WO2011142617A2 - Appareil d'affichage d'une gamme d'exposition aux rayons x pour appareil de radiographie dentaire - Google Patents

Appareil d'affichage d'une gamme d'exposition aux rayons x pour appareil de radiographie dentaire Download PDF

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Publication number
WO2011142617A2
WO2011142617A2 PCT/KR2011/003539 KR2011003539W WO2011142617A2 WO 2011142617 A2 WO2011142617 A2 WO 2011142617A2 KR 2011003539 W KR2011003539 W KR 2011003539W WO 2011142617 A2 WO2011142617 A2 WO 2011142617A2
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WO
WIPO (PCT)
Prior art keywords
ray
collimator
light
irradiation range
dental
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Application number
PCT/KR2011/003539
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English (en)
Korean (ko)
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WO2011142617A3 (fr
Inventor
이레나
김영환
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(주) 윌메드
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Application filed by (주) 윌메드 filed Critical (주) 윌메드
Publication of WO2011142617A2 publication Critical patent/WO2011142617A2/fr
Publication of WO2011142617A3 publication Critical patent/WO2011142617A3/fr

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    • A61B6/51—
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/06—Diaphragms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/08—Auxiliary means for directing the radiation beam to a particular spot, e.g. using light beams

Definitions

  • the present invention relates to a dental X-ray imaging apparatus, and more particularly, to a dental X-ray panoramic or computerized tomography apparatus for photographing a dental region in a rotational manner.
  • a sensor or a film is inserted into the oral cavity, an X-ray unit for intraoral X-ray imaging is placed outside the patient, and after irradiation of X-rays, the position of the sensor is again changed. Use the change method to continue reshooting.
  • the second method is to use a panoramic or computed tomography device to place the head of the patient between the X-ray generator and the X-ray detector, and then perform X-ray imaging with a constant frame while the X-ray generator and the X-ray detector rotate. have.
  • X-rays are continuously photographed by radiating, transmitting, and detecting an examinee, and a computer image is processed to determine a continuous array of teeth and maxillary or mandible as a single image.
  • the photographing apparatus requires expensive X-ray equipment that rotates about an axis, and because of the large rotation radius, a lot of space of the equipment is required.
  • the amount of X-rays received by the patient is increased because the image is acquired through more than a dozen X-rays.
  • Such panoramic or computed tomography apparatus includes a collimator for adjusting the irradiation area of the X-rays irradiated from the X-ray generator.
  • the collimator is a kind of diaphragm installed in the X-ray generator, and adjusts the radiation area of the X-rays irradiated to the outside while the size of the opening is adjusted.
  • the conventional apparatus has a disadvantage in that it is difficult to identify the X-ray irradiation area controlled by the collimator and radiated to the patient's teeth. That is, it is difficult to match the irradiation area of the X-ray with the portion to be photographed, and there is a problem in that the photographing is not precisely performed.
  • the present invention has been made to solve the above problems, to provide a dental X-ray imaging apparatus that can be accurately photographed by checking the X-ray irradiation area from the outside and correcting the X-ray irradiation area.
  • the X-ray irradiation range display device of the dental X-ray imaging apparatus is a dental panoramic imaging apparatus in which an X-ray generator and an X-ray detector are installed to face each other on a rotating body that rotates a tooth part of a human body.
  • a collimator installed in the X-ray generator to determine an X-ray irradiation area of the tooth region, a light irradiation unit displaying upper and lower boundary lines of X-rays irradiated through the collimator, and upper and lower boundary lines of the X-rays irradiated through the collimator and the It includes a controller for matching the irradiation area of the light irradiated from the light irradiation unit.
  • the expression matching does not mean that the two light sources are irradiated in exactly the same area. It is technically difficult for two light sources that differ in size and type and location of light sources to match completely, including at some level of error.
  • the light irradiation part is composed of a light source, a screw, and a driving motor, and a light output source having excellent straightness is used as the light source.
  • a light source for example, lasers, laser LEDs, LEDs, and the like are suitable for use as a light source.
  • the light source used for practicing the present invention is not limited to the above examples.
