Abstract: The invention relates to an apparatus for clamping a hose line, comprising a clamping body 19, an electromagnetic actuation unit 20 for the clamping body and a monitoring device 23 which monitors the position of the clamping body, the actuation unit 20 comprising a coil 21 for generating a magnetic field. The invention also relates to a medical treatment apparatus, in particular an apparatus for extracorporeal blood treatment, comprising an apparatus 14 for clamping a hose line, and to a method for monitoring an apparatus for clamping a hose line. The monitoring device 23 has a measurement device 24 for measuring an electrical property of the coil 21 that is dependent on the position of the clamping body 19, and an evaluation device 25 for determining the position of the clamping body 19 on the basis of the electrical property of the coil. Given that only one electrical property of the coil 21 is monitored, an additional mechanical component is not required for monitoring.

Abstract: The invention relates to an apparatus for clamping a hose line, comprising a clamping body 19, an electromagnetic actuation unit 20 for the clamping body and a monitoring device 23 which monitors the position of the clamping body, the actuation unit 20 comprising a coil 21 for generating a magnetic field. The invention also relates to a medical treatment apparatus, in particular an apparatus for extracorporeal blood treatment, comprising an apparatus 14 for clamping a hose line, and to a method for monitoring an apparatus for clamping a hose line. The monitoring device 23 has a measurement device 24 for measuring an electrical property of the coil 21 that is dependent on the position of the clamping body 19, and an evaluation device 25 for determining the position of the clamping body 19 on the basis of the electrical property of the coil. Given that only one electrical property of the coil 21 is monitored, an additional mechanical component is not required for monitoring.

Abstract: The present invention relates to a device for creating a vascular access for extracorporeal blood treatment including an electrically conductive puncture needle with a proximal endpiece, a distal endpiece, and a base body made of electrically non-conductive material into which the distal endpiece is inserted. In a properly arranged vascular access, the base body, including an electrically conductive contact element, lies on the skin of the patient, when the puncture needle is located within the vessel of the patient. A disconnection or dislocation is detected by the impedance between the electrically conductive puncture needle and the electrically conductive contact element being measured and compared to a limit value. If the impedance measured is within predetermined limits, this indicates a properly arranged vascular access. A disconnection or dislocation of the puncture needle leads to a strong variation in the impedance.

Abstract: A method for determining and/or monitoring quantities, in particular cardiovascular quantities, relating to a patient's condition, and an apparatus for measuring an amplitude of a cardiac pressure signal are disclosed. The amplitude of the pressure signal may be detected with the aid of a pressure sensor of a blood treatment apparatus, and its magnitude may be corrected by the contribution of the blood pump of the blood treatment apparatus so as to determine the amplitude of the cardiac pressure signal of the patient. The value of the amplitude of the pressure signal thus determined may subsequently be evaluated.

Abstract: The present invention relates to a device for creating a vascular access for extracorporeal blood treatment using an extracorporeal blood treatment device, wherein the device for creating the vascular access has an electrically conductive puncture needle with a proximal endpiece and distal endpiece, and a base body that is made of electrically non-conductive material and into which the distal endpiece of the puncture needle is inserted. In the case of a properly arranged vascular access, the base body, which includes an electrically conductive contact element, lies on the skin of the patient, when the puncture needle is located within the vessel of the patient. A disconnection or dislocation is detected by the impedance between the electrically conductive puncture needle and the electrically conductive contact element being measured and compared to a limit value. If the impedance measured is within predetermined limits, this indicates a properly arranged vascular access.