JP2011160913A - Movable radiographic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To take radiation images of a plurality of subjects with one cassette while taking hygienic aspect into consideration. <P>SOLUTION: A storing bag P is set at a cassette storing section 105 of a movable radiographic apparatus 1, and the movable radiographic apparatus 1 is moved while the cassette CA is inserted within the storage bag P. When taking a radiation image, the cassette CA is removed from the cassette storing section 105 while being inserted in the storage bag P, and a radiation image is taken while the cassette CA is stored in the storage bag P. An opening OP of the storage bag P set at the cassette storing section 105 is opened by opening an open/close door 104. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile radiography apparatus.

  Move to the patient's bedside to capture radiographic images for patients who are unable to capture radiographic images by moving to a radiography room in a hospital, such as severely ill or bedridden patients. Mobile radiography apparatuses are known. As a mobile radiography apparatus, there exists a thing described in patent document 1, for example.

  The mobile radiography apparatus described in Patent Document 1 (corresponding to the “X-ray imaging apparatus for round trip” in Patent Document 1) includes an X-ray imaging apparatus main body and a portable terminal for operating the apparatus main body. The main body of the X-ray imaging apparatus is installed on a cart where an X-ray tube that irradiates the subject with X-rays, a cassette storage box that can store a plurality of film cassettes and CR cassettes, etc., can be moved either electrically or manually. It becomes the composition.

  When a plurality of subjects are photographed by round-trips, a plurality of film cassettes or CR cassettes are housed in a cassette housing box and the mobile radiation imaging apparatus is moved. When moving to the subject, one unfilmed film cassette is taken out from the cassette storage box, the film cassette is inserted between the subject and the bed, and the film cassette is set at the photographing position. Then, radiation is emitted from the X-ray tube, the film cassette is exposed, and radiation imaging is performed. When the radiography is completed, the film cassette is stored again in the cassette storage box, the mobile radiography apparatus is moved to the next subject, and the radiography is performed by repeating the same operation. When completed, the cassette that has been photographed is moved to the place where the automatic processor or CR cassette reader is installed, and an analog or digital image is generated.

Japanese Patent Laid-Open No. 2003-210446

  By the way, in recent years, digital radiography apparatuses have come to be used, and a detection element arranged two-dimensionally on a substrate is built in and an electric signal corresponding to the amount of radiation irradiated to the detection element is generated. There is a radiographic apparatus using an FPD cassette for output. The FPD cassette has a built-in memory, and a plurality of photographings can be continuously executed with one FPD cassette. Therefore, if an FPD cassette is used instead of using a film cassette or a CR cassette in a mobile radiography apparatus, a plurality of cassettes can be stored as disclosed in Patent Document 1 when a plurality of subjects are photographed by round visits. Since the mobile radiography apparatus can be moved by storing one FPD cassette, it is effective in reducing the space of the cassette storage box and reducing the weight of the entire mobile radiography apparatus including the cassette. is there.

  However, when a plurality of subjects are imaged using a mobile radiography apparatus containing a single FPD cassette, the same FPD cassette is directly addressed to the plurality of subjects. As a result, there is a possibility of transmission between subjects through the FPD cassette, which is not preferable from the viewpoint of hygiene.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a mobile radiographic apparatus capable of imaging radiographic images of a plurality of subjects with a single cassette while taking hygiene into consideration.

In order to achieve the above object, a mobile radiography apparatus according to the present invention comprises:
at least,
A radiation irradiation unit for irradiating the subject with radiation;
A cassette housing portion that houses a two-dimensionally arranged detection element on the substrate and stores a portable cassette that outputs an electrical signal corresponding to the amount of radiation irradiated to the detection element;
A mobile radiography apparatus that moves to an imaging location and captures a radiographic image,
An opening and closing door for opening and closing the storage opening of the cassette storage unit;
A storage bag that is set in the cassette storage section and into which the cassette is inserted through an opening provided at one end;
An engaging portion that engages with a part of the storage bag by the closing operation of the opening and closing door and expands the opening by the opening operation of the opening and closing door while maintaining the engagement with a part of the storage bag;
A release portion that releases the engagement between the storage bag and the engagement portion, and allows the cassette to be taken out from the cassette storage portion in a state of being stored in the storage bag;
It is characterized by having.

