An article configured to warm and monitor a patient during a dialysis treatment, the article includes one or more heating elements. The article also includes one or more sensors configured to monitor a condition of the patient during the dialysis treatment. The article also includes a fabric portion configured to receive the one or more heating elements and the one or more sensors and position the one or more heating elements and the one or more sensors on the patient during treatment. The article also includes a transmitter configured to transmit information from the one or more sensors to a dialysis machine and an electrical connector configured to provide power to at least one of the one or more heating elements and the one or more sensors.

The invention relates to a method and to a device for supplying a dialysis device with dialysate, and to a dialysis device comprising a device for supplying the dialysis device with dialysate. For producing dialysate, a container 13 filled with a pulverulent dialysate concentrate K is provided, the amount of dialysate concentrate in the container being set in such a way that an amount of dialysate sufficient for a specified number of dialysis treatments can be produced using the dialysate concentrate. The method according to the invention and the device according to the invention make it possible to align the amount K2 of concentrate in the container 13 and the planned consumption amount, which is dependent on the prescription from the doctor and the treatment parameters established by the machine. After the individual dialysis treatments have been carried out, it is continuously monitored whether the amount of concentrate is sufficient. It may be monitored whether the amount of concentrate is sufficient for the following treatment or for all treatments still to be carried out. If it is not sufficient, an alarm signal is generated. Otherwise, a control signal for initiating each of the next treatment cycles is generated.

A device for extracorporeal blood treatment comprising at least a first concentrate connection which is set up to feed at least a first concentrate into the device for extracorporeal blood treatment as the basis for generating a dialysate; at least a second concentrate connection which is configured to feed at least a second concentrate into the device for extracorporeal blood treatment as the basis for generating a dialysate; wherein the device for extracorporeal blood treatment is configured to switch over from supplying the at least first concentrate to supplying the at least second concentrate at a predetermined time or after a predetermined period of time during an ongoing blood treatment.

A peritoneal dialysis system includes a chamber; a hydraulic pump; an inflatable bladder located within the chamber and in hydraulic fluid communication with the hydraulic pump; and a control unit configured to cause known amounts of hydraulic fluid to be metered to and from the inflatable bladder and to determine (i) a first amount of air before a discharge stroke via a first ideal gas law calculation, (ii) a second amount of air after the discharge stroke via a second ideal gas law calculation, and (iii) a discharge volume of fresh or used dialysis fluid for the discharge stroke by subtracting a difference between the first and second amounts of air from a known amount of hydraulic fluid metered to the inflatable bladder for the discharge stroke.

The present invention relates to devices, systems, and methods for controlling the concentration of potassium in dialysate in a closed loop potassium control system. The devices, systems, and methods can be compatible with any dialysis system including sorbent-based dialysis systems, single pass dialysis systems, or other multi-pass dialysis systems. The systems can use closed loop potassium control over potassium concentration in the dialysate to reduce the probability of patient arrhythmias. The potassium concentration can be controlled and personalized to a patient using certain predetermined patient parameters. Related systems, algorithms, and control systems are contemplated for optimizing the potassium concentration in the dialysate.

An air purging method includes: (a) detecting a low fluid level in a blood circuit indicating a high amount of air in the blood circuit; (b) stopping a blood pump; (c) closing a venous patient line; (d) opening a blood circuit air vent valve and a drain valve; and (e) running the blood pump to meter air through the air vent valve and the drain valve to a drain.

A processor of a medical device configured to communicate with a remote server can be programmed to protect the medical device from exposure to unauthorized or malicious software. A system or method to implement this form of protection can include, for example, at least one processor on the medical device, a control software module that controls the operation of the medical device and is executable on the processor, a data management module that manages data flow to and from the control software module from sources external to the medical device, and an agent module that has access to a limited number of designated memory locations in the medical device. In addition, a hemodialysis apparatus can be configured to operate in conjunction with an apparatus for providing purified water from a source such as a municipal water supply or a well. A system for controlling delivery of purified water to the hemodialysis apparatus can comprise a therapy controller of the hemodialysis apparatus configured to communicate with a controller of a water purification device, and a user interface controller of the hemodialysis apparatus configured to communicate with the therapy controller, and to send data to and receive data from a user interface.

A method of draining a device for extracorporeal blood treatment, wherein the device comprises a dialyzer which is divided by means of a membrane into a first chamber and a second chamber, an arterial line connected to a blood inlet of the first chamber, a venous line connected to a blood outlet of the first chamber, a dialysis fluid line for fresh dialysis fluid connected to a dialysis fluid inlet of the second chamber and a dialysis fluid line for used dialysis fluid connected to a dialysis fluid outlet of the second chamber, a blood pump disposed in the arterial line, a venous expansion chamber disposed in the venous line and an air detector unit downstream of the venous expansion chamber, and wherein the method comprises the following steps of: connecting a patient-side port of the arterial line to a patient-side port of the venous line; generating a negative pressure in the second chamber; operating the blood pump in a first direction and draining the arterial and venous lines in the first direction via the membrane and the second chamber; and stopping the blood pump and draining the arterial and venous lines in a second direction opposed to the first direction via the membrane and the second chamber.

Embodiments include a consumable medical device comprises a rigid cartridge to which a film is adhered to form a fluid channel and a damper chamber. A portion of the film forming the damper chamber has a wave-like shape adapted to roll onto a tip of a damper. The damper has a plunger to minimize peristaltic pressure in the channel The cartridge may include conductivity measurement channels. Crosstalk may be minimized by using different frequencies or time division for reading the channels. A stable dialysate concentrate containing sodium lactate may be used or generated with the system. The concentrate may be formed to higher concentration than feasible with a single component concentrate by forming two containers of concentrate, each containing a fraction of a total quantity of sodium lactate required for a predefined number of dialysis

This invention relates to dialysis systems and methods. In some implementations, a method includes applying vacuum pressure to a device of a dialysis system, and then determining, based on a detected fluid level or measured pressure, whether the device is functioning properly.