JP5068714B2 - Portable radiographic image forming device - Google Patents

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. The electronic cassette is highly portable, so you can shoot a patient while placed on a stretcher or bed and change the position of the electronic cassette, making it easy to adjust the imaging part. Can be dealt with 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. 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 an X-ray image displayed on a liquid crystal display by laminating an upper cover, an X-ray grid, a thin flat panel detector, a digital X-ray information storage unit, a thin liquid crystal display, and a lower cover. An X-ray diagnostic apparatus configured to be visible from the back side is disclosed.

  Further, in Patent Document 3, a configuration in which a reference display unit capable of displaying an image is attached in the housing of the digital image detector is shown in FIG. 2, and the reference display unit is detachably attached to the housing. FIG. 3 shows a structure that is mechanically and electrically coupled to an electrical interface attached to the housing, and FIG. 4 shows a structure in which a reference display unit is provided separately from the housing and performs wireless communication with the digital image detector. ing.

  Furthermore, Patent Document 4 discloses a configuration in which an image display device made of a substance having a high X-ray transmittance is fixed at a position adjacent to the body surface of a subject by a support mechanism.

Further, in Patent Document 5, a control device including an image display unit, an operation unit, and a communication unit that performs wireless communication is provided independently of the X-ray image capturing device, and the operator can use a leg unit that can change the mounting angle. The structure which can be arrange | positioned in the place where it is easy to handle is disclosed.
JP 2000-262504 A JP 7-246199 A JP 2006-150078 A JP 2004-97543 A JP 2004-97635 A

  However, for example, when photographing in a supine position, an electronic cassette with the surface to be irradiated facing up is inserted and placed between the patient lying on the bed and the bed, and then radiation is applied from above. On the other hand, in the techniques described in Patent Documents 1 and 2, the display unit is arranged on the back side (the opposite side to the irradiated surface) of the casing of the electronic cassette. When confirming by displaying on the screen, it is necessary to pull out the electronic cassette from between the bed and the patient, and to invert the top and bottom of the electronic cassette so that the display unit faces upward. In addition, when taking an image again, it is necessary to reverse the top and bottom of the electronic cassette so that the irradiated surface side of the housing faces up, and to insert it again between the bed and the patient. It is.

  Further, in the configuration shown in FIG. 2 of Patent Document 3, since the display unit is arranged on the irradiated surface side of the casing of the electronic cassette, when the captured radiation image is displayed on the display unit and confirmed. Although it is not necessary to insert / remove the electronic cassette or to invert the top / bottom, the display surface of the display unit may come into contact with the patient's body depending on the imaging region, making it difficult to confirm the radiation image. In addition, since the display unit must be provided outside the radiation detection area in the irradiated surface of the housing of the electronic cassette, the display surface of the display unit is provided for the purpose of ensuring confirmation of the radiation image and ensuring accuracy in the confirmation. When the size is increased, the casing of the electronic cassette is enlarged accordingly, and there is a problem that handling of the electronic cassette is greatly reduced.

  Further, the configuration shown in FIG. 3 of Patent Document 3 is different from the configuration shown in FIG. 2 of Patent Document 3 in that the display unit is detachable from the electronic cassette body, but in the recess of the housing. The position of the display unit in the state of being inserted into the device is the same as the configuration shown in FIG. In addition to difficulty, when the display surface of the display unit is increased in size, there is a problem that the casing of the electronic cassette increases in size and handling of the electronic cassette is greatly reduced. .

  Further, in FIG. 4 of Patent Document 3, the display unit is configured as a separate casing independent of the electronic cassette and wirelessly communicates with the electronic cassette. However, the display unit of a separate casing independent of the electronic cassette is displayed. In order to maintain the image or the like in a state where it can be easily visually recognized and located at a position close to the electronic cassette, some kind of support mechanism is required as in the technique described in Patent Document 4 described below. Become. And when a display part is made to support a support mechanism, since the ease of movement falls compared with an electronic cassette main body, there exists a problem that the portability of an electronic cassette is impaired. In addition, since the support mechanism cannot be installed at a position close to the electronic cassette at the destination of the electronic cassette, there is a possibility that the position of the electronic cassette and the position of the display unit are separated. In that case, a display unit is provided. There is also a problem that the advantage is lost.

  In addition, the electronic cassette has portability, and it has the feature that the same electronic cassette can be used for shooting in a different shooting room as well as shooting in a standing position or standing position. On the other hand, in the technique described in Patent Document 4, the display unit is separate from the electronic cassette, and the display unit is fixed at a position adjacent to the body surface of the subject by the support mechanism. The movement of the display unit is not easy, and there is a problem that the portability of the electronic cassette is impaired as in the configuration shown in FIG. In addition, since the support mechanism cannot be installed at a position close to the electronic cassette at the destination of the electronic cassette, there is a possibility that the position of the electronic cassette and the position of the display unit are separated. In that case, a display unit is provided. There is also a problem that the advantage is lost.

  Moreover, in the technique described in Patent Document 5, the display unit is separate from the electronic cassette, and the display unit is connected to the electronic cassette by legs that can be mounted at different angles. Therefore, within the reach of the legs. Although the display unit can be moved freely, when the electronic cassette is moved, the leg portion and the display unit move together with the electronic cassette main body, which causes a problem of poor handling. In addition, the technique described in Patent Literature 5 can change the positional relationship between the electronic cassette body and the display unit freely, but the center of gravity position as a whole depends on the positional relationship between the electronic cassette body and the display unit. There is also a disadvantage that the stability is greatly reduced by greatly deviating from the center of the casing of the electronic cassette body, and in the state where the stability is greatly reduced, the balance is lost even with a slight external force, and the display part is There is also a risk of inconvenience such as damage caused by collision with a foreign object.

