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WO2011125518A1 - Appareil médical - Google Patents

Appareil médical Download PDF

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Publication number
WO2011125518A1
WO2011125518A1 PCT/JP2011/057190 JP2011057190W WO2011125518A1 WO 2011125518 A1 WO2011125518 A1 WO 2011125518A1 JP 2011057190 W JP2011057190 W JP 2011057190W WO 2011125518 A1 WO2011125518 A1 WO 2011125518A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
light
medical device
display unit
light source
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2011/057190
Other languages
English (en)
Japanese (ja)
Inventor
茂 根本
尚 齊藤
茂 村松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nemoto Kyorindo Co Ltd
Original Assignee
Nemoto Kyorindo Co Ltd
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 Nemoto Kyorindo Co Ltd filed Critical Nemoto Kyorindo Co Ltd
Priority to JP2012509427A priority Critical patent/JP5964231B2/ja
Publication of WO2011125518A1 publication Critical patent/WO2011125518A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14546—Front-loading type injectors
    • 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/60—General characteristics of the apparatus with identification means
    • A61M2205/6063—Optical identification systems

Definitions

  • the present invention relates to a medical device for injecting a medical solution into a subject, and more particularly, to a medical device in which a chemical solution such as a contrast agent or physiological saline does not enter the casing and the device can be easily cleaned. .
  • CT Computer Tomography
  • MRI Magnetic Resonance Imaging
  • PET PET
  • Emission Tomography Emission Tomography
  • a subject may be injected with a contrast medium, physiological saline, or the like (hereinafter, also simply referred to as “medical solution”).
  • Patent Document 1 discloses a liquid crystal display unit (display) provided in an injection head and predetermined information (warning or the like) displayed on the liquid crystal display unit.
  • an opening is formed in a part of the housing, a display unit is disposed inside the opening, and the opening is provided.
  • a structure in which a transparent window member is fitted so as to cover is often employed.
  • the chemical solution when the chemical solution leaks onto the injection head, the chemical solution may enter from the gap between the window member and the housing. Even if it does not enter, it takes time and effort to wipe off the chemical solution adhering to the joint portion (uneven portion) between the window member and the housing. In particular, since the contrast agent adheres to a paste when dried, it is difficult to wipe it off as compared with physiological saline or the like.
  • the present invention has been made in view of the above problems, and an object thereof is to provide a medical device in which a chemical solution such as a contrast agent or physiological saline does not enter the casing and the device can be easily cleaned. There is to do.
  • the medical device of the present invention for solving the above problems is A housing, A syringe holding part that is provided in a part of the housing and holds the syringe; A piston drive mechanism for moving the piston member of the syringe held by the syringe holding unit; A display unit for displaying predetermined information provided in another part of the housing; A medical device comprising: The display unit A light source disposed inside the housing; A character display unit disposed between an inner surface of the housing and the light source, and a predetermined character is represented on the surface thereof, In the state where the light source is turned on, the light from the light source can be visually recognized from the outside of the casing by transmitting the casing. In a state where the light source is not turned on, the characters cannot be visually recognized from the outside of the casing.
  • the present invention may also be as follows.
  • the light source is a plurality of LEDs arranged on a substrate
  • the character display unit is A plurality of light guide pieces for guiding light from each LED to the housing side; A light shielding member that shields a gap between the plurality of light guide pieces; Have medical equipment.
  • the LED is disposed at a position corresponding to a 7-segment display, A medical device in which one light guide piece is arranged on each LED.
  • a medical device in which a curved character display surface is configured by providing a difference in height between the plurality of light guide pieces.
  • a medical device in which the light shielding member is curved in accordance with the curved character display surface.
  • a medical device in which a coating for preventing light from the light source from being transmitted is provided around an area facing the character display unit in the inner surface of the housing.
  • a medical device in which the display unit is provided on an upper surface of the housing.
  • the display unit is provided on the top surface of the housing in this manner, there is a high possibility that the chemical solution in the syringe adheres to the display unit, and problems such as infiltration of the chemical solution are likely to occur. Therefore, the present invention can be applied. It is particularly useful.
  • a medical device in which the drug solution in the syringe is a contrast medium.
  • the present invention it is possible to provide a medical device in which there is no possibility that a medical solution such as a contrast medium or physiological saline enters the housing, and the apparatus can be easily cleaned.
