JP2015043930A - Movable type x-ray diagnostic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable type X-ray diagnostic apparatus capable of reducing time and efforts for imaging.SOLUTION: A movable type X-ray diagnostic apparatus includes an X-ray tube 4 and a control part 11. The X-ray tube 4 generates an X-ray. Based on the information on the arrangement of the X-ray tube 4, the control part 11 controls the position of the X-ray tube 4 so as to arrange the X-ray tube 4 at a predetermined position.

Description

  Embodiments described herein relate generally to a mobile X-ray diagnostic apparatus.

  Conventionally, a mobile X-ray diagnostic apparatus that captures an X-ray image by moving it to a hospital room or the like is known. For example, the mobile X-ray diagnostic apparatus supports an X-ray tube that generates X-rays, an X-ray movable diaphragm that adjusts an X-ray irradiation field generated by the X-ray tube, and an X-ray tube and an X-ray movable diaphragm A support mechanism, an apparatus main body that executes various controls of the mobile X-ray diagnostic apparatus, and a wheel for moving the apparatus. The mobile X-ray diagnostic apparatus is moved to the patient's room by the operator, and X-rays are applied to a patient who is on the bed in the patient's room and cannot easily move (for example, during walking, bedridden, difficulty walking due to both leg injuries). Perform image capture.

  Here, in the above-described mobile X-ray diagnostic apparatus, the position of the X-ray tube supported by the support mechanism and the X-ray movable diaphragm so that the affected part is included in the X-ray irradiation field when the X-ray image is taken. After the adjustment is made, X-ray image capturing is executed. However, in the above-described prior art, it may take time to shoot.

JP 2008-173257 A

  The problem to be solved by the present invention is to provide a mobile X-ray diagnostic apparatus that makes it possible to reduce the labor required for imaging.

  The mobile X-ray diagnostic apparatus according to the embodiment includes an X-ray tube and a control unit. The X-ray tube generates X-rays. The control unit controls the position of the X-ray tube so as to arrange the X-ray tube at a predetermined position based on information on the arrangement of the X-ray tube.

FIG. 1 is a diagram illustrating an example of the overall configuration of the mobile X-ray diagnostic apparatus according to the first embodiment. FIG. 2 is a schematic diagram of information stored by the storage unit according to the first embodiment. FIG. 3A is a diagram illustrating an example of a GUI displayed on the operation unit according to the first embodiment. FIG. 3B is a diagram illustrating an example of a GUI displayed on the operation unit according to the first embodiment. FIG. 4 is a diagram for explaining an example of control by the control unit according to the first embodiment. FIG. 5 is a diagram illustrating an example of a GUI displayed on the operation unit according to the first embodiment. FIG. 6 is a diagram for explaining an example of control by the mobile X-ray diagnostic apparatus according to the second embodiment. FIG. 7 is an overview diagram showing an example of the configuration of the mobile X-ray diagnostic apparatus according to the third embodiment. FIG. 8 is a diagram for explaining an example of control by the control unit according to the third embodiment. FIG. 9 is a diagram illustrating an example of a configuration of a mobile X-ray diagnostic apparatus according to the fourth embodiment.

  Hereinafter, embodiments of a mobile X-ray diagnostic apparatus will be described in detail with reference to the accompanying drawings. In the following, a mobile X-ray diagnostic apparatus according to the present application will be described by taking as an example a mobile X-ray diagnostic apparatus in which a support column is used for a support mechanism that supports an X-ray tube and an X-ray movable diaphragm.

(First embodiment)
First, an example of the overall configuration of the mobile X-ray diagnostic apparatus according to the first embodiment will be described with reference to FIG. FIG. 1 is a diagram illustrating an example of the overall configuration of a mobile X-ray diagnostic apparatus 1 according to the first embodiment. 1A shows a state when the X-ray tube is stored, and FIG. 1B shows a state when an X-ray image is taken. As shown in FIG. 1A, the mobile X-ray diagnostic apparatus 1 includes a column 2, an arm 3, an X-ray tube 4, an X-ray movable diaphragm 5, a front wheel 6, a rear wheel 7, An operation handle 8 and an apparatus main body 9 are provided.

