WO2022138657A1 - 医療機器 - Google Patents

医療機器 Download PDF

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Publication number
WO2022138657A1
WO2022138657A1 PCT/JP2021/047374 JP2021047374W WO2022138657A1 WO 2022138657 A1 WO2022138657 A1 WO 2022138657A1 JP 2021047374 W JP2021047374 W JP 2021047374W WO 2022138657 A1 WO2022138657 A1 WO 2022138657A1
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WO
WIPO (PCT)
Prior art keywords
ultraviolet
sterilization
uvx
radiation
irradiation
Prior art date
Application number
PCT/JP2021/047374
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English (en)
French (fr)
Japanese (ja)
Inventor
佳成 小田
Original Assignee
富士フイルム株式会社
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 富士フイルム株式会社 filed Critical 富士フイルム株式会社
Priority to JP2022571512A priority Critical patent/JPWO2022138657A1/ja
Publication of WO2022138657A1 publication Critical patent/WO2022138657A1/ja

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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation

Definitions

  • the technology disclosed here relates to medical devices.
  • Medical devices that are used repeatedly are not a little contaminated by the adhesion of bacteria and / or viruses due to contact with people such as patients or operators. Therefore, conventionally, for example, as in Japanese Patent Application Laid-Open No. 2013-248124, a technique for sterilizing a medical device that is repeatedly used by irradiating it with ultraviolet rays has been proposed. Note that sterilization means inactivating bacteria and / or viruses.
  • Japanese Patent Application Laid-Open No. 2013-248124 describes an electronic cassette used for radiography as a medical device that is repeatedly used.
  • an ultraviolet source is provided inside a holder for accommodating an electronic cassette, which is provided in a mobile radiation generator that performs radiography (so-called round-trip radiography) while going around a hospital room, and is accommodated in the holder.
  • the electronic cassette is irradiated with ultraviolet rays.
  • One embodiment according to the technique of the present disclosure is a medical device capable of visually clarifying whether or not sterilizing ultraviolet rays have been irradiated and whether or not the bactericidal effect of the sterilizing ultraviolet rays is sustained. I will provide a.
  • the medical device of the present disclosure is provided on the outer peripheral surface and at least a part of the outer peripheral surface, starts emitting light by irradiation with ultraviolet rays for sterilization, and dims after the irradiation of ultraviolet rays for sterilization is stopped, thereby for sterilization. It comprises a illuminant that emits visible light that indicates whether or not it has been irradiated with ultraviolet light and whether or not the effect of sterilization by the ultraviolet light for sterilization is sustained.
  • the illuminant is extinct while dimming after the irradiation of ultraviolet rays for sterilization is stopped.
  • the time from when the irradiation of the sterilizing ultraviolet rays is stopped until the light emitter is extinguished is shorter than the duration of the sterilizing effect of the sterilizing ultraviolet rays.
  • the light emitter is preferably a paint applied to the outer peripheral surface.
  • the light emitting body is preferably a seal that can be peelably attached to the outer peripheral surface.
  • a recess is formed on the outer peripheral surface, and it is preferable that the light emitting body is fitted in the recess.
  • an ultraviolet shielding member that shields the ultraviolet rays that sensitize the illuminant.
  • the ultraviolet shielding member is preferably a seal that can be peelably attached to the outer peripheral surface.
  • the ultraviolet shielding member is preferably a shutter that moves between a first position that covers the light emitting body and a second position that exposes the light emitting body.
  • the illuminant is provided outside the area to be irradiated with radiation.
  • the detection panel that detects radiation and outputs a radiation image is an electronic cassette built in a portable housing.
  • the patient has a holder for accommodating a cassette for radiography, and is a standing or lying position imaging table for photographing a patient in a standing or lying position.
  • the ultraviolet source is irradiated with ultraviolet rays for sterilization, and the elapsed time from the start of irradiation of the ultraviolet rays for sterilization is set to a preset time.
  • the mammography apparatus 10 takes the breast M of the patient P as a subject.
  • the mammography apparatus 10 irradiates the breast M with radiation R such as X-rays and ⁇ -rays, and acquires a radiographic image of the breast M.
  • the mammography apparatus 10 is an example of a "medical device" according to the technique of the present disclosure.
  • the mammography apparatus 10 includes an apparatus main body 11 and a control device 12.
  • the device main body 11 is installed, for example, in a radiography room of a medical facility.
  • the control device 12 is installed in, for example, a control room next to the radiography room.
  • the control device 12 is, for example, a desktop personal computer.
  • the control device 12 is communicably connected to an image database (hereinafter abbreviated as DB (Data Base)) server 14 via a network 13 such as a LAN (Local Area Network).
  • DB Data Base
  • the image DB server 14 is, for example, a PACS (Picture Archiving and Communication System) server, which receives a radiographic image from the mammography apparatus 10 and stores and manages the received radiographic image.
  • PACS Picture Archiving and Communication System
  • the terminal device 15 is also connected to the network 13.
  • the terminal device 15 is, for example, a personal computer used by a doctor who performs a medical examination using a radiographic image.
  • the terminal device 15 receives a radiation image from the image DB server 14, and displays the received radiation image on the display.
  • the device main body 11 has a stand 20 and an arm 21.
  • the stand 20 is composed of a pedestal 20A installed on the floor of the radiography room and a support column 20B extending in the height direction from the pedestal 20A.
  • the arm 21 has a substantially C-shape when viewed from the side, and is connected to the support column 20B via the connecting portion 21A. With this connection portion 21A, the arm 21 can be moved in the height direction with respect to the support column 20B, and the height can be adjusted according to the height of the patient P. Further, the arm 21 can rotate around a rotation axis perpendicular to the support column 20B, penetrating the connection portion 21A.
  • the arm 21 is composed of a radiation source accommodating portion 22, a photographing table 23, and a main body portion 24.
  • the radiation source 25 is accommodated in the radiation source accommodating portion 22.
  • Breast M is placed on the imaging table 23.
  • the detection panel 26 is housed in the shooting table 23.
  • the main body portion 24 integrally connects the radiation source accommodating portion 22 and the photographing table 23.
  • the main body portion 24 holds the radiation source accommodating portion 22 and the photographing table 23 at positions facing each other.
  • Handrails 27 on both sides of the main body 24 are provided so that the hand of the patient P can be grasped.
  • An indirect lighting lamp 28 is attached to the main body portion 24.
  • the indirect lighting lamp 28 irradiates the support column 20B with warm-colored dark indirect lighting light in order to alleviate the anxiety of the patient P.
  • the indirect lighting lamp 28 may be attached to the outer surface and / or the inside of the support column 20B. In this case, the indirect illumination lamp 28 irradiates the indirect illumination light toward the main body portion 24.
  • the radiation source 25 includes a radiation tube 29 and a housing 30 that houses the radiation tube 29.
  • the inside of the housing 30 is filled with insulating oil.
  • the radiation tube 29 irradiates the radiation R toward the breast M placed on the imaging table 23.
  • the detection panel 26 detects the radiation R transmitted through the breast M and outputs a radiation image.
  • the radiation tube 29 has a cathode and an anode.
  • the cathode emits electrons.
  • the anode emits radiation R when electrons collide.
  • the cathode and anode are housed in a vacuum glass tube having a substantially cylindrical shape.
  • the cathode is, for example, a cold cathode. More specifically, the cathode is a field emission type having an electron emission source that emits an electron beam toward the anode by utilizing the field emission phenomenon.
  • the anode is a rotating anode that is rotated by a rotating mechanism. A fixed anode whose position is fixed without rotating may be used.
