WO2018012869A1 - Dispositif de mesure de la longueur d'une lésion sténosée. - Google Patents

Dispositif de mesure de la longueur d'une lésion sténosée. Download PDF

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Publication number
WO2018012869A1
WO2018012869A1 PCT/KR2017/007445 KR2017007445W WO2018012869A1 WO 2018012869 A1 WO2018012869 A1 WO 2018012869A1 KR 2017007445 W KR2017007445 W KR 2017007445W WO 2018012869 A1 WO2018012869 A1 WO 2018012869A1
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WO
WIPO (PCT)
Prior art keywords
guide tube
length
stenosis lesion
air
stenosis
Prior art date
Application number
PCT/KR2017/007445
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English (en)
Korean (ko)
Inventor
안지용
김도훈
Original Assignee
재단법인 아산사회복지재단
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Publication date
Application filed by 재단법인 아산사회복지재단 filed Critical 재단법인 아산사회복지재단
Publication of WO2018012869A1 publication Critical patent/WO2018012869A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/015—Control of fluid supply or evacuation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/273—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the upper alimentary canal, e.g. oesophagoscopes, gastroscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/313—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes
    • A61B1/3137—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for introducing through surgical openings, e.g. laparoscopes for examination of the interior of blood vessels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M29/00—Dilators with or without means for introducing media, e.g. remedies
    • A61M29/02—Dilators made of swellable material
    • A61M2029/025—Dilators made of swellable material characterised by the guiding element