  As shown in FIG. 1A, the support column 2 is disposed on the front side (front wheel 6 side) of the mobile X-ray diagnostic apparatus 1, and supports the arm 3 by connecting one end of the arm 3. One end of the arm 3 is connected to the support column 2, and an X-ray tube 4 and an X-ray movable diaphragm 5 are disposed at the other end. Here, the arm 3 is connected by the support column 2 so as to slide freely up and down. For example, a rail is installed on the support column 2, and the arm 3 slides up and down by moving on the rail with one end connected to the rail. Further, the arm 3 expands and contracts in a direction perpendicular to the long axis of the support column 2.

  Here, the arm 3 and the support column 2 according to the first embodiment have a mechanism having a driving force such as a motor, and the motor or the like is driven according to control by the control unit 11 of the apparatus main body 9 described later. To automatically slide or expand / contract. Details of these controls will be described later.

  The X-ray tube 4 is connected to a high voltage generator (not shown) included in the apparatus main body 9 and generates X-rays using a high voltage supplied from the high voltage generator. The X-ray movable diaphragm 5 has a mechanism for adjusting the irradiation field of X-rays generated by the X-ray tube 4. Specifically, the X-ray movable diaphragm 5 has two pairs of movable restriction blades, and the X-ray irradiation field is adjusted by opening and closing the movable restriction blades in each pair. That is, the movable restricting blade 5 is opened and closed so that the X-ray emitted in a conical shape by the X-ray tube 4 is irradiated to a predetermined irradiation field.

  The front wheel 6 is a turnable wheel, for example, a pair of casters. The rear wheel 7 is a drive wheel to which a motor or the like (not shown) is connected, and is driven according to an operation by an operator. As an example, the rear wheel 7 is driven by a motor driven by pressing a drive button disposed near the operation handle 8 and driven by power from the motor. The operation handle 8 is a handle that is operated when the operator moves the mobile X-ray diagnostic apparatus 1. For example, the operator can move the mobile X-ray diagnostic apparatus 1 forward or backward by pressing the drive button while holding the operation handle 8. Alternatively, the operation handle 8 includes a pressure sensor, and detects the direction operated by the operator (for example, moving forward when the operation handle is pressed, moving backward when the operation handle is pulled, etc.), and the motor is operated in a desired manner. It is also possible to drive in the direction. Note that the mobile X-ray diagnostic apparatus 1 is controlled so as to be braked when the above-described driving button is stopped or when detection by the pressure sensor is lost.

  As shown in FIG. 1A, the apparatus main body 9 includes a control unit 11 that controls each unit of the mobile X-ray diagnostic apparatus 1, a storage unit 10 that stores various data, and power supplied from the outside. Battery, an operation unit that accepts various operations, a display unit that displays various information, and the like. In the apparatus main body 9, the control unit 11 controls various processes related to movement of the mobile X-ray diagnostic apparatus 1 and various processes related to imaging of X-ray images. For example, the control unit 11 controls the high voltage generation unit according to the operator's instruction transferred from the operation unit arranged on the upper surface of the apparatus main body 9 and adjusts the voltage supplied to the X-ray tube 4, thereby adjusting the patient. The X-ray dose and ON / OFF to be controlled are controlled. In addition, for example, the control unit 11 controls the X-ray movable diaphragm 5 in accordance with an instruction from the operator, and adjusts the opening degree of the movable restriction blade included in the X-ray movable diaphragm 5 so that X irradiated to the patient is irradiated. Control the field of radiation.

  In addition, the control unit 11 controls image data generation processing, image processing, analysis processing, and the like according to an instruction from the operator. Further, the control unit 11 performs control so that a GUI for receiving an instruction from the operator, an image stored in the storage unit 10, and the like are displayed on the display of the display unit. 1 is, for example, a storage device such as a hard disk or an optical disk, or a semiconductor memory element such as a RAM (Random Access Memory) or a flash memory. The control unit 11 shown in FIG. 1 is an electronic circuit such as a CPU (Central Processing Unit) or MPU (Micro Processing Unit), or an integrated circuit such as an ASIC (Application Specific Integrated Circuit) or an FPGA (Field Programmable Gate Array). .

