Patents by Inventor Ralf-Peter Peters
Ralf-Peter Peters 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).
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Patent number: 11639717Abstract: 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: GrantFiled: March 30, 2020Date of Patent: May 2, 2023Assignee: Miltenyi Biotec B.V. & Co. KGInventors: Frederik Fritzsch, Ralf-Peter Peters
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Patent number: 11633741Abstract: The invention is directed to a slide chamber comprising a top member (10), a fluidic seal (20), a transparent closure member (30) and base member (40) wherein the top member (10) is provided with at least one examination chamber (11) and a plurality of openings (12) positioned at two sides of the cover member outside of the examination chamber (11); and the base member (40) is provided with interconnecting means (41) complementary to the openings (12) of the top member characterized in that the interconnecting means (41) of the base member (40) and the openings (12) of the top member (10) are configured to mechanically interlock with each other by lateral movement thereby pressing the top member (10) against the transparent closure (30) member in a water-tight manner.Type: GrantFiled: February 19, 2020Date of Patent: April 25, 2023Assignee: Miltenyi Biotec B.V. & Co. KGInventors: Eiad Kabaha, Ralf-Peter Peters, Jan Keseberg, Andreas Bosio
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Patent number: 11161111Abstract: 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: GrantFiled: June 19, 2017Date of Patent: November 2, 2021Assignee: Miltenyi Biotec B. V. & Co. KGInventors: Eiad Kabaha, Stefan Miltenyi, Frederik Fritzsch, Ralf-Peter Peters
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Patent number: 11053470Abstract: The invention is directed to disposable cartridge for electroporation of cells, comprising a fluid compartment in an interior of the disposable cartridge; a first fluid port for providing cell suspension to the fluid compartment, and a second fluid port for delivering a fluid comprising at least one compound to be electroporated into the cells to the fluid compartment; a first electrode and a second electrode disposed in the fluid compartment; at least one exit port which delivers the fluid from the fluid compartment wherein the first and second fluid port have a fluid communication to a mixing channel which has a fluid communication to the fluid compartment, and a third ground electrode and a fourth ground electrode.Type: GrantFiled: August 31, 2016Date of Patent: July 6, 2021Assignee: Miltenyi Biotec, GmbHInventors: Stefan Miltenyi, Jan Boddenberg, Eiad Kabaha, Ralf-Peter Peters
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Publication number: 20200324031Abstract: 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: ApplicationFiled: March 30, 2020Publication date: October 15, 2020Applicant: Miltenyi Biotec B.V. & Co. KGInventors: Frederik Fritzsch, Ralf-Peter Peters
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Publication number: 20200298241Abstract: The invention is directed to a slide chamber comprising a top member (10), a fluidic seal (20), a transparent closure member (30) and base member (40) wherein the top member (10) is provided with at least one examination chamber (11) and a plurality of openings (12) positioned at two sides of the cover member outside of the examination chamber (11); and the base member (40) is provided with interconnecting means (41) complementary to the openings (12) of the top member characterized in that the interconnecting means (41) of the base member (40) and the openings (12) of the top member (10) are configured to mechanically interlock with each other by lateral movement thereby pressing the top member (10) against the transparent closure (30) member in a water-tight manner.Type: ApplicationFiled: February 19, 2020Publication date: September 24, 2020Applicant: Miltenyi Biotec B.V. & Co. KGInventors: Eiad Kabaha, Ralf-Peter Peters, Jan Keseberg, Andreas Bosio
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Patent number: 10363559Abstract: The invention relates to an apparatus for separating blood and at the same time an apparatus (1) for absorbing blood (19) and separating components such as blood plasma, as a sample liquid (2), having a feed device (13) for receiving the blood (2), a separating device (15) for separating blood components as the sample liquid (2), a channel (3) which takes up the sample liquid (2) preferably exclusively by capillary forces and a fill device for filling the channel (3) with sample liquid (2) in an inlet or feed region (18) of the channel (3), wherein the separating device (15), particularly a membrane, is domed, more particularly convexly shaped and projects with the apex of the convex shape into the filling device in the direction of filling.Type: GrantFiled: November 22, 2016Date of Patent: July 30, 2019Assignee: Boehringer Ingelheim International GmbHInventors: Gert Blankenstein, Holger Bartos, Ralf-Peter Peters, Christian Schoen
