A peritoneal dialysis (PD) system includes a PD fluid pump, a disinfection loop including the PD fluid pump, the disinfection loop including PD fluid used for disinfecting the disinfection loop, and an acid solution source positioned and arranged to supply an acid solution to the disinfection loop during disinfection using the PD fluid. The disinfection loop includes an airtrap and a pressure sensor positioned and arranged to sense PD fluid pressure during disinfection, the pressure sensor outputting to a control unit, the control unit configured to open at least one gas valve located along at least one gas line leading to an upper portion of the airtrap when the PD fluid pressure reaches or exceeds a threshold PD fluid pressure due to gas formation caused by mixing the acid solution with the PD fluid.

A peritoneal dialysis (PD) system includes a PD machine including a housing, a PD fluid pump housed by the housing, a plurality of PD fluid lines, and a plurality of PD fluid line connectors positioned and arranged at the housing to accept distal ends of the PD fluid lines to perform a disinfection sequence. The PD system also includes a disinfection unit including a disinfection unit housing, a PD fluid line connector positioned and arranged at the disinfection unit housing for receiving one of the PD fluid lines of the PD machine for the disinfection sequence, a line extending from the disinfection unit housing for connecting to one of the PD fluid line connectors of the PD machine for the disinfection sequence, and a disinfection fluid pump housed by the disinfection unit for pumping disinfection fluid during the disinfection sequence.

Systems, devices, and methods are provided for sensing gas bubbles within a liquid flow line, such as within a medical device. The systems, devices, and methods can measure a change in capacitance across a pair of conductive plates to calculate a volume of gas in a flow line. If a calculated volume of gas exceeds an established threshold, an alert can be sent and/or changes made to operation of the device.

An automated peritoneal dialysis system and machine configured to perform dextrose mixing are disclosed. An example dialysis machine includes a pump, a first solution having a first formulation stored in a first container that is placed in fluid communication with the pump, and a second solution having a second formulation stored in a second container that is also placed in fluid communication with the pump. The first container has a first unique identifier indicative of the first formulation and the second container has a second unique identifier indicative of the second formulation. The dialysis machine also includes a logic implementer programmed to receive a therapy prescription and operate the pump if the first formulation indicated by the first unique identifier is specified by the therapy prescription, or the second formulation indicated by the second unique identifier is specified by the therapy prescription.

An automated peritoneal dialysis system provides both cycler-assisted peritoneal dialysis treatment. The system includes a fluid preparation and treatment device with concentrate dilution components connected to a source of purified water and medicament concentrate. The treatment device has at least one mixing container connected via a pump and valves to the sources, the valves and the pump mixing and diluting the concentrate to form a medicament. Conductivity sensors are provided for fluid quality measurement, calibration, error trapping, and fluid characterization.

A peritoneal dialysis system includes a cycler including a pump actuator, a heater and a heating pan operable with the heater, and a disposable set operable with the cycler. The heating pan includes a sidewall forming a slot. The disposable set includes a pumping cassette and a heater/mixing container. The pumping cassette includes a pump chamber configured to be actuated by the pump actuator. Additionally, the heater/mixing container is in fluid communication with the pumping cassette and is sized to be received at the heating pan. The heater/mixing container includes a port configured such that when the port is slid into the slot of the heater pan sidewall, the port is prevented from rotating about an axis transverse to a direction of flow through the port.

The invention relates to systems and methods for making intracycle adjustments to an osmotic agent concentration of peritoneal dialysate inside the peritoneal cavity of a patient. The systems and methods include osmotic agent sources, flow paths, and processors to adjust the osmotic agent concentration of dialysate in the peritoneal cavity of the patient. The method can include infusing peritoneal dialysate containing an osmotic agent into the peritoneal cavity of a patient; monitoring one or more patient parameters; and adjusting the osmotic agent concentration of the peritoneal dialysate in the peritoneal cavity of the patient by infusing a concentrated osmotic agent solution or by infusing sterile fluid into the peritoneal cavity of the patient using an on-line peritoneal dialysis machine. The system can include a peritoneal dialysis cycler.

The present invention relates to a peritoneal dialysis machine having means for carrying out a peritoneal dialysis treatment, wherein the machine has a drain line which is connected or connectable to the patient catheter and through which consumed dialysis solution is conducted into a drain, wherein the drain line does not open into a drainage bag and wherein the drain line is connected at an opening to a venting line by means of which the venting line can be vented, with a sterile filter being arranged in the drain line upstream of the opening and/or in the venting line and with a cut-off means by means of which the drain line can be cut off at times is provided in the drain line upstream of the opening.

A medical treatment system, such as peritoneal dialysis system, may include control and other features to enhance patient comfort and ease of use. For example, a peritoneal dialysis system may include a control system that can adjust the volume of fluid infused into the peritoneal cavity to prevent the intraperitoneal fluid volume from exceeding a pre-determined amount. The control system can adjust by adding one or more therapy cycles, allowing for fill volumes during each cycle to be reduced. The control system may continue to allow the fluid to drain from the peritoneal cavity as completely as possible before starting the next therapy cycle. The control system may also adjust the dwell time of fluid within the peritoneal cavity during therapy cycles in order to complete a therapy within a scheduled time period. The cycler may also be configured to have a heater control system that monitors both the temperature of a heating tray and the temperature of a bag of dialysis fluid in order to bring the temperature of the dialysis fluid rapidly to a specified temperature, with minimal temperature overshoot.

Dialysis systems and methods for operating dialysis machines (e.g., peritoneal dialysis machines) for conducting dialysis treatments, may include a dialysis machine for transferring dialysate to a patient from a dialysate bag, and a warmer pouch for flowing the dialysate through to heat to a predetermined temperature before flowing into the patient. The dialysate may flow from the dialysate bag through the warmer pouch for pumping into the patient via tubing. A filter may be coupled to the warmer pouch, and the filter may be configured to filter out air content from the dialysate.