  According to the mobile radiography apparatus according to the present invention, radiographic images of a plurality of subjects can be taken with a single cassette while considering hygiene.

It is the schematic which shows a mobile type radiography apparatus. It is a perspective view which shows the upper surface of an apparatus main body part. It is a block diagram which shows the typical control structure of an apparatus main body part and a portable terminal. It is explanatory drawing which shows the relationship between an opening-and-closing door and a cassette accommodating part. It is a perspective view which shows a storage bag. It is explanatory drawing which shows the relationship between the support bar and the storage bag seen from the c direction in FIG. It is an expanded sectional view which shows the structure of a suction disk and a cancellation | release part. It is explanatory drawing which shows the state which the opening-and-closing door opened. It is a flowchart figure which shows the procedure which adjusts the position of the cassette with respect to a patient, and image | photographs a radiographic image.

[Outline of mobile radiography system]
FIG. 1 is a schematic view showing a mobile radiography apparatus according to the present invention.

  The mobile radiography apparatus 1 is an apparatus that captures radiographic images by moving between hospital rooms where a bedridden patient (subject) H is present. The mobile radiation imaging apparatus 1 mainly includes an apparatus main body 100 and a portable terminal 200 that can be attached to and detached from the apparatus main body 100. When capturing a radiation image, a portable FPD cassette CA (hereinafter simply referred to as a cassette) is used together with the mobile radiation imaging apparatus 1.

  The apparatus main body 100 mainly includes wheels 101A and 101B, a radiation irradiation unit 102, an operation display unit 103, an opening / closing door 104, a cassette storage unit 105, and the like.

  The wheels 101 </ b> A and 101 </ b> B are installed in the lower part of the apparatus main body 100, and the wheels 101 </ b> A and 101 </ b> B are rotated electrically or manually so that the mobile radiography apparatus 1 moves between hospital rooms where a plurality of patients H are present.

  The radiation irradiation unit 102 installed on the upper part of the apparatus main body 100 irradiates the patient H with radiation by operating the operation display unit 103 by the imaging technician. In addition, the position of the radiation irradiation unit 102 can be adjusted according to the purpose of imaging, such as height, inclination, etc., and the position of the radiation irradiation unit 102 is adjusted by the imaging engineer in the same manner as the operation of radiation irradiation. It is executed by operating 103 or directly by manual operation.

  The cassette CA is transported while being stored in the cassette storage unit 105 while the mobile radiation imaging apparatus 1 is moving, and is taken out of the cassette storage unit 105 when capturing a radiographic image, and is used to capture a region of interest (imaging) of the patient H. The area) and the bed BE.

  Although detailed description of the internal structure is omitted, the cassette CA is a portable cassette that incorporates detection elements arranged two-dimensionally on a substrate and outputs an electrical signal corresponding to the amount of radiation irradiated to the detection elements. is there. A storage unit is installed in the cassette CA, and a plurality of radiation images can be stored in the cassette CA by using one cassette CA. Accordingly, when radiographic images of a plurality of patients H are taken, it is only necessary to store one cassette CA and move the mobile radiographic apparatus 1, so that an existing mobile radiographic apparatus equipped with a film cassette or the like can be used. Spatial margin will be created in the cassette holder. When a new mobile radiography apparatus is designed, it is of course possible to save space in the cassette storage unit 105 and reduce the weight of the entire mobile radiography apparatus 1 including the cassette CA. It is.