  The overall configuration of the mobile X-ray diagnostic apparatus 1 according to the first embodiment has been described above. Based on the overall configuration described above, the mobile X-ray diagnostic apparatus 1 according to the first embodiment reduces the effort required for imaging by the storage unit 10 and the control unit 11 described in detail below. Here, first, the flow of X-ray image imaging using a conventional mobile X-ray diagnostic apparatus will be described with reference to FIG. For example, a conventional mobile X-ray diagnostic apparatus is placed in a corridor or the like on each floor of a hospital during standby, and is charged according to the storage capacity of the battery. In use, the mobile X-ray diagnostic apparatus is unlocked by a dedicated key or the like, and the operator operates the handle and drives the rear wheel by a drive button (or a pressure sensor or the like) to move the patient room. Moved.

  When the operator moves to the hospital room, as shown in FIG. 1B, the operator rotates the column with the longitudinal direction as an axis and directs the X-ray tube and the X-ray movable diaphragm to the front of the apparatus main body. Then, the operator extends the arm and arranges the X-ray tube at a position where X-rays are irradiated on the imaging region of the patient. Here, the operator uses a switch, a knob, or the like provided in the X-ray movable diaphragm to adjust the imaging region so as to enter the irradiation field. As an image recording medium, an FPD (Flat Panel Detector), a cassette or the like is set between the imaging region of the patient and the bed.

  As described above, the conventional mobile X-ray diagnostic apparatus is moved to a hospital room where a patient is present at the time of use, and the position and irradiation field of the X-ray tube are adjusted with respect to the imaging region. As described above, in the conventional mobile X-ray diagnostic apparatus, the operator manually adjusts the X-ray tube and the X-ray movable diaphragm. Therefore, for example, when the operator is a short person such as a woman, it may take time to adjust the X-ray tube and the X-ray movable diaphragm to appropriate positions. Therefore, the mobile X-ray diagnostic apparatus 1 according to the first embodiment reduces the labor required for imaging by automating the movement of the arm 3.

  Specifically, the control unit 11 according to the first embodiment controls the X-ray tube 4 to be arranged at a predetermined position based on information regarding the arrangement of the X-ray tube 4. More specifically, the control unit 11 uses information on the position of the X-ray tube 4 relative to the apparatus main body 9 as information on the arrangement of the X-ray tube 4 so that the X-ray tube 4 is arranged at a predetermined position. Control. For example, the control unit 11 refers to information on the position of the X-ray tube 4 with respect to the apparatus main body 9 stored by the storage unit 10 and controls the X-ray tube 4 to be disposed at a predetermined position.

  FIG. 2 is a schematic diagram of information stored by the storage unit 10 according to the first embodiment. FIG. 2 shows a top view of the mobile X-ray diagnostic apparatus 1. For example, in the storage unit 10, the position of the X-ray tube 4 is based on the position of the arm 3 in the state in which the X-ray tube 4 shown in FIG. This information is stored. For example, as shown in FIG. 2B, the storage unit 10 includes a center line in the longitudinal direction and a front side (opposite the side where the operation handle 8 and the operation unit 9a are arranged) in the apparatus main body 9. Information when the X-ray tube 4 is located in each of four sections formed by lines along the end is stored.

  Here, the memory | storage part 10 memorize | stores the information of the detailed position of the X-ray tube 4 in each division. For example, the storage unit 10 stores the turning state of the support column 2 (the angle of the arm 3) when the X-ray tube 4 is positioned at P1, the height and the expansion / contraction state of the arm 3. Similarly, the memory | storage part 10 memorize | stores each information in case the X-ray tube 4 is located in P2, P3, and P4. Information stored by the storage unit 10 can be arbitrarily registered in advance by an operator. That is, the information shown in FIG. 2 is merely an example, and the position of the X-ray tube 4 stored in the storage unit 10 is not limited to four, but may be three or less, or may be five or more. May be.

  The control part 11 controls the arm 3 and the support | pillar 2 based on the information of the position of the X-ray tube 4 as shown in FIG. Here, the control unit 11 reads position information corresponding to the information specified by the operator from the storage unit 10 and controls the position of the X-ray tube 4. Specifically, when controlling the support column 2 and the arm 3, the control unit 11 displays an operation GUI (Graphical User Interface) on the operation unit 9a and accepts designation of a position by the operator.

