A method and a system (10a) comprising an integrated water purifying apparatus (110) with a pre-filter circuit (402) including a particle filter and an activated carbon filter arranged to produce pre-treated water; a fluid circuit (404) arranged to receive pre-treated water from the pre-filter circuit (402), the fluid circuit (404) includes an RO-pump (450) and a Reverse Osmosis, RO, device, (301) arranged to produce purified water; a heating device (302) arranged to heat purified water from the RO device (301) to a temperature above 65°; the water purifying apparatus (110) is further arranged to heat disinfect the fluid circuit (404) using the heated purified water. The system (1) further comprises a line set (40) connected to the purified water outlet connector (128) at a water line connector (68) of the line set (40), wherein the line set (40) includes at least one sterile sterilizing grade filter (70a, 70b) arranged to filter the purified water into sterile purified water.

The invention relates to a system of performing an evidence Dialysis modality of Batch, Tidal or a combination of both. The system: isolates cavity volume changes due only to ultrafiltrate; determines the volume of a patient cavity; determines a full cavity; determines an objective time to initiate an exchange; and determines an empty cavity. One or more combination of these features provide for evidence base Fill, Dwell, and Drain sequences. The system comprises: a cassette having a heated region and a sensor region for measurements. A valve manifold supplies a patient connection with fluid. A microprocessor receives pressure measurements, controls the heated region and activates a volumetric pump to deliver or extract discrete increments of the fluid to the cassette from bags. Filtering pressure measurements to remove rapid fluctuations determines an accumulated pressure in the patient cavity. The volume of fluid in the patient cavity correlates to the accumulated pressure.

A peritoneal dialysis system includes a control unit configured to cause (i) a fluid inlet valve and a fluid outlet valve to occlude a fluid inlet line and a fluid outlet line, respectively, while a linear actuator moves a piston to create a positive pressure within a pump housing, the positive pressure measured by a pressure sensor, and (ii) the fluid inlet valve to occlude the fluid inlet line and the fluid outlet valve to open the fluid outlet line, while the linear actuator moves the piston so as to maintain the positive pressure within the pump housing while fluid is pumped out of the fluid pump chamber via the opened fluid outlet line.

Treatment controllers and methods are provided that can be integrated with treatment systems, such as peritoneal dialysis systems, hemodialysis systems, and nocturnal treatment systems, to manage execution of treatment operations or a course of treatment based on timing information and/or patient sleep state.

A graphical user interface for a medical system comprises a display device, an electronic processor that operates with the display device to display a plurality of screens including a programming screen by which a user can enter or modify medical treatment parameters employed by a machine to perform a medical treatment. When a user modifies a first medical treatment parameter, the processor is programmed to adjust at least one other medical treatment parameters depending on the first medical treatment parameters.

A dialysis machine (e.g., a peritoneal dialysis (PD) machine) can include a pressure sensor mounted at a proximal end of a patient line made of a distensible material that provides PD solution to a patient through a catheter. During treatment, an occlusion can occur at different locations in the patient line and/or the catheter. When an incremental volume of additional solution is provided to the patient line while the occlusion is present, a change in pressure results. The change in pressure depends on dimensions and a distensibility of a non-occluded portion of the patient line. If the change in pressure, the incremental volume, properties related to the distensibility of the patient line, and some of the dimensions of the patient line are known, a location of the occlusion can be inferred. An occlusion type can be inferred based on the location of the occlusion.

A fluid pumping system may comprise a pump and a fluid line state detector having, a receptacle, at sensor, and an illuminator. The system may further comprise a fluid transfer set including an output line for mating into the receptacle. The system may further comprise a controller in data communication with the fluid line state detector configured to power the illuminator and monitor an output signal of the sensor when the outlet line is in the receptacle to determine a dry tube light intensity value. The controller may be further configured to govern operation of the pump to prime the output line with fluid. The controller may be further configured to power the illuminator, monitor the output signal, and halt operation of the pump when the output signal indicates the light intensity value has dropped below a primed line threshold which is dependent upon the dry tube intensity value.

A fluid handling cassette, such as that useable with an automated peritoneal dialysis (APD) cycler device or other infusion apparatus, may include a generally planar body having at least one pump chamber formed as a depression in a first side of the body and a plurality of flowpaths for a fluid that includes a channel. A patient line port may be arranged for connection to a patient line and be in fluid communication with the at least one pump chamber via at least a first one of said flowpaths, and an optional membrane may be attached to the first side of the body over the at least one pump chamber. In one embodiment, the membrane may have a pump chamber portion with an unstressed shape that generally conforms to the depression of the at least one pump chamber in the body and is arranged to be movable for movement of the fluid in a useable space of the at least one pump chamber. One or more spacers may be provided in the at least one pump chamber to prevent the membrane from contacting an inner wall of the at least one pump chamber. The patient line, a drain line, and/or a heater bag line may be positioned to be separately occludable in relation to one or more solution lines that are connectable to the cassette.

A dialysis method to enable a patient to undergo both peritoneal dialysis and extracorporeal blood treatments is disclosed. The method includes determining, via a base unit controller, whether a peritoneal dialysis treatment or an extracorporeal blood treatment is to be performed. If the peritoneal dialysis treatment is to be performed, the method includes operating first software instructions that cause a base unit to use a first fluid stored in a fluid container. If the extracorporeal blood treatment is to be performed, the method includes operating second software instructions that cause the base unit to use a second, different fluid from an online source and selectively move the second, different fluid to a blood treatment unit for use in the extracorporeal blood treatment. The blood treatment unit is operable with the base unit to perform the extracorporeal blood treatment on a patient.

A medical fluid system includes a container holding a fluid at a level; and a radio frequency level sensor operably connected to the container and including an emitting electrode and a receiving electrode, the electrodes operating as a transmission line having an electrical impedance that varies with the level or volume of the fluid in the container, the level sensor configured to measure a phase shift of the transmission line, the phase shift indicative of the level or volume of the fluid in the container.