  The size of the cassette CA is a size (15 mm + 1 mm and 15 mm-2 mm) that conforms to the standard (JIS Z 4905) for a conventional screen / film cassette (International standard corresponding to JIS Z 4905 is IEC 60406). Is). Therefore, the cassette CA can be used when moving a patient room and capturing radiographic images of a plurality of patients H as in the present embodiment, and is an existing imaging table used in a conventional screen / film cassette. It can also be used when setting and capturing radiographic images, and can be used in a wide range.

  The opening / closing door 104 installed on the side surface of the apparatus main body 100 is rotatable, and when the imaging technician inserts the cassette CA into the cassette storage unit 105, the opening / closing door 104 is rotated in the direction a shown in FIG. Then, the cassette CA is inserted from the storage opening formed in the upper part of the open / close door 104. After the photographer inserts the cassette CA into the cassette storage unit 105, the door 104 is rotated in the direction b shown in FIG. 1 to close the storage port.

  An operation display unit 103 is installed on the upper surface of the apparatus main body 100, and the portable terminal 200 is also detachably installed on the upper surface of the apparatus main body 100.

  FIG. 2 is a perspective view showing an upper surface of the apparatus main body 100.

  The operation display unit 103 installed on the upper surface of the apparatus main body unit 100 includes a monitor 103A and operation keys 103B. The monitor 103A displays the state of the apparatus main body 100, and in order to check whether the position of the cassette CA with respect to the patient H is appropriate, preview image data (for example, thinning out radiographic images) transmitted from the cassette CA is displayed. Data) is displayed. The operation key 103B is operated by an imaging engineer for adjusting the position of the radiation irradiation unit 102, irradiation conditions, and the like.

  The portable terminal 200 can be attached to and detached from the apparatus main body 100, and can be removed in the direction of the arrow shown in FIG. The mobile terminal 200 stores information on the patient H, information on the imaging order, and the like, and these information are displayed on the screen of the mobile terminal 200. While the mobile radiography apparatus 1 moves in the hospital room, the portable terminal 200 is mounted on the apparatus main body 100 and moves together with the apparatus main body 100. When a radiograph is taken in the hospital room, the radiographer uses the mobile terminal 200 to connect the mobile terminal 200. It is removed from the main body 100, and information on the patient H, information on the imaging order, etc. and the above-described preview image data are confirmed on the screen.

  FIG. 3 is a block diagram illustrating a typical control configuration of the apparatus main body 100 and the mobile terminal 200.

  Various operations of the apparatus main body 100 are controlled by the main body control unit SE1, and various operations of the portable terminal 200 are controlled by the terminal control unit SE2. The main body control unit SE1 and the terminal control unit SE2 are mainly configured by a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and read various control programs stored in the ROM. Are expanded in the RAM, and the operation of each unit is controlled.

  The main control configuration of the apparatus main body 100 is a main body control unit SE1, a radiation irradiation unit 102, an operation display unit 103, a main body storage unit 106, a main body power supply unit 107, an irradiation drive unit 108, and a main body communication unit 109.

  The main body storage unit 106 stores various control programs, and temporarily stores thinned data of radiographic images transmitted from the cassette CA through the main body communication unit 109 by radio.

  The main body power supply unit 107 supplies power to each unit of the apparatus main body unit 100 such as supplying power for radiation irradiation to the radiation irradiation unit 102. The main body power supply unit 107 is a charging power source, and is charged by a radiographer or the like before the mobile radiation imaging apparatus 1 moves and captures a radiographic image.

  The irradiation drive unit 108 adjusts the height, inclination, and the like of the radiation irradiation unit 102. Adjustment of the position of the radiation irradiation unit 102 is executed by the imaging engineer operating the operation display unit 103, and the main body control unit SE1 is operated by a predetermined program, and the irradiation driving unit 108 drives the radiation irradiation unit 102.