  • FIG. 1 It is a figure which shows the injection head of one form of this invention, (a) is a top view, (b) is the figure which looked at the head from back. It is a disassembled perspective view which shows the structure of the display part of the injection
  • FIG. 1 shows an example of the injection head of the present invention.
  • the injection head 100 is an angio two-tube head to which two syringes 200A and 200B (hereinafter also simply referred to as a syringe 200) can be attached.
  • the injection head 100 includes a casing 111 (made of resin as an example) that is formed slightly longer in the front-rear direction.
  • a syringe holding unit 121 that holds each syringe 200 is provided on the front side of the upper surface of the housing 111.
  • the syringe holding unit 121 holds the syringe 200 in a state where a substantially cylindrical protective case 205 for preventing the syringe from being damaged is attached.
  • the shape of the syringe holding portion 121 is a semi-cylindrical recess so that the lower half of the outer peripheral surface of the protective case 205 can be held.
  • Each syringe holding part 121 is provided with clampers 122, 122 configured to be openable and closable. By holding the base end part of the protective case 205 with these clampers 122, the protective case 205 is fixed.
  • Each clamper 122 is pivotally supported at its end located on the side of the head, and is configured to open and close with this end as a fulcrum.
  • the syringe 200 itself can utilize a conventionally well-known thing, and has a substantially cylindrical cylinder member and the piston member slidably inserted in it as an example.
  • the piston member may be a member having a plunger attached to the tip of the flange member (rod type), or may be substantially a plunger only (rodless type).
  • the injection head 100 has a built-in piston drive mechanism for moving the piston member back and forth.
  • the piston drive mechanism those conventionally used in this type of injection head 100 can be used.
  • a motor that is a drive source
  • a mechanism that transmits power from the motor and a mechanism that is transmitted by the mechanism.
  • a presser member that moves forward and backward under the applied force.
  • the “injection head” may include a built-in control means for controlling the operation of the piston drive mechanism and the display unit. Or operation
  • movement of a piston drive mechanism etc. may be controlled by the control means incorporated in the separate controller unit.
  • the side surface of the casing 111 is held by a shaft 181 extending in the horizontal direction.
  • the injection head 100 can rotate around this axis 181, and thereby the front side (syringe side) of the injection head 100 can be directed upward or downward.
  • the shaft 181 may be provided at the upper end of a movable stand (not shown), for example.
  • the shaft 181 may be provided on a part of a ceiling-type holding mechanism, or provided on a part of a bedside arm used by being fixed to a predetermined bed or the like. There may be.
  • Manual knobs 113A and 113B are provided at the rear end portion of the casing 111 corresponding to the syringes 200A and 200B. By manually turning the manual knobs 113A and 113B, the presser member of each piston drive mechanism can be moved to an arbitrary position.
  • display units 50A and 50B (hereinafter also simply referred to as display unit 50) on which predetermined information is displayed, Several buttons 114 are arranged for performing the operation.
  • the display unit 50A corresponds to the syringe 200A
  • the display unit 50B corresponds to the syringe 200B.
  • the syringe 200A side of the upper surface of the casing of the injection head 110 is a curved surface 111A that is curved so as to swell upward.
  • the syringe 200B side is a flat horizontal surface 111B.
  • the display unit 50 includes a plurality of LEDs 26 (light sources) mounted on the substrate 28 and a character display unit 20 disposed between the LEDs 26 and the casing 111.
  • “Character display unit 20” refers to a unit in which a character display surface 31a is formed on the upper surface and predetermined information is displayed on the character display surface 31a.
  • the character display surface 31 a is a convex curved surface, and the curve of the curved surface corresponds to the curve of the inner surface of the housing 111.
  • the character displayed on the character display surface 31a is not particularly limited, but in this example, a 7-segment display 3-digit number and a character “ml” are displayed. Thereby, for example, a character such as “150 ml” can be displayed. This means that the remaining amount of the chemical in the syringe 200 is 150 ml.
  • the character display unit 20 is disposed above the light guide member assembly 21 and a light guide member assembly 21 that guides light from each LED 26 on the substrate to the housing 111 side.
  • the light guide member assembly 21 has a plurality of light guide pieces 22a arranged to display three-digit seven-segment numbers.
  • a light guide piece 22b On both sides of the plurality of light guide pieces 22a, there are provided a light guide piece 22b having a letter “ml” formed in a convex shape on the upper surface and two triangular light guide pieces 22c.
  • Each of the light guide pieces 22 a to 22 c is disposed on the optical axis of the LED 26.
  • One triangle 22c faces the front and the other triangle 22c faces the rear.