Definitions

  • the present invention relates to a stenosis lesion length measuring device and a length measuring method for measuring the length of the stenosis lesion.
  • the body When the body develops tumors or inflammations such as ulcers, it can block or narrow certain body parts, such as the esophagus, stomach, duodenum, small intestine, and large intestine. In order to perform a procedure such as balloon dilation or stent insertion to widen the narrowing area, it is necessary to understand how long the blockage is.
  • stenosis was measured by radiographic imaging after administration of contrast medium, but since the radiographic image is a 2D image, it is difficult to determine the exact length in three dimensions.
  • the length of the stenosis lesion is not accurately measured, the length of the stent needed to widen the stenosis is not known exactly, and the stent may become too long or too short. If the stent is too long, it can lead to waste of stent and complications in the normal lumen. If the stent is too short, it may not be possible to widen the area of stenosis and further stent surgery may be necessary. Therefore, it is very important to measure the exact length of the constriction site.
  • the present invention provides a device for measuring the length of a stenosis lesion to measure an accurate length of a tourism requiring surgery or a procedure without being affected by the curvature of the stenosis lesion caused by the tumor.
  • the stenosis lesion length measurement device is inserted into the stenosis lesion site, the endoscopy or radiographic apparatus to measure the length of the stenosis lesion, so that the medical staff can accurately plan the operation, stenosis lesion length measurement method To provide.
  • An apparatus for measuring the length of a stenosis lesion includes: a guide tube passing through a stenosis lesion portion; An air injection pipe provided in the guide pipe; An expansion part provided at the first end of the guide tube and connected to the air injection tube to expand and receive air; And an air injector provided at a second side end of the guide tube positioned outside the body, and injecting air sucked from the outside through the air injection tube into the expansion unit. Characterized in that the identification mark that can be confirmed the length of the lesion site.
  • An apparatus for measuring the length of a stenosis lesion includes: a guide tube passing through a stenosis lesion site; An air injection pipe provided in the guide pipe; An expansion part provided at the first end of the guide tube and connected to the air injection tube to expand and receive air; And an air injector connection part provided at a second side end of the guide tube positioned outside the body to connect an air injector, wherein the air injector injects air sucked from the outside into the air injection tube.
  • the guide tube is characterized by having an identification mark capable of confirming the length of the stenosis lesion.
  • the guide tube is inserted into the endoscope, the identification mark provided on the guide tube, it may be characterized in that the ruler that can be confirmed through the endoscope displayed on the surface of the guide tube.
  • the ruler starting from a point on the guide tube that is the point where the expansion portion is in contact with the stenosis, it may be characterized in that the identification mark which can confirm the length of the stenosis lesion is displayed on at least one scale. .
  • the identification mark may be a ruler having one or more scales spaced at specific intervals, and the one or more scales may be formed of a contrast material.
  • the apparatus may further include a stent insertion tube disposed in the guide tube and into which the stent is inserted.
  • the stent insertion tube may protrude out of the stent as it passes through the first side end of the guide tube. Can be.
  • it is provided at the end of the second side of the guide tube, and when the rotation in the first direction to block the connection of the air injection pipe and the air injector to enable the inflow of external air, when rotating in the second direction It may further include an air valve for connecting the air injection pipe and the air injector to block the inflow of external air.
  • the step of inserting the guide tube passed through the endoscope to the stenosis lesion site Expanding the expansion part by injecting air through an air injector when the expansion part provided in the guide tube passes through the stenosis lesion; Pulling the guide tube such that the extension part contacts one side of the stenosis lesion and the guide tube is taut; And a scale checking step of grasping a scale corresponding to the other side of the stenosis lesion area through an endoscope inserted through the endoscope.
  • the scale check step it may be characterized in that for measuring the length of the stenosis lesions through the length identification mark displayed with the scale.
  • Method for measuring the length of the stenosis lesion the step of inserting a guide tube into the stenosis lesion site; Expanding the expansion part by injecting air through an air injector when the expansion part provided in the guide tube passes through the stenosis lesion; Pulling the guide tube such that the extension part contacts one side of the stenosis lesion and the guide tube is taut; And confirming a scale corresponding to the other side of the stenosis lesion site through radiographic imaging, wherein the scale is formed of a contrast material;
  • the scale check step it may be characterized by grasping the number of scales from the expansion portion to determine the length of the stenosis lesion.
  • the exact length of the stenosis lesion can be measured. That is, the length of the stenosis lesion in the curved lumen (ie, duodenum, esophagus, large intestine, etc.) in three-dimensional space can be calculated. In addition, it is possible to determine the exact length without being affected by the curvature of the stenosis lesion.
  • Figure 1 is an exemplary view of the length measurement device of the stenosis lesion containing an air injector according to an embodiment of the present invention.
  • Figure 2 is an exemplary view of the stenosis lesion length measuring device having an air injector connection portion that can be connected to the air injector according to an embodiment of the present invention.
  • Figure 3 is an exemplary view of a stenosis lesion length measuring apparatus further comprising an air valve according to an embodiment of the present invention.
