Patents by Inventor Zhifu HAN

Zhifu HAN 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).

  • Blood pump device
    Patent number: 11471664
    Abstract: Disclosed is a blood pump device. The blood pump device includes: a housing having an overflow passage, and an inlet and an outlet respectively connected to the overflow passage; a rotor assembly rotatably disposed in the overflow passage; a coil disposed in a side wall of the housing; a first permanent magnet portion disposed inside the rotor assembly; a second permanent magnet portion disposed in the side wall of the housing, the first permanent magnet portion and the second permanent magnet portion forming a radial permanent magnet bearing; a piece of electric motor magnetic steel disposed inside a rotor of the rotor assembly; and a magnetic protection portion disposed at a periphery of the coil, wherein the magnetic protection portion and the electric motor magnetic steel act together to provide an axial pre-tightening force for the rotor assembly.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: October 18, 2022
    Assignee: RocketHeart Technology Co. Ltd
    Inventors: Jian Xu, Qinglin Fan, Wenjin Wu, Xuman Zhang, Zhifu Han, Guogang Song, Ying Dai
  • Blood Pump Device
    Publication number: 20210128902
    Abstract: Disclosed is a blood pump device. The blood pump device includes: a housing having an overflow passage, and an inlet and an outlet respectively connected to the overflow passage; a rotor assembly rotatably disposed in the overflow passage; a coil disposed in a side wall of the housing; a first permanent magnet portion disposed inside the rotor assembly; a second permanent magnet portion disposed in the side wall of the housing, the first permanent magnet portion and the second permanent magnet portion forming a radial permanent magnet bearing; a piece of electric motor magnetic steel disposed inside a rotor of the rotor assembly; and a magnetic protection portion disposed at a periphery of the coil, wherein the magnetic protection portion and the electric motor magnetic steel act together to provide an axial pre-tightening force for the rotor assembly.
    Type: Application
    Filed: September 18, 2017
    Publication date: May 6, 2021
    Inventors: Jian XU, Qinglin FAN, Wenjin WU, Xuman ZHANG, Zhifu HAN, Guogang SONG, Ying DAI