  • the tube voltage from the tube voltage generator (not shown) is applied between the cathode and the anode.
  • an electron beam is emitted from the cathode toward the anode.
  • the radiation R is emitted from the point (focal point) of the anode where the electron beam collides. Radiation R is emitted to the outside through an irradiation window provided on the glass tube.
  • An irradiation field limiting device 31 is provided between the radiation source accommodating portion 22 and the photographing table 23.
  • the irradiation field limiting device 31 is also called a collimator, and defines the irradiation field of the radiation R to the photographing table 23.
  • the irradiation field limiting device 31 is formed with an incident opening in which the radiation R from the radiation tube 29 is incident and an exit opening in which the radiation R is emitted.
  • Four shielding plates are provided in the vicinity of the exit opening.
  • the shielding plate is made of a material that shields radiation R, for example, lead.
  • the shielding plate is arranged on each side of the quadrangle, in other words, is assembled in a checkered pattern, and forms a quadrangular irradiation opening through which the radiation R is transmitted.
  • the irradiation field limiting device 31 changes the size of the irradiation aperture by changing the position of each shielding plate, thereby changing the irradiation field of the radiation R to the photographing table 23.
  • An irradiation field lamp is provided in the irradiation field limiting device 31.
  • the irradiation field lamp emits, for example, orange visible light.
  • the visible light emitted from the irradiation field lamp is emitted toward the photographing table 23 through the exit opening as light representing the irradiation field.
  • a filter for changing the radiation quality of the radiation R may be provided in the irradiation field limiting device 31.
  • a face guard 32 is attached to the radiation source accommodating portion 22.
  • the face guard 32 is formed or coated with a material that does not transmit radiation R to protect the face of patient P from radiation R.
  • a compression plate 33 is attached between the shooting table 23 and the irradiation field limiting device 31.
  • the compression plate 33 is made of a material that transmits radiation R.
  • the compression plate 33 is arranged at a position facing the photographing table 23.
  • the compression plate 33 can be moved in a direction toward the photographing table 23 and a direction away from the photographing table 23 according to the operation of the elevating switch (not shown).
  • the compression plate 33 moves toward the imaging table 23, sandwiches the breast M with the imaging table 23, and presses the breast M.
  • An ultraviolet source 34 is provided on the outer surface of the irradiation field limiting device 31 facing the compression plate 33. More specifically, the ultraviolet source 34 is provided on the outer surface of the irradiation field limiting device 31 on the back side of the face guard 32. As an example, as shown in FIG. 3, the ultraviolet source 34 applies ultraviolet UVX for sterilization having a center wavelength of 200 nm or more and 280 nm or less (for example, 254 nm or 222 nm) and a constant intensity to the face guard 32, the compression plate 33, and the like. Irradiate toward. As the ultraviolet source 34, an LED (Light Emitting Diode), an LD (Laser Diode), or the like can be adopted in addition to a general ultraviolet lamp using a quartz tube such as an excimer lamp.
  • an LED Light Emitting Diode
  • LD Laser Diode
  • the face guard 32 and the compression plate 33 are made of a material that transmits ultraviolet rays UVX for sterilization.
  • the material that transmits ultraviolet UVX for sterilization include the product name "Cytop (registered trademark)" manufactured by AGC Inc. Therefore, the ultraviolet UVX for sterilization enters the face guard 32 from the back surface 51 (see FIG. 6) of the face guard 32 and irradiates the surface 50 (see FIG. 6) of the face guard 32 facing the face of the patient P. do. Further, the ultraviolet UVX for sterilization enters the compression plate 33 from the back surface 58 (see FIG. 7) of the compression plate 33 and irradiates the surface 57 (see FIG. 7) of the compression plate 33 in contact with the breast M.
  • the sterilizing ultraviolet UVX transmitted through the compression plate 33 irradiates the surface 46 (see FIG. 5) of the imaging table 23 on which the breast M is placed. That is, in this example, the photographing table 23, the face guard 32, and the compression plate 33 are mainly irradiated with ultraviolet UVX for sterilization.
  • the ultraviolet source control unit 40 is connected to the ultraviolet source 34.
  • the ultraviolet source control unit 40 controls the operation of the ultraviolet source 34.
  • the ultraviolet source control unit 40 is constructed in the CPU (Central Processing Unit) of the control device 12, for example, by executing a program.
  • a lighting instruction switch 41 is connected to the ultraviolet source control unit 40.
  • the lighting instruction switch 41 is displayed as a GUI (Graphical User Interface) on the display of the control device 12, for example.
  • the ultraviolet source control unit 40 When the lighting instruction switch 41 is operated by an operator such as a radiologist through the input device of the control device 12, the ultraviolet source control unit 40 outputs the lighting instruction signal LIS to the ultraviolet source 34. As a result, irradiation of ultraviolet UVX for sterilization by the ultraviolet source 34 is started.
  • the ultraviolet source control unit 40 measures the elapsed time from the start of irradiation of ultraviolet UVX for sterilization. When the elapsed time reaches the preset set time TS, the ultraviolet source control unit 40 outputs the extinguishing instruction signal OIS. As a result, the irradiation of the ultraviolet UVX for sterilization by the ultraviolet source 34 is stopped. That is, when the lighting instruction switch 41 is operated, the ultraviolet source 34 emits ultraviolet UVX for sterilization during the set time TS.
  • the set time TS is the irradiation time of ultraviolet UVX required for sterilizing bacteria and / or viruses.
  • the set time TS varies depending on the intensity of ultraviolet UVX for sterilization, the type of bacteria and / or virus to be sterilized, and the like, but is generally several seconds to several tens of minutes. For example, it has been reported that the new coronavirus (SARS (Severe Acute Respiratory Syndrome) -CoV (Coronavirus) -2) is inactivated by irradiation with ultraviolet UVX for several seconds.
  • SARS severe Acute Respiratory Syndrome
  • -CoV Coronavirus
  • the detection panel 26 has a rectangular detection surface 45.
  • the detection surface 45 is a surface for detecting the radiation R transmitted through the breast M. More specifically, the detection surface 45 is a two-dimensional plane in which pixels that convert radiation R into an electric signal are two-dimensionally arranged.
  • Such a detection panel 26 is called an FPD (Flat Panel Detector).
  • the detection panel 26 has a scintillator that converts the radiation R into visible light, and may be an indirect conversion type that converts the visible light emitted by the scintillator into an electric signal, or a direct conversion type that directly converts the radiation R into an electric signal. ..
  • the surface 46 of the photographing table 23 has a rectangular shape that is one size larger than the detection surface 45 of the detection panel 26.
  • the surface 46 is irradiated with radiation R in the region IA corresponding to the detection surface 45.
  • L-shaped light emitters 47A1 are provided along the shape of the corners.
  • the illuminant 47A1 is provided outside the region IA.
  • the light emitter 47A1 is a paint applied to the surface 46 by screen printing or the like.
  • the surface 46 is an example of "at least a portion of the outer peripheral surface” according to the technique of the present disclosure.
  • a rectangular illuminant 47B is provided on the upper part of the surface 50 of the face guard 32.
  • the light emitting body 47B is a paint applied to the surface 50 by screen printing or the like, similarly to the light emitting body 47A1.
  • the surface 50 is an example of "at least a part of the outer peripheral surface” according to the technique of the present disclosure.
  • the compression plate 33 has a box-shaped compression plate main body 55 and a mounting portion 56 that attaches the compression plate main body 55 to the main body portion 24 so as to be able to move up and down.