  The present invention has been made in view of the above-described facts, and an object thereof is to obtain a portable radiographic image forming apparatus capable of displaying information such as radiographic images without causing deterioration in handleability and portability.

  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. An image output means for outputting radiation image data, a storage means for storing radiation image data output from the image output means, and the housing are integrated, and a display surface can be developed outside the housing, And display means capable of being stored in the housing, and display control means for displaying arbitrary information including a radiation image whose data is stored in the storage means on the display surface of the display means. Has been.

  The portable radiographic image forming apparatus according to the first aspect of the present invention detects radiation irradiated to the irradiated surface of the casing through the subject, and outputs radiation image data representing the distribution of the irradiation radiation dose. An image output means is provided, and the radiographic image data output from the image output means is stored in the storage means. Further, the invention described in claim 1 includes display means integrated with the casing, and the display means can be developed outside the casing and can be stored in the casing. Then, the display control unit displays arbitrary information including the radiation image whose data is stored in the storage unit on the display surface of the display unit.

  Thus, since the display means according to the first aspect of the invention is integrated with the housing, the display means is supported by the housing even when the display surface of the display means is deployed outside the housing. Maintained in a state. Thus, even when the portable radiographic image forming apparatus is moved, the display surface of the display unit can be positioned at a fixed position with respect to the housing without using a support mechanism for supporting the display unit. it can. Further, since the display means can be stored in the housing, it is possible to prevent the display means from obstructing movement by storing the display means in the housing when the portable radiation image forming apparatus is moved. Therefore, it can be avoided that the portability of the portable radiographic image forming apparatus is reduced by providing the display means.

  In addition, since the display means can be expanded outside the housing, the display surface of the display means can be expanded outside the housing to prevent the display surface from touching the subject and making it difficult to view information. be able to. In addition, since the display means is integrated with the housing, the change in the positional relationship between the housing and the display surface in a state where the display surface is deployed outside the housing is restricted. An excessive change in the position of the center of gravity of the entire forming apparatus is also suppressed. Therefore, according to the first aspect of the present invention, it is possible to display information such as a radiographic image without causing deterioration in handleability and portability.

  In the first aspect of the present invention, a handle for gripping the casing when moving the casing is provided on the side of the casing of the portable radiographic image forming apparatus according to the present invention that is in contact with the irradiated surface. The display means is preferably arranged so that the display surface expands to the side of the outside of the housing where the handle portion is provided, for example. When the handle is provided on the side surface of the housing, the movement and position adjustment of the portable radiographic image forming apparatus is performed by gripping the handle, so the portable radiographic image forming apparatus that has undergone movement and position adjustment is The side of the housing where the handle portion is provided faces the operator who has moved or adjusted the position of the portable radiographic image forming apparatus, and the space outside the side is empty (there are other objects present) State). The invention according to claim 2 utilizes this, and the display means is arranged so that the display surface extends to the side of the outside of the housing where the handle portion is provided. After performing the movement or position adjustment, the work of expanding the display surface of the display means can be easily performed, and the workability of the work can be improved.

  Further, in the invention according to claim 1 or 2, the display means includes a housing in a direction in which the display surface is unfolded in a state where the display means is housed in the housing. It is preferable that a gripping portion protruding from is attached. Thereby, by gripping the grip portion, the work of expanding the display surface of the display means stored in the housing to the outside of the housing can be easily performed, and the workability of the work can be improved. .

  Moreover, the grip part which concerns on invention of Claim 3 may be comprised so that it can utilize as a handle for gripping, when moving a housing | casing, for example, as described in Claim 4. Accordingly, the grip portion can be used not only when the display surface of the display unit is deployed outside the housing but also when moving or adjusting the position of the portable radiation image forming apparatus. It is also possible to reduce the number of parts by omitting the described handle portion.

  Further, in the invention according to any one of claims 1 to 4, for example, as described in claim 5, an image output means is provided in the casing of the portable radiation image forming apparatus as viewed from the irradiated surface side. A storage space may be provided on the back side, and the display means may be configured to be stored in the storage space in the housing. Thereby, compared with the case where the storage space of the image output means and the display means is juxtaposed when viewed from the irradiated surface side, the size of the housing viewed from the irradiated surface side can be reduced.

  Further, in the invention according to any one of claims 1 to 5, the display means is a flat display surface provided with a display surface as described in claim 6, for example, and is slidable with respect to the housing. The display unit is supported by the body, the display unit is slid in the direction to be pulled out from the housing, the display surface is expanded outside the housing, and the display unit is slid in the direction to be inserted into the housing. It can comprise so that it may be accommodated in a housing | casing. Since the casing of the portable radiographic image forming apparatus is generally a flat box shape, in the invention of claim 6, the outer shape of the display unit can be flat and the display surface can be rectangular, and the effective display area As a large display device, a general display device having a rectangular display surface (such as an LCD) can be incorporated, and a mechanism for supporting the display unit in a slidable manner is relatively simple. The configuration of the portable radiation image forming apparatus can be simplified.

  Further, in the invention described in claim 6, the display means is orthogonal to the direction in which the end of the display unit is pulled out from the housing in a state in which the display unit is pulled out from the housing as described in claim 7, for example. It is good also as a structure further provided with the support mechanism supported rotatably about an axis | shaft, and the rotation means which rotates a display part to the said axis | shaft in the state which the display part was pulled out from the inside of a housing | casing. In the invention according to claim 7, although the structure is somewhat complicated by the provision of the support mechanism and the rotation means, the display unit is slid in the direction of pulling out from the housing, and the display unit is moved from the housing. When the display unit is pulled out, the display unit is rotated around the axis by the rotation means, and thus the display surface of the display unit is approximately facing the above-mentioned position when viewed from the operator located on the side of the casing. By providing a stopper to stop the rotation, the orientation of the display unit pulled out from the housing can be changed to an orientation that makes it easier to see the information displayed on the display surface, and is displayed on the display surface. The visibility of the information can be improved.

