Abstract: A pressure compensation valve for a dialysis machine is disclosed. The pressure compensation valve has a valve housing, in which a flow path with fresh dialysate is separated from a flow path with exhausted dialysate by a diaphragm. The diaphragm and the valve housing are configured such that pressure compensation is possible. In addition, the diaphragm is configured such that no vibrations or a reduced amount of vibrations and/or no noise emission or a reduced amount of noise emission will occur during operation. Furthermore, a dialysis machine comprising such a pressure compensation valve is disclosed. The dialysis machine comprises a balancing unit, and the pressure compensation valve is arranged on the outlet side of the balancing unit.

Abstract: A renal therapy apparatus including at least two feedback controls is disclosed. Each control includes an estimated volume calculator to calculate an estimated volume based on a set flow, a comparator to compare the estimated volume with a measured volume, a volume deviation determining means to determine a volume deviation based on the comparison, a correction calculator to calculate a correction based on the volume deviation, a flow control generator to generate a flow control signal based on the calculated correction amount and the set flow, and a feedback control output to output the controlled flow control signal to a pump associated with each feedback control.

Abstract: Devices for preparing a liquid solution are disclosed. The device includes a receptacle defining a cavity for receiving at least one active substance to be dissolved, at least one inlet leading into the cavity for feeding at least one solvent into the cavity, and at least one outlet leading out of the cavity for discharging the liquid solution including the at least one active substance and the at least one solvent from the cavity. The cavity or the receptacle may include a flexible outer shell for enclosing the cavity and an inner, preferably columnar, supporting element for stretching the flexible outer shell between at least two points, the supporting element comprising the at least one inlet at its first end and the at least one outlet at its second end and being enclosed by the flexible outer shell to provide an axially rigid cartridge that can be used in currently customary dialysis machines comprising cartridge connection systems, which can be produced at low cost.

Abstract: An attachment assembly for attaching a fluid container to a fluid warmer of a system for extracorporeal blood treatment is disclosed. The assembly includes a hook-shaped fixture located on the fluid warmer, a pin-shaped fixture located on the fluid warmer, and receiving members located on the fluid container to receive the hook-shaped fixture and the pin shaped fixture located on the fluid warmer. A fluid warmer containing a hook-shaped fixture located on the fluid warmer and a pin-shaped fixture located on the fluid warmer of a fluid bag attachment assembly is also disclosed. Tubing guides present on the fluid warmer in conjunction with tubes of differing lengths attached to the fluid bag reduce the occurrence of usage errors during insertion of the fluid bag into the fluid warmer.

Abstract: A multifunctional handle for a blood treatment machine for moving the blood treatment machine by hand and also for the coiling of cables, with a placement segment and a slip prevention segment which protrudes from a first end of the first flat section at an angle from the first flat section and which is designed ergonomically to be grasped by a hand.

Abstract: An ultrasound-based air bubble and/or solid detector comprising an ultrasonic transmitter for transmitting ultrasound through a medium to be examined, wherein the ultrasound is adapted to be received by an ultrasonic receiver. Energy input of the ultrasound into a medium to be monitored may be limited and/or monitored and/or adapted.

Abstract: A connector adapted to be detachably arranged in an opening of a housing of a medical device and including a connecting element to which a single-use article can be connected outside of the housing is disclosed. Via a hollow link portion the connecting element is connected to a coupling adapted to be inserted into the interior of the housing through the opening of the housing. Moreover, the connector includes a spring element adapted to be detachably arranged at the link portion so that the connector is supported at the housing to be axially resilient via the spring element. A medical device for extracorporeal blood treatment including such connector as an interface to a single-use article, for example, is also disclosed.

Abstract: A method and apparatus for the treatment of blood are disclosed allowing for the determination of an internal convection in a blood purification device e.g. in the form of a dialyzer. The internal convection in the purification device can be determined on the basis of pressure differences in the purification device. The blood purification may be, for instance, a hemodialysis or a hemodiafiltration. Pressure sensors serve for measuring the pressures of the blood at the input and/or output of the purification device as well as optionally for detecting the pressure of a cleaning fluid or dialysis fluid at the input and/or output of the purification device.

Abstract: The invention relates to an extracorporeal blood treatment machine, such as a dialysis machine, comprising leakage detection as well as to a method of detecting leakages in the dialysis fluid circuit of a dialysis machine, wherein at least part of the dialysis fluid system to be monitored in terms of leakage is accommodated in a hermetically sealed housing and the housing is or can be ventilated in a controlled manner, and wherein a parameter, such as the air humidity of the air flowing into the housing is compared to a corresponding parameter, preferably air humidity of the air flowing out of the housing.