  • the back surface 58 of the compression plate main body 55 is irradiated with radiation R in the region IA.
  • Region IA is one size smaller than the back surface 58.
  • a light emitting body 47C is provided on the opening edge surface 59 of the compression plate main body 55 and the surface 61 of the base 60 of the mounting portion 56.
  • the light emitting body 47C is a paint applied to the opening edge surface 59 and the surface 61 by screen printing or the like, similarly to the light emitting bodies 47A1 and 47B.
  • the opening edge 59 and the surface 61 are outside the region IA. That is, the light emitter 47C is provided outside the region IA.
  • the opening edge surface 59 and the surface 61 are examples of "at least a part of the outer peripheral surface” according to the technique of the present disclosure.
  • the light emitters 47A1 to 47C may be collectively referred to as a light emitter 47.
  • the illuminant 47 starts emitting visible light by irradiation with ultraviolet UVX for sterilization.
  • the light emitting body 47 reaches the maximum value (MAX) of visible light immediately after irradiation with ultraviolet UVX for sterilization.
  • the light emitting body 47 maintains the maximum amount of light emitted while the ultraviolet UVX for sterilization is irradiated with TS for a set time.
  • the amount of light emitted from the light emitting body 47 gradually decreases (dims) after the irradiation of ultraviolet UVX for sterilization is stopped.
  • the light emitting body 47 is extinguished after a lapse of time TA from the stop of irradiation of the sterilizing ultraviolet UVX.
  • the illuminant 47 indicates whether or not the ultraviolet rays UVX for sterilization are irradiated and whether or not the effect of sterilization by the ultraviolet rays UVX for sterilization is sustained.
  • the effect of sterilization by ultraviolet UVX for sterilization gradually increases from the start of irradiation of ultraviolet UVX for sterilization, and when the elapsed time from the start of irradiation reaches the set time TS and the irradiation of ultraviolet UVX for sterilization is stopped. Reach the maximum value (MAX).
  • MAX maximum value
  • the effect of sterilization is maintained at the maximum value immediately after the irradiation of ultraviolet UVX for sterilization is stopped, but gradually decreases. Then, it disappears after a lapse of time TB from the stop of irradiation of ultraviolet UVX for sterilization.
  • the inactivation rate of bacteria and / or virus in the region irradiated with ultraviolet UVX for sterilization is 99% or more, preferably 99.9%.
  • the maximum value (MAX) value varies depending on the wavelength of ultraviolet UVX for sterilization, irradiation conditions such as intensity, types of bacteria and / or viruses, environmental conditions such as temperature and humidity, measurement method of inactivation rate, and the like. In some cases.
  • the time TA from after the irradiation of the sterilizing ultraviolet UVX is stopped until the illuminant 47 is extinguished (hereinafter referred to as the quenching time of the illuminant 47) is shorter than the duration TB of the sterilizing effect of the sterilizing ultraviolet UVX.
  • the duration of the sterilizing effect TB varies depending on the intensity of ultraviolet UVX for sterilization, the type of bacteria and / or virus to be sterilized, and the like, but is generally several minutes to several hours.
  • the quenching time TA of the illuminant 47 is, for example, 70% to 80% of the duration TB of the bactericidal effect.
  • the quenching time TA of the illuminant 47 is, for example, 7 to 8 minutes.
  • the luminous body 47 includes a luminous paint manufactured by Asahipen Corporation (https://www.asahipen.jp/products/view/16813) and a transparent phosphorescent paint manufactured by Tateyama Kagaku Kogyo Co., Ltd. (https: // www). .tateyama.jp/product/dev_newmaterial.html) etc. can be adopted.
  • the operator operates the lighting instruction switch 41 to instruct the lighting of the ultraviolet UVX for sterilization for the purpose of sterilizing the parts contaminated by the patient P such as the photographing table 23, the face guard 32, and the compression plate 33 (step). YES with ST100).
  • the ultraviolet source control unit 40 outputs a lighting instruction signal LIS to the ultraviolet source 34, and the ultraviolet source 34 irradiates the ultraviolet UVX for sterilization (step ST110).
  • visible light is emitted from the illuminant 47 irradiated with ultraviolet UVX for sterilization (step ST120).
  • the ultraviolet source control unit 40 When the elapsed time from the start of irradiation of ultraviolet UVX for sterilization reaches the set time TS (YES in step ST130), the ultraviolet source control unit 40 outputs an extinguishing instruction signal OIS to the ultraviolet source 34. As a result, irradiation of ultraviolet UVX for sterilization is stopped (step ST140). Then, the light emitting body 47 is extinct while dimming (step ST150).
  • the operator After irradiation with ultraviolet UVX for sterilization, the operator causes patient P to enter the radiography room. Then, the breast M of the patient P is placed on the imaging table 23 and compressed by the compression plate 33. The operator moves to the control room, sets the irradiation condition of the radiation R via the control device 12, and then inputs an instruction to start radiography. As a result, the radiation tube 29 is operated according to the irradiation conditions, and the radiation R is irradiated. The radiation R emitted from the radiation tube 29 is incident on the irradiation field limiting device 31. The radiation R incident on the irradiation field limiting device 31 passes through the irradiation opening formed by the shielding plate. This defines the irradiation field of radiation R.
  • the irradiation field is defined by the irradiation field limiting device 31, and the radiation R irradiated to the breast M is detected by the detection panel 26. As a result, a radiation image is output from the detection panel 26. The radiation image is displayed on the display of the control device 12 after various image processings are performed by the control device 12.
  • the mammography apparatus 10 is provided on the surface 46 of the imaging table 23, the surface 50 of the face guard 32, the opening edge surface 59 of the compression plate main body 55, and the surface 61 of the base 60 of the mounting portion 56.
  • a light emitter 47 is provided. The illuminant 47 starts emitting light by irradiation with ultraviolet UVX for sterilization, and dims after the irradiation of ultraviolet UVX for sterilization is stopped to determine whether or not the ultraviolet UVX for sterilization has been irradiated and the ultraviolet UVX for sterilization. Shows whether the bactericidal effect of UV rays is sustained. Therefore, it is possible to visually clarify whether or not the sterilizing ultraviolet UVX has been irradiated and whether or not the sterilizing effect of the sterilizing ultraviolet UVX is sustained.
  • the illuminant 47 is quenched while dimming after the irradiation of the sterilizing ultraviolet UVX is stopped. Therefore, regardless of the amount of light emitted, when visible light is emitted from the light emitting body 47, it can be clearly displayed that at least ultraviolet UVX for sterilization has been irradiated.
  • the quenching time TA of the illuminant 47 is shorter than the duration TB of the effect of sterilization by the ultraviolet UVX for sterilization.
  • the quenching time TA of the illuminant 47 is longer than the duration TB of the bactericidal effect, the illuminant 47 may emit visible light even though the bactericidal effect has disappeared. In this case, the operator may be misunderstood that the bactericidal effect is sustained. In the technique of the present disclosure, there is no such concern because the quenching time TA of the illuminant 47 is shorter than the duration TB of the bactericidal effect as described above.
  • the light emitting body 47 includes the surface 46 of the photographing table 23, the surface 50 of the face guard 32, the opening edge surface 59 of the compression plate main body 55, and the surface 61 of the base 60 of the mounting portion 56. It is a paint applied to. Therefore, the light emitting body 47 can be provided relatively easily.
  • the illuminant 47 is provided outside the region IA to which the radiation R is irradiated. Therefore, it is possible to prevent the image quality of the radiation image from being deteriorated by the light emitting body 47, such as the light emitting body 47 being reflected in the radiation image.
