Abstract:
The present disclosure relates to a filter module for a medical fluid delivery system capable of removing cytokine inducing substances (CIS) from a medical fluid.
Abstract:
The present invention relates to a method for exchanging heat between an effluent fluid (4) and a treatment fluid (5, 7, 9) and a heat exchanger (11) for heat exchange as well as an arrangement and a kit comprising a heat exchanger. The heat exchanger comprises a first and a second fluid circuit (19, 20) extending through the heat exchanger. The heat exchanger further comprises a stack of fluid plates (12, 13, 40) and a membrane (16) arranged between each of the fluid plates (12, 13, 40) where one interspace is formed between each fluid plate and membrane. The first and the second fluid circuit (19, 20) is each constituted by a passage extending through the fluid plates and membranes and along the fluid plates and membranes in at least two interspaces (17, 18). According to the method for heat exchanging an effluent fluid (4) is passed through the first fluid circuit (19) and a treatment fluid (5, 7, 9) is passed through the second fluid circuit (20) such that the effluent fluid (4) is passed along one side of a membrane (16) and simultaneously the treatment fluid (5, 7, 9) is passed along the other side of the membrane (16). Heat is thus exchanged between the effluent fluid (4) and the treatment fluid (5, 7, 9) over the membrane (16).
Abstract:
Systems and methods for improving medical fluid delivery systems, such as hemofiltration ("HF") and hemodiafiltration ("HDF") are provided. In first embodiments, systems and methods for selectively performing pre-and postdilution HF and HDF clearance modes is provided. In other embodiments, systems and methods for providing prime bolus and rinseback fluid volumes before, during and/or after HF and HDF therapies are provided. In further embodiments, improved systems and methods for removing ultrafiltrate from the patient are provided. Still further, improved filtration configurations and methods are provided.
Abstract:
It is an object of the invention to provide a process for preparing stock solution compositions for especially blood dialysis, and also to provide soft bags employed in said process. Soft bags are prepared each of which contains powder components of a stock solution composition for preferably blood dialysis and preferably containing a stirrer. A predetermined amount of water or a water solution is supplied to the soft bag, and the contents of the soft bag are stirred by means of a magnetic field, so that the aimed stock solution composition can be prepared very easily in a short period of time.
Abstract:
It is disclosed an apparatus for extracorporeal blood treatment (1) having a control unit (15) connected to an ultrafiltration device (20) and to a fluid preparation section (30) of fresh dialysis liquid. The control unit (15) is configured to receive measured values of the change of blood volume, the amount of ultrafiltration volume, and conductivity or to the concentration for at least one substance in the blood (BV%mes(t); UFmes(t), WLmes(t); Cbmes(t)); the control unit (15) is also configured to receive prescription values for the same parameters and to control ultrafiltration and adjust conductivity in the fresh dialysis liquid based on the difference between said measured values and said prescription values.
Abstract:
Die Erfindung betrifft ein Verfahren zum Dosieren eines mittels einer Blutbehandlungsvorrichtung (100) erzeugten Substituats, wobei das Dosieren mittels einer Hydraulik (1) der Blutbehandlungsvorrichtung (100) erfolgt, wobei die Hydraulik (1) wenigstens eine in einen Dialysator (5) mündende Dialysierflüssigkeitszulaufleitung (3) und wenigstens eine Substituatleitung (9) aufweist, und wobei das Regeln oder Steuern der Größe des Anteils, welcher die zweite Filterstufe (F05) durchtritt, durch Einwirken auf wenigstens eine Fördervorrichtung (11, 12, 31) und/oder wenigstens eine Flussbegrenzungseinrichtung (Vdia, Vsub, 21) und/oder ein Flussteilerventil (37), welche jeweils in der Dialysierflüssigkeitszulaufleitung (3) und/oder der Substituatleitung (9) und/oder in der die Dialysierflüssigkeitszulaufleitung (3) mit der Substituatleitung (9) verbindenden Abzweigleitung (35) vorliegen oder wirken. Die Erfindung betrifft ferner eine Steuereinrichtung, eine Blutbehandlungsvorrichtung (100) und eine medizinische Funktionsvorrichtung. Sie betrifft zudem ein digitales Speichermedium, ein Computerprogramm-Produkt sowie ein Computerprogramm.
Abstract:
An apparatus (1 ) for extracorporeal blood treatment is described, comprising a treatment unit (2), an extracorporeal blood circuit (8), an infusion line (9, 9a, 9b) of a replacement fluid, a dialysis line connected in inlet to the second chamber (4), and a fluid evacuation line (10). The apparatus further comprises sensors for determining a first parameter relating to a patient's blood volume (BV%) a second parameter relating to an ultrafiltration flow rate (UFR) or to a patient's weight loss rate (WLR), a third parameter (Cd, Na) relating to a conductivity or concentration of a liquid crossing the dialysis line and/or the infusion line, and a fourth parameter relating to an infusion flow rate (Q INF )- Lastly, the apparatus comprises a control unit for performing a control procedure (50) for regulating a variation in blood volume (BV%) and a setting sequence (200) for imposing a transmembrane pressure (TMP) to values which enable maximising the convective exchanges.
Abstract:
Dialysis systems comprising actuators that cooperate to perform dialysis functions and sensors that cooperate to monitor dialysis functions are disclosed. According to one aspect, such a hemodialysis system comprises a user interface model layer, a therapy layer, below the user interface model layer, and a machine layer below the therapy layer. The user interface model layer is configured to manage the state of a graphical user interface and receive inputs from a graphical user interface. The therapy layer is configured to run state machines that generate therapy commands based at least in part on the inputs from the graphical user interface. The machine layer is configured to provide commands for the actuators based on the therapy commands.
Abstract:
An apparatus for online preparation of a medical liquid comprises a main preparation line (26) having three injection points (37, 29, 44) of three concentrates. An injection line (27) of a concentrate comprises a source (28) of concentrate, a dilution point (33) which water flows into, a first injection pump (34) commanded by means of a signal supplied by a conductivity sensor (30) located between the point of dilution and the injection point, and a second injection pump (35) commanded to operate at a constant velocity. The apparatus is for preparing a dialysis liquid and/or a replacement liquid in a machine for hemodiafiltration. The apparatus gives a precise dosage of the concentrate.
Abstract:
A method and device for blood treatment involving infusion of replacement fluid are provided. In an embodiment, fluid is passed either by pump or passively by gravity feed, through a microporous sterilization filter (11) from a fluid source to a replacement fluid container (1). The latter forms a batch that may be used during treatment. The advantage of forming the batch before treatment is that the rate of filtering need not match the rate of consumption during treatment. As a result, the sterilization filter (11) can have a small capacity. In another embodiment, a filter (11) is placed immediately prior to the point at which replacement fluid is injected into the patient's bloodstream. The latter may be used in combination with the former embodiment as a last-chance guarantee of sterility and/or that the fluid is free of air bubbles. It may also be used as the primary means of sterile-filtration.