Patents by Inventor Changsheng Dai

Changsheng Dai 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).

  • Method for automated non-invasive measurement of sperm motility and morphology and automated selection of a sperm with high DNA integrity
    Patent number: 11536643
    Abstract: A method of automated measurement of motility and morphology parameters of the same single motile sperm. Automated motility and morphology measurements of the same single sperm are performed under different microscope magnifications. The same single motile sperm is automatically positioned and kept inside microscope field of view and in focus after magnification switch. A method of automated non-invasive measurement of sperm morphology parameters under high magnification of imaging. Sperm morphology parameters including subcellular structures are automatically measured without invasive sample staining. A method of automatically selecting sperms with normal motility and morphology and DNA integrity for infertility treatment.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: December 27, 2022
    Assignee: The Governing Council of the University of Toronto
    Inventors: Yu Sun, Changsheng Dai, Zhuoran Zhang
  • A METHOD FOR AUTOMATED NON-INVASIVE MEASUREMENT OF SPERM MOTILITY AND MORPHOLOGY AND AUTOMATED SELECTION OF A SPERM WITH HIGH DNA INTEGRITY
    Publication number: 20210270717
    Abstract: A method of automated measurement of motility and morphology parameters of the same single motile sperm. Automated motility and morphology measurements of the same single sperm are performed under different microscope magnifications. The same single motile sperm is automatically positioned and kept inside microscope field of view and in focus after magnification switch. A method of automated non-invasive measurement of sperm morphology parameters under high magnification of imaging. Sperm morphology parameters including subcellular structures are automatically measured without invasive sample staining. A method of automatically selecting sperms with normal motility and morphology and DNA integrity for infertility treatment.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 2, 2021
    Inventors: Yu Sun, Changsheng Dai, Zhuoran Zhang