Patents Assigned to Fresenius Medical Care Deutschland GmbH
  • 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
  • Patent number: 11925479
    Abstract: The present invention relates to a method of determining the body temperature or a temperature correlated therewith of a patient connected to an extracorporeal blood circuit, wherein the extracorporeal blood circuit has a heat exchanger which is flowed through by blood at one side and by a heat carrier medium at the other side, wherein the temperature (Tdi) of the heat carrier medium at the inlet side is measured at the inlet of the heat exchanger and the temperature (Tdo) of the heat carrier medium at the outlet side is measured at the outlet of the heat exchanger and the volume flow of the heat carrier medium (Qd) is measured; and in that the temperature (Tbi) of the blood at the inlet side is determined at the inlet of the heat exchanger in accordance with the relationship Tbi=Tdi (Qd/D) (Tdo?Tdi), where the value D is a value characteristic of the heat transfer by the heat exchanger.
    Type: Grant
    Filed: September 4, 2017
    Date of Patent: March 12, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventor: Andreas Maierhofer
  • Patent number: 11918724
    Abstract: This disclosure relates to a method for temporarily interrupting an extracorporeal treatment of blood of a patient by use of a blood treatment apparatus. The method comprises activating or controlling a control device provided and configured to bring the blood treatment apparatus into a state in which the blood treatment of the patient can be interrupted with the intention to continue the blood treatment. This disclosure further relates to a control device, a blood treatment apparatus, a digital storage means, a computer program product as well as a computer program.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: March 5, 2024
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Uwe Hermann, Sabine Kipp, Christine Nachbaur-Sturm, Thomas Pusinelli, Martin Gruendken, Georg Verch
  • Patent number: 11918722
    Abstract: The present disclosure relates to an insert piece for a blood tubing set. The insert piece includes at least a first connection site for connecting a first tubing portion of the blood tubing set to the insert piece, and a second connection site for connecting a second tubing portion of the blood tubing set to the insert piece. The insert piece also includes a third connection site for connecting a third tubing portion of the blood tubing set to the insert piece, and a main line for forwarding a first liquid through the insert piece. The main line is in fluid communication with the first connection site and with the second connection site. The insert piece also includes a secondary line for forwarding a second liquid into the main line. The secondary line is in fluid communication with the third connection site.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 5, 2024
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Jürgen Häcker, Jürgen Klewinghaus
  • Patent number: 11911547
    Abstract: The invention relates to an apparatus for preparing ready-to-use solutions for peritoneal dialysis that has a sterilization compartment; a filling line leading to the sterilization compartment and having a connector arranged at its end at the compartment side for connecting a disposable; a water treatment system arranged in the filling line; and a sealing system. The invention further relates to a disposable for preparing ready-to-use solutions for peritoneal dialysis in such an apparatus and to a method of preparing ready-to-use solutions for peritoneal dialysis using such an apparatus and such a disposable.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: February 27, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventor: Stefan Weiss
  • Publication number: 20240062892
    Abstract: The present invention relates to a device for the combined display of data relating to at least one blood treatment machine and data relating to at least one water preparation system, wherein the device has a control unit that is programmed to consolidate different data formats of the data relating to the at least one blood treatment machine and the data relating to the at least one water preparation system and preferably to integrate the data and display them together, whereby a user receives indications with respect to an optimized operation of the at least one blood treatment machine and/or the at least one water preparation system. The present invention furthermore relates to a corresponding method.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 22, 2024
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Jannik MÜLLER, Florian SCHWAIGER, Norman FÖRSTER, Bernd LUNGHAMER
  • Patent number: 11904083
    Abstract: The present disclosure relates to various aspects of a procedure for reducing the carbon dioxide content in blood during the treatment of patients. A first aspect of the present disclosure relates to a buffer solution for use in reducing the carbon dioxide content in the blood when treating a patient suffering from pulmonary insufficiency or the complete failure of lung function, wherein the fluid is in gas exchange with a portion of the patient's blood conducted through an extracorporeal circuit. The first aspect of the present disclosure further relates to an apparatus for the extracorporeal reduction of the carbon dioxide content in the blood using said buffer solution. A second aspect of the present disclosure relates to a system for extracorporeal blood treatment, likewise using said buffer solution and the apparatus, and furthermore to a treatment apparatus for extracorporeal blood treatment comprising the aforementioned system.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 20, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Petra Abel, Jurgen Klewinghaus, Rolf Zander
  • Publication number: 20240050903
    Abstract: A method is disclosed for cleaning a filter module by means of a filter module having the following steps: providing a filter module having a filter head with two filter head openings; channelling fluid into the filter head via a first filter head opening; and channelling a portion of the fluid out of the filter head via a second filter head opening. The method is characterized in that, after fluid has been channelled into the filter head (210) via a first filter head opening, the fluid is partially swirled in the filter head.
