Patents by Inventor Gerhard Wiesen

Gerhard Wiesen 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: 11571503
    Abstract: The present invention relates to a method of adding an anticoagulant to the blood of a patient, wherein the addition takes place in the form of a bolus, wherein the bolus application time B depends on the values TBV and CO, with TBV representing the blood volume of the patient and CO the cardiac output of the patient. The present invention furthermore relates to an apparatus for adding a coagulant to the blood of a patient.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: February 7, 2023
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Gerhard Wiesen, Reiner Spickermann
  • Patent number: 11559617
    Abstract: The present invention refers to a system and method for opening a concentrate container without the need for a human to directly handle the concentrate container and connecting the concentrate container to a blood treatment device. Aspects of the invention are directed to a container for concentrate and a blood treatment device.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: January 24, 2023
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Winfried Brehm, Phillippe Laffay, Gerhard Wiesen
  • Publication number: 20220355007
    Abstract: The present invention refers to a system and method for connecting a concentrate container with a blood treatment device with improved hygiene. Furthermore, the invention refers to a container and blood treatment device to be used in a method according to the present invention.
    Type: Application
    Filed: September 10, 2020
    Publication date: November 10, 2022
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Winfried BREHM, Philippe LAFFAY, Gerhard WIESEN
  • Publication number: 20220339334
    Abstract: The present invention refers to a system and method for opening a concentrate container without the need for a human to directly handle the concentrate container and connecting the concentrate container to a blood treatment device. Aspects of the invention are directed to a container for concentrate and a blood treatment device.
    Type: Application
    Filed: September 10, 2020
    Publication date: October 27, 2022
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Winfried BREHM, Philippe LAFFAY, Gerhard WIESEN
  • Publication number: 20220313881
    Abstract: The present invention refers to a container comprising a connection portion allowing for an easy, efficient and more hygienic connection of the container to a fluid dosing unit of a blood treatment device. According to the present invention the fluid dosing unit comprises a valve that fluidically closes the fluid dosing unit if no container is connected to the fluid dosing unit and that opens the fluid dosing unit upon connection of a container to the fluid dosing unit. Thus, undesired spillages potentially arising upon disconnection of the container from the fluid dosing unit can be avoided.
    Type: Application
    Filed: September 10, 2020
    Publication date: October 6, 2022
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Winfried BREHM, Philippe LAFFAY, Gerhard WIESEN
  • Publication number: 20220181000
    Abstract: The present disclosure relates to a system with a blood treatment apparatus and with a surveillance system for monitoring the occurrence of a state of a group of predetermined states, for which states it has been previously predefined or predetermined that when they occur, gloves are to be worn by the user of the blood treatment apparatus in order to avoid contaminations or carrying over of germs.
    Type: Application
    Filed: March 23, 2020
    Publication date: June 9, 2022
    Inventors: Gerhard Wiesen, Martin Buehner, Maria Millan-Galante
  • Publication number: 20220096720
    Abstract: The present invention relates to an apparatus for an extracorporeal blood treatment having an extracorporeal blood circuit in which a dialyzer is arranged and having a dialyzate circuit, wherein the blood circuit is in fluid communication with a first chamber and the dialyzate circuit is in fluid communication with a second chamber of the dialyzer, and wherein the two chambers are separated from one another by a semipermeable membrane, with a dialyzate pump for a conveying of the dialysis solution being present in the dialyzate circuit, wherein the apparatus has a control unit that is configured to operate the apparatus in a first phase and in a second phase following the first phase, wherein the dialyzate pump is operated with a smaller flow rate in the first phase than in the second phase and/or wherein the dialyzate pump conveys a dialysis solution in the first phase that is of a higher concentration with respect to at least one component than in the second phase.
    Type: Application
    Filed: January 24, 2020
    Publication date: March 31, 2022
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Reinder SPICKERMANN, Carsten MUELLER, Pascal KOPPERSCHMIDT, Andreas MAIERHOFER, Alfred GAGEL, Gerhard WIESEN, Liubov SMYSLOVA
  • Publication number: 20220023518
    Abstract: The invention relates to a dialysis machine comprising an apparatus for the treating of fluids, in particular for the treating of water for the dialysis, wherein the apparatus comprises one or more hollow fiber membrane filters, fluid lines, one or more sampling points and valve connections, wherein the apparatus is configured such that contaminants can concentrate in a first hollow fiber membrane filter and conclusions can be drawn as to the contamination of the provided fluid, in particular water, from an analysis value determined from samples of the concentrated contaminants. The invention further relates to a method for monitoring the apparatus for treating fluids, in particular water, for contamination.