  FIG. 3A is a diagram illustrating an example of a GUI displayed on the operation unit 9a according to the first embodiment. For example, the mobile X-ray diagnostic apparatus 1 according to the first embodiment includes an automatic control mode for automatically controlling the support 2 and the arm 3, and the mode is switched from the manual mode to the automatic control mode by the operator. Then, the control unit 11 displays the GUI shown in FIG. 3A on the operation unit 9a. That is, the control unit 11 displays a GUI for designating P1 to P4 stored in the storage unit 10 on the operation unit 9a. Here, the control unit 11 can display a GUI for designating P1 to P4 in an arbitrary arrangement. For example, as shown in FIG. It is also possible to display a GUI for designating P1 to P4. That is, as shown in FIG. 3A, the control unit 11 arranges and displays GUIs for designating P1 to P4 at positions corresponding to the four sections stored in the storage unit 10.

  When any one of P1 to P4 shown in FIG. 3A is designated by the operator, the control unit 11 can provide information corresponding to the designated position (for example, the turning state of the support column 2, the height of the arm 3 and the expansion / contraction state). ) Is read from the storage unit 10 and the motors provided on the support column 2 and the arm 3 are driven so as to be in the read state.

  Here, the GUI displayed on the operation unit 9a is not limited to FIG. 3A, and various GUIs can be displayed. FIG. 3B is a diagram illustrating an example of a GUI displayed on the operation unit 9a according to the first embodiment. As shown in FIG. 3B, in addition to the GUI for designating P1 to P4 stored by the storage unit 10, the control unit 11 supports the column so that the X-ray tube 4 moves to a predetermined position only while pressing. It is possible to display “automatic button” for controlling 2 and arm 3, “support column turning” for controlling the turning of the support column 2, and “arm movement” for moving the arm 3 on the operation unit 9 a.

  As described above, the control unit 11 controls the support column 2 and the arm 3 so that the X-ray tube 4 is positioned at a position designated via the operation unit 9a. Here, when the X-ray tube 4 is placed at a predetermined position, the control unit 11 controls the X-ray tube 4 to be at a predetermined height, and then places the X-ray tube 4 at a predetermined position. Control to do. That is, the control unit 11 moves the arm 3 to a predetermined height and then turns the arm 3 from the direction corresponding to the information on the position of the X-ray tube 4 with respect to the apparatus main body 9, thereby moving the X-ray tube 4. Control to arrange at a predetermined position.

  FIG. 4 is a diagram for explaining an example of control by the control unit 11 according to the first embodiment. For example, when the position designation is received from the operator via the operation unit 9a, the control unit 11 first moves the arm 3 in the direction (upward) indicated by the arrow 21 as shown in FIG. . Thereby, it is possible to prevent the X-ray tube 4 and the X-ray movable diaphragm 5 in the storage state from colliding with the apparatus main body 9 by turning as they are. Here, the control unit 11 moves the arm 3 upward until the arm 3 reaches the height of the designated position or moves to a height exceeding a predetermined threshold. The predetermined threshold can be arbitrarily set by the operator, and is, for example, a height at which the X-ray tube 4 and the X-ray movable diaphragm 5 do not collide with the apparatus main body 9.

  Then, as shown in FIG. 4B, the control unit 11 moves the arm 3 upward, enables the support column 2 to turn when the predetermined threshold is exceeded, and moves the arm 3 The X-ray tube 4 is extended and moved to a designated position. That is, it is preferable that the control unit 11 first controls the upward movement of the arm 3 instead of starting the upward movement of the arm 3 after turning the column 2. Thereby, it is possible to avoid the X-ray tube 4 and the X-ray movable diaphragm 5 from contacting an obstacle such as a tissue box (not shown) placed on the apparatus main body 9 or the apparatus main body 9. At this time, the control unit 11 may perform the turning control of the support column 2 or the extension control of the arm 3 after finishing the upward movement of the arm 3, or triggered by the arm 3 being moved upward and exceeding the threshold value. The turning control of the support column 2 and the extension control of the arm 3 may be performed while the arm 3 is moving upward.

  Here, the control part 11 turns the support | pillar 2 in the direction shortest to the position where the X-ray tube 4 is arrange | positioned. For example, when the X-ray tube 4 is arranged at P1 or P2 shown in FIG. 2, the control unit 11 turns the support column 2 so that the arm 3 rotates from the left side of the drawing. On the other hand, when the X-ray tube 4 is arranged at P3 or P4 shown in FIG. 2, the control unit 11 turns the support column 2 so that the arm 3 rotates from the right side of the drawing.

