JP2010051559A - Portable radiographic imaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable radiographic imaging apparatus easy to confirm displayed display content even when used in radiation photographing in a standing or lying state. <P>SOLUTION: The direction of a housing 70 is detected and a display direction is changed to a direction easy to confirm according to the detected direction of the housing 70 to perform control so as to display data on the display part 120 attached to the housing 70. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable radiographic image forming apparatus, and in particular, an image output for detecting radiation irradiated on a surface to be irradiated through a subject and outputting radiation image data representing a distribution of irradiation radiation dose. The present invention relates to a portable radiographic image forming apparatus including means.

  In recent years, a radiation sensitive layer has been arranged on a TFT (Thin Film Transistor) active matrix substrate, radiation such as irradiated X-rays is detected, converted directly into radiation image data representing the distribution of radiation dose, and output. An FPD (Flat Panel Detector) has been put into practical use, and a portable radiographic image forming apparatus (hereinafter also referred to as an electronic cassette) that incorporates the FPD and stores radiographic image data output from the FPD has been put into practical use. Yes. Since the electronic cassette is portable, the patient can be imaged while being placed on a stretcher or bed, and the position of the electronic cassette can be changed to easily adjust the imaging region. It can be handled flexibly.

  Recently, it has been proposed to add a display unit capable of confirming a captured radiation image on the spot to an electronic cassette. For example, Patent Document 1 discloses radiation detection having a detector that detects radiation transmitted through a patient. The structure which has arrange | positioned display apparatuses, such as a liquid crystal panel, in the back side of the cassette for use is disclosed.

Patent Document 2 discloses a display device having a display unit that is stored in a storage unit. The display device detects a pull-out amount of the display unit from the storage unit, and displays an image on the display unit according to the detected pull-out amount. A technique for determining a display form for display is disclosed.
JP 2000-262504 A JP 2005-215320 A

  By the way, since an electronic cassette has portability, it may be used in common by an imaging device that performs radiation imaging in a standing position or an imaging device that performs radiation imaging on a side.

  However, as in Patent Document 1 and Patent Document 2, a display unit for displaying information on the electronic cassette is provided, and information is displayed on the display unit in the same manner when used in a standing position or when lying down. In some cases, it may be difficult to confirm the displayed contents.

  The present invention has been made to solve the above-described problems, and even when used in standing-up radiation imaging or lying down radiation imaging, portable radiation image formation is easy to confirm the displayed display contents. An object is to provide an apparatus.

  In order to achieve the above object, a portable radiographic image forming apparatus according to the first aspect of the present invention detects the radiation that has passed through the subject and applied to the irradiated surface of the housing, and represents the distribution of the irradiation dose. Image output means for outputting radiographic image data, storage means for storing radiographic image data output from the image output means, display means attached to the casing, and orientation of the casing are detected Control is performed so that information is displayed on the display unit by changing the display direction to a direction that can be easily confirmed according to the direction of the case detected by the case direction detection unit and the case direction detection unit. Display control means.

  According to the first aspect of the present invention, the image output means detects radiation applied to the irradiated surface of the casing through the subject, and outputs radiation image data representing the distribution of the irradiated radiation amount. The storage unit stores the radiographic image data output from the image output unit.

  Further, according to the present invention, the orientation of the housing is detected by the housing orientation detection means, and the confirmation is easy according to the orientation of the housing detected by the housing orientation detection means by the display control means. The display direction is changed to the direction, and control is performed so that information is displayed by the display means attached to the housing.

  Thus, according to the first aspect of the present invention, the orientation of the housing is detected, and the display means attached to the housing is changed according to the detected orientation of the housing so that the display direction is changed to a direction that can be easily confirmed. Since the information is displayed by the above, it is easy to confirm the displayed display contents even when used for radiation imaging in a standing position or radiation imaging on the side.

  In addition, the display means of the invention described in claim 1 may be configured such that the display surface can be pulled out of the housing as described in claim 2.

  According to a second aspect of the present invention, the display control means according to the second aspect is such that the orientation of the casing detected by the casing orientation detection means is such that the angle of the display surface of the display means with respect to a horizontal plane is predetermined. When the direction is an angle or more, control may be performed so that information is displayed on the display surface of the display means with the vertical direction of the display surface being the vertical direction of the information.

  Further, the display control means of the invention according to claim 2 or claim 3 is such that the orientation of the housing detected by the housing orientation detection means is the display surface of the display means with respect to a horizontal plane as in claim 4. Information is displayed on the display surface of the display means with the direction of pulling out the display surface of the display means from the housing or the opposite direction as the vertical direction of the information. You may control as follows.

  Further, the invention according to claim 2 to claim 4 further includes a pull-out amount detection unit that detects a pull-out amount of the display surface to the outside of the housing, as in claim 5, wherein the display control unit includes: The content of the information displayed on the display surface of the display means may be switched according to the change in the withdrawal amount detected by the withdrawal amount detection means.

  According to a fifth aspect of the present invention, the display control means according to the fifth aspect provides the character information on the display surface of the display means when the withdrawal amount detected by the withdrawal amount detection means is less than a predetermined value. May be displayed, and when the extraction amount detected by the extraction amount detection unit is equal to or greater than a predetermined value, a radiographic image in which data is stored in the storage unit may be displayed on the display surface of the display unit.

  According to a sixth aspect of the present invention, as in the seventh aspect, the storage means stores radiation image data obtained in past imaging, and the display control means includes the radiation image. The past radiation image stored in the storage unit may be displayed on the display surface of the display unit.

  According to a seventh aspect of the present invention, as in the eighth aspect of the present invention, the apparatus further comprises a photographing detection means for detecting whether or not photographing has been performed, and the display control means performs photographing by the photographing detection means. In the meantime, the past radiographic image stored in the storage means is displayed on the display surface of the display means as the radiographic image, and the radiographing detection means has taken an image. May be displayed on the display surface of the display means as the radiographic image.

  In the first aspect of the present invention, the display means may be a projection device that projects and displays information to be displayed.

  Further, according to the present invention, at least one of attribute information representing the attribute of the subject and photographing condition information representing the photographing condition is stored in the storage unit, and the display control unit Of the attribute information and the photographing condition information, information stored in the storage means may be displayed as character information on the display surface of the display means.

  Further, according to the present invention, as described in claim 11, the back surface display means provided with a display surface on the surface opposite to the irradiated surface in the housing, and whether or not photographing has been performed is detected. And a vibration detecting means for detecting vibration applied to the housing, and the vibration detecting means after the display control means detects that the photographing is detected by the photographing detecting means. When it is detected that vibration is applied to the housing, the radiographic image obtained by the current imaging may be displayed on the display surface of the back surface display means.

  As described above, the present invention detects the orientation of the housing, changes the display direction to a direction that is easy to check according to the detected orientation of the housing, and displays information by the display means attached to the housing. Since it is displayed, it has an excellent effect that it is easy to confirm the displayed display contents even when it is used for radiation imaging in a standing position or radiation imaging on the side.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
1 shows a radiation information system 10 (hereinafter referred to as “RIS10” (RIS: (Radiology Information System)) according to the present embodiment, which is a medical appointment, a diagnostic record, etc. in a radiology department in a hospital. A plurality of terminal devices 12, a RIS server 14, and a radiographic imaging system 18 (console 26) installed in each radiographic room (or operating room) in a hospital. The RIS 10 is connected to an in-hospital network 16 comprising a wired or wireless LAN (Local Area Network), and the RIS 10 is a hospital information system (HIS) provided in the same hospital. A HIS server (not shown) for managing the entire HIS is also connected to the hospital network 16.

  Each terminal device 12 is constituted by a personal computer (PC) or the like, and is operated by a doctor or a radiographer. A doctor or a radiographer inputs / views diagnostic information and facility reservation via the terminal device 12, and a radiographic imaging request (imaging reservation) is also input via the terminal device 12. The RIS server 14 is a computer configured to include a storage unit 14A for storing an RIS database (DB). The RIS database includes patient attribute information (for example, patient name, sex, date of birth, age, Blood type, patient ID, etc.), medical history, consultation history, other information about the patient such as data of radiographic images taken in the past, information about the electronic cassette 22 (described later) of each radiographic imaging system 18 (for example, identification number) , Model, size, sensitivity, usable imaging part (contents of imaging request that can be supported), use start date, use frequency, etc.) are registered. The RIS server 14 manages the entire RIS 10 based on information registered in the RIS database (for example, accepts imaging requests from the terminal devices 12 and manages radiographic imaging schedules in the individual radiographic imaging systems 18). Process).

  The individual radiographic imaging system 18 is a system that performs radiographic imaging instructed by the RIS server 14 according to the operation of a doctor or radiographer, and generates a radiation generator 20 that generates radiation to be irradiated to a patient (subject). An electronic cassette 22 incorporating a radiation detector that detects radiation that has passed through the patient, converts it into radiation image data, and outputs it; a cradle 24 that charges a battery 116 (see FIG. 2) incorporated in the electronic cassette 22; Each console 26 is provided for controlling the operation of the device. As shown in FIG. 2, the radiographic imaging system 18 is provided with a wireless network 28, and the radiation generator 20, the electronic cassette 22, the cradle 24, and the console 26 constituting the same radiographic imaging system 18 are wirelessly connected. Various signals and information are transmitted and received by wireless communication via the network 28. The electronic cassette 22 corresponds to the portable radiographic image forming apparatus according to the present invention.

  The radiation generator 20 includes a radiation source 30 that includes a radiation tube and generates radiation by the radiation tube. The radiation source 30 is connected to a radiation source controller 32, and the radiation source controller 32 includes an exposure switch 34, A wireless communication unit 36 and a radiation source moving unit 38 are connected to each other. The exposure switch 34 is pressed by a photographer (radiologist) when performing radiography. In addition, a wireless antenna 40 is connected to the wireless communication unit 36, and the wireless communication unit 36 performs wireless communication with other devices constituting the same radiographic imaging system 18 via the wireless network 40 via the wireless network 28. Do.

  When performing radiation imaging, the radiation generation apparatus 20 receives imaging condition information representing imaging conditions for radiation imaging to be performed from the console 26, and the received imaging condition information is input from the wireless communication unit 36 to the radiation source control unit 32. Is done. The imaging condition information received from the console 26 includes information indicating the radiation tube driving conditions such as the tube voltage, tube current, and irradiation time of the radiation tube. The radiation source control unit 32 includes the exposure switch 34. When the pressing operation is performed, the radiation source 30 is controlled so that the radiation tube of the radiation source 30 is driven in accordance with the above driving conditions. As a result, the radiation source 30 generates and emits an appropriate dose of radiation according to the above driving conditions.

  As shown in FIG. 3, a radiation imaging room 42 in which the radiation source 30 is arranged has a rack 44 for holding the electronic cassette 22 when performing radiography in the standing position, and radiography in the prone position. A bed 46 is provided for the patient to lie down when performing the procedure. The space in front of the rack 44 is set as the imaging position 48 for the patient when performing radiography in the standing position, and the space above the bed 46 is in the lying position. It is set as the patient's imaging position 50 at the time of performing radiography. In the radiation imaging room 42, the radiation source 30 is arranged around a horizontal axis (in FIG. 3) in order to enable radiography in a standing position and in a lying position by radiation from a single radiation source 30. A support moving mechanism 52 is provided that can be rotated in the direction of arrow A), movable in the vertical direction (in the direction of arrow B in FIG. 3), and movably supported in the horizontal direction (in the direction of arrow C in FIG. 3). Yes.

