Patents by Inventor Wendian Shi

Wendian Shi 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: 11933701
    Abstract: Devices and methods for analyzing a sample are disclosed. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample and conducting sample analysis. In various embodiments, the present disclosure provides a cartridge device and a reader instrument device. The reader instrument device receives, operates, and/or actuates the cartridge device to prepare a serial dilution of a sample and conduct sample analysis.
    Type: Grant
    Filed: April 29, 2023
    Date of Patent: March 19, 2024
    Assignee: CytoChip Inc.
    Inventors: Wendian Shi, Yuan Gao, Yuzhe Ding
  • Publication number: 20230417643
    Abstract: The disclosure provides devices, device systems, and methods for analyzing cells (e.g., blood cells) or particles in a sample. In some embodiments, the disclosure provides various devices and device systems including: a light source; a collecting lens; and one, two, or more detectors. In other embodiments, the devices and device systems include a flow cell or a cartridge device with a flow cell. In further embodiments, the disclosure provides various methods including the steps of: using a light source to emit an irradiation light; using the irradiation light to illuminate a sample flow; using a collecting lens to collect both scattered light and fluorescent light from the sample flow; and using one, two, or more detectors to detect the collected scattered light and fluorescent light. Optionally, these methods include using a flow cell to form a sample flow.
    Type: Application
    Filed: August 8, 2023
    Publication date: December 28, 2023
    Applicant: CytoChip Inc.
    Inventor: Wendian Shi
  • Publication number: 20230321654
    Abstract: A method for analyzing biological samples is disclosed herein. In an embodiment, the method includes receiving a fluid sample into a cartridge device, which comprises: a fluidic chamber; at least one microfluidic channel in fluid communication with the fluidic chamber; and a venting port configured to apply a pneumatic force to the fluidic chamber; and inserting the cartridge device into a reader device to perform measurements, wherein the cartridge device is positioned in a vertical or tilted position such that at least a portion of the fluid sample inside the fluidic chamber is pulled by gravity in a direction away from the venting port or towards the bottom of the fluidic chamber.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Applicant: CytoChip, Inc.
    Inventors: Wendian Shi, Yuzhe Ding
  • Patent number: 11768143
    Abstract: The disclosure provides devices, device systems, and methods for analyzing cells (e.g., blood cells) or particles in a sample. In some embodiments, the disclosure provides various devices and device systems including: a light source; a collecting lens; and one, two, or more detectors. In other embodiments, the devices and device systems include a flow cell or a cartridge device with a flow cell. In further embodiments, the disclosure provides various methods including the steps of: using a light source to emit an irradiation light; using the irradiation light to illuminate a sample flow; using a collecting lens to collect both scattered light and fluorescent light from the sample flow; and using one, two, or more detectors to detect the collected scattered light and fluorescent light. Optionally, these methods include using a flow cell to form a sample flow.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: September 26, 2023
    Assignee: CytoChip Inc.
    Inventor: Wendian Shi
  • Publication number: 20230266205
    Abstract: Devices and methods for analyzing a sample are disclosed. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample and conducting sample analysis. In various embodiments, the present disclosure provides a cartridge device and a reader instrument device. The reader instrument device receives, operates, and/or actuates the cartridge device to prepare a serial dilution of a sample and conduct sample analysis.
    Type: Application
    Filed: April 29, 2023
    Publication date: August 24, 2023
    Applicant: CytoChip, Inc.
    Inventors: Wendian Shi, Yuan Gao, Yuzhe Ding
  • Patent number: 11717824
    Abstract: A method for analyzing biological samples is disclosed herein. In an embodiment, the method includes receiving a fluid sample into a cartridge device, which comprises: a fluidic chamber; at least one microfluidic channel in fluid communication with the fluidic chamber; and a venting port configured to apply a pneumatic force to the fluidic chamber; and inserting the cartridge device into a reader device to perform measurements, wherein the cartridge device is positioned in a vertical or tilted position such that at least a portion of the fluid sample inside the fluidic chamber is pulled by gravity in a direction away from the venting port or towards the bottom of the fluidic chamber.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: August 8, 2023
    Assignee: CytoChip Inc.
    Inventors: Wendian Shi, Yuzhe Ding
  • Patent number: 11674869
    Abstract: Devices and methods for analyzing a sample are disclosed. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample and conducting sample analysis. In various embodiments, the present disclosure provides a cartridge device and a reader instrument device. The reader instrument device receives, operates, and/or actuates the cartridge device to prepare a serial dilution of a sample and conduct sample analysis.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: June 13, 2023
    Assignee: CYTOCHIP, INC.