  Further, in the invention according to any one of claims 1 to 5, the display means is, for example, as described in claim 8, provided with a flat display surface and is rotatable at one end with respect to the housing. The display section is supported by the casing, and the display section is rotated in the direction of pulling out from the casing, so that the display surface is expanded outside the casing and the display section is rotated in the direction of insertion into the casing. It is good also as a structure accommodated in a housing | casing. In the invention according to claim 8, since the outer shape of the display unit is limited to a shape (for example, a flat plate shape and an arc shape of the display surface) that can expand and store the display surface by rotating the display unit, the display surface is Although there is a drawback that the effective display area tends to be small when a general display device having a rectangular shape is incorporated, it is necessary to grip a part of the display part as far as possible from one end part rotatably supported by the housing. Thus, the display surface can be easily developed and stored with one hand.

  Further, in the invention according to any one of claims 1 to 4, the display means includes a display section provided with a display surface in a flexible sheet shape as described in claim 9, for example. A winding shaft provided in the housing and having one end portion of the display unit attached thereto, and the display surface in a state of being wound in layers on the winding shaft is pulled out from the housing, whereby the display surface is It is good also as a structure accommodated in a housing | casing by expand | deploying out of a body and rotating a winding shaft in the direction which winds up a display part. In the invention of claim 9, the display unit needs to have flexibility, and a display device applicable to the display unit is limited to electronic paper or the like, but compared with the size of the display surface of the display unit. Thus, the display portion can be stored in a small space, and the display surface of the display portion can be easily increased in size.

  Further, in the invention according to any one of claims 1 to 4, the display means is configured so that each of the plurality of flat partial display portions is substantially flush with each other, as described in claim 10, for example. Expandable and foldable connected, equipped with a display unit that can be stored in the housing in a state in which a plurality of partial display units are folded, and the display unit in a state in which the plurality of partial display units are folded out of the housing After being pulled out, any one of the partial display units is pulled out in a predetermined direction for expanding the plurality of partial display units, so that the display surface including the plurality of partial display units is expanded outside the housing, and the plurality of partial display units It is good also as a structure by which a display means is accommodated in a housing | casing by the display part of the state in which the some partial display part was folded after being folded in the said housing | casing. In the invention according to claim 10, since the display unit is configured such that the plurality of partial display units can be expanded and folded so as to be approximately flush with each other, an image is displayed on a connection portion of each partial display unit. However, the display unit can be stored in a small space as compared with the display surface size of the display unit, and the display surface of the display unit can be made large. It becomes easy.

  In the invention described in claim 10, the plurality of partial display portions may be connected so as to have a bellows shape as a whole. For example, as described in claim 11, the first and second opposing portions The sides are parallel to the first direction, and the third and fourth sides facing each other have a quadrilateral shape inclined at a predetermined angle with respect to the second direction orthogonal to the first direction. The plurality of partial displays so that the first side of the partial display unit is connected to the second side of the other partial display unit and the third side is connected to the fourth side of the other partial display unit. The parts may be arranged and connected in a matrix. The above configuration corresponds to dividing the display surface of a single display unit into a plurality of partial display units following so-called Miura folding, and the configuration of each partial display unit is non-rectangular, so the configuration is complicated However, even when the display surface of the display unit is enlarged, a plurality of partial display units can be easily expanded and folded.

  Further, in the invention according to any one of claims 1 to 11, a storage space for a display unit is provided on the back side of the image output means when viewed from the irradiated surface side in the casing of the portable radiation image forming apparatus. For example, as described in claim 12, between the image output unit and the storage space (preferably a position on the back side of the image output unit and adjacent to the image output unit as viewed from the irradiated surface side). Is preferably provided with a sheet-like radiation absorbing member. As a result, radiation irradiated on the irradiated surface of the portable radiographic image forming apparatus and transmitted through the image output means is absorbed by the radiation absorbing member, thereby reducing the radiation emitted and scattered from the back surface of the irradiated surface. At the same time, it is possible to suppress deterioration of the display unit stored in the storage space due to radiation.

  As described above, the present invention is provided with an image output means that detects radiation that has passed through the subject and has been irradiated onto the irradiated surface of the housing, and outputs radiation image data that represents the distribution of the radiation dose. Since the portable radiographic image forming apparatus is provided with a display unit that is integrated with the housing, the display surface can be developed outside the housing, and can be stored in the housing, information such as a radiation image can be displayed. It has the outstanding effect that it can implement | achieve without causing a fall of a handleability or portability.

  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 radiation 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 an "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, and the back surface of the radiation detector 76 (image output means) as viewed from the irradiated surface side 72. A lead sheet 78 is disposed on the side and adjacent to the radiation detector 76. 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 having 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, but 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 the opening, and the display unit 120 is slid (moved) in the storage unit 122 so that the entire display unit 120 is placed in the storage unit 122. The storage position (the position in the state shown in FIGS. 5A and 6A) to be stored and most of the display unit 120 expands outside the housing 70, and the display surface is out of the housing 70. It is movable between a displayable position that is exposed to the side where the handle is provided (the state shown in FIG. 6C).

  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 applied with a pressing force in the direction of the storage unit 122 or a tensile force in the direction outside the housing 70 by a photographer (radiologist) who holds the pair of gripping units 128. As a result, the slide position is moved to the storage position or displayable position. Note that, 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 outside the housing 70 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, and the display unit 120 is integrated with the housing 70.

