Patents by Inventor Dejan Nikolic

Dejan Nikolic 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).

  • 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: 20210138133
    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: Tommy Huang, Dacey John Ryan, Alexander Heide, Dejan Nikolic, Arne Peters
  • Publication number: 20210138145
    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, Arne Peters, Dejan Nikolic
  • 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: 10806841
    Abstract: A system is provided that includes 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 system 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.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: October 20, 2020
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Dejan Nikolic, Christoph Konig
  • Publication number: 20200306433
    Abstract: The present disclosure relates to a medical pump drive comprising a pump housing and a pump motor provided in the pump housing. The pump drive also includes a rechargeable voltage source for storing electrical energy, or a rechargeable battery, for a voltage supply of the pump motor and a magnetic section for magnetically coupling of further pump sections, and/or for magnetically driving of elements, in particular a magnetically driven pump rotor. The pump also includes an electronic controller. The disclosure further relates to a pump, an induction charging station, a tube set, and a blood treatment apparatus.
    Type: Application
    Filed: September 26, 2018
    Publication date: October 1, 2020
    Inventors: Alexander Heide, Arne Peters, Dejan Nikolic, Juergen Klewinghaus
  • Patent number: 10620029
    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.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: April 14, 2020
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Alexander Heide, Dejan Nikolic
  • Publication number: 20200093974
    Abstract: This disclosure relates to a medical device including a hard part and a converter. The hard part has fluid paths for conducting a medical fluid through the hard part. The converter is arranged to measure a characteristic of the medical fluid while the medical fluid is present in one of the fluid paths. At least a section of the converter is applied or superimposed to the hard part by at least one additive application method.
    Type: Application
    Filed: March 20, 2018
    Publication date: March 26, 2020
    Inventors: Alexander Heide, Dejan Nikolic
  • Publication number: 20200016316
    Abstract: This disclosure relates to a medical device including, a hard part, a converter, and a conductive path. The hard part has fluid paths for guiding a medical fluid, in particular blood, through the hard part. The converter is arranged to measure a characteristic of the medical fluid while the fluid is present in one of the fluid paths. At least a first section of the converter or of the conductive path is applied to or superimposed on the hard part by a first additive application method. At least a second section of the converter or of the conductive path is applied to the hard part by a second application method. The first and the second additive application methods differ from each other.
    Type: Application
    Filed: March 20, 2018
    Publication date: January 16, 2020
    Inventors: Alexander Heide, Dejan Nikolic
  • Patent number: 10345127
    Abstract: A cassette module for a differential flowmeter has a first channel and a second channel which carry fluid during operation of the differential flowmeter and are permeated by a magnetic field during operation of the differential flowmeter, each having an electrode pair arranged on the first channel and on the second channel. A flow difference between the first fluid-carrying channel and the second fluid-carrying channel can be determined by comparing the signals on the first electrode pair and on the second electrode pair. The first channel has an additional section that is permeated by the magnetic field during operation. Another electrode pair is arranged in the additional section, so that a change in the measurement conditions can be detected by comparing the signal on the first electrode pair and on the additional electrode pair.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: July 9, 2019
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Alexander Heide, Dejan Nikolic
  • 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: 20190143015
    Abstract: The invention relates to a medical treatment apparatus comprising a tube set 20, a peristaltic pump 6 for conveying fluid, and a monitoring apparatus 15 for monitoring the occlusion of the positive displacement elements 13A, 13B of the peristaltic pump. In addition, the invention relates to a tube set 20 for a medical treatment apparatus, and to a method for monitoring the occlusion of the occlusion elements of a peristaltic pump for conveying a fluid for a medical treatment apparatus. The invention is based on the fact that the occlusion of the positive displacement elements 13A, 13B of the peristaltic pump 6 is monitored in order to monitor the fluid flow in the hose line 5.
    Type: Application
    Filed: May 4, 2017
    Publication date: May 16, 2019
    Inventors: Alexander HEIDE, Arne PETERS, Dejan NIKOLIC
  • Patent number: 10260682
    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.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: April 16, 2019
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Dejan Nikolic, Alexander Heide
  • Publication number: 20180313499
    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.
    Type: Application
    Filed: June 25, 2018
    Publication date: November 1, 2018
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: DEJAN NIKOLIC, ALEXANDER HEIDE
  • Publication number: 20180177932
    Abstract: A system is provided that includes 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 system 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.
    Type: Application
    Filed: January 31, 2018
    Publication date: June 28, 2018
    Inventors: Dejan NIKOLIC, Christoph KONIG
  • Publication number: 20180093029
    Abstract: The disclosure relates to a functional device, in particular a medical functional device, having at least one fluid circuit. The fluid circuit comprises at least one heat exchange device being arranged and/or embodied between a first section of the fluid circuit and a second section of the fluid circuit. The disclosure relates further to a balancing unit, a treatment apparatus, and a balancing method.
    Type: Application
    Filed: March 21, 2016
    Publication date: April 5, 2018
    Inventors: Petra Abel, Alexander Heide, Dejan Nikolic, Arne Peters, Elke Schulte, Christoph Wiktor
  • Publication number: 20180071447
    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.
    Type: Application
    Filed: September 26, 2017
    Publication date: March 15, 2018
    Inventors: Soeren Gronau, Goetz Guenther, Juergen Haecker, Martin Lauer, Joachim Manke, Dejan Nikolic, Manfred Weis
  • Patent number: 9907893
    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.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 6, 2018
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Dejan Nikolic, Christoph Koenig
  • Publication number: 20180043072
    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: March 21, 2016
    Publication date: February 15, 2018
    Inventors: Petra Abel, Alexander Heide, Dejan Nikolic, Arne Peters, Elke Schulte, Christoph Wiktor
  • Publication number: 20180031399
    Abstract: A cassette module (32, 46) for a differential flowmeter (305, 415) is disclosed, wherein the cassette module (32, 46) forms a first channel (30, 45) and a second channel (31, 44), which channels carry fluid during operation of the differential flowmeter and are permeated by a magnetic field (33, 43) during operation of the differential flowmeter (305, 415), each having an electrode pair (301, 302, 403, 405) arranged on the first channel (30, 45) and on the second channel (31, 44). A flow difference between the first fluid-carrying channel (30, 44) and the second fluid-carrying channel (31, 45) can be determined by comparing the signals on the first electrode pair (301, 403) and on the second electrode pair (302, 405). The first channel (30, 45) forms an additional section (34, 41) that is permeated by the magnetic field during operation.
    Type: Application
    Filed: February 1, 2016
    Publication date: February 1, 2018
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Alexander HEIDE, Dejan NIKOLIC