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公开(公告)号：EP4230120A1
公开(公告)日：2023-08-23
申请号：EP23156572.2
申请日：2023-02-14
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd. , Kyungpook National University Industry-Academic Cooperation Foundation
发明人： JEONG, Hyo Sang , HAN, Su Min , KIM, Jee Hyun , LEE, Kyu Bok , CHO, Ho Seong , LEE, Weon Joon
IPC分类号： A61B5/00
摘要： Disclosed are an intraoral scanner having a tomographic imaging function capable of inspecting the condition of abrasion or filling of oral structures such as teeth and dental filling materials, and a method for detecting abrasion or filling of oral structures using the same. The intraoral scanner having a tomographic imaging function comprises: an OCT body (6) configured to obtain an internal cross-sectional image of an oral structure (T) by transmitting layer measurement light through the oral structure (T) and detecting reflected light reflected by a surface and an inside of the oral structure (T); an OCT scan probe (8) configured to irradiate the layer measurement light emitted from the OCT body (6) onto the oral structure (T) and transfer the reflected light reflected from the oral structure (T) to the OCT body (6); and a control/processing unit (48) configured to control the OCT body (6), take tomographic images of the oral structure (T) at two or more positions while proceeding in a predetermined direction along the surface of the oral structure (T), obtain two or more two-dimensional cross-sectional images of the oral structure (T), extract an abrasion or filling area for the respective two-dimensional cross-sectional images obtained, calculate cross-sectional position information of the abrasion or filling area, then arrange the position information of the abrasion or filling area obtained from the respective two-dimensional cross-sectional images in positions where the respective two-dimensional cross-sectional images have been obtained, and obtain three-dimensional shape information of the abrasion or filling area.
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公开(公告)号：EP4327978A2
公开(公告)日：2024-02-28
申请号：EP23190480.6
申请日：2023-08-09
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd.
发明人： KYON, Byung Woo , LEE, Weon Joon
摘要： Disclosed is a dental drilling device for manufacturing a dental prosthesis by processing a material made of ceramic or the like and having a passive air curtain spindle for implementing a passive air curtain to seal the device. The dental drilling device includes: a spindle 20 including a spindle shaft 22 rotatably mounted inside a drilling device housing 10 and a spindle shaft fan 24 formed in a wing shape on an outer surface of the spindle shaft 22; a fixing socket 30 fixedly mounted to one end of the drilling device housing 10 and surrounding one end of the spindle 20 at a predetermined interval; a processing drill 40 mounted on a front end of the spindle 20 to process a workpiece; and a driving motor 50 coupled to the other end of the spindle 20 to rotate the spindle 2.
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3.发明公开
公开(公告)号：EP4190231A3
公开(公告)日：2023-09-27
申请号：EP22210237.8
申请日：2022-11-29
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd.
发明人： JEONG, Hyo Sang , CHO, Min Soo , HAN, Su Min , LEE, Weon Joon
IPC分类号： A61B5/00
摘要： Disclosed are an intraoral scanner having a tomography function capable of setting a tomography area using shape information of an oral cavity, and an intraoral tomography method using the same. The intraoral scanner having the tomography function includes a shape measurement light projector (12) configured to irradiate shape measurement light for obtaining a shape image of an oral structure; a shape measurement camera (14) configured to obtain a surface shape image of the oral structure by detecting reflected light formed when the shape measurement light is reflected from a surface of the oral structure; an optical coherence tomography (OCT) body (22) configured to transmit tomography measurement light to the oral structure and detect reflected light reflected inside the oral structure S to obtain an internal cross-sectional image of the oral structure; an OCT scan probe (24) configured to irradiate the tomography measurement light emitted from the OCT body (22) onto a desired position of the oral structure and transfer the reflected light reflected from the oral structure to the OCT body (22); and a beam splitter (30) configured to superimpose optical paths of the shape measurement light irradiated from the shape measurement light projector (12) and the tomography measurement light irradiated from the OCT scan probe (24).
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公开(公告)号：EP4198447A1
公开(公告)日：2023-06-21
申请号：EP22210234.5
申请日：2022-11-29
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd.