  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 corresponds to the radiation absorbing member according to claim 12, and the back scattering of radiation can be absorbed and reduced by the lead sheet 78. Further, the lead sheet 78 is displayed in a state of being stored in the storage unit 122. Radiation deterioration of the part 120 can also be suppressed. 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 (more specifically, the display unit described in claims 2, 3, 5, and 6), and the handle unit 124 corresponds to the handle unit described in claim 2. The gripping portions 128 respectively correspond to the gripping portions described in claim 3.

  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. 1, an individual capacitor 94 having a storage capacitor 88 for storing charges generated in the photoelectric conversion layer and a TFT 90 for reading out the charges 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, the cassette control unit 106 is connected with a display unit 120, an input unit 108, a drawer sensor 110, and a wireless communication unit 112.

  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. The drawer sensor 110 is a sensor that is provided in the storage unit 122 and detects whether or not the display unit 120 has been pulled out from the storage unit 122, and a detection result by the drawer sensor 110 is also input to the cassette control unit 106. 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 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 the position 60, another imaging room, an operating room, or a radiographic imaging device When the electronic cassette 22 is taken out of the radiation imaging room 42 for use in radiography in a vehicle equipped with the display unit 120, the display unit 120 is stored in the storage unit 122 in the housing 70 so that the display unit 120 is It is possible to prevent the electronic cassette 22 from being obstructed.

  Further, the electronic cassette 22 according to the first embodiment can expand the display surface of the display unit 120 to the outside of the housing 70 by pulling out the display unit 120 from the storage unit 122 in the housing 70, and the storage unit. The drawing of the display unit 120 from 122 is limited to a displayable position shown in FIG. 6C by a stopper (not shown), and the display unit 120 is integrated with the housing 70. Thus, even when the electronic cassette 22 is moved / positioned to a desired position, the display unit 120 is pulled out from the storage unit 122 to a displayable position, and the display surface of the display unit 120 is expanded outside the housing 70. The unit 120 is supported by the housing 70 and is maintained in the positional relationship shown in FIG. 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 display surface of the display unit 120 is unfolded outside the housing 70, the patient as a subject is positioned at a position indicated by a broken line in FIG. 5 with respect to the housing 70 of the electronic cassette 22. In addition, 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 imaging condition information representing imaging conditions in radiography to be performed from now on when imaging radiographic images. 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) checks the radiographing site, 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 / positioned to a position (position 58 or position 60), the name is confirmed with respect to the patient himself / herself to be photographed, and the patient to be photographed is positioned according to the posture at the time of photographing (position 48 or position 50). A series of preparatory work such as fine adjustment of the position of the radiation source 30 is performed as necessary. 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, if the patient moves during radiographic image capture and the subject is blurred on the radiographic image, it is necessary to perform radiographing again. It is necessary to confirm. In addition, when taking a radiographic image of the same part of the same patient in the past, the photographer refers to the radiographic image taken in the past to facilitate the interpretation of the radiographic image by the doctor. 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.

  Although the confirmation of the captured radiographic image, the reference of the radiographic image captured in the past, the change of the imaging posture and the driving condition of the radiation tube can be performed by operating the console 26, the console 26 Since it is generally installed outside the radiography room 42 (for example, another room adjacent to the radiography room 42), in the above case, the radiographer is in the middle of preparation work or every time imaging is performed. 42 and the installation location of the console 26 need to be reciprocated, and there is a problem that the work efficiency is very complicated and poor. 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.

  In order to solve these problems, the electronic cassette 22 according to the present embodiment is provided with a display unit 120, which confirms a captured radiographic image, references a radiographic image captured in the past, an imaging posture and radiation. When the tube driving condition is changed or there is a possibility, the photographer holds the grip portion 128, pulls out the display portion 120 from the housing 70 (the storage portion 122) of the electronic cassette 22, and the display portion 120. The display surface is expanded outside the housing 70. When this operation is performed, it is detected by the drawer sensor 110 that the display unit 120 has been pulled out, and using this as a trigger, the cassette controller 106 of the electronic cassette 22 performs the information display process shown in FIG.

  In this information display process, first, in step 300, various types of information to be displayed on the display unit 120 (for example, patient ID and name of a patient to be imaged, imaging region, imaging posture, radiation tube voltage, 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. In the next step 302, it is determined whether or not any information has been received from another device. When determination is denied, it transfers to step 304, 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 process proceeds to step 306, where it is determined 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 also negative, the process returns to step 302, and steps 302 to 306 are repeated until any determination is affirmed.

  When the console 26 receives information requesting transmission of RIS information from the electronic cassette 22, it reads information related to imaging to be performed from the storage unit 66 </ b> C, edits the read information as RIS information, and transmits it via the wireless communication unit 59. Transmit to the electronic cassette 22. When the RIS information is received by the wireless communication unit 112 of the electronic cassette 22 and input to the cassette control unit 106, the determination in step 302 is affirmed and the process proceeds to step 308. In step 308, the type of information received is determined. Branch off. When the received information is the RIS information received from the console 26, the process proceeds from step 308 to step 310, and first the RIS information received from the console 26 is stored in the memory 10B.

  In the next step 312, 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 region, 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 input by a photographer (radiation imaging technician) and a correction instruction can be input. Thus, it is possible to grasp the contents of radiographic image capturing to be performed.

  In addition, since the patient ID and name are displayed on the above screen, for example, the name of the patient to be imaged is confirmed by confirming the name with the patient and comparing the confirmed name with the name displayed on the screen. Whether or not there is a difference can be surely 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.

