Patents by Inventor PEIJUN LV

PEIJUN LV 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: 12029620
    Abstract: A peeling type laser tooth preparing method, apparatus and device, and a medium. Method comprises: acquiring a first STL model of a target tooth and a second STL model of a tooth preparation of the target tooth; generating a conical peeling curved-surface STL model, in a manner of taking a three-dimensional curve of a peripheral edge contour of a shoulder in the second STL model as a bottom edge; carrying out Boolean calculation on the peeling curved-surface STL model and the first STL model to obtain a third STL model; carrying out Boolean calculation on the second STL model and the third STL model to obtain a fourth STL model required to be removed; generating a multilayer laser cutting path according to the fourth STL model, controlling a laser tooth preparing device to perform the tooth preparing process of the target tooth according to the multilayer laser cutting path.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: July 9, 2024
    Assignee: Beijing University School of Stomatology
    Inventors: Fusong Yuan, Peijun Lv
  • Publication number: 20200352678
    Abstract: A peeling type laser tooth preparing method, apparatus and device, and a medium. Method comprises: acquiring a first STL model of a target tooth and a second STL model of a tooth preparation of the target tooth; generating a conical peeling curved-surface STL model, in a manner of taking a three-dimensional curve of a peripheral edge contour of a shoulder in the second STL model as a bottom edge; carrying out Boolean calculation on the peeling curved-surface STL model and the first STL model to obtain a third STL model; carrying out Boolean calculation on the second STL model and the third STL model to obtain a fourth STL model required to be removed; generating a multilayer laser cutting path according to the fourth STL model, controlling a laser tooth preparing device to perform the tooth preparing process of the target tooth according to the multilayer laser cutting path.
    Type: Application
    Filed: April 3, 2018
    Publication date: November 12, 2020
    Applicant: Beijing University School of Stomatology
    Inventors: Fusong YUAN, Peijun LV
  • Patent number: 10758317
    Abstract: A digital control laser automatic tooth preparation method and device and a tooth positioner are provided. The device includes an intra-oral three-dimensional scanner, a dental laser, an oral working end of a digital control laser tooth preparation control system, an oral and maxillofacial cone beam CT scanner, a computer, a tooth positioner, a negative-pressure suction device and a real-time monitoring device. The computer is connected respectively with the intra-oral three-dimensional scanner, the dental laser, the oral working end of the digital control laser tooth preparation control system, the oral and maxillofacial cone beam CT scanner, the negative-pressure suction device, and the real-time monitoring device. The dental laser is connected with the oral working end of the digital control laser tooth preparation control system through a light guiding arm (1).
    Type: Grant
    Filed: November 7, 2019
    Date of Patent: September 1, 2020
    Assignee: Peking University School of Stomatology
    Inventors: Fusong Yuan, Peijun Lv
  • Publication number: 20200085532
    Abstract: A digital control laser automatic tooth preparation method and device and a tooth positioner are provided. The device includes an intra-oral three-dimensional scanner, a dental laser, an oral working end of a digital control laser tooth preparation control system, an oral and maxillofacial cone beam CT scanner, a computer, a tooth positioner, a negative-pressure suction device and a real-time monitoring device. The computer is connected respectively with the intra-oral three-dimensional scanner, the dental laser, the oral working end of the digital control laser tooth preparation control system, the oral and maxillofacial cone beam CT scanner, the negative-pressure suction device, and the real-time monitoring device. The dental laser is connected with the oral working end of the digital control laser tooth preparation control system through a light guiding arm (1).
    Type: Application
    Filed: November 7, 2019
    Publication date: March 19, 2020
    Inventors: Fusong Yuan, Peijun LV
  • Patent number: 10500017
    Abstract: A digital control laser automatic tooth preparation method and device and a tooth positioner are provided. The device includes an intra-oral three-dimensional scanner, a dental laser, an oral working end, an oral and maxillofacial cone beam CT scanner, a computer, a tooth positioner, a negative-pressure suction device and a real-time monitoring device. The computer is connected respectively with the intra-oral three-dimensional scanner, the dental laser, the oral working end, the oral and maxillofacial cone beam CT scanner, the negative-pressure suction device, and the real-time monitoring device. The dental laser is connected with the oral working end of the digital control laser tooth preparation control system through a light guiding arm (1). The oral working end of the digital control laser tooth preparation control system is connected with the tooth positioner and the real-time monitoring device. The negative-pressure suction device is connected with the tooth positioner.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: December 10, 2019
    Assignee: Peking University School of Stomatology
    Inventors: Peijun Lv, Yong Wang, Yuchun Sun, Dangxiao Wang, Wenqi Ge, Ning Dai, Yongbo Wang, Jing Zhang, Chaohui Shi, Yuru Zhang, Lei Wang, Lei Ma, Haihua Cui, Huifu Li, Dongdong Wang
  • Publication number: 20160367336
    Abstract: A digital control laser automatic tooth preparation method and device and a tooth positioner are provided. The device includes an intra-oral three-dimensional scanner, a dental laser, an oral working end of a digital control laser tooth preparation control system, an oral and maxillofacial cone beam CT scanner, a computer, a tooth positioner, a negative-pressure suction device and a real-time monitoring device. The computer is connected respectively with the intra-oral three-dimensional scanner, the dental laser, the oral working end of the digital control laser tooth preparation control system, the oral and maxillofacial cone beam CT scanner, the negative-pressure suction device, and the real-time monitoring device. The dental laser is connected with the oral working end of the digital control laser tooth preparation control system through a light guiding arm(1).
    Type: Application
    Filed: July 23, 2014
    Publication date: December 22, 2016
    Inventors: PEIJUN LV, YONG WANG, YUCHUN SUN, DANGXIAO WANG, WENQI GE, NING DAI, YONGBO WANG, JING ZHANG, CHAOHUI SHI, YURU ZHANG, LEI WANG, LEI MA, HAIHUA CUI, HUIFU LI, DONGDONG WANG