Patents by Inventor Peijun LYU

Peijun LYU 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: 11913590
    Abstract: A flexible peristaltic robot with a built-in bidirectional gas pump for self-regulating gas flow. The robot includes a head-end airbag, an extension-retraction airbag, a tail-end airbag, a power module, a control module and a bidirectional gas pump. When there is harmful gas or less gas in the external environment, an additional airbag is provided in the flexible peristaltic robot to form a closed internal circulation of air flow. Otherwise, the robot directly exchanges gas with the external environment to form an open external circulation of air flow. The flexible peristaltic robot can either use multiple bidirectional air pumps or use a single bidirectional air pump and multiple electrically-controlled switches to control the expansion and contraction of the airbags to enable the robot to move forward.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: February 27, 2024
    Assignee: PEKING UNIVERSITY SCHOOL OF STOMATOLOGY
    Inventors: Fusong Yuan, Peijun Lyu, Yunsong Liu, ShanShan Liang
  • Patent number: 11576745
    Abstract: Hollow vector support multifunctional protection devices and systems for minimally invasive surgery are disclosed. In an embodiment, a hollow vector support multifunctional protection device includes a protective head, a pitching mechanism for the protective head, an inner cylinder, an axial movement mechanism for the inner cylinder, and a shell. The protective head includes a flap ring, a plurality of first rotating shafts, a plurality of flaps uniformly arranged on the flap ring through the first rotating shafts, and a torsion spring arranged on the first rotating shafts. The torsion spring is configured to provide a force for opening the plurality of flaps along the first rotating shafts, and the first rotating shafts are provided with limiting structures configured to limit a maximum opening degree of the flaps.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: February 14, 2023
    Assignee: Peking University School and Hospital of Stomatology
    Inventors: Fusong Yuan, Peijun Lyu
  • Publication number: 20220015830
    Abstract: An anti-contamination laser surgery device with a built-in optical element, including an inner cylinder, an outer cylinder, a first unit configured to enable the inner cylinder and the outer cylinder to be telescopic, a lens moving unit, a two-dimensional laser scanning unit, a real-time monitoring unit, and a second unit configured to perform unidirectional laminar flow ventilation. A head end of the inner cylinder and a tail end of the outer cylinder are matched and connected by the first unit. The two-dimensional laser scanning unit and the real-time monitoring unit are arranged at the head end of the outer cylinder, and the lens moving unit is arranged in the inner cylinder and close to the head end of the inner cylinder. The second unit is arranged close to a tail end of the inner cylinder.
    Type: Application
    Filed: September 29, 2021
    Publication date: January 20, 2022
    Inventors: Fusong YUAN, Peijun LYU
  • Publication number: 20220008165
    Abstract: A root canal treatment robot and a treatment method using the same. In the robot, a pan tilt, and a working optical fiber are driven by an x-axis movement unit and a y-axis movement unit to move on the x-y plane, and the working optical fiber is further driven by a z-axis movement unit to move along the z-axis, and driven by an a-axis movement unit to rotate around the z-axis.
    Type: Application
    Filed: September 25, 2021
    Publication date: January 13, 2022
    Inventors: Fusong YUAN, Peijun LYU
  • Publication number: 20210260752
    Abstract: A flexible peristaltic robot with a built-in bidirectional gas pump for self-regulating gas flow. The robot includes a head-end airbag, an extension-retraction airbag, a tail-end airbag, a power module, a control module and a bidirectional gas pump. When there is harmful gas or less gas in the external environment, an additional airbag is provided in the flexible peristaltic robot to form a closed internal circulation of air flow. Otherwise, the robot directly exchanges gas with the external environment to form an open external circulation of air flow. The flexible peristaltic robot can either use multiple bidirectional air pumps or use a single bidirectional air pump and multiple electrically-controlled switches to control the expansion and contraction of the airbags to enable the robot to move forward.
    Type: Application
    Filed: May 7, 2021
    Publication date: August 26, 2021
    Inventors: Fusong YUAN, Peijun LYU
  • Publication number: 20210186611
    Abstract: Provided are a controllably self-deformable optical fiber, a multifunctional laser scalpel and a laser processing device including the same. The controllably self-deformable optical fiber drives the protective layer and the optical fiber to deform through controllable deformation of a deformation portion on an outer surface of the protective layer. In addition, the optical fiber also has multiple functions, and can be applied in the treatment of complex lacunae in medical and other related fields.
    Type: Application
    Filed: March 7, 2021
    Publication date: June 24, 2021
    Inventors: Fusong YUAN, Peijun LYU
  • Publication number: 20210169603
    Abstract: Hollow vector support multifunctional protection devices and systems for minimally invasive surgery are disclosed. In an embodiment, a hollow vector support multifunctional protection device includes a protective head, a pitching mechanism for the protective head, an inner cylinder, an axial movement mechanism for the inner cylinder, and a shell. The protective head includes a flap ring, a plurality of first rotating shafts, a plurality of flaps uniformly arranged on the flap ring through the first rotating shafts, and a torsion spring arranged on the first rotating shafts. The torsion spring is configured to provide a force for opening the plurality of flaps along the first rotating shafts, and the first rotating shafts are provided with limiting structures configured to limit a maximum opening degree of the flaps.
    Type: Application
    Filed: May 13, 2019
    Publication date: June 10, 2021
    Applicant: Peking University School and Hospital of Stomatology
    Inventors: Fusong YUAN, Peijun LYU