  In the next step 314, information for requesting data of related radiographic images captured in the past is generated, and the patient ID and the imaging region included in the received RIS information are added to the generated information and transmitted to the console 26. By doing this, the console 26 is requested to transfer data of radiographic images that have been imaged in the past and that have the same patient and imaged part as the current image. If the process of step 314 is performed, it will return to step 302 and will repeat step 302-step 306.

  Upon receiving the above information from the electronic cassette 22, the console 26 transfers the received information to the RIS server 14 to request the RIS server 14 for data of related radiographic images taken in the past, and the RIS server 14 The RIS database is searched using the patient ID and the imaging region added to the information received from the console 26 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 radiographic image data is received by the electronic cassette 22, the determination in step 302 of the information display process (FIG. 7) is affirmed and the process proceeds to step 308. The received information is the radiographic image received from the console 26. If it is data, the process branches from step 308 to step 316. In step 316, the radiographic image data received from the console 26 is stored in the memory 106B. In step 318, based on the data received from the console 26, the radiographic image represented by the data (the radiographed image captured in the past with the same imaging and patient and imaging site) is displayed on the display unit 120. Return to 302.

  By the above processing, the photographer can grasp the grasping range and the like when photographing the same photographing part of the same patient in the past by referring to the radiation image displayed on the display unit 120. It is possible to adjust the imaging range in the current imaging so as to match the imaging range as much as possible 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 316 and 318 is not performed, and the radiographic image captured in the past and related to the current imaging is not displayed. In addition, when the RIS server 14 receives an imaging request from the terminal device 12, the RIS server 14 determines whether or not there is a radiographic image captured in the past and related to the current imaging, which corresponds to the result of the determination. The image presence / absence information to be transmitted is added to the information transmitted from the RIS server 14 to the console 26, and the image presence / absence information is also added to the RIS information transmitted from the console 26 to the electronic cassette 22. Based on the image presence / absence information added to the RIS information received from H.26, the radiographic image data is requested only when there is a radiographic image captured in the past and related to the current imaging (in step 314). Process).

  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 imaging conditions such as the posture at the time of imaging, the tube voltage of the radiation tube, and the tube current are set. If information for instructing correction is input, the determination in step 304 is affirmed and the process proceeds to step 326, where it is determined whether or not the input information is information for instructing correction of imaging conditions. In this case, the determination is affirmed, the process proceeds to step 328, 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 330, the corrected RIS information is transmitted to the console 26. In the next step 332, 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 302, and steps 302 to 306 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. If the determination in step 302 is affirmed and the process proceeds to step 308, and if the received information is an exposure instruction input notification received from the radiation generation apparatus 20, the process branches from step 308 to step 320. 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 320, at the timing when the emission of radiation from the radiation source 30 is completed, 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 for readout of charges from the radiation detector 76, and the readout of charges from the radiation detector 76 is performed as described above. Is performed in accordance with the reading conditions specified by.

  In the next step 322, the radiation image (the radiation image obtained by the current imaging) represented by the image data stored in the image memory 104 in step 320 is displayed on the display unit 120. 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. The radiographic image whose data is stored in the image memory 104 is not limited to being displayed on the display unit 120 as it is. For example, various image processing (for example, noise superimposed on the image data is removed from the image data). 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 the like. Good.

  In the next step 324, 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 324 is completed, the process returns to step 302, and steps 302 to 306 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 including a touch panel to input information indicating the end of the radiographic image confirmation. In this case, the determination in step 304 is affirmed, the determination in step 326 is denied, and the determination in step 332 is affirmed. Then, the process proceeds to step 334, and the console 26 transmits RIS information corresponding to the next imaging to be performed. And return to step 302. Then, by receiving the RIS information transmitted 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 the radiographic imaging scheduled for that day is all completed, the photographer holds the grip 128 and presses the display unit 120 so that the housing of the electronic cassette 22 70 (the storage part 122) is stored. When this operation is performed, it is detected by the drawer sensor 110 that the display unit 120 has been accommodated, and the determination in step 306 is affirmed, whereby the information display process described above is terminated.

  In the first embodiment, the mode in which the slide movement of the display unit 120 is performed by the slide movement of 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. 8 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. 8A). 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 perpendicular to the insertion direction on the tip 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 a bracket 136 (see FIGS. 8C and 8D). The bracket 136 is integrated with the display unit 134 and slidably moves in the storage unit 122. The bracket 136 is configured to slide the display unit 134 and the bracket 136 in the direction of pulling out from the storage unit 122, as shown in FIG. A stopper (not shown) for limiting to the position shown in (D) (displayable position) is attached. The stopper prevents the entire display unit 134 from being detached from the storage unit 122, and the display unit 134 is integrated with the housing 70.

  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 an urging 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 D in FIG. 8). Thus, when the display unit 134 is pulled out from the storage unit 122 to the displayable position shown in FIG. 8C, as in a so-called in-dash type display in which the display can be stored in the dashboard in the in-vehicle navigation device, the energizing is performed. Due to the urging force of the means, the display unit 134 is rotated to the position shown in FIG. 8D (the display surface is approximately along the direction orthogonal to the irradiated surface 72), and the display surface is moved from the side of the electronic cassette 22. It will be in a state where it is easily visible.

  Note that storing the display unit 134 in the storage unit 122 from this state means that the handle unit 124 is gripped and the display unit 134 is rotated to a position where the display surface of the display unit 134 faces downward. This is done by pressing the display unit 134 in the direction of insertion into 122. 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 (more specifically, the display unit described in claims 2, 3, 5 to 7), and the handle unit 124 includes the handle unit described in claim 2, It corresponds to each of the grip portions described in claims 3 and 4. The bracket 136 corresponds to the support mechanism described in claim 7, and the urging means corresponds to the rotation means described in claim 7.