    Inventors: Wendian Shi, Yuan Gao, Yuzhe Ding
  • Publication number: 20230018591
    Abstract: Devices and methods for measuring analytes and target particles in a sample are disclosed. In some embodiments, the disclosure provides a cartridge device. In other embodiments, the disclosure provides a method of using a cartridge device as disclosed herein for analyzing analytes and target particles in a sample. In further embodiments, the disclosure provides an analyzer including a cartridge device and a control unit device. The control unit device is configured to receive, operate, and/or actuate the cartridge device. In some embodiments, the disclosure provides a method of using an analyzer as disclosed herein for analyzing analytes and target particles in a sample.
    Type: Application
    Filed: September 20, 2022
    Publication date: January 19, 2023
    Applicant: CYTOCHIP INC.
    Inventors: Wendian Shi, Yuzhe Ding, Yuan Gao
  • Patent number: 11491487
    Abstract: Devices and methods for measuring analytes and target particles in a sample are disclosed. In some embodiments, the disclosure provides a cartridge device. In other embodiments, the disclosure provides a method of using a cartridge device as disclosed herein for analyzing analytes and target particles in a sample. In further embodiments, the disclosure provides an analyzer including a cartridge device and a control unit device. The control unit device is configured to receive, operate, and/or actuate the cartridge device. In some embodiments, the disclosure provides a method of using an analyzer as disclosed herein for analyzing analytes and target particles in a sample.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: November 8, 2022
    Assignee: CytoChip Inc.
    Inventors: Wendian Shi, Yuzhe Ding, Yuan Gao
  • Publication number: 20220314224
    Abstract: The present disclosure relates to new types of fluid packaging devices and methods of making and using such fluid packaging devices. In various embodiments, the present disclosure provides devices, systems, and methods for packaging fluids. In various embodiments, the present disclosure provides a device including a storage compartment; a fluid stored in the storage compartment; a first aperture on the storage compartment; and a second aperture on the storage compartment. The first aperture is initially sealed or closed before the use of the device and configured to be opened to receive a pneumatic pressure. The second aperture is initially sealed or closed before the use of the device and configured to be opened to allow the fluid to exit or enter the storage compartment via the opened second aperture.
    Type: Application
    Filed: June 22, 2022
    Publication date: October 6, 2022
    Applicant: CytoChip Inc.
    Inventors: Wendian Shi, Yuzhe Ding
  • Patent number: 11400453
    Abstract: The present disclosure relates to new types of fluid packaging devices and methods of making and using such fluid packaging devices. In various embodiments, the present disclosure provides devices, systems, and methods for packaging fluids. In various embodiments, the present disclosure provides a device including a storage compartment; a fluid stored in the storage compartment; a first aperture on the storage compartment; and a second aperture on the storage compartment. The first aperture is initially sealed or closed before the use of the device and configured to be opened to receive a pneumatic pressure. The second aperture is initially sealed or closed before the use of the device and configured to be opened to allow the fluid to exit or enter the storage compartment via the opened second aperture.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: August 2, 2022
    Assignee: CytoChip Inc.
    Inventors: Wendian Shi, Yuzhe Ding
  • Publication number: 20220205897
    Abstract: Methods and devices for correction in particle size measurement are disclosed. In some embodiments, a method includes the following steps: (1) measuring a signal from a target particle and a reference particle in a cartridge device; (2) analyzing the measured signal to obtain signal information of the target particle and signal information of the reference particle; and (3) determining size information of the target particle by correcting the signal information of the target particle with the signal information of the reference particle. In other embodiments, a device includes a cartridge and an analyzer. The analyzer is configured to receive the cartridge into the analyzer, measure a signal from the target particle and the reference particle, analyze the measured signal to obtain signal information, and determine size information of the target particle.
    Type: Application
    Filed: April 27, 2020
    Publication date: June 30, 2022
    Applicant: CytoChip Inc.
    Inventor: Wendian Shi
  • Publication number: 20220082486
    Abstract: The disclosure provides devices, device systems, and methods for analyzing cells (e.g., blood cells) or particles in a sample. In some embodiments, the disclosure provides various devices and device systems including: a light source; a collecting lens; and one, two, or more detectors. In other embodiments, the devices and device systems include a flow cell or a cartridge device with a flow cell. In further embodiments, the disclosure provides various methods including the steps of: using a light source to emit an irradiation light; using the irradiation light to illuminate a sample flow; using a collecting lens to collect both scattered light and fluorescent light from the sample flow; and using one, two, or more detectors to detect the collected scattered light and fluorescent light. Optionally, these methods include using a flow cell to form a sample flow.
    Type: Application
    Filed: November 24, 2021
    Publication date: March 17, 2022
    Applicant: CytoChip Inc.
