Patents by Inventor Zezhang ZHU

Zezhang ZHU 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).

  • Adjustable double-slot internal spinal fixation apparatus and bone screw
    Patent number: 11684393
    Abstract: The present disclosure provides an adjustable double-slot internal spinal fixation apparatus, including a first base, a second base and a connecting rod. The first base and the second base each contains a U-shaped slot from top to bottom. An inner wall of each U-shaped slot contains inner threads. The connecting rod is disposed along a horizontal direction. The second base contains a long slot along the horizontal direction. One end of the connecting rod is inserted in the first base, and the other end of the connecting rod is inserted in the long slot of the second base. The connecting rod can swing in the long slot. The first base and the second base are capable of relatively rotating on the connecting rod.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: June 27, 2023
    Assignee: SHANGHAI SANYOU MEDICAL CO., LTD.
    Inventors: Zezhang Zhu, Yong Qiu, Michael Mingyan Liu, Ruifeng Liu
  • ADJUSTABLE DOUBLE-SLOT INTERNAL SPINAL FIXATION APPARATUS AND BONE SCREW
    Publication number: 20200305933
    Abstract: The present disclosure provides an adjustable double-slot internal spinal fixation apparatus, including a first base, a second base and a connecting rod. The first base and the second base each contains a U-shaped slot from top to bottom. An inner wall of each U-shaped slot contains inner threads. The connecting rod is disposed along a horizontal direction. The second base contains a long slot along the horizontal direction. One end of the connecting rod is inserted in the first base, and the other end of the connecting rod is inserted in the long slot of the second base. The connecting rod can swing in the long slot. The first base and the second base are capable of relatively rotating on the connecting rod.
    Type: Application
    Filed: April 10, 2018
    Publication date: October 1, 2020
    Applicant: Shanghai Sanyou Medical Co., Ltd.
    Inventors: Zezhang ZHU, Yong QIU, Michael Mingyan LIU, Ruifeng LIU