to fill the outlet chamber (122, 1122) during discharge of liquid from the outlet chamber (122, 1122).
Claims13
A bioprocessing system comprising:
- a pump comprising:
- a pressurisable outlet chamber in fluidic communication with an outlet of the pump, and
- a pressurisable feed chamber connected in series with the outlet chamber, wherein the feed chamber is configured to fill the outlet chamber during discharge of liquid from the outlet chamber, and
- wherein each of the feed chamber and the outlet chamber is pressurisable by deformation of a respective flexible diaphragm of the chamber, wherein each respective flexible diaphragm is deformable by application of a control fluid to the flexible diaphragm;
- and
- a control system for applying pressure to the chambers of the pump, wherein the control system is configured to:
- apply pressure to the outlet chamber of the pump to discharge liquid from the outlet chamber, and
- during application of the pressure to the outlet chamber:
- apply a first pressure to the feed chamber of the pump to fill the feed chamber,
- wherein the first pressure is a negative gauge pressure, and
- apply a second pressure to the feed chamber to discharge liquid from the feed chamber to the outlet chamber, wherein the second pressure is higher than the first pressure.
Dependencies are inferred from the claim text.