WO2017039202A1 - Dispositif permettant d'ouvrir et de fermer une plaque de plomb de collimateur destiné à un équipement à rayons x - Google Patents

Dispositif permettant d'ouvrir et de fermer une plaque de plomb de collimateur destiné à un équipement à rayons x Download PDF

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Publication number
WO2017039202A1
WO2017039202A1 PCT/KR2016/009206 KR2016009206W WO2017039202A1 WO 2017039202 A1 WO2017039202 A1 WO 2017039202A1 KR 2016009206 W KR2016009206 W KR 2016009206W WO 2017039202 A1 WO2017039202 A1 WO 2017039202A1
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WO
WIPO (PCT)
Prior art keywords
width adjustment
collimator
belt
frame
ray
Prior art date
Application number
PCT/KR2016/009206
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English (en)
Korean (ko)
Inventor
박덕배
Original Assignee
박덕배
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 박덕배 filed Critical 박덕배
Publication of WO2017039202A1 publication Critical patent/WO2017039202A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/06—Diaphragms
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/10—Safety means specially adapted therefor
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
    • G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators

Definitions

  • the present invention relates to a collimator for X-ray equipment, and more particularly, X-rays to precisely adjust (adjust and set) the X-ray irradiation range through structural improvement of the lead plate switchgear and to prevent radiation exposure of unnecessary parts. It relates to a lead plate switchgear of equipment collimator.
  • the diagnostic X-ray (X-ray) equipment is steadily increasing its utilization for the purpose of early and final diagnosis of the disease.
  • the electrical characteristics are excellent and convenient to use, and the output performance is maintained at the initially set level so that there is no pain and discomfort of the patient, as well as the human body with a minimum radiation dose. It is necessary to render my information in a high quality image to provide the maximum medical information.
  • the performance of such diagnostic X-ray equipment is determined by the X-ray output, that is, the tube voltage, tube current, and irradiation time of the X-ray tube. This should be reproducible.
  • the collimator is installed at the center of the X-ray irradiation side of the X-ray equipment to adjust the radiation field of the X-ray irradiation from the X-ray equipment when X-ray imaging a specific part of the human body, that is, the affected area
  • a device for displaying the X-ray photographing position on the human body while limiting the spread of the X-ray As shown in FIG. 1, a plurality of lead plates necessary for freely adjusting the size and shape of the X-ray flux are provided. It is configured inside.
  • the lamp is mounted inside the collimator and a reflector is installed at an inclination of 45 ° to illuminate the light so that the size and shape of the irradiation field can be checked with our eyes, and the transparent cross with black crosshairs can be placed to observe the center point of the irradiation field. It was made.
  • the collimator since the collimator has to be controlled directly by the operator to control the opening and closing of the lead plate, the opening and closing precision and accuracy of the lead plate is inevitably deteriorated, and it becomes a factor of increasing the device volume due to the interlocking of multiple gears. It has caused problems that are very complicated.
  • An object of the present invention is to solve the above problems, and provided with a drive unit for opening and closing the lead plate required for the adjustment of the X-ray irradiation range, the position of the lead plate through the combination of the step motor, the timing gear and the timing belt To provide a lead plate opening and closing device of the collimator for the X-ray equipment to make the movement more precise.
  • Another object of the present invention is to provide a means for precisely measuring the position movement of the lead plate, the position of the lead plate to open and close the horizontal and vertical operation to adjust the X-ray irradiation range more precise and precise To provide a lead plate switchgear of the collimator for the X-ray equipment to enable.
  • a frame having a rectangular frame shape provided in the housing;
  • a first shielding body mounted on the frame to achieve a horizontal opening / closing action for adjusting an X-ray horizontal width irradiation range; While further mounted to the frame, the second shield to achieve a vertical opening and closing action for adjusting the longitudinal width of the X-rays;
  • a driving unit to operate the first and second shields in a state in which the frame and the first and second shields are connected and mounted; And sensing means for measuring an operating state of the first and second shields while being further connected and mounted to the frame and the first and second shields.
  • the frame receives a signal from the sensing means measuring the operating state of the first and second shields, and provides a control signal to the driving unit in a predetermined order to control the operation of the first and second shields.
  • a microprocessor is further provided.
