JP5329618B2 - Radiation generator operating device and radiation imaging system - Google Patents

Description

  The present invention relates to an operating device for moving and rotating a radiation generator, and a radiation imaging system.

  In the medical field, X-ray imaging systems using radiation, for example, X-rays, are known for performing image diagnosis. The X-ray imaging system is configured so that an X-ray generator that emits X-rays toward a subject, an X-ray detector that detects X-rays transmitted through the subject, and the subject can be imaged in various postures. , A moving device that enables the X-ray generator to move and rotate in a predetermined direction, and an operating device that performs an operation for moving and rotating the X-ray generator.

  In Patent Documents 1 and 2, an X-ray generator is attached to the tip of a column that moves in the vertical direction while moving along a rail laid on the floor or ceiling so that the X-ray generator can be moved and rotated. An X-ray imaging system including a moving device and an operation panel is described, and a handle provided integrally with the operation panel is held to move and rotate the X-ray generator. The moving device is provided with a brake mechanism for stopping the movement and rotation of the X-ray generator. When the release button provided on the operation panel is operated, the restriction by the brake mechanism is released, and the movement of the X-ray generator Rotation is allowed.

  In the X-ray imaging system described in Patent Document 3, a release button is provided on the handle. Further, in Patent Documents 4 and 5, the handle itself is a release switch, and the restriction by the brake mechanism is released by gripping the handle.

JP 2006-280626 A JP 2008-61780 A JP-A-6-165773 JP 2006-55533 A JP 2004-121405 A

  However, in the X-ray imaging system described in Patent Document 1 or 2, since the operation panel and the handle are arranged at a predetermined interval in consideration of the ease of gripping the handle, the X-ray imaging system is provided on the operation panel. When operating the release button, the force to grip the handle is weakened. Since the X-ray generator is heavy and must be moved in a state where the handle is firmly held, if the force for holding the handle is weakened, the operability when moving the X-ray generator is reduced. Also, if you hold the handle so that your finger is placed as close as possible to the release button to make it easier to operate the release button, it may become difficult to move the X-ray generator, reducing operability. To do.

  Further, in the X-ray imaging systems described in Patent Documents 3 to 5, even when the X-ray generator does not need to be moved, the restriction by the brake mechanism is released by gripping the handle. The position may become unstable and move in unexpected directions.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a radiation generator operating device and a radiation imaging system that can improve operability when moving the radiation generator.

The radiation generator operating device according to the present invention switches between a locked state in which movement and rotation are restricted in a predetermined direction and a free state in which at least one of movement and rotation is possible in the predetermined direction. In the radiation generator operating device for moving the radiation generator, a plate-like device main body coupled to the radiation generator, and provided in the device main body, the lock state of the radiation generator is released. And a release button for setting the free state, a grip portion disposed along both side edges of the device body, and formed integrally with the device body, and provided in the device body, in the predetermined direction. A direction selection button for selecting a direction in which the radiation generator is in a free state, and when the release button is operated, the direction selected by the direction selection button is free. Characterized in that a state. The radiation generator here includes a radiation tube that emits radiation and a diaphragm that limits the irradiation range of the radiation, and a high voltage generator (generator, power supply) is connected to the radiation tube. , Power is supplied.

The apparatus main body is provided with the direction selection buttons according to a plurality of the predetermined directions, respectively, and when the release button is operated, the radiation generation is performed with respect to a plurality of directions selected by the direction selection buttons. The vessel is preferably free. The apparatus main body has a front surface and a back surface formed in parallel and flat with each other, the front surface is located on the opposite side of the radiation generator, the back surface faces the radiation generator, and It is preferable that the grip portion protrudes from 1 mm to 30 mm with respect to the front surface and protrudes from 1 mm to 50 mm with respect to the back surface.

  It is preferable that the apparatus main body has a lateral width of 250 to 500 mm from one side edge where the grip portion is disposed to the other side edge.

  The release button is preferably provided in the vicinity of the grip portion, and the release button preferably has an elongated shape arranged along the grip portion.

