WO2015174741A1 - Dispositif de balayage 3d pour clinique dentaire - Google Patents

Dispositif de balayage 3d pour clinique dentaire Download PDF

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Publication number
WO2015174741A1
WO2015174741A1 PCT/KR2015/004816 KR2015004816W WO2015174741A1 WO 2015174741 A1 WO2015174741 A1 WO 2015174741A1 KR 2015004816 W KR2015004816 W KR 2015004816W WO 2015174741 A1 WO2015174741 A1 WO 2015174741A1
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WO
WIPO (PCT)
Prior art keywords
light
housing
unit
dental
reflected light
Prior art date
Application number
PCT/KR2015/004816
Other languages
English (en)
Korean (ko)
Inventor
문안오
임형근
전진표
Original Assignee
주식회사 바텍
(주)바텍이우홀딩스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 바텍, (주)바텍이우홀딩스 filed Critical 주식회사 바텍
Priority claimed from KR1020150066808A external-priority patent/KR101699250B1/ko
Publication of WO2015174741A1 publication Critical patent/WO2015174741A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/04—Measuring instruments specially adapted for dentistry

Definitions

  • the present invention relates to a dental three-dimensional scanner, and more particularly, to a dental three-dimensional scanner is easy to operate for scanning the upper or lower jaw in the oral cavity can be adjusted by rotating the irradiation direction of the measurement light separately from the body.
  • a dental clinic or the like identifies a tissue structure in the oral cavity such as a tooth through an impression taking process on a patient's teeth, and performs treatment and treatment of the affected part of the patient based on this.
  • problems such as material consumption and cross-infection and the likelihood of breakage and preservation of the manufactured impression body or plaster model are generated.
  • the method widely used to determine the state of the oral cavity is a two-dimensional transmission obtained by inserting a sheet-like film or digital sensor into the oral cavity and fixing it near the affected area, and then projecting radiation such as x-rays to the affected area of the oral cavity. This is using video.
  • this method has a problem in that an error may occur in the process of projecting and displaying a three-dimensional structure on a two-dimensional plane.
  • the patient may be exposed to a large amount of radiation, and the patient's economic burden and complexity at the implementation stage may cause many clinical problems.
  • the dental three-dimensional scanner is usually in the form of a bar or a stick, which is inconvenient to grip, and the direction in which the measurement light is irradiated is fixed.
  • the cable is twisted, which causes a problem in the scanner device.
  • the present invention is to solve the problems of the prior art, a grippable handle is formed and the irradiation direction of the measurement light can be adjusted separately from the main body for the scan of the maxillary or mandible in the oral cavity without problems such as cable twist with one hand It relates to a dental three-dimensional scanner that is easy to operate.
  • the light source unit in the dental three-dimensional scanner for obtaining three-dimensional data of the structure in the oral cavity, the light source unit, and generates the measurement light with the light of the light source unit,
  • a body housing including an optical unit configured to generate second reflected light from the first reflected light reflected by the light source, an imaging unit configured to sense the second reflected light, and a controller configured to generate the 3D data based on a sensing result of the imaging unit;
  • a tip housing rotatably coupled to the body housing and having an opening through which the measurement light and the first reflection light pass, and a reflection plate reflecting the measurement light and the first reflection light toward the structure and the optical unit, respectively.
  • the dental three-dimensional scanner of the present invention for achieving the above object, may further include a handle housing coupled in a direction crossing the body housing.
  • the tip housing may be rotatably coupled to the body housing through a rotating member disposed between the body housing and the tip housing.
  • the dental three-dimensional scanner of the present invention for achieving the above object, further comprises a rotation drive unit for receiving a drive signal to rotate the tip housing, the control unit receives the rotation command to generate the drive signal can do.
  • the rotation driving unit may rotate the tip housing by 180 degrees according to the input of the driving signal, and the control unit may determine whether the 3D data is about maxillary or mandible in response to the driving signal. .
