Abstract: A method for emptying a blood tubing set of a blood treatment device that includes an extracorporeal blood circuit with a membrane filter includes supplying air or gas to the blood tubing set to displace liquid therein. The blood tubing set includes arterial and venous patient blood tubes in communication with a first chamber of the membrane filter. The device also includes a substituate line which opens into the arterial blood tube and/or into the venous blood tube, and a substituate pump. To empty the blood tubing set, the arterial blood tube and the venous blood tube are connected to one another to provide a circuit that includes the membrane filter, the arterial blood tube, and the venous blood tube. The substituate line is disconnected, and the air or gas is pumped into the blood tubing set so as to displace liquid into a second chamber of the membrane filter.

Abstract: The present invention relates to a device and a method for blood treatment in a single-needle operating mode. The blood treatment device has an extracorporeal blood circuit comprising a blood supply line leading to the inlet of a blood treatment unit and a blood return line leading away from the outlet of the blood treatment unit. Blood collecting means, for example a blood collecting container, is provided in the blood return line, said means being connected to means for storing gas, for example an air reservoir, by a flow line. The flow connection comprises two line branches, one branch being used to transfer gas from the air reservoir into the blood collecting container and the other branch being used to transfer gas from the blood collecting container into the air reservoir. The connection branch for transferring gas from the air store into the blood collecting container contains means for compressing air, for example a compressor.

Abstract: Disclosed is a sealing device for sealing at least one first volume of an arrangement for the treatment of at least one medical fluid against at least one second volume, wherein the first volume is provided for receiving at least one external functional device. The sealing device includes at least one first connection device whereby the sealing device may be connected to the arrangement. In addition an arrangement and a method are disclosed.

Abstract: A method for removing blood from an extracorporeal blood circuit of a treatment apparatus for the extracorporeal blood treatment of a patient following termination of a blood treatment session, wherein the treatment apparatus includes at least one extracorporeal blood circuithaving a conduit interior; at least one blood pump for conveying blood inside the conduit interior of the extracorporeal blood circuit; and at least one substitute pumpfor introducing or conveying at least one substituate fluid inside the conduit interior of the extracorporeal blood circuit. The method comprises feeding of air into the conduit interior of the extracorporeal blood circuitby operating the blood pump, and introducing substituate fluid into the conduit interior of the extracorporeal blood circuitby operating the substitute pump. In addition, a suitable apparatus is described.

Abstract: An apparatus for treating a medical liquid is provided which includes a treatment machine having a coupling surface, with a cassette made of a hard part having liquid-conducting passages which are covered by a flexible film being able to be coupled to the coupling surface of the treatment machine. A corresponding medical cassette is also provided. An air-free coupling of the flexible film of the cassette to the treatment machine is ensured in that air can be sucked out areally along a plane between the flexible film and the coupling surface during the coupling process and/or with a coupled cassette. A method for coupling the cassette and a method for checking the leaktightness of the cassette via the vacuum control of the air suction is also provided.

Abstract: The present invention relates to a reception means for receiving fluids, which comprises a fluid surge redirection element comprising at least one flow-conditioning body that is adapted and intended to divide the fluid surge of the inflowing fluid into at least two partial fluid surges. It further relates to an external functional means as well as a treatment apparatus comprising a reception means in accordance with the invention.

Abstract: The present invention relates to a method of removing blood from an extracorporeal blood circuit following termination of a blood treatment session, wherein blood is concurrently removed both from an arterial conduit portion and from a venous conduit portion of the extracorporeal blood circuit. It further relates to a method for recognizing and/or eliminating air inclusions in or from an extracorporeal blood circuit and a treatment apparatus as well as a tube system.

Abstract: An external functional means comprises at least one housing body, at least one chamber integrated into the housing body for receiving medical fluids, at least one passage integrated into the housing body for receiving and/or conducting a medical fluid, and at least one valve means completely or partly integrated into the housing body for controlling or regulating a fluid flowing through the external functional means. The invention further specifies a blood treatment apparatus and methods which may be carried out by means of the external functional means of the invention and by means of the blood treatment apparatus, respectively.

Abstract: The present invention relates to an apparatus for treating a medical liquid which includes a treatment machine having a coupling surface, with a cassette made of a hard part having liquid-conducting passages which are covered by a flexible film being able to be coupled to the coupling surface of the treatment machine. The invention furthermore relates to a corresponding medical cassette. In accordance with the invention, an air-free coupling of the flexible film of the cassette to the treatment machine is ensured in that air can be sucked out areally along a plane between the flexible film and the coupling surface during the coupling process and/or with a coupled cassette. The invention equally includes a method for coupling the cassette and a method for checking the leaktightness of the cassette via the vacuum control of the air suction.

Abstract: The present invention relates to a device for controlling a system for transporting blood, and a method for transporting blood in a blood line of an extracorporeal blood circuit of an extracorporeal blood treatment system. The present invention also relates to an extracorporeal blood treatment device comprising such a system for transporting blood. The method and device according to the present invention are based on the fact that a defined threshold value for the pressure in the blood line should not be exceeded. The system for transporting blood is controlled in such a way the blood in the blood line is transported in a pre-determined volume flow as long as the pressure in the blood line is below the pre-determined threshold value. When the pressure in the blood line reaches the pre-defined threshold value, however, the system for transporting blood is controlled such that a pressure value corresponding to the threshold value is set when the blood is transported in the blood line.

Abstract: The invention relates to a method for the emptying of a blood tubing set of a blood treatment device comprising an extracorporeal blood circuit including a membrane filter having a first chamber and a second chamber separated therefrom by a membrane, said first chamber being flowed through by blood in operation of the blood treatment device and said second chamber being flowed through by filtrate in operation of the blood treatment device, and said blood tubing set including an arterial blood tube and a venous blood tube which are both in communication with the first chamber of the membrane filter and which conduct blood from the patient to the membrane filter and from the membrane filter to the patient in operation of the blood treatment device, and comprising a substituate line which opens into the arterial blood tube and/or into the venous blood tube, and comprising a substituate pump which is in communication with the substituate line such that it conveys substituate from a substituate source through the