Systems and methods for controlling fluid movement and volumes of fluid between a subject and a controlled compliant flow path. The controlled compliant flow path has a means for selectively metering in and metering out fluid from the controlled compliant flow path. An extracorporeal flow path is in fluid communication with the controlled compliant flow path across a semi-permeable membrane where the extracorporeal flow path has a first terminal end and a second terminal end.

The present invention relates to a dialyzer holder to attach a dialyzer to a dialysis machine. During priming of a bloodline prior to a dialysis treatment, the dialyzer holder grips a dialyzer in approximately the center of the dialyzer, but allows movements of the dialyzer in an arc motion using two axes of rotation. The holder enables the dialyzer to move to a position where air can be primed from the dialyzer and, because the dialyzer can move toward the dialysis machine, this motion eliminates stress on the tubing connected to the bottom and top of the dialyzer and reduces the length of bloodline tubing necessary to accommodate dialyzer movement. The dialyzer holder incorporates an attachment point for a venous chamber for use during the priming procedure, enabling the venous chamber to move with the dialyzer, further reducing the tubing between the dialyzer and the venous chamber.

The present teachings include techniques for securing a connection to a dialyzer or the likee.g., securing the junction between a dialyzer port and a connector (e.g., a DIN connector) that couples the port to tubing of an extracorporeal circuit of a hemodialysis system. To this end, a locking device may engage both a DIN connector and a portion of the dialyzer, such as the cap or an adapter engaged therewith. The locking device may include an interior void sized and shaped to accommodate winged portions (or other portions) of the DIN connector to mitigate rotation thereof relative to the port to which it is engaged. Further, the locking device may be used to ensure that coupling between the DIN connector and the port is proper and secure. In this manner, a locking device can mitigate leaks, which can be catastrophic during a hemodialysis treatment or the like.

Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.

A blood circuit assembly for a dialysis unit may include an organizing tray, a pair of pneumatic pumps mounted to the organizing tray for circulating blood received from a patient through a circuit including a dialyzer unit and returned to the patient, an air trap mounted to the organizing tray arranged to remove air from blood circulating in the circuit, a pair of dialyzer connections arranged to connect to the inlet and outlet of a dialyzer unit, and a pair of blood line connectors, one inlet blood line connector for receiving blood from the patient and providing blood to the pneumatic pumps and the other outlet blood line connector for returning blood to the patient.

A method of operating an extracorporeal blood treatment includes, prior to commencing an extracorporeal blood treatment, reading from a storage device (4a, 5a) stored values of a patient-specific prescription parameter. These stored values relate to a sequence of previous extracorporeal blood treatments. In addition, the method includes processing the stored values of the parameter read from the storage device (4a, 5a) according to a predetermined algorithm to determine a current value of the patient-specific prescription parameter. The current value is then available for the subsequent extracorporeal blood treatment.

This extracorporeal circulation cassette is provided with: a blood circuit (10) comprising a flexible tube and having a blood tube access portion set in a predetermined position in a device; a dialysate circuit (12) comprising a flexible tube and having a dialysate tube access portion set in a predetermined position in the device; a first panel (4) and a second panel (6) that are rigid and that integrate the blood circuit (10) and the dialysate circuit (12) while sandwiching the blood circuit (10) and the dialysate circuit (12) from both sides; and a window portion formed in a part of at least one of the first panel (4) and the second panel (6), disposed in a predetermined position in the device. The blood tube access portion and the dialysate tube access portion are positioned in the window portion.

The present invention relates to a dialyzer holder to attach a dialyzer to a dialysis machine. During priming of a bloodline prior to a dialysis treatment, the dialyzer holder grips a dialyzer in approximately the center of the dialyzer, but allows movements of the dialyzer in an arc motion using two axes of rotation. The holder enables the dialyzer to move to a position where air can be primed from the dialyzer and, because the dialyzer can move toward the dialysis machine, this motion eliminates stress on the tubing connected to the bottom and top of the dialyzer and reduces the length of bloodline tubing necessary to accommodate dialyzer movement. The dialyzer holder incorporates an attachment point for a venous chamber for use during the priming procedure, enabling the venous chamber to move with the dialyzer, further reducing the tubing between the dialyzer and the venous chamber.

A medical apparatus, such as a dialysis machine (e.g. a hemodialysis machine or a peritoneal dialysis machine), includes a plurality of components, one or more sensors corresponding to the components and configured to detect signals, a display and a control unit. The control unit is configured to: receive signals from the one or more sensors, determine, from the signals, a status of the medical apparatus, and determine control commands for the display based on the determined status for status-dependent control of the display. The described apparatus improves the human-machine interface in terms of set-up time, operating time and freedom from errors. Depending upon the determined status, different status-specific menus may be illustrated on the display in order to assist the user when operating the apparatus or advise the user about any errors or subsequent steps.

The present invention relates to a dialyzer holder to attach a dialyzer to a dialysis machine. During priming of a bloodline prior to a dialysis treatment, the dialyzer holder grips a dialyzer in approximately the center of the dialyzer, but allows movements of the dialyzer in an arc motion using two axes of rotation. The holder enables the dialyzer to move to a position where air can be primed from the dialyzer and, because the dialyzer can move toward the dialysis machine, this motion eliminates stress on the tubing connected to the bottom and top of the dialyzer and reduces the length of bloodline tubing necessary to accommodate dialyzer movement. The dialyzer holder incorporates an attachment point for a venous chamber for use during the priming procedure, enabling the venous chamber to move with the dialyzer, further reducing the tubing between the dialyzer and the venous chamber.