  • the collimator is installed in front of the X-ray generator up and down / left and right, and the first, 2, 3, 4 control plate to form an opening for determining the viewing angle of the X-ray, the slide is coupled to each of the control plate to move the control plate A rail for guiding the first, second, third, and fourth lead screws coupled to the respective throttle plates to move the throttle plate, and coupled to the first, second, third and fourth lead screws to rotate the lead screw.
  • the light irradiation unit is coupled to each of the light source disposed in each of the left and right of the collimator, the fifth and six lead screws and the fifth and six lead screws to be coupled to the lower portion of the light source to move the light source up and down And fifth and sixth driving motors that ring and rotate.
  • the light irradiation part may further include a light source above and below the collimator, and a lead screw and a driving motor for moving the light source.
  • the controller adjusts the opening of the collimator, the collimator upward and downward from the first vertical line (d) and the first vertical line from the X-ray light source of the X-ray generator to the virtual plane of the opening formed in the collimator
  • the controller may adjust the opening of the collimator so that the X-ray of the X-ray generator can be irradiated to match the position of the light irradiated by the light irradiation unit.
  • the X-ray irradiation range display device for dental X-ray imaging apparatus as described above, by easily interlocking the X-ray irradiation area with respect to the X-ray irradiation area in conjunction with the X-ray irradiation area from the outside, and easily adjust the collimator By correcting the X-ray irradiation area can be obtained an effect that can accurately photograph the desired area.
  • FIG. 1 is a front view of an X-ray irradiation range display device for dental X-ray imaging apparatus according to an embodiment of the present invention.
  • FIG. 2 is a plan view of a collimator of an X-ray irradiation range display device for dental X-ray imaging apparatus according to an embodiment of the present invention.
  • FIG. 3 shows another embodiment of the collimator of FIG. 2.
  • FIG. 4 is an operation of the X-ray irradiation range display device for a dental X-ray imaging apparatus according to an embodiment of the present invention.
  • jaw support 110 rotating body
  • X-ray generator 176 X-ray detector
  • the X-ray irradiation range display device for the dental X-ray imaging apparatus is the main configuration of the rotating body 110, collimator 120, light irradiation unit 150, controller, etc. Include as.
  • the rotating body 110 is configured to rotate the teeth of the human body.
  • Rotator 110 may rotate around the head of the patient.
  • the rotating body 110 is rotatably coupled to the upper portion of the inspection apparatus 100 and rotated by a motor embedded in the upper portion of the inspection apparatus 100.
  • An X-ray generator 175 is provided on the right side of the rotating body 110, and an X-ray detector 176 is provided on the left side.
  • the X-ray generator 175 and the X-ray detector 176 are installed on the rotating body 110 to face each other.
  • the collimator 120 installed in the X-ray generator 175 is a kind of X-ray aperture for determining an X-ray irradiation region for a tooth part, and is the same as the configuration shown in FIG. 2.
  • the field of view seen through the collimator 120 in the X-ray generator 175 becomes an area where X-rays of the X-ray generator 175 are irradiated.
  • the collimator 120 typically has a rectangular adjustable opening 120a.
  • the X-ray passes through the opening 120a, passes through the tooth portion to be examined, and reaches the X-ray detector 176 side.
  • the light irradiation part 150 is light for displaying an X-ray irradiation area passing through the opening 120a to reach the inspection site. That is, the operator can know whether the X-ray irradiation area for reaching the patient's examination site is set correctly through the area of light reflected by the light irradiation unit 150 on the inspection site.
  • the light irradiator 150 is configured such that the position of the irradiated light coincides with the irradiated area of the X-rays irradiated through the collimator 120. Since the X-ray irradiation region is determined by adjusting the opening 120a of the collimator 120, the X-rays are changed by changing the positions of the light sources 151 and 152 of the light irradiation unit 150 according to the adjustment of the opening 120a of the collimator 120. The area to which the line is to be irradiated can be directly confirmed by the light irradiated from the light irradiation unit 150. The movement of the light sources 151 and 152 in the light irradiation unit 150 according to the opening 120a of the collimator 120 is automatically implemented by the controller.
  • the controller may include a microcontroller for performing motion control, a hardware including a circuit configured with various electronic components such as a driver, a filter, a converter, and a general-purpose computer for driving a communication interface and control software for controlling the hardware.
  • a microcontroller for performing motion control
  • a hardware including a circuit configured with various electronic components such as a driver, a filter, a converter, and a general-purpose computer for driving a communication interface and control software for controlling the hardware.