  The main body communication unit 109 communicates with the cassette CA wirelessly, and receives radiographic image data, radiographic image preview image data (for example, thinning data), offset correction dark image data, and the like from the cassette CA. Also, desired data such as preview image data can be transmitted / received to / from the terminal communication unit 204 of the portable terminal 200.

  The main control configuration of the portable terminal 200 is a terminal control unit SE2, a terminal storage unit 201, a terminal operation display unit 202, a terminal power supply unit 203, and a terminal communication unit 204.

  In a preparation stage before radiographic images of a plurality of patients H are taken, the portable terminal 200 transmits information such as the name of the patient H, a hospital room where the patient H is located, and the imaging sequence from the host computer (not shown) through the terminal communication unit 204. The received information is stored in the terminal storage unit 201.

  The terminal operation display unit 202 displays information stored in the terminal storage unit 201 when a radiographic image is captured, and the radiographer captures a radiographic image based on the displayed information.

  When the mobile terminal 200 is attached to the apparatus main body 100, power is supplied from the main body power supply unit 107 of the apparatus main body 100, but when the mobile terminal 200 is removed from the apparatus main body 100, each part of the mobile terminal 200 Is supplied with power from the terminal power supply unit 203.

  The terminal communication unit 204 can communicate with the host computer and wirelessly communicate with the main body communication unit 109 of the apparatus main body unit 100.

  Using the mobile radiography apparatus 1 having the structure described above, radiographic images of a plurality of patients H are taken with one cassette CA.

[Cassette storage]
Next, storage of the cassette CA by the storage bag P will be described.

  As described above, the mobile radiation imaging apparatus 1 stores one cassette CA in the cassette storage unit 105, and captures radiation images of a plurality of patients H using one cassette CA. If the cassette CA is directly addressed to the plurality of patients H when radiographic images of a plurality of patients H are taken, there is a possibility of transmission between patients through the cassette CA, which is not preferable from the viewpoint of hygiene.

  Therefore, the mobile radiation imaging apparatus 1 shown in the present embodiment captures a radiation image in a state where the cassette CA is stored in the flexible storage bag P made of a foil resin material such as disposable polyethylene. Then, when all the imaging for one patient is completed, the cassette CA is taken out from the used storage bag P, and the cassette CA is stored in a new storage bag P. Hereinafter, the structure for storing the cassette CA in the storage bag P will be described in detail.

  FIG. 4 is an explanatory diagram showing the relationship between the opening / closing door 104 and the cassette housing portion 105. In FIG. 4, the cassette storage unit 105 does not store the cassette CA, and a plurality of storage bags P are set.

  The cassette storage unit 105 mainly includes a support bar 105A, a separation claw 105B, and a back plate 105C, and the support bar 105A supports a plurality of storage bags P (three storage bags P in FIG. 4). .

  First, the structure of the storage bag P supported by the support rod 105A will be described. FIG. 5 is a perspective view showing the storage bag P. FIG.

  As shown in FIG. 5, one end P1 of the storage bag P is closed, and the other end P2 is movable in the direction of the arrow. When the end P2 moves, the opening OP for inserting the cassette CA opens. When the storage bag P is set in the cassette storage unit 105 and the open / close door 104 is closed (the state shown in FIG. 4), the opening OP of the storage bag P is closed.

  Two support holes P3 are formed on the upper and lower sides of the storage bag P, and the storage bag P is supported by the support rod 105A through the support hole P3 as will be described later.

  An adhesive portion P4 is provided around the opening OP. Usually, the surface of the adhesive part P4 is covered with release paper (not shown). After inserting the cassette CA into the storage bag P set in the cassette storage unit 105 and taking out the storage bag P together with the cassette CA from the cassette storage unit 105, the release paper is peeled off and the side surface X of the storage bag P is bent to store the storage bag. The adhesive portion P4 is bonded to the surface Y of P so as to close the opening OP. By providing the adhesive portion P4 around the opening OP, the opening OP can be easily closed.

