Patents by Inventor Jiannan LIU

Jiannan LIU 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: 20230338219
    Abstract: An intelligent mouth opening rehabilitation device is provided, including: a body, an end of the body is provided with an upper bite pad and a lower bite pad; a pressure sensor, for detecting pressure data on the upper bite pad and/or the lower bite pad; a stepping motor, for driving the upper bite pad and/or the lower bite pad to swing longitudinally; and a processor, for controlling the stepping motor to operate or stop according to the pressure data and/or a preset training instruction, thereby driving the upper bite pad and/or the lower bite pad to swing longitudinally or to stop. Compared with traditional mouth opening rehabilitation devices, the intelligent mouth opening rehabilitation device controls automatically the upper bite pad and/or the lower bite pad to swing longitudinally, so that a mouth opening training is more accurate, and more controllable. Therefore, a rehabilitation effect is greatly improved.
    Type: Application
    Filed: July 27, 2021
    Publication date: October 26, 2023
    Applicant: Shanghai Ninth People's Hospital, Shanghai JiaoTong University School of Medicine
    Inventors: Jiannan LIU, Guangtao ZHAI, Chenping ZHANG, Zhiyuan ZHANG
  • Patent number: 11564755
    Abstract: The present application provides an automatic knife stop device and a system for fibula cutting, a computer equipment, and a medium. The device includes: an acquisition module; a threshold module; and a judgment module. The present application can avoid the destruction of blood vessels during shaping and greatly improve the success rate of surgery, while greatly improve the robustness of the control system by increasing the strength of the force feedback signal.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: January 31, 2023
    Assignee: SHANGHAI NINTH PEOPLE'S HOSPITAL, SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE
    Inventors: Jiannan Liu, Junlei Hu, Jing Han, Chenping Zhang, Zilin Wang, Zhiyong Guo, Yige Liu
  • Publication number: 20230021811
    Abstract: The present application provides an automatic knife stop device and a system for fibula cutting, a computer equipment, and a medium. The device includes: an acquisition module; a threshold module; and a judgment module. The present application can avoid the destruction of blood vessels during shaping and greatly improve the success rate of surgery, while greatly improve the robustness of the control system by increasing the strength of the force feedback signal.
    Type: Application
    Filed: July 11, 2022
    Publication date: January 26, 2023
    Applicant: SHANGHAI NINTH PEOPLE'S HOSPITAL, SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE
    Inventors: JIANNAN LIU, JUNLEI HU, JING HAN, CHENPING ZHANG, ZILIN WANG, ZHIYONG GUO, YIGE LIU
  • Patent number: 11337782
    Abstract: Disclosed is a dental implant distractor, including an implant module and a traction module. The implant module includes an implant, a sealing screw, and a base body. The traction module includes a connecting screw rod, a traction screw rod, an inner sleeve, and an outer sleeve; the connecting screw rod is threadedly connected to the base body; the traction screw rod is located below the connecting screw rod; the inner sleeve is provided below the base body. This apparatus can automatically complete the installation of the base body and the sealing of the connecting screw rod after traction is completed; since the installation of the base body and the sealing do not need to be performed again, operation steps are simplified, the clinical operation difficulty is reduced, and the problem of slippage of an upper bone section to the original position is avoided.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: May 24, 2022
    Inventors: Chenping Zhang, Jiannan Liu, Fuming Xu, Xingzhou Qu, Jizhuang Ma
  • Publication number: 20220142687
    Abstract: The present disclosure provides a bone reconstruction connection structure and method based on tenon-and-mortise fixation. The bone reconstruction connection structure based on tenon-and-mortise fixation includes at least two bone segments, and adjacent bone segments are detachably connected through a first connecting part and a second connecting part; the first connecting part includes a first tongue and a first shoulder, the first tongue protrudes from the first shoulder; the second connecting part includes a first slot and a first slot shoulder, and the first slot is retracted relative to the first slot shoulder, and the part of the first tongue protruding from the first shoulder matches the first slot. The bone reconstruction connection structure provided by the present disclosure is reinforced only through its own tenon-and-mortise structure, which can reduce the risk of infection, rejection and even secondary operation caused by implant fixation, and promote the healing of broken bone ends.
    Type: Application
    Filed: January 25, 2022
    Publication date: May 12, 2022
    Applicant: SHANGHAI NINTH PEOPLE'S HOSPITAL, JIAOTONG UNIVERSITY SCHOOL OF MEDICINE
    Inventors: JIANNAN LIU, CHENPING ZHANG
  • Publication number: 20210322137
    Abstract: Disclosed is a dental implant distractor, comprising an implant module and a traction module. The implant module comprises an implant, a sealing screw, and a base body. The traction module comprises a connecting screw rod, a traction screw rod, an inner sleeve, and an outer sleeve; the connecting screw rod is threadedly connected to the base body; the traction screw rod is located below the connecting screw rod; the inner sleeve is provided below the base body. This apparatus can automatically complete the installation of the base body and the sealing of the connecting screw rod after traction is completed; since the installation of the base body and the sealing do not need to be performed again, operation steps are simplified, the clinical operation difficulty is reduced, and the problem of slippage of an upper bone section to the original position is avoided.
    Type: Application
    Filed: December 27, 2017
    Publication date: October 21, 2021
    Applicants: SHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE, SHANGHAI JINGTANG MEDICAL APPARATUS AND INSTRUMENTS LIMITED
    Inventors: Chenping ZHANG, Jiannan LIU, Fuming XU, Xingzhou QU, Jizhuang MA