Fresenius Medical Care Deutschland Gmbh

Andreas Wüpper

Pascal Kopperschmidt

Alexander Heide

Ulrich Moissl

Alfred Gagel

Andreas Maierhofer

Wolfgang Wehmeyer

John Heppe

Volker Nier

Malte Gross

Jürgen Klewinghaus

Alexander Schrörs

Wolfgang Kleinekofort

Simone Lippert

Christoph König

Michael-Paul Jestram

Axel Kort

Andrea Krämer

The invention relates to a method and to a device for determining an optimum dialysate flow Qfor an extracorporeal blood treatment and to a blood treatment device comprising a device 18 for determining an optimum dialysate flow Qd. The optimum dialysate flow Qdis determined on the basis of a relationship describing the dependence of the clearance K on the dialysate flow Q. The device according to the invention comprises a measurement deviceB for measuring at least one value which is characteristic of the clearance K, a calculation and/or evaluation unitA of the device according to the invention being configured in such a way that the clearance K is determined on the basis of the at least one value which is characteristic of the clearance. The calculation and/or evaluation unitA is configured in such a way that the optimum dialysate flow Qis determined from the relationship describing the dependence of the clearance K on the dialysate rate Qon the basis of the measured clearance K, or the optimum dialysate flow Qis determined from the measured clearance K.

Device and method for determining an optimum dialysate flow for an extracorporeal blood treatment with an extracorporeal blood treatment device

The present invention relates to a tube covering for a tubing system, especially for monitoring a vascular access for an extracorporeal blood treatment. The inventive tube covering has at least one flexible bottom layer on which a section of the at least one tubing and/or a connection system of at least one tubing may be placed and has at least one flexible top layer for covering the section of the at least one tubing and/or the connection system of the at least one tubing. The bottom layer and the top layer are joined to one another such that they form an openable wrapping for inserting the section of the at least one tubing and/or the connection system of the at least one tubing, fastening means for detachably joining the top layer and the bottom layer being provided on the top layer and bottom layer.

Sterile tube covering for a medical tubing system

The present invention relates to a device and to a method for determining the dialysis fluid flow rate for an extracorporeal blood treatment device. The dialysis fluid flow rate Qis determined in accordance with the blood flow rate Qor the blood flow rate Qis determined in accordance with the dialysis fluid flow rate Q, wherein by increasing about a specific value, the increase of a variable characterising the efficiency of the blood treatment, in particular clearance K, does not exceed the specific value. The present invention also relates to a blood treatment device comprising a device for determining the dialysis fluid flow rate or blood flow rate and to a method for operating an extracorporeal blood treatment device. As a result, an optimal dialysis fluid flow rate and/or blood flow rate calculates the requirement in accordance with a high efficiency of the dialysis treatment and in accordance with a reduced consumption of the dialysis liquid.

Device and method for determining a dialysis fluid flow rate for extracorporeal blood treatment

The present invention relates to a device and a method for monitoring a patient access, in particular a vascular access in extracorporeal blood treatment, in which a patient's blood is withdrawn from the patient via an arterial conduit and is returned to the patient via a venous conduit. The blood is conveyed by a blood pump, preferably an occlusive blood pump, such as a roller pump. To monitor the vascular access, the electrical AC voltage and/or the alternating current and/or a derived electrical measured variable that is generated by electrostatic charges during operation of the occlusive peristaltic pump is monitored. If the triboelectric AC voltage generated by the blood pump and/or the alternating current and/or the derived electrical measured variable lies within predetermined limits, this indicates that the vascular access is faulty.

Device and method for monitoring a patient access, in particular a vascular access in extracorporeal blood treatment

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Büttelborn, Germany

Andreas Wüpper