Technique for extracorporeal treatment of blood

A - Human Necessities – 61 – M

Patent

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Details

A61M 1/34 (2006.01) A61M 1/16 (2006.01) A61M 1/36 (2006.01) C07K 14/47 (2006.01) C07K 16/40 (2006.01) C12N 9/64 (2006.01) G01N 33/573 (2006.01) G01N 33/68 (2006.01)

Patent

CA 2115414

The apparatus automatically performs and monitors the extracorporeal treatment of the blood of a patient by any selected one of a plurality of predetermined treatments. Each of the treatments involves the flow of blood from the patient into a primary chamber (44) of a filtration unit (40), past a semipermeable membrane (42) located in the filtration unit (40) which separates the primary chamber (44) from a secondary chamber (46) of the filtration unit (40), out the filtration unit and back to the patient. A replacement fluid is selectively and controllably added to the blood, as required for the selected treatment. A secondary fluid is controllably and selectively introduced into the secondary chamber (46) of the filtration unit (40) for controllably collecting material passing across the semipermeable membrane (42) from the blood or for supplying material to pass across the semipermeable membrane (42) into the blood as required for the selected treatment. Materials are removed from the secondary chamber (46) and collected in accordance with the selected treatment. Upon selection of one of the plurality of extracorporeal blood treatments available, the rates of blood flow, fluid flow and fluid collection during the extracorporeal treatment are automatically determined, established and monitored in accordance with the selected treatment.

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