  The radiation source moving unit 38 includes a drive source that rotates the radiation source 30 about a horizontal axis, a drive source that moves the radiation source 30 in the vertical direction, and a drive source that moves the radiation source 30 in the horizontal direction. (Both not shown). On the other hand, the photographing condition information received from the console 26 includes information indicating whether the posture at the time of photographing is standing or lying, and the radiation source control unit 32 performs the posture at the time of photographing designated by the received photographing condition information. Is standing position, the radiation source 30 is positioned so that the radiation source 30 is positioned at the position 54 for standing position imaging (position where the emitted radiation is irradiated from the side to the patient positioned at the imaging position 48). 38, and if the imaging posture specified by the received imaging condition information is supine, the radiation source 30 is placed on the supine imaging position 56 (the patient whose emitted radiation is located at the imaging position 50). The radiation source moving unit 38 is controlled so as to be positioned at a position irradiated from above.

  The electronic cassette 22 is moved / positioned by the radiologist to the position 58 held by the rack 44 when the posture at the time of photographing is standing, and moved to the position 60 on the bed 46 when the posture at the time of photographing is in the upright position.・ It is positioned. Details of the electronic cassette 22 will be described later.

  As shown in FIG. 2, the cradle 24 includes a cradle control unit 62 that controls the operation of the entire cradle 24, and a power supply unit 63 and a wireless communication unit 64 are connected to the cradle control unit 62. As shown in FIG. 3, the housing of the cradle 24 has a shape with a recess into which the electronic cassette 22 can be inserted, and the power supply unit 63 has the electronic cassette 22 inserted into the recess of the housing of the cradle 24. In this state, the battery 116 is charged by supplying power to the battery 116 of the electronic cassette 22. In addition, a wireless antenna 65 is connected to the wireless communication unit 64, and the wireless communication unit 64 performs wireless communication with other devices constituting the same radiation image capturing system 18 via the wireless network 28 via the wireless antenna 65. Do.

  In the present embodiment, as will be described later, a mode in which radiation image data generated by the electronic cassette 22 by performing radiography is directly transmitted from the electronic cassette 22 to the console 26 via the wireless network 28 will be described. However, the present invention is not limited to this, and the electronic cassette 22 and the cradle 24 have a function of performing communication using, for example, a laser beam in a state where the electronic cassette 22 is inserted into the recess of the housing of the cradle 24. In addition to providing each, the cradle 24 receives radiation image data from the electronic cassette 22 in the above state by the communication function described above, temporarily stores it in a memory or the like, and transmits the temporarily stored radiation image data to the console 26 at an appropriate timing. You may comprise as follows.

  In addition, the console 26 is configured by a PC or the like, and is provided with a system control unit 66 including a CPU 66A, a memory 66B including a ROM and a RAM, a nonvolatile storage unit 66C including an HDD (Hard Disk Drive), a flash memory, and the like. The system control unit 66 includes a display 67 composed of an LCD (Liquid Crystal Display), an input unit 68 composed of a keyboard, a mouse, etc., and a communication I / O that controls communication with the hospital network 16 (see FIG. 1). An F (interface) unit 69 and a wireless communication unit 59 are connected to each other. A wireless antenna 61 is connected to the wireless communication unit 59, and the wireless communication unit 59 performs wireless communication with other devices constituting the same radiation image capturing system 18 via the wireless network 61 via the wireless antenna 61.

  Next, the electronic cassette 22 according to the first embodiment will be described. As shown in FIG. 4, the electronic cassette 22 is a flat (flat box-shaped) casing made of a material that transmits radiation (in FIG. 4, the radiation is labeled with “X”). (Casing) 70 is covered with, and in the housing 70, the scattered radiation of radiation generated by passing through the subject in order from the irradiated surface 72 side to which the radiation is irradiated in the housing 70. A grid 74 to be removed, a radiation detector (radiation detection panel) 76 for detecting radiation, and a lead sheet 78 are disposed. The irradiated surface 72 of the housing 70 may be configured with a grid 74. In addition, a case 82 that accommodates various circuits to be described later is disposed on one end side inside the housing 70. In order to avoid various circuits housed in the case 82 from being damaged by the irradiation of radiation, it is desirable to arrange a lead sheet or the like on the irradiated surface 72 side of the case 82. The radiation detector 76 corresponds to an image output unit according to the present invention together with a signal processing unit 102 described later.

  Further, in the housing 70 of the electronic cassette 22 according to the first embodiment, a display unit 120 including a display device capable of displaying an image or the like on the back side of the lead sheet 78 when viewed from the irradiated surface 72 side. A storage space (hereinafter, this storage space is referred to as a storage portion 122 (see FIG. 5B)) is provided. As shown in FIGS. 5 and 6, the display unit 120 according to the first embodiment has a rectangular shape with a thickness as a whole, and the storage unit 122 has a shape and size that can store the entire display unit 120. ing. In the display unit 120, one of the two opposing surfaces in a rectangular shape is a display surface provided with a display area in which an image or the like can be displayed by a display device, and the irradiated surface 72 side faces upward. In the state where the housing 70 of the electronic cassette 22 is arranged as described above, the electronic cassette 22 is stored in the storage unit 122 with the display surface facing upward. In the first embodiment, since the shape of the display area provided on the display surface is rectangular, an LCD is suitable as the display device. However, a display device other than the LCD may be used.

  As shown in FIGS. 5 and 6, a handle portion for gripping the electronic cassette 22 (housing 70) when moving the electronic cassette 22 (housing 70) is provided on the side surface of the housing 70 of the electronic cassette 22 that is in contact with the irradiated surface 72. A flat rectangular opening 126 through which the display unit 120 can pass is provided on a specific side surface of the housing 70 to which the handle portion 124 is attached. The storage unit 122 communicates with the outside of the housing 70 through this opening, and the display unit 120 is inserted into the storage unit 122. The display unit 120 is moved out of the housing 70 by performing an unfolding operation in which the display unit 120 is slid (moved) in the direction in which the display unit 120 is pulled out from the storage unit 122 of the housing 70 (in the direction of arrow D in FIG. 6). Of these, the display surface expands to the side where the handle portion is provided, and the display portion 120 is exposed to the outside of the housing 70 (the state shown in FIG. 6C). Hereinafter, the position of the display unit 120 in this state is referred to as a displayable position. In addition, the storage unit 120 is slid and moved from the state where the display unit 120 is located at the displayable position to the direction in which the display unit 120 is inserted into the storage unit 122 of the housing 70 (the direction of arrow E in FIG. 6). As a result, the entire display unit 120 is stored in the storage unit 122 (the state shown in FIGS. 5A and 6A). Hereinafter, the position of the display unit 120 in this state is referred to as a storage position.

  In addition, a pair of grips are provided on the side surface of the display unit 120 that closes the opening 126 in a state where the entire display unit 120 is stored in the storage unit 122 (the state shown in FIGS. 5A and 6A). The display unit 120 is attached to the storage position or the displayable position described above when the above-described storage operation or deployment operation is performed by a photographer (radiologist) who holds the pair of grips 128. The slide is moved. In addition, in the vicinity of the end of the display unit 120 opposite to the side on which the grip unit 128 is attached, the sliding movement of the display unit 120 in the direction of pulling out from the storage unit 122 is limited to the displayable position (not shown). A stopper is installed. The stopper prevents the entire display unit 120 from being detached from the storage unit 122 (the display unit 120 is separated from the housing 70 of the electronic cassette 22). Thus, the display unit 120 is attached to the housing 70 so that the display surface can be stored.

  As shown in FIG. 5, a lead sheet 130 is affixed to the back surface of the display unit 120 (the surface opposite to the irradiated surface 72 side). The lead sheet 78 can reduce the backscattering of radiation and can also suppress radiation deterioration of the display unit 120 in a state of being stored in the storage unit 122. The lead sheet 130 is provided for the purpose of assisting in reducing absorption of backscattering of radiation by the lead sheet 78. As the lead sheet 78, for example, a lead sheet having a lead thickness of 0.5 mm or more, and as the lead sheet 130, for example, lead A lead sheet having a thickness of about 0.2 mm is suitable. The display unit 120 corresponds to the display unit according to the present invention.

  The radiation detector 76 of the electronic cassette 22 is configured by laminating a photoelectric conversion layer that absorbs radiation and converts it into charges on the TFT active matrix substrate 86 shown in FIG. The photoelectric conversion layer is made of amorphous a-Se (amorphous selenium) containing, for example, selenium as a main component (for example, a content rate of 50% or more), and when irradiated with radiation, the amount of charge corresponding to the amount of irradiated radiation. The generated radiation (electron-hole pair) is internally generated to convert the irradiated radiation into charges. Note that the radiation detector 76 is not limited to a configuration that directly converts radiation into electric charge using a radiation-charge conversion material such as amorphous selenium as described above, but includes gadolinium sulfate (GOS) and cesium iodide ( A configuration may be employed in which radiation is converted into charges indirectly by performing radiation-light conversion with a phosphor material such as CsI) and light-charge conversion with a photoelectric conversion element such as a photodiode.

  On the TFT active matrix substrate 86, a pixel portion 94 (in FIG. 2, individual TFTs 94) each having a storage capacitor 88 for storing the charge generated in the photoelectric conversion layer and a TFT 90 for reading out the charge stored in the storage capacitor 88. A large number of photoelectric conversion layers corresponding to the pixel portions 94 are schematically shown as photoelectric conversion portions 92), and are generated in the photoelectric conversion layers as the electronic cassette 22 is irradiated with radiation. The accumulated charges are stored in the storage capacitors 88 of the individual pixel portions 94. As a result, the image information carried on the radiation applied to the electronic cassette 22 is converted into charge information and held in the radiation detector 76.

  The TFT active matrix substrate 86 has a plurality of gate lines 96 extending in a certain direction (row direction) for turning on and off the TFTs 90 of the individual pixel portions 94, and a direction (column direction) orthogonal to the gate lines 96. A plurality of data wirings 98 are provided for reading out stored charges from the storage capacitor 88 via the TFT 90 which is extended and turned on. The individual gate lines 96 are connected to the gate line driver 100, and the individual data lines 98 are connected to the signal processing unit 102. When charges are stored in the storage capacitors 88 of the individual pixel portions 94, the TFTs 90 of the individual pixel portions 94 are sequentially turned on in units of rows by a signal supplied from the gate line driver 100 via the gate wiring 96. The charge stored in the storage capacitor 88 of the pixel section 94 for which is turned on is transmitted as a charge signal through the data wiring 98 and input to the signal processing section 102. Accordingly, the charges accumulated in the storage capacitors 88 of the individual pixel portions 94 are sequentially read out in units of rows.