发明人： JEONG, Hyo Sang , CHO, Min Soo , LEE, Weon Joon
IPC分类号： G01B9/02055 , G01B9/02091
摘要： Disclosed is a calibration method of optical coherence tomography device using a non-transmissive planar target. The calibration method of an optical coherence tomography device which comprises a light source (10) that generates a measurement light (L) irradiated to the surface of a calibration target (T); a beam splitter (12) that splits the measurement light (L) into a reference light (R) and a sample measurement light (LI); a reference mirror(20) that reflects the reference light (R) and generates a reflected reference light (Rl); a scan unit (30) that reflects the sample measuring light (L1) and directs the sample measuring light (L1) to the calibration target (T); and a photodetector(40) that detects an interference light (I) formed by superimposing a reflected signal light (S) formed by reflecting the sample measurement light (L1) from the calibration target (T) and the reflected reference light (R1), and obtains the surface and inside image of the calibration target (T), comprises the steps of: obtaining three-dimensional image of the surface and the inside of the calibration target (T) by scanning the calibration target (T) using the optical coherence tomography device, and extracting a surface shape image of the calibration target (T) from the obtained the three-dimensional image; and calibrating the surface shape image of the calibration target (T) obtained by the optical coherence tomography device, according to the actual surface shape of the calibration target (T).
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公开(公告)号：EP4447435A1
公开(公告)日：2024-10-16
申请号：EP24165221.3
申请日：2024-03-21
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd.
发明人： NAMGUNG, Myoung , CHO, Min Soo , LEE, Weon Joon
摘要： Disclosed is a method of calibrating a camera and a projector used in an intraoral scanner. The method of calibrating an intraoral scanner comprises the steps of: irradiating an illumination light of a third color by using a projector (12) onto a first calibration plate (100) having a background (110) of a first color and patterns (120) of a second color different from the first color, which are arranged at predetermined intervals within the background (110); obtaining an image (130) of the patterns (120) with an increased contrast by photographing the first calibration plate (100) with a camera; calibrating the camera by comparing the image (130) of the patterns (120) with actual positions of the patterns (120) formed on the calibration plate (100); irradiating the first calibration plate (100) with a patterned light having a predetermined pattern of a fourth color by using the projector (12); obtaining an image (150) of a pattern (152) formed by the patterned light of the projector (12) by photographing the first calibration plate (100) with the camera; and calibrating the projector (12) by comparing the pattern image (152) with a target irradiation position of a pattern irradiated by the projector (12), wherein the first color and the second color are set such that a contrast between the background (110) and the patterns (120) increases when the first calibration plate (100) is illuminated with the illumination light of the third color, and the predetermined pattern of the fourth color is set so as to cover the patterns (120) formed on the first calibration plate (100) and so that the contrast between the background (110) and the patterns (120) formed on the first calibration plate (100) is reduced.
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公开(公告)号：EP4327978A3
公开(公告)日：2024-06-05
申请号：EP23190480.6
申请日：2023-08-09
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd.
发明人： KYON, Byung Woo , LEE, Weon Joon
CPC分类号： B23Q11/0883 , B23Q11/127
摘要： Disclosed is a dental drilling device for manufacturing a dental prosthesis by processing a material made of ceramic or the like and having a passive air curtain spindle for implementing a passive air curtain to seal the device. The dental drilling device includes: a spindle 20 including a spindle shaft 22 rotatably mounted inside a drilling device housing 10 and a spindle shaft fan 24 formed in a wing shape on an outer surface of the spindle shaft 22; a fixing socket 30 fixedly mounted to one end of the drilling device housing 10 and surrounding one end of the spindle 20 at a predetermined interval; a processing drill 40 mounted on a front end of the spindle 20 to process a workpiece; and a driving motor 50 coupled to the other end of the spindle 20 to rotate the spindle 2.
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7.发明公开
公开(公告)号：EP4230119A1
公开(公告)日：2023-08-23
申请号：EP23156482.4
申请日：2023-02-14
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd. , Kyungpook National University Industry-Academic Cooperation Foundation
发明人： JEONG, Hyo Sang , HAN, Su Min , KIM, Jee Hyun , LEE, Kyu Bok , SON, Keun Ba Da , LEE, Weon Joon
IPC分类号： A61B5/00
摘要： Disclosed are an intraoral scanner having a tomographic imaging function capable of inspecting the state of cracks in oral structures such as teeth and dental filling materials, and a method for detecting cracks in oral structures using the same. The intraoral scanner having a tomographic imaging function comprises: an OCT body (6) configured to obtain an internal cross-sectional image of an oral structure (T) by transmitting layer measurement light through the oral structure (T) and detecting reflected light reflected by a surface and an inside of the oral structure (T); an OCT scan probe (8) configured to irradiate the layer measurement light emitted from the OCT body (6) onto the oral structure (T) and transfer the reflected light reflected from the oral structure (T) to the OCT body (6); and a control/processing unit (48) configured to control the OCT body (6), take a tomographic image of the oral structure (T) while proceeding in a predetermined direction along the surface of the oral structure (T), obtain two or more two-dimensional cross-sectional images of the oral structure (T), extract an internal crack area for the respective two-dimensional cross-sectional images obtained, calculate cross-sectional position information of the internal crack, then arrange the position information of the internal crack obtained from the respective two-dimensional cross-sectional images in positions where the respective two-dimensional cross-sectional images have been obtained, and obtain three-dimensional shape information of the internal crack.