  • Each of the light guide pieces 22a to 22c is a resin part that transmits light, guides light incident from the lower surface upward, and emits the light from the upper surface.
  • each LED 26 is disposed as a light source.
  • seven LEDs 26 are arranged in the display portion of 7 segments.
  • Each light guide piece 22a to 22b may be a separate part, or a part or all of a plurality of light guide pieces may be assembled into one part.
  • the color of the mounting surface of the substrate 28 (the upper surface in FIG. 2) is not particularly limited, but as an example, it may be configured to suppress reflection of light from the LED 26 by using black or the like. According to such a configuration, since reflection of light on the substrate can be suppressed, problems such as leakage of light from an unintended portion of the housing and unclear display of characters due to reflection of light are prevented. be able to.
  • the curved character display surface 31a along the curve of the inner surface of the casing 111 can be configured by making the heights of the light guide pieces 22a to 22c different.
  • the light shielding cover 31 is a cover that covers the entire light guide pieces 22a to 22c from above.
  • the cover 31 has an upper surface 31a (character display surface) and a peripheral wall extending downward from the periphery of the upper surface 31a.
  • An opening 31b corresponding to the contour shape of each light guide piece 22a to 22c is formed on the upper surface 31a. The light guided to the housing side through the light guide pieces 22a to 22c is irradiated toward the inner surface of the housing through the opening 31b.
  • the upper surface 31a of the light shielding cover 31 does not have translucency, and serves as a light shielding member that fills the gap between the light guide pieces. Providing such an upper surface 31a prevents light from each light guide piece from being mixed, and as a result, it becomes possible to display characters clearly.
  • the portion of the casing 111 facing the upper surface 31a is a thin portion. Therefore, if the upper surface 31a is a dark color such as black, the upper surface 31a may be visible from the outside through the thin portion of the casing 111. Therefore, it is desirable that the color of the upper surface 31a be a bright color such as white.
  • the material of the light shielding cover 31 itself may be a dark color such as black and the exterior surface may be painted (for example, white).
  • the upper surface 31 a (character display surface) of the light shielding cover 31 is close to the rear surface of the casing 111 in the assembled state.
  • the material of the casing 111 may be, for example, PC (polycarbonate) or ABS (acrylonitrile / butadiene / styrene copolymer), and the resin color may be translucent white or transparent.
  • the casing surface (including the display unit 50) is painted white (for example).
  • the surface of the housing may be unpainted or only clear painted while the display unit 50 is a thin-walled part.
  • the peripheral portion 117 (see FIG. 4) of the display unit 50 may be coated with gray or black for light shielding. Thereby, it is prevented that the light of LED26 is visually recognized from the outside of the housing through a portion other than the display unit 50.
  • a diffusion prevention film (not shown) is interposed between the character display surface 31a and the inner surface of the housing 111 so that the characters can be seen more clearly by suppressing the diffusion of light on the character display surface 31a. You may do it.
  • a commercially available film can be used as the diffusion preventing film.
  • FIG. 5 is a perspective view of the light guide member assembly 21 and the like viewed from below.
  • a light shielding sheet 29 is disposed between the light guide member assembly 21 and the substrate 28.
  • the light shielding sheet 29 is formed with a plurality of openings corresponding to the contour shapes of the respective light guide pieces 22a to 22c (see FIG. 3).
  • a frame-like rib 55 surrounding the light guide member assembly 21 and the like is formed on the inner surface of the casing 111. By forming such a rib 55, light leakage from the region can be prevented.
  • the display unit 50 of the injection head 100 of the present embodiment configured as described above turns on the LED 26 so that a predetermined character appears on the surface of the housing 111 and the character can be visually recognized from the outside of the housing 111. It becomes a state. For example, when displaying “150 ml”, a predetermined LED 26 corresponding to the 7-segment display portion and an LED 26 corresponding to the display of “ml” are turned on. The light from each LED 26 is emitted toward the corresponding light guide piece 22a, 22b, and is guided to the character display surface 31a side (housing side) through each light guide piece.
  • the “150 ml” character shines on the character display surface 31a, and the light is seen from the outside through the thin portion of the casing 111 as shown in FIG.
  • the light from the light source is visible from the outside by passing through the casing 111, and therefore the opening in the casing 111 is provided. There is no need to form a part.
  • this type of injection head for example, when the syringe 200 is removed from the injection head 100 or when a tube (not shown) connected to the syringe 200 is removed, leakage of the contrast agent or the like occurs due to residual pressure after chemical injection. May come out. In such a case, even if a contrast medium or the like adheres to the display unit 50 of the injection head 100, according to the configuration of the present embodiment, those chemical solutions do not enter the housing.
