Patents by Inventor Cristian Ionescu-Zanetti

Cristian Ionescu-Zanetti 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: 11098352
    Abstract: The invention discloses diagnostic techniques based on single cell genomics, consisting of obtaining a blood sample, enriching a sub-population of cells present in the blood sample, sequestering individual cells or group of cells from the blood sample, obtaining sequencing data from the sequestered cells or group of cells, using genetic variant information to determine the provenance of the cells, and genetically analyzing the cells of the correct provenance to provide a diagnostic readout. Using the cell-based testing techniques of the invention, the number of false positives is greatly reduced when compared to cell-free DNA (cfDNA) based traditional testing techniques. The invention may be effectively employed for non-invasive prenatal (NIPT) diagnostics, oncological testing and other diagnostic procedures.
    Type: Grant
    Filed: November 27, 2018
    Date of Patent: August 24, 2021
    Assignee: Fluxion Biosciences, Inc.
    Inventors: Cristian Ionescu-Zanetti, Jeff Jensen, Michael Schwartz
  • Patent number: 10294518
    Abstract: The invention discloses methods and apparatuses for the detection and diagnostics of genetic alterations/mutations in a target sample, which may be a solid tissue or a bodily fluid. A reference sample is also acquired, and the target and reference samples are replicated into multiple target and reference replicates. The replicates are sequenced, and the sequence data is analyzed based on a statistical test. The statistical test compares the measurements between the target and reference replicates at respective allelic indices. True positive calls are then made based on the results of the statistical testing, and the desired genetic alterations/mutations are identified at the base-pair level. The invention may be used for diagnostics related to cancer, auto-immune disease, organ transplant rejection, genetic fetal abnormalities and pathogens.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: May 21, 2019
    Assignee: Fluxion Biosciences, Inc.
    Inventors: Nicholas Kamps-Hughes, Cristian Ionescu-Zanetti
  • Publication number: 20190093158
    Abstract: The invention discloses diagnostic techniques based on single cell genomics, consisting of obtaining a blood sample, enriching a sub-population of cells present in the blood sample, sequestering individual cells or group of cells from the blood sample, obtaining sequencing data from the sequestered cells or group of cells, using genetic variant information to determine the provenance of the cells, and genetically analyzing the cells of the correct provenance to provide a diagnostic readout. Using the cell-based testing techniques of the invention, the number of false positives is greatly reduced when compared to cell-free DNA (cfDNA) based traditional testing techniques. The invention may be effectively employed for non-invasive prenatal (NIPT) diagnostics, oncological testing and other diagnostic procedures.
    Type: Application
    Filed: November 27, 2018
    Publication date: March 28, 2019
    Inventors: Cristian Ionescu-Zanetti, Jeff Jensen, Michael Schwartz
  • Patent number: 10240186
    Abstract: Methods, microfluidic devices, and instruments for magnetic separation of particles from a fluid are described. Examples include microfluidic devices having a removable portion. Examples include microfluidic devices having one or more regions of reduced fluid velocity. Examples further including instruments having pneumatic interfaces. Examples further includes instruments having controllable magnets, imaging components, or combinations thereof.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: March 26, 2019
    Assignee: FLUXION BIOSCIENCES, INC.
    Inventors: Cristian Ionescu-Zanetti, Joshua Tanner Nevill, Michael Schwartz, Carolyn G. Conant, Roger Rudoff
  • Patent number: 10167502
    Abstract: The invention discloses diagnostic techniques based on single cell genomics, consisting of obtaining a blood sample, enriching a sub-population of cells present in the blood sample, sequestering individual cells or group of cells from the blood sample, obtaining sequencing data from the sequestered cells or group of cells, using genetic variant information to determine the provenance of the cells, and genetically analyzing the cells of the correct provenance to provide a diagnostic readout. Using the cell-based testing techniques of the invention, the number of false positives is greatly reduced when compared to cell-free DNA (cfDNA) based traditional testing techniques. The invention may be effectively employed for non-invasive prenatal (NIPT) diagnostics, oncological testing and other diagnostic procedures.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 1, 2019
    Assignee: Fluxion Biosciences, Inc.