  Next, the operation of the second embodiment will be described. Since the electronic cassette 22 according to the second embodiment can store the display unit 134 in the storage unit 122 in the housing 70, when the electronic cassette 22 is moved / positioned to the position 58 or the position 60, other image capturing is performed. When the electronic cassette 22 is taken out of the radiation imaging room 42 for use in radiography in a room, operating room, or vehicle equipped with a radiographic imaging device, the display unit 134 is stored in the storage unit 122 in the housing 70. By doing so, it is possible to prevent the display unit 134 from obstructing the movement of the electronic cassette 22.

  Further, the electronic cassette 22 according to the second embodiment is unfolded so that the display surface is easily visible from the side of the electronic cassette 22 by pulling out the display unit 134 from the storage unit 122 in the housing 70 to a displayable position. The display unit 134 is rotated so as to be in the closed state, and the stopper 70 (not shown) prevents the casing 70 and the display unit 134 of the electronic cassette 22 from being separated, and the display unit 134 is integrated with the casing 70. Has been. Thereby, after moving and positioning the electronic cassette 22 to a desired position, the display unit 134 is pulled out from the storage unit 122 to a displayable position, and the display unit is displayed up to a position approximately along the direction orthogonal to the irradiated surface 72. Even in a state in which 134 is rotated, the display unit 134 is supported by the housing 70 and is maintained in the positional relationship shown in FIG. Therefore, a support mechanism or the like for supporting the display unit 134 is unnecessary, and it is possible to avoid a decrease in handling property and portability of the electronic cassette 22 by providing the display unit 134.

  Further, by unfolding the display surface of the display unit 134 outside the housing 70, the patient as a subject is located at a position indicated by a broken line in FIG. 5 with respect to the housing 70 of the electronic cassette 22. In addition, the display surface of the display unit 134 can be prevented from being in contact with the patient's body or the display unit 134 can be prevented from being hidden by the patient's body. The photographer can surely view information such as the displayed radiation image.

[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. 9 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 therethrough. In addition, in the state where the entire display unit 140 is stored in the storage unit 122 (the state shown in FIG. 9A), one end of the display unit 140 along the longitudinal direction of the opening 126 is a surface to be irradiated. 72 is supported by the housing 70 so as to be rotatable about an axis along a direction orthogonal to the direction 72.

  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. Thereby, the display unit 140 is in a state where the entire display unit 140 is stored in the storage unit 122 (a state shown in FIG. 9A) and a state where the display surface is unfolded and exposed outside the housing 70. (The state shown in FIG. 9C) can be rotated and slid. Further, in the state shown in FIG. 9A, 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.

  In the third embodiment, the lead sheet 130 may be affixed to the back surface of the display unit 140 or 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 (only in the arc-shaped region) as 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 a region of the bottom surface of the storage unit 122 excluding the arc-shaped region corresponding to the display unit 140. The lead sheet 130 is not essential because it is provided for the purpose of assisting in reducing absorption of backscattering of radiation by the lead sheet 78, and the lead sheet 130 can be omitted.

  As shown in FIG. 9 (particularly FIG. 9C), 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 area 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 display means according to the present invention (more specifically, display means according to claims 2, 3 and 8).

  Next, the operation of the third embodiment will be described. Since the electronic cassette 22 according to the third embodiment can store the display unit 140 in the storage unit 122 in the housing 70, when the electronic cassette 22 is moved / positioned to the position 58 or the position 60, other image capturing is performed. When the electronic cassette 22 is taken out of the radiation imaging room 42 for use in radiography in a room, operating room, or vehicle equipped with a radiographic imaging device, the display unit 140 is stored in the storage unit 122 in the housing 70. By doing so, it is possible to prevent the display unit 140 from obstructing the movement of the electronic cassette 22.

  Further, in the electronic cassette 22 according to the third embodiment, the display unit 140 is rotatably supported by the housing 70, the display unit 140 is integrated with the housing 70, and the display unit 140 is rotated. When the display unit 140 is moved (rotated and slid) and pulled out from the storage unit 122 to the displayable position, further pulling of the display unit 140 is prevented by a stopper (not shown). Thus, even after the electronic cassette 22 is moved / positioned to a desired position, the display unit 140 is supported by the housing 70 even when the display unit 140 is pulled out from the storage unit 122 to the displayable position. On the other hand, the positional relationship shown in FIG. Therefore, a support mechanism or the like for supporting the display unit 140 is unnecessary, and it is possible to avoid the handling property and portability of the electronic cassette 22 from being reduced by providing the display unit 140.

  In addition, by unfolding the display surface of the display unit 140 outside the housing 70, the patient as a subject is located at a position indicated by a broken line in FIG. 5 with respect to the housing 70 of the electronic cassette 22. In addition, the display surface of the display unit 140 can be prevented from being in contact with the patient's body, or the display surface of the display unit 140 can be prevented from being hidden by the patient's body. The photographer can surely view information such as the displayed radiation image.

[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. 10 shows (a part of) an electronic cassette 22 according to the fourth embodiment. As shown in FIGS. 10B and 10C, 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) that can store the display unit 146 and the winding shaft 148 in a state of being wound around the winding shaft 148 is provided. The winding shaft 148 is disposed in the storage unit 150 and is rotatably supported by the housing 70. Although not shown, the storage unit 150 includes 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 unit, 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 winding 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 where the handle portion 124 is attached. 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 fourth embodiment, the grip portion 154 is gripped, the entire amount of the display portion 146 is pulled out from the winding shaft 148 against the rotational force of the rotation mechanism, and the rotation of the winding shaft 148 by the rotation mechanism is caused by the latch mechanism. By being in the blocked state, the display surface of the display unit 146 is in a state of being developed and exposed outside the housing 70 (see FIG. 10C). Further, when the winding shaft 148 is further pulled through 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 146 is wound up. When the winding shaft 148 is rotated in the direction by the rotation mechanism, the display unit 146 is wound around the winding shaft 148 and stored in the storage unit 150 (see FIG. 10A).