  Although not shown, the signal processing unit 102 includes an amplifier and a sample-and-hold circuit provided for each data line 98, and the charge signal transmitted through each data line 98 is amplified by the amplifier. It is held in the sample hold circuit. In addition, a multiplexer and an A / D converter are connected in order to the output side of the sample and hold circuit, and the charge signals held in the individual sample and hold circuits are input to the multiplexer in order (serially) for A / D conversion. The digital image data is converted by the device. An image memory 104 is connected to the signal processing unit 102, and image data output from the A / D converter of the signal processing unit 102 is sequentially stored in the image memory 104. The image memory 104 has a storage capacity capable of storing image data for a plurality of frames, and image data obtained by imaging is sequentially stored in the image memory 104 each time a radiographic image is captured. The image memory 104 corresponds to the storage unit according to the present invention.

  A cassette control unit 106 is connected to the image memory 104. The cassette control unit 106 includes a microcomputer and the like, and includes a CPU 106A, a memory 106B including a ROM and a RAM, and a non-volatile storage unit 106C including an HDD, a flash memory, and the like, and an information display for performing an information display process described later. The program is stored in the storage unit 106C. Although not shown, the cassette control unit 106 is connected to the gate line driver 100 and the signal processing unit 102 described above, and charges are read from the individual pixel units 94 by the gate line driver 100 and the signal processing unit 102. To control. Further, a display unit 120, an input unit 108, a drawer sensor 110, a wireless communication unit 112, and a gravity sensor 111 are connected to the cassette control unit 106.

  The cassette control unit 106 displays information such as a radiation image represented by the image data stored in the image memory 104 on the display unit 120 by performing an information display process described later. Thus, the cassette control unit 106 corresponds to the display control means according to the present invention. In the present embodiment, the input unit 108 includes a touch panel provided on the display surface of the display unit 120. When the photographer operates the input unit 108 (touch panel), information corresponding to the operation is cassette controlled. Input to the unit 106. Further, the drawer sensor 110 is a sensor that detects the amount by which the display unit 120 is pulled out from the storage unit 122. In the present embodiment, a plurality of drawer sensors 110 are provided, for example, at equal intervals in a range in which the display unit 120 in the storage unit 122 slides, and a detection result by the drawer sensor 110 is input to the cassette control unit 106. The cassette control unit 106 detects the amount by which the display unit 120 is pulled out from the storage unit 122 based on the detection result by the drawer sensor 110. In addition, a wireless antenna 114 is connected to the wireless communication unit 112, and the wireless communication unit 112 performs wireless communication via the wireless network 114 with other devices constituting the same radiographic imaging system 18 via the wireless network 28. Do. The wireless communication with other devices by the wireless communication unit 112 may be optical wireless communication using infrared rays or the like instead of normal wireless communication using radio waves. The gravity sensor 111 is a sensor that detects the direction of gravity, and the detection result by the gravity sensor 111 is also input to the cassette control unit 106. The cassette control unit 106 detects the angle formed by the display unit 120 of the electronic cassette 22 with respect to the horizontal plane by detecting the orientation of the casing of the electronic cassette 22 based on the detection result by the gravity sensor 111.

  The electronic cassette 22 includes a battery 116, and the various circuits described above (the gate line driver 100, the signal processing unit 102, the image memory 104, the cassette control unit 106, the display unit 120, the input unit 108, and the wireless communication unit 112). Etc.) is operated by the electric power supplied from the battery 116. In the present embodiment, a secondary battery that is charged by power supplied from the power supply unit 63 of the cradle 24 is used as the battery 116, but the present invention is not limited to this, and a primary battery is used as the battery 116. Alternatively, a power supply unit that is always connected to a commercial power supply and that rectifies and transforms the power supplied from the commercial power supply to supply power to various circuits may be provided instead of the battery 116.

  Next, the operation of the first embodiment will be described. In the first embodiment, the electronic cassette 22 is moved and positioned to the position 58 or the position 60 in the radiation imaging room 42 according to the posture at the time of radiographic image capturing. The electronic cassette 22 according to the first embodiment is Since the display unit 120 can be stored in the storage unit 122 in the housing 70, when the electronic cassette 22 is moved / positioned to the position 58 or 60, or in another imaging room, operating room, or radiographic imaging device When the electronic cassette 22 is taken out from the radiation imaging room 42 for use in radiography in a vehicle equipped with a camera, the above-described storage operation is performed to store the display unit 120 in the storage unit 122 in the housing 70. Thus, it is possible to prevent the display unit 120 from obstructing the movement of the electronic cassette 22.

  In addition, the electronic cassette 22 according to the first embodiment performs an unfolding operation in which the display unit 120 is slid and moved in a direction in which the display unit 120 is pulled out from the storage unit 122 in the housing 70, so that the display surface of the display unit 120 is outside the housing 70. Therefore, the unfolding operation for unfolding the display surface to the outside of the housing 70 can be easily performed, and the handleability is also good. When the above-described unfolding operation is performed, the display surface of the display unit 120 is unfolded into a space outside the side surface of the housing 70 where the handle portion 124 is provided. Since the adjustment is performed by gripping the handle portion 124, the space is usually a space where no other object exists, and it is difficult to expand the display surface of the display unit 120 due to interference of the other object. Can be prevented.

  In addition, the drawer of the display unit 120 from the storage unit 122 is limited to a displayable position illustrated in FIG. 6C by a stopper (not illustrated), and the housing is provided so that the display unit 120 is not separated from the housing 70. 70. After the electronic cassette 22 is moved and positioned to a desired position, the display unit 120 is pulled out from the storage unit 122 to a displayable position by the above-described unfolding operation, and the display surface of the display unit 120 is moved to the housing. Even when deployed outside 70, the display unit 120 is supported by the housing 70 and is maintained in the positional relationship shown in FIG. 6C with respect to the housing 70. Therefore, a support mechanism or the like for supporting the display unit 120 is unnecessary, and it is possible to avoid the handling property and portability of the electronic cassette 22 from being lowered by providing the display unit 120. Further, when the patient as a subject is located at the position indicated by the broken line in FIG. 5 with respect to the housing 70 of the electronic cassette 22, the display surface of the display unit 120 is expanded outside the housing 70. Thus, it is possible to prevent the display surface of the display unit 120 from being in contact with the patient's body or the display surface of the display unit 120 from being hidden by the patient's body. The photographer can surely view information such as the displayed radiation image.

  Next, radiographic image capturing in the RIS 10 will be described. When a doctor or a radiographer requests imaging of a radiographic image via the terminal device 12, information for identifying a patient to be imaged (for example, a patient ID), information on an imaging region, an imaging posture, etc. 12 is input. In addition, when a patient tag in which a patient ID is recorded is carried (or attached) to an individual patient, input of information for specifying the patient is performed on the patient tag recorded in the patient tag carried by the patient to be photographed. The ID is formed by reading the ID by a reading device connected to the terminal device 12. The radiographic image capturing request made via the terminal device 12 is transmitted to the RIS server 14 together with each piece of information input to the terminal device 12, and is received by the RIS server 14.

  When receiving the radiographic image capturing request from the terminal device 12, the RIS server 14 refers to the radiographic image capturing schedule in each of the already registered radiographic image capturing systems 18, and captures the radiographic image related to the received imaging request. Is selected with which radiographic image capturing system 18 is performed, and the date and time when the selected radiographic image capturing system 18 captures the radiographic image is determined. Then, necessary information such as patient attribute information is read from the RIS database, and the read information and the determined imaging date and time are added to the information received from the terminal device 12 and transmitted to the console 26 of the selected radiographic imaging system 18. .

  Each time the console 26 receives the above information from the RIS server 14, the console 26 stores the received information in the storage unit 66C, and the information stored in the storage unit 66C in accordance with an instruction from the radiographer (radiologist) On the display 67 as the imaging schedule and specific imaging contents of each imaging (for example, the name of the patient who performs imaging, the imaging part, the posture at the time of imaging, the standard driving condition of the radiation tube uniquely determined from the imaging part, etc.) To do. Further, the console 26 transmits to the radiation generator 20 and the electronic cassette 22 imaging condition information representing imaging conditions in radiography to be performed from now on when radiographic images are captured. Thereby, the radiation source control unit 32 of the radiation generation apparatus 20 controls the radiation source moving unit 38 so that the radiation source 30 is located at a position corresponding to the posture at the time of photographing specified by the received photographing condition information.

  When radiographing is performed, the radiographer (radiologist) confirms the radiographing region, radiographing posture, radiation tube driving conditions, and the like on the console 26, and then, in the radiographic room 42, the radiographer responds to the radiographing posture. The electronic cassette 22 is moved and positioned to a position (position 58 or position 60), a patient to be imaged is positioned at a position (position 48 or position 50) according to the posture at the time of imaging, and the position of the radiation source 30 as necessary. Perform a series of preparations such as fine-tuning When the series of preparation work is completed, the exposure switch 34 is turned on.

  Thereby, the radiation source 30 generates and emits a dose of radiation according to the radiation tube driving conditions included in the imaging condition information received by the radiation generator 20 from the console 26, and the radiation emitted from the radiation source 30. Irradiates the irradiated surface 72 of the electronic cassette 22 through the patient. In the electronic cassette 22, after the radiation irradiated to each part in the irradiated surface 72 is converted and accumulated into charges by the radiation detector 76, the charges accumulated by the gate line driver 100 and the signal processing unit 102 are read out. Is converted into radiation image data and stored in the image memory 104.

  The radiographic image data stored in the image memory 104 is transmitted from the electronic cassette 22 to the console 26 via the wireless network 28 and stored in the storage unit 66 </ b> C of the console 26. The radiographic image data stored in the storage unit 66C is displayed on the display 67 for confirmation of the captured radiographic image, and is also transferred to the RIS server 14 and stored in the RIS database. As a result, the captured radiographic image is displayed on the display of the terminal device 12, and the doctor can perform radiogram image interpretation, diagnosis, and the like.

  By the way, in order to prevent the patient from accidentally capturing a radiographic image, it is preferable to confirm the name and the like with respect to the patient himself / herself who is capturing the radiographic image.

  Also, if the patient moves during radiographic imaging and the subject is blurred on the radiographic image, it is necessary to perform imaging again. Therefore, the photographer must check whether the subject is blurred on the radiographic image. It is necessary to confirm.

  Furthermore, when radiographs have been taken for the same part of the same patient in the past, the photographer refers to radiographs taken in the past in order to facilitate interpretation of radiographs by doctors. It is necessary to match the imaging range (positioning) in this imaging as much as possible with the radiographic images captured in the past. Further, for example, the initially designated posture at the time of imaging is standing, but the patient who has arrived at the radiation imaging room 42 is in a state where imaging in the standing position is a burden (for example, an injured leg). For this reason, it may be desirable to change the posture during shooting. Further, it may be necessary to change the driving conditions of the radiation tube.

  The console 26 can be used to confirm the name of the patient to be imaged, confirm the radiographic image captured, refer to the radiographic image captured in the past, and change the posture at the time of imaging and the driving conditions of the radiation tube. Although both of them are possible, the console 26 is generally installed outside the radiation imaging room 42 (for example, another room adjacent to the radiation imaging room 42). Each time imaging is performed, it is necessary to reciprocate between the radiation imaging room 42 and the installation location of the console 26, which causes a problem that it is very complicated and poor in work efficiency. There is also a problem in that the accuracy of adjustment of the imaging range is not sufficient because the imaging range (positioning) cannot be adjusted while referring to radiographic images taken in the past.

