Patents by Inventor Qingqing DU

Qingqing DU 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).

  • Suture-free clasp for vascular anastomosis
    Patent number: 12161338
    Abstract: A suture-free clasp for vascular anastomosis, which relates to the technical field of vascular anastomosis. The clasp comprises a first end part (1), a second end part (2), a rotating shaft (3), a binding belt (4) and a rotation-stopping structure (5). The rotating shaft (3) is rotationally installed on the first end part (1); and one end of the binding belt (4) is fixed to the rotating shaft (3), and the other end of the binding belt (4) is fixed to the second end part (2). The second end part (2) is configured to be able to buckle with the first end part (1); and the rotation-stopping structure (5) is arranged between the first end part (1) and the rotating shaft (3), and the rotation-stopping structure (5) is configured to be able to lock the rotating shaft (3) on the first end part (1).
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: December 10, 2024
    Assignee: BEIJING PERCUTEK THERAPEUTICS CO., LTD.
    Inventors: Ying Liu, Fei Li, Yonghe Dong, Qingqing Du, Wuen Han, Fan Yang
  • SUTURE-FREE CLASP FOR VASCULAR ANASTOMOSIS
    Publication number: 20220061846
    Abstract: A suture-free clasp for vascular anastomosis, which relates to the technical field of vascular anastomosis. The clasp comprises a first end part (1), a second end part (2), a rotating shaft (3), a binding belt (4) and a rotation-stopping structure (5). The rotating shaft (3) is rotationally installed on the first end part (1); and one end of the binding belt (4) is fixed to the rotating shaft (3), and the other end of the binding belt (4) is fixed to the second end part (2). The second end part (2) is configured to be able to buckle with the first end part (1); and the rotation-stopping structure (5) is arranged between the first end part (1) and the rotating shaft (3), and the rotation-stopping structure (5) is configured to be able to lock the rotating shaft (3) on the first end part (1).
    Type: Application
    Filed: January 21, 2020
    Publication date: March 3, 2022
    Inventors: Ying LIU, Fei LI, Yonghe DONG, Qingqing DU, Wuen HAN, Fan YANG