    Type: Application
    Filed: December 21, 2021
    Publication date: February 15, 2024
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thomas HEINZ, Sven REITER, Wehmeyer WOLFGANG, Gerhard WIESEN
  • Patent number: 11896747
    Abstract: A medical treatment machine, such as a home dialysis machine, can receive prescription parameters that define parameters of a medical treatment to be administered to a patient. A medical prescription is entered by a clinician into a clinical information system (CIS) that calls a system to evaluate the compatibility of the entered prescription by transmitting the prescription parameters to a server that has access to a database of medical devices and their operational parameters. The server compares the treatment parameters of the medical prescription to the operational parameters of the medical device and generates a prescription compatibility response indicting if the treatment parameters of the medical prescription can be executed by the medical device. The server returns to the CIS the prescription compatibility response to allow the prescription, e.g. in a digital or program form, to be securely transmitted or delivered via a connected health system to the medical device.
    Type: Grant
    Filed: July 1, 2022
    Date of Patent: February 13, 2024
    Assignees: Fresenius Medical Care Holdings, Inc., Fresenius Medical Care Deutschland GmbH
    Inventors: Paul Chamney, Harvey Cohen
  • Patent number: 11896749
    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: February 13, 2024
    Assignees: Fresenius Medical Care Deutschland GmbH, Fresenius Medical Care Holdings, Inc.
    Inventors: Massimo Earl Fini, Lynn E. Jensen, Dacey John Ryan, Alexander Heide, Dejan Nikolic, Arne Peters
  • Patent number: 11890400
    Abstract: The present invention relates to a device (1) and a corresponding method for determining residual blood in a dialyzer (2) comprising a holding device (6) configured to accommodate a dialyzer (2), an image capturing device (7) configured to capture at least one image of a dialyzer (2) accommodated by the holding device (6), in particular a filter (4) located in the dialyzer (2), and generate corresponding image data having a plurality of image points, each of which assigned at least one respective intensity value, in particular a color value, and a control device (9) configured to determine residual blood information characterizing the presence and/or content of residual blood in the dialyzer (2) on the basis of a statistical frequency of at least a portion of the intensity values in the at least one image. The invention further relates to a dialysis system having such a device (1).
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: February 6, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Ansgar Erlenkoetter, Lukas Utzig
  • Patent number: 11890402
    Abstract: The invention relates to an extracorporeal blood treatment device for carrying out an extracorporeal blood treatment, in which blood flows in an extracorporeal blood circuit A through the blood chamber 2 of a dialyser 1 which is divided by a semi-permeable membrane 4 into the blood chamber 2 and a dialysate chamber 3. The invention further relates a method for monitoring the integrity of a dialyser 1. The blood treatment device provides a preparation mode in preparation for the blood treatment, in which the dialysate chamber 3 of the dialyser 1 (filter) is filled with a liquid, while the blood chamber 2 is not filled with blood, and a treatment mode following the preparation mode, in which blood is conveyed through the blood chamber 2. For monitoring the integrity of the dialyser 1, in the preparation mode the fluid system B including the dialysate chamber 3, or a portion of the fluid system including the dialysate chamber, is filled with a liquid.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: February 6, 2024
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Jurgen Hacker, Soren Gronau
  • Patent number: 11890444
    Abstract: The invention relates to a connector (1) constituted by: base provided with a tubular wall (13) closed by a bottom wall (11) provided with at least one through-opening (111); a membrane provided with a flexible wall (23) having a central opening, a tubing (22) placed in the opening of the flexible wall; sealing means for preventing a liquid from leaving the connector through the tubing. The base and the membrane are fixed to each other in a liquid-tight manner. The flexible wall allows axial displacement of the tubing so that it can be moved between a closed position, in which a liquid cannot leave the connector through the conduit of the tubing, and an open position, in which a liquid from can leave the connector through the tubing. Retaining means (121, 222a) maintain the tubing (22) closed with a force that can be overcome manually to open it.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 6, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Joanna Charre, Francois Dumont D'Ayot, Philippe Laffay
  • Publication number: 20240033409
    Abstract: The present invention relates to a membrane gas exchanger having a housing in which a first chamber and a second chamber as well as a membrane are arranged, wherein the membrane is gas permeable and liquid impermeable and separates the first chamber and the second chamber from one another, wherein the first chamber forms the blood side and the second chamber forms the gas side of the membrane gas exchanger, and wherein the first chamber has a blood inlet and a blood outlet, and wherein the second chamber has a gas inlet and a gas outlet, and wherein the blood inlet, the blood outlet, the gas inlet, and the gas outlet are arranged at the housing, wherein the housing is the housing of a dialyzer, and wherein a first adapter is provided that has an inlet and at least two outlets, with the inlet being connected to the gas outlet of the housing.
