Patents by Inventor Qingqing Fan

Qingqing Fan 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: 20240122672
    Abstract: An ultrasonic echogenic device (100) includes a base layer (1), an echogenic layer (2) covering the base layer (1) and adhered to the base layer (1) at least by a separate lower adhesive (4), an outer layer (3) covering the echogenic layer (2) and adhered to the echogenic layer (2) at least by a separate upper adhesive (5), wherein the ultrasonic echogenic device (100) is configured such that a rough interface is provided at a position where the echogenic material of the echogenic layer (2) contacts at least the upper surface of the upper adhesive (4), and the outer surface of the outer layer (3) at least partially follows an undulation of the rough interface. An ultrasonic echogenic device (100) with a simple structure and easily formed is obtained.
    Type: Application
    Filed: November 8, 2023
    Publication date: April 18, 2024
    Inventor: Qingqing Fan
  • Publication number: 20240033488
    Abstract: An echogenic balloon dilation catheter and a balloon thereof. The balloon includes a balloon body, a balloon cone at each side of the balloon body, and a balloon tip extending from the balloon cone and fixed to the catheter, the balloon body and the balloon cone being formed of a plurality of polymer layers in a radial direction of the balloon. The balloon may be of enhanced echogenicity using a variety of disclosed techniques.
    Type: Application
    Filed: October 9, 2023
    Publication date: February 1, 2024
    Inventors: Qingqing Fan, Irene Gao, Xin Wen
  • Patent number: 11849911
    Abstract: An ultrasonic echogenic device (100) includes a base layer (1), an echogenic layer (2) covering the base layer (1) and adhered to the base layer (1) at least by a separate lower adhesive (4), an outer layer (3) covering the echogenic layer (2) and adhered to the echogenic layer (2) at least by a separate upper adhesive (5), wherein the ultrasonic echogenic device (100) is configured such that a rough interface is provided at a position where the echogenic material of the echogenic layer (2) contacts at least the upper surface of the upper adhesive (5) and the lower adhesive (4), and the outer surface of the outer layer (3) at least partially follows an undulation of the rough interface. An ultrasonic echogenic device (100) with a simple structure and easily formed is obtained.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: December 26, 2023
    Assignee: BECTON, DICKINSON AND COMPANY
    Inventor: Qingqing Fan
  • Patent number: 11813418
    Abstract: An echogenic balloon dilation catheter and a balloon thereof. The balloon includes a balloon body, a balloon cone at each side of the balloon body, and a balloon tip extending from the balloon cone and fixed to the catheter, the balloon body and the balloon cone being formed of a plurality of polymer layers in a radial direction of the balloon. The balloon may be of enhanced echogenicity using a variety of disclosed techniques.
    Type: Grant
    Filed: August 24, 2020
    Date of Patent: November 14, 2023
    Assignee: BECTON, DICKINSON AND COMPANY
    Inventors: Qingqing Fan, Irene Gao, Xin Wen
  • Publication number: 20230190405
    Abstract: An ultrasonic echogenic device (100) includes a base layer (1), an echogenic layer (2) covering the base layer (1) and adhered to the base layer (1) at least by a separate lower adhesive (4), an outer layer (3) covering the echogenic layer (2) and adhered to the echogenic layer (2) at least by a separate upper adhesive (5), wherein the ultrasonic echogenic device (100) is configured such that a rough interface is provided at a position where the echogenic material of the echogenic layer (2) contacts at least the upper surface of the upper adhesive (5) and the lower adhesive (4), and the outer surface of the outer layer (3) at least partially follows an undulation of the rough interface. An ultrasonic echogenic device (100) with a simple structure and easily formed is obtained.
    Type: Application
    Filed: June 4, 2021
    Publication date: June 22, 2023
    Inventor: Qingqing Fan
  • Publication number: 20210052861
    Abstract: An echogenic balloon dilation catheter and a balloon thereof. The balloon includes a balloon body, a balloon cone at each side of the balloon body, and a balloon tip extending from the balloon cone and fixed to the catheter, the balloon body and the balloon cone being formed of a plurality of polymer layers in a radial direction of the balloon. The balloon may be of enhanced echogenicity using a variety of disclosed techniques.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 25, 2021
    Inventors: Qingqing Fan, Irene Gao, Ariel Wen
  • Publication number: 20210055414
    Abstract: An echogenicity quantitative test system for a sample echogenic medical device includes a fixture into which the echogenic medical device is positioned in relation to an ultrasonic probe connected with an ultrasound diagnostic device. The fixture includes a frame; a probe holder having a first guide rod and a probe clamp configured to hold the ultrasonic probe and movably held on the first guide rod, and a sample holder having a second guide rod and a sample clamp configured to hold the medical device sample. The sample clamp is movably held on the second guide rod. The frame may include guide rails, and the first guide rod and the second guide rod are movably disposed in the guide rails so as to allow for adjustments to the relative positions of the ultrasonic probe and the sample echogenic medical device.
    Type: Application
    Filed: August 24, 2020
    Publication date: February 25, 2021
    Inventors: Qingqing Fan, Irene Gao