    Inventor: Wendian Shi
  • Patent number: 11215545
    Abstract: The disclosure provides devices, device systems, and methods for analyzing cells (e.g., blood cells) or particles in a sample. In some embodiments, the disclosure provides various devices and device systems including: a light source; a collecting lens; and one, two, or more detectors. In other embodiments, the devices and device systems include a flow cell or a cartridge device with a flow cell. In further embodiments, the disclosure provides various methods including the steps of: using a light source to emit an irradiation light; using the irradiation light to illuminate a sample flow; using a collecting lens to collect both scattered light and fluorescent light from the sample flow; and using one, two, or more detectors to detect the collected scattered light and fluorescent light. Optionally, these methods include using a flow cell to form a sample flow.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: January 4, 2022
    Assignee: CytoChip Inc.
    Inventors: Wendian Shi, Zhaokai Meng, Yuzhe Ding
  • Publication number: 20210213445
    Abstract: A method for analyzing biological samples is disclosed herein. In an embodiment, the method includes receiving a fluid sample into a cartridge device, which comprises: a fluidic chamber; at least one microfluidic channel in fluid communication with the fluidic chamber; and a venting port configured to apply a pneumatic force to the fluidic chamber; and inserting the cartridge device into a reader device to perform measurements, wherein the cartridge device is positioned in a vertical or tilted position such that at least a portion of the fluid sample inside the fluidic chamber is pulled by gravity in a direction away from the venting port or towards the bottom of the fluidic chamber.
    Type: Application
    Filed: March 29, 2021
    Publication date: July 15, 2021
    Applicant: CytoChip, Inc.
    Inventors: Wendian Shi, Yuzhe Ding
  • Publication number: 20210164881
    Abstract: The disclosure relates to devices and methods for analyzing particles in a sample. In various embodiments, the present disclosure provides devices and methods for cytometry and additional analysis. In various embodiments, the present disclosure provides a cartridge device and a reader instrument device, wherein the reader instrument device receives, operates, and/or actuates the cartridge device. In various embodiments, the present disclosure provides a method of using a device as disclosed herein for analyzing particles in a sample.
    Type: Application
    Filed: February 9, 2021
    Publication date: June 3, 2021
    Applicant: CytoChip Inc.
    Inventors: Wendian Shi, Yuzhe Ding
  • Patent number: 10967374
    Abstract: A method for analyzing biological samples is disclosed herein. In an embodiment, the method includes receiving a fluid sample into a cartridge device, which comprises: a fluidic chamber; at least one microfluidic channel in fluid communication with the fluidic chamber; and a venting port configured to apply a pneumatic force to the fluidic chamber; and inserting the cartridge device into a reader device to perform measurements, wherein the cartridge device is positioned in a vertical or tilted position such that at least a portion of the fluid sample inside the fluidic chamber is pulled by gravity in a direction away from the venting port or towards the bottom of the fluidic chamber.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: April 6, 2021
    Assignee: CytoChip Inc.
    Inventors: Wendian Shi, Yuzhe Ding
  • Patent number: 10928296
    Abstract: The disclosure relates to devices and methods for analyzing particles in a sample. In various embodiments, the present disclosure provides devices and methods for cytometry and additional analysis. In various embodiments, the present disclosure provides a cartridge device and a reader instrument device, wherein the reader instrument device receives, operates, and/or actuates the cartridge device. In various embodiments, the present disclosure provides a method of using a device as disclosed herein for analyzing particles in a sample.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: February 23, 2021
    Assignee: CYTOCHIP INC.
    Inventors: Wendian Shi, Yuzhe Ding
  • Publication number: 20200400534
    Abstract: Devices and methods for analyzing a sample are disclosed. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample. In various embodiments, the present disclosure provides devices and methods for preparing a serial dilution of a sample and conducting sample analysis. In various embodiments, the present disclosure provides a cartridge device and a reader instrument device. The reader instrument device receives, operates, and/or actuates the cartridge device to prepare a serial dilution of a sample and conduct sample analysis.
    Type: Application
    Filed: February 26, 2019
    Publication date: December 24, 2020
    Applicant: CYTOCHIP, INC.
    Inventors: Wendian Shi, Yuan Gao, Yuzhe Ding
  • Publication number: 20200316599
    Abstract: Devices and methods for measuring analytes and target particles in a sample are disclosed. In some embodiments, the disclosure provides a cartridge device. In other embodiments, the disclosure provides a method of using a cartridge device as disclosed herein for analyzing analytes and target particles in a sample. In further embodiments, the disclosure provides an analyzer including a cartridge device and a control unit device. The control unit device is configured to receive, operate, and/or actuate the cartridge device. In some embodiments, the disclosure provides a method of using an analyzer as disclosed herein for analyzing analytes and target particles in a sample.
    Type: Application
    Filed: October 19, 2018
    Publication date: October 8, 2020
    Inventors: Wendian Shi, Yuzhe Ding, Yuan Gao