  • the mammography apparatus 10 has a built-in detection panel 26 that detects radiation R and outputs a radiographic image, and sandwiches the breast M between the imaging table 23 on which the breast M of the patient P is placed and the imaging table 23. It has a compression plate 33 that compresses with.
  • the photographing table 23 and the compression plate 33 are irradiated with ultraviolet UVX for sterilization. Further, a light emitting body 47 is provided on the photographing table 23 and the compression plate 33.
  • the imaging table 23 and the compression plate 33 are locations contaminated by the patient P or the like.
  • An extinguishing instruction switch may be provided as a pair with the lighting instruction switch 41, and irradiation of ultraviolet UVX for sterilization may be stopped when the operator gives an instruction to extinguish the light through the extinguishing instruction switch.
  • the operation of the ultraviolet source 34 is controlled by the ultraviolet source control unit 40 for sterilization. Irradiation of ultraviolet UVX may be started. In this case, if it is detected that a person has entered the radiography room during the irradiation of the sterilizing ultraviolet UVX, the irradiation of the sterilizing ultraviolet UVX is stopped, and the person is irradiated with the sterilizing ultraviolet UVX. It may be prevented.
  • the location where the ultraviolet source 34 is provided is not limited to the outer surface of the illustrated irradiation field limiting device 31.
  • An ultraviolet source 34 may be provided inside the irradiation field limiting device 31. More specifically, the ultraviolet source 34 is provided along with the irradiation field lamp.
  • the sterilizing ultraviolet UVX emitted from the ultraviolet source 34 is irradiated toward the photographing table 23 through the exit opening of the irradiation field limiting device 31 in the same manner as the visible light emitted from the irradiation field lamp. At this time, the shielding plate is moved to a position where the size of the irradiation opening is maximized so that the irradiation range of the ultraviolet UVX for sterilization is maximized.
  • the ultraviolet source 34 is provided inside the irradiation field limiting device 31, the patient P and the operator will not be touched, so that there is no risk of collision and damage. Further, if the ultraviolet source 34 is provided alongside the irradiation field lamp, the ultraviolet UVX for sterilization can be irradiated by using the same mechanism as the visible light from the irradiation field lamp. However, since it is necessary to move the shielding plate to a position where the size of the irradiation opening is maximized, it is preferable to provide the ultraviolet source 34 on the outer surface of the irradiation field limiting device 31 in that such control is not necessary.
  • the location where the ultraviolet source 34 is installed is not limited to the outer surface or the inside of the irradiation field limiting device 31, and the number of installed ultraviolet sources 34 is not limited to one.
  • the ultraviolet source 34 may be provided at any location such as the outer surface facing the main body 24 of the irradiation field limiting device 31 and adjacent to the indirect lighting lamp 28. Any place can be used as long as it is possible to irradiate the place contaminated by the patient P or the like with ultraviolet UVX for sterilization. It is possible to sterilize parts such as the stand 20, the main body 24, and the handrail 27 that cannot be covered by one ultraviolet source 34 provided in the irradiation field limiting device 31.
  • the ultraviolet source 34 may be provided with a swing function to cover a wide range of areas with one unit.
  • an ultraviolet source 34 that is removable with a magnet or the like and that wirelessly communicates with the control device 12 may be used. According to such an ultraviolet source 34, it can be freely attached to a place to be sterilized. Alternatively, the ultraviolet source 34 may be attached to a place away from the main body 11 of the apparatus, such as the wall surface or ceiling of the radiography room, by a simple attachment such as a screw. In this case, it is preferable that the communication with the control device 12 is performed wirelessly.
  • the installation location of the light emitting body 47 is not limited to the surface 46 of the imaging table 23, the surface 50 of the face guard 32, the opening edge surface 59 of the compression plate main body 55, and the surface 61 of the base 60 of the mounting portion 56.
  • a light emitting body 47 may be provided on the surface of the stand 20, the main body 24, the handrail 27, or the like.
  • the illuminant 47 is not limited to paint.
  • the light emitting body 47 may be a seal that can be peelably attached to the outer peripheral surface.
  • a seal-shaped light emitting body 47A2 is attached to the four corners of the surface 46 of the photographing table 23.
  • the light emitting body 47 can be provided more easily. Further, when the light emitting body 47 deteriorates in timekeeping, it can be easily replaced with a new one.
  • a recess 70 may be formed on the outer peripheral surface, and the light emitting body 47 may be fitted in the recess 70.
  • the recess 70 has a size slightly smaller than that of the light emitter 47, and the light emitter 47 is press-fitted into the recess 70.
  • FIG. 12 shows how the block-shaped light emitter 47A3 is fitted into the recesses 70 formed at the four corners of the surface 46 of the photographing table 23, as in the case of FIGS. 5 and 11. In this way, if the concave portion 70 is formed on the outer peripheral surface and the light emitting body 47 is fitted in the concave portion 70, as in the case of the seal of FIG. 11, when the light emitting body 47 deteriorates in timekeeping, it can be easily replaced with a new one. Can be exchanged.
  • FIGS. 11 and 12 show an example in which the light emitters 47A2 and 47A3 are used instead of the light emitters 47A1, the light emitters 47B and 47C may also be used as a seal or may be fitted in the recess 70. .. Similarly, the light emitters 47D (see FIGS. 20 and 21), 47E (see FIG. 23), 47F (see FIG. 26), and 47G (see FIG. 27) described below may be used as paints or seals. Alternatively, it may be configured to be fitted in the recess 70.
  • an ultraviolet shielding member 75 that shields ultraviolet rays that are sensitive to the light emitting body 47 is provided.
  • the light emitting body 47 is covered with the ultraviolet shielding member 75.
  • the ultraviolet shielding member 75 is a seal that can be peelably attached to the outer peripheral surface.
  • the ultraviolet shielding member 75 transmits visible light, but shields ultraviolet rays that are sensitive to the light emitting body 47.
  • the ultraviolet rays that make the illuminant 47 sensitive are not only ultraviolet rays UVX for sterilization, but also, for example, ultraviolet rays contained in the illumination light from a fluorescent lamp installed in the radiation photographing room, or sunlight inserted into the radiation photographing room. It also includes UVN (see FIG. 14) such as UV contained.
  • the ultraviolet UVX for sterilization when the ultraviolet UVX for sterilization is not irradiated, the light emitting body 47 is covered with the ultraviolet shielding member 75, whereby the irradiation of the ultraviolet UVN to the light emitting body 47 is prevented.
  • the ultraviolet shielding member 75 when the ultraviolet UVX for sterilization is irradiated, the ultraviolet shielding member 75 is peeled off by the operator, and the light emitting body 47 is exposed. As a result, ultraviolet UVX for sterilization is applied to the light emitter 47.
  • FIGS. 13 and 14 show an embodiment in which the light emitting body 47A1 provided on the surface 46 of the photographing table 23 is covered with the ultraviolet shielding member 75.
  • the ultraviolet shielding member that shields the ultraviolet rays that are sensitive to the light emitting body 47. 75 is provided. Therefore, it is possible to prevent the illuminant 47 from inadvertently emitting light in response to the ultraviolet UVN when the ultraviolet UVX for sterilization is not irradiated. Although the illuminant 47 emits light in response to the ultraviolet UVN, there is no possibility of giving the operator a false recognition that the ultraviolet UVX for sterilization is irradiated or the effect of sterilization is sustained. Further, since the ultraviolet shielding member 75 transmits visible light, even if the light emitting body 47 is covered with the ultraviolet shielding member 75, the operator can visually recognize that the light emitting body 47 is emitting light.