  For this purpose, the electronic cassette 22 according to the present embodiment is provided with a display unit 120 for confirming a patient to be imaged, confirming a captured radiographic image, referring to a radiographic image captured in the past, and a posture at the time of capturing. When the radiograph tube driving condition is changed or there is a possibility, the photographer holds the grip portion 128 and pulls out the display portion 120 from the housing 70 (the storage portion 122) of the electronic cassette 22 to display the image. An operation for expanding the display surface of the unit 120 to the outside of the housing 70 is performed. The cassette control unit 106 according to the present embodiment detects the pull-out amount that the display unit 120 has been pulled out, and information that is displayed on the display unit 120 of the electronic cassette 22 in accordance with a change in the pull-out amount by which the display unit 120 has been pulled out. When the pull-out amount pulled out by the display unit 120 is less than a predetermined amount, an image for confirming the patient to be imaged or changing the driving condition is displayed, and the pull-out amount by which the display unit 120 is pulled out When is larger than a predetermined amount, a radiographic image taken or a radiographic image taken in the past is displayed. In the present embodiment, the predetermined amount is, for example, a value that is ½ of the amount by which the display unit 120 is drawn to the displayable position. As a result, when the display unit 120 is pulled out to the state shown in FIG. 6B, the electronic cassette 22 according to the present embodiment displays an image for confirming the patient and changing the driving conditions. When the state shown in FIG. 6C is pulled out, a captured radiographic image or a radiographic image captured in the past is displayed.

  In the electronic cassette 22 according to the present embodiment, when the drawer sensor 110 detects that the display unit 120 has been pulled out, the cassette controller 106 of the electronic cassette 22 performs the information display process shown in FIG. Done.

  In this information display processing, first, in step 300, it is determined whether or not the amount of drawing out of the display unit 120 is less than the predetermined amount. If the determination is negative, the process proceeds to step 302. If the determination is negative, the process proceeds to step 304.

  In step 302, the latest various information to be displayed on the display unit 120 among the imaging condition information (for example, the patient ID and name of the patient to be imaged, the imaging region, the imaging posture, the tube voltage of the radiation tube, the tube current, etc .: The information requesting transmission of the RIS information is transmitted to the console 26 via the wireless communication unit 112, thereby requesting the console 26 to transmit the RIS information.

  On the other hand, in step 304, information for requesting data of related radiographic images taken in the past is generated, and the generated information is transmitted to the console 26, so that the current imaging, the patient and the imaging site are captured in the past. The console 26 is requested to transfer the same radiation image data.

  In the next step 306, it is determined whether or not any information has been received from another device. When determination is denied, it transfers to step 308 and it is determined whether some information was input via the input part 108 which consists of a touch panel. If this determination is negative, the routine proceeds to step 310, where it is determined whether or not the amount of drawer of the display unit 120 has changed. If this determination is negative, the process returns to step 306, and steps 306 to 310 are repeated until any determination is affirmed. On the other hand, if the determination in step 310 is affirmed, the process proceeds to step 312 to determine whether or not the drawer sensor 110 has detected that the display unit 120 is stored in the storage unit 122. If this determination is negative, the process returns to step 300.

  When the console 26 receives from the electronic cassette 22 information requesting transmission of the RIS information requested in the above step 302, it reads out information related to imaging to be performed from the storage unit 66C, edits the read information as RIS information, It transmits to the electronic cassette 22 via the wireless communication unit 59.

  In addition, when the console 26 receives information from the electronic cassette 22 that requests data of related radiographic images taken in the past requested in step 304, the console 26 performs imaging based on the information stored in the storage unit 66C. By transmitting information indicating the patient ID and imaging region of the patient to the RIS server 14, the RIS server 14 is requested to receive data of related radiographic images captured in the past, and the RIS server 14 uses the information received from the console 26. The RIS database is searched using the patient ID and the imaging region shown as keys. If the corresponding radiographic image data is stored in the RIS database, the RIS server 14 reads out the corresponding radiographic image data from the RIS database and transmits it to the console 26 of the request source. When the console 26 receives the radiation image data requested from the electronic cassette 22 from the RIS server 14, the console 26 transmits the received radiation image data to the requesting electronic cassette 22.

  When the RIS information and the radiographic image data are received by the wireless communication unit 112 of the electronic cassette 22 and input to the cassette control unit 106, the determination in step 306 is affirmed and the process proceeds to step 314. In step 314, the received information Branches according to the type. If the received information is RIS information received from the console 26, the process proceeds from step 314 to step 316, and if the received information is radiation image data received from the console 26, the process proceeds from step 314 to step 320.

  In the next step 316, the RIS information received from the console 26 is stored in the memory 106B. In step 318, the RIS information received from the console 26 is displayed on the display surface of the display unit 120 as an RIS information display / correction screen. This RIS information display / correction screen displays the contents of the received RIS information (patient ID and name of the patient, imaging location, imaging posture, radiation tube voltage, tube current, etc.) and some items ( For example, the shooting posture, the tube voltage of the radiation tube, the tube current, etc.) can be entered by the photographer (radiography engineer) and a correction instruction can be input. This screen is displayed on the display surface of the display unit 120. Thus, it is possible to grasp the contents of radiographic image capturing to be performed.

  At this time, the cassette control unit 106 determines that the orientation of the housing 70 detected by the gravity sensor 111 is such that the angle of the display surface of the display unit 120 with respect to the horizontal plane is a predetermined angle (for example, 30 °) or more. The display unit 120 is controlled so that information is displayed on the display surface of the display unit 120 with the vertical direction of the display unit 120 being the vertical direction of the information, and the detected orientation of the housing 70 is the angle of the display surface of the display unit 120 with respect to the horizontal plane. If the orientation is less than the predetermined angle, control is performed so that information is displayed on the display surface of the display unit 120 with the direction of pulling out the display unit 120 from the housing 70 as the vertical direction of the information.

  As a result, when the electronic cassette 22 is positioned in the rack 44 in the vertical direction so as to perform radiation imaging in a standing position, the vertical direction of the display unit 120 is the vertical direction of the information as shown in FIG. When the RIS information display / correction screen is displayed on the display unit 120 as the direction, and the electronic cassette 22 is positioned on the bed 46 while lying in the horizontal direction in order to perform radiation imaging in the prone position, FIG. As shown in FIG. 4, the RIS information display / correction screen is displayed on the display unit 120 with the direction of the display unit 120 being pulled out from the housing 70 being the vertical direction of the information. 8A and 8B, the plane along the XY axis indicates the horizontal plane, and the Z axis indicates the vertical direction.

  As described above, the information is displayed on the display unit 120 of the electronic cassette 22 by changing the display direction to the direction in which the confirmation is easy according to the orientation of the casing 70 detected by the gravity sensor 111. It becomes easy. Since the patient ID and name are displayed on the above screen, for example, by confirming the name against the patient himself / herself and comparing the confirmed name with the name displayed on the screen, there is a difference in the patient performing imaging. Whether or not there is any can be reliably confirmed in the radiation imaging room 42. In the above screen, the shooting posture, radiation tube voltage, tube current, etc. are displayed so that the photographer can input correction instructions. The photographer must check the contents of these items and make corrections. If it is determined that the radiographing room 42 and the installation location of the console 26 are reciprocated by inputting a correction instruction via the input unit 108 formed of a touch panel, the posture during imaging and the tube voltage of the radiation tube It becomes possible to change the tube current and the like. If the process of step 318 is performed, it will return to step 306 and will repeat step 306-step 310.

  On the other hand, in step 320, the radiographic image data received from the console 26 is stored in the memory 106B. In step 322, based on the data received from the console 26, the radiographic image represented by the data (the radiographic image captured in the past with the same imaging and the same patient and imaging site) is displayed on the display unit 120. Return to 306.

  At this time, the cassette control unit 106 determines that the orientation of the housing 70 detected by the gravity sensor 111 is such that the angle of the display surface of the display unit 120 with respect to the horizontal plane is equal to or greater than the predetermined angle, as in step 318. The display unit 120 is controlled so that information is displayed on the display surface of the display unit 120 with the vertical direction of the display unit 120 being the vertical direction of the information, and the detected orientation of the housing 70 is the level of the display unit 120 with respect to the horizontal plane. When the angle of the display surface is less than the predetermined angle, control is performed so that information is displayed on the display surface of the display unit 120 with the pulling direction of the display unit 120 from the housing 70 as the vertical direction of the information. .

  As a result, when the electronic cassette 22 is positioned in the rack 44 in the vertical direction in order to perform radiation imaging in a standing position, the vertical direction of the display unit 120 is the vertical direction of the information as shown in FIG. When the radiographic image is displayed on the display unit 120 as the direction and the electronic cassette 22 is positioned on the bed 46 while lying in the horizontal direction in order to perform radiography in the lying position, as shown in FIG. A radiation image is displayed on the display unit 120 with the pulling direction of the display unit 120 from the housing 70 as the vertical direction of information. 9A and 9B, the plane along the XY axis indicates the horizontal plane, and the Z axis indicates the vertical direction.

  As described above, the information is displayed on the display unit 120 of the electronic cassette 22 by changing the display direction to the direction in which the confirmation is easy according to the orientation of the casing 70 detected by the gravity sensor 111. It becomes easy.

  By referring to the radiographic image displayed on the display unit 120, the photographer can grasp the imaging range when the same imaging region of the same patient was imaged in the past, and the captured imaging range should be as much as possible. It is possible to adjust the imaging range in the current imaging so as to coincide with each other without reciprocating between the radiation imaging room 42 and the installation location of the console 26. In addition, the radiographic image taken in the past can be adjusted more accurately than in the case where radiographic images taken in the past are displayed on the display 67 of the console 26 installed outside the radiographic room 42. it can.

  When there is no radiographic image related to the current radiographing that has been taken in the past, the corresponding radiographic image data is not transmitted from the RIS server 14 to the console 26, and the radiographic image data is also sent from the console 26 to the electronic cassette 22. Is not transmitted, the processing of steps 320 and 322 is not performed, and the radiographic image captured in the past and related to the current imaging is not displayed.

  In addition, while the RIS information display / correction screen is displayed on the display unit 120, the input unit 108 including a touch panel is operated by the photographer, and the photographing conditions such as the posture at the time of photographing, the tube voltage of the radiation tube, and the tube current are set. If the information for instructing correction is input, the determination in step 308 is affirmed and the process proceeds to step 340, where it is determined whether the input information is information for instructing correction of the photographing condition. In this case, the determination is affirmed, the process proceeds to step 342, and the content of the item instructed to be corrected by the input information among the RIS information stored in the memory 106B is corrected according to the instruction. In the next step 344, the corrected RIS information is transmitted to the console 26. In the next step 346, it is determined whether or not the confirmation of the radiation image has been completed. In this case, the determination is negative, the process returns to step 306, and steps 306 to 310 are repeated again.