  • the present invention is unlike the conventional dental three-dimensional scanner is formed by the grip housing that is easy to operate with one hand, the tip housing to which the measurement light is irradiated is configured to be rotatable without rotating the scanner device itself in the oral cavity Scanning of the upper or lower jaw has an easy effect.
  • FIG. 1 is a view showing a dental three-dimensional scanner according to an embodiment of the present invention.
  • Figure 2 is a perspective view schematically showing a dental three-dimensional scanner according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view showing a dental three-dimensional scanner according to an embodiment of the present invention.
  • Figure 4 is a cross-sectional view showing a dental three-dimensional scanner according to another embodiment of the present invention.
  • FIG. 5 is a schematic cross-sectional view of the dental three-dimensional scanner of FIG.
  • FIG. 6 is a schematic cross-sectional view of the dental three-dimensional scanner of FIG. 2 during an oral maxillary scan.
  • FIG. 6 is a schematic cross-sectional view of the dental three-dimensional scanner of FIG. 2 during an oral maxillary scan.
  • first and second are intended to distinguish one component from another component, and the scope of rights should not be limited by these terms.
  • first component may be named a second component
  • second component may also be named a first component.
  • FIG. 1 is a view showing a dental three-dimensional scanner according to an embodiment of the present invention
  • Figure 2 is a perspective view schematically showing a dental three-dimensional scanner according to an embodiment of the present invention, an embodiment of the present invention
  • Dental three-dimensional scanner according to, the handle housing 100, the body housing 200, the light source unit 210, the imaging unit 220, the control unit 230, the optical unit 240, the rotation drive unit 250, the tip It may include a housing 300 and the rotating member 400.
  • the light source unit 210 emits light for scanning the intraoral structure of the dental patient. At this time, the light source unit 210 emits light under the control of the controller 230, that is, according to the output position and the output angle set in the controller 230.
  • the controller 230 stores the output position information and the output angle information of the controlled light, and generates the dental image data with reference to the stored output position information and the output angle information.
  • the arrangement of the light source unit 210 may be changed depending on the shape of the oral cavity scanner, and the light output element is preferably a laser diode or a light emitting diode (LED), which is advantageous for miniaturization, but is not limited thereto.
  • the imaging unit 220 detects the second reflected light input through the optical unit 240 and outputs the detected second reflected light to the controller 230.
  • the optical sensor of the imaging unit 220 may be a light receiving device such as a complementary metal-oxide semiconductor (CMOS), a charged coupled device (CCD), or a position sensitive device (PSD), but is not limited thereto.
  • CMOS complementary metal-oxide semiconductor
  • CCD charged coupled device
  • PSD position sensitive device
  • the controller 230 receives the second reflected light from the imaging unit 220 and processes the input second reflected light to generate three-dimensional data. That is, the controller 230 obtains the position information corresponding to the electric signal determined according to the second reflected light from the imaging unit 220, that is, the height value for each position of the structure in the oral cavity, and integrates the obtained values. Generate dimensional data.
  • the optical unit 240 optically processes the light irradiated from the light source unit 210 to generate measurement light, and optically processes the first reflected light formed by reflecting the measurement light to the intraoral structure of the dental patient. 2 generates reflected light and provides the generated second reflected light to the imaging unit 220.
  • the optical unit 240 may have a structure in which the paths of the measurement light and the first reflected light are the same, or structures in which the paths of the measurement light and the first reflected light are different, but are not limited thereto.
  • the rotation driver 250 rotates the tip housing 200 by receiving a driving signal from the controller 230.
  • the controller 230 may generate a driving signal by receiving a rotation command through a switch input terminal (not shown) formed outside the handle housing 100 or the body housing 200, but is not limited thereto.
  • the drive signal may be generated by determining that the rotation command is input to satisfy the predetermined condition, for example, the completion of the mandatory three-dimensional data generation.
  • the rotation driver 250 may rotate the tip housing 200 by a predetermined angle or 180 degrees when the driving signal is input from the controller 230, thereby allowing a dentist or the like to directly fit the maxillary direction and the mandibular direction. Discomfort to adjust the degree of rotation of the tip housing 200 can be reduced.
