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US 8,282,828 B2Granted
System and method for regeneration of a fluid
AssigneeTriomed AB
InventorAnders Wallenås
Life of this patent
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Abstract
A method and a system for regenerating a body fluid, such as a peritoneal dialysis fluid. The body fluid is removed into an extracorporeal circuit comprising an electrofilter for removing charged ions from the body fluid, a nanofilter for removing large molecules, such as Dextran 40, and a reverse osmosis filter for concentrating the body fluid, for producing a synthetic urine to be discarded. The removed ions and large molecules are returned to the patient together with pure water from the reverse osmosis filter through an ultrafilter.
Claims8
A system for regeneration of a body fluid, comprising:
- a line for removing a body fluid from a patient;
- a filter unit for retaining at least one component of the body fluid as a retentate fluid and for passing other components as a permeate fluid;
- a reverse osmosis filter for concentrating the permeate fluid of the filter unit, for producing a synthetic urine to be discarded as a retentate fluid and essentially water as a permeate fluid;
- a return line for returning the permeate fluid of the reverse osmosis filter and the retentate fluid of the filter unit to the body of the patient;
- and
- an electrofilter for removing charged ions from the body fluid and returning said ions to the patient.
3 more elements
Dependencies are inferred from the claim text.