    Inventors: Cristian Ionescu-Zanetti, Jeff Jensen, Michael Schwartz
  • Publication number: 20180080068
    Abstract: The invention discloses methods and apparatuses for the detection and diagnostics of genetic alterations/mutations in a target sample, which may be a solid tissue or a bodily fluid. A reference sample is also acquired, and the target and reference samples are replicated into multiple target and reference replicates. The replicates are sequenced, and the sequence data is analyzed based on a statistical test. The statistical test compares the measurements between the target and reference replicates at respective allelic indices. True positive calls are then made based on the results of the statistical testing, and the desired genetic alterations/mutations are identified at the base-pair level. The invention may be used for diagnostics related to cancer, auto-immune disease, organ transplant rejection, genetic fetal abnormalities and pathogens.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 22, 2018
    Inventors: Nicholas Kamps-Hughes, Cristian Ionescu-Zanetti
  • Publication number: 20170268037
    Abstract: A method is provided including coupling magnetic beads to a population of cells in a fluid sample to form magnetically-labeled cells, magnetically separating the magnetically-labeled cells from non-magnetically-labeled cells in the fluid sample, and separating target cells from non-target cells of the magnetically-labeled cells based on a size difference between the magnetically-labeled target cells and the magnetically-labeled non-target cells. A microfluidic device is provided including a fluidic pathway traversing a magnetic isolation region and a size-based isolation region. The magnetic isolation region includes a magnet positioned to separate magnetically-labeled cells from non-magnetically labeled cells in the magnetic isolation region. The size-based isolation region includes a separator configured to separate cells less than a threshold size from cells greater than a threshold size.
    Type: Application
    Filed: May 15, 2015
    Publication date: September 21, 2017
    Applicant: FLUXION BIOSCIENCES, INC.
    Inventors: CRISTIAN IONESCU-ZANETTI, MICHAEL SCHWARTZ, CHRISTINE TING FU, RONG ANDREA FAN
  • Publication number: 20160289754
    Abstract: The invention discloses diagnostic techniques based on single cell genomics, consisting of obtaining a blood sample, enriching a sub-population of cells present in the blood sample, sequestering individual cells or group of cells from the blood sample, obtaining sequencing data from the sequestered cells or group of cells, using genetic variant information to determine the provenance of the cells, and genetically analyzing the cells of the correct provenance to provide a diagnostic readout. Using the cell-based testing techniques of the invention, the number of false positives is greatly reduced when compared to cell-free DNA (cfDNA) based traditional testing techniques. The invention may be effectively employed for non-invasive prenatal (NIPT) diagnostics, oncological testing and other diagnostic procedures.
    Type: Application
    Filed: March 31, 2016
    Publication date: October 6, 2016
    Inventors: Cristian Ionescu-Zanetti, Jeff Jensen, Michael Schwartz
  • Publication number: 20160161392
    Abstract: Apparatus and methods are provided for analysis of individual particles in a microfluidic device. The methods involve the immobilization of an array of particles in suspension and the application of experimental compounds. Such methods can also include electrophysiology studies including patch clamp recording, electroporation, or both in the same microfluidic device. The apparatus provided includes a microfluidic device coupled to a multi-well structure and an interface for controlling the flow of media within the microchannel device.
    Type: Application
    Filed: October 20, 2015
    Publication date: June 9, 2016
    Inventors: CRISTIAN IONESCU-ZANETTI, MICHELLE KHINE, MICHAEL SCHWARTZ
  • Publication number: 20130017538
    Abstract: Methods, microfluidic devices, and instruments for magnetic separation of particles from a fluid are described. Examples include microfluidic devices having a removable portion. Examples include microfluidic devices having one or more regions of reduced fluid velocity. Examples further including instruments having pneumatic interfaces. Examples further includes instruments having controllable magnets, imaging components, or combinations thereof.
    Type: Application
    Filed: July 14, 2011
    Publication date: January 17, 2013
    Applicant: Fluxion Biosciences Inc.
    Inventors: Cristian Ionescu-Zanetti, Joshua Tanner Nevill, Michael Schwartz, Carolyn G. Conant, Roger Rudoff
  • Patent number: 8293524
    Abstract: Apparatus and methods are provided for analysis of individual particles in a microfluidic device. The methods involve the immobilization of an array of particles in suspension and the application of experimental compounds. Such methods can also include electrophysiology studies including patch clamp recording, electroporation, or both in the same microfluidic device. The apparatus provided includes a microfluidic device coupled to a multi-well structure and an interface for controlling the flow of media within the microchannel device.