  • the control unit 230 determines whether the 3D data is related to the maxillary or mandible in response to the generation of the drive signal, through which the relevant information is added to the 3D data whenever the drive signal is generated. It will indicate whether the dimensional data is about maxillary or mandibular.
  • the controller 230 adds the maxillary and mandibular information to the 3D data, so that the control unit 230 causes the external device to invert the display image in a situation in which the control unit 230 transmits the 3D data to the external device. To make a decision.
  • FIG 3 is a cross-sectional view showing a dental three-dimensional scanner according to an embodiment of the present invention, the optical unit 240 of the dental three-dimensional scanner according to an embodiment of the present invention, the first optical system 241 and the first 2 optical system 242 is included.
  • the first optical system 241 optically processes the light irradiated from the light source unit 210 to generate measurement light, and provides the generated measurement light to the reflector plate 310. At this time, the first optical system 241 provides a different focal length according to the refractive index of the lens mounted therein. The longer the focal length, the smaller the measurement area is. On the other hand, when the first optical system 241 adopts a triangulation method or a stereo method, the first optical system 241 may generate a measurement light having a pattern, and may include a filter for this purpose.
  • a method in which the light source unit 210 emits light in a pattern form may be used.
  • the second optical system 242 processes the first reflected light from the reflecting plate 310 to generate the second reflected light, and provides the generated second reflected light to the imaging unit 220.
  • the second optical system 242 may include a pinhole member (not shown), which is a component for providing a confocal method, and accordingly, the second optical system 242.
  • the first reflected light focused by the lens mounted inside the image is formed in the pinhole formed in the pinhole member, and at this time, the intensity of the light transmitted through the pinhole formed in the pinhole member even if the structure in the oral cavity of the dental patient is slightly out of the position corresponding to the focal length Decreases rapidly.
  • the imaging unit 220 may obtain the height information of the structure in the oral cavity in the dental patient by location by sensing the intensity of the light transmitted through the pinhole member.
  • the second optical system 242 should be able to adjust a focal length of a lens mounted therein to provide a confocal method, and the second optical system 242 may include a liquid lens (not shown) therein.
  • the controller 230 may control the intensity of the voltage applied to the liquid lens or the application time to adjust the focal length, that is, the refractive index, of the liquid lens, and the second optical system 242 measures the inside thereof.
  • the controller 230 adjusts the focal length by moving the lens in a direction parallel to the measurement light using a motor (not shown) or the like. Can be used.
  • FIG. 4 is a cross-sectional view showing a dental three-dimensional scanner according to another embodiment of the present invention, the optical unit 240 of the dental three-dimensional scanner according to another embodiment of the present invention, the beam splitter 243 and the third The optical system 244 is included.
  • the beam splitter 243 provides the light irradiated from the light source unit 210 in the direction of the reflecting plate 310, forms a path for the second reflected light from the third optical system 244, and the second reflected light. To be provided to the imaging unit 220. That is, the beam splitter 243 transmits the light irradiated from the light source unit 210 and reflects the second reflected light from the third optical system 244, thereby not only the light irradiated from the light source unit 210 but also the second reflected light. Allows you to use a common light path.
  • the third optical system 244 processes the first reflected light from the reflecting plate 310 to generate second reflected light, and provides the generated second reflected light to the beam splitter 243.
  • the third optical system 244 must be able to adjust the focal length of the lens mounted therein to provide a confocal method, and the third optical system 244 includes a liquid lens (not shown) therein.
  • a method of controlling the focal length, that is, the refractive index, of the liquid lens by controlling the intensity of the voltage applied to the liquid lens or the application time may be used, and the third optical system 244 measures the inside thereof.
  • the controller 230 adjusts the focal length by moving the lens in a direction parallel to the measurement light using a motor (not shown) or the like. Can be used.
