Patents Assigned to Peking University School of Stomatology
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Patent number: 12220293Abstract: 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: GrantFiled: September 25, 2021Date of Patent: February 11, 2025Assignee: PEKING UNIVERSITY SCHOOL OF STOMATOLOGYInventors: Fusong Yuan, Peijun Lyu
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Patent number: 12156778Abstract: A self-ligating bracket, a double-wing spacing adjustable bracket and a dental appliance are described. The self-ligating bracket includes a bracket base plate, a first elastic support, a bracket body, and a position-limited member. A first end of the first elastic support is connected to the bracket base plate. The bracket body has a hollow structure. A second end of the first elastic support is connected to a distal end of the bracket body. The distal end of the bracket body is provided with a distal-end gap. The distal end of the bracket body is expanded radially by the second end of the first elastic support. The position-limited member is movable in an axial direction of the bracket body, and the position-limited member is sleeved on an outside of the bracket body for overcoming elastic force provided by the first elastic support and making the bracket body contract in a radial direction.Type: GrantFiled: September 14, 2022Date of Patent: December 3, 2024Assignees: Peking University School of Stomatology, Center of Huanzhengduowei Education & Science and Technology, BeijingInventors: Tian Min Xu, Kai Yuan Xu
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Patent number: 12144543Abstract: 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: GrantFiled: March 7, 2021Date of Patent: November 19, 2024Assignee: Peking University School of StomatologyInventors: Fusong Yuan, Peijun Lyu, Shanshan Liang
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Patent number: 11992262Abstract: 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: GrantFiled: September 29, 2021Date of Patent: May 28, 2024Assignee: PEKING UNIVERSITY SCHOOL OF STOMATOLOGYInventors: Fusong Yuan, Peijun Lyu, Shanshan Liang
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Patent number: 11913590Abstract: 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: GrantFiled: May 7, 2021Date of Patent: February 27, 2024Assignee: PEKING UNIVERSITY SCHOOL OF STOMATOLOGYInventors: Fusong Yuan, Peijun Lyu, Yunsong Liu, ShanShan Liang
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Patent number: 10758317Abstract: 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: GrantFiled: November 7, 2019Date of Patent: September 1, 2020Assignee: Peking University School of StomatologyInventors: Fusong Yuan, Peijun Lv
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Patent number: 10500017Abstract: 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: GrantFiled: July 23, 2014Date of Patent: December 10, 2019Assignee: Peking University School of StomatologyInventors: 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