Fresenius Medical Care Holdings, Inc.

Seth Howard Groder

Barry Neil Fulkerson

John Arrizza

Nhan Viet Pham

John Arriza

The present specification provides a reservoir bag for containing a dialysate during a dialysis treatment. The bag has four walls and a membrane extending from a first wall to a second opposing wall which divides the bag into a first and a second sub-reservoir having changeable volumes. The maximum volume of each sub-reservoir is between 80 to 100% of the entire volume of the bag. The bag further includes at least an inlet and an outlet positioned in at least one of the walls for enabling fluid entry into and exit out of the first sub-reservoir and at least an inlet and an outlet positioned in at least one of the walls for enabling fluid entry into and exit out of the second sub-reservoir.

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Tustin, CA, United States of America

Seth Howard Groder