  • the collimator 120 is installed up, down, left, and right in front of the X-ray generator 175 and includes first, second, third, and fourth adjustment plates forming an opening 120a for determining the viewing angle of the X-ray.
  • first, second, third, and fourth lead screw 131 is coupled to each control plate to move the control plate , 132, 133, 134, and first, 2, 3, and 4 drive motors 141, which are coupled to the first, second, third, and fourth lead screws 131, 132, 133, and 134 to rotate the lead screw.
  • first, second, third, and fourth lead screws 131, 132, 133, and 134 to rotate the lead screw.
  • the first, second, third, and fourth control plates 121, 122, 123, and 124 are rotated by the first, second, third, and fourth driving motors 141, 142, 143, and 144.
  • the lead screws 131, 132, 133, and 134 can be moved independently on the rails 125 and 126, respectively.
  • the size of the opening 120a is adjusted by moving the first, second, third, and fourth adjustment plates 121, 122, 123, and 124.
  • the light irradiator 150 is screwed to the light sources 151 and 152 arranged at the left and right sides of the collimator 120 and the lower portions of the light sources 151 and 152, respectively, to move the light sources 151 and 152 up and down.
  • sixth lead screws 155 and 156 and fifth and sixth driving motors 165 and 166 coupled to and rotated by the fifth and sixth lead screws 155 and 156, respectively.
  • Light sources 151 and 152 disposed on both sides of the collimator 120 are positioned up and down by fifth and six lead screws 155 and 156 rotated by fifth and sixth driving motors 165 and 166 respectively. It is possible to move.
  • the light sources 151 and 152 disposed on both sides of the collimator 120 may move up and down to display upper and lower boundary portions of the inspection site to which X-rays are to be irradiated.
  • the light irradiation unit 150 may further include a lead screw and a driving motor for moving the light sources 151 and 152 and the light sources 151 and 152 above and below the collimator 120. That is, the light sources 151 and 152 disposed above and below the collimator 120 may further display the upper and lower boundary portions as well as the upper and lower portions of the inspection region to which X-rays are to be irradiated.
  • the light sources 151 and 152 may include a laser light source and its driving circuit or an LED light source and an LED driving circuit.
  • the controller adjusts the opening 120a of the collimator 120 (A1), and the collimator from the light source of the X-ray generator 175.
  • the controller is configured to determine the vertical angle of view of the light source of the X-ray light source ⁇ t from the first vertical line d corresponding to the distance from the X-ray light source to the collimator 120 and the second vertical lines Xt and Xb indicating the opening degree of the collimator 120. , ⁇ b) can be calculated, and the upper and lower boundary regions of the X-ray light source can be known from the vertical viewing angles ⁇ t and ⁇ b and the distance D to the irradiation area.
  • the controller moves the light irradiation unit 150 to the upper and lower boundary regions of the X-ray light source to automatically illuminate the light, so that the operator checks the upper and lower boundary regions of the X-ray light source by the irradiated light and opens the collimator 120.
  • the output area of the X-rays can be aligned with the desired area.
  • the controller when the operator determines the inspection area by the X-ray generator 175 and moves the light irradiation unit 150 to the boundary line of the inspection area to irradiate light, the controller is controlled by the light irradiation unit 150.
  • the opening 120a of the collimator 120 may be automatically adjusted so that the X-ray of the X-ray generator 175 may be irradiated according to the position of the output light.
  • the controller adjusts the opening degree of the collimator 120 in accordance with the wide area irradiated by the light irradiation unit 150, the distance D from the X-ray light source to the irradiation area and the upper and lower boundary lines of the irradiation area. Since the position coordinates Yt and Yb indicating the state are known, the upper and lower viewing angles ⁇ t and ⁇ b can be calculated inversely, and the collimator 120 can be calculated from the upper and lower viewing angles ⁇ t and ⁇ b and the first vertical line d. It is possible to calculate second vertical lines Xt and Xb indicating the degree of opening.
  • the operator photographs the teeth by the X-ray generator 175 in a panoramic manner by rotating the rotating body 110 while the patient to examine the teeth is sitting on the chair 101 of the inspection apparatus 100 and The teeth will be examined.
  • the upper and lower regions of the inspection area are determined by adjusting the opening degree of the collimator 120.
  • the light irradiation unit 150 irradiates light to the open region of the collimator 120 to visually check the upper and lower boundaries, and then, X-ray Can be investigated.
  • the panorama area can be performed by looking at the irradiation area of the light and confirming the inspection area of the X-ray.

