Patents by Inventor Lingfeng CHANG

Lingfeng CHANG 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).

  • Piezoelectric ultrasonic microinjection device based on flexible hinge mechanism
    Patent number: 11312934
    Abstract: The present invention discloses a piezoelectric ultrasonic microinjection device based on a flexible hinge mechanism. The device includes: a cover, a flexible hinge mechanism, a base, a screw cap and an end cap fixedly assembled together, the base being provided with a pump interface; and a micropipette fixedly mounted in the base, the screw cap and the end cap and extending outward, the micropipette being in communication with the pump interface; wherein the flexible hinge mechanism comprises a housing, a piezoelectric ceramic package module encapsulated in the housing, a central shaft fixedly mounted with the piezoelectric ceramic package module and the base, and a vibration output shaft extending from the piezoelectric ceramic package module into the central shaft, a plurality of flexible hinge beams being disposed between the central shaft and the housing.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: April 26, 2022
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Haibo Huang, Xiwei Gao, Liguo Chen, Fei Zhou, Hao Guo, Lingfeng Chang, Jizhu Liu, Yangjun Wang, Lining Sun
  • PIEZOELECTRIC ULTRASONIC MICROINJECTION DEVICE BASED ON FLEXIBLE HINGE MECHANISM
    Publication number: 20200332244
    Abstract: The present invention discloses a piezoelectric ultrasonic microinjection device based on a flexible hinge mechanism. The device includes: a cover, a flexible hinge mechanism, a base, a screw cap and an end cap fixedly assembled together, the base being provided with a pump interface; and a micropipette fixedly mounted in the base, the screw cap and the end cap and extending outward, the micropipette being in communication with the pump interface; wherein the flexible hinge mechanism comprises a housing, a piezoelectric ceramic package module encapsulated in the housing, a central shaft fixedly mounted with the piezoelectric ceramic package module and the base, and a vibration output shaft extending from the piezoelectric ceramic package module into the central shaft, a plurality of flexible hinge beams being disposed between the central shaft and the housing.
    Type: Application
    Filed: May 22, 2018
    Publication date: October 22, 2020
    Inventors: Haibo HUANG, Xiwei GAO, Liguo CHEN, Fei ZHOU, Hao GUO, Lingfeng CHANG, Jizhu LIU, Yangjun WANG, Lining SUN