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Publication number: 20190126274Abstract: 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: ApplicationFiled: June 19, 2017Publication date: May 2, 2019Applicant: Miltenyi Biotec GmbHInventors: Eiad Kabaha, Stefan Miltenyi, Frederik Fritzsch, Ralf-Peter Peters
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Patent number: 10053663Abstract: The invention is directed to a centrifuge chamber comprising a cylinder having a base plate and a cover plate, a rotational axis with at least one port for input and/or output of liquids, at least one port for input of gases and at least one layer for cell culturing, wherein the layer for cell culturing comprises a gas-permeable membrane on which cells can be cultured and wherein the at least one port for input and/or output of gases is connected to the gas-permeable membrane.Type: GrantFiled: May 23, 2016Date of Patent: August 21, 2018Assignee: Miltenyi Biotec, GmbHInventors: Eiad Kabaha, Stefan Miltenyi, Ralf-Peter Peters
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Patent number: 9956534Abstract: The invention is related to a device for suspending particles in a fluid, wherein the mixing device includes a first magnet (1) rotating around a longitudinal axis (2), a mixing rod (4) attached to a mount (6), the mount including a second magnet (3), wherein the mount (6) moves in a substantially orthogonal motion to the longitudinal axis of the mixing rod (4) by the interaction of the rotating first magnet with the second magnet (3).Type: GrantFiled: August 14, 2017Date of Patent: May 1, 2018Assignee: Miltenyi Biotec, GmbHInventors: Dominik Hammerschmidt, Sven Ignatius, Martin Buscher, Ralf-Peter Peters
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Patent number: 9863865Abstract: A MEMS-based cell sorting system is disclosed, which uses a novel combination of features to accomplish the cell sorting in the microfabricated channels housed in a disposable cartridge. The MEMS-based cell sorting system may include a microfabricated cell sorting valve that is responsive to an applied magnetic field. The MEMS-based cell sorting system may further include an electromagnet that generates a magnetic field to actuate the microfabricated cell sorting valve. The electromagnet may have a design which allows it to create a very localized magnetic field while having adequate thermal properties to operate reliably.Type: GrantFiled: March 2, 2015Date of Patent: January 9, 2018Assignee: Owl biomedical, Inc.Inventors: John S Foster, Nicholas C. Martinez, Daryl W. Grummitt, Ralf-Peter Peters, Christian Peth, Markus Nagel
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Publication number: 20170361289Abstract: The invention is related to a device for suspending particles in a fluid, wherein the mixing device includes a first magnet (1) rotating around a longitudinal axis (2), a mixing rod (4) attached to a mount (6), the mount including a second magnet (3), wherein the mount (6) moves in a substantially orthogonal motion to the longitudinal axis of the mixing rod (4) by the interaction of the rotating first magnet with the second magnet (3).Type: ApplicationFiled: August 14, 2017Publication date: December 21, 2017Applicant: Miltenyi Biotec GmbHInventors: Dominik Hammerschmidt, Sven Ignatius, Martin Buscher, Ralf-Peter Peters
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Publication number: 20170165666Abstract: The invention relates to an apparatus for separating blood and at the same time an apparatus (1) for absorbing blood (19) and separating components such as blood plasma, as a sample liquid (2), having a feed device (13) for receiving the blood (2), a separating device (15) for separating blood components as the sample liquid (2), a channel (3) which takes up the sample liquid (2) preferably exclusively by capillary forces and a fill device for filling the channel (3) with sample liquid (2) in an inlet or feed region (18) of the channel (3), wherein the separating device (15), particularly a membrane, is domed, more particularly convexly shaped and projects with the apex of the convex shape into the filling device in the direction of filling.Type: ApplicationFiled: November 22, 2016Publication date: June 15, 2017Inventors: Gert BLANKENSTEIN, Holger BARTOS, Ralf-Peter PETERS, Christian SCHOEN
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Patent number: 9604214Abstract: A MEMS-based cell sorter is disclosed, which uses a novel combination of features to accomplish the cell sorting using a microfabricated cell sorting valve housed in a disposable cartridge. The features include an interposer that provides fluid communication between the microfluidic passages in the silicon substrate and a plurality of fluid reservoirs in the cartridge, including a sample, sort and waste reservoir The disposable cartridge may include other features that assist in the handling of small volumes of fluids, such as a siphon region in the sort reservoir and funnel-shaped regions in the sample and waste reservoirs. A mixing mechanism may be provided for stirring the contents of the sample reservoir.Type: GrantFiled: March 4, 2015Date of Patent: March 28, 2017Assignee: Owl biomedical, Inc.Inventors: John S Foster, Nicholas C. Martinez, Daryl W. Grummitt, Ralf-Peter Peters, Christian Peth, Markus Nagel
