Patents by Inventor Francois T.H. Yu

Francois T.H. Yu 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).

  • Contrast assisted intravascular ultrasound imaging
    Patent number: 10085721
    Abstract: A method of imaging a blood vessel includes delivering a bubble-based contrast agent within the vessel and positioning at least one ultrasound device in the vicinity of the bubble-based contrast agent within the vessel. A first burst of low-frequency ultrasound energy can be delivered to excite the bubble-based contrast agent into oscillation within the vessel, and a second burst of high-frequency ultrasound energy can be delivered at the excited bubble-based contrast agent. A return signal from the burst of high-frequency ultrasound energy can be received and processed to obtain one or more images.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: October 2, 2018
    Assignee: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Xucai Chen, Francois T. H. Yu, Flordeliza S. Villanueva
  • CONTRAST ASSISTED INTRAVASCULAR ULTRASOUND IMAGING
    Publication number: 20170156699
    Abstract: A method of imaging a blood vessel includes delivering a bubble-based contrast agent within the vessel and positioning at least one ultrasound device in the vicinity of the bubble-based contrast agent within the vessel. A first burst of low-frequency ultrasound energy can be delivered to excite the bubble-based contrast agent into oscillation within the vessel, and a second burst of high-frequency ultrasound energy can be delivered at the excited bubble-based contrast agent. A return signal from the burst of high-frequency ultrasound energy can be received and processed to obtain one or more images.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 8, 2017
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Xucai Chen, Francois T.H. Yu, Flordeliza S. Villanueva
  • Contrast assisted intravascular ultrasound imaging
    Patent number: 9603582
    Abstract: A method of imaging a blood vessel includes delivering a bubble-based contrast agent within the vessel and positioning at least one ultrasound device in the vicinity of the bubble-based contrast agent within the vessel. A first burst of low-frequency ultrasound energy can be delivered to excite the bubble-based contrast agent into oscillation within the vessel, and a second burst of high-frequency ultrasound energy can be delivered at the excited bubble-based contrast agent. A return signal from the burst of high-frequency ultrasound energy can be received and processed to obtain one or more images.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: March 28, 2017
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Xucai Chen, Francois T. H. Yu, Flordeliza S. Villanueva
  • CONTRAST ASSISTED INTRAVASCULAR ULTRASOUND IMAGING
    Publication number: 20140236005
    Abstract: A method of imaging a blood vessel includes delivering a bubble-based contrast agent within the vessel and positioning at least one ultrasound device in the vicinity of the bubble-based contrast agent within the vessel. A first burst of low-frequency ultrasound energy can be delivered to excite the bubble-based contrast agent into oscillation within the vessel, and a second burst of high-frequency ultrasound energy can be delivered at the excited bubble-based contrast agent. A return signal from the burst of high-frequency ultrasound energy can be received and processed to obtain one or more images.
    Type: Application
    Filed: August 24, 2012
    Publication date: August 21, 2014
    Applicant: University of Pittsburgh-Of the Commonwealth Systems of Higher Education
    Inventors: Xucai Chen, Francois T.H. Yu, Flordeliza S. Villanueva