  • the ultraviolet shielding member 75 is a seal that can be peelably attached to the outer peripheral surface. Therefore, the ultraviolet shielding member 75 can be attached or peeled off relatively easily.
  • a laminated structure 77 in which a light emitting body 47 and an ultraviolet shielding member 75 are both sealed and a plurality of these are alternately laminated may be provided on the outer peripheral surface.
  • a new illuminant 47 and an ultraviolet shielding member 75 can always be used for each irradiation of ultraviolet UVX for sterilization.
  • the UV shielding member 75 is not limited to the seal. As an example, as shown in FIG. 16, the ultraviolet shielding member 75 may be a shutter.
  • the ultraviolet shielding member 75 is a fan-shaped shutter that opens and closes around the drive shaft 80. More specifically, when the ultraviolet UVX for sterilization is not irradiated, the ultraviolet shielding member 75 is in the first position covering the light emitting body 47. This prevents the illuminant 47 from being irradiated with ultraviolet UVN. On the other hand, when the ultraviolet UVX for sterilization is irradiated, the ultraviolet shielding member 75 is in the second position where the light emitting body 47 is exposed. As a result, ultraviolet UVX for sterilization is applied to the light emitter 47. Note that FIG. 16 shows an embodiment in which the light emitting body 47A1 provided on the surface 46 of the photographing table 23 is covered with the ultraviolet shielding member 75, as in the case of FIGS. 13 and 14.
  • the control device 12 controls the movement of the ultraviolet shielding member 75 between the first position and the second position. Specifically, when the ultraviolet source 34 does not irradiate the ultraviolet UVX for sterilization, the control device 12 sets the ultraviolet shielding member 75 as the first position. On the other hand, when the ultraviolet UVX for sterilization is irradiated from the ultraviolet source 34 in response to the operation of the lighting instruction switch 41, the control device 12 sets the ultraviolet shielding member 75 as the second position.
  • the ultraviolet shielding member 75 is a shutter that moves between the first position that covers the light emitting body 47 and the second position that exposes the light emitting body 47, the ultraviolet shielding member 75 is attached or peeled off. You can save the trouble of doing it.
  • the shape of the shutter is not limited to the illustrated fan shape, and may be, for example, a rectangular shape.
  • a light emitting body 47 is provided on the outer peripheral surface of the electronic cassette 105 used in the mobile radiation generator 90.
  • the mobile radiation generator 90 includes a main body portion 91, a support column portion 92, and an arm portion 93.
  • Four wheels 94 are attached to the lower part of the main body 91 on the front, rear, left and right sides.
  • the mobile radiation generator 90 can move in the medical facility by the wheel 94, and is used for so-called round-trip radiography in which a patient is photographed while rotating around a hospital room. Therefore, the mobile radiation generator 90 is also called a round-trip car.
  • the mobile radiation generator 90 can be brought into the operating room and radiographed during the operation.
  • the main body portion 91 includes a central portion 95 and a holder portion 96.
  • a control device 97 is built in the central portion 95.
  • the holder portion 96 is arranged on the back surface of the central portion 95.
  • the holder portion 96 has a holder portion main body 100 and a lid 101.
  • the lid 101 can be opened and closed with respect to the holder main body 100 (see FIG. 18).
  • the holder portion main body 100 is provided with holders 102A, 102B, and 102C.
  • the holders 102A to 102C each detachably accommodate one electronic cassette 105.
  • the electronic cassette 105 has a plurality of types such as 17-inch x 17-inch, 17-inch x 14-inch, and 12-inch x 10-inch vertical and horizontal sizes.
  • the holders 102A to 102C can accommodate the electronic cassette 105 having a plurality of types, regardless of the type.
  • the electronic cassette 105 is an example of a "medical device" according to the technique of the present disclosure. In the following, the holders 102A to 102C may be collectively referred to as the holder 102.
  • a handle 107 is provided at a position protruding above the central portion 95.
  • the handle 107 has a long columnar shape in the width direction of the central portion 95. The handle 107 is gripped by the operator when maneuvering the mobile radiation generator 90.
  • An irradiation switch 108 is attached to the upper part of the back surface of the central portion 95.
  • the irradiation switch 108 is a switch for the operator to instruct the start of irradiation of the radiation R.
  • An extension cable (not shown) is connected to the irradiation switch 108, and it can be used by removing it from the central portion 95.
  • the strut portion 92 is a prismatic shape and is erected along the height direction.
  • the strut portion 92 is arranged at the upper portion of the front wheel 94 and at the center position in the width direction.
  • the arm portion 93 is prismatic like the strut portion 92.
  • the base end of the arm portion 93 is attached to the support column portion 92.
  • a radiation source 110 is attached to the arm portion 93 at a tip that is a free end opposite to the base end.
  • the radiation source 110 has a built-in radiation tube 111. Further, an irradiation field limiting device 112 is attached to the radiation source 110.
  • the strut portion 92 can rotate about the vertical axis with respect to the main body portion 91. Further, the support column portion 92 can be expanded and contracted up and down along the height direction.
  • the arm portion 93 is bent at a right angle to the strut portion 92.
  • the arm portion 93 can be expanded and contracted back and forth with respect to the support column portion 92 along a direction orthogonal to the height direction.
  • the radiation source 110 and the irradiation field limiter 112 can rotate around an axis parallel to the width direction thereof. Further, the radiation source 110 and the irradiation field limiter 112 can rotate about an axis parallel to the front-back direction thereof.
  • the holder 102A is provided with an ultraviolet source 120A.
  • the ultraviolet source 120A has substantially the same length as the width of the holder 102A.
  • the ultraviolet source 120A irradiates the electronic cassette 105 housed in the holder 102A with ultraviolet UVX for sterilization.
  • the holder 102B is provided with an ultraviolet source 120B
  • the holder 102C is provided with an ultraviolet source 120C.
  • a total of nine ultraviolet sources 120B are arranged, four on each of the two side surfaces of the holder 102B facing the front surface 133 and the back surface 134 of the electronic cassette 105, and one on the inner surface of the top plate of the lid 101.
  • four ultraviolet sources 120C are arranged on each of the two side surfaces of the holder 102C facing the front surface 133 and the back surface 134 of the electronic cassette 105, and one on the inner surface of the top plate of the lid 101, for a total of nine.
  • the ultraviolet source 120B irradiates the electronic cassette 105 housed in the holder 102B with ultraviolet UVX for sterilization.
  • the ultraviolet source 120C irradiates the electronic cassette 105 housed in the holder 102C with ultraviolet UVX for sterilization.
  • the ultraviolet sources 120A to 120C as with the ultraviolet source 34, an LED (Light Emitting Diode), LD (Laser Diode), or the like may be adopted in addition to a general ultraviolet lamp using a quartz tube such as an excimer lamp. can. Further, the sterilizing ultraviolet UVX irradiated by the ultraviolet sources 120A to 120C has a center wavelength of 200 nm or more and 280 nm or less (for example, 254 nm or 222 nm), and the intensity is constant. In the following, the ultraviolet sources 120A to 120C may be collectively referred to as the ultraviolet source 120.
  • the holder 102A is provided with a detachable sensor 121A.
  • the attachment / detachment sensor 121A detects whether or not the electronic cassette 105 is housed inside the holder 102A.
  • the detachable sensor 121A is a limit switch that turns on when the electronic cassette 105 is housed in the holder 102A and turns off when the electronic cassette 105 is removed from the holder 102A.