  When the RIS information corrected by the photographer's instruction is received from the electronic cassette 22, the console 26 edits the RIS information received from the electronic cassette 22 into the imaging condition information and transmits the imaging condition information to the radiation generation apparatus 20, and the storage unit 66C. The information corresponding to the received RIS information is corrected based on the received RIS information. Thus, if the item corrected by the photographer's instruction is an item related to the radiation tube driving conditions such as the tube voltage and the tube current, the driving conditions according to the contents after the correction when the radiation from the radiation source 30 is emitted. When the radiation tube is driven and the item corrected by the photographer's instruction is the posture at the time of photographing, the radiation source moving unit 38 causes the radiation source 30 to move to a position corresponding to the posture at the time of photographing after correction. The movement of the radiation source 30 is controlled by the radiation source control unit 32. By the above processing, the photographer can correct the photographing conditions in the current photographing without reciprocating between the radiation photographing room 42 and the installation location of the console 26.

  Further, when the exposure switch 34 is pressed by the photographer, an input of an exposure instruction is notified from the radiation generator 20 to the electronic cassette 22. When an exposure instruction is input, the cassette control unit 106 of the electronic cassette 22 detects that imaging is performed, the determination in step 306 is affirmed, the process proceeds to step 314, and the received information is received from the radiation generator 20. If it is an input notification of the received exposure instruction, the process branches from step 314 to step 324. Note that the processing in step 314 corresponds to the photographing detection means according to the present invention. When the exposure switch 34 is pressed, the radiation generator 20 emits radiation from the radiation source 30, and the radiation emitted from the radiation source 30 passes through the patient (subject) and is applied to the electronic cassette 22. In step 324, at the timing when the emission of radiation from the radiation source 30 is finished, the electric charge accumulated in the radiation detector 76 is read out, converted into radiation image data, and stored in the image memory 104. The RIS information received from the console 26 also includes information (for example, the number of simultaneous readout lines) that defines the readout conditions in the charge readout from the radiation detector 76. The charge readout from the radiation detector 76 is the above information. Is performed in accordance with the reading conditions specified by.

  In the next step 326, the display unit 120 displays the radiation image (radiation image obtained by the current imaging) represented by the image data stored in the image memory 104 in step 324. As a result, the photographer can confirm whether or not the photographing range in the current photographing is appropriate and whether or not the subject is blurred on the radiation image by referring to the radiation image displayed on the display unit 120. it can. In addition, it is not restricted to displaying the radiographic image in which the data was stored in the image memory 104 on the display unit 120 as it is. Or various correction processes for correcting pixel-to-pixel variations in image data caused by variations in the characteristics of the pixel portions 94 of the radiation detector 76), and then displaying the image data on the display unit 120. Good.

  In the next step 328, the image data of the radiographic image obtained by the current imaging is transmitted to the console 26. The image data transmitted to the console 26 is stored in the storage unit 66C of the console 26, displayed on the display 67 for confirmation of the radiographic image, etc., transferred to the RIS server 14, and stored in the RIS database. It is used for radiogram image interpretation and diagnosis through the device 12. When the process of step 328 is completed, the process returns to step 306, and steps 306 to 310 are repeated again.

  When the confirmation of the radiographic image displayed on the display unit 120 is completed, the radiographer operates the input unit 108 formed of a touch panel and inputs information indicating the end of the radiographic image confirmation. In this case, the determination in step 308 is affirmed, the determination in step 340 is denied, and the determination in step 346 is affirmed, and the process proceeds to step 348 to transmit information corresponding to the next imaging to be performed to the console 26. Request and return to step 306. Then, by receiving information corresponding to the next photographing from the console 26 according to this request, the above-described sequence is repeated again.

  In addition, when the electronic cassette 22 is moved or when all the radiographic images scheduled for the day are completed, the photographer holds the grip portion 128 and presses the display portion 120 to enclose the housing of the electronic cassette 22. 70 (the storage unit 122) is stored. When this operation is performed, it is detected by the drawer sensor 110 that the display unit 120 is housed, and the determination of step 310 and step 312 is affirmed, whereby the information display process described above is terminated.

  In the first embodiment, the mode in which the display unit 120 is slid by moving the display unit 120 in the storage unit 122 has been described. However, the present invention is not limited to this. Between the both ends of the display unit 120 and the inner wall of the storage unit 122 along the direction orthogonal to the direction of 120 slide movement, a rail or the like that reduces the frictional force against the slide movement may be provided. In this case, the display unit 120 can be slid with a smaller force.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In addition, below, the same code | symbol is attached | subjected to the part same as 1st Embodiment, description is abbreviate | omitted, and only a different part from 1st Embodiment is demonstrated.

  FIG. 10 shows (a part of) an electronic cassette 22 according to the second embodiment. Similar to the display unit 120 described in the first embodiment, the electronic cassette 22 according to the second embodiment is provided with a rectangular display unit 134 having a thickness as a whole, and the housing of the electronic cassette 22 is provided. The storage part 122 provided in the interior 70 is shaped and sized to accommodate the entire display part 134, and the opening 126 provided on the side surface of the housing 70 is shaped and sized to allow the display part 134 to pass through. . Further, the handle portion 124 is attached to the side surface of the display portion 134 that closes the opening 126 in a state where the entire display portion 134 is stored in the storage portion 122 (the state shown in FIG. 10A). The handle portion 124 is gripped when the electronic cassette 22 (housing 70) is moved, and is also gripped when the display portion 134 is slid.

  In addition, the display unit 134 is pivoted about an axis orthogonal to the insertion direction at the distal end side when inserted into the storage unit 122 and along the direction orthogonal to the insertion direction into the storage unit 122. It is supported by the bracket 136 (see FIGS. 10C and 10D). The bracket 136 is slid and moved in the storage unit 122 integrally with the display unit 134 in accordance with the unfolding operation and the storage operation described in the first embodiment. A stopper (not shown) for restricting the sliding movement of the display unit 134 and the bracket 136 to the position (displayable position) shown in FIGS. 10 (C) and 10 (D) is attached. The stopper prevents the entire display unit 134 from being detached from the storage unit 122 (the display unit 134 is separated from the housing 70 of the electronic cassette 22). In this manner, the display unit 134 is attached to the housing 70 so that the display surface can be stored.

  The display unit 134 is stored in the storage unit 122 with the display surface facing downward while the housing 70 of the electronic cassette 22 is disposed so that the irradiated surface 72 side faces upward. Between the bracket 134 and the bracket 136, there is interposed a biasing means (not shown) which is made of a coil spring or the like and rotates the display portion 134 around the axis (in the direction of arrow F in FIG. 10). As a result, the display unit 134 is slid in the direction in which the display unit 134 is pulled out from the storage unit 122 of the housing 70 (in the direction of arrow D in FIG. 10), similarly to a so-called in-dash type display that can store the display in the dashboard in the in-vehicle navigation device. When an unfolding operation for moving (sliding) is performed and the display unit 134 is pulled out from the storage unit 122 to the displayable position shown in FIG. 10C, the display unit 134 is moved to FIG. 10D is rotated in the direction of arrow F in FIG. 10 until the position shown in FIG. 10D (the display surface is approximately along the direction orthogonal to the irradiated surface 72), and the display surface can be easily seen from the side of the electronic cassette 22. Expanded state.

  Further, in this state, the handle portion 124 is gripped, and the display portion 134 is rotated in the reverse direction (the direction opposite to the arrow F direction in FIG. 10) until the display surface of the display portion 134 faces downward. Thereafter, the display unit 134 is stored in the storage unit 122 by performing a storage operation of sliding the display unit 134 in the direction of insertion into the storage unit 122 (arrow E in FIG. 10). Although not shown, in the second embodiment, the lead sheet 130 is placed on the bottom surface of the storage unit 122 (the surface facing the display surface of the display unit 134 when the display unit 134 is stored in the storage unit 122). It is affixed. Also in the second embodiment, since the shape of the display area provided on the display surface is rectangular, an LCD is suitable as the display device, but a display device other than the LCD may be used. . The display unit 134 corresponds to the display unit according to the present invention.

  The cassette control unit 106 detects the angle formed by the display unit 134 with respect to the horizontal plane by detecting the orientation of the housing 70 of the electronic cassette 22 based on the detection result by the gravity sensor 111, but the display unit 134 is pulled out to a displayable position. If it is, it will rotate. For this reason, the electronic cassette 22 according to the present embodiment detects the amount by which the display unit 134 has been pulled out from the storage unit 122 based on the detection result by the drawer sensor 110, and the drawer sensor 110 can display the display unit 134 at a displayable position. 10D, it is assumed that the display surface is orthogonal to the irradiated surface 72 as shown in FIG. to decide. Note that the gravity sensor 111 may be provided in the peripheral region of the display surface of the display unit 134 to detect the angle of the display surface of the display unit 134.

  The display unit 134 is pulled out to a displayable position, and the display surface is rotated to a position approximately along the direction orthogonal to the irradiated surface 72 for use. For this reason, as in the first embodiment, it is not preferable in use to switch the display of the RIS information display / correction screen and the radiographic image with the amount of drawing out of the display unit 134. For this reason, in the present embodiment, switching between the RIS information display / correction screen and the display of the radiation image is performed by a predetermined switching operation to the input unit 108 including a touch panel.

  Also in the display of the RIS information display / correction screen and the display of the radiation image on the display unit 134, the cassette control unit 106 displays the display unit 134 with respect to the horizontal plane based on the orientation of the housing 70 detected by the gravity sensor 111. When the angle of the surface is obtained and the angle of the display surface of the display unit 134 with respect to the horizontal plane is equal to or greater than the predetermined angle, information is displayed on the display surface of the display unit 134 with the vertical direction of the display unit 134 being the vertical direction of the information. When the direction of the detected casing 70 is controlled so that the angle of the display surface of the display unit 134 with respect to the horizontal plane is less than the predetermined angle, the display unit 134 is separated from the casing 70. Control is performed so that information is displayed on the display surface of the display unit 134 with the pull-out direction as the vertical direction of the information.

  As described above, the information is displayed on the display unit 134 of the electronic cassette 22 by changing the display direction to the direction in which the confirmation is easy according to the orientation of the casing 70 detected by the gravity sensor 111, so that the confirmation of the information is possible. It becomes easy.

[Third Embodiment]
Next, a third embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment and 2nd Embodiment, and description is abbreviate | omitted.

  FIG. 11 shows (a part of) an electronic cassette 22 according to the third embodiment. The electronic cassette 22 according to the third embodiment is provided with an arc-shaped display unit 140 having a thickness, and the storage unit 122 provided in the housing 70 of the electronic cassette 22 stores the entire display unit 140. The opening 126 provided on the side surface of the housing 70 is sized to allow the display unit 140 to pass. In addition, in the state where the entire display unit 140 is stored in the storage unit 122 (the state shown in FIG. 11A), one end of the display unit 140 along the longitudinal direction of the opening 126 is an irradiated surface. 72 is supported by the housing 70 so as to be rotatable about an axis along a direction orthogonal to the direction 72. Further, in the state shown in FIG. 11A, a single grip is provided near the end on the side opposite to the end supported by the housing 70 on the side surface of the display unit 140 that closes the opening 126. Part 142 is attached.