  Next, the structure of the cassette storage unit 105 in which the storage bag P is set will be described.

  As shown in FIG. 4, a support bar (holding part) 105 </ b> A is installed on the upper part of the cassette storage part 105, and the support bar 105 </ b> A supports (holds) a plurality of storage bags P. FIG. 6 shows the relationship between the support bar 105A and the storage bag P as viewed from the direction c in FIG. As shown in FIG. 6, two support bars 105A are installed on the left and right, and the storage bag P is supported by the support bars 105A by passing the support holes P3 (see FIG. 5) of the storage bag P through the two support bars 105A. Supported by Since the support bar 105A can support a plurality of storage bags P, the cassette CA can be stored in a new storage bag P a plurality of times and replaced for each of a plurality of patients.

  A separation claw 105B (see FIG. 4) is installed on the opening / closing door 104 side with respect to the storage bag P supported by the support rod 105A. The separation claw 105 </ b> B separates one storage bag P closest to the opening / closing door 104 from among the plurality of storage bags P when the opening / closing door 104 is opened. When viewed from the open / close door 104 side, a part of the separation claw 105B interferes with the storage bag P as shown in FIG. When the storage bag P is set on the support bar 105A, the separation claw 105B is rotated in the direction of the arrow in FIG. 6 so as not to hinder the setting operation of the storage bag P, and is separated when the storage bag P is set. The claw 105B is returned to its original position.

  A back plate 105C is installed on the opposite side of the separation claw 105B across the storage bag P (see FIG. 4). The back plate 105 </ b> C moves the storage bag P so that the storage bag P does not escape to the opposite side of the suction plate 110 when the suction plate (engagement portion) 110 installed on the opening / closing door 104 contacts the storage bag P. Suppress.

  Next, the structure of the suction board 110 and the release part 120 installed in the open / close door 104 will be described.

  As described above, the opening / closing door 104 rotates in the directions a and b shown in FIG. 4, but the opening / closing door 104 is provided with the suction plate 110 and the release portion 120 (see FIG. 7). The suction disk 110 and the release unit 120 move with the rotation.

  FIG. 7 is an enlarged cross-sectional view showing the structure of the suction disk 110 and the release unit 120.

  A release unit 120 is embedded in the opening / closing door 104, and a suction disk 110 is attached to the end of the release unit 120. When the open / close door 104 is closed (the state shown in FIG. 4), the suction plate 110 comes into contact with a part of the storage bag P, and the suction plate 110 becomes a negative pressure, so that the suction plate 110 becomes a part of the storage bag P. Is sucked (engaged).

  As shown in FIG. 7, the release unit 120 mainly includes a release button 120A, a wall member 120B, an O-ring 120C, and a spring member 120D.

  A part of the release button 120A protrudes outside the opening / closing door 104 and is movable in the direction of the arrow shown in FIG. The release button 120A is pressed by the spring member 120D, and the release button 120A is in contact with the O-ring 120C by the pressing force of the spring member 120D. If the release button 120A and the O-ring 120C are in contact with the suction board 110 in contact with a part of the storage bag P, the suction board 110 and the inside of the release part 120 are sealed and become negative pressure. When 120A is pressed, the sealed state is released, and the suction between the suction disk 110 and the storage bag P is released.

  The structure of the storage bag P, the cassette storage unit 105, and the open / close door 105 has been described above. Next, a procedure for storing the cassette CA in the storage bag P will be described.

  As a preparation stage for moving the mobile radiation imaging apparatus 1 to capture a radiographic image, first, as shown in FIG. 4, a plurality of storage bags P are set in the cassette storage unit 105 and the open / close door 104 is closed. When the open / close door 104 is closed, the suction disk 110 installed on the open / close door 104 contacts the storage bag P closest to the open / close door 104. At this time, since the release button 120A is not pressed by the photographing engineer or the like, the inside of the suction board 110 becomes negative pressure, and the suction board 110 sucks the storage bag P.