  • the frame is composed of a pair of cross bars and a pair of longitudinally parallel to each other longitudinally and horizontally with a gap between the internal space area of the collimator and the length of the lead plate, the first shielding body, the crosspiece In a state in which the drive unit is connected to the left and right directions by the driving unit, the pair of lead plates to adjust the lateral width of the X-rays, the second shielding body, in the state connected to the vertical pole, It is another pair of lead plates to adjust the longitudinal width of the X-rays by the corresponding driving movement in both the upper and lower directions by the drive unit.
  • the drive unit rotates at a precise speed
  • the step motors are configured to transmit the generated rotational power to the first and second shields, respectively, and the drive is driven by linkage by receiving power from the step motor while being hinged to the frame.
  • Shaft and interlock shaft the drive belt is rotated in a state of being belted to the step motor and the drive shaft, the power belt of the step motor to transfer the power of the step motor to the drive shaft, the state belted to the drive shaft and the interlock shaft Rotating in the furnace is composed of a timing belt for opening and closing the first and second shields.
  • the sensing means includes a moving block moving together while being attached to the lead plate, and an encoder having an optical sensor attached to the frame and attached with an optical sensor for detecting a position movement of the moving block.
  • a horizontal width adjustment belt including a front section portion moving to the left and right according to the rotation direction and the rear section portion moving in the opposite direction to the front section portion;
  • a longitudinal width adjusting belt including a front section portion moving up and down in a rotational direction and a rear section portion moving in a direction opposite to the front section portion;
  • a pair of lead plates for adjusting the width of the X-ray irradiation range, wherein one of the pair of lead plates is connected to move together with the front section of the width adjusting belt, and the other of the pair of lead plates.
  • the first shielding body is connected to move together with the rear section of the width adjusting belt;
  • a pair of lead plates for longitudinal width adjustment for an X-ray irradiation range, wherein one of the pair of lead plates is connected to move together with the front section of the longitudinal width adjustment belt, the other of the pair of lead plates Includes a second shield connected to move with the rear section of the longitudinal width adjustment belt.
  • the horizontal width adjustment drive means for driving the horizontal width adjustment belt and the vertical width adjustment drive means for driving the longitudinal width adjustment belt further comprises, the horizontal width adjustment drive means, a horizontal width adjustment motor, and one side of the horizontal width adjustment belt A first gear for width adjustment, a second gear for width adjustment provided on the other side of the width adjustment belt, a width adjustment interlocking gear connected to rotate together with the width adjustment first gear, and the width adjustment interlocking gear and the width adjustment for rotation.
  • a horizontal width adjustment drive belt for transmitting rotational force between the motors wherein the vertical width adjustment driving means includes a longitudinal width adjustment motor, a first width adjustment gear provided on one side of the longitudinal width adjustment belt, and the other side of the longitudinal width adjustment belt.
  • the second gear for longitudinal width adjustment and the first gear for longitudinal width adjustment It may include a longitudinal width adjustment linkage gear connected to rotate, and a longitudinal width adjustment drive belt for transmitting a rotational force between the longitudinal width adjustment linkage gear and the longitudinal width adjustment motor.
  • the horizontal width adjustment motor and the vertical width adjustment motor may include a step motor, and the horizontal width adjustment belt and the vertical width adjustment belt may include a timing belt.
  • Another embodiment of the present invention including the lead plate opening and closing device of the collimator, or includes the collimator for the X-ray equipment, may be X-ray equipment for taking an X-ray picture for the patient.
  • the lead plate opening and closing device of the collimator for x-ray equipment of the present invention is more precisely controlled by the timing belt, so that the adjustment of the X-ray irradiation range is of course more unnecessary. Preventing radiation to the site has the effect of greatly reducing the dose of the patient.
  • the position movement measurement of the lead plate using the sensing means by preventing the error of the X-ray irradiation range due to the operating unit operation error, it has the effect that the adjustment and setting of the X-ray irradiation range can be more precise.
  • the performance of the X-ray equipment can be kept constant, thereby greatly improving the level of radiographic diagnosis by reducing radiation exposure, controlling image quality, and reducing rephotography, thereby providing accurate medical images to patients. It is a very useful invention that can greatly contribute to preparing the conditions for providing high quality medical services that can provide information.