Abstract

La présente invention concerne un appareil d'affichage d'une gamme d'exposition aux rayons X pour appareil de radiographie dentaire. L'appareil d'affichage d'une gamme d'exposition aux rayons X est destiné à un appareil de radiographie dentaire comprenant un corps tournant qui tourne autour de la dent de l'être humain, et un générateur de rayons X et un détecteur de rayons X montés sur le corps tournant de manière à ce que le générateur de rayons X et le détecteur de rayons X soient en regard l'un de l'autre, l'appareil d'affichage d'une gamme d'exposition aux rayons X comprenant : un collimateur monté sur le générateur de rayons X afin de déterminer une gamme d'exposition des dents aux rayons X ; une unité de projection de lumière qui indique les limites supérieure et inférieure des rayons X projetés à travers le collimateur ; et une unité de commande qui réconcilie grossièrement les limites supérieure et inférieure des rayons X projetés à travers le collimateur et la gamme d'exposition de la lumière projetée par l'unité de projection de lumière. L'appareil décrit ci-dessus destiné à afficher une gamme d'exposition aux rayons X pour appareil de radiographie dentaire peut facilement vérifier, de l'extérieur, la gamme d'exposition des dents aux rayons X par projection d'une lumière, dont la gamme d'exposition correspond à la gamme d'exposition aux rayons X, et permet de corriger la gamme d'exposition aux rayons X par ajustement du collimateur, cela permettant de photographier avec précision la partie souhaitée.
PCT/KR2011/003539 2010-05-14 2011-05-13 Appareil d'affichage d'une gamme d'exposition aux rayons x pour appareil de radiographie dentaire WO2011142617A2 (fr)

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Application Number Priority Date Filing Date Title
KR10-2010-0045404 2010-05-14
KR1020100045404A KR101137156B1 (ko) 2010-05-14 2010-05-14 치과용 엑스선 영상 촬영장치용 엑스선 조사범위 표시장치

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WO2011142617A2 true WO2011142617A2 (fr) 2011-11-17
WO2011142617A3 WO2011142617A3 (fr) 2012-02-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015200959A1 (de) 2015-01-21 2016-07-21 Sirona Dental Systems Gmbh Dentales Röntgengerät
CN110574124A (zh) * 2017-04-27 2019-12-13 美敦力导航股份有限公司 过滤器系统和用于对被试成像的方法
US11786192B2 (en) 2017-04-27 2023-10-17 Medtronic Navigation, Inc. Filter system and method for imaging a subject

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KR101392637B1 (ko) * 2012-09-13 2014-05-12 이성엽 씨암장치
CN103901492A (zh) * 2012-12-27 2014-07-02 同方威视技术股份有限公司 人体检查系统
KR101536073B1 (ko) * 2014-04-03 2015-07-13 오스템임플란트 주식회사 X선 촬영장치
KR101536072B1 (ko) * 2014-04-03 2015-07-13 오스템임플란트 주식회사 X선 촬영장치
KR101579007B1 (ko) * 2014-09-24 2015-12-21 오스템임플란트 주식회사 X선 촬영장치
KR101602248B1 (ko) 2014-09-25 2016-03-11 오스템임플란트 주식회사 X선 촬영장치의 콜리메이터
KR101651564B1 (ko) * 2015-10-13 2016-09-06 (주)링크옵틱스 엑스선을 차폐가능한 엑스레이 표적기
KR101621228B1 (ko) * 2015-09-01 2016-05-16 박덕배 엑스레이 장비용 콜리메이터의 촬영 위치 및 영역 표시장치
KR101967535B1 (ko) * 2017-06-30 2019-04-09 신한대학교 산학협력단 Ct 장치 및 이를 이용한 ct 촬영방법
KR102009085B1 (ko) * 2017-10-25 2019-08-08 신한대학교 산학협력단 조사야 조절장치
KR102220523B1 (ko) * 2019-04-22 2021-02-24 신한대학교 산학협력단 조사야 조절장치
KR102545391B1 (ko) 2021-03-04 2023-06-20 한국수력원자력 주식회사 엑스선 조사장치 빔 정렬시스템 및 정렬방법

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JP2004097471A (ja) * 2002-09-09 2004-04-02 Mitsubishi Heavy Ind Ltd 放射線発生装置及び放射線照射方向較正装置
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Cited By (4)

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Publication number Priority date Publication date Assignee Title
DE102015200959A1 (de) 2015-01-21 2016-07-21 Sirona Dental Systems Gmbh Dentales Röntgengerät
WO2016116534A1 (fr) 2015-01-21 2016-07-28 Sirona Dental Systems Gmbh Appareil de radiographie dentaire
CN110574124A (zh) * 2017-04-27 2019-12-13 美敦力导航股份有限公司 过滤器系统和用于对被试成像的方法
US11786192B2 (en) 2017-04-27 2023-10-17 Medtronic Navigation, Inc. Filter system and method for imaging a subject

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WO2011142617A3 (fr) 2012-02-16
KR101137156B1 (ko) 2012-04-19
KR20110125822A (ko) 2011-11-22

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