  • the detachable sensor 121A is a photo sensor composed of a light emitting unit and a light receiving unit.
  • the holder 102B is provided with the detachable sensor 121B
  • the holder 102C is provided with the detachable sensor 121C.
  • the attachment / detachment sensor 121B detects whether or not the electronic cassette 105 is housed inside the holder 102B.
  • the detachable sensor 121C detects whether or not the electronic cassette 105 is housed inside the holder 102C.
  • the detachable sensors 121A to 121C may be collectively referred to as the detachable sensor 121.
  • a lid sensor 122 is provided at the engagement portion of the holder portion main body 100 with the lid 101.
  • the lid sensor 122 detects the opening and closing of the lid 101.
  • the lid sensor 122 is a limit switch that turns on when the lid 101 is closed and turns off when the lid 101 is opened.
  • the lid sensor 122 is a photo sensor composed of a light emitting unit and a light receiving unit. In this case, when the lid 101 is closed, the light from the light projecting unit is blocked, and when the lid 101 is opened, the light from the light projecting unit is received by the light receiving unit.
  • the ultraviolet source 120 it is detected by the detachable sensor 121 that the electronic cassette 105 is housed inside the holder 102 (the detachable sensor 121 is turned on), and the lid 101 is opened by the lid sensor 122.
  • the lid sensor 122 is turned on
  • irradiation with ultraviolet UVX for sterilization is started.
  • the ultraviolet source 120 stops the irradiation of the sterilizing ultraviolet UVX.
  • the ultraviolet source 120 is a sterilizing ultraviolet UVX when it is detected by the detachable sensor 121 that the electronic cassette 105 is not housed inside the holder 102 (the detachable sensor 121 is turned off). Do not irradiate. In this case, even when the lid 101 is closed and the lid sensor 122 is turned on, the ultraviolet source 120 does not irradiate the ultraviolet UVX for sterilization.
  • the ultraviolet source 120 has a sterilizing ultraviolet UVX. Stop the irradiation of. When it is detected again by the lid sensor 122 that the lid 101 is closed, the ultraviolet source 120 resumes irradiation with ultraviolet UVX for sterilization.
  • the electronic cassette 105 has a housing 130, a detection panel 131, a battery 132, and the like.
  • the housing 130 has a rectangular rectangular parallelepiped shape with a rectangular planar shape, and houses the detection panel 131, the battery 132, and the like inside.
  • the battery 132 is detachably loaded in the central portion of the back surface 134 of the housing 130.
  • Most of the surface 133 of the housing 130 is made of a material that transmits radiation R such as carbon.
  • the portion formed by the material that transmits the radiation R such as carbon is the region IA to which the radiation R is irradiated.
  • the electronic cassette 105 is placed under the patient P lying on the bed with the surface 133 of the housing 130 facing the radiation source 110.
  • the housing 130 includes a control circuit that controls the operation of the detection panel 131, and a radiation image is generated by converting the signal charge of the pixels of the detection panel 131 into pixel values. It has a built-in signal processing circuit and the like. In addition, a wireless communication unit or the like that performs wireless communication with the control device 97 is also built-in.
  • the electronic cassette 105 has a function of detecting the start and end of irradiation of radiation R.
  • the control circuit that controls the operation of the detection panel 131 causes the detection panel 131 to perform the storage operation of accumulating the signal charge in the pixels.
  • the control circuit causes the detection panel 131 to perform a read operation of reading the accumulated signal charge from the pixel. As a result, a radiation image is output from the detection panel 131.
  • L-shaped light emitters 47D are provided at the four corners of the surface 133 of the housing 130 along the shape of the corners. Further, as shown in FIG. 21, a rectangular light emitting body 47D is provided on the back surface 134 of the housing 130 so as to sandwich the battery 132.
  • the front surface 133 and the back surface 134 of the housing 130 are examples of "at least a part of the outer peripheral surface” according to the technique of the present disclosure.
  • the illuminant 47D starts emitting light by irradiating the sterilizing ultraviolet UVX from the ultraviolet source 120, and dims after the irradiation of the sterilizing ultraviolet UVX is stopped. It emits visible light. As a result, the illuminant 47D displays whether or not the ultraviolet source 120 has irradiated the ultraviolet UVX for sterilization, and whether or not the effect of sterilization by the ultraviolet UVX for sterilization from the ultraviolet source 120 is sustained.
  • the light emitting body 47D is provided on the front surface 133 and the back surface 134 of the electronic cassette 105 in which the detection panel 131 that detects the radiation R and outputs the radiation image is built in the portable housing 130. ..
  • the front surface 133 and the back surface 134 of the electronic cassette 105 are locations contaminated by the patient P or the like. Therefore, by providing the light emitter 47D in the electronic cassette 105, whether or not the ultraviolet UVX for sterilization is applied to the portion contaminated by the patient P or the like, and for sterilization in the portion contaminated by the patient P or the like. It is possible to visually clarify whether or not the bactericidal effect of the ultraviolet UVX is sustained.
  • the holder 102 may be capable of accommodating the electronic cassette 105 with the grid 140 attached.
  • the grid 140 is detachably attached to the surface 133 of the housing 130 of the electronic cassette 105.
  • the grid 140 removes the scattered radiation generated when the radiation R passes through the patient P.
  • the grid 140 is composed of a rectangular plate-shaped grid main body 141 and a holding frame 142 that holds the grid main body 141.
  • the grid body 141 has a size that covers substantially the entire surface 133 of the housing 130 when the grid 140 is attached to the surface 133 of the housing 130.
  • the area occupied by the grid body 141 corresponds to the area IA to which the radiation R is irradiated.
  • the holding frame 142 is made of a conductive material having electromagnetic wave shielding properties such as aluminum or stainless steel, and has a size slightly larger than the surface 133 of the housing 130.
  • the holding frame 142 is provided with a mechanism for fixing the grid 140 to the surface 133 of the housing 130 to prevent the grid 140 from falling off.
  • a light emitter 47E is provided on the surface 143 of the holding frame 142.
  • the surface 143 of the holding frame 142 is outside the region IA to which the radiation R is irradiated. That is, the light emitting body 47E is provided outside the region IA to which the radiation R is irradiated.
  • the surface 143 of the holding frame 142 is an example of "at least a part of the outer peripheral surface” according to the technique of the present disclosure.
  • the illuminant 47E starts emitting light by irradiating the sterilizing ultraviolet UVX from the ultraviolet source 120, and emits visible light that is dimmed after the irradiation of the sterilizing ultraviolet UVX is stopped. As a result, the illuminant 47E displays whether or not the ultraviolet source 120 has irradiated the ultraviolet UVX for sterilization, and whether or not the effect of sterilization by the ultraviolet UVX for sterilization from the ultraviolet source 120 is sustained.
  • the surface of the grid 140 is also a place contaminated by patient P and the like. Therefore, by providing the light emitter 47E on the grid 140, whether or not the ultraviolet UVX for sterilization is applied to the portion contaminated by the patient P or the like, and whether or not the portion contaminated by the patient P or the like is sterilized. It is possible to visually clarify whether or not the bactericidal effect of ultraviolet UVX is sustained.
  • the ultraviolet shielding member 75 that shields the ultraviolet rays that sensitize the illuminant of the second embodiment may be applied to the illuminants 47D and 47E.
  • a mechanism for peeling off the ultraviolet shielding member 75 when the electronic cassette 105 or the electronic cassette 105 with the grid 140 attached is housed in the holder 102, a mechanism for peeling off the ultraviolet shielding member 75 (when the ultraviolet shielding member 75 is a seal).