  Here, the mobile X-ray diagnostic apparatus 1 according to the first embodiment includes a non-contact sensor in the vicinity of the X-ray tube 4, and the control unit 11 detects an object near the X-ray tube 4 by the non-contact sensor. When the presence is detected, the control of arranging the X-ray tube 4 at a predetermined position may be stopped. In other words, the control unit 11 is a non-contact sensor for preventing an object from being hit when the arm 3 is moved upward, the support column 2 is turned, or the arm 3 is extended. While confirming the surrounding state at, the support column 2 and the arm 3 are moved. The position where the non-contact sensor is arranged is not limited to the vicinity of the X-ray tube 4 and can be provided at an arbitrary position. There may be.

  And the control part 11 performs control which produces | generates an X-ray image based on the X-ray detected by FPD, and when the production | generation of an X-ray image is complete | finished, it controls so that the X-ray tube 4 may be accommodated. For example, the control unit 11 performs control to acquire digital data converted from X-ray information by the FPD by wireless communication and generate an X-ray image using the acquired digital data. And if the control part 11 performs control which produces | generates an X-ray image, it will control the support | pillar 2 and the arm 3 so that the X-ray tube 4 may be in the housed position. That is, the control unit 11 performs control for automatically storing the X-ray tube 4 when X-ray imaging is completed.

  As described above, the mobile X-ray diagnostic apparatus 1 according to the first embodiment automatically arranges the X-ray tube 4 at the position specified by the operator, and automatically stores the X-ray after the X-ray imaging is completed. Return to. Thereby, the mobile X-ray diagnostic apparatus 1 can reduce the labor of the operator for imaging. Furthermore, when performing X-ray imaging using the mobile X-ray diagnostic apparatus 1 according to the first embodiment, after the operator moves the mobile X-ray diagnostic apparatus 1 to a hospital room or the like, the column is automatically By performing other operations while moving the arm 2 and the arm 3, it is possible to reduce the time required for photographing. In addition, while the support 2 and the arm 3 are automatically moved, the operator can further reduce the load on the patient, for example, by caring for the patient.

  In addition, the movement of the support | pillar 2 and the arm 3 mentioned above is performed only when the apparatus main body 9 has stopped. That is, the control unit 11 automatically arranges the X-ray tube 4 at a predetermined position on condition that the apparatus main body 9 is stopped. Further, as described above, when the X-ray tube 4 is disposed at a predetermined position, the X-ray tube 4 may not be disposed at a position where the imaging region is accurately imaged. Therefore, in the mobile X-ray diagnostic apparatus 1 according to the first embodiment, for example, after the support column 2 and the arm 3 are automatically moved, the operator switches to the manual mode and moves the X-ray tube to a more accurate position. 4 can be arranged. The switching of the manual mode at this time may be performed automatically after the support column 2 or the arm 3 has been moved automatically, or may be switched manually by operating the display unit or the like provided in the apparatus main body 9. It may be. Alternatively, the manual mode may be automatically switched when the movement control of the support column 2 and the arm 3 is stopped by the operation of the non-contact sensor.

  In the example of the operation unit 9a described above, GUIs for designating P1 to P4 are arranged at positions corresponding to the four sections as GUIs for designating the positions of the X-ray tubes 4 stored in the storage unit 10, respectively. The case where it is displayed is explained. However, the embodiment is not limited to this. For example, the positional relationship between the mobile X-ray diagnostic apparatus 1 and the bed on which the patient is sleeping may be used as the GUI for designating P1 to P4. .

  FIG. 5 is a diagram illustrating an example of a GUI displayed on the operation unit 9a according to the first embodiment. For example, as shown in FIG. 5, the control unit 11 displays a GUI indicating the positional relationship between the mobile X-ray diagnostic apparatus 1 and the bed on which the patient is sleeping. Here, the operator can move the X-ray tube 4 to a position corresponding thereto by designating a positional relationship similar to the positional relationship between the mobile X-ray diagnostic apparatus 1 and the bed at the present time. For example, when the positional relationship shown in the upper left of FIG. 5 is designated, the control unit 11 controls the X-ray tube 4 to move to the position P2 shown in FIG. By displaying such a GUI, it is not necessary for the operator to remember information displayed on the GUI one by one, and the labor can be further reduced.

