Abstract: A dialysis acid precursor assembly including a dialysis acid precursor composition of dry components including anhydrous glucose, a dry acid, a magnesium chloride 4.5-hydrate (MgCl2.4.5H2O) and a potassium salt or calcium salt, and a moisture-resistant container with a water vapor transmission rate less than 0.2 g/m2/d at 38° C./90% RH, wherein the dialysis acid precursor composition is sealed within the container.

Abstract: A dialysis acid precursor assembly including: a bicarbonate containing concentrate and a dialysis acid concentrate solution including powder components mixed with water. The powder components include (1) a sodium chloride powder, (2) at least one dry acid powder, and (3) a magnesium chloride 4.5-hydrate (MgC12.4.5H2O) powder in a quantity such that a concentration of about 7.5-50 mM magnesium ions is provided in the dialysis acid concentrate solution.

Abstract: The present invention concerns a dialysis acid precursor composition for use during preparation of a dialysis acid concentrate solution and for mixing with water and a bicarbonate containing concentrate into a ready-for-use dialysis solution. The dialysis acid precursor composition consists of powder components comprising sodium chloride, at least one dry acid and at least one calcium salt, and optionally potassium salt, magnesium salt, and glucose. In an embodiment, the at least one calcium salt and the optional glucose are present as anhydrous components in the dialysis acid precursor composition.

Abstract: The present invention concerns a dialysis acid precursor composition for use during preparation of a dialysis acid concentrate solution and for mixing with water and a bicarbonate containing concentrate into a ready-for-use dialysis solution. The dialysis acid precursor composition consists of powder components comprising sodium chloride, at least one dry acid and at least one calcium salt, and optionally potassium salt, magnesium salt, and glucose. In an embodiment, the at least one calcium salt and the optional glucose are present as anhydrous components in the dialysis acid precursor composition.

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: The present invention concerns a dialysis acid precursor composition for use during preparation of a dialysis acid concentrate solution and for mixing with water and a bicarbonate containing concentrate into a ready-for-use dialysis solution. Said dialysis acid precursor composition consists of powder components comprising sodium chloride, at least one dry acid and at least one calcium salt, and optionally potassium salt, magnesium salt, and glucose. According to the invention said at least one calcium salt and said optional glucose, are present as anhydrous components in said dialysis acid precursor composition.

Abstract: A disposable for use in blood treatment including a blood treatment unit and two membrane pumps connected in parallel on one side of the blood treatment unit. The disposable is operable in a single-needle mode, in which the pumps generate a pulsatile flow of blood through the blood treatment unit, and in a double-needle mode, in which the pumps generate an essentially continuous flow of blood through the blood treatment unit. The pumps connect to a supply of treatment fluid such that alternating flows of treatment fluid causes the pumps to generate the desired flows of blood in the single-needle and double-needle modes. The treatment fluid may be used as motive fluid for displacing the blood in the membrane pumps and/or as control fluid for controlling opening and/or closing of upstream and downstream commutation valves in the membrane pumps.

Abstract: A dialysis acid precursor assembly including a dialysis acid precursor composition of dry components including anhydrous glucose, a dry acid, a magnesium chloride 4.5-hydrate (MgCl2.4.5H2O) and a potassium salt or calcium salt, and a moisture-resistant container with a water vapor transmission rate less than 0.2 g/m2/d at 38° C./90% RH, wherein the dialysis acid precursor composition is sealed within the container.

Abstract: A control unit (30) is arranged to control a dialysis fluid distribution system (12) comprising first and second volumetric pumps (P1, P2) arranged upstream and downstream of a dialyzer (13). The control unit (30) is operable in a calibration mode, to establish a bypass flow path that bypasses the dialyzer (13) and extends from the first pump (P1) to the second pump (P2) in fluid communication with a calibration chamber (26) and to operate the pumps (P1, P2) at different combinations of speeds that cause first and second changes in fluid level in the chamber (26). The first and second changes correspond to first and second known volumes in the chamber (26). The control unit (30) measures, by a level detector (28) in the chamber (26), first and second time periods for the first and second changes, and computes the stroke volumes of the pumps (P1, P2) as a function of the speeds of the pumps (P1, P2), the first and second time periods, and the first and second known volumes.

