An extracorporeal blood filtering machine can include a blood circuit, an effluent circuit, and a source fluid circuit and can be controlled by a controller. The extracorporeal blood filtering machine can also include access ports for connecting the source fluid circuit to the blood circuit, as well as blood sensors to detect possible issues with the extracorporeal blood filtering machine. The extracorporeal blood filtering machine can include density sensors and flow sensors that enable it to be more accurate and to operate while being transported. The extracorporeal blood filtering machine can further include a user interface and can display fluid inflow/outflow information. A medical fluid container can automatically empty after being filled. An apparatus for supporting a medical fluid container can include a hanger and an attachment member with the apparatus able to adjust to ensure the medical fluid container remains properly oriented directly under a medical fluid container scale.

An apparatus for extracorporeal treatment of fluid and a process of setting up a medical apparatus for the delivery or collection of fluids are disclosed. According to the apparatus and the process, a control unit (10) is configured calculate set values of two or more of the fluid flow rates based on a fluid flow rate set by the operator and on a prescribed dose value (D.sub.set).

An apparatus for extracorporeal treatment of fluid and a process of setting up a medical apparatus for the delivery or collection of fluids are disclosed. According to the apparatus and the process, a control unit (10) is configured calculate set values of two or more of the fluid flow rates by imposing that an emptying time of containers of fresh fluid (16, 20, 21, 26) and/or a filling time of a waste container is substantially same as, or multiple of, the emptying time of one or more of the other containers of fresh fluid.

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. A flow correction distributor includes an input to receive correction signals from the correction calculator, a limited correction signal calculator to calculate a limited correction signal for the input correction required signals, and an output to output each calculated limited correction signal to the feedback control from which its underlying correction required signal has been received.

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 renal therapy system includes: a filter; an arterial blood flowpath in fluid communication with the filter; a venous blood flowpath in fluid communication with the filter; a renal therapy fluid flowpath in fluid communication with the filter; first and second renal therapy fluid pumps; a plurality of valve actuators; and a dialysis fluid cassette including a plurality of valve portions configured to operate with the plurality of valve actuators so that (i) the first renal therapy fluid pump pumps renal therapy fluid through the renal therapy fluid flowpath for a number of first pump actuations, and (ii) the second renal therapy fluid pump pumps renal therapy fluid through the renal therapy fluid flowpath for a number of second pump actuations.

A renal failure therapy machine includes a blood cleaning filter, a dialysis fluid circuit including a balance chamber, the balance chamber including a fresh dialysis fluid compartment configured to send fresh dialysis fluid to the blood cleaning filter and a used dialysis fluid compartment configured to receive used dialysis fluid from the blood cleaning filter, a fresh dialysis fluid line in fluid communication with the fresh dialysis fluid compartment of the balance chamber and the blood cleaning filter, and a flow restrictor in fluid communication with the blood cleaning filter, the flow restrictor configured to cause fresh dialysis fluid delivered from the fresh dialysis fluid compartment, through the fresh dialysis fluid line, to the blood cleaning filter to be pressurized so that a first amount of the fresh dialysis fluid performs convective clearance and a second amount of the fresh dialysis 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.

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.

Extracorporeal blood treatment apparatus and methods including a main treatment unit and an auxiliary treatment unit, along with one or more sensors for determining a parameter related to a pressure drop across the auxiliary treatment unit, and a control unit configured to control a flow regulator at least based on the parameter value.