Patents by Inventor David Zahniser
David Zahniser 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: 12117381Abstract: The apparatus disclosed herein features a substrate arm and gripper, a platform having a top surface located opposite the substrate when the substrate arm is in a specimen processing position and featuring at least one fluid port located on a surface of the platform facing the substrate and at least one vacuum port located on the surface of the platform facing the substrate, and during operation, the apparatus is configured to (a) dispense a first quantity of fluid from the at least one fluid port to fill a separation between the substrate and the platform, (b) dispense an additional quantity of fluid from the at least one fluid port into the separation to displace a portion of the first quantity of fluid, and (c) remove the portion of the first quantity of fluid from the separation through the at least one vacuum port.Type: GrantFiled: February 12, 2018Date of Patent: October 15, 2024Assignee: Roche Diagnostics Hematology, Inc.Inventors: Daniel Lapen, David Zahniser, Mark Licari, Brian J. McKeen, Eric D. Yeaton, Dennis Poole, Stephen Conroy
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Patent number: 11933711Abstract: Methods and systems for displaying images of cells in a sample include obtaining a plurality of images of cells in the sample, where each image corresponds to one of the cells in the sample, determining values of at least one property for each of the cells based on the plurality of images, arranging the plurality of images to form a first image array, where the images are ordered in the first image array based on the values of the at least one property, displaying the first image array, sorting the plurality of images to form a second image array in which an ordering of the images is different from the first image array, and displaying the second image array, where the sample includes blood and the cells include red blood cells.Type: GrantFiled: October 20, 2020Date of Patent: March 19, 2024Assignee: Roche Diagnostics Hematology, Inc.Inventors: David Zahniser, Michael Zahniser, Adam Yie
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Publication number: 20210239595Abstract: Methods and systems for displaying images of cells in a sample include obtaining a plurality of images of cells in the sample, where each image corresponds to one of the cells in the sample, determining values of at least one property for each of the cells based on the plurality of images, arranging the plurality of images to form a first image array, where the images are ordered in the first image array based on the values of the at least one property, displaying the first image array, sorting the plurality of images to form a second image array in which an ordering of the images is different from the first image array, and displaying the second image array, where the sample includes blood and the cells include red blood cells.Type: ApplicationFiled: October 20, 2020Publication date: August 5, 2021Inventors: David Zahniser, Michael Zahniser, Adam Yie
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Patent number: 11047791Abstract: Methods and systems for displaying images of cells in a sample include obtaining a plurality of images of cells in the sample, where each image corresponds to one of the cells in the sample, determining values of at least one property for each of the cells based on the plurality of images, arranging the plurality of images to form a first image array, where the images are ordered in the first image array based on the values of the at least one property, displaying the first image array, sorting the plurality of images to form a second image array in which an ordering of the images is different from the first image array, and displaying the second image array, where the sample includes blood and the cells include red blood cells.Type: GrantFiled: June 18, 2012Date of Patent: June 29, 2021Assignee: Roche Diagnostics Hematology, Inc.Inventors: David Zahniser, Michael Zahniser, Adam Yie
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Patent number: 10775282Abstract: The systems and methods disclosed herein permit automated preparation of biological specimens for examination. The disclosed systems and methods provide fast, efficient, and highly uniform specimen processing using minimal quantities of fluids. The methods include at least a fixing phase for fixing a biological specimen to a substrate such as a microscope slide, a staining phase for staining the specimen, and a rinsing phase for rinsing the specimen. One or more of the fixing, staining, and rinsing phases include one or more agitation cycles for distributing reagents evenly and uniformly across the specimen. The systems can be implemented as a standalone device or as a component in a larger system for preparing and examining biological specimens.Type: GrantFiled: December 21, 2018Date of Patent: September 15, 2020Assignee: Roche Diagnostics Hematology, IncInventors: Daniel Lapen, David Zahniser, Mark Licari, Brian McKeen, Eric D. Yeaton, Dennis Poole