  As described above, according to the first embodiment, the X-ray tube 4 generates X-rays. The control unit 11 controls the X-ray tube 4 to be arranged at a predetermined position based on information regarding the arrangement of the X-ray tube 4. Therefore, the mobile X-ray diagnostic apparatus 1 according to the first embodiment can automatically move the X-ray tube 4 and can reduce labor for imaging.

  Further, according to the first embodiment, the control unit 11 controls the X-ray tube 4 to have a predetermined height when the X-ray tube 4 is disposed at a predetermined position, and then performs the X-ray. The pipe 4 is controlled to be arranged at a predetermined position. Therefore, the mobile X-ray diagnostic apparatus 1 according to the first embodiment can prevent the X-ray tube 4, the X-ray movable diaphragm 5 and the like from colliding with the apparatus body 9, and enables safe automatic control. To.

  Further, according to the first embodiment, the control unit 11 uses information on the position of the X-ray tube 4 with respect to the apparatus main body 9 as information related to the arrangement of the X-ray tube 4, and arranges the X-ray tube 4 at the position. Control to do. Therefore, the mobile X-ray diagnostic apparatus 1 according to the first embodiment makes it possible to accurately move the X-ray tube 4.

  Further, according to the first embodiment, the arm 3 supports the X-ray tube 4. The control unit 11 moves the arm 3 to a predetermined height, and then turns the arm 3 from a direction corresponding to information on the position of the X-ray tube 4 with respect to the apparatus main body 9 to thereby move the X-ray tube 4 to a predetermined level. Control to place in position. Therefore, the mobile X-ray diagnostic apparatus 1 according to the first embodiment makes it possible to easily perform safe automatic control.

  Further, according to the first embodiment, the control unit 11 controls the X-ray tube 4 to be disposed at a predetermined position on the condition that the apparatus main body 9 is stopped. Therefore, the mobile X-ray diagnostic apparatus 1 according to the first embodiment suppresses a malfunction during traveling and enables automatic control more safely.

  Further, according to the first embodiment, the non-contact sensor is provided in the vicinity of the X-ray tube 4. Then, when the presence of an object is detected in the vicinity of the X-ray tube 4 by the non-contact sensor, the control unit 11 stops the control for arranging the X-ray tube 4 at a predetermined position. Therefore, the mobile X-ray diagnostic apparatus 1 according to the first embodiment avoids colliding with surrounding objects during automatic control, and enables safer automatic control.

  Further, according to the first embodiment, the control unit 11 generates an X-ray image based on the X-rays detected by the FPD, and when the generation of the X-ray image is finished, the control unit 11 Control to store. Therefore, the mobile X-ray diagnostic apparatus 1 according to the first embodiment can also automate the control at the time of storage, and can further reduce the labor for imaging.

(Second Embodiment)
In the first embodiment described above, the case where the automatic control is performed based on the position information of the X-ray tube 4 stored in advance in the storage unit 10 has been described. In the second embodiment, a case where automatic control is performed based on the position of the FPD will be described. Specifically, the second mobile X-ray diagnostic apparatus 1 further includes a detection mechanism that detects the position of the FPD that detects the X-rays generated by the X-ray tube 4. And the control part 11 is controlled to arrange | position the X-ray tube 4 in the position according to the position of FPD detected by the detection mechanism.

  FIG. 6 is a diagram for explaining an example of control by the mobile X-ray diagnostic apparatus 1 according to the second embodiment. For example, in the mobile X-ray diagnostic apparatus 1 according to the second embodiment, as shown in FIG. 6, FPDs 30 each having markers 31 at four corners are used. The apparatus main body 9 is provided with a detector that detects the marker 31. And the control part 11 is controlled to move the X-ray tube 4 to the position of the marker detected by the detector, as shown in FIG. In addition, the marker and detector used here can apply the existing markers and detectors, such as a magnetic type, for example.

  In the mobile X-ray diagnostic apparatus 1 according to the second embodiment, since the position of the FPD 30 can be detected, the X-ray movable diaphragm 5 is automatically controlled in addition to the automatic control of the support column 2 and the arm 3. It is also possible to make it. In such a case, a motor or the like controlled by the control unit 11 is provided in the X-ray movable diaphragm 5. And the control part 11 controls the X-ray movable diaphragm 5 so that the square formed with the marker 31 with which FPD30 is equipped becomes an irradiation field.

