A peritoneal dialysis system includes: a dialysis fluid pump including a pump actuator and a dialysis fluid contacting portion actuated by the pump actuator; a fresh dialysis fluid valve located upstream of the pump and including a fresh valve actuator and a dialysis fluid contacting portion actuated by the fresh valve actuator; a patient line valve located downstream of the pump and including a patient line valve actuator and a dialysis fluid contacting portion actuated by the patient line valve actuator; a drain valve positioned and arranged to receive used dialysis fluid from the patient and including a drain valve actuator and a dialysis fluid contacting portion; a patient line extending from the drain valve; and a fluid loop including dialysis fluid contacting portions of the pump, the fresh dialysis fluid valve, the patient line valve and the drain valve, and wherein the patient line extends from the fluid loop.

A disposable set for a peritoneal dialysis (PD) treatment includes a fresh PD fluid pumping portion (118a): a used PD fluid pumping portion (118b): a reusable tubing section (124f) including the fresh PD fluid pumping portion (118a) and a one-way valve (132), the reusable tubing section terminating at a first connector; and a disposable tubing section (124u) including the used PD fluid pumping portion (118b) and terminating at a second connector, the second connector configured to be connected to the first connector to form the disposable set for use in the PD treatment.

Devices, systems, and methods can be used to deliver temperature-controlled medical fluids to patients. For example, this disclosure provides devices, systems, and methods for controlling the temperature of dialysate delivered to a patient during a peritoneal dialysis treatment.

A renal therapy machine includes a blood filter including a plurality of porous fibers; a blood circuit in communication with the blood filter; and a dialysate circuit in communication with the blood filter and operable with at least one pump, wherein the renal therapy machine is configured to perform a priming sequence in which a physiologically compatible solution, other than dialysate, primes the blood circuit and is flowed within the fibers and through pores in the fibers of the blood filter, and the pump of the dialysate circuit vents air from the blood filter into the dialysate circuit.

An automated peritoneal dialysis system provides various features including prescription-driven dialysis fluid preparation, an integrated disposable fluid circuit, and sensor capabilities that allow accurate filing and draining control with high safety margins. Features include a peritoneal fluid circuit with a pressure sensor at either end and methods and devices for using the pressure signals. Other features and embodiments are disclosed.

A mobile cart for a medical device is disclosed. The cart is designed to transport a medical device such as a dialysis machine (e.g., a peritoneal dialysis (PD) machine). The medical device can be connected to a power supply included in the cart, where the power supply includes one or more energy storage devices (e.g., batteries), a charging circuit, and (optionally) an inverter. The cart can also include a number of features such as automatic brakes, UV light sterilization, sensors such as object detection safety features, environmental sensors, and the like. The cart can include electronic components that enables certain functionality such as hosting a wireless local area network or communicating wirelessly with the medical device. A docking station is also disclosed that enables wireless charging of the power supply such that neither the medical device nor the cart needs to be plugged into an external power supply.

A peritoneal dialysis (PD) system includes a PD fluid pump, a PD fluid heater positioned and arranged to heat fresh PD fluid pumped by the PD fluid pump, and a phase change material (PCM) device positioned and arranged to receive fresh PD fluid heated by the PD fluid heater. The PCM device includes a PCM having a melting temperature selected so that the PCM solidifies when underheated fresh PD fluid contacts the PCM transferring heat to the underheated fresh PD fluid. Alternatively or additionally, the PD system may include a different PCM device having a PCM with a melting temperature selected so that the PCM melts when overheated fresh PD fluid contacts the PCM thereby removing heat from the overheated fresh PD fluid. A configuration for the PCM device is also disclosed.

A peritoneal dialysis (PD) system (10) includes a PD machine (20); a patient line (50) extending from the PD machine (20); and a filter set (100) in fluid communication with the patient line (50), the filter set (100) including a filter membrane (120, e.g., a sterilizing grade filter membrane or a bacteria reduction filter membrane) positioned and arranged such that fresh PD fluid flows through the filter membrane (120) into a filtered fluid compartment (106f), wherein the filtered fluid compartment (106f) includes an outlet (1060) to a port (106p), and wherein the port (106p) is in fluid communication with a circumferential used PD fluid channel (106c) positioned and arranged to carry used PD fluid around the filter membrane (120) without contacting the filter membrane (120). A method for priming filter set (100) is also disclosed.

A dialysis system includes a dialysis instrument including a blood pump actuator, a dialyzer, a heparin pump, and a disposable cassette including a blood pumping portion operable with the blood pump actuator of the dialysis instrument, the blood pumping portion including an inlet and an outlet, the inlet of the blood pumping portion of the disposable cassette positioned and arranged to receive blood from an arterial line of an extracorporeal circuit, the outlet of the blood pumping portion of the disposable cassette positioned and arranged to deliver the blood to the dialyzer and to receive heparin from the heparin pump.

An occluder, and methods for occlusion, that employs first and second opposed occluding members associated with each other, a tube contacting member connected to, or comprising at least a portion of, at least one of the first and second occluding members, and a force actuator constructed and positioned to apply a force to at least one of the first and second occluding members. The application of the force by the force actuator may cause the tube contacting member to move between a tube occluding position and an open position. A release member may be configured and positioned to enable an operator to manually move the tube contacting member from the tube occluding position to the open position even with no force applied to the at least one of the first and second occluding members by the force actuator. In one embodiment, the force actuator may apply the force sufficient to bend both the first and second occluding members, so that upon the application of the force by the force actuator (such as an air bladder), the first and second occluding members (e.g., spring plates pivotally connected at opposite ends) bend and the tube contacting member may move between the tube occluding position and the open position.