Patents by Inventor Christoph WIKTOR

Christoph WIKTOR has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11925736
    Abstract: Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: March 12, 2024
    Assignees: Fresenius Medical Care Deutschland GmbH, Fresenius Medical Care Holdings, Inc.
    Inventors: Massimo Earl Fini, Lynn E. Jensen, Alexander Heide, Dejan Nikolic, Arne Peters, Christoph Wiktor, Marina Wenke, Tommy Huang, Dacey John Ryan, Stefan Kreber, Lothar Leick, Dzhuney Terzi, Hendrik Therre, Manfred Weis, Alain Veneroni, Reinhold Reiter, Michele Marini, Davide Maria Benelli, Brad Yang, Jiunn Teo
  • Publication number: 20230395252
    Abstract: The present disclosure relates to a patient monitor system with at least one collecting device which is programmed to collect behavior-related data and/or vital parameters of a patient. The patient monitor system further includes an output device and a calculation unit. The calculation unit is programmed to prompt or trigger the collecting device in order to collect the data and vital parameters. It is further programmed to generate instructions for controlling or regulating a medical treatment apparatus, and for outputting the instructions by the output device. The calculation unit is hereby further programmed to generate instructions and/or to have them output by the output device when the behavior-related data of the patient, or part of this data, and/or the vital parameters of the patient, or part these vital parameters do not lie in a value range respectively predetermined for them and/or lie beyond a limit value respectively predetermined for them.
    Type: Application
    Filed: October 27, 2021
    Publication date: December 7, 2023
    Inventors: David Hannes, Martin Urban, Christoph Wiktor
  • Patent number: 11793914
    Abstract: A medical system, usable for example in connection with a dialysis apparatus, may utilize radar waves for monitoring a patient, a medical area, or an object. The medical system includes at least one sending device for sending radar waves, and at least one receiving device for receiving reflected radar waves. The medical system further includes an evaluation unit for evaluating the reflected radar waves which have been received by the at least one receiving device, resulting in obtaining a result, and an output device for outputting the result or a signal based on the result.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: October 24, 2023
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Christoph Wiktor, Andreas Röse, Benedict Glaser, Manuel Weikert, Gerome Fischer, Martin Urban, David Hannes, Pascal Kopperschmidt, Felix Wege
  • Patent number: 11730871
    Abstract: Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: August 22, 2023
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Alexander Heide, Dejan Nikolic, Arne Peters, Christoph Wiktor
  • Publication number: 20220378993
    Abstract: This disclosure relates to a method for determining a fluid balance between a first volume flow in a first section of a fluid circuit and a second volume flow of a second section of the fluid circuit. The method may also include adjusting, assuming or detecting a first temperature in the first section of the fluid circuit and a second temperature in the second section of the fluid circuit, or detecting a temperature difference between the first and the second sections. The method may also include detecting a second volume flow in a second section of the fluid circuit and forming a balance from at least the first volume flow and a corrected value of the second volume flow. The corrected value is determined from the detected second volume flow and the second temperature and/or the temperature difference.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    Inventors: Petra Abel, Alexander Heide, Dejan Nikolic, Arne Peters, Elke Schulte, Christoph Wiktor
  • Patent number: 11406745
    Abstract: This disclosure relates to a method for determining a fluid balance between a first volume flow in a first section of a fluid circuit and a second volume flow of a second section of the fluid circuit. The method may also include adjusting, assuming or detecting a first temperature in the first section of the fluid circuit and a second temperature in the second section of the fluid circuit, or detecting a temperature difference between the first and the second sections. The method may also include detecting a second volume flow in a second section of the fluid circuit and forming a balance from at least the first volume flow and a corrected value of the second volume flow. The corrected value is determined from the detected second volume flow and the second temperature and/or the temperature difference.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: August 9, 2022
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Petra Abel, Alexander Heide, Dejan Nikolic, Arne Peters, Elke Schulte, Christoph Wiktor
  • Patent number: 11300120
    Abstract: The invention relates to a positive displacement pump 1 for conveying medical fluids, which pump has a pumping chamber 5 and a positive displacement element 15, and to a blood treatment apparatus comprising a positive displacement pump 1. In addition, the invention relates to a method for controlling a positive displacement pump 1 for conveying medical fluids. The positive displacement pump 1 according to the invention has an actuation member 20 in operative connection with the positive displacement element 20 for displacing or deforming the positive displacement element in order to convey the fluid into the pumping chamber or out of the pumping chamber, and a drive device 21 for displacing the actuation member 20. A control unit 14 is provided for to controlling the drive device 21 and an inlet valve 12 and outlet valve 13. The actuation member 20 is in operative connection with the positive displacement element 15 via a working chamber 19 that is filled with gas and has a sealed volume.