  • Figure 4 is an exemplary view for measuring the length of the stenosis lesions in accordance with an embodiment of the present invention.
  • Figure 5 is a flow chart of a method for measuring the length of the stenosis lesions through the endoscope according to an embodiment of the present invention.
  • Figure 6 is a flow chart of a method for measuring the length of the stenosis lesions by radiographic imaging according to an embodiment of the present invention.
  • Figure 1 is an exemplary view of the length measurement device of the stenosis lesion containing an air injector according to an embodiment of the present invention.
  • Figure 2 is an exemplary view of the stenosis lesion length measuring device having an air injector connection portion that can be connected to the air injector according to an embodiment of the present invention.
  • Figure 3 is an exemplary view of a stenosis lesion length measuring apparatus further comprising an air valve according to an embodiment of the present invention.
  • Figure 4 is an exemplary view for measuring the length of the stenosis lesions in accordance with an embodiment of the present invention.
  • Figure 5 is a flow chart of a method for measuring the length of the stenosis lesions through the endoscope according to an embodiment of the present invention.
  • Figure 6 is a flow chart of a method for measuring the length of the stenosis lesions by radiographic imaging according to an embodiment of the present invention.
  • the stenosis lesion site length measuring apparatus 10 the guide tube 100; Air injection pipe 200; Extension 300; And an air injector 400.
  • the guide tube 100 Air injection pipe 200; Extension 300; And an air injector 400.
  • Guide tube 100 corresponds to a tube passing through the stenosis lesion (2).
  • Guide tube 100 may be formed of a material that can be bent along the bending of the lumen (1), may include one or more tubes, such as the air injection pipe 200 to be described later.
  • Guide tube 100 may be inserted into the stenosis lesion in various ways.
  • the guide tube 100 may be inserted into the endoscope tube 20, and may be inserted into the stenosis lesion area formed in the lumen 1 through the endoscope tube 20.
  • the endoscope tube 20 having the forceps of the endoscope, that is, the working channel may be used.
  • the guide tube 100 may be directly inserted into the body through the oral cavity or anus.
  • the guide tube when the guide tube is provided with a stent insertion tube as described below, if the thickness of the stent is thick, it may not be inserted into the forceps of the endoscope.
  • the guide tube 100 may be inserted directly into the body without passing through the forceps of the endoscope, and as described below, the stenosis is performed by performing radiographic imaging with an identification mark on a guide tube made of a contrast material or a fluorescent material. The length can be measured.
  • Guide tube 100 may be provided with an identification mark.
  • the identification mark may be formed on the surface of the guide tube 100 is formed of a ruler 110 that can determine the length of the stenosis lesion. That is, the guide tube 100 can check the ruler for measuring the length of the stenosis lesion (2) using an endoscope or a radiographic apparatus.
  • the medical staff measures the length of the stenosis lesion by checking the scale adjacent to the stenosis lesion area through the endoscope. can do.
  • the ruler 110 starts from a point on the guide tube that is the point where the extension contacts the stenosis lesion. That is, when measuring the length of the stenosis lesion by the medical staff, when the expansion unit 300 is expanded by the air injector 400 to be described later and the length measuring device 10 is pulled from the outside the inner portion of the expansion unit 300 It will no longer move in contact with one side of the stenosis lesion.
  • the starting point of the stenosis lesion site may coincide with the inner surface of the dilator so that the point on the guide tube, which is the point where the dilator contacts the stenosis lesion, may be the starting scale of the ruler.
  • the ruler 110 may be displayed with an identification mark that can determine the length of the stenosis lesion on one or more scales. Since the scale disposed in the stenosis lesion site (2) can not be confirmed through the endoscope, in order to determine the length from the start point of the ruler 110, it should be able to check the length by each scale itself. Therefore, the scale of the ruler can be provided with the identification mark which shows the length from a starting point.
  • the identification mark may be a numerical value displayed around the scale.
  • the identification mark may be a grid color for each length. That is, the medical staff can determine the length of the stenosis lesion by checking the color of the graduation located at the distal end of the stenosis lesion through the endoscope.
  • the ruler 110 may include a basic unit scale and a detailed unit scale.
  • Detailed division unit means the length unit which the basic division unit is divided in detail.
  • the basic unit scale displayed on the guide tube 100 may include an identification mark, and the detailed unit scale may have only a scale mark.
  • the identification mark confirms the length of the base unit close to the end of the stenosis lesion site and the base unit to the end of the stenosis lesion site. By identifying subunit differences, the exact length of the stenosis lesion can be measured.
  • one or more scales of the ruler 110 may be formed of a contrast material.
  • the medical staff may calculate the lesion length as the patient is photographed by the radiographic imaging apparatus after inserting the stenosis lesion length measuring device.
  • the medical staff can measure the length of the stenosis lesion by checking the number of graduations found on the radiographic images from one end to the opposite end of the stenosis lesion.
  • the air injection pipe 200 is provided in the guide pipe, and corresponds to a passage for delivering air to the expansion unit 300. That is, one end of the air injection pipe 200 may be connected to the air injector 400, and the other end of the air injection pipe 200 may be connected to the expansion unit 300.
  • the expansion unit 300 is provided at the end of the first side of the guide tube, and is connected to the air injection tube to be expanded by receiving air.