  The display unit 146 corresponds to display means according to the present invention (more specifically, display means according to claims 2, 3, and 9). Further, in the fourth embodiment, the lead sheet 130 is omitted, and the function of reducing absorption of radiation backscattering is realized by the lead sheet 78.

  Next, the operation of the fourth embodiment will be described. Since the electronic cassette 22 according to the fourth embodiment can store the display unit 146 in the storage unit 150 in the housing 70, when the electronic cassette 22 is moved / positioned to the position 58 or the position 60, other image capturing is performed. When taking out the electronic cassette 22 from the radiation imaging room 42 for use in radiography in a room, operating room, or vehicle equipped with a radiographic imaging device, the display unit 146 is stored in the storage unit 150 in the housing 70. By doing so, it is possible to prevent the display unit 146 from obstructing the movement of the electronic cassette 22.

  In the electronic cassette 22 according to the fourth embodiment, the winding shaft 148 to which one end of the display unit 146 is attached is rotatably supported by the housing 70, and the display unit 146 is integrated with the housing 70. When the entire amount of the display unit 146 is pulled out from the winding shaft 148, the rotation of the winding shaft 148 by the rotation mechanism is blocked by the latch mechanism. Accordingly, when the entire amount of the display unit 146 is pulled out from the take-up shaft 148 after the electronic cassette 22 is moved / positioned to a desired position, the display unit 146 has flexibility. Is hanging from the housing 70 of the electronic cassette 22, but information such as an image displayed on the display surface of the display unit 146 can be confirmed even in this state. Therefore, a support mechanism or the like for supporting the display unit 146 is unnecessary, and it is possible to avoid the handling property and portability of the electronic cassette 22 from being reduced by providing the display unit 146.

  Further, by unfolding the display surface of the display unit 146 outside the housing 70, the patient as a subject is positioned at a position indicated by a broken line in FIG. 5 with respect to the housing 70 of the electronic cassette 22. In addition, the display surface of the display unit 146 can be prevented from being in contact with the patient's body or the display surface of the display unit 146 can be prevented from being hidden by the patient's body. The photographer can surely view information such as the displayed radiation image.

[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. 11 shows (a part of) an electronic cassette 22 according to the fifth embodiment. As shown in FIG. 11C, the display unit 160 provided in the electronic cassette 22 according to the fifth embodiment has a flat surface, and a plurality of partial display units 162 each made up of a display device such as an LCD are approximately surface-shaped. It is configured to be unfoldable and foldable so as to be united. As shown in FIG. 12, each partial display unit 162 includes first and second opposing sides that are parallel to the first direction, and third and fourth opposing sides that are in 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.

  The individual partial display portions 162 are connected by hinges and flexible electrical wirings are interposed, and a plurality of partial display portions 162 are received by signals transmitted through the electrical wirings. Can be displayed on almost the entire surface of the display unit 160 in a state where the image is expanded so as to be approximately flush with each other. 11 and 12 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.

  The shape and arrangement of the individual partial display units 162 described above correspond to dividing the display surface of a single display unit 160 into a plurality of partial display units 162 following so-called Miura folding. In the fifth embodiment, since the shape of each partial display unit 162 is non-rectangular, there is a disadvantage that a display device dedicated to the partial display unit 162 must be developed and manufactured. A single and specific partial display unit 162 (a state in which the plurality of partial display units 162 are folded (the state shown in FIGS. 11A and 11B)) is used to expand and fold the connected partial display units 162. Thus, it is possible to perform only by applying a force in a certain direction to the partial display portion 162) positioned in the uppermost layer, and the plurality of partial display portions 162 can be easily expanded and folded. 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 capable of storing 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). 11 (A) and 11 (B) show the rotation of the display unit 160 in a state where the plurality of partial display units 162 are deployed, and FIG. 12 (A) shows the rotation of the display unit 160 in a state where a plurality of partial display units 162 are developed. To (C)). In the state where the plurality of partial display portions 162 are folded, the display portion 160 is in a state where it is stored in the storage portion 166 as shown in FIG. As shown in FIG. 11B, when the plurality of partial display portions 162 are in a state of being pulled out from the storage portion 166 and are rotated around the rotation shaft 168, as shown in FIG. A) As shown in FIG. 12C, the display surface of the display unit 160 expands to the side of the housing 70 where the handle portion 124 is attached, or as shown in FIG. The display surface 160 is in a state of being developed to the side surface adjacent to the side surface of the housing 70 where the handle portion 124 is attached, or an intermediate state as shown in FIG.

  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.

  Next, the operation of the fifth embodiment will be described. In the electronic cassette 22 according to the fifth embodiment, the display unit 160 can be stored in the storage unit 166 in the housing 70. Therefore, when the electronic cassette 22 is moved / positioned to the position 58 or the position 60, other photographing is performed. When the electronic cassette 22 is taken out of the radiation imaging room 42 for use in radiography in a room, operating room, or vehicle equipped with a radiographic imaging device, the display unit 160 is stored in the storage unit 166 in the housing 70. By doing so, it is possible to prevent the display unit 160 from obstructing the movement of the electronic cassette 22.

