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: An electromagnetic flowmeter for measuring a flow of liquid in a liquid-carrying line has a magnet for producing a magnetic field in the liquid-carrying line, and an electrode pair for discharging an electrical voltage when the liquid flows through the liquid-carrying line. The flowmeter enables the flow of liquid to be determined on the basis of the measured voltage. The magnet can rotate about an axis in order to produce an alternating magnetic field.

Abstract: A balancing method and a balancing device (100, 101, 200, 201, 301, 303) for determining a fluid balance between a flow quantity in a first flow path (FW1) and a flow quantity in a second flow path (FW2) are disclosed. The disclosed balancing device (100, 101, 200, 201, 301, 303) comprises the following elements: a differential flow measuring unit (D) for measuring the differential flow between a flow in the first flow path (FW1) and a flow in the second flow path (FW2), a branch from one of the two flow paths (FW1, FW2) for diverting fluid from one of the two flow paths into the other flow path (W), a device for setting the flow quantity (P11, P12) in the additional flow path, which can be controlled in such a way that the measured differential flow fulfills a predetermined condition, and with a device (K) for determining the flow quantity in the additional flow path as a measure of the fluid balance.

Abstract: A cassette module (19, 29, 319, 419, 59, 69) for a differential flowmeter is disclosed, wherein the cassette module (19, 29, 319, 419, 59, 69) forms a first fluid-carrying channel (16, 216, 316, 611, 615) and the second fluid-carrying channel (17, 217, 317, 610, 616) during operation of the differential flowmeter. The cassette module is specific in the regard that a geometric deformation of the channels due to a temperature difference between the channels (16, 216, 316, 611, 615, 17, 217, 317, 610, 616) is minimized or prevented. In addition a differential flowmeter containing the cassette module (19, 29, 319, 419, 59, 69) disclosed here is also described.

Abstract: The present invention relates to a medical treatment arrangement having at least three device parts, with the first device part being a device part which is not made for the treatment of a patient, with the second device part being made in conjunction with the third device part such that a treatment of a patient can be made with them, with the second device part being made movable relative to the first device part and relative to the third device part, and with provision furthermore being made that the first device part and the second device part and/or the second device part and the third device part being made such that energy and/or data can be unidirectionally or bidirectionally exchanged between them.

Abstract: The invention relates to the balancing of fluid streams in a dialysis system. In particular the invention relates to a cassette for conveying a first and a second fluid stream in a dialysis system, wherein the first and the second fluid streams can be medical fluid streams such as for example dialysate streams or blood streams, wherein the cassette has a sensor as a device for balancing the first and the second fluid stream, and wherein the sensor has a first channel for the first fluid stream and a second channel for the second fluid stream. The invention further relates to a dialysis system, which is configured to accommodate at least one cassette which is configured as described above. Furthermore, the present invention relates to an arrangement by which two channels for the first and the second fluid streams are formed. In addition, the invention relates to a method for construction of the two channels or the arrangement.

Abstract: What is disclosed is an electromagnetic flowmeter for measuring a flow of liquid in a liquid-carrying line (107) having a magnet (104) for producing a magnetic field (111, 112, 113, 114) in the liquid-carrying line (107) and an electrode pair (103) for discharging an electrical voltage when the liquid flows through the liquid-carrying line (107). The flowmeter according to the disclosure allows the flow of liquid to be determined on the basis of the measured voltage. The magnet (104) can rotate about an axis in order to produce an alternating magnetic field.

Abstract: The invention relates to the balancing of fluid streams in a dialysis system. In particular the invention relates to a cassette for conveying a first and a second fluid stream in a dialysis system, wherein the first and the second fluid streams can be medical fluid streams such as for example dialysate streams or blood streams, wherein the cassette has a sensor as a device for balancing the first and the second fluid stream, and wherein the sensor has a first channel for the first fluid stream and a second channel for the second fluid stream. The invention further relates to a dialysis system, which is configured to accommodate at least one cassette which is configured as described above. Furthermore, the present invention relates to an arrangement by which two channels for the first and the second fluid streams are formed. In addition, the invention relates to a method for construction of the two channels or the arrangement.