  • the expansion unit 300 may be a balloon that is expanded to a specific size and a specific shape as air is injected.
  • the expansion part 300 serves to prevent the guide tube from entering into the stenosis any more in the stenosis lesion side as it expands.
  • the air injector 400 is provided at the second side end of the guide tube located outside the body, and injects air sucked from the outside through the air injection tube into the expansion part 300.
  • the air injector 400 may be formed in a syringe shape, but is not limited thereto and may be formed in various shapes or structures capable of injecting air.
  • the air valve 600 may further include.
  • an air valve 600 for adjusting the flow path of the air have.
  • the air valve 600 is provided at the second end of the guide tube, and blocks the connection between the air injection pipe 200 and the air injector 400 when it rotates in the first direction and allows the inflow of external air. And, when rotating in the second direction may connect the air injection pipe 200 and the air injector 400 and block the inflow of external air.
  • the air valve 600 may be formed in various structures that can change the movement path of the air.
  • the stent insertion tube 700 may further include.
  • the stent insertion tube 700 is disposed in the guide tube and may be formed to protrude toward the lumen of the stent inserted from the outside as it passes through the first side end of the guide tube. Through this, the medical staff can directly perform the stenosis lesion procedure using the stent.
  • the stenosis lesion site measuring apparatus 10 according to an embodiment of the present invention, the guide tube 100; Air injection pipe 200; Extension 300; And an air injector connection part 500.
  • the guide tube 100 Air injection pipe 200; Extension 300; And an air injector connection part 500.
  • Guide tube 100 is inserted into the endoscope, and serves to pass through the stenosis lesion.
  • the guide tube 100 may display a ruler that can be confirmed through the endoscope on the surface.
  • the ruler 110 starting from the point on the guide tube 100, which is the point where the extension is in contact with the stenosis lesion, may be displayed with an identification mark that can confirm the length of the stenosis lesion on one or more scales.
  • the one or more scales of the ruler may be formed of a contrast material.
  • Air injection pipe 200 is provided in the guide pipe serves to provide air to the expansion unit 300.
  • the expansion part 300 is provided at the end of the first side of the guide tube, and is connected to the air injection tube to expand the air.
  • the expansion part 300 serves to prevent the guide tube from entering into the stenosis any more in the stenosis lesion side as it expands.
  • the air injector connection part 500 is provided at the second side end of the guide tube 100 located outside the body and serves to connect the air injector.
  • the air injector injects air sucked from the outside into the air inlet tube, and a syringe of various shapes or sizes used in a hospital may be used.
  • the stent insertion tube 700 is disposed in the guide tube, the stent is inserted, the stent insertion tube 700 is passed through the first side end of the guide tube 100 as the stent It may be characterized by protruding to the outside.
  • the air valve 600 to connect the air injection pipe 200 and the air injector 400 when the rotation in the second direction and to block the inflow of external air may further include a.
  • the method for measuring the length of the stenosis lesion according to another embodiment of the present invention, the step of inserting the guide tube passed through the endoscope to the stenosis lesion site (S100); When the expansion unit provided in the guide tube passes through the stenosis lesion site, inflating the expansion unit by injecting air through an air injector (S200); Pulling the guide tube such that the extension part contacts one side of the stenosis lesion and the guide tube is taut (S300); And a scale check step (S400) of grasping a scale corresponding to the other side of the stenosis lesion area through an endoscope inserted through the endoscope.
  • S100 the step of inserting the guide tube passed through the endoscope to the stenosis lesion site
  • the guide tube 100 passed through the endoscope tube 20 is inserted into the stenosis lesion (S100).
  • the guide tube 100 inserted through the endoscope tube 20 is further inserted to pass through the stenosis lesion site after the endoscope tube 20 moves up to the stenosis lesion site.
  • the expansion portion provided in the guide tube passes through the stenosis lesion site, the expansion is expanded by injecting air through an air injector (S200).
  • extension portion 400 is in contact with one side of the stenosis lesion site 2 and pulls the guide tube 100 from the outside (S300) so that the guide tube 100 is taut.
  • the endoscope inserted through the endoscope 20 to check the scale corresponding to the other side of the stenosis lesion (S400; graduation check step).
  • Check the ruler 110 provided in the guide tube 100 can determine the length.
  • the medical staff can measure the length of the stenosis lesion area through the identification mark provided with the scale.
  • a method for measuring the length of a stenosis lesion includes inserting a guide tube into the stenosis lesion (S100); Expanding the expansion part by injecting air through an air injector when the expansion part provided in the guide tube passes through the stenosis lesion part; Pulling the guide tube such that the extension part contacts one side of the stenosis lesion and the guide tube is taut (S300); And checking the scale corresponding to the other side of the stenosis lesion site through radiographic imaging, wherein the scale is formed of contrast medium, the scale checking step (S500).
  • the radiography checks the scale corresponding to the other side of the stenosis lesion (S500; scale check step).
  • the scale may be formed of a contrast material.
  • the scale check step (S500) it is possible to determine the length of the stenosis lesion by grasping the scale number from the expansion portion.
  • the exact length of the stenosis lesion can be measured. That is, the length of the stenosis lesion in the curved lumen (ie, duodenum, esophagus, large intestine, etc.) in three-dimensional space can be calculated. In addition, it is possible to determine the exact length without being affected by the curvature of the stenosis lesion.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