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Patent number: 10764538Abstract: Systems and methods analyzing body fluids contain cells including blood, bone marrow, urine, vaginal tissue, epithelial tissue, tumors, semen, and spittle are disclosed. The systems and methods utilize an improved technique for applying a monolayer of cells to a slide and generating a substantially uniform distribution of cells on the slide. Additionally aspects of the invention also relate to systems and method for utilizing multi-color microscopy for improving the quality of images captured by a light receiving device.Type: GrantFiled: March 20, 2017Date of Patent: September 1, 2020Assignee: Roche Diagnostics Hematology, Inc.Inventors: James Winkelman, Milenko Tanasijevic, David Zahniser, James Linder
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Publication number: 20200064238Abstract: Methods for dispensing a fluid sample on a substrate include obtaining an image of a sample applicator in proximity to the substrate, where the image includes a first image of the sample applicator and a second image of the sample applicator, determining a height of the sample applicator relative to a surface plane of the substrate based on a distance between common portions of the first and second images, and dispensing the fluid sample onto the substrate using the sample applicator, where the dispensing includes: translating the sample applicator, translating the substrate, or translating both the sample applicator and the substrate to effect a relative translation between the sample applicator and the substrate; and maintaining the sample applicator within 2 microns of a target height relative to the surface plane of the substrate during the translating.Type: ApplicationFiled: November 4, 2019Publication date: February 27, 2020Inventors: Russell Zahniser, David Zahniser, Stephen Conroy, Michael Zahniser
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Patent number: 10466146Abstract: Methods for dispensing a fluid sample on a substrate include obtaining an image of a sample applicator in proximity to the substrate, where the image includes a first image of the sample applicator and a second image of the sample applicator, determining a height of the sample applicator relative to a surface plane of the substrate based on a distance between common portions of the first and second images, and dispensing the fluid sample onto the substrate using the sample applicator, where the dispensing includes: translating the sample applicator, translating the substrate, or translating both the sample applicator and the substrate to effect a relative translation between the sample applicator and the substrate; and maintaining the sample applicator within 2 microns of a target height relative to the surface plane of the substrate during the translating.Type: GrantFiled: October 6, 2017Date of Patent: November 5, 2019Assignee: Roche Diagnostics Hematology, Inc.Inventors: Russell Zahniser, David Zahniser, Stephen Conroy, Michael Zahniser
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Patent number: 10345205Abstract: Sample application systems can include an extraction mechanism to remove a sample from sample containers, a sample vessel disposed on a deployment mechanism, where the deployment mechanism is arranged to move the sample vessel to receive a sample, an extraction mechanism washing station to wash the extraction mechanism, a sample applicator to remove a portion of the sample in the sample vessel and apply it onto a sample carrier, where the deployment mechanism can move the sample vessel to a sample application position, a sample vessel washing station to wash the sample vessel, where the deployment mechanism can move the sample vessel to the sample vessel washing station, a sample applicator washing station to wash the sample applicator after the sample has been dispensed onto the sample carrier, and a fluid control system to control flow of a fluid provided to the extraction mechanism and the sample applicator.Type: GrantFiled: March 6, 2017Date of Patent: July 9, 2019Assignee: Roche Diagnostics Hematology, Inc.Inventors: Brian J. McKeen, Eric D. Yeaton, James L. Dowling, David Zahniser, Stephen Conroy
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Publication number: 20190120736Abstract: The systems and methods disclosed herein permit automated preparation of biological specimens for examination. The disclosed systems and methods provide fast, efficient, and highly uniform specimen processing using minimal quantities of fluids. The methods include at least a fixing phase for fixing a biological specimen to a substrate such as a microscope slide, a staining phase for staining the specimen, and a rinsing phase for rinsing the specimen. One or more of the fixing, staining, and rinsing phases include one or more agitation cycles for distributing reagents evenly and uniformly across the specimen. The systems can be implemented as a standalone device or as a component in a larger system for preparing and examining biological specimens.Type: ApplicationFiled: December 21, 2018Publication date: April 25, 2019Inventors: Daniel Lapen, David Zahniser, Mark Licari, Brian McKeen, Eric D. Yeaton, Dennis Poole