  As described above, according to the second embodiment, the detection mechanism detects the position of the FPD 30 that detects the X-rays generated by the X-ray tube 4. And the control part 11 is controlled to arrange | position the X-ray tube 4 in the position according to the position of FPD30 detected by the detection mechanism. Therefore, the mobile X-ray diagnostic apparatus 1 according to the second embodiment automatically controls the column 2, the arm 3, the X-ray movable diaphragm 5 and the like more accurately without using information on the position of the X-ray tube 4. Make it possible to do.

(Third embodiment)
In the second embodiment described above, the case where automatic control is performed based on the position of the FPD has been described. In the third embodiment, a case where automatic control is performed based on an image including a patient will be described. Specifically, the third mobile X-ray diagnostic apparatus 1 further includes a detection mechanism that detects a subject irradiated with X-rays by the X-ray tube 4. And the control part 11 arrange | positions the X-ray tube 4 so that a X-ray may be irradiated to the predetermined position of the subject detected by the detection mechanism.

  FIG. 7 is an overview diagram showing an example of the configuration of the mobile X-ray diagnostic apparatus 1 according to the third embodiment. As shown in FIG. 7, the mobile X-ray diagnostic apparatus 1 according to the third embodiment has a camera 12 on a support 2. Here, the camera 12 is provided on the support 2 so that the direction of 360 ° from the support 2 can be photographed. For example, three cameras 12 are provided every 60 degrees around the column 2.

  And the control part 11 which concerns on 3rd Embodiment detects a patient from the image image | photographed with the camera 12, and controls to arrange | position the X-ray tube 4 with respect to the detected patient. FIG. 8 is a diagram for explaining an example of control by the control unit 11 according to the third embodiment. For example, as shown in FIG. 8A, when the apparatus is placed beside the bed where the patient is sleeping, the camera 12 provided on the column 2 captures a surrounding image. The control unit 11 detects a patient (human) by performing pattern matching or the like on images captured by the three cameras 12.

  And the control part 11 specifies the relative relationship of the position of the own apparatus in a real space, and the position of a patient from the position of the camera 12 which image | photographed the image which detected the patient, and the position of the patient in an image. And the control part 11 moves the X-ray tube 4 to a patient's position by controlling the support | pillar 2 and the arm 3 as shown to (B) of FIG. 8 based on the specified relative relationship.

  As described above, according to the third embodiment, the detection mechanism detects a subject irradiated with X-rays by the X-ray tube. The control unit 11 arranges the X-ray tube 4 so that X-rays are irradiated to a predetermined position of the subject detected by the detection mechanism. Therefore, the mobile X-ray diagnostic apparatus 1 according to the third embodiment can accurately support the column without using information on the position of the X-ray tube 4 stored in advance or a detection mechanism for specifying the position of the FPD 30. 2 and the arm 3 can be automatically controlled.

(Fourth embodiment)
The first to third embodiments have been described so far, but may be implemented in various different forms other than the first to third embodiments described above.

  In the first to third embodiments described above, the case where the targets of automatic control are the support column 2, the arm 3, and the X-ray movable diaphragm 5 has been described. However, the embodiment is not limited to this, and various components that support the X-ray tube 4 can be automatically controlled. FIG. 9 is a diagram illustrating an example of the configuration of the mobile X-ray diagnostic apparatus 1 according to the fourth embodiment.

  For example, in the mobile X-ray diagnostic apparatus 1 according to the fourth embodiment, as shown in FIG. 9A, the control unit 11 moves the arm 3 in the direction of arrow 23 (upward). Then, as shown in FIG. 9B, the control unit 11 extends the pedestal 13 that supports the support column 2 in the direction of the arrow 24 to move the support column 2 further away. Then, as shown in FIG. 9C, the control unit 11 turns the support column 2 in the direction of the arrow 25 to extend the arm 3.

  Thus, the mobile X-ray diagnostic apparatus 1 according to the present application can automatically control various support mechanisms that support the X-ray tube 4. Note that the example illustrated in FIG. 9 is merely an example, and the embodiment is not limited thereto. For example, it may be a case where a plurality of support mechanisms are automatically controlled.

  In the first and second embodiments described above, the mobile X-ray diagnostic apparatus 1 having the support column 2 has been described as an example. However, the embodiment is not limited to this example. It may be a case where the diaphragm handle or the unlocking unit of the present application is applied to a mobile X-ray diagnostic apparatus that does not have.

