Abstract: A dialysis device for performing a dialysis treatment can include a liquid conducting system, which comprises a first section and a second section. A differential pressure sensor can be included for measuring a differential pressure pdiffm between a first pressure (p1) in the first section of the liquid conducting system and a second pressure (p2) in the second section of the liquid conducting system. A monitoring unit is also provided, which is configured to determine an operating status based on the measured differential pressure pdiffm. A control device is also provided, which is configured to interrupt and/or block the dialysis treatment according to the determined operating status. A display device is also provided, which is configured to output a notification based on the determined operating status.

Abstract: A method and a device for monitoring an extracorporeal blood flow during an extracorporeal blood treatment with an extracorporeal blood treatment device. The extracorporeal blood treatment device may include the device for monitoring an extracorporeal blood flow. The arterial and/or venous patient access is monitored with a first and a second method, each of which there is a check for a presence of at least one criterion that is characteristic of a condition of the vascular access that is not in proper order, the criteria for the first and second methods being distinguished from one another. A blood pump, which is preferably an occlusion blood pump, is stopped once the presence of the at least one criterion of the first method has been established, while a venous cut-off unit remains open. Once the blood pump has been stopped, the presence of the at least one criterion is checked with the second method. The venous cut-off unit is not closed until the at least one criterion for the second method is present.

Abstract: A method and a device for monitoring an extracorporeal blood flow during an extracorporeal blood treatment with an extracorporeal blood treatment device. The extracorporeal blood treatment device may include the device for monitoring an extracorporeal blood flow. The arterial and/or venous patient access is monitored with a first and a second method, each of which there is a check for a presence of at least one criterion that is characteristic of a condition of the vascular access that is not in proper order, the criteria for the first and second methods being distinguished from one another. A blood pump, which is preferably an occlusion blood pump, is stopped once the presence of the at least one criterion of the first method has been established, while a venous cut-off unit remains open. Once the blood pump has been stopped, the presence of the at least one criterion is checked with the second method. The venous cut-off unit is not closed until the at least one criterion for the second method is present.

Abstract: This invention relates to a method for checking the correct coupling of an adding device to a therapeutic appliance, which includes an extracorporeal circuit with which the adding device is connected such that a drug can be introduced into the extracorporeal circuit by means of the adding device during operation of the therapeutic appliance, wherein the adding device is coupled to the extracorporeal circuit on the suction side of a pump disposed in the extracorporeal circuit, wherein a portion in the region of negative pressure of the extracorporeal circuit in connection with a portion of the adding device is closed with respect to the other parts of the extracorporeal circuit, and wherein the pressure in this closed portion is varied and measured.

Abstract: The invention relates to a roller pump consisting of a stator with a pump bed formed therein and a rotor for acting on a hose inserted into the pump bed in arcuate form. In accordance with the invention, the ends of the tube guided out of the pump bed cross.