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Patent number: 10175153Abstract: The systems and methods disclosed herein permit automated preparation of biological specimens for examination. The disclosed systems and methods provide fast, efficient, and highly uniform specimen processing using minimal quantities of fluids. The methods include at least a fixing phase for fixing a biological specimen to a substrate such as a microscope slide, a staining phase for staining the specimen, and a rinsing phase for rinsing the specimen. One or more of the fixing, staining, and rinsing phases include one or more agitation cycles for distributing reagents evenly and uniformly across the specimen. The systems can be implemented as a standalone device or as a component in a larger system for preparing and examining biological specimens.Type: GrantFiled: August 24, 2015Date of Patent: January 8, 2019Assignee: Roche Diagnostics Hematology, Inc.Inventors: Daniel Lapen, David Zahniser, Mark Licari, Brian J. McKeen, Eric D. Yeaton, Dennis Poole
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Systems and methods for determining a complete blood count and a white blood cell differential count
Patent number: 10094764Abstract: Systems and methods analyzing body fluids such as blood and bone marrow are disclosed. The systems and methods may utilize an improved technique for applying a monolayer of cells to a slide to generate a substantially uniform distribution of cells on the slide. Additionally aspects of the invention also relate to systems and methods for utilizing multi color microscopy for improving the quality of images captured by a light receiving device.Type: GrantFiled: April 27, 2015Date of Patent: October 9, 2018Assignee: Roche Diagnostics Hematology, Inc.Inventors: James Winkelman, Milenko Tanasijevic, David Zahniser -
Patent number: 10083342Abstract: This document describes methods, systems and computer program products directed to imaging blood cells. The subject matter described in this document can be embodied in a method of classifying white blood cells (WBCs) in a biological sample on a substrate. The method includes acquiring, by an image acquisition device, a plurality of images of a first location on the substrate, and classifying, by a processor, objects in the plurality of images into WBC classification groups. The method also includes identifying, by a processor, objects from at least some classification groups, as unclassified objects, and displaying, on a user interface, the unclassified objects and at least some of the classified objects.Type: GrantFiled: June 26, 2017Date of Patent: September 25, 2018Assignee: Roche Diagnostics Hematology, Inc.Inventors: Michael Zahniser, Kam Lin Wong, David Zahniser, Robert Hohlfeld
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Publication number: 20180238781Abstract: The apparatus disclosed herein features a substrate arm and gripper, a platform having a top surface located opposite the substrate when the substrate arm is in a specimen processing position and featuring at least one fluid port located on a surface of the platform facing the substrate and at least one vacuum port located on the surface of the platform facing the substrate, and during operation, the apparatus is configured to (a) dispense a first quantity of fluid from the at least one fluid port to fill a separation between the substrate and the platform, (b) dispense an additional quantity of fluid from the at least one fluid port into the separation to displace a portion of the first quantity of fluid, and (c) remove the portion of the first quantity of fluid from the separation through the at least one vacuum port.Type: ApplicationFiled: February 12, 2018Publication date: August 23, 2018Inventors: Daniel Lapen, David Zahniser, Mark Licari, Brian J. McKeen, Eric D. Yeaton, Dennis Poole, Stephen Conroy
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Patent number: 9891147Abstract: The apparatus disclosed herein features a substrate arm and gripper, a platform having a top surface located opposite the substrate when the substrate arm is in a specimen processing position and featuring at least one fluid port located on a surface of the platform facing the substrate and at least one vacuum port located on the surface of the platform facing the substrate, and during operation, the apparatus is configured to (a) dispense a first quantity of fluid from the at least one fluid port to fill a separation between the substrate and the platform, (b) dispense an additional quantity of fluid from the at least one fluid port into the separation to displace a portion of the first quantity of fluid, and (c) remove the portion of the first quantity of fluid from the separation through the at least one vacuum port.Type: GrantFiled: April 4, 2014Date of Patent: February 13, 2018Assignee: Roche Diagnostics Hematology, Inc.Inventors: Daniel Lapen, David Zahniser, Mark Licari, Brian J. McKeen, Eric D. Yeaton, Dennis Poole, Stephen Conroy
