Abstract: A dialysis machine comprising a fluid circuit for providing a dialysis fluid to a dialyser is disclosed. The fluid circuit comprises a tube with a first valve for providing a disinfectant fluid for disinfecting at least a part of the fluid circuit at disinfection of the dialysis machine. The tube with the first valve is arranged to provide the disinfectant fluid upstream the dialyser and at a position in the fluid circuit where pressure is, during treatment, such that a pressure gradient between ports of the first valve is provided, the ports comprising at least a disinfectant fluid port and a fluid circuit port, such that the disinfectant fluid port of the first valve is enabled to be safely connected to a source of disinfectant also during treatment. A method of controlling such a dialysis machine and a computer program for controlling are also disclosed.

Abstract: An apparatus (1) is described for extracorporeal blood treatment, comprising a treatment unit (2), an extracorporeal blood circuit (8) and a fluid evacuation line (10). A venous chamber (12) is placed in a blood return line (7) and is arranged in use to contain a gas in an upper portion (120) and blood at a predetermined level in a lower portion. The apparatus (1) comprises a control unit (21) connected to a first pressure sensor (14) and configured to: receive from the first pressure sensor (14) a first signal (P1(t)) relating to a time variable pressure (P(t)) of the blood flow; calculate a phase shift (?) between the first signal (P1(t)) and a reference signal (P2(t)) correlated to the time variable pressure (P(t)) detected at a location distinct from the upper portion (120) of the chamber (12); monitor the volume (V) of gas in the upper portion (120) of the chamber (12) through the phase shift (?).

Abstract: A dialysis monitor with a treatment fluid path configured to provide treatment fluid to a dialyzer when dialysis treatment is performed by the dialysis monitor is provided. A battery unit is connected to a controller and at least a portion of the functional elements of the dialysis monitor in order to provide back-up power should the supply of external power be discontinued. Energy of the battery unit is used to provide energy to the heater in preparation for and/or at least partly during thermal disinfection of the treatment fluid path or when starting up the preparation of treatment fluid thereby shortening the time required for the thermal disinfection and the starting up of the preparation of treatment fluid, respectively.

Abstract: Dialysis monitors capable of storing and using thermal energy and methods related thereto are disclosed. Dialysis monitors capable of storing and using disinfection and/or cleaning fluids which was used at an earlier disinfection and/or cleaning event and methods related thereto are also disclosed. Thermally stored energy may, for example, be used for quick thermal disinfection of the fluid path, quick start-up of the preparation of treatment fluid, and as back-up power for continuous preparation of treatment fluid should externally provided power be interrupted.

Abstract: The present invention concerns a system and a method for dosing of at least two concentrates into water for on-line preparation of a medical fluid. The system comprises a main line (1) for feeding of water, a first line (2) with a first pump (3) for feeding of a first concentrate into the main line at a first mixing point (4), a second line (5) with a second pump (6) for feeding of a second concentrate into the main line at a second mixing point (7). A main concentration sensor (12) measures the concentration in the main line (1) downstream both the first and the second mixing points. Initially, while not feeding any of the second concentrate, the control of the dosing of the first concentrate is under feedback control from the main concentration sensor (12) to the first pump (3).

Abstract: A cassette is provided for installation in a dialysis monitor to pump a treatment solution through a dialyzer. The cassette is a unitary component with a hydraulic manifold (53) and a pneumatic manifold (54) integrated into a body (52). The body (52) has connectors for connecting the hydraulic manifold (53) to the dialyzer and the pneumatic manifold (54) to a pneumatic pressure source. A set of solution pumps is integrated in the cassette, and each solution pump includes a pump cavity inside the body. The solution pumps are operable to displace the treatment solution through the hydraulic manifold (53) to and/or from the dialyzer by action of a reciprocating gas-liquid interface in the pump cavity (30) of the respective solution pump. The gas-liquid interface is formed directly between a gaseous substance and the treatment solution.

Abstract: A device and a method for a peritoneal dialysis treatment having several cycles include a cycler controlled by a processor. The cycler fills the abdominal cavity with dialysis fluid, and drains the abdominal cavity. A sensor senses a variable related to the draining of the dialysis fluid. The draining is interrupted when the variable reaches a breakpoint at which the variable is radically changed, thereby leaving the residual volume of fluid.

Abstract: The invention concerns a device and a method for a peritoneal dialysis treatment in several cycles. A cycler (1) controlled by a processor (31) fills the abdominal cavity with dialysis fluid, and drains the abdominal cavity. A sensor (37) senses a variable related to the draining of the dialysis fluid. The draining is interrupted when the variable reaches a breakpoint at which the variable is radically changed, thereby leaving the residual volume.

Abstract: The invention relates to remote controlled blood cleaning of a patient (P). A dialysis unit (110) treats the patient's (P) blood in accordance with a prescribed therapy. The dialysis unit (110) has a bi-directional wireless interface (110W-120W) towards a gateway unit (120), which is further connected (125) to a remote host (140) via at least one interconnecting network (130). Thus, therapy related parameters (Dbp, Dr, dh, Dw) can be transmitted from the dialysis unit (110) to the remote host (140). It is also rendered possible for the remote host (140) to transmit control data (Dctr1) to the dialysis unit (110), the control data (Dctr1) influencing the prescribed therapy being, or to be, executed by the dialysis unit (1 10).

Abstract: Apparatus for removing gases from a container used to prepare concentrates of a powder in water are disclosed including a supply conduit for supplying water to the container, a removal conduit for removing the concentrate from the container, a pump including a negative pressure side, an evacuation conduit for connecting the negative pressure side of the pump with the container, an actuatable valve disposed in the evacuation conduit whereby upon actuation the actuatable valve connects the container with the negative pressure side of the pump, an indicator for indicating when the container includes a predetermined amount of the gases, and a control mechanism for actuating the valve in response to the indicator to eliminate the gases from the container.

Abstract: Apparatus for disinfecting dialysis devices are disclosed including a first circulation conduit for circulating a first fluid through at least a portion of the supply conduit to a dialyzer in order to disinfect that portion of the supply conduit and a second circulation conduit for circulating a second fluid through at least a portion of the removal conduit from the dialyzer for disinfecting that portion of the removal conduit.

Abstract: Methods for measuring the flow differential through a dialysis machine are disclosed in which the dialysis machine includes a heat exchanger having a primary side and a secondary side for exchanging heat therebetween. The method includes measuring the temperature differences across the primary and secondary sides of the heat exchanger and calculating the flow differential based upon these measured temperature differences. Apparatus for measuring such a flow differential is also disclosed, as are methods for calibrating that apparatus.

Abstract: Methods for measuring the flow differential through a dialysis machine are disclosed in which the dialysis machine includes a heat exchanger having a primary side and a secondary side for exchanging heat therebetween. The method includes measuring the temperature differences across the primary and secondary sides of the heat exchanger and calculating the flow differential based upon these measured temperature differences. Apparatus for measuring such a flow differential is also disclosed, as are methods for calibrating that apparatus.