  Next, in order to store the cassette CA in the cassette storage unit 105 of the mobile radiation imaging apparatus 1, the door 104 is opened by rotating the door 104 in the direction a shown in FIG. FIG. 8 shows a state where the open / close door 104 is opened. When the opening / closing door 104 is opened, the suction plate 107 moves while maintaining suction with the storage bag P, so that only one suctioned storage bag P among the plurality of storage bags P is pulled by the suction plate 107. Over the separation claw 105B, it moves in the d direction as shown in FIG. The opening OP of the storage bag P is widened by the movement of the suction plate 110.

  The cassette CA is inserted into the storage bag P with the opening OP of the storage bag P widened (direction e in FIG. 8). As a result, the storing operation of the cassette CA into the cassette storage unit 105 is completed, and the open / close door 104 is closed while the mobile radiation imaging apparatus 1 moves.

  When the mobile radiography apparatus 1 is moved to the patient H's room and a radiographic image is taken, the door 104 is opened again as shown in FIG. 8, and the release button 120A of the release unit 120 described in FIG. The suction of the suction board 110 to the storage bag P is released. Then, the cassette CA is taken out together with the storage bag P in a state where the cassette CA is stored in the storage bag P. After the removal, as described with reference to FIG. 5, the opening OP of the storage bag P is closed using the adhesive portion P4 of the storage bag P, and the patient CA and the bed BE are stored while the cassette CA is stored in the storage bag P. Insert in between and take a radiographic image. Since the cassette CA is stored in the storage bag P, the cassette CA does not contact the patient H directly.

  When the radiographic image capturing is completed, the imaging engineer opens the opening OP of the storage bag P, takes out the cassette CA, and the storage bag P is discarded as it is. When the opening / closing door 104 is opened from the closed state, the next storage bag P moves to the opening / closing door 104 side, and the opening OP of the moved storage bag P widens (see FIG. 8). The CA is inserted, the open / close door 104 is closed, and the mobile radiography apparatus 1 is moved to the next patient H. Such a procedure is repeated and radiographic images of a plurality of patients H are taken.

  As described above, the plurality of storage bags P are set in the cassette storage unit 105, the opening OP of the storage bag P is widened by opening the opening / closing door 104, and the cassette CA is inserted into the storage bag P. When taking out the cassette CA, the release button 120A is pressed to release the suction of the suction board 110, and the cassette CA is taken out while being stored in the storage bag P. Thereafter, a radiographic image is taken in a state where the cassette CA is stored in the storage bag P. When the imaging is completed, the cassette CA is taken out from the used storage bag P, and the cassette CA is inserted into the new storage bag P. If a radiographic image is taken with such a mobile radiographic imaging apparatus 1, radiographic images of a plurality of patients H can be taken with one cassette CA without directly addressing the cassette CA to a plurality of patients H. The surface is also good. Further, since it can be arranged in the holding space of the plurality of cassettes provided in the existing mobile radiography apparatus, the mobile radiography apparatus can be modified with the introduction of the cassette FPD.

  In the embodiment shown in FIG. 1, the cassette CA and the apparatus main body 100 are not connected by a cable, but mobile radiography in which the cassette CA and the apparatus main body 100 are connected by a cable to capture a radiographic image. Also in the apparatus, the cassette CA may be stored in the storage bag P.

[Imaging operation in mobile radiography system]
Next, a procedure for adjusting the position of the cassette CA with respect to the patient H and taking a radiographic image will be described.

  FIG. 9 is a flowchart showing a procedure for adjusting the position of the cassette CA with respect to the patient H and taking a radiation image.

  Although not shown in the flowchart of FIG. 9, as a preparation stage for moving the mobile radiation imaging apparatus 1 to capture a radiographic image, first, communication is performed between the portable terminal 200 and the host computer and stored in the host computer. The portable terminal 200 stores information such as the name of the patient H, the hospital room where the patient H is, and the imaging order. The radiographer moves the mobile radiography apparatus 1 based on the information stored in the portable terminal 200 so that radiographic images of a plurality of patients H are captured in a predetermined order.