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: A dialysis acid precursor assembly including a dialysis acid precursor composition of dry components including anhydrous glucose, a dry acid, a magnesium chloride 4.5-hydrate (MgCl2.4.5H2O) and a potassium salt or calcium salt, and a moisture-resistant container with a water vapor transmission rate less than 0.2 g/m2/d at 38° C./90% RH, wherein the dialysis acid precursor composition is sealed within the container.

Abstract: A washer press apparatus for washing and dewatering a wide range of solids concentrations of pulp in liquid suspensions includes multiple distinct displacement wash zones about a drum with multiple nips.

Abstract: A package (1) is configured to store a powdery material (2) which is to be mixed with a solvent to form a medical solution, such as a dialysis solution. The package (1) comprises a filled cavity portion (6a) containing the powdery material (2), optionally separated into groups of different composition, and a tab portion (9) integrally formed with the filled cavity portion (6a) and being swept around the filled cavity portion (6a) so as to define a roll-up package. The tab portion (9) forms a protective barrier that shields the powdery material (2), e.g. by counteracting transport of moisture into and out of the package. The tab portion (9) may also stabilize the package. The roll-up package is compact, and simple to manufacture and handle.

Abstract: A dialysis acid precursor assembly including: a dry dialysis acid precursor composition including sodium chloride, a dry acid and a magnesium chloride 4.5-hydrate (MgCl2.4.5H2O), a calcium salt and at least one of a potassium salt, calcium salt and an anhydrous glucose, and a moisture-resistant container having a water vapor transmission rate less than 0.2 g/m2/d at 38° C./90% RH, wherein the dry dialysis acid precursor composition is sealed in the container.

Abstract: A control unit (30) is arranged to control a dialysis fluid distribution system (12) comprising two volumetric pumps (P1, P2) and a dialyzer (13). The control unit (30) is operable in a calibration mode, to establish a bypass flow path that bypasses the dialyzer (13) and extends between the pumps (P1, P2) and to operate the pumps (P1, P2) at first and second calibration speeds so as to balance the flow rates generated by the pumps (P1, P2), e.g. based on a measured pressure or fluid level in dialysis fluid distribution system (12). The control unit (30) determines, based on the first and second calibration speeds, a relation between the stroke volumes of the pumps (P1, P2).

Abstract: A dialysis acid precursor assembly including: a dry dialysis acid precursor composition including sodium chloride, a dry acid and a magnesium chloride 4.5-hydrate (MgCl2.4.5H2O), a calcium salt and at least one of a potassium salt, calcium salt and an anhydrous glucose, and a moisture-resistant container having a water vapor transmission rate less than 0.2 g/m2/d at 38° C./90% RH, wherein the dry dialysis acid precursor composition is sealed in the container.

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 package has a transport/storage state for storing powdery material which is to be mixed with a solvent to form a medical solution. The package includes a compartment which is at least partially defined by two opposing wall portions, and a connector. In the transport/storage state, the compartment contains the powdery material in the form of at least two distinct sets of powdery material of different compositions, where the opposing wall portions are brought into engagement with the powdery material so as to immobilize the sets of powdery material. When used for preparation of the medical solution, a fluid is selectively admitted into the package via the connector so as to expand the compartment and enable mixing of the sets of powdery material with the solvent in the compartment.

Abstract: The present invention concerns a dialysis acid precursor composition for use during preparation of a dialysis acid concentrate solution and for mixing with water, a sodium containing concentrate, and a bicarbonate containing concentrate into a ready-for-use dialysis solution. Said dialysis acid precursor composition consists of powder components comprising glucose, at least one dry acid and at least one calcium salt, and optionally potassium salt, and magnesium salt. According to the invention said glucose and said at least one calcium salt, are present as anhydrous components in said dialysis acid precursor composition.