  Moreover, in the 1st and 2nd embodiment mentioned above, the structure demonstrated is an example to the last, and the mobile X-ray diagnostic apparatus 1 concerning this application can have a various structure. For example, the shapes of the apparatus main body 9, the X-ray tube 4, the X-ray movable diaphragm 5, etc. shown in FIG. 1 may be arbitrary shapes. Further, the configuration described as being provided in the apparatus main body 9 can be arbitrarily changed in arrangement. For example, the high voltage generator provided in the apparatus main body 9 may be disposed in a box including the X-ray tube 4. Further, when positioning the X-ray tube 4, the control unit 11 may control the rotation of the X-ray tube 4 with the horizontal direction as an axis. That is, the control unit 11 not only controls to position the X-ray tube 4 at the position / orientation in which the X-ray is irradiated in the vertical direction, but also irradiates X-rays in an oblique direction (a direction other than the vertical direction), for example. Control to rotate the X-ray tube 4 in such a direction may be performed.

  As described above, according to the first to fourth embodiments, the mobile X-ray diagnostic apparatus according to the present embodiment can reduce the effort required for imaging.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Mobile X-ray diagnostic apparatus 2 Support | pillar 3 Arm 4 X-ray tube 5 X-ray movable diaphragm 9 Apparatus main body 10 Memory | storage part 11 Control part

The mobile X-ray diagnostic apparatus according to the embodiment includes an X-ray generation unit , a holding unit, and a control unit. The X-ray generation unit generates X-rays. The holding unit holds the X-ray generation unit. Control unit on the basis of the information relating to the arrangement of the X-ray generation unit, after controlling to rise moving the X-ray generation unit to a predetermined height, performs control for rotating the holder.

Claims (9)

An X-ray tube that generates X-rays;
A control unit that controls the position of the X-ray tube so as to arrange the X-ray tube at a predetermined position, based on information on the arrangement of the X-ray tube;
A mobile X-ray diagnostic apparatus comprising:   When the X-ray tube is arranged at the predetermined position, the control unit controls the X-ray tube to have a predetermined height, and then arranges the X-ray tube at the predetermined position. The mobile X-ray diagnostic apparatus according to claim 1, wherein the position of the X-ray tube is controlled.   The control unit uses information on the position of the X-ray tube with respect to the main body as information on the arrangement of the X-ray tube, and sets the position of the X-ray tube so as to arrange the X-ray tube at the predetermined position. The mobile X-ray diagnostic apparatus according to claim 1, wherein the mobile X-ray diagnostic apparatus is controlled. An arm for supporting the X-ray tube;
The control unit moves the arm unit to a predetermined height, and then pivots the arm unit from a direction corresponding to information on the position of the X-ray tube with respect to the main body unit, thereby causing the X-ray tube to move. The mobile X-ray diagnostic apparatus according to claim 3, wherein the position of the X-ray tube is controlled so as to be arranged at the position.   The said control part controls the position of the said X-ray tube so that the said X-ray tube may be arrange | positioned in a predetermined | prescribed position on condition that the main-body part has stopped. The mobile X-ray diagnostic apparatus according to any one of the above. A non-contact sensor in the vicinity of the X-ray tube;
The said control part stops the control which arrange | positions the said X-ray tube in the said predetermined position, when presence of an object is detected in the vicinity of the said X-ray tube by the said non-contact sensor. The mobile X-ray diagnostic apparatus according to any one of 1 to 5.   The control unit generates an X-ray image based on the X-ray detected by the X-ray detection unit, and controls to store the X-ray tube when the generation of the X-ray image is completed. The mobile X-ray diagnostic apparatus according to any one of claims 1 to 6, wherein A detection mechanism for detecting a position of an X-ray detector for detecting X-rays generated by the X-ray tube;
2. The control unit controls the position of the X-ray tube so that the X-ray tube is arranged at a position corresponding to the position of the X-ray detector detected by the detection mechanism. The mobile X-ray diagnostic apparatus according to 1. A detection mechanism for detecting a subject irradiated with X-rays by the X-ray tube;
The control unit controls the position of the X-ray tube so that the X-ray tube is arranged so that X-rays are irradiated to a predetermined position of the subject detected by the detection mechanism. The mobile X-ray diagnostic apparatus according to claim 1.

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