  At the stage where preparation for taking a radiographic image is completed, the radiographer moves the mobile radiography apparatus 1 to the patient's room where the radiographic apparatus 1 is first taken. Then, the cassette CA stored in the cassette storage unit 105 is inserted between the patient H and the bed BE as shown in FIG. Thereafter, the position of the radiation irradiation unit 102 is adjusted manually or through the operation display unit 103, and a first radiation image is taken for the first patient H (step S1). The cassette CA is automatically activated when radiation is emitted from the radiation irradiating unit 102, executes a radiographic image reading operation, and stores the read radiographic image data in an internal storage unit.

  When the radiographic image capturing is completed, it is determined whether or not the position of the cassette CA with respect to the patient H has been adjusted (step S2). The determination operation in step S2 is executed based on a predetermined program by the main body control unit SE1 (see FIG. 3) of the apparatus main body unit 100 with reference to past operation history information. After the first photographing operation, since the position of the cassette CA has not been adjusted, the operation proceeds to step S3.

  In step S3, the thinned data created by thinning out the data of the radiographic image captured this time is transmitted from the cassette CA to the apparatus body 1 (step S2). The thinned-out data is one in which the radiographer can recognize the radiation image to some extent when displayed on the operation display unit 103, and the data amount of the thinned-out data is about 1/8 to 1 / 16th of the data of the official radiation image. is there.

  When receiving the thinning data, the apparatus body 1 displays a radiographic image based on the thinning data on the monitor 103A of the operation display unit 103, and determines whether or not the position of the cassette CA with respect to the patient H is OK (step S4). The actual determination in step S4 is performed by the imaging engineer. When the imaging engineer determines OK, the OK button of the operation display unit 103 is pressed, and when the determination is NG, the NG button of the operation display unit 103 is pressed. The apparatus main body 100 determines whether the position of the cassette CA is OK based on a signal based on a key operation on the operation display unit 103.

  If it is determined in step S4 that the position of the cassette CA with respect to the patient H is OK (step S4; Yes), it is determined whether the imaging of the patient H has been completed (step S6). If a radiographic image is to be captured, the process returns to step S1 to capture the radiographic image. Thereafter, since the position of the cassette CA is once determined to be OK in step S4, the position is already adjusted in step S2, and the process does not proceed to step S3. However, in order to confirm the radiographic image at the request of the radiographer, the process may proceed to step S3.

  On the other hand, when it is determined in step S4 that the position of the cassette CA with respect to the patient H is not OK (step S4; No), the cassette CA is reset (step S5), and a radiation image is taken again (step S1). In step S2, it is determined that the position of the cassette CA has not been adjusted (step S2; No), and the operations in steps S3 and S4 described above are executed, and the operation is repeated until the position of the cassette CA becomes OK. The radiographic image data taken when the position of the cassette CA is not OK is stored in the cassette CA as it is, and the radiographer stores the history information such as at which stage the extra radiographic image is stored. 200 is stored. In this way, when the imaging operation in the mobile radiation imaging apparatus 1 is completed and the radiographic image data stored in the cassette CA and the history information of the portable terminal 200 are taken up by the host computer, the cassette CA sequentially It is possible to accurately collate the radiographic image data with the patient H etc., such as which patient H the radiographic image data that has been stored is taken, and whether the position of the cassette CA has been adjusted. .

  If it is determined in step S6 that the imaging of the patient H has been completed (step S6; Yes), the imaging engineer determines whether there is another patient H that captures a radiographic image through the portable terminal 200 (step S7). When there is a patient to take an image (step S7; No), the mobile radiography apparatus 1 is moved in a state where the cassette CA is stored in the cassette storage unit 105 (step S8), and the process returns to step S1 and the next A radiographic image is taken for the patient H.