Abstract: A method and a device are disclosed for controlling or regulating an ultrafiltration in a dialysis treatment in which blood to be ultrafiltered flows in an extracorporeal blood circulation (109) through a blood chamber (110) of a dialyzer (113), which is divided by a semipermeable membrane (111) into the blood chamber (110) and a dialysis fluid chamber (108), and dialysis fluid in a dialysis fluid circulation (109) flows through the dialysis fluid chamber (108) of the dialyzer (113). The device has a blood pump (115) for creating a blood flow in the extracorporeal blood circulation (112), a dialysis fluid pump (107) for creating a dialysis fluid flow in the dialysis fluid circulation (109), a balancing device (104) for setting up a fluid balance in the dialysis fluid circulation between an inflow (106) and an outflow (105) of the dialysis fluid chamber (113) as a measure of the ultrafiltration, and a regulating unit (101) for regulating the blood pump (115) and/or the dialysis fluid pump (107).

Abstract: A method and a device are disclosed for regulating an ultrafiltration in a dialysis treatment, in which the blood to be ultrafiltered in an extracorporeal blood circulation (109) flows through a blood chamber (110) of a dialyzer (113), which is subdivided by a semipermeable membrane (111) into a blood chamber (110) and a dialysis fluid chamber (108), and dialysis fluid in a dialysis fluid circulation (109) flows through the dialysis fluid chamber (108) of the dialyzer (113),.

Abstract: The invention relates to the balancing of fluid streams in a dialysis system. In particular the invention relates to a cassette for conveying a first and a second fluid stream in a dialysis system, wherein the first and the second fluid streams can be medical fluid streams such as for example dialysate streams or blood streams, wherein the cassette has a sensor as a device for balancing the first and the second fluid stream, and wherein the sensor has a first channel for the first fluid stream and a second channel for the second fluid stream. The invention further relates to a dialysis system, which is configured to accommodate at least one cassette which is configured as described above. Furthermore, the present invention relates to an arrangement by which two channels for the first and the second fluid streams are formed. In addition, the invention relates to a method for construction of the two channels or the arrangement.

Abstract: The present invention relates to a medical treatment arrangement having at least three device parts, with the first device part being a device part which is not made for the treatment of a patient, with the second device part being made in conjunction with the third device part such that a treatment of a patient can be made with them, with the second device part being made movable relative to the first device part and relative to the third device part, and with provision furthermore being made that the first device part and the second device part and/or the second device part and the third device part being made such that energy and/or data can be unidirectionally or bidirectionally exchanged between them.

Abstract: The present invention relates to a method for removing gas accumulations from a component of an extracorporeal blood circuit, a control device for executing a method according to the present invention, a medical treatment apparatus which comprises at least one control device and/or stands in signal transmission or is connected for signal transmission with it, a digital storage medium, a computer program product as well as a computer program.

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: This invention relates to the field of signal transit time sensors, in particular sensors based on ultrasonic transit times. Existing electronic control circuits for such transit time sensors for measurements on medical liquids, in particular blood, are extremely complex or their time resolution is limited. However, the present invention makes use of a simple measurement technique which cannot be used directly at first for the time resolution to be achieved. In this method, an ordinary sampling method is used to detect the received signal (12). An oscillator-like received signal (12) generated by an emitted step-like signal is first sampled during a half-period (14, 15) and is checked with the help of a selection criterion.

Abstract: The invention relates to a system of a plurality of medical treatment units that are respectively associated with a patient, and a plurality of peripheral appliances also respectively associated with a patient. The peripheral appliances transmit control signals and patient signals to the treatment units, while the treatment units receive the control signals and patient signals from the peripheral appliances. The present invention ensures that the treatment units do not receive patient signals from other peripheral appliances that are not associated with the particular patient. The operating staff allocate a peripheral appliance to a patient and confirm the successful association of the peripheral appliance with the treatment unit allocated to the patient.

Abstract: This invention relates to the field of signal transit time sensors, in particular sensors based on ultrasonic transit times. Existing electronic control circuits for such transit time sensors for measurements on medical liquids, in particular blood, are extremely complex or their time resolution is limited. However, the present invention makes use of a simple measurement technique which cannot be used directly at first for the time resolution to be achieved. In this method, an ordinary sampling method is used to detect the received signal (12). An oscillator-like received signal (12) generated by an emitted step-like signal is first sampled during a half-period (14, 15) and is checked with the help of a selection criterion.