US 12,090,258 B2Granted

Dialysis machine and method of operating a balancing chamber system of a dialysis machine

AssigneeFresenius Medicas Care Deutschland GmbH

InventorTobias Irrgang

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Abstract

The present invention relates to a dialysis machine having a dialyzer and having a first balancing chamber and having a second balancing chamber, wherein the first inflows of the first balancing chamber halves are in fluid communication with a source of fresh dialyzate and the first outflows of the first balancing chamber halves are in fluid communication with a dialyzer inflow, and wherein the second inflows of the second balancing chamber halves are in fluid communication with a dialyzer outflow and the second outflows of the second balancing chamber halves are in fluid communication with a drain, wherein a third balancing chamber is provided that has two balancing chamber halves that are separated from one another by a movable wall, wherein each of the balancing chamber halves has a respective inflow and a respective outflow that are each provided with valves that are configured to close or open the respective inflow or outflow, wherein the two inflows are in fluid communication with a source of fresh dialyzate, and wherein the two outflows are in fluid communication with the dialyzer inflow.

Claims14

Dependent claims

A dialysis machine having a dialyzer (D) and having a first balancing chamber (A) and having a second balancing chamber (B) of which each has at least two first (100, 102) and second balancing chamber halves (200, 202) separated from one another by a movable wall (W), wherein each first balancing chamber half (100, 102) is provided with a respective first inflow (Z1, Z3) and with a respective first outflow (A1, A3), wherein each second balancing chamber half (200, 202) is provided with a respective second inflow (Z2, Z4) and with a respective second outflow (A2, A4), wherein the inflows and outflows (A1-A4, Z1-Z4) are each provided with valves (1.1-1.4;

2.1-2.4) that are configured to close or to open the respective inflow (Z1-Z4) or outflow (A1-A4), wherein the first inflows (Z1;
Z3) of the first balancing chamber halves (100;
102) are in fluid communication with a source of fresh dialyzate and the first outflows (A1;
A3) of the first balancing chamber halves (100;
102) are in fluid communication with a dialyzer inflow (DZ), and wherein the second inflows (Z2;
Z4) of the second balancing chamber halves (200;
202) are in fluid communication with a dialyzer outflow (DA) and the second outflows (A2;
A4) of the second balancing chamber halves (200;
202) are in fluid communication with a drain (1), characterized in that a third balancing chamber (C) is provided that has two balancing chamber halves (104;
204) that are separated from one another by a movable wall (W), with each of the balancing chamber halves (104;
204) having a respective inflow (Z5;
Z6) and a respective outflow (A5;
A6) that are each provided with valves (V1-V4) that are configured to close or to open the respective inflow (Z5;
Z6) or outflow (A5;
A6), with the two inflows (Z5;
Z6) being in fluid communication with a source of fresh dialyzate and with the two outflows (A5;
A6) being in fluid communication with the dialyzer inflow (DZ).

14 more elements

A method of operating a balancing chamber system of a dialysis machine having a first balancing chamber (A) and having a second balancing chamber (B) of which each has at least two first (100, 102) and second balancing chamber halves (200, 202) separated from one another by a movable wall (W), wherein each first balancing chamber half (100, 102) is provided with a respective first inflow (Z1, Z3) and with a respective first outflow (A1, A3), wherein each second balancing chamber half (200, 202) is provided with a respective second inflow (Z2, Z4) and with a respective second outflow (A2, A4), wherein the inflows and outflows (A1-A4, Z1-Z4) are each provided with valves (1.1-1.4;

2.1-2.4) that are configured to close or to open the respective inflow (Z1-Z4) or outflow (A1-A4), wherein the first inflows (Z1;
Z3) of the first balancing chamber halves (100;
102) are in fluid communication with a source of fresh dialyzate and the first outflows (A1;
A3) of the first balancing chamber halves (100;
102) are in fluid communication with a dialyzer inflow (DZ), and wherein the second inflows (Z2;
Z4) of the second balancing chamber halves (200;
202) are in fluid communication with a dialyzer outflow (DA) and the second outflows (A2;
A4) of the second balancing chamber halves (200, 202) are in fluid communication with a drain (1), characterized in that a third balancing chamber (C) is provided that has two balancing chamber halves (104;
204) that are separated from one another by a movable wall (W), with each of the balancing chamber halves (104;
204) having a respective inflow (Z5;
Z6) and a respective outflow (A5;
A6) that are each provided with valves (V1-V4), with the two inflows (Z5;
Z6) being in fluid communication with a source of fresh dialyzate and with the two outflows (A5;
A6) being in fluid communication with the dialyzer inflow (DZ), with the valves (V1-V4) being operated such that fresh dialyzate is conveyed from the third balancing chamber (C) to the dialyzer inflow (DZ).

11 more elements

Dependencies are inferred from the claim text.