    Type: Grant
    Filed: December 17, 2017
    Date of Patent: April 12, 2022
    Assignee: Fresenius Medical Care Duetschland GmbH
    Inventors: Arne Peters, Christoph Wiktor, Gokhan Orter
  • Patent number: 11246968
    Abstract: A dialysis machine, in particular for hemodialysis and/or hemofiltration, having a dialyzate system and having a water inlet via which the dialyzate system can be connected to an external water supply. The dialysis machine includes a constant flow regulator that is arranged between the water connection and the dialyzate system.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: February 15, 2022
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventor: Christoph Wiktor
  • Patent number: 11246969
    Abstract: A device for extracorporeal blood treatment and a method for operating an extracorporeal blood treatment device provide for an ultrafiltrate pump of an ultrafiltration apparatus to be operated in a first and second operating mode. The ultrafiltrate pump is operated in the first operating mode in such a way that the pressure on the blood-side of the semipermeable membrane is higher than the pressure on the dialysate-side of the semipermeable membrane of a dialyser, so that during the first operating mode a predetermined amount of fluid is removed from an extracorporeal blood circuit via the semipermeable membrane of the dialyser.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: February 15, 2022
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Christoph Wiktor, Arne Peters
  • Publication number: 20210369928
    Abstract: A medical system, usable for example in connection with a dialysis apparatus, may utilize radar waves for monitoring a patient, a medical area, or an object. The medical system includes at least one sending device for sending radar waves, and at least one receiving device for receiving reflected radar waves. The medical system further includes an evaluation unit for evaluating the reflected radar waves which have been received by the at least one receiving device, resulting in obtaining a result, and an output device for outputting the result or a signal based on the result.
    Type: Application
    Filed: March 8, 2021
    Publication date: December 2, 2021
    Inventors: Christoph Wiktor, Andreas Röse, Benedict Glaser, Manuel Weikert, Gerome Fischer, Martin Urban, David Hannes, Pascal Kopperschmidt, Felix Wege
  • Publication number: 20210138131
    Abstract: Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 13, 2021
    Inventors: Massimo Earl Fini, Lynn E. Jensen, Alexander Heide, Dejan Nikolic, Arne Peters, Christoph Wiktor, Marina Wenke, Tommy Huang, Dacey John Ryan, Stefan Kreber, Lothar Leick, Dzhuney Terzi, Hendrik Therre, Manfred Weis, Alain Veneroni, Reinhold Reiter, Michele Marini, Davide Benelli, Brad Yang, Jiunn Teo
  • Publication number: 20210138138
    Abstract: Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 13, 2021
    Inventors: Alexander Heide, Dejan Nikolic, Arne Peters, Christoph Wiktor
  • Patent number: 10973973
    Abstract: A device and method for monitoring an access to a patient, an extracorporeal blood circuit and/or a dialyzing fluid system includes a centrifugal pump for conveying blood or dialyzing fluid instead of an occluding pump. Centrifugal pumps bring about a large change in flow rate by even a small change in pressure difference across the pump. The device includes a measuring unit for measuring the flow rate of blood or dialyzing fluid conveyed by the centrifugal pump, and a control and computing unit configured to determine an incorrect vascular access or malfunction if a change in measured flow rate Q is more than a predetermined amount. For example, a small drop in pressure in the venous blood line leads to a marked increase in the flow rate of the centrifugal pump, which is used as a basis for the detection of an incorrect vascular access.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: April 13, 2021
    Assignee: Fresenius Medical Gare Deutschland GmbH
    Inventors: Arne Peters, Christoph Wiktor
  • Patent number: 10962455
    Abstract: A method for testing the rigidity of a particular disposable for volumetric balancing, for a blood treatment device. The method includes filling the disposable or portion thereof with a liquid, enclosing the filled liquid, so that a certain volume of liquid is present in the disposable unit or the portion thereof, supplying and/or discharging a certain volume of liquid, and measuring the change in pressure caused by the supply and/or discharge of the volume of liquid. A blood treatment device is also provided.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 30, 2021
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Arne Peters, Christoph Wiktor
  • Patent number: 10702643
