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.

The disclosure relates to a pump for implantation into a vessel or a heart, with the pump being introduced in a first state into the vessel or heart in order then be functionally changed over to a second state in the vessel or in the heart, having a drive part and a delivery part, where the drive part is not functional in the first state and becomes functional as a result of the changeover to the second state, wherein the drive part has an electric motor, where the electric motor is embodied as a wet rotor, and where, in the first state, the rotor of the electric motor and the stator of the electric motor are arranged so as to be separate from one another, and where the rotor of the electric motor is moved into the stator of the electric motor in the second state, where the rotor can drive the delivery part in the second state.

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.

A medical fluid delivery machine includes a medical fluid pump, at least one of a positive air pressure source or a negative air pressure source for supplying positive or negative pressure air, a pneumatic manifold including an air passageway, a pneumatic valve, and a gasket. The pneumatic valve includes a pneumatic port having a mating threaded portion and a smooth portion.

A medical fluid delivery machine includes a medical fluid pump, at least one of a positive air pressure source or a negative air pressure source for supplying positive or negative pressure air, a pneumatic manifold including an air passageway, a pneumatic valve, and a gasket. The pneumatic valve includes a pneumatic port having a mating threaded portion and a smooth portion.

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.

The invention relates to an apparatus and a process for mass- and/or energy-transfer between two media, in particular between blood and a gas/gas mixture, having a chamber (1) through which a first medium, in particular blood, flows and in which a bundle of mass- and/or energy-permeable hollow fibers through which the second medium can flow and around which the first medium can flow is arranged transverse to the flow direction of the first medium, in which the chamber (1) is configured as an elastic shell (3) at least in a region which completely surrounds the bundle, where a rigid housing (6) is arranged around the elastic shell (3) and the inner wall of the housing contacts the shell (3) in a plurality of first regions (9) and the inner wall of the housing is not in contact with and is in particular at a spacing from the shell (3) in at least one second region (10), preferably a plurality of second regions (10) in the direction of the extension of the hollow fibers, where the one hollow space or at least one of the plurality of hollow spaces formed in the second regions (10) between shell (3) and housing (6) joins a fluid connection (11) passing through the wall of the housing.

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 method for pumping and oxygenating blood includes receiving a flow of gas including oxygen into a gas inlet manifold via a gas inlet. The flow of gas is passed through the hollow fibers from the gas inlet manifold to a gas outlet manifold. The flow of gas is output from the gas outlet manifold via a gas outlet. An impeller is rotated to generate a flow of blood that flows over the hollow fibers. Oxygen from the flow of gas is transferred to the flow of blood through the hollow fibers. Carbon dioxide is transferred from the flow of blood to the flow of gas through the hollow fibers.

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.