초록 ▼

Apparatus and methods for providing sterile substitution solutions from a dialysis fluid used in connection with the treatment of a patient's blood in an extracorporeal circuit are disclosed. The apparatus includes pumps or valves for comparing the flow of fresh dialysis fluid prior to treatment and

Apparatus and methods for providing sterile substitution solutions from a dialysis fluid used in connection with the treatment of a patient's blood in an extracorporeal circuit are disclosed. The apparatus includes pumps or valves for comparing the flow of fresh dialysis fluid prior to treatment and after treatment of a patient's blood and a throttle which divides the fresh dialysis circuit into a positive pressure portion and a negative pressure portion, a sterile filter including a membrane disposed in the positive pressure portion of the dialysis circuit, and a valve for controlling the pressure in the positive pressure portion to pass a predetermined amount of the fresh dialysis fluid through the membrane in a sterile filter to provide a predetermined amount of the sterile substitution solution for addition to the extracorporeal circuit.

대표청구항 ▼

[ What is claimed is:] [25.]25. A method for providing a sterile substitution solution from a dialysis fluid used in connection with the treatment of a patient's blood in an extracorporeal circuit comprising providing a fresh dialysis fluid, pumping said fresh dialysis fluid through a first conduit

[ What is claimed is:] [25.]25. A method for providing a sterile substitution solution from a dialysis fluid used in connection with the treatment of a patient's blood in an extracorporeal circuit comprising providing a fresh dialysis fluid, pumping said fresh dialysis fluid through a first conduit to a dialyser by means of a pump, providing an increased pressure in said first conduit by providing a throttle in said first conduit between said pump and said dialyser, obtaining said sterile substitution solution in a sterile filter connected to said first conduit at a connection between said pump and said throttle, passing said sterile substitution solution to said extracorporeal circuit, sensing the flow of said dialysis fluid in said first conduit between said connection to said sterile filter and said dialyser, and controlling said throttle based on said sensed flow whereby the flow rate of said sterile substitution solution obtained in said sterile filter can be maintained.