Patents by Inventor Frederik Fritzsch

Frederik Fritzsch 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).

  • Perestaltic pump and device for isolating cells from biological tissue
    Patent number: 11639717
    Abstract: The invention is directed to a peristaltic pump (10), comprising: a flexible membrane (1) forming a at least one bladder (2) against a support, wherein each bladder is provided with one input orifice (4) which admits a fluid to the bladder (2) and one outlet orifice (5) which releases the fluid from the bladder (2); and at least one roller bearing (6) is configured to rotate about an axis (7) and to apply a compressive force against the at least one bladder (2). The peristaltic pump may be in fluid communication with a tapered jet (11).
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: May 2, 2023
    Assignee: Miltenyi Biotec B.V. & Co. KG
    Inventors: Frederik Fritzsch, Ralf-Peter Peters
  • Multilevel disposable cartridge for biological specimens
    Patent number: 11161111
    Abstract: A multilevel, disposable cartridge may have a plurality of fluid wells or reservoirs holding a plurality of reagents, and a sample viewing area to view a biological sample. The reagents may be applied sequentially to the sample by opening a specific valve formed in an elastomeric, flexible layer under the fluid well. The fluid channels may be formed in a first rigid plastic layer to conduct the reagent to the sample. Pneumatic channels for applying suction or pressure to the valves may be formed in a second rigid, plastic layer.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: November 2, 2021
    Assignee: Miltenyi Biotec B. V. & Co. KG
    Inventors: Eiad Kabaha, Stefan Miltenyi, Frederik Fritzsch, Ralf-Peter Peters
  • PERESTALTIC PUMP AND DEVICE FOR ISOLATING CELLS FROM BIOLOGICAL TISSUE
    Publication number: 20200324031
    Abstract: The invention is directed to a peristaltic pump (10), comprising: a flexible membrane (1) forming a at least one bladder (2) against a support, wherein each bladder is provided with one input orifice (4) which admits a fluid to the bladder (2) and one outlet orifice (5) which releases the fluid from the bladder (2); and at least one roller bearing (6) is configured to rotate about an axis (7) and to apply a compressive force against the at least one bladder (2). The peristaltic pump may be in fluid communication with a tapered jet (11).
    Type: Application
    Filed: March 30, 2020
    Publication date: October 15, 2020
    Applicant: Miltenyi Biotec B.V. & Co. KG
    Inventors: Frederik Fritzsch, Ralf-Peter Peters
  • Refillable column system
    Patent number: 10486165
    Abstract: The invention is directed to a column system for separation of particles comprising a reservoir section with a input opening; a filter section provided with a filter matrix and an output opening and a plunger having a first and a second end, the first end fitting into the reservoir section characterized in that the plunger is provided with at least one channel providing gaseous communication from the first end to the second end. The column system may be used for magnetic cell separation.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: November 26, 2019
    Assignee: Miltengi Biotec, GmbH
    Inventors: Frederik Fritzsch, Philipp Steinbrück, Oliver Schilling, Ursula Bissa
  • MULTILEVEL DISPOSABLE CARTRIDGE FOR BIOLOGICAL SPECIMENS
    Publication number: 20190126274
    Abstract: A multilevel, disposable cartridge may have a plurality of fluid wells or reservoirs holding a plurality of reagents, and a sample viewing area to view a biological sample. The reagents may be applied sequentially to the sample by opening a specific valve formed in an elastomeric, flexible layer under the fluid well. The fluid channels may be formed in a first rigid plastic layer to conduct the reagent to the sample. Pneumatic channels for applying suction or pressure to the valves may be formed in a second rigid, plastic layer.
    Type: Application
    Filed: June 19, 2017
    Publication date: May 2, 2019
    Applicant: Miltenyi Biotec GmbH
    Inventors: Eiad Kabaha, Stefan Miltenyi, Frederik Fritzsch, Ralf-Peter Peters
  • REFILLABLE COLUMN SYSTEM
    Publication number: 20180326429
    Abstract: The invention is directed to a column system for separation of particles comprising a reservoir section with a input opening; a filter section provided with a filter matrix and an output opening and a plunger having a first and a second end, the first end fitting into the reservoir section characterized in that the plunger is provided with at least one channel providing gaseous communication from the first end to the second end. The column system may be used for magnetic cell separation.
    Type: Application
    Filed: April 13, 2018
    Publication date: November 15, 2018
    Applicant: Miltenyi Biotec GmbH
    Inventors: Frederik Fritzsch, Philipp Steinbrück, Oliver Schilling, Ursula Bissa
  • Mixing device for homogenization of cell suspensions
    Patent number: 9873858
    Abstract: The invention is directed to a homogenization device for cell suspensions, comprising a first rotating magnet; a shaft on which a propeller mixer is attached which rotates around the longitudinal axis of the shaft and is movable in lateral direction of the axis of the shaft; the propeller mixer being provided with at least two propeller blades of which at least one is provided with a second magnet; wherein the propeller mixer is rotated by magnetic interaction of the second magnet with the first rotating magnet.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 23, 2018
    Assignee: Miltenyi Biotec, GmbH
    Inventors: Jan Boddenberg, Stefan Miltenyi, Frederik Fritzsch