Technique for disinfecting extracorporeal fluid treatment system

Details Technique for disinfecting extracorporeal fluid treatment system Technique for disinfecting extracorporeal fluid treatment system

1996-12-05

1998-03-31

Kim, John

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210194, 2101951, 2101952, 21032169, 422 1, A61L 200, A61M 114, B01D 6130

Patent

active

057334579

ABSTRACT:
An extracorporeal fluid treatment apparatus which is selectively operable in a disinfecting mode or a treatment mode includes an inlet line, a pre-treatment portion, an input pump, a heater, an input shunt, a filtration device, a post-treatment portion, a drain line and an output shunt. The apparatus also includes a combination of valves which are selectively positionable in disinfecting mode to create an input fluid circuit which includes the pre-treatment portion and the input shunt, and which is in fluid isolation from the post-treatment portion and from the filtration device. In disinfecting mode, the valves are also selectively positionable to create an output fluid circuit which includes the post-treatment portion and the output shunt, and which is in fluid isolation from the pre-treatment portion and from the filtration device. In disinfecting mode, a heated input fluid is circulated in the input fluid circuit and a heated output fluid is circulated in the output fluid circuit until disinfection of each of the input and output fluid circuits is achieved. The apparatus optionally includes a heat exchanger through which heat is transferred while in disinfecting mode from the input fluid in the pre-treatment portion to the output fluid in the post-treatment portion.

REFERENCES:
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patent: 4728496 (1988-03-01), Petersen et al.
patent: 4774415 (1988-09-01), Biegel et al.
patent: 5032265 (1991-07-01), Jha et al.

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