  In the electronic cassette 22 according to the fifth embodiment, the specific partial display unit 162 constituting the display unit 160 is supported by the housing 70 via the rotation member 170 and the rotation shaft 168, and the display unit 160 is It is integrated with the housing 70. Thereby, after the electronic cassette 22 is moved and positioned to a desired position, the display unit 160 is supported by the housing 70 even when the display unit 160 is pulled out from the storage unit 166 and the plurality of partial display units 162 are expanded. Thus, the positional relationship shown in FIG. 11C and FIGS. 12A to 12C is maintained with respect to the housing 70. Therefore, a support mechanism or the like that supports the display unit 160 is not necessary, and the provision of the display unit 160 can prevent the handling property and portability of the electronic cassette 22 from being lowered.

  Further, when the display surface of the display unit 160 is unfolded outside the housing 70, the patient as a subject is located at a position indicated by a broken line in FIG. 5 with respect to the housing 70 of the electronic cassette 22. In addition, it is possible to prevent the display surface of the display unit 160 from being in contact with the patient's body or the display surface of the display unit 160 from being hidden by the patient's body. The photographer can surely view information such as the displayed radiation image.

  In the above description, the radiographic image captured in the past as a radiographic image related to the current radiographing has been described in the past. 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.

  In the above description, the display surface of the display unit has been described as being expanded to a space outside the specific side surface where the handle portion 124 is provided out of the housing 70 of the electronic cassette 22. The invention according to claim 1 is not limited, and the scope of the invention includes a mode in which the display surface of the display unit expands to a space outside the surface of the electronic cassette 22 other than the specific side surface. It is out.

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 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 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.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Radiation information system 12 Terminal apparatus 14 RIS server 18 Radiation imaging system 20 Radiation generation apparatus 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 unit 110 Drawer sensor 120 Display unit 122 Storage unit 124 Handle unit 128 Grip unit 134 Display unit 140 Display unit 142 Grip unit 146 Display unit 148 Take-up shaft 150 Storage unit 154 Grip unit 160 Display unit 162 Partial display unit

Claims (12)

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 that is integrated with the housing, the display surface can be developed outside the housing, and can be stored in the housing;
Display control means for displaying arbitrary information including a radiation image whose data is stored in the storage means on a display surface of the display means;
A portable radiographic image forming apparatus. A handle portion for gripping the case when the case is moved is provided on a side surface in contact with the irradiated surface of the case,
The portable radiographic image forming apparatus according to claim 1, wherein the display unit is disposed so that the display surface is developed to a side of the outside of the housing where the handle is provided.   3. The display device according to claim 1 or 2, wherein the display means is attached with a gripping part protruding from the housing in a direction in which the display surface is unfolded in a state where the display means is housed in the housing. Portable radiographic image forming apparatus.   The portable radiographic image forming apparatus according to claim 3, wherein the gripping unit is configured to be usable as a handle for gripping when the casing is moved. A storage space is provided in the housing on the back side of the image output means as seen from the irradiated surface side,
The portable radiographic image conversion apparatus according to claim 1, wherein the display unit is stored in the storage space in the housing.   The display means includes a display unit which is flat and has the display surface and is supported by the casing so as to be slidable with respect to the casing. The display unit is slid in a direction to be pulled out from the casing. The display surface is thus unfolded outside the casing, and the display unit is accommodated in the casing by being slid in a direction of insertion into the casing. The portable radiographic image forming apparatus described. The display means includes
A support mechanism that rotatably supports an end portion of the display unit around an axis perpendicular to a direction in which the display unit is pulled out from the housing in a state where the display unit is pulled out from the housing;
A rotating means for rotating the display unit around the axis in a state where the display unit is pulled out from the housing;
The portable radiation image forming apparatus according to claim 6, further comprising:   The display means includes a display unit that is flat and has a display surface, and has a display unit supported on the casing so that the display unit is rotatable with respect to the casing. The display unit is pulled out from the casing. The display surface is developed outside the casing by being rotated, and the display unit is stored in the casing by being rotated in a direction of insertion into the casing. The portable radiation image forming apparatus according to claim 1.   The display means includes a display unit provided with the display surface in the form of a flexible sheet, and a winding shaft provided in the housing and to which one end of the display unit is attached. The display surface in a state of being wound around the take-up shaft in a layered manner is pulled out from the inside of the housing, so that the display surface is developed outside the housing, and the take-up shaft is rotated in the direction of winding the display portion. The portable radiation image forming apparatus according to any one of claims 1 to 4, wherein the portable radiation image forming apparatus is housed in the housing.   The display means is configured such that a plurality of flat partial display portions are connected so that they can be expanded and folded so as to be approximately flush with each other, and the plurality of partial display portions are stored in the housing in a folded state. Any one partial display in a predetermined direction in which the plurality of partial display units are expanded after the display unit in a state in which the plurality of partial display units are folded is pulled out of the housing. When the portion is pulled out, the display surface including the plurality of partial display portions is unfolded outside the housing, and after the plurality of partial display portions are folded, the plurality of partial display portions are folded. The portable radiation image forming apparatus according to any one of claims 1 to 4, wherein the display unit is housed in the housing by housing the display unit in the housing.   In the plurality of partial display portions, the first and second sides facing each other are parallel to the first direction, and the third and fourth sides facing each other are in a second direction orthogonal to the first direction. The display unit has a quadrilateral shape inclined at a predetermined angle, and the first side of each partial display unit is connected to the second side of another partial display unit, and the third side is The portable radiation image forming apparatus according to claim 10, wherein the plurality of partial display portions are arranged and connected in a matrix so as to be connected to the fourth side of another partial display portion.   In the housing, a storage space for the display unit is provided on the back side of the image output means when viewed from the irradiated surface side, and a sheet-like radiation is provided between the image output means and the storage space. The portable radiation image forming apparatus according to claim 1, wherein an absorption member is provided.

Images