  • the dental three-dimensional scanner is formed to have a pistol (Handgun) shape as a whole, the handle housing 100, the cross coupling to the upper portion of the handle housing 100 Body housing 200, and a tip housing 300 coupled along a long axis of the body housing 200 so that one end thereof is rotatable at the front end of the body housing 200.
  • a pistol Hexgun
  • the handle housing 100 may be formed in a separate configuration from the body housing 200, and may be detachably attached to the body housing 200 or may be integrally formed with the body housing 200 according to the user's convenience.
  • the handle housing 100 may be formed in a rod shape having a predetermined length suitable for a user to hold with one hand, but is not limited thereto and may be appropriately modified according to the purpose.
  • the handle housing 100 may include a control button (not shown) that controls an on / off or intensity of the light source unit 210, an operation of the rotation driving unit 250, and the like outside. Through the control button, the user can control the operation of the dental three-dimensional scanner with one hand, and the other hand can perform another operation.
  • the handle housing 100 is for user convenience and may be omitted if necessary, and the user may of course use the body housing 200 with one hand instead of the handle housing 100. In this case, the control button may be moved to an appropriate position of the body housing 200.
  • the body housing 200 is coupled to the upper part of the handle housing 100 in the direction in which the long axis intersects the long axis of the handle housing 100, and is formed in a streamlined shape that becomes narrower toward the one end or the other end from the center part. Can be.
  • Tip housing 300 is one end is rotatably coupled to the body housing 200, the tip housing 300 may be coupled to rotatable directly to the body housing 200, but is not limited to this body housing 200 And the rotatable member 400 may be rotatably coupled to the body housing 200 through the rotating member 400 disposed between the tip housing 300.
  • Rotating member 400 for this purpose is a ring shape of a predetermined width is fixed around the other end of the tip housing 300 while the other end of the rotating member 400 is coupled around the rotatable to the front end of the body housing 200 It may be in the form.
  • the inside of the other end of the tip housing 300 is formed as an inclined surface, and reflects the measurement light by the light generated from the light source unit 210 on the inclined surface in the direction to be scanned and captures the first reflected light reflected from the scan object.
  • a reflector 310 may be formed to reflect in the direction of the portion 220. In this case, the angle of the reflector 310 may be adjusted according to the driving of the controller 230 to provide a different reflection angle with respect to the measurement light and the first reflection light, but is not limited thereto.
  • the other end of the tip housing 300 is provided with an opening, such as a transparent window, that is, a transmission window, through which the measurement light and the first reflected light are transmitted at positions facing the reflecting plate 310.
  • a dentist or the like is attached to the inclined surface of the other end of the tip housing 300 by a control member (not shown) of the rotating member or the rotation driver 250.
  • the tip housing 300 is rotated to face the light, the light generated from the light source unit 210 is reflected by the reflector 310 in the form of measurement light and irradiated to the lower teeth, and the first reflected light reflected from the lower teeth is again.
  • the reflected light reflected by the reflector 310 is received by the imaging unit 220 in the form of second reflected light, and the second reflected light received by the imaging unit 220 is converted into a 3D data signal by the controller 230.
  • the tip housing 300 may be rotated in the mandible direction by the drive signal and the rotation driver 250 of the control unit 230, the control unit 230 determines the second reflected light as a signal from the mandible 3
  • the dimension data can be controlled to include information indicating that it is a mandible.
  • the dentist or the like is attached to the inclined surface of the other end of the tip housing 300 through a control button (not shown) of the rotating member or the rotation driver 250.
  • the tip housing 300 is rotated to face the light, the light generated from the light source unit 210 is reflected by the reflecting plate 310 in the form of measurement light and irradiated to the upper teeth, and the first reflected light reflected from the upper teeth is reflected again.
  • the reflected light is reflected by the 310 to the image pickup unit 220 in the form of the second reflected light, the second reflected light received by the image pickup unit 220 is converted into a three-dimensional data signal in the controller 230.
  • the tip housing 300 may be rotated in the maxillary direction by the drive signal of the controller 230 and the rotation driver 250.