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Publication number: 20180031451Abstract: Methods for dispensing a fluid sample on a substrate include obtaining an image of a sample applicator in proximity to the substrate, where the image includes a first image of the sample applicator and a second image of the sample applicator, determining a height of the sample applicator relative to a surface plane of the substrate based on a distance between common portions of the first and second images, and dispensing the fluid sample onto the substrate using the sample applicator, where the dispensing includes: translating the sample applicator, translating the substrate, or translating both the sample applicator and the substrate to effect a relative translation between the sample applicator and the substrate; and maintaining the sample applicator within 2 microns of a target height relative to the surface plane of the substrate during the translating.Type: ApplicationFiled: October 6, 2017Publication date: February 1, 2018Inventors: Russell Zahniser, David Zahniser, Stephen Conroy, Michael Zahniser
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Publication number: 20180012062Abstract: This document describes methods, systems and computer program products directed to imaging blood cells. The subject matter described in this document can be embodied in a method of classifying white blood cells (WBCs) in a biological sample on a substrate. The method includes acquiring, by an image acquisition device, a plurality of images of a first location on the substrate, and classifying, by a processor, objects in the plurality of images into WBC classification groups. The method also includes identifying, by a processor, objects from at least some classification groups, as unclassified objects, and displaying, on a user interface, the unclassified objects and at least some of the classified objects.Type: ApplicationFiled: June 26, 2017Publication date: January 11, 2018Applicant: Roche Diagnostics Hematology, Inc.Inventors: Michael Zahniser, Kam Lin Wong, David Zahniser, Robert Hohlfeld
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Publication number: 20180007319Abstract: Systems and methods analyzing body fluids contain cells including blood, bone marrow, urine, vaginal tissue, epithelial tissue, tumors, semen, and spittle are disclosed. The systems and methods utilize an improved technique for applying a monolayer of cells to a slide and generating a substantially uniform distribution of cells on the slide. Additionally aspects of the invention also relate to systems and method for utilizing multi-color microscopy for improving the quality of images captured by a light receiving device.Type: ApplicationFiled: March 20, 2017Publication date: January 4, 2018Inventors: James Winkelman, Milenko Tanasijevic, David Zahniser, James Linder
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Patent number: 9784652Abstract: Methods for dispensing a fluid sample on a substrate include obtaining an image of a sample applicator in proximity to the substrate, where the image includes a first image of the sample applicator and a second image of the sample applicator, determining a height of the sample applicator relative to a surface plane of the substrate based on a distance between common portions of the first and second images, and dispensing the fluid sample onto the substrate using the sample applicator, where the dispensing includes: translating the sample applicator, translating the substrate, or translating both the sample applicator and the substrate to effect a relative translation between the sample applicator and the substrate; and maintaining the sample applicator within 2 microns of a target height relative to the surface plane of the substrate during the translating.Type: GrantFiled: February 22, 2016Date of Patent: October 10, 2017Assignee: Roche Diagnostics Hematology, Inc.Inventors: Russell Zahniser, David Zahniser, Stephen Conroy, Michael Zahniser
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Publication number: 20170241875Abstract: Sample application systems can include an extraction mechanism to remove a sample from sample containers, a sample vessel disposed on a deployment mechanism, where the deployment mechanism is arranged to move the sample vessel to receive a sample, an extraction mechanism washing station to wash the extraction mechanism, a sample applicator to remove a portion of the sample in the sample vessel and apply it onto a sample carrier, where the deployment mechanism can move the sample vessel to a sample application position, a sample vessel washing station to wash the sample vessel, where the deployment mechanism can move the sample vessel to the sample vessel washing station, a sample applicator washing station to wash the sample applicator after the sample has been dispensed onto the sample carrier, and a fluid control system to control flow of a fluid provided to the extraction mechanism and the sample applicator.Type: ApplicationFiled: March 6, 2017Publication date: August 24, 2017Inventors: Brian J. McKeen, Eric D. Yeaton, James L. Dowling, David Zahniser, Stephen Conroy