Patents by Inventor Weiliang Liang

Weiliang Liang 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: 11766211
    Abstract: The present invention provides a uterus OCT catheter, comprising: a catheter body; the catheter body comprises an outer sleeve, an OCT imaging catheter and a Luer connector; the outer sleeve is provided with an exit window; the reflecting surface of the reflecting prism in the OCT imaging catheter faces the exit window. The present invention further provides a uterus OCT equipment with pull-back function, comprising a pull-back device and the catheter body, the pull-back device comprises a first housing, a driving connector, a fixing sleeve and a catheter fixing tube. The invention adopts the way that the outer sleeve wraps the OCT imaging catheter to increase the overall strength and diameter; a pull-back device is adopted, the pull-back process is stable and in uniform speed, and can effectively prevent complications during human operation and damage to human tissue during pull-back process.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: September 26, 2023
    Assignee: GUANGZHOU WINSTAR MEDICAL TECHNOLOGY COMPANY LIMITED
    Inventors: Liyan Song, Weiliang Liang, Jiangfan Pan, Bailing Li, Jun Gao, Zhigang Cai
  • Publication number: 20200367752
    Abstract: The present invention provides an OCT catheter for the respiratory tract. An optical fiber connecting part is connected to an optical fiber, a guide wire assembly is sleeved outside the optical fiber connected to an optical fiber interface, an end of the guide wire assembly is sleeved inside the optical fiber interface connected to an optical fiber coupler, the optical fiber coupler is sleeved inside a connector sleeved inside a fixing head, an end of the fixing head is sleeved inside a sealing assembly, and the guide wire assembly sequentially passes through the connector, the fixing head and the sealing assembly. The OCT catheter is connected to the SC-type optical fiber interface through the SC-SC optical fiber coupler of a driving module. By adopting a guide wire with a small diameter, the medical OCT catheter can be applied to higher-generation bronchi, thereby expanding the application range.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 26, 2020
    Inventors: Liyan SONG, Bailing LI, Weiliang LIANG, Jun GAO, Zhigang CAI, Jiaoyang LI
  • Publication number: 20200305724
    Abstract: The present invention provides a uterus OCT catheter, comprising: a catheter body; the catheter body comprises an outer sleeve, an OCT imaging catheter and a Luer connector; the outer sleeve is provided with an exit window; the reflecting surface of the reflecting prism in the OCT imaging catheter faces the exit window. The present invention further provides a uterus OCT equipment with pull-back function, comprising a pull-back device and the catheter body, the pull-back device comprises a first housing, a driving connector, a fixing sleeve and a catheter fixing tube. The invention adopts the way that the outer sleeve wraps the OCT imaging catheter to increase the overall strength and diameter; a pull-back device is adopted, the pull-back process is stable and in uniform speed, and can effectively prevent complications during human operation and damage to human tissue during pull-back process.
    Type: Application
    Filed: November 3, 2017
    Publication date: October 1, 2020
    Inventors: LIYAN SONG, WEILIANG LIANG, JIANGFAN PAN, BAILING LI, JUN GAO, ZHIGANG CAI
  • Patent number: D848881
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: May 21, 2019
    Assignee: Guangzhou Wondfo Biotech Co., Ltd.
    Inventors: Renhong Huang, Weiliang Liang, Haisheng Hu, Jihua Wang