  • a mechanism for moving the ultraviolet shielding member 75 to the second position is provided so that the light emitters 47D and 47E are automatically exposed in the holder 102. It is also good.
  • the lid 101 may not be present, but it is preferable to have the lid 101 from the viewpoint of preventing humans from being irradiated with ultraviolet UVX for sterilization.
  • the location of the ultraviolet source 120 that irradiates the electronic cassette 105 and / or the grid 140 with ultraviolet UVX for sterilization is not limited to the holder 102 of the exemplary mobile radiation generator 90.
  • An ultraviolet source 120 may be provided in a holder of a charging cradle in which the electronic cassette 105 is detachably housed to charge the battery 132 of the electronic cassette 105.
  • the technique of the present disclosure is applied to the radiation diagnostic apparatus 150 shown in FIGS. 24 and 25 as an example.
  • the radiation diagnostic device 150 includes a radiation source 151, a control device 152, a standing position photographing table 153, and a lying position photographing table 154.
  • the radiation source 151 is also used in the standing position photographing table 153 and the lying position photographing table 154.
  • the standing position photographing table 153 and the lying position photographing table 154 are examples of "medical equipment" according to the technique of the present disclosure.
  • the radiation source 151 has a built-in radiation tube 155. Further, an irradiation field limiting device 156 is attached to the radiation source 151. Three ultraviolet sources 157A, 157B, and 157C are provided on the outer surface of the irradiation field limiting device 156.
  • the radiation source 151 is suspended from the ceiling of the radiography room by a support column 158.
  • the stanchion 158 is attached to a rail running around the ceiling via wheels.
  • the stanchions 158 and thus the radiation source 151 are horizontally movable in the radiography chamber by rails and wheels.
  • the support column 158 can be expanded and contracted in the height direction, whereby the radiation source 151 can be moved in the height direction.
  • the radiation source 151 is rotatable with respect to the support column 158 with an axis orthogonal to the paper surface as a rotation axis.
  • the standing shooting table 153 has a stand 160, a connection portion 161 and a standing holder 162 and the like.
  • the stand 160 is composed of a pedestal 163 installed on the floor of the radiography room and a support column 164 extending in the height direction from the pedestal 163.
  • the connection portion 161 connects the standing holder 162 to the stand 160.
  • the connection portion 161 and the standing holder 162 can be moved in the height direction with respect to the support column 164, and the height can be adjusted according to the height of the patient P or the imaging site.
  • the standing holder 162 has a box shape and houses the electronic cassette 165 inside.
  • the standing holder 162 is mostly made of a conductive material having electromagnetic wave shielding properties such as aluminum and stainless steel. Further, the standing holder 162 is formed of a material such as carbon that allows most of the surface 182 (see FIG. 26) facing the radiation source 151 to transmit radiation R.
  • the electronic cassette 165 is an example of the "radiography cassette" according to the technique of the present disclosure.
  • the recumbent position imaging table 154 has a pedestal 170 installed on the floor of the radiography room, a connection portion 171 and a top plate 172, a recumbent position holder 173, and the like.
  • the connecting portion 171 connects the top plate 172 to the pedestal 170.
  • the pedestal 170 is an elevating type, whereby the height of the top plate 172 and the recumbent holder 173 can be adjusted.
  • the top plate 172 has a rectangular plate shape having a length and a width that allows the patient P to lie on his / her back, and is formed of a material that transmits radiation R such as carbon.
  • the lying position holder 173 is arranged in the space between the pedestal 170 formed by the connecting portion 171 and the top plate 172.
  • the recumbent position holder 173 has a box shape whose upper part is covered with a top plate 172, and houses the electronic cassette 165 inside.
  • the recumbent position holder 173 is made of a conductive material having electromagnetic wave shielding properties such as aluminum and stainless steel.
  • the recumbent position holder 173 can be slid and moved in the direction along the long side direction of the top plate 172 by a slide mechanism (not shown).
  • FIG. 24 shows a case where the electronic cassette 165 is housed in the standing holder 162 of the standing shooting table 153 and radiography is performed using the standing shooting table 153.
  • the ultraviolet source 157A irradiates the surface 182 of the standing holder 162 facing the patient P for sterilization ultraviolet UVX.
  • the ultraviolet source 157B irradiates the top plate 172 of the recumbent position photographing table 154 with ultraviolet UVX for sterilization.
  • the ultraviolet source 157C does not irradiate the sterilizing ultraviolet UVX.
  • FIG. 25 shows a case where the electronic cassette 165 is housed in the lying position holder 173 of the lying position photographing table 154 and radiography is performed using the lying position photographing table 154.
  • the ultraviolet source 157A irradiates the top plate 172 of the recumbent position photographing table 154 with ultraviolet UVX for sterilization.
  • the ultraviolet source 157C irradiates the surface 182 of the standing holder 162 facing the patient P for sterilization ultraviolet UVX.
  • the ultraviolet source 157B does not irradiate the sterilizing ultraviolet UVX.
  • the control device 152 starts irradiation of ultraviolet UVX for sterilization by the ultraviolet sources 157A to 157C in response to the operator's lighting instruction. Further, the control device 152 stops the irradiation of the sterilizing ultraviolet UVX when the elapsed time from the start of the irradiation of the sterilizing ultraviolet UVX reaches the set time TS.
  • a standing tray 180 is set in the standing holder 162 so that it can be inserted and pulled out.
  • a rail for guiding the standing tray 180, a standing lock mechanism for locking the standing tray 180 in the inserted state, and the like are provided inside the standing holder 162.
  • FIG. 26 shows a state in which the standing lock mechanism is unlocked and the standing tray 180 is pulled out from the standing holder 162.
  • An electronic cassette 165 is detachably set on the standing tray 180.
  • the standing tray 180 is provided with a holding mechanism for sandwiching and holding the electronic cassette 165 in the vertical direction.
  • a handle 181 is provided on the side surface of the standing tray 180.
  • the handle 181 is gripped by the operator when the standing tray 180 is inserted into the standing holder 162 and when it is pulled out from the standing holder 162.
  • the standing tray 180 is unlocked by the standing lock mechanism.
  • the surface 182 of the standing holder 162 has a portion formed of a material that transmits radiation R such as carbon. This portion is the region IA to which the radiation R is irradiated. Outside the region IA to which the radiation R is irradiated, L-shaped light emitters 47F are provided at the four corners of the surface 182 along the shape of the corners.
  • the surface 182 is an example of "at least a portion of the outer peripheral surface" according to the technique of the present disclosure.
  • the illuminant 47F starts emitting light by irradiating the sterilizing ultraviolet UVX from the ultraviolet source 157A or 157C, and emits visible light that is dimmed after the irradiation of the sterilizing ultraviolet UVX is stopped. Thereby, the illuminant 47F displays whether or not the sterilizing ultraviolet UVX is irradiated from the ultraviolet source 157A or 157C, and whether or not the sterilizing effect of the sterilizing ultraviolet UVX from the ultraviolet source 157A or 157C is sustained. ..
  • the recumbent tray 185 is set in the recumbent holder 173 so that it can be inserted and pulled out.
  • a rail for guiding the recumbent tray 185 Inside the recumbent holder 173, a rail for guiding the recumbent tray 185, a recumbent lock mechanism for locking the recumbent tray 185 in the inserted state, and the like are provided.
  • FIG. 27 shows a state in which the recumbent lock mechanism is unlocked and the recumbent tray 185 is pulled out from the recumbent holder 173.