  Further, the display unit 140 is provided with a stopper (not shown) that restricts the rotation (rotation slide) of the display unit 140 in the pulling direction from the storage unit 122 to the position (displayable position) shown in FIG. ing. As a result, the display unit 140 is gripped by the gripping part 142 and is subjected to an unfolding operation in which the display part 140 is rotated and slid in the direction in which the display part 140 is pulled out of the housing part 122 of the housing 70 (the direction of arrow G in FIG. The display surface expands to the side of the outside of the housing 70 where the handle portion is provided, and most of the display portion 140 is exposed to the outside of the housing 70 (displayable as shown in FIG. 11C). Position). Further, the display unit 140 is rotated in the direction in which the display unit 140 is inserted into the storage unit 122 of the housing 70 (the direction indicated by the arrow H in FIG. 11) while the grip unit 142 is gripped in a state where the display unit 140 is located at the displayable position. By performing the storage operation of sliding, the entire display unit 140 is stored in the storage unit 122 (positioned at the storage position shown in FIG. 11A). Thus, the display unit 140 is attached to the housing 70 so that the display surface can be stored.

  Further, in the third embodiment, the lead sheet 130 may be affixed to the back surface of the display unit 140 or may be affixed to the bottom surface of the storage unit 122, but the display unit 140 according to the third embodiment is When the lead sheet 130 is affixed to the back surface of the display unit 140, the lead sheet 130 is partially disposed (only in the arc-shaped region) when viewed from the irradiated surface 72 side. . The same applies to the case where the bottom surface of the storage unit 122 is arcuate following the display unit 140. For this reason, the bottom surface of the storage unit 122 has a rectangular shape similar to that of the first embodiment or the second embodiment, and the lead sheet 130 is attached to the entire bottom surface of the storage unit 122 or the back surface of the display unit 140 is lead. When the sheet 130 is affixed, it is desirable that the lead sheet is also affixed to the area of the bottom surface of the storage part 122 excluding the arc-shaped area corresponding to the display part 140. The lead sheet 130 is not essential because it is provided for the purpose of assisting in reducing absorption of radiation backscattering by the lead sheet 78, and the lead sheet 130 can be omitted.

  Further, as shown in FIG. 11 (particularly FIG. 11C), in the third embodiment, the shape of the display area on the display surface of the display unit 140 is an arc shape like the display unit 140, but the display area is Since the display device having such a shape is special, the shape of the display region may be rectangular. As a result, the display unit 140 can be configured using a general and inexpensive display device. The display unit 140 corresponds to the display unit according to the present invention.

  As in the first embodiment, the cassette control unit 106 switches the RIS information display / correction screen and the radiation image to the display unit 140 according to the pull-out amount by which the display unit 140 is pulled out.

  Further, also in the display of the RIS information display / correction screen and the display of the radiation image on the display unit 140, the cassette control unit 106 determines that the orientation of the housing 70 detected by the gravity sensor 111 is that of the display unit 140 with respect to the horizontal plane. If the angle of the display surface is greater than or equal to the predetermined angle, control is performed so that information is displayed on the display surface of the display unit 140 with the vertical direction of the display unit 140 being the vertical direction of the information. When the orientation of the body 70 is an orientation in which the angle of the display surface of the display unit 140 with respect to the horizontal plane is less than the predetermined angle, the direction in which the display unit 140 is pulled out from the housing 70 is the vertical direction of the information. Control to display information on the display surface.

  As described above, the information is displayed on the display unit 140 of the electronic cassette 22 by changing the display direction to a direction in which the confirmation is easy according to the orientation of the housing 70 detected by the gravity sensor 111. It becomes easy.

[Fourth Embodiment]
Next, a fourth embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment-3rd Embodiment, and description is abbreviate | omitted.

  FIG. 12 shows (a part of) an electronic cassette 22 according to the fourth embodiment. As shown in FIGS. 12B and 12C, the electronic cassette 22 according to the fourth embodiment is provided with a long sheet-like display unit 146 having flexibility. Note that the display unit 146 is preferably electronic paper. One end of the display unit 146 in the longitudinal direction is attached to the take-up shaft 148, and the entire amount of the display unit 146 is located on one end of the housing 70 of the electronic cassette 22 where the handle 124 is attached. A storage space (storage unit 150) in which the display unit 146 and the winding shaft 148 can be stored in a state of being wound around the winding shaft 148 is provided. The take-up shaft 148 is disposed in the storage unit 150 and is rotatably supported by the housing 70. Although not shown, the storage unit 150 has a rotation mechanism that rotates the winding shaft 148 in the direction of winding the display unit 146 by the biasing force of the biasing means, and the entire amount of the display unit 146 from the winding shaft 148. When the take-up shaft 148 is pulled out, the rotation of the take-up shaft 148 is prevented. When the take-up shaft 148 is further pulled from this state via the display unit 146, the state of preventing the take-up shaft 148 from rotating is released. A latch mechanism is provided.

  A protective member 152 having a rectangular cross section and a long cross section is attached to the end of the display portion 146 opposite to the side attached to the take-up shaft 148. , Gripping portions 154 are attached to two places on the side surface. The protective member 152 has a tension applied to the gripping part 154 when the gripping part 154 is gripped and the gripping part 154 is pulled in a direction in which the display part 146 is pulled out from the winding shaft 148 against the rotational force of the rotation mechanism. The display unit 146 has a function of preventing damage to the display unit 146 by uniformly transmitting the force to the display unit 146. In addition, an opening 126 is provided on a side surface of the housing 70 of the electronic cassette 22 to which the handle portion 124 is attached, and a portion corresponding to the opening 126 in the storage portion 150 is caused by the rotational force of the rotation mechanism. A stopper (not shown) is provided to prevent the protective member 152 from further entering the storage portion 150 from the position shown in FIG.

  In the display unit 146 according to the fourth embodiment, the grip unit 154 is gripped, and the display unit 146 is pulled out from the storage unit 150 of the housing 70 against the rotational force of the rotation mechanism (the arrow D in FIG. 12). The display unit 146 is pulled out from the take-up shaft 148 and the rotation of the take-up shaft 148 by the rotation mechanism is blocked by the latch mechanism. The display surface is expanded to the side of the outside where the handle portion is provided, and the display portion 146 is exposed to the outside of the housing 70 (the state shown in FIG. 12C). Further, when the storing operation for further pulling the winding shaft 148 is performed via the grip portion 154, the protective member 152, and the display portion 146 from this state, the rotation blocking state of the winding shaft 148 by the latch mechanism is released, and the display portion When the winding shaft 148 is rotated by the rotation mechanism in the winding direction of 146, the display unit 146 is wound around the winding shaft 148 and stored in the storage unit 150 (see FIG. 12A). It becomes. Thus, the display unit 146 according to the fourth embodiment is also attached to the housing 70 so that the display surface can be stored. The display unit 146 corresponds to the display unit according to the present invention.

  Since the display unit 146 has flexibility, the orientation of the housing 70 of the electronic cassette 22 and the orientation of the display unit 146 do not necessarily match. However, in the electronic cassette 22 according to the present embodiment, as shown in FIG. 12C, the display unit 146 is drawn straight out of the housing 70 and deployed, and the orientation of the electronic cassette 22 and the display unit 146 are displayed. The orientation of the display unit 146 is determined from the orientation of the housing 70 detected by the gravity sensor 111 assuming that the orientations coincide with each other.

  As in the first embodiment, the cassette control unit 106 switches the RIS information display / correction screen and the radiographic image on the display unit 146 according to the pull-out amount by which the display unit 146 has been pulled out, and causes the display unit 146 to display it.

  Further, also in the display of the RIS information display / correction screen and the display of the radiation image on the display unit 146, the cassette control unit 106 determines that the orientation of the casing 70 detected by the gravity sensor 111 is that of the display unit 146 with respect to the horizontal plane. When the angle of the display surface is greater than or equal to the predetermined angle, control is performed so that information is displayed on the display surface of the display unit 146 with the vertical direction of the display unit 146 being the vertical direction of information, and the detected housing When the orientation of the body 70 is such that the angle of the display surface of the display unit 146 with respect to the horizontal plane is less than the predetermined angle, the direction in which the display unit 146 is pulled out from the housing 70 is the vertical direction of the information. Control to display information on the display surface.

  As described above, the information is displayed on the display unit 146 of the electronic cassette 22 by changing the display direction to the direction in which the confirmation is easy according to the orientation of the casing 70 detected by the gravity sensor 111. It becomes easy.

  In the fourth embodiment, as illustrated in FIG. 12, the storage unit 150 is provided in the housing 70 and the display unit 146 is stored in the storage unit 150 (inside the housing 70). The present invention is not limited to this, and as shown in FIG. 13 as an example, the housing portion is formed inside, and the winding shaft 148 to which the display portion 146 is attached is rotatably supported. A configuration in which the display unit storage case 156 provided with the rotation mechanism and the latch mechanism is attached to the side surface of the housing 70 of the electronic cassette 22 may be adopted. Although the handle portion 124 is also attached to the display unit storage case 156 in FIG. 13, the handle portion according to the present invention is not directly attached to the housing if it is integrated with the housing of the electronic cassette 22. May be.

[Fifth Embodiment]
Next, a fifth embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part same as 1st Embodiment-4th Embodiment, and description is abbreviate | omitted.

  FIG. 14 shows (a part of) an electronic cassette 22 according to the fifth embodiment. As shown in FIG. 14C, the display unit 160 provided in the electronic cassette 22 according to the fifth embodiment has a flat shape, and a plurality of partial display units 162 each composed of a display device such as an LCD, It is configured to be unfoldable so as to be flush with each other and to be foldable. As shown also in FIG. 15, each of the partial display units 162 includes an opposing first and second side parallel to the first direction, and an opposing third and fourth side being the first direction. The display unit 160 has a quadrilateral shape inclined at a predetermined angle with respect to a second direction orthogonal to each other, and the first side of each partial display unit is connected to the second side of another partial display unit. The plurality of partial display parts 162 are arranged and connected in a matrix so that the third side is connected to the fourth side of the other partial display part.

  In addition, although illustration is abbreviate | omitted, between each partial display part 162 is connected with the hinge. As the hinge, a hinge provided with a rotation blocking portion that has an opening / closing angle of 0 ° (fully closed) to 180 ° (fully open) and prevents rotation beyond 180 ° is used. The shape and arrangement of the individual partial display units 162 described above correspond to dividing the display surface of the single display unit 160 into a plurality of partial display units 162 following so-called Miura folding. 162 is folded in a Miura fold shape, but the hinge is rotated between the individual partial display portions 162 when the plurality of partial display portions 162 are folded in a Miura fold or valley folded. It is attached between the individual partial display parts 162 in an orientation depending on whether it is rotated. Thereby, when the display part 160 is unfolded so that the plurality of partial display parts 162 are substantially flush with each other, the individual hinges are prevented from rotating beyond 180 °. The state is maintained in a state where the partial display portion 162 is approximately flush (the state shown in FIG. 14C).