  • 1 is an exemplary view showing the internal structure of a general collimator.
  • Figure 2a and Figure 2b is a perspective view and a right side view showing the overall structure of the lead plate opening and closing device of the collimator for x-ray equipment according to the present invention.
  • Figure 3 is an exploded perspective view showing the configuration of the lead plate opening and closing device of the collimator for x-ray equipment according to the present invention.
  • FIG. 4 is a plan view showing main components of the collimator for X-ray equipment according to the present invention, which shows a configuration relationship between the lead plates of the first and second shields and the timing belt of the driving unit.
  • 5a and 5b is an operating state diagram showing an embodiment of a lead plate opening and closing device of the collimator for x-ray equipment according to the present invention.
  • FIGS. 2A and 2B of the accompanying drawings are a perspective view and a right side view showing the overall structure of the lead plate opening and closing device of the collimator for x-ray equipment according to the present invention
  • Figure 3 is a configuration of the lead plate opening and closing device of the collimator for x-ray equipment according to the present invention
  • Figure 4 is an exploded perspective view showing
  • Figure 4 is a main plan view showing the configuration relationship between the lead plate of the first and second shields and the timing belt of the drive in the collimator for x-ray equipment according to the present invention
  • Figures 5a and 5b Operation state diagram showing an embodiment of the lead plate switchgear of the collimator for x-ray equipment.
  • the lead plate opening and closing device (A) of the collimator for x-ray equipment As shown in Figure 2a and 2b, the lead plate opening and closing device (A) of the collimator for x-ray equipment according to the present invention, the frame 1 of the rectangular frame type provided in the housing of the collimator 900 for x-ray equipment,
  • the first shielding body 2 which has a horizontal opening and closing action for adjusting the horizontal width irradiation range of the X-rays while being mounted on the frame 1, and the longitudinal width irradiation range of the X-rays while being further mounted on the frame 1
  • the second and second shielding body (3) which has a vertical opening and closing action for adjustment, and the first and second shielding body (2) in a state of being connected to the frame (1) and the first and second shielding bodies (2) and (3).
  • a signal is received (transmitted) from the sensing means 5 measuring the operating state of the first and second shields 2 and 3 and not only systematically executed in a predetermined order but also the driving unit ( It is preferable that a microprocessor unit (not shown) is provided to control the operation of the first and second shields 2 and 3 by providing (transmitting) control signals.
  • the frame 1 is a base structure for linkage mounting between the first and second shields 2, 3, the driver 4, and the sensing means 5, as shown in FIG. 3.
  • the bar is composed of a pair of rungs 11 and a pair of rungs 12 parallel to each other longitudinally and laterally at intervals in consideration of the internal space area of the collimator 900 and the length of the lead plate.
  • the pair of crossbars 11 is configured to achieve a horizontal opening and closing operation in a state in which the first shield 2 is mounted, and the pair of cross bars 12 are mounted in a state in which the second shield 3 is mounted. This is to achieve vertical opening and closing action.
  • the first shielding body 2 is a pair of lead plates 21 for adjusting the width of X-rays radiated from the X-ray apparatus.
  • the cross bars 11 of the frame 1 are provided.
  • the cross-section of the X-ray is adjusted according to the mutual movement in the left and right directions by the driving unit 4 in a state in which the drive unit 4 is installed, for this purpose, as shown in FIG. Is attached to one portion (c-1) of the front section of the timing belt of the drive unit 4 to be described later, and the other lead plate is attached to one portion (c-2) of the rear section of the timing belt. This allows horizontal movement in opposite directions.
  • the second shield 3 is a pair of lead plates 31 for adjusting the longitudinal width of the X-rays radiated from the X-ray equipment. As shown in FIG. 3, the second shield 3 is mounted on the vertical pole 12 of the frame 1.
  • the longitudinal width of the X-rays is controlled by the driving unit 4 in the interlocked state in the up and down directions, so as to achieve this, as in the first shielding body 2, any one lead plate Is attached to a portion of the front section of the timing belt of the drive unit 4, and the other lead plate is attached to a portion of the rear section of the timing belt, so that each lead plate 21 is vertically moved in a direction opposite to each other. It becomes possible.
  • bearing members b are integrally assembled to each rear surface of the lead plates 21 and 31, and the frame 1 guides movement of the bearing block b.
