Volumetric fluid withdrawal system

Details Volumetric fluid withdrawal system Volumetric fluid withdrawal system

A - Human Necessities

61

M

128/80

A61M 5/00 (2006.01) A61M 1/34 (2006.01)

Patent

CA 1258020

ABSTRACT A system for withdrawing a predetermined volume of fluid from a patient comprises a filter assembly which is connected in line for fluid communication between an artery and a vein of the patient. A pump having a fluid chamber is connected in fluid communication with a filtrate port of the filter. Operation of the pump causes the withdrawal of fluid from the filter and into the pump chamber at a preselected volumetric rate. Periodically, the pump is cycled to expel the withdrawn fluid from the pump chamber. The system further comprises a fluid collection device for collecting the expelled fluids and may include means for replenishing fluids to the patient.

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