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Publication number: 20170067007Abstract: The invention is directed to disposable for electroporation of cells, comprising a fluid compartment in an interior of the disposable; a first fluid port for providing cell suspension to the fluid compartment, and a second fluid port for delivering a fluid comprising at least one compound to be electroporated into the cells to the fluid compartment; a first electrode and a second electrode disposed in the fluid compartment; at least one exit port which delivers the fluid from the fluid compartment wherein the first and second fluid port have a fluid communication to a mixing channel which has a fluid communication to the fluid compartment.Type: ApplicationFiled: August 31, 2016Publication date: March 9, 2017Applicant: Miltenyi Biotec GmbHInventors: Stefan Miltenyi, Jan Boddenberg, Eiad Kabaha, Ralf-Peter Peters
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Patent number: 9586213Abstract: A centrifuge chamber for separating a sample into at least two components, including a cylinder having a base plate and a cover plate, and a rotational axis assembly having at least one port for input and/or output of the sample, the port being connected to a tube located on or in the base plate and/or cover plate, and the tube having one or more openings into the centrifuge chamber, where at least one opening of the tube is provided with at least one flat-shaped deflector having a surface lying substantially parallel with the cylinder, and a width at its base of at most 1/10 of the inner circumference of the cylinder.Type: GrantFiled: April 23, 2013Date of Patent: March 7, 2017Assignee: Miltenyi Biotec GmbHInventors: Eiad Kabaha, Ralf-Peter Peters, Stefan Miltenyi, Juliane Stuth
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Patent number: 9539572Abstract: The invention relates to an apparatus for separating blood, more particularly an apparatus (1) for absorbing blood (19) and separating blood components, e.g. blood plasma, as a sample liquid (2). Said apparatus (1) comprises a feeding device (13) for absorbing the blood (2), a device (15) for separating blood components as a sample liquid (2), a duct which preferably absorbs the sample liquid (2) exclusively by means of capillary forces, and a device for filling the duct (3) with sample liquid (2) in an inlet or feeding zone (18) of the duct (3). The separating device (15), in particular a membrane, is curved, especially convexly shaped, and the apex of said curved, especially convex shape projects into the filling device.Type: GrantFiled: February 26, 2009Date of Patent: January 10, 2017Assignee: Boehringer Ingelheim Microparts GmbHInventors: Gert Blankenstein, Holger Bartos, Ralf-Peter Peters, Christian Schoen
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Publication number: 20160264919Abstract: The invention is directed to a centrifuge chamber comprising a cylinder having a base plate and a cover plate, a rotational axis with at least one port for input and/or output of liquids, at least one port for input of gases and at least one layer for cell culturing, wherein the layer for cell culturing comprises a gas-permeable membrane on which cells can be cultured and wherein the at least one port for input and/or output of gases is connected to the gas-permeable membrane.Type: ApplicationFiled: May 23, 2016Publication date: September 15, 2016Applicant: Miltenyi Biotec GmbHInventors: Eiad Kabaha, Stefan Miltenyi, Ralf-Peter Peters
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Publication number: 20150367346Abstract: A MEMS-based cell sorter is disclosed, which uses a novel combination of features to accomplish the cell sorting using a microfabricated cell sorting valve housed in a disposable cartridge. The features include an interposer that provides fluid communication between the microfluidic passages in the silicon substrate and a plurality of fluid reservoirs in the cartridge, including a sample, sort and waste reservoir The disposable cartridge may include other features that assist in the handling of small volumes of fluids, such as a siphon region in the sort reservoir and funnel-shaped regions in the sample and waste reservoirs. A mixing mechanism may be provided for stirring the contents of the sample reservoir.Type: ApplicationFiled: March 4, 2015Publication date: December 24, 2015Applicant: Owl biomedical, Inc.Inventors: John S. FOSTER, Nicholas C. Martinez, Daryl Grummitt, Ralf-Peter Peters, Christian Peth, Markus Nagel
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Publication number: 20150328605Abstract: The invention is related to a device for suspending particles in a fluid, wherein the mixing device includes a first magnet (1) rotating around a longitudinal axis (2), a mixing rod (4) attached to a mount (6), the mount including a second magnet (3), wherein the mount (6) moves in a substantially orthogonal motion to the longitudinal axis of the mixing rod (4) by the interaction of the rotating first magnet with the second magnet (3).Type: ApplicationFiled: May 6, 2015Publication date: November 19, 2015Applicant: Miltenyi Biotec GmbHInventors: Dominik Hammerschmidt, Sven Ignatius, Martin Buscher, Ralf-Peter Peters