  Although not shown, the individual partial display units 162 are connected to each other by flexible electrical wiring, and the display unit 160 is connected to a plurality of signals by signals transmitted through the electrical wiring. Information such as an image can be displayed on almost the entire surface of the display unit 160 in a state where the partial display unit 162 is expanded so as to be approximately flush with each other. 14 and 13 show a display unit 160 having a configuration in which a total of nine partial display units 162 are connected in 3 × 3, but the display unit has a configuration in which a larger number of partial display units are connected. Also good.

  As described above, the display unit 160 according to the fifth embodiment has a configuration in which the display surface of a single display unit 160 is divided into a plurality of partial display units 162 following Miura folding. Since the shape of 162 is non-rectangular, there is a disadvantage that a display device dedicated to the partial display unit 162 has to be developed and manufactured, but a plurality of partial display units 162 arranged and connected in a matrix form can be developed. , Single and specific partial display unit 162 (partial display unit 162 located in the uppermost layer in a state where a plurality of partial display units 162 are folded (the state shown in FIGS. 14A and 14B)) in a certain direction Folding of the plurality of partial display portions 162 in a state of being unfolded so as to be approximately flush with each other can be realized only by performing an unfolding operation that applies a force (tensile force in the direction of arrow M shown in FIG. 14B). Also about the specific part This can be realized simply by performing a folding operation in which a force in a certain direction (tensile force in the direction of arrow N shown in FIG. 14C) is applied to the minute display portion 162, and the plurality of partial display portions 162 can be easily expanded and folded. be able to. In the fifth embodiment, the gripping portion 164 is attached to the corner portion of the specific partial display portion 162 described above.

  Further, in the casing 70 of the electronic cassette 22 according to the fifth exemplary embodiment, a plurality of partial display units 162 are provided at corners between the side surface to which the handle portion 124 is attached and the side surface adjacent to the side surface. A storage portion 166 that is open to the outside of the housing 70 and has a shape and size that can store the folded display portion 160 is provided. A rotating shaft 168 extending in a direction orthogonal to the irradiated surface 72 is provided upright at a corner portion in the storage portion 166, and the rotating shaft 168 passes through a circular hole provided at the approximate center of the rotating member 170. The rotating member 170 is attached in the vicinity of the corner of the partial display unit 162 located in the lowermost layer in a state in which the multiple partial display units 162 among the plurality of partial display units 162 of the display unit 160 are folded. ing.

  Accordingly, the display unit 160 can be rotated about the rotation shaft 168 regardless of whether the plurality of partial display units 162 are folded or unfolded (the plurality of partial display units 162 are folded). FIGS. 14A and 14B show the rotation of the display unit 160 in a state where the plurality of partial display units 162 are deployed, and FIG. To (C)). The display unit 160 is operated by performing an operation (drawing operation) to rotate in the arrow J direction in FIG. 14A around the rotation shaft 168 in a state where the plurality of partial display units 162 are folded. As shown in FIG. 14 (B), an operation (storage operation) that is pulled out from the storage portion 166 and rotated around the rotation shaft 168 in the direction of arrow K in FIG. 14 (B) is performed. As shown in FIG. In the state where the plurality of partial display portions 162 are expanded so as to be approximately flush with each other, the display portion 160 is displayed as shown in FIG. The portion 160 is located in a space outside the side surface of the housing 70 where the handle portion 124 is attached, or the display portion 160 is the handle portion of the housing 70 as shown in FIG. It is possible to take a state in which it is located in a space outside the side surface adjacent to the side surface on which 124 is attached, or an intermediate state as shown in FIG. Thus, the display unit 160 is also attached to the housing 70 so that the display surface can be stored (and folded).

  In addition, among the plurality of partial display units 162 of the display unit 160, the plurality of partial display units 162 are folded into the partial display unit 162 positioned in the lowest layer in a state where the plurality of partial display units 162 are folded, and In a state where the display unit 160 is stored in the storage unit 166, the grip unit 172 is attached to the side surface exposed to the outside of the housing 70. By gripping the grip portion 172, the display portion 160 stored in the storage portion 166 can be easily pulled out. The display unit 160 corresponds to the display unit according to the present invention.

  Since the display unit 162 can be folded, the orientation of the housing 70 of the electronic cassette 22 does not necessarily match the orientation of the display unit 162. However, in the electronic cassette 22 according to the present embodiment, as shown in FIG. 14C, the display unit 162 is pulled out of the housing 70 and expanded, and the orientation of the housing 70 of the electronic cassette 22 and the display unit 162 are The orientation of the display unit 162 is determined from the orientation of the housing 70 detected by the gravity sensor 111 as the orientations coincide with each other.

  The cassette control unit 106 controls the display unit 162 to display the RIS information display / correction screen or the radiographic image. Switching between the display of the RIS information display / correction screen and the display of the radiographic image is switched to the switch of the input unit. It is assumed to be performed by a predetermined switching operation.

  Also in the display of the RIS information display / correction screen and the display of the radiation image on the display unit 162, the cassette control unit 106 determines that the orientation of the casing 70 detected by the gravity sensor 111 is the display surface of the display unit 162 with respect to the horizontal plane. If the angle is an angle that is equal to or greater than the predetermined angle, the display unit 162 is controlled so that information is displayed on the display surface of the display unit 162 with the vertical direction of the display unit 162 being the vertical direction of the information, and the detected casing 70 Is the direction in which the angle of the display surface of the display unit 162 with respect to the horizontal plane is less than the predetermined angle, the display surface of the display unit 162 is defined as the direction in which the display unit 162 is pulled out from the housing 70 in the vertical direction. Control information to be displayed.

  As described above, the information is displayed on the display unit 162 of the electronic cassette 22 by changing the display direction to the direction in which the confirmation is easy according to the orientation of the casing 70 detected by the gravity sensor 111. It becomes easy.

[Sixth Embodiment]
Next, a sixth embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part same as each embodiment mentioned above, and description is abbreviate | omitted.

  FIG. 16 shows (a part of) an electronic cassette 22 according to the sixth embodiment. As shown in FIGS. 16B and 16C, the electronic cassette 22 according to the sixth embodiment is provided with a long sheet-like display unit 200 having flexibility similar to the fourth embodiment. It has been. One end of the display unit 200 in the longitudinal direction is attached to the winding shaft 202. In addition, the electronic cassette 22 according to the sixth exemplary embodiment includes a handle portion 204 having a shape in which a gripped portion (gripping portion) is thickened as a handle portion for gripping when the housing 70 is moved. It is attached to the body 70. In the gripping portion of the handle portion 204, a storage space (storage portion 206) that can store the display portion 200 and the winding shaft 148 in a state where the entire amount of the display portion 200 is wound around the winding shaft 148 is provided. Yes. The winding shaft 148 is disposed in the storage unit 206 and is rotatably supported by the handle unit 204. Although not shown, the storage unit 206 is provided with the same rotation mechanism and latch mechanism as in the fourth embodiment.

  A protective member 208 is attached to the end of the display unit 200 opposite to the side attached to the take-up shaft 202, and a single grip 154 is attached to the side surface of the protective member 208. ing. Further, an opening 210 is provided at a position corresponding to the storage portion 206 in the handle portion 204, and a protective member 208 is provided at a position corresponding to the opening 210 in the storage portion 206 by the rotational force of the rotation mechanism. A stopper (not shown) is provided to prevent further entry from the position shown in FIG.

  In the display unit 200 according to the sixth embodiment, the grip unit 154 is gripped, and the display unit 200 is pulled out from the storage unit 206 of the handle unit 204 against the rotational force of the rotation mechanism (the arrow D in FIG. 16). Direction), the entire amount of the display unit 200 is pulled out from the take-up shaft 202, and the rotation of the take-up shaft 202 by the rotation mechanism is blocked by the latch mechanism. The display surface expands to the outer space of the display area, and a state in which most of the display portion 200 is exposed outside the housing 70 (outside the handle portion 204) (the state shown in FIG. 16C). In addition, when a storing operation for further pulling the winding shaft 202 is performed via the grip portion 154, the protective member 208, and the display unit 200 from this state, the rotation blocking state of the winding shaft 202 by the latch mechanism is released, and the display unit When the winding shaft 202 is rotated by the rotation mechanism in the winding direction of the 200, the display unit 200 is wound around the winding shaft 202 and stored in the storage unit 206 (see FIG. 16A). It becomes. Thus, the display unit 200 according to the sixth embodiment is provided in the handle unit 204 so that the display surface can be stored. The display unit 200 corresponds to the display unit according to the present invention.

  Since the display unit 200 is flexible as in the fourth embodiment, the orientation of the housing 70 of the electronic cassette 22 and the orientation of the display unit 200 do not necessarily match, but as in the fourth embodiment, FIG. C), the display unit 200 is drawn straight out of the housing 70 and deployed, and the gravity sensor 111 detects that the orientation of the housing 70 of the electronic cassette 22 and the orientation of the display unit 200 are the same. The orientation of the display unit 200 is determined from the orientation of the casing 70.

  As in the first embodiment, the cassette control unit 106 switches between the RIS information display / correction screen and the radiation image and displays them on the display unit 200 according to the amount by which the display unit 200 has been pulled out.

  Further, also in the display of the RIS information display / correction screen and the display of the radiation image on the display unit 200, the cassette control unit 106 determines that the orientation of the housing 70 detected by the gravity sensor 111 is that of the display unit 200 with respect to the horizontal plane. When the angle of the display surface is greater than or equal to the predetermined angle, control is performed so that information is displayed on the display surface of the display unit 200 with the vertical direction of the display unit 200 being the vertical direction of the information. When the orientation of the body 70 is an orientation in which the angle of the display surface of the display unit 200 with respect to the horizontal plane is less than the predetermined angle, the direction in which the display unit 200 is pulled out from the housing 70 is the vertical direction of the information. Control to display information on the display surface.

  As described above, the information is displayed on the display unit 200 of the electronic cassette 22 by changing the display direction to the direction in which the confirmation is easy according to the orientation of the housing 70 detected by the gravity sensor 111. It becomes easy.

[Seventh Embodiment]
Next, a seventh embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected to the part same as 6th Embodiment, and description is abbreviate | omitted.

  FIG. 17A shows (a part of) an electronic cassette 22 according to the seventh embodiment. In the handle portion 204 according to the seventh embodiment, a grip portion 204A to be gripped when moving the housing 70 of the handle portion 204 is formed by a pair of base portions 204B provided at both longitudinal ends of the grip portion 204A. Further, it is supported so as to be rotatable around an axis along the longitudinal direction of the gripping portion 204A (in the direction of arrow Q in FIG. 17A). In addition, an injection hole 218 is formed in an intermediate portion of the grip portion 204A, and projection light for projecting and displaying information to be displayed is emitted at a position corresponding to the injection hole 218 in the grip portion 204A. A projection device 220 capable of projecting and displaying information of a display target on the projection object irradiated with the projected light by emitting through the hole 218 is provided. The projection device 220 rotates integrally with the gripper 204A when the gripper 204A rotates. Thereby, the emission direction of the projection light from the handle part 204 changes with the rotation of the grip part 204A.