  • the surface of the casing 111 can be formed flat (that is, without unevenness), and thus the contrast agent attached to the casing can be easily wiped off. is there. Moreover, even if physiological saline, an anticancer agent, etc. adhere, they can be wiped off easily.
  • the configuration of the display unit 50 as described above is particularly useful for the injection head 100 that is a device for injecting a contrast agent.
  • the character display unit 20 of the present embodiment is configured using a plurality of LEDs 26 on a substrate and a plurality of light guide pieces 22a to 22c for guiding light therefrom, and thus has such a configuration.
  • the curved character display surface 31a can be configured by appropriately changing the height of each of the light guide pieces 22a to 22c, so that the curved case portion (display unit 50A) is good as in the present embodiment. It can correspond to.
  • the characters displayed on the character display surface 31a may be, for example, alphabet characters displayed by a combination of a plurality of light guide pieces (LEDs) in addition to the 7-segment display.
  • desired characters can be displayed simply by changing the arrangement of the LEDs and the light guide pieces.
  • the character display unit 20 is configured by covering the light guide member assembly 21 with the light shielding cover 31, for example, a portion corresponding to the light shielding cover 31 and a portion corresponding to the light guide member assembly 21 are formed in two colors. It is good also as one component formed by (an example).
  • the color of the LED is not particularly limited, it is easy to understand that different colors are displayed on the display unit 50A and the display unit 50B by different colors.
  • the injection head has been described as an example.
  • a display unit may be used for other medical devices (for example, a chemical solution suction device that sucks a chemical solution into an empty syringe) to which a chemical solution (particularly a contrast medium) may adhere. It can also be applied to a container or a chemical pump.
  • the resin color of the material of the casing 111, the thickness of the casing thin portion serving as the display unit 50, and the like may be appropriately selected and adjusted according to the luminance of the light source (LED) used.
  • FIG. 6 shows a side view (half is a longitudinal sectional view) of the optical path forming member disposed on the LED.
  • This optical path forming member 222 is a slightly flat member formed in a size so as to cover each LED 26 (see FIG. 3), and its upper surface is a curved character display surface 231a.
  • the member 222 is made of resin as an example, and the material thereof is, for example, a black material that does not have optical transparency (or is very low).
  • the optical path forming member 222 is formed with a light guide hole having a shape corresponding to each of the light guide pieces 22a to 22c described above (in FIG. 6, only one of the light guide holes 222a corresponding to the 7-segment display is provided. Drawn).
  • the light guide hole 222a is formed in the thickness direction of the member (optical axis direction of the LED).
  • the optical path forming member 222 configured as described above, light from the LED is irradiated to the housing side through the air inside the light guide hole 222a and is visually recognized from the outside through the thin portion of the housing.
  • a light guide piece is used as in the above embodiment (depending on the brightness of the LED)
  • light from the LED may be excessively guided to the housing side, and characters may be blurred when viewed from the outside of the housing There is.
  • the use of the member 222 as shown in FIG. 6 can suppress blurring of characters when viewed from the outside of the housing, and can realize clear character display.
  • a white (one example) coating 223 is applied to the upper surface of the member.
  • FIG. 7 is a diagram for explaining the material and the like of each component, and does not show the actual shape of the component.
  • the upper surface of the optical path forming member 222 ′ and a part of the casing 111 are formed in a curved surface shape.
  • the material of the optical path forming member 222 ′ is a white resin material, and preferably a light reflecting material (such as metal particles) is contained in the material.
  • the material of the casing 111 shown in FIG. 7 is, for example, a colored (for example, gray) resin material having light transmission, and a coating film 111a (for example, white) having light transmission is formed on the surface thereof. Yes.
  • a gap is formed between the coating film 111a and the surface of the housing 111, but actually, the coating film 111a is formed on the surface of the housing.
  • the inner surface of the light guide hole 222a ′ of the optical path forming member 222 ′ becomes white (resin fabric color), and therefore, compared with the black case as shown in FIG. Diffusion becomes more pronounced. As a result, the entire upper opening of the light guide hole 222a ′ shines brighter and more uniformly.
  • a light-transmitting vapor deposition film may be formed on the surface of the housing instead of the coating film 111 a.
  • the resin color of the housing 111 may be transparent.
  • a light-transmitting film may be provided on the surface of the housing instead of the coating film 111 a.