    Type: Application
    Filed: December 3, 2021
    Publication date: February 1, 2024
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventor: Jürgen KLEWINGHAUS
  • Patent number: 11883639
    Abstract: The present invention relates to a gear pump having a housing that has an inflow for the liquid to be conveyed, that has an outflow for the conveyed liquid, and that has a pump chamber in which the gear or gears for conveying the liquid are present, with at least one bearing position being present in the housing, in which bearing position at least one gear is rotatably received, wherein the inflow is in a different plane than the outflow; and wherein at least one first flushing passage that extends up to the bearing position(s) is in direct or indirect fluid communication with the inflow and/or with the outflow.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: January 30, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventor: Simone Lippert
  • Patent number: 11883572
    Abstract: The present invention relates to a dialysis machine that is configured to be equipped with an extracorporeal blood system comprising a dialysis solution system that is configured to be equipped with a dialyzer, wherein a mixing region, in particular a mixing chamber, is provided in which the fresh dialysis solution or a component thereof is located in the operation of the dialysis machine, with a concentrate line being in fluid communication with the mixing region, through which concentrate line concentrate can be conducted from a concentrate container into the mixing region, wherein at least two electrically conductive elements are arranged spaced apart from one another in or at the concentrate line or lines; that a measuring device is provided which is electrically connected to the conductive elements and which is configured to measure the conductance or a value correlated therewith between them; and that a control unit is provided which is configured to compare the measured value with a desired value, with
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: January 30, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Tobias Irrgang, Tilman Stäblein, Alfred Gagel, Peter Klöffel
  • Patent number: 11878275
    Abstract: The invention relates to a method for potting hollow fiber membranes in potting compounds of increased temperature resistance, wherein an isocyanate component with inorganic particles and a polyol component are processed into a potting compound and the hollow fiber membranes are tightly encased by the potting compound in at least one potting zone by the hardening of said potting compound.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: January 23, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Matthias Faust, Manuel Wilhelm
  • Patent number: 11878099
    Abstract: The present invention relates to a method and to an apparatus for preparing a dialysis solution, wherein the apparatus has a first circuit and a second circuit, wherein the first circuit has a container for receiving the consumed dialysis solution or fresh water or another fluid, the primary side of a filter connected downstream of the container, and a return line from the primary side of the filter into the container, wherein the filter is configured to prepare purified water from the consumed dialysis solution or from fresh water or from another fluid, and wherein the second circuit has the secondary side of the filter, the dialyzate side of a dialyzer, a reservoir, a line that leads from the reservoir to the secondary side of the filter, by means of which dialyzate or a dialyzate concentrate can be supplied to the secondary side of the filter, and a filtrate line that leads away from the secondary side of the filter.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: January 23, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Torsten Keller, Stefan Konrad Marterstock
  • Publication number: 20240016990
    Abstract: The present invention relates to a method for automatically verifying correct setup of a blood treatment apparatus, in particular a gravimetric cycler for peritoneal dialysis having only one scale and a hose system, wherein the hose system comprises at least three line portions for connection to at least one drainage bag, at least one solution bag and a patient, wherein, by means of the scale, a change in weight of the solution bag and/or the drainage bag during a filling process of the hose system is detected and compared to an expected value. Furthermore, the invention relates to a corresponding blood treatment apparatus.
    Type: Application
    Filed: December 2, 2021
    Publication date: January 18, 2024
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Klaus WOLF, Bernd MOHR, Manuel HASSLER
  • Patent number: 11872530
    Abstract: The invention relates to the providing of hydrophobic and hydrophilic polymer-based hollow fiber membranes containing a water-insoluble antioxidant; in particular, the invention relates to the providing of hollow fiber membranes for the extracorporeal treatment of blood, wherein the hollow fiber membranes have improved biocompatibility relative to treatment blood, in particular improved complement activation and lower platelet loss vis-à-vis treatment blood. At the same time, the elution of hydrophilic polymers from the lumen of the hollow fiber membrane is reduced.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: January 16, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Michael Paul, Rainer Fislage, Dietmar Hansel