  • a guide shaft (s) for the it is preferable to make the movement of each lead plate 21, 31 more smoothly.
  • the driving unit 4 serves as a power unit for opening and closing the first and second shields 2 and 3, and as shown in FIGS. 2A and 2B, precisely in response to an input signal of the microprocessor.
  • a step motor 41 which rotates at a speed and transmits its rotational power to the first and second shields 2 and 3, respectively, a crosspiece 11 and a longitudinal rod 12 of the frame 1;
  • the drive shaft 42 and the interlock shaft 43 which are interlocked with each other by receiving power from the step motor 41 in a hinged state, and the power of the step motor 41 to the drive shaft 42.
  • the lead plate 21 attached to one side of the front and rear plural parts by orbital rotation while being transmitted to the driving belt 44 and the driving shaft 42 and the interlocking shaft 43 in a belting state. It consists of a timing belt 45 to enable horizontal and vertical reciprocating movement of the 31.
  • a drive gear 411-1 is coupled to the drive shaft 411 of the step motor 41 to allow the drive belt 44 to achieve precise rotation at a constant RPM (rotation speed).
  • the drive shaft 42, the interlocking gear 421 to achieve a cooperative rotation by the drive belt 44, and the timing belt 45 is fixed when rotated by the power transmitted from the server motor 41
  • a first timing gear 422 is coupled to one end of the same side in order to achieve precise rotation at RPM.
  • the interlocking shaft 43 is provided with a second timing gear 431 which is connected to each other by the timing belt 45 and assists the rotation of the timing belt 45.
  • the sensing means 5 is a sensing device for measuring the operating state of the first and second shields 2 and 3 that are opened and closed by the driving unit 4, and are illustrated in FIGS. 2A and 5A and 5B.
  • a moving block 51 moving together in a state of being attached to the lead plates 21 and 31 and a position movement of the moving block 51 in a state of being attached to the frame 1 are detected. It consists of an encoder 52 including an optical sensor (not shown) for.
  • the first shielding body 2 is provided on the crossbar 11 of the frame 1, and the second shielding body 3 is individually opened and closed on the crossbar 12. It is installed in such a way that it can be achieved.
  • the driving unit 4 may operate the first and second shields 2 and 3 through a control signal provided from the microprocessor, and the frame 1 and the first and second shields. (2) (3).
  • any one of the plurality of lead plates 21 of the first shielding body 2 is attached to a portion of the front section of the timing belt 45 of the driving unit 4, and the other one of the timing belt ( By being attached to a portion of the rear section of the 45, when the timing belt 45 makes the orbital rotation by the step motor 31, the plurality of lead plates 21 reciprocate in a direction opposite to each other. It is to be able to open and close the horizontal action of the first shield (2).
  • any one of the plurality of lead plates 31 of the second shielding body 3 is attached to a portion of the front section of the timing belt 45 of the driving unit 4, and the other one of the plurality of lead plates 31 of the second shielding body 3 is a rear section of the timing belt 45.
  • the timing belt 45 makes orbital rotation by the step motor 31, the plurality of lead plates 31 are reciprocated in directions opposite to each other.
  • the secondary shield 3 is also to enable the vertical opening and closing action.
  • the sensing means 5, the lead plate 21, 31 when the lead plates 21, 31 of the first, second shielding body (2) (3) performs the opening and closing action in the horizontal and vertical manner respectively.
  • the moving block 51 is attached to the lead plates 21 and 31 of the first and second shields 2 and 3 so that the lead plates 21 and 31 are Simultaneous movement is possible when moving, and the encoder 52 is attached to the crossbar 11 and the crossbar 12 of the frame 1 to move along the lead plates 21 and 31. It is possible to measure the movement of the position.
  • the drive device 4 operating in the order established in advance by the microprocessor operates the first shielding body 2 and the second shielding body 3, and thus the opening and closing operation of the lead plates 21 and 31 is performed.
  • the microprocessor which is measured by the sensing means 5 and receives the measured signal, again controls the driving device 4, so that the first and second shielding bodies described above are operated in the same manner as in FIGS. 5A and 5B. 2) (3) can be opened and closed to control and set a predetermined X-ray irradiation range, and to more precisely control the irradiation range and to prevent radiation exposure to unnecessary parts accordingly.
  • the step motor 41 and the speed can be precisely controlled. X-ray irradiation by the first and second timing gears 422 and 431 rotating by receiving power from the step motor 41 and the timing belt 45 which is orbitally rotated with precise RPM in connection with them In addition to the precise adjustment of the range, it is possible to reduce the exposure dose of the patient by preventing the radiation exposure of unnecessary areas as much as possible.
  • the present invention relates to a collimator for x-ray equipment.

