Patents by Inventor Xiangjun YAN

Xiangjun 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).

  • Patent number: 12485190
    Abstract: A nanocarbon-iodine calcium alginate microspheres and a preparation method thereof are provided, the nanocarbon is added to the microspheres to enhance an imaging capability of iodine under X-ray, which is a good way to solve a problem that an embolic agent in clinical application cannot be imaged under X-ray. In addition, the preparation method is simple with good stability and safety. It is proved through experiments that the microspheres can be imaged under conventional interventional X-ray examination devices in CT and DSA, it is proved through animal experiments that the microspheres have good X-ray imaging performance and embolization effect.
    Type: Grant
    Filed: April 15, 2025
    Date of Patent: December 2, 2025
    Assignee: NANJING DRUM TOWER HOSPITAL
    Inventors: Zhaoping Yan, Xiangjun Yan, Yongping Yan, Haoya Sun
  • Publication number: 20250360232
    Abstract: A nanocarbon-iodine calcium alginate microspheres and a preparation method thereof are provided, the nanocarbon is added to the microspheres to enhance an imaging capability of iodine under X-ray, which is a good way to solve a problem that an embolic agent in clinical application cannot be imaged under X-ray. In addition, the preparation method is simple with good stability and safety. It is proved through experiments that the microspheres can be imaged under conventional interventional X-ray examination devices in CT and DSA, it is proved through animal experiments that the microspheres have good X-ray imaging performance and embolization effect.
    Type: Application
    Filed: April 15, 2025
    Publication date: November 27, 2025
    Applicant: NANJING DRUM TOWER HOSPITAL
    Inventors: Zhaoping YAN, Xiangjun YAN, Yongping YAN, Haoya SUN
  • Publication number: 20230171870
    Abstract: Provided are a surface coupling induced ionization method, and a plasma device. The method includes the following steps: (1) feeding a first electromagnetic wave beam to a material via a free space or waveguide to excite surface plasma waves; where target molecules to be ionized are introduced to a surface of the material, and electrons of the target molecules are coupled with surface plasmons on the material under interaction control to induce the ionization of the target molecules; (2) feeding second and subsequent electromagnetic wave beams to an ionization area of the target molecules on the surface of the material synchronously via the free space or waveguide, such that the ionized target molecules absorb the electromagnetic waves to improve the degree of ionization of the target molecules; and (3) releasing the target molecules in the form of bulk phase plasma to realize surface coupling induced ionization.
    Type: Application
    Filed: May 9, 2020
    Publication date: June 1, 2023
    Inventors: Linde Zhang, Xiangjun Yan
  • Publication number: 20230165990
    Abstract: Provided are an adjustable continuous-flow plasma disinfection and sterilization method and a disinfection and sterilization device. The adjustable continuous-flow plasma disinfection and sterilization method includes: (1) exciting atmospheric-pressure plasmas in a disinfection and sterilization chamber featuring an adjustable inlet-outlet pressure difference; (2) adjusting the inlet-outlet pressure difference of the disinfection and sterilization chamber after the atmospheric-pressure plasmas become stable, so as to adjust the plasma density in the chamber; (3) continuously feeding microorganism carriers to be disinfected and sterilized into the disinfection and sterilization chamber for disinfection or sterilization; and (4) continuously discharging the carriers out of the disinfection and sterilization chamber to complete disinfection or sterilization. The method allows continuous work under atmospheric pressure, and can disinfect or sterilize closed, semi-open or open spaces.
    Type: Application
    Filed: May 9, 2020
    Publication date: June 1, 2023
    Inventors: Linde ZHANG, Xiangjun YAN