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8.发明公开
公开(公告)号：EP4438004A1
公开(公告)日：2024-10-02
申请号：EP24165224.7
申请日：2024-03-21
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd.
发明人： JEONG, Hyo Sang , CHO, Min Soo , LEE, Weon Joon
CPC分类号： A61C9/0073 , A61C13/0004 , A61C5/77
摘要： Disclosed is a method of obtaining the shape of a crown region for manufacturing a crown prosthesis by using an intraoral scanner having a tomographic imaging function. The method of obtaining the shape of a crown region comprises the steps of: obtaining a three-dimensional surface shape image of an oral structure including a tooth on which tooth deletion has been performed; setting a surface edge of a tooth deletion region as a location of a region of interest (52); scanning a surface shape and an internal cross-section of the oral structure at a predetermined location of the oral structure, and obtaining a partial surface shape image and a partial internal cross-sectional image of the oral structure; detecting a location of a crown margin (56) corresponding to an edge of a region where a tooth was actually deleted from the partial internal cross-sectional image; merging the location of the crown margin (56) with a surface image of a tooth (50), and causing a margin of the tooth deletion region obtained from a surface shape image of the tooth (50) to extend to the location of the crown margin (56).
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公开(公告)号：EP4389062A1
公开(公告)日：2024-06-26
申请号：EP23212081.6
申请日：2023-11-24
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd.
发明人： HA, Seung Suk , KIM, Beom Mo , SHIM, Young Gil , KIM, Yong Han , LEE, Weon Joon
CPC分类号： A61C13/0004 , A61C13/0006 , A61C9/004 , A61C9/0053 , B23C1/00
摘要： Disclosed are an apparatus and method for processing a dental prosthesis that can reduce the time required for processing work by performing processing preparation work in advance, and can improve convenience by minimizing the movement path of a user. The apparatus for processing a dental prosthesis comprises: an intraoral scanner (10) configured to obtain oral shape data by scanning an oral cavity of a patient; a remote control unit (20) comprising CAD/CAM software configured to generate processing data for a dental prosthesis from the obtained oral shape data; and a prosthesis processing unit (30) configured to perform processing preparation work for a prosthesis and to process the dental prosthesis according to prosthesis processing data transmitted from the remote control unit (20), and having a user interface (40) through which a processing preparation command for performing the processing preparation work is directly entered.
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10.发明公开
公开(公告)号：EP4383027A1
公开(公告)日：2024-06-12
申请号：EP23212080.8
申请日：2023-11-24
申请人： Huvitz Co., Ltd. , Ossvis Co., Ltd.
IPC分类号： G05B19/4065 , A61C13/00 , B23Q17/09 , B23Q3/155
CPC分类号： G05B2219/4517220130101 , G05B2219/4516720130101 , A61C13/0003 , G05B19/4065 , G05B2219/5023920130101 , B23Q3/155 , B23Q17/0995 , G05B2219/3725220130101
摘要： Disclosed are a dental prosthesis processing device that processes a workpiece made of ceramic or the like into a prosthesis of a desired shape, and a method of managing a processing tool used therein. The dental prosthesis processing device includes: one or more processing tools (40) for processing a workpiece (1) into a prosthesis of a predetermined shape; a spindle (20) on which the processing tools (40) are replaceably mounted and that is spatially movable in position; a processing tool replacement obstruction part (30) located in close proximity to the processing tools (40) and/or the spindle (20) and configured to obstruct the processing tools (40) from being replaced; and a controller (50) configured to determine whether to replace the processing tools (40), wherein the controller (50) brings the processing tools (40) and/or the spindle (20) and the processing tool replacement obstruction part (30) close to each other, thereby preventing the processing tools (40) from being replaced if replacement of the processing tools (40) is not necessary, and the controller (50) moves the processing tools (40) and/or the spindle (20) and the processing tool replacement obstruction part (30) away from each other, thereby allowing a user to replace the processing tools (40) if the replacement of the processing tools (40) is necessary.
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