    Abstract: For regulating and presetting the pump rate of a blood pump, a device and a method are configured for monitoring blood pressure values upstream and/or downstream from the blood pump. The monitored values, or another value formed from the monitored values, are compared with a limit value, which depends on an operating parameter or a pump parameter of the blood pump. In violation of the limit value, the pump rate of the blood pump is modified to such an extent, or a new pump rate is determined, such that the limit value is no longer violated or the degree of violation is reduced.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: July 7, 2020
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Christoph Wiktor, Arne Peters, Alexander Heide, Manfred Weis
  • Publication number: 20190383282
    Abstract: The invention relates to a positive displacement pump 1 for conveying medical fluids, which pump has a pumping chamber 5 and a positive displacement element 15, and to a blood treatment apparatus comprising a positive displacement pump 1. In addition, the invention relates to a method for controlling a positive displacement pump 1 for conveying medical fluids. The positive displacement pump 1 according to the invention has an actuation member 20 in operative connection with the positive displacement element 20 for displacing or deforming the positive displacement element in order to convey the fluid into the pumping chamber or out of the pumping chamber, and a drive device 21 for displacing the actuation member 20. A control unit 14 is provided for to controlling the drive device 21 and an inlet valve 12 and outlet valve 13. The actuation member 20 is in operative connection with the positive displacement element 15 via a working chamber 19 that is filled with gas and has a sealed volume.
    Type: Application
    Filed: December 17, 2017
    Publication date: December 19, 2019
    Inventors: Arne PETERS, Christoph WIKTOR, Gokhan ORTER
  • Patent number: 10350344
    Abstract: The invention relates to a method of monitoring an extracorporeal blood treatment apparatus having an extracorporeal blood circuit and in particular a venous needle disconnection by means of pressure pulse measurement at the extracorporeal blood circuit. The invention further relates to an apparatus for carrying out a monitoring method and to a blood treatment apparatus which includes a corresponding monitoring apparatus.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: July 16, 2019
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Christoph Wiktor, Alexander Heide, Arne Peters
  • Patent number: 10335529
    Abstract: An extracorporeal blood treatment apparatus having a fluid system and a pump for conveying fluid in the fluid system, wherein the pump is a non-occluding pump, and a method for shutting off or reducing the speed of rotation of a non-occluding pump in a fluid system of an extracorporeal blood treatment apparatus. The apparatus and the method are characterized in that before the speed of rotation is reduced or the pump is shut off, the fluid flow into the feed line and out of the discharge line is first interrupted, and after a predetermined time interval after interruption of the fluid flow has elapsed, the speed of rotation of the pump is reduced or the pump is shut off. The time-delayed shut-off of the pump prevents a reverse flow of fluid, particularly of blood into the arterial blood line, even in the absence of occlusion. As a result of the time-delayed shut-off or reduction in the speed of rotation of the pump, however, an excess pressure is produced in the fluid system.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: July 2, 2019
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventor: Christoph Wiktor
  • Patent number: 10307526
    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).
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: June 4, 2019
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Alexander Heide, Dejan Nikolic, Arne Peters, Christoph Wiktor
  • Publication number: 20190137372
    Abstract: The present invention concerns a method for testing the rigidity of a particular disposable for volumetric balancing, for a blood treatment device, comprised of the following steps: filling the disposable or portion thereof with a liquid, enclosing the filled liquid, so that a certain volume of liquid is present in the disposable unit or the portion thereof, supplying and/or discharging a certain volume of liquid, and measuring the change in pressure caused by the supply and/or discharge of the volume of liquid. The present invention further concerns a blood treatment device.
    Type: Application
    Filed: December 1, 2016
    Publication date: May 9, 2019
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Arne PETERS, Christoph WIKTOR