    Type: Application
    Filed: December 27, 2019
    Publication date: January 27, 2022
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Liubov SMYSLOVA, Gerhard WIESEN
  • Patent number: 11052182
    Abstract: The present invention relates to a method for checking a dialyzer for the presence of a leak in the semipermeable membrane of the dialyzer, wherein the membrane divides the inner dialyzer space into a least one blood chamber and into at least one dialyzate chamber, wherein the blood chamber is flowed through by blood in the operation of the dialyzer and is in fluid communication with a blood-side line system and the vascular system of the patient, and wherein the dialyzate chamber is flowed through by dialysis fluid in the operation of the dialyzer and is in fluid communication with a dialyzate-side line system, wherein the method comprises the following steps: a) emptying the blood chamber or the dialyzate chamber of blood and of dialysis fluid respectively and keeping the fluid (blood or dialyzate) in the non-emptied dialyzate chamber or blood chamber; b) building up a test pressure by means of a gas, in particular by means of air, in the emptied blood chamber or in the emptied dialyzate chamber; and c)
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 6, 2021
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Reiner Spickermann, Gerhard Wiesen
  • Patent number: 11007115
    Abstract: A container includes a dry concentrate designed such that the dry concentrate forms an acid liquid concentrate, or a part of an acid liquid concentrate, which is suitable for manufacturing a dialysis solution, on the dissolution of the dry concentrate in a liquid, preferably in water.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: May 18, 2021
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Peter Kloeffel, Gerhard Wiesen, Francois D'Ayot, Philippe Laffey, Benoit Luaire
  • Publication number: 20210077698
    Abstract: The present invention refers to a system and method for opening a concentrate container without the need for a human to directly handle the concentrate container and connecting the concentrate container to a blood treatment device. Aspects of the invention are directed to a container for concentrate and a blood treatment device.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 18, 2021
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Winfried BREHM, Phillippe LAFFAY, Gerhard WIESEN
  • Publication number: 20210077699
    Abstract: The present invention refers to a system and method for connecting a concentrate container with a blood treatment device with improved hygiene. Furthermore, the invention refers to a container and blood treatment device to be used in a method according to the present invention.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 18, 2021
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Winfried Brehm, Phillippe Laffay, Gerhard Wiesen
  • Publication number: 20210077697
    Abstract: The present invention refers to a container comprising a connection portion allowing for an easy, efficient and more hygienic connection of the container to a fluid dosing unit of a blood treatment device. According to the present invention the fluid dosing unit comprises a valve that fluidically closes the fluid dosing unit if no container is connected to the fluid dosing unit and that opens the fluid dosing unit upon connection of a container to the fluid dosing unit. Thus, undesired spillages potentially arising upon disconnection of the container from the fluid dosing unit can be avoided.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 18, 2021
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Winfried BREHM, Phillippe LAFFAY, Gerhard WIESEN
  • Publication number: 20200197597
    Abstract: The present invention relates to a method of adding an anticoagulant to the blood of a patient, wherein the addition takes place in the form of a bolus, wherein the bolus application time B depends on the values TBV and CO, with TBV representing the blood volume of the patient and CO the cardiac output of the patient. The present invention furthermore relates to an apparatus for adding a coagulant to the blood of a patient.
    Type: Application
    Filed: June 14, 2018
    Publication date: June 25, 2020
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Gerhard WIESEN, Reiner SPICKERMANN
  • Publication number: 20200164313
    Abstract: The invention relates to a connection device for receiving and connecting filter modules, in particular tubular filter modules, having at least one lateral, in particular radial, connector wherein a connecting apparatus of the connection device connects the filter module at the lateral connector and fixes it in the connection device. Further connecting apparatus of the connection device serve in the connecting of connectors arranged coaxially on the filter module, wherein the coaxial connectors are not fixed via the further connecting apparatus.