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  • Health & Medical Sciences (AREA)
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  • Engineering & Computer Science (AREA)
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  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
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  • Optics & Photonics (AREA)
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  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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  • General Engineering & Computer Science (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

La présente invention concerne un collimateur pour équipement à rayons X et, plus spécifiquement, un dispositif d'ouverture et de fermeture d'une plaque de plomb d'un collimateur pour équipement à rayons X, le dispositif étant apte à régler avec précision (ajustement et réglage) un champ de rayonnement de rayons X et à empêcher une exposition à un rayonnement d'une partie inutile en améliorant la structure du dispositif d'ouverture et de fermeture de plaque de plomb.
PCT/KR2016/009206 2015-09-01 2016-08-19 Dispositif permettant d'ouvrir et de fermer une plaque de plomb de collimateur destiné à un équipement à rayons x WO2017039202A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150123428A KR101621226B1 (ko) 2015-09-01 2015-09-01 엑스레이 장비용 콜리메이터의 납판 개폐장치
KR10-2015-0123428 2015-09-01

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WO2017039202A1 true WO2017039202A1 (fr) 2017-03-09

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PCT/KR2016/009206 WO2017039202A1 (fr) 2015-09-01 2016-08-19 Dispositif permettant d'ouvrir et de fermer une plaque de plomb de collimateur destiné à un équipement à rayons x

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108020569A (zh) * 2018-01-18 2018-05-11 中国工程物理研究院应用电子学研究所 一种准直装置及包含该装置的ct机
CN115327604A (zh) * 2022-08-26 2022-11-11 郑州康佰甲科技有限公司 一种x射线源测试装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1020098A (ja) * 1996-03-29 1998-01-23 Siemens Medical Syst Inc コリメータの校正方法および装置
KR20100006037U (ko) * 2008-12-05 2010-06-15 (주)바텍이우홀딩스 치과용 엑스선 촬영장치의 콜리메이터
KR101185743B1 (ko) * 2012-03-16 2012-09-26 한국지질자원연구원 형광엑스선분석용 차폐장치
KR101239944B1 (ko) * 2012-09-05 2013-03-06 유영검사 주식회사 방사선원의 조사 방향을 정밀하게 조절할 수 있는 비파괴 검사 장비용 콜리메이터 장치
KR20140061631A (ko) * 2012-11-14 2014-05-22 황영신 조사범위 조절수단을 구비하는 콜리메이터장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1020098A (ja) * 1996-03-29 1998-01-23 Siemens Medical Syst Inc コリメータの校正方法および装置
KR20100006037U (ko) * 2008-12-05 2010-06-15 (주)바텍이우홀딩스 치과용 엑스선 촬영장치의 콜리메이터
KR101185743B1 (ko) * 2012-03-16 2012-09-26 한국지질자원연구원 형광엑스선분석용 차폐장치
KR101239944B1 (ko) * 2012-09-05 2013-03-06 유영검사 주식회사 방사선원의 조사 방향을 정밀하게 조절할 수 있는 비파괴 검사 장비용 콜리메이터 장치
KR20140061631A (ko) * 2012-11-14 2014-05-22 황영신 조사범위 조절수단을 구비하는 콜리메이터장치

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108020569A (zh) * 2018-01-18 2018-05-11 中国工程物理研究院应用电子学研究所 一种准直装置及包含该装置的ct机
CN108020569B (zh) * 2018-01-18 2023-11-21 中国工程物理研究院应用电子学研究所 一种准直装置及包含该装置的ct机
CN115327604A (zh) * 2022-08-26 2022-11-11 郑州康佰甲科技有限公司 一种x射线源测试装置

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