  • the electronic cassette 165 is detachably set on the lying position tray 185.
  • the recumbent tray 185 is provided with a holding mechanism for sandwiching and holding the electronic cassette 165 in the left-right direction.
  • a handle 186 is provided on the side surface of the recumbent tray 185.
  • the handle 186 is gripped by the operator when the recumbent tray 185 is inserted into the recumbent holder 173 and when it is pulled out from the recumbent holder 173.
  • the handle 186 is gripped in the inserted state, the recumbent tray 185 is unlocked by the recumbent lock mechanism.
  • the radiation R is applied to the region IA corresponding to the moving range of the electronic cassette 165 housed in the recumbent holder 173.
  • L-shaped light emitters 47G are provided along the shape of the corners.
  • the illuminant 47G is provided outside the region IA.
  • the surface 187 is an example of "at least a part of the outer peripheral surface” according to the technique of the present disclosure.
  • the illuminant 47G starts emitting light by irradiating the sterilizing ultraviolet UVX from the ultraviolet source 157A or 157B, and emits visible light that is dimmed after the irradiation of the sterilizing ultraviolet UVX is stopped. Thereby, the illuminant 47G displays whether or not the sterilizing ultraviolet UVX is irradiated from the ultraviolet source 157A or 157B, and whether or not the sterilizing effect of the sterilizing ultraviolet UVX from the ultraviolet source 157A or 157B is sustained. ..
  • the ultraviolet sources 157A to 157C are provided at locations where the standing position photographing table 153 and the lying position photographing table 154 can be irradiated with the ultraviolet UVX for sterilization. Therefore, the standing position photographing table 153 and the lying position photographing table 154 contaminated by the contact of the patient P can be sterilized. Further, by providing the luminous bodies 47F and 47G on the standing image pickup table 153 and the recumbent image pickup table 154, whether or not the portion contaminated by the patient P or the like was irradiated with the ultraviolet UVX for sterilization, and the patient P. It is possible to visually clarify whether or not the effect of sterilization by ultraviolet UVX for sterilization is sustained in a place contaminated by such as.
  • An ultraviolet shielding member 75 that shields ultraviolet rays that sensitize the illuminant of the second embodiment may be applied to the illuminants 47F and 47G.
  • the electronic cassette 165 is not detachably accommodated, and the detection panel is detachably accommodated like the imaging table 23 of the mammography apparatus 10. It may be a thing.
  • a CR (Computed Radiography) cassette may be used as the radiographing cassette.
  • An ultraviolet source is provided inside the standing holder 162 and / or the lying holder 173, and the ultraviolet UVX for sterilizing the radiographic cassette housed in the standing holder 162 and / or the lying holder 173. May be irradiated.
  • a light emitter 47 may be provided over the entire outer peripheral surface irradiated with ultraviolet UVX for sterilization. However, this naturally costs money. In addition, the patient P may feel uncomfortable when he / she sees the light emitted as a whole. Further, the light emission may be annoying and may hinder the positioning of the patient P or the like. Therefore, it is preferable to provide the light emitting body 47 on a part of the outer peripheral surface to which the ultraviolet UVX for sterilization is irradiated.
  • a selective ultraviolet shielding member may be provided to transmit ultraviolet UVX for sterilization, but to shield ultraviolet UVN such as ultraviolet contained in the illumination light from a fluorescent lamp. In this case, it is not necessary to provide the selective ultraviolet shielding member on the light emitting body 47 so as to be peelable, or to use the selective ultraviolet shielding member as a shutter.
  • the light emitter 47 may be coated with a selective ultraviolet shielding member.
  • a table showing the relationship between the degree of dimming of the light emitting body 47 and the degree of residual bactericidal effect may be attached in the vicinity of the light emitting body 47 in the form of a seal or the like. In this way, the operator can know the degree of residual bactericidal effect from the degree of dimming.
  • medical devices related to radiography such as a mammography apparatus 10, an electronic cassette 105, a standing position imaging table 153, and a lying position imaging table 154 are exemplified, but the technique of the present disclosure is not limited to this. It can be applied to all medical devices that are used repeatedly, such as the sleeper of MRI (Magnetic Response Imaging) equipment, the sleeper of PET (Positron Emission Tomography) equipment, the ultrasonic probe of ultrasonic diagnostic equipment, and the scope of endoscopic equipment. ..
  • MRI Magnetic Response Imaging
  • PET Pulsitron Emission Tomography
  • a and / or B is synonymous with "at least one of A and B". That is, “A and / or B” means that it may be A alone, B alone, or a combination of A and B. Further, in the present specification, when three or more matters are connected and expressed by "and / or", the same concept as “A and / or B" is applied.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022161280A (ja) * 2021-04-08 2022-10-21 キヤノンメディカルシステムズ株式会社 医用画像診断装置及び制御方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006017699A (ja) * 2004-06-03 2006-01-19 Nichiyu Giken Kogyo Co Ltd 放射線照射量履歴インジケータシート
JP2011115368A (ja) * 2009-12-03 2011-06-16 Konica Minolta Medical & Graphic Inc 放射線撮影装置
JP2014182002A (ja) * 2013-03-19 2014-09-29 Fujifilm Corp 放射線画像検出装置
US20140294142A1 (en) * 2013-03-28 2014-10-02 Samsung Electronics Co., Ltd. X-ray imaging device and method of controlling the same
JP2019048029A (ja) * 2017-06-27 2019-03-28 ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ 清浄性表示システム及び方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07313561A (ja) * 1994-05-30 1995-12-05 Toshiba Corp 医療機器
JPH09220277A (ja) * 1996-02-16 1997-08-26 Zexel Corp オゾン殺菌における殺菌完了の確認方法
US6475433B2 (en) * 2000-02-01 2002-11-05 Ebw Electronics, Inc. Method and apparatus for verifying ultraviolet sterilization
JP2003116970A (ja) * 2001-10-12 2003-04-22 Matsushita Electric Works Ltd 殺菌装置および無電極放電バルブ
US8114342B2 (en) * 2006-03-31 2012-02-14 The Invention Science Fund I, Llc Methods and systems for monitoring sterilization status
AU2015266867A1 (en) * 2014-05-28 2016-12-15 Purplesun Inc. Photochromic detection of ultraviolet irradiation
US10369243B2 (en) * 2015-12-07 2019-08-06 Diversey, Inc. Photochromic indicator and a method of documenting decontamination of an object using a photochromic indicator
KR20190064813A (ko) * 2017-12-01 2019-06-11 삼성메디슨 주식회사 초음파 프로브

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006017699A (ja) * 2004-06-03 2006-01-19 Nichiyu Giken Kogyo Co Ltd 放射線照射量履歴インジケータシート
JP2011115368A (ja) * 2009-12-03 2011-06-16 Konica Minolta Medical & Graphic Inc 放射線撮影装置
JP2014182002A (ja) * 2013-03-19 2014-09-29 Fujifilm Corp 放射線画像検出装置
US20140294142A1 (en) * 2013-03-28 2014-10-02 Samsung Electronics Co., Ltd. X-ray imaging device and method of controlling the same
JP2019048029A (ja) * 2017-06-27 2019-03-28 ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ 清浄性表示システム及び方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022161280A (ja) * 2021-04-08 2022-10-21 キヤノンメディカルシステムズ株式会社 医用画像診断装置及び制御方法
JP7665388B2 (ja) 2021-04-08 2025-04-21 キヤノンメディカルシステムズ株式会社 医用画像診断装置及び制御方法

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