An apparatus for treating a medical fluid is provided which includes a treatment machine having a coupling surface, with a cassette made of a hard part having liquid-conducting passages which are covered by a flexible film being able to be coupled to the coupling surface of the treatment machine. A corresponding medical cassette is also provided. An air-free coupling of the flexible film of the cassette to the treatment machine is ensured in that air can be sucked out areally along a plane between the flexible film and the coupling surface during the coupling process and/or with a coupled cassette. A method for coupling the cassette and a method for checking the leaktightness of the cassette via the vacuum control of the air suction is also provided.

The present invention relates to a method for querying a specification feature arranged in, at or on a medical technical functional means, the method comprising the step of: querying the specification feature by means of a medical device functionally coupled to or to be coupled to the medical technical functional means or by means of a device or means connected to or being arranged in signal transmission with the medical technical treatment apparatus. The invention further relates to a medical technical functional means, a medical device and a control unit. Furthermore, the present invention relates to a digital storage medium, a computer program product and a computer program.

A medicament preparation system includes a disposable cartridge with a flow path. Various sensors may be placed on the cartridge to measure qualities of the fluid flowing through the flow path. The sensors are placed in precise locations using various approaches that make manufacturing of the cartridge efficient and repeatable. A drain line that is susceptible to fouling may be preattached and various approaches are used to remove or reduce the fouling. An elastomeric contact can also be present in the medical preparation system and used in a conductivity measurement subsystem.

A renal failure therapy machine includes a blood cleaning filter, a sorbent device configured to regenerate used therapy fluid from the blood cleaning filter, a therapy fluid pump configured to pump regenerated therapy fluid from the sorbent device back to the blood cleaning filter, and a flow restrictor in fluid communication with the blood cleaning filter, the therapy fluid pump and the sorbent device, the flow restrictor configured to cause regenerated therapy fluid pumped by the therapy fluid pump from the sorbent device to the blood cleaning filter to be pressurized so that a first amount of the regenerated therapy fluid performs convective clearance and a second amount of the regenerated therapy fluid performs diffusive clearance.

A dialysis system includes a dialysis machine configured to control fluid loss or ultrafiltration (UF) volume over a treatment; a graphical user interface (GUI) that allows selection of a prescription entry for the treatment; and a processor operating with the GUI, the processor programmed to (i) receive a plurality of prescription entries via a local or wide area mode of data communication, each prescription entry including at least one prescribed parameter for operating the dialysis machine to control the fluid loss or UF volume, and (ii) enable an operator to choose between the prescription entries provided at the GUI, and select one of the prescription entries for the treatment.

Aspects of the present invention relate to a blood perfusion reservoir device including a housing forming proximal and distal chambers, the housing having proximal and distal openings, a valve having a proximal end, a distal end and a length forming a lumen therebetween, the valve being positioned within the housing such that the proximal end passes through the proximal opening of the housing, the distal end passes through the distal opening of the housing, and the length passes through the proximal and distal chambers of the housing, wherein the valve is configurable between a first and second position, the first position forming a first flow path and the second position forming a second flow path, a filter reservoir having a frame with a filter media forming proximal and distal filter regions with a proximal opening, and positioned within the housing fixedly attached to the valve and surrounding a length of the valve, wherein the first flow path fluidly connects the proximal and distal openings, and the flow bypasses the proximal and distal chambers, the proximal and distal filter regions, and the second flow path fluidly connects the proximal and distal openings, and the flow passes through proximal and distal chambers and the proximal and distal filter regions.

A dialysis system includes a fresh dialysis fluid pump, a used dialysis fluid pump, a fresh fluid flow path, a used fluid flow path, and a dialysis fluid cassette carrying a balance chamber, the balance chamber including a first rigid portion, a second rigid portion, and a flexible sheet located between the first and second rigid portions, the flexible sheet dividing the balance chamber into (i) a fresh dialysis fluid compartment connected fluidly to the fresh dialysis fluid pump via the fresh fluid flow path, wherein fresh dialysis fluid contacts the first rigid portion and a first side of the flexible sheet, and (ii) a used dialysis fluid compartment connected fluidly to the used dialysis fluid pump via the used fluid flow path, wherein used dialysis fluid contacts the second rigid portion and a second side of the flexible sheet.

A hemodialysis system comprising: a source of priming fluid; an extracorporeal circuit including an arterial line, a venous line, and a drip chamber; a level sensor operable with the drip chamber; a reversible blood pump operable with the extracorporeal circuit; a connection between the arterial and the venous line; and a priming sequence in which priming fluid from the source is pumped in a reverse pump direction through the extracorporeal circuit and reversibly in a normal pump direction through the extracorporeal circuit, wherein an output from the level sensor is used to determine when to stop pumping in at least one of the directions.

A dialysis system includes a dialysis fluid cassette-based membrane blood pump; a dialyzer in fluid communication with the blood pump; first and second dialysis fluid cassette-based balance chambers each having (i) a fresh dialysis fluid compartment in fluid communication with the dialyzer and (ii) a spent dialysis fluid compartment; a dialysis fluid cassette-based fresh dialysis fluid membrane pump in fluid communication with the fresh dialysis fluid compartments of the first and second balance chambers; a dialysis fluid cassette-based spent dialysis fluid membrane pump in fluid communication with the dialyzer and the spent dialysis fluid compartments of the first and second balance chambers; and arterial and venous lines in fluid communication with the dialyzer for patient connection, the arterial and venous lines each including a contact used for electrically detecting a patient access disconnection.

The present invention relates to a method for querying a specification feature arranged in, at or on a medical technical functional means, the method comprising the step of: querying the specification feature by means of a medical device functionally coupled to or to be coupled to the medical technical functional means or by means of a device or means connected to or being arranged in signal transmission with the medical technical treatment apparatus. The invention further relates to a medical technical functional means, a medical device and a control unit. Furthermore, the present invention relates to a digital storage medium, a computer program product and a computer program.