Abstract: A solution circuit apparatus for a blood purification system having an extracorporeal blood circuit. The solution circuit apparatus includes a solution source; a warmer having a temperature sensor; a bypass branch; a delivery branch communicating with the extracorporeal blood circuit; a pump; a switch; and a control unit configured to set the solution circuit apparatus into one of a solution delivery condition and a solution stop condition. In the solution delivery condition the switch interrupts the bypass branch, and the pump delivers solution via the warmer and through the delivery branch. In the solution stop condition the switch interrupts the delivery branch, and the pump recirculates solution through the warmer via the bypass branch. In the therapy stop condition the pump rate is dependent on the output of the temperature sensor.

Abstract: A method for monitoring conveyance of fluid in a device for extracorporeal blood treatment, whereby fluid is conveyed by a peristaltic pump in a fluid system from a low-pressure side to a high-pressure side in that an elastically deformable fluid line positioned between the low-pressure side and the high-pressure side is deformed between a support surface and at least two squeeze elements of a rotor rotating opposite the support surface in such a way that a conveyance volume section is formed between the squeeze elements, whereby a fluid pressure value in the fluid system is detected for the conveyance volume section that is specific to the conveyance volume section, and whereby the detected conveyance-volume-specific fluid pressure value of a conveyance cycle n is compared with the detected conveyance-volume-specific fluid pressure value of a previous conveyance cycle n?x.

Abstract: A method for producing a hollow fiber pre-product for a dialysis membrane is disclosed. The dialysis membrane includes a distribution of the pore sizes which follows an exponential function such as an e-function. The inverse value of the exponential coefficient (K) is at least 30 nm2. The dialysis membrane includes at least 50 pores per ?m2 and the share of a free flow area at a surface of the dialysis membrane amounts to at least 2.5%.

Abstract: A dialysis machine having a housing and a monitor is disclosed. Situated on a front side of the housing is a front door, on the top side of which a monitor housing is formed and a monitor is fastened. The monitor is situated, at least in portions, above a top side of the housing. A comparatively low, and therefore ergonomic, storage surface may be formed or situated behind the monitor on the top side of the housing.

Abstract: Dialysis systems including a water treatment unit preferably of the osmosis type, a drain line, and a heat exchanger are disclosed. A water supply line is connected to an outlet of the water treatment unit. The water supply line includes branch connections to which dialyzers are selectively fluid-coupled. Used-up dialysis fluid can be discharged from fluid-coupled dialyzers through the drain line. The heat exchanger, which is external to the dialyzers, connected on one side to the water supply line directly upstream of the branch connections and on the other side to the drain line.

Abstract: The invention relates to an extracorporeal blood treatment machine, such as a dialysis machine, comprising leakage detection as well as to a method of detecting leakages in the dialysis fluid circuit of a dialysis machine, wherein at least part of the dialysis fluid system to be monitored in terms of leakage is accommodated in a hermetically sealed housing and the housing is or can be ventilated in a controlled manner, and wherein a parameter, such as the air humidity of the air flowing into the housing is compared to a corresponding parameter, preferably air humidity of the air flowing out of the housing.

Abstract: A sterile packaging unit of a medical filter module including a filter module packed in a sterile primary package, wherein the primary package is a blister package including a molded part having a receiving compartment for the filter module and a cover part arranged on the molded part and hermetically sealing the receiving compartment, wherein the primary package includes a getter for binding molecular oxygen present in the receiving compartment and the filter module is mounted by form closure with respect to the molded part.

Abstract: An extracorporeal blood treatment device is disclosed. The device includes a blood treatment unit connected to an extracorporeal blood circuit, a waste liquid discharge line for evacuating waste treatment liquid from the blood treatment unit, and a collecting container for collecting waste treatment liquid evacuated via the waste liquid discharge line. The collecting container is removably connected to the waste liquid discharge line via a one way valve. A collecting container for a device is also disclosed. The container includes a waste fluid input line, wherein a one way valve is arranged in the waste fluid input line.

Abstract: A device for extracorporeal blood treatment is disclosed that includes a detection equipment for detecting uremic toxins in a used dialysis liquid by measuring the absorbance, the detection equipment being provided at such a position downstream the outflow of the dialysis liquid from a filter element that at least one of the following requirements is fulfilled: a) the filling volume of the fluid line and of the components starting from the outflow of the used dialysis liquid from the filter element to the detection equipment is less than or equal to 100 ml; and b) the length of the fluid line starting from the outflow of the used dialysis liquid from the filter element to the detection equipment is at most 250 cm.

Abstract: Methods for customization of a user interface of a microprocessor controlled medical apparatus for extracorporal blood treatment are disclosed, whereby the medical apparatus comprises a software component driving the user interface on a touch screen of the medical apparatus, and the software component has a technical support and maintenance mode and a treatment mode. At least one target window is displayed on the touch screen during therapy in the treatment mode, and such target window shows at least data regarding measured and/or set values of the therapy, whereby at least the appearance of one target window is modified by a customization procedure that is performed within the target window in the treatment mode. The invention further relates to a medical apparatus for extracorporal blood treatment that uses the method.