    Type: Application
    Filed: August 14, 2018
    Publication date: May 28, 2020
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thomas HEINZ, Torsten KELLER, Gerhard WIESEN
  • Patent number: 10661071
    Abstract: The invention relates to a hose clamp for a blood treatment device, wherein the hose clamp has a housing (4) and an electromagnetically driven compression piece (1), with the electromagnetic drive of the compression piece (1) being configured such that the compression piece (1) is opened against a mechanical restoring force (A) in a state of the hose clamp with an applied current and is closed by the mechanical restoring force (A) in a currentless state of the hose clamp; wherein the hose clamp has, in addition to the electromechanical drive, a mechanical actuator (5) with which the compression piece (1) can be opened manually against the mechanical restoring force (A) in the currentless state of the hose clamp; and wherein the contact elements (6, 7) of the actuator (5) and of the compression piece (1) are configured such that they form a mechanical connection between the actuator (5) and the compression piece (1) after an opening of the compression piece (1) in the currentless state, said connection prevent
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: May 26, 2020
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Winfried Brehm, Gerhard Wiesen, Karsten Fischer
  • Patent number: 10258725
    Abstract: The present invention relates to extracorporeal blood treatment devices and methods and devices for conserving extracorporeal blood treatment devices. In accordance with the present invention, an antifreeze agent in introduced only into that part of the dialysis liquid system of the blood treatment device that includes the volume lying upstream of a sterile filter with which sterile substituate is recovered from the dialysis liquid. Accordingly, that part of the dialysis liquid system that includes the volume lying downstream of the sterile filter is not filled with an antifreeze agent. The present invention makes it possible, after removal of the sterile filter, to easily and safely separate a substituate segment from the rest of the dialysis liquid system and drain off liquid located in the substituate segment.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: April 16, 2019
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventor: Gerhard Wiesen
  • Patent number: 10251992
    Abstract: A chamber for a blood treatment system having a blood inlet and a blood outlet, a filter element for air separation which is arranged at the head side with respect to the position of the chamber in the operating state, and which can be decoupled from the blood present in the chamber in the operating state via a further liquid.
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: April 9, 2019
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Reiner Spickermann, Gerhard Wiesen
  • Publication number: 20190001043
    Abstract: The present invention relates to a method for checking a dialyzer for the presence of a leak in the semipermeable membrane of the dialyzer, wherein the membrane divides the inner dialyzer space into a least one blood chamber and into at least one dialyzate chamber, wherein the blood chamber is flowed through by blood in the operation of the dialyzer and is in fluid communication with a blood-side line system and the vascular system of the patient, and wherein the dialyzate chamber is flowed through by dialysis fluid in the operation of the dialyzer and is in fluid communication with a dialyzate-side line system, wherein the method comprises the following steps: a) emptying the blood chamber or the dialyzate chamber of blood and of dialysis fluid respectively and keeping the fluid (blood or dialyzate) in the non-emptied dialyzate chamber or blood chamber; b) building up a test pressure by means of a gas, in particular by means of air, in the emptied blood chamber or in the emptied dialyzate chamber; and
    Type: Application
    Filed: December 23, 2016
    Publication date: January 3, 2019
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Reiner SPICKERMANN, Gerhard WIESEN
  • Publication number: 20180353746
    Abstract: The invention relates to a hose clamp for a blood treatment device, wherein the hose clamp has a housing (4) and an electromagnetically driven compression piece (1), with the electromagnetic drive of the compression piece (1) being configured such that the compression piece (1) is opened against a mechanical restoring force (A) in a state of the hose clamp with an applied current and is closed by the mechanical restoring force (A) in a currentless state of the hose clamp; wherein the hose clamp has, in addition to the electromechanical drive, a mechanical actuator (5) with which the compression piece (1) can be opened manually against the mechanical restoring force (A) in the currentless state of the hose clamp; and wherein the contact elements (6, 7) of the actuator (5) and of the compression piece (1) are configured such that they form a mechanical connection between the actuator (5) and the compression piece (1) after an opening of the compression piece (1) in the currentless state, said connection prevent
    Type: Application
    Filed: November 11, 2015
    Publication date: December 13, 2018
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Winfried BREHM, Gerhard WIESEN, Karsten FISCHER