  As described above with reference to FIG. 9, an appropriate radiographic image can be captured by adjusting the position of the cassette CA and capturing a radiographic image. In addition, if thinning data is used when adjusting the position of the cassette CA, the time for data transmission from the cassette CA to the apparatus main body 100 can be suppressed, and the waiting time for the imaging technician or the like can be reduced. Further, by suppressing the data transmission time, for example, malfunction of a pacemaker used by the patient H due to radio wave interference can be suppressed.

  By the way, when the mobile radiation imaging apparatus 1 is moved and radiographic images of a plurality of patients H are acquired, the radiographic images are basically acquired based on the imaging order obtained by the portable terminal 200 from the host computer. There is a case where the patient H is away from the hospital room due to other medical examinations and the like, and there is a case where the imaging order may be changed depending on the situation.

  Therefore, in such a case, the shooting engineer changes the shooting order through the portable terminal 200, and the changed shooting order is stored in the storage unit of the portable terminal 200. In this way, even if the imaging sequence is changed, the imaging operation in the mobile radiation imaging apparatus 1 is completed, and the radiographic image data stored in the cassette CA and the history information of the portable terminal 200 are sucked into the host computer. At this time, the radiographic image data and the patient H can be accurately collated. Initially, radiographic images were scheduled to be taken for a plurality of patients H one by one. However, when the number of images to be taken is changed individually, the changed number of shots is stored in the memory of the mobile terminal 200. You may make it do.

  In other words, if the changed information can be stored in the mobile terminal 200 when the shooting order, the number of shots, and the like are changed, as described above, a plurality of patients H can be obtained with a single cassette CA while considering hygiene. A radiographic image can be taken, and the radiographic image and the patient H can be accurately collated.

  As mentioned above, although this invention was demonstrated using embodiment shown in FIGS. 1-9, this invention is not limited to the said embodiment, There exists a change and addition in the range which does not deviate from the summary of this invention. Are also included in the present invention.

DESCRIPTION OF SYMBOLS 1 Mobile type radiography apparatus 100 Apparatus main body part 101A, 101B Wheel 102 Radiation irradiation part 103 Operation display part 104 Opening / closing door 105 Cassette storage part 106 Main body memory | storage part 107 Main body power supply part 108 Irradiation drive part 109 Main body communication part 105A Supporting rod 105B Separation Claw 105C Back plate 110 Suction board 120 Release part 120A Release button 120B Wall member 120C O-ring 120D Spring member 200 Portable terminal 201 Terminal storage part 202 Terminal operation display part 203 Terminal power supply part 204 Terminal communication part BE Bed CA Cassette H Patient P Storage Bag SE1 Main body control unit SE2 Terminal control unit

Claims (3)

at least,
A radiation irradiation unit for irradiating the subject with radiation;
A cassette housing portion that houses a two-dimensionally arranged detection element on the substrate and stores a portable cassette that outputs an electrical signal corresponding to the amount of radiation irradiated to the detection element;
A mobile radiography apparatus that moves to an imaging location and captures a radiographic image,
An opening and closing door for opening and closing the storage opening of the cassette storage unit;
A storage bag that is set in the cassette storage section and into which the cassette is inserted through an opening provided at one end;
An engaging portion that engages with a part of the storage bag by the closing operation of the opening and closing door and expands the opening by the opening operation of the opening and closing door while maintaining the engagement with a part of the storage bag;
A release portion that releases the engagement between the storage bag and the engagement portion, and allows the cassette to be taken out from the cassette storage portion in a state of being stored in the storage bag;
A mobile radiographic apparatus characterized by comprising:   The mobile radiation imaging apparatus according to claim 1, further comprising a holding unit that holds the plurality of storage bags.   The mobile radiation imaging apparatus according to claim 1, wherein the storage bag includes an adhesive portion around the opening.

Images