Landscapes

  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

La présente invention concerne un appareil médical qui ne présente pas le risque qu'un médicament, tel qu'un agent de contraste ou un soluté, s'infiltre dans un boîtier et qui est facile à nettoyer. Une tête d'injection (100) est pourvue de : un boîtier (111) ; et une unité d'affichage (50) qui affiche des informations prédéterminées et qui est disposée dans une partie du boîtier (111). L'unité d'affichage (50) a : une source de lumière (26) disposée dans le boîtier (111) ; et une unité d'affichage de caractères (20) qui est disposée entre la surface interne du boîtier (111) et la source de lumière (26), et qui amène des caractères prédéterminés à être affichés sur la surface (31a) de celle-ci. La tête d'injection (100) est configurée de telle manière que, lorsque la source de lumière (26) est allumée, lesdits caractères peuvent être visuellement reconnus depuis l'extérieur du boîtier mentionné ci-dessus (111) au moyen de la lumière provenant de la source de lumière (26) traversant le boîtier (111), et lorsque la source de lumière (26) n'est pas allumée, les caractères ne peuvent pas être visuellement reconnus depuis l'extérieur du boîtier mentionné ci-dessus (111).
PCT/JP2011/057190 2010-04-05 2011-03-24 Appareil médical Ceased WO2011125518A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012509427A JP5964231B2 (ja) 2010-04-05 2011-03-24 医療用機器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010087385 2010-04-05
JP2010-087385 2010-04-05

Publications (1)

Publication Number Publication Date
WO2011125518A1 true WO2011125518A1 (fr) 2011-10-13

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PCT/JP2011/057190 Ceased WO2011125518A1 (fr) 2010-04-05 2011-03-24 Appareil médical

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JP (1) JP5964231B2 (fr)
WO (1) WO2011125518A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2021100849A1 (fr) * 2019-11-22 2021-05-27 株式会社メテク Dispositif médical et son procédé de fabrication

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Publication number Priority date Publication date Assignee Title
WO2018160426A1 (fr) 2017-02-28 2018-09-07 Bayer Healthcare Llc Système de lecteur d'étiquette d'identification

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US20090216190A1 (en) * 2002-12-20 2009-08-27 Medrad, Inc. Syringe having a proximal end with an outward extending lip
WO2010070799A1 (fr) * 2008-12-16 2010-06-24 パナソニック株式会社 Dispositif d'administration de médicament
WO2010119919A1 (fr) * 2009-04-15 2010-10-21 株式会社根本杏林堂 Distributeur de solution chimique

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US20090216192A1 (en) * 2002-12-20 2009-08-27 Medrad, Inc. Fluid injection apparatus having anti-rotation elements to limit syringe plunger rotation
JP2009511237A (ja) * 2006-11-22 2009-03-19 マリンクロット インコーポレイテッド 注射器プランジャのための汎用アダプタ
WO2010070799A1 (fr) * 2008-12-16 2010-06-24 パナソニック株式会社 Dispositif d'administration de médicament
WO2010119919A1 (fr) * 2009-04-15 2010-10-21 株式会社根本杏林堂 Distributeur de solution chimique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021100849A1 (fr) * 2019-11-22 2021-05-27 株式会社メテク Dispositif médical et son procédé de fabrication
JPWO2021100849A1 (fr) * 2019-11-22 2021-05-27
CN114222596A (zh) * 2019-11-22 2022-03-22 株式会社美迪克 医疗装置和医疗装置的制造方法
JP7271712B2 (ja) 2019-11-22 2023-05-11 株式会社メテク 医療装置及び医療装置の製造方法
CN114222596B (zh) * 2019-11-22 2024-07-30 株式会社美迪克 医疗装置和医疗装置的制造方法

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JP5964231B2 (ja) 2016-08-03

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