  As the projection device 220, for example, an ultra-small projector device such as DLP (Digital Light Processing) pico (registered trademark) manufactured by Texas Instruments, Inc. can be used. This device incorporates an ultra-small DMD (digital micromirror device), and can generate and emit projection light by individually driving each mirror arranged two-dimensionally in the DMD. The projection device 220 may be an LCD type ultra-small projector device using a small high-temperature polysilicon TFT liquid crystal panel (HTPS), or modulation of DMD, acousto-optic device, etc. Projection device configured to modulate a semiconductor laser as a light source instead of an element (for example, Nikkei BP, "miniature projector with" micromachine exhibition "Japan signal miniaturized to cigarette case size", [online], [ Search on Aug. 14, 2008] and the Internet <URL: http://techon.nikkeibp.co.jp/article/NEWS/20080731/155810/>) can also be used.

  Further, in the seventh embodiment, the input unit 108 including a touch panel is omitted, and instead of this, an input unit (not illustrated) including a switch or the like for instructing the projection display of the radiation image by the projection device 220 is provided. It is provided on the handle portion 204 or the housing 70. The input unit is connected to the cassette control unit 106. The cassette control unit 106 performs projection display when a radiograph image projection display by the projection device 220 is instructed by a photographer operating a switch or the like of the input unit. The radiographic image data is converted into modulation data usable for modulation in the projection device 220 and then output to the projection device 220. As a result, the projection device 220 generates projection light modulated in accordance with the modulation data input from the cassette control unit 106, and the generated projection light is out of the gripper 204A (outside the handle unit 204) via the emission hole 218. To inject.

  When the projection light is emitted through the exit hole 218, the photographer irradiates the projection object 222 (see FIG. 17B) such as a wall or a screen (or the palm of the photographer's hand). As described above, the direction in which the projection light is emitted from the handle portion 204 is adjusted by rotating the grip portion 204A. As a result, projection light is irradiated onto the projection object 222, and a radiographic image is projected and displayed on the projection object 222 as shown in FIG. Note that the information to be projected and displayed on the projection object 222 is not limited to the radiation image, and it is also possible to display character information and the like. The projection device 220 corresponds to the display unit according to the present invention.

  The electronic cassette 22 according to the present embodiment projects and displays information such as the projection device 220, and the grip portion 204A provided with the projection device 220 is rotatable about an axis. For this reason, in the electronic cassette 22 according to the present embodiment, the gravity sensor 111 is provided in the grip portion 204A, and the orientation of the image projected by the projection device 220 is detected. The gravity sensor 111 is provided on the main body side of the electronic cassette 22, and the rotation state of the gripper 204A is detected. The orientation of the image projected by the projection device 220 in consideration of the detected rotation state of the gripper 204A. It is good also as what detects.

  The cassette control unit 106 controls the projection device 220 to display the RIS information display / correction screen or the radiographic image. Switching between the display of the RIS information display / correction screen and the display of the radiographic image is switched to the switch of the input unit. It is assumed to be performed by a predetermined switching operation.

  Also in the display of the RIS information display / correction screen and the display of the radiation image on the display unit 134, the cassette control unit 106 moves the upper and lower sides of the image projected and displayed based on the orientation of the grip unit 204A detected by the gravity sensor 111. Control is performed so that information is displayed with the direction as the vertical direction of the information.

  As described above, the information is projected by the projection device 220 while changing the display direction to the direction in which the confirmation can be easily performed according to the orientation of the grip portion 204 </ b> A detected by the gravity sensor 111.

  Note that, when the orientation of the casing 70 detected above is an orientation in which the angle of the display surface of the display unit with respect to the horizontal plane is less than the predetermined angle, the direction in which the display unit is pulled out from the housing 70 is set to Although the embodiment has been described in which control is performed so that information is displayed on the display surface of the display unit as a direction, the present invention is not limited to this, and information is displayed on the display surface of the display unit with the direction opposite to the pull-out direction being the vertical direction of the information. You may control so that it may be displayed.

  In addition, although the aspect which pulls out and uses a display part was demonstrated above, it is not restricted to this, For example, you may provide a display part in the back surface opposite to the to-be-irradiated surface 72 of the housing | casing 70. In this case, when the vibration applied to the housing 70 is detected by the gravity sensor 111 and it is detected that shooting has been performed, and it is detected that vibration has been applied to the housing 70, this is obtained by the current shooting. The obtained radiation image may be displayed on the display surface of the display unit on the back side. In this case, as in the second embodiment, the display unit 134 is in a state in which the housing 70 of the electronic cassette 22 is arranged so that the irradiated surface 72 side faces upward, and the storage unit 122 with the display surface facing downward. In the case of being housed inside, the rear surface side of the housing 70 can be used as a transparent member so that the display surface of the display unit 134 can be seen from the outside.

  In the above description, the radiographic image captured in the past has been described as a radiographic image related to the current imaging, and the radiographic image captured in the past and having the same patient and the same imaging site is displayed on the display unit. However, the present invention is not limited to this, and a radiographic image captured in the past and having the same imaging region as the current imaging may be displayed on the display unit as a radiographic image captured in the past and related to the current imaging.

  Moreover, although the aspect which acquired the data of the related radiographic image image | photographed in the past from the RIS server 14 via the console 26 was demonstrated above, it is not limited to this, The data of the radiographic image image | photographed in the past are not limited. Stored in the image memory 104 of the electronic cassette 22, and when radiographic images are taken, the associated radiographic image data is retrieved from the radiographic image data stored in the image memory 104 and displayed. You may make it display on a part.

  In addition, it is not an essential process to display related radiographic images captured in the past on the display unit 120 or the like, and the radiographic image may be displayed on the display unit 120 only when instructed by the photographer. The function of displaying the radiographic image on the display unit 120 or the like may be omitted, and only the radiographic image captured this time may be displayed on the display unit 120.

It is a block diagram showing a schematic structure of a radiation information system concerning this embodiment. It is a block diagram which shows schematic structure of a radiographic imaging system. It is the schematic which shows an example of arrangement | positioning of the radiation generator in an imaging | photography chamber, or an electronic cassette. It is a perspective view which shows the internal structure of the electronic cassette concerning 1st Embodiment. It is a side view which shows the internal structure of the electronic cassette concerning 1st Embodiment. It is a perspective view which shows accommodation / expansion | deployment of the display part of the electronic cassette concerning 1st Embodiment. It is a flowchart which shows an example of the content of the information display process performed in the cassette control part of an electronic cassette. It is a perspective view which shows an example of the display form which displayed the RIS information display and correction screen on the display part which concerns on 1st Embodiment. It is a perspective view which shows an example of the display form which displayed the radiographic image on the display part which concerns on 1st Embodiment. It is a perspective view which shows accommodation / expansion | deployment of the display part of the electronic cassette concerning 2nd Embodiment. It is a perspective view which shows accommodation / expansion | deployment of the display part of the electronic cassette concerning 3rd Embodiment. It is a perspective view which shows accommodation / expansion | deployment of the display part of the electronic cassette concerning 4th Embodiment. It is a perspective view which shows accommodation / expansion | deployment of the display part in the aspect which externally attached the display part of the electronic cassette concerning 4th Embodiment to the housing | casing. It is a perspective view which shows accommodation / expansion | deployment of the display part of the electronic cassette concerning 5th Embodiment. In the electronic cassette concerning a 5th embodiment, it is a top view showing rotation of a display part in the state where it is developed. It is a perspective view which shows accommodation / expansion | deployment of the display part of the electronic cassette concerning 6th Embodiment. (A) is an electronic cassette according to the seventh embodiment, and (B) is a perspective view showing a state in which an image is projected and displayed by a projection unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Radiation information system 18 Radiation imaging system 20 Radiation generator 22 Electronic cassette 26 Console 70 Case 72 Irradiation surface 76 Radiation detector 100 Gate line driver 102 Signal processing part 104 Image memory 106 Cassette control part 108 Input part 110 Extraction sensor 120 display unit 134 display unit 140 display unit 146 display unit 160 display unit 190 display unit 200 display unit 220 projection device

Claims (11)

Image output means for detecting radiation applied to the irradiated surface of the housing through the subject and outputting radiation image data representing the distribution of the irradiation radiation amount;
Storage means for storing radiation image data output from the image output means;
Display means attached to the housing;
A housing orientation detection means for detecting the orientation of the housing;
Display control means for controlling the display means to display information by changing the display direction to a direction that can be easily confirmed according to the orientation of the casing detected by the casing orientation detection means;
A portable radiographic image forming apparatus. The portable radiation image forming apparatus according to claim 1, wherein the display unit is capable of pulling a display surface out of the housing. The display control means, when the orientation of the housing detected by the housing orientation detection means is an orientation in which the angle of the display surface of the display means with respect to a horizontal plane is a predetermined angle or more, the vertical direction of the display surface The portable radiographic image forming apparatus according to claim 2, wherein the information is displayed on the display surface of the display unit in a vertical direction of information. The display control means, when the orientation of the housing detected by the housing orientation detection means is an orientation in which the angle of the display surface of the display means with respect to a horizontal plane is less than a predetermined angle, The portable radiographic image forming apparatus according to claim 2, wherein the information is displayed on the display surface of the display unit with the direction of pulling out from the housing or the opposite direction as the vertical direction of information. A drawing amount detecting means for detecting a drawing amount of the display surface outside the housing;
The said display control means switches the content of the information displayed on the display surface of the said display means according to the change of the drawing-out amount detected by the said drawing-out amount detection means. Portable radiographic image forming apparatus. The display control means displays character information on the display surface of the display means when the withdrawal amount detected by the withdrawal amount detection means is less than a predetermined value, and the withdrawal amount detected by the withdrawal amount detection means The portable radiographic image forming apparatus according to claim 5, wherein a radiographic image whose data is stored in the storage unit is displayed on a display surface of the display unit when the value is equal to or greater than a predetermined value. The storage means stores radiographic image data obtained in past imaging,
The portable radiographic image forming apparatus according to claim 6, wherein the display control unit displays a past radiographic image stored in the storage unit as the radiographic image on a display surface of the display unit. It further comprises a photographing detection means for detecting whether photographing has been performed,
The display control unit displays a past radiographic image stored in the storage unit as the radiographic image until the radiographing is detected by the imaging detection unit. The radiographic image obtained by this imaging | photography is displayed on the display surface of the said display means as the said radiographic image after detecting that imaging | photography was performed by the said imaging | photography detection means. Portable radiographic image forming apparatus. The portable radiation image forming apparatus according to claim 1, wherein the display unit is a projection device that projects and displays information to be displayed. The storage means stores at least one of attribute information indicating the attribute of the subject and shooting condition information indicating shooting conditions.
The display control means causes the information stored in the storage means among the attribute information and the photographing condition information to be displayed as character information on the display surface of the display means. The portable radiographic image forming apparatus described. Back surface display means provided with a display surface on the surface opposite to the irradiated surface in the housing;
Shooting detection means for detecting whether shooting has been performed;
Vibration detecting means for detecting vibration applied to the housing;
Further comprising
The display control means is obtained in the current shooting when it is detected by the vibration detection means that vibration has been applied to the housing after the shooting detection means has detected that shooting has been performed. The portable radiographic image forming apparatus according to any one of claims 1 to 10, wherein the radiographic image is displayed on a display surface of the back surface display means.

Images