Patents by Inventor Liangyu XIA

Liangyu XIA 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).

  • Vaginal sustained-release drug delivery system for luteal support, method for preparation and use thereof
    Patent number: 11439588
    Abstract: The present invention relates to a vaginal sustained-release drug delivery system for luteal support and a method for preparation and use thereof. The vaginal sustained-release drug delivery system for luteal support is a progesterone depot-type vaginal ring having a bilayer structure of a core layer and a film layer enclosing the core layer, wherein the core layer is composed of a solid scaffold carrier of medical EVA containing a drug uniformly dispersed therein, and the film layer is composed of a medical EVA material containing no drug. The vaginal sustained-release drug delivery system for luteal support according to the present invention can be used for assisted reproduction and for treatment of functional uterine bleeding, premenstrual syndrome and the like due to luteal phase defect with a significantly improved therapeutic effect.
    Type: Grant
    Filed: October 12, 2019
    Date of Patent: September 13, 2022
    Assignee: NATIONAL RESEARCH INSTITUTE FOR FAMILY PLANNING
    Inventors: Meiying Ning, Liangyu Xia, Xu Ma, Bin He
  • VAGINAL SUSTAINED-RELEASE DRUG DELIVERY SYSTEM FOR LUTEAL SUPPORT, METHOD FOR PREPARATION AND USE THEREOF
    Publication number: 20210369605
    Abstract: The present invention relates to a vaginal sustained-release drug delivery system for luteal support and a method for preparation and use thereof. The vaginal sustained-release drug delivery system for luteal support is a progesterone depot-type vaginal ring having a bilayer structure of a core layer and a film layer enclosing the core layer, wherein the core layer is composed of a solid scaffold carrier of medical EVA containing a drug uniformly dispersed therein, and the film layer is composed of a medical EVA material containing no drug. The vaginal sustained-release drug delivery system for luteal support according to the present invention can be used for assisted reproduction and for treatment of functional uterine bleeding, premenstrual syndrome and the like due to luteal phase defect with a significantly improved therapeutic effect.
    Type: Application
    Filed: October 12, 2019
    Publication date: December 2, 2021
    Inventors: Meiying NING, Liangyu XIA, Xu MA, Bin HE