Patents by Inventor Yongxian Qian

Yongxian Qian 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).

  • Publication number: 20200367795
    Abstract: A wearable device and method for noninvasive and continuous monitoring of blood glucose level in a patient. The device may include a unilateral permanent magnet generating a static magnetic field to a target area under the skin of the patient, the target area comprising blood vessels and tissue surrounding the blood vessels. The device may also include a transmitter delivering a radiofrequency (RF) field to the target area to excite proton nuclear spins in the target area, wherein at least a portion of the transmitter is positioned between the magnet and the skin. The device may further include a sensor detecting a RF signal from the excited proton nuclear spins in the target area. A processing arrangement may receive data corresponding to the detected RF signal from the sensor and determine a level of blood glucose in the patient based on the data.
    Type: Application
    Filed: January 17, 2019
    Publication date: November 26, 2020
    Inventors: Yongxian QIAN, Bei ZHANG
  • Patent number: 8022704
    Abstract: A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic resonance signal associated with the object, and reconstructing the magnetic resonance image based on the spirally encoded and phase encoded magnetic resonance signal. The pulse sequence includes a slab-selective radiofrequency pulse, a slab-selective gradient pulse, a plurality of variable duration slice encoding gradient pulses, a plurality of first spiral encoding gradient pulses, and a plurality of second spiral encoding gradient pulses. The detection of the spirally encoded and phase encoded magnetic resonance signal occurs concurrently with the application of one of the plurality of first spiral encoding gradient pulses and with the application of one of the plurality of second spiral encoding gradient pulses.
    Type: Grant
    Filed: May 21, 2010
    Date of Patent: September 20, 2011
    Assignee: University of Pittsburgh-Of The Commonwealth System of Higher Education
    Inventors: Yongxian Qian, Fernando E. Boada
  • Publication number: 20100231218
    Abstract: A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic resonance signal associated with the object, and reconstructing the magnetic resonance image based on the spirally encoded and phase encoded magnetic resonance signal. The pulse sequence includes a slab-selective radiofrequency pulse, a slab-selective gradient pulse, a plurality of variable duration slice encoding gradient pulses, a plurality of first spiral encoding gradient pulses, and a plurality of second spiral encoding gradient pulses. The detection of the spirally encoded and phase encoded magnetic resonance signal occurs concurrently with the application of one of the plurality of first spiral encoding gradient pulses and with the application of one of the plurality of second spiral encoding gradient pulses.
    Type: Application
    Filed: May 21, 2010
    Publication date: September 16, 2010
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Yongxian Qian, Fernando E. Boada
  • Patent number: 7750632
    Abstract: A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic resonance signal associated with the object, and reconstructing the magnetic resonance image based on the spirally encoded and phase encoded magnetic resonance signal. The pulse sequence includes a slab-selective radiofrequency pulse, a slab-selective gradient pulse, a plurality of variable duration slice encoding gradient pulses, a plurality of first spiral encoding gradient pulses, and a plurality of second spiral encoding gradient pulses. The detection of the spirally encoded and phase encoded magnetic resonance signal occurs concurrently with the application of one of the plurality of first spiral encoding gradient pulses and with the application of one of the plurality of second spiral encoding gradient pulses.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: July 6, 2010
    Assignee: University of Pittsburgh - of the Commonwealth System of Higher Education
    Inventors: Yongxian Qian, Fernando E. Boada
  • Publication number: 20080258727
    Abstract: A method for producing a magnetic resonance image using an ultra-short echo time. The method includes applying a pulse sequence to an object, detecting a spirally encoded and phase encoded magnetic resonance signal associated with the object, and reconstructing the magnetic resonance image based on the spirally encoded and phase encoded magnetic resonance signal. The pulse sequence includes a slab-selective radiofrequency pulse, a slab-selective gradient pulse, a plurality of variable duration slice encoding gradient pulses, a plurality of first spiral encoding gradient pulses, and a plurality of second spiral encoding gradient pulses. The detection of the spirally encoded and phase encoded magnetic resonance signal occurs concurrently with the application of one of the plurality of first spiral encoding gradient pulses and with the application of one of the plurality of second spiral encoding gradient pulses.
    Type: Application
    Filed: March 24, 2008
    Publication date: October 23, 2008
    Inventors: Yongxian Qian, Fernando E. Boada