Patents by Inventor Xinqiang Yan

Xinqiang Yan 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).

  • Passive wire reflectors for improved image quality in MR-guided focused ultrasound
    Patent number: 11957936
    Abstract: A system for transcranial magnetic resonance (MR)-guided focused ultrasound and method of using transcranial MR-guided focused ultrasound are disclosed. The system includes a transcranial ultrasound transducer configured to apply ultrasound radiation to a patient's head. The system also includes an antenna that reflects radio frequency (RF) waves. The antenna is configured to be positioned between the transducer and the patient's head. The antenna and at least a portion of the patient's head are surrounded by a fluid. Embodiments foster improved MR image quality scans of the patient's head when the transducer is filled with the fluid.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: April 16, 2024
    Assignee: Vanderbilt University
    Inventors: Xinqiang Yan, William A. Grissom
  • Self-decoupled RF coil array for MRI
    Patent number: 11237233
    Abstract: A self-decoupled RF coil and method for adjusting the same is disclosed. The RF coil is an array of elements including at least one loop. Electromagnetic coupling between elements in the array causes an induced current in the at least one loop. The induced current has two modes. A reactance inserted in the at least one loop balances the two modes. The balanced current modes cancel. This cancelation results in self-decoupling of at the least one loop from the other elements in the RF coil array.
    Type: Grant
    Filed: March 21, 2018
    Date of Patent: February 1, 2022
    Assignee: Vanderbilt University
    Inventors: Xinqiang Yan, John C. Gore, William A. Grissom
  • SELF-DECOUPLED RF COIL ARRAY FOR MRI
    Publication number: 20210190889
    Abstract: A self-decoupled RF coil and method for adjusting the same is disclosed. The RF coil is an array of elements including at least one loop. Electromagnetic coupling between elements in the array causes an induced current in the at least one loop. The induced current has two modes. A reactance inserted in the at least one loop balances the two modes. The balanced current modes cancel. This cancelation results in self-decoupling of at the least one loop from the other elements in the RF coil array.
    Type: Application
    Filed: March 21, 2018
    Publication date: June 24, 2021
    Inventors: Xinqiang YAN, John C. GORE, William A. GRISSOM
  • PASSIVE WIRE REFLECTORS FOR IMPROVED IMAGE QUALITY IN MR-GUIDED FOCUSED ULTRASOUND
    Publication number: 20200360733
    Abstract: A system for transcranial magnetic resonance (MR)-guided focused ultrasound and method of using transcranial MR-guided focused ultrasound are disclosed. The system includes a transcranial ultrasound transducer configured to apply ultrasound radiation to a patient's head. The system also includes an antenna that reflects radio frequency (RF) waves. The antenna is configured to be positioned between the transducer and the patient's head. The antenna and at least a portion of the patient's head are surrounded by a fluid. Embodiments foster improved MR image quality scans of the patient's head when the transducer is filled with the fluid.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 19, 2020
    Inventors: Xinqiang Yan, William A. Grissom