    Type: Grant
    Filed: March 25, 2007
    Date of Patent: October 23, 2012
    Assignee: Fluxion Biosciences Inc.
    Inventors: Cristian Ionescu-Zanetti, Michelle Khine, Michael Schwartz, Andrew Blatz
  • Publication number: 20120264134
    Abstract: Apparatus and methods are provided for analysis of individual particles in a microfluidic device. The methods involve the immobilization of an array of particles in suspension and the application of experimental compounds. Such methods can also include electrophysiology studies including patch clamp recording, electroporation, or both in the same microfluidic device. The apparatus provided includes a microfluidic device coupled to a multi-well structure and an interface for controlling the flow of media within the microchannel device.
    Type: Application
    Filed: April 24, 2012
    Publication date: October 18, 2012
    Applicant: Fluxion Biosciences Inc.
    Inventors: Cristian Ionescu-Zanetti, Michelle Khine, Michael Schwartz
  • Publication number: 20120135887
    Abstract: Method and systems provide improved cell handling in microfluidic systems and devices using lateral cell trapping and methods of fabrication of the same that allow for selective low voltage electroporation and electrofusion.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 31, 2012
    Applicant: The Regents of the University of California
    Inventors: Luke P. Lee, Jeonggi Seo, Cristian Ionescu-Zanetti, Michelle Khine, Adrian Lau
  • Patent number: 8058056
    Abstract: Method and systems provide improved cell handling in microfluidic systems and devices using lateral cell trapping and methods of fabrication of the same that allow for selective low voltage electroporation and electrofusion.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: November 15, 2011
    Assignee: The Regents of the University of California
    Inventors: Luke P. Lee, Jeonggi Seo, Cristian Ionescu-Zanetti, Michelle Khine, Adrian Lau
  • Publication number: 20110045582
    Abstract: Method and systems that provide improved cell handling and assays in microfluidic systems and devices particularly using lateral cell trapping and methods of fabrication of the same.
    Type: Application
    Filed: March 14, 2005
    Publication date: February 24, 2011
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Luke P. Lee, Jeonggi Seo, Cristian Ionescu-Zanetti, Michelle Khine, Poorya Sabounchi, Robin Shaw
  • Publication number: 20070243523
    Abstract: Apparatus and methods are provided for analysis of individual particles in a microfluidic device. The methods involve the immobilization of an array of particles in suspension and the application of experimental compounds. Such methods can also include electrophysiology studies including patch clamp recording, electroporation, or both in the same microfluidic device. The apparatus provided includes a microfluidic device coupled to a multi-well structure and an interface for controlling the flow of media within the microchannel device.
    Type: Application
    Filed: March 25, 2007
    Publication date: October 18, 2007
    Inventors: Cristian Ionescu-Zanetti, Michelle Khine, Michael Schwartz, Andrew Blatz
  • Publication number: 20070155016
    Abstract: Method and systems provide improved cell handling in microfluidic systems and devices using lateral cell trapping and methods of fabrication of the same that allow for selective low voltage electroporation and electrofusion.
    Type: Application
    Filed: August 21, 2006
    Publication date: July 5, 2007
    Inventors: Luke Lee, Jeonggi Seo, Cristian Ionescu-Zanetti, Michelle Khine, Adrian Lau
  • Publication number: 20070028683
    Abstract: A pressure sensing device and method for sensing pressure utilizes a deformable cavity containing a conductive medium. Pressure changes induce deformations of the cavity, resulting in changes of conductivity, as measured by electrodes. The device may either sense pressure directly or may be used to sense the pressure in a separate cavity that is in close proximity. Since the measurements do not require electrodes in the sensing region, the device is simple to fabricate. The device also has high sensitivity, making it suitable for microfluidic or biomedical applications where a low profile and disposable device is required.
    Type: Application
    Filed: June 7, 2006
    Publication date: February 8, 2007
    Inventor: Cristian Ionescu-Zanetti