La présente invention porte sur un dispositif de mesure d'une lésion sténosée qui comprend un tube de guidage passant à travers la lésion sténosée; un tube d'injection d'air dans le tube de guidage; une partie d'expansion à l'extrémité latérale du tube de guidage et reliée au tube d'injection d'air pour recevoir de l'air et être déployé; et un injecteur d'air à l'extrémité latérale du tube de guidage, à l'extérieur du corps humain, pour injecter de l'air à travers le tube d'injection d'air dans la partie d'expansion. Le tube de guidage a un indicateur d'identification mesure la longueur de la lésion sténosée dans un organe tubulaire courbé tel que le duodénum, l'œsophage ou le gros intestin.
PCT/KR2017/007445 2016-07-14 2017-07-12 Dispositif de mesure de la longueur d'une lésion sténosée. WO2018012869A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2016-0089297 2016-07-14
KR1020160089297A KR101850690B1 (ko) 2016-07-14 2016-07-14 협착병변부위 길이측정장치 및 길이측정방법

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WO2018012869A1 true WO2018012869A1 (fr) 2018-01-18

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10195693B2 (en) 2014-06-20 2019-02-05 Vel03D, Inc. Apparatuses, systems and methods for three-dimensional printing
CN111568426A (zh) * 2020-05-25 2020-08-25 易荔 气道狭窄段直径和长度测量装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020138946A1 (fr) * 2018-12-26 2020-07-02 계명대학교 산학협력단 Dispositif d'élimination de calcul
KR102537138B1 (ko) * 2021-04-19 2023-05-26 경북대학교 산학협력단 정위 수술을 위한 마취제 주입용 주사기
KR102537121B1 (ko) * 2021-04-19 2023-05-26 경북대학교 산학협력단 길이측정기를 구비하는 주사기

Citations (5)

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KR20030044486A (ko) * 2001-11-30 2003-06-09 주식회사 에스앤지바이오텍 스텐트 삽입장치
JP2007020885A (ja) * 2005-07-15 2007-02-01 Asahi Intecc Co Ltd 医療用処置具
KR101051323B1 (ko) * 2010-03-29 2011-07-22 한양대학교 산학협력단 용종 절제 의료기기
KR20150138653A (ko) * 2014-06-02 2015-12-10 주식회사 엠아이텍 보형물 삽입기구
KR20160082755A (ko) * 2014-12-29 2016-07-11 (의료)길의료재단 풍선이 장착된 스텐트 삽입장치 및 이의 사용방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030044486A (ko) * 2001-11-30 2003-06-09 주식회사 에스앤지바이오텍 스텐트 삽입장치
JP2007020885A (ja) * 2005-07-15 2007-02-01 Asahi Intecc Co Ltd 医療用処置具
KR101051323B1 (ko) * 2010-03-29 2011-07-22 한양대학교 산학협력단 용종 절제 의료기기
KR20150138653A (ko) * 2014-06-02 2015-12-10 주식회사 엠아이텍 보형물 삽입기구
KR20160082755A (ko) * 2014-12-29 2016-07-11 (의료)길의료재단 풍선이 장착된 스텐트 삽입장치 및 이의 사용방법

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10195693B2 (en) 2014-06-20 2019-02-05 Vel03D, Inc. Apparatuses, systems and methods for three-dimensional printing
CN111568426A (zh) * 2020-05-25 2020-08-25 易荔 气道狭窄段直径和长度测量装置
CN111568426B (zh) * 2020-05-25 2023-03-24 易荔 气道狭窄段直径和长度测量装置

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KR20180007858A (ko) 2018-01-24

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