  • the controller 230 determines the second reflected light as a signal from the maxilla. And it can be controlled to include the information indicating the maxillary in the three-dimensional data.
  • the dental three-dimensional scanner of the present invention is configured such that the tip housing 300 is rotatable, so that only the tip housing 300 is rotated to scan the upper or lower teeth, and the handle is rotated through the rotating member 400.
  • the tip housing 300 can be easily rotated using the index finger of the hand gripping the housing 100, thereby improving the efficiency of the scan operation.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne un dispositif de balayage 3D destiné à une clinique dentaire, qui comporte une région de guidage, qui est exposée à une lumière laser, qui est conçue pour être capable de tourner, de manière à faciliter les manipulations de balayage des maxillaires et des mandibules dans la bouche. Le dispositif de balayage 3D destiné à une clinique dentaire de la présente invention, qui est un dispositif de balayage 3D destiné à une clinique dentaire permettant d'obtenir des données 3D sur la structure à l'intérieur de la bouche, comprend un logement de corps et un logement de pointe. Le logement de corps comprend : une unité source de lumière ; une unité optique qui génère une lumière de mesure à partir de la lumière en provenance de l'unité source de lumière, et qui génère une première lumière réfléchie et une seconde lumière réfléchie qui sont réfléchies vers la structure ; une unité de capture d'image qui détecte la seconde lumière réfléchie ; et une unité de commande qui génère les données 3D en tant que résultats détectés par l'unité de capture d'image. Le logement de pointe est accouplé au logement de corps de manière à pouvoir tourner et comprend : une ouverture à travers laquelle passent la lumière mesurée et la première lumière réfléchie ; et une plaque réfléchissante qui réfléchit la lumière mesurée et la première lumière réfléchie vers la structure et l'unité optique, respectivement.
PCT/KR2015/004816 2014-05-14 2015-05-13 Dispositif de balayage 3d pour clinique dentaire WO2015174741A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20140058034 2014-05-14
KR10-2014-0058034 2014-05-14
KR1020150066808A KR101699250B1 (ko) 2014-05-14 2015-05-13 치과용 3차원 스캐너
KR10-2015-0066808 2015-05-13

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WO2015174741A1 true WO2015174741A1 (fr) 2015-11-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110013340A (zh) * 2019-04-29 2019-07-16 安然医疗器械(天津)有限公司 一种牙科数字化远程三维扫描装置和方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200366230Y1 (ko) * 2004-08-18 2004-11-04 주식회사바텍 회전가능한 헤드를 갖는 구강 카메라
KR101176770B1 (ko) * 2012-03-22 2012-08-23 추상완 치과용 3차원 스캐너 및 이를 이용한 스캐닝 방법
KR20130019296A (ko) * 2011-08-16 2013-02-26 주식회사 오라픽스 구강 내 스캐닝 시스템 및 스캐닝 방법
KR101371211B1 (ko) * 2013-07-11 2014-03-10 김성국 구강용 스캐너
KR20140028839A (ko) * 2012-08-31 2014-03-10 주식회사 오라픽스 구강 내 자동 스캐닝 시스템 및 스캐닝 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200366230Y1 (ko) * 2004-08-18 2004-11-04 주식회사바텍 회전가능한 헤드를 갖는 구강 카메라
KR20130019296A (ko) * 2011-08-16 2013-02-26 주식회사 오라픽스 구강 내 스캐닝 시스템 및 스캐닝 방법
KR101176770B1 (ko) * 2012-03-22 2012-08-23 추상완 치과용 3차원 스캐너 및 이를 이용한 스캐닝 방법
KR20140028839A (ko) * 2012-08-31 2014-03-10 주식회사 오라픽스 구강 내 자동 스캐닝 시스템 및 스캐닝 방법
KR101371211B1 (ko) * 2013-07-11 2014-03-10 김성국 구강용 스캐너

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110013340A (zh) * 2019-04-29 2019-07-16 安然医疗器械(天津)有限公司 一种牙科数字化远程三维扫描装置和方法

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