  It is preferable that the apparatus main body is provided with a plurality of release buttons, and the radiation generator is in a free state when any one of the release buttons is operated.

  Preferably, the release button is turned on when pressed and the radiation generator is in a free state, and is turned off when the press is released and the radiation generator is in a locked state. The release button is preferably provided on either the front surface or the back surface.

  The radiation imaging system of the present invention includes the operation device, a radiation generator, a moving device that movably holds the radiation generator, and a radiation detection device that detects radiation. In addition, it is preferable that the said moving apparatus is a floor-type moving apparatus provided with the rail laid on the floor and the support | pillar which moves along the said rail.

According to the present invention, the device main body of the operating device coupled to the radiation generator is plate-shaped, the release button for releasing the locked state of the radiation generator to the device main body and freeing the radiation generator, and the radiation generator And a direction selection button for selecting a direction in which the device is in a free state, and a grip portion is integrally formed along both side edges of the apparatus body , and the direction selection button is operated when the release button is operated. Since the direction selected in (1) becomes the free state, the operability when moving the radiation generator can be improved.

1 is an external perspective view of an X-ray imaging system. It is the front side perspective view (A) and back side perspective view (B) which show the operating device of a radiation generator. It is a front view of an operating device. It is sectional drawing along the AA line of FIG. It is a block diagram which shows the control structure of a moving apparatus.

  As shown in FIG. 1, the X-ray (radiation) imaging system 10 of the first embodiment includes an imaging device 11, a moving device 12, and an operating device 13, and is installed in a hospital imaging room. The X-ray imaging system 10 can perform both standing-up imaging and lying-down imaging.

  The imaging device 11 includes an X-ray generator 14 and X-ray detection devices 15 and 16. The X-ray generator 14 includes an X-ray tube 14a that emits X-rays and an X-ray movable diaphragm 14b (collimator) that limits the X-ray irradiation range. A high voltage generator (generator, power source) (not shown) is connected to the X-ray tube 14a and supplied with power.

  The X-ray detection device 15 is used for taking a lying position, and includes a bed 18 having a top plate 17 and a tray 19 on which an X-ray imaging cassette 20 is mounted. The bed 18 functions as a supine position photographing stand for the supine position photographing. The X-ray imaging cassette 20 includes a flat panel detector (FPD) that detects an X-ray image in a substantially rectangular parallelepiped flat casing. In addition to the FPD, an imaging plate or the like can be used as the X-ray detector housed in the housing of the X-ray imaging cassette 20. The couch 18 is provided with a top plate 17 that can be raised and lowered, and the height can be adjusted.

  The X-ray detection device 16 is for standing-up imaging, and includes a stand 21 installed on the floor and a holder 22 for mounting an X-ray imaging cassette 20. The holder 22 functions as a standing photographing stand for standing photographing. The stand 21 is provided with a holder 22, an elevating mechanism (not shown) for moving the X-ray imaging cassette 20 attached to the holder 22 in the vertical direction (Z-axis direction), and an operation unit 23. The lifting mechanism includes a pulley, a conveyor belt, a motor, and the like.

  The operation unit 23 includes two buttons, an ascending button 23a for inputting an operation signal for rotating the motor of the elevating mechanism forward to raise the holder 22, and a lowering button 23b for inputting an operation signal for reversing the motor to lower the holder 22. It consists of buttons. Both the ascending button 23a and the descending button 23b are turned on while being pushed from the initial position to the pushing position, and when the pushing is released, the motor is turned off by returning to the initial position by spring bias. In addition, an operation signal for raising and lowering the holder 22 is transmitted from the operation unit 23 to the controller 51 described later.

  The moving device 12 holds the X-ray generator 14 so as to be movable in the X-axis, Y-axis, and Z-axis directions and to be rotatable around the X-axis. With this moving device 12, the X-ray generator 14 and the X-ray detection device 16 face each other with the subject in the standing posture sandwiched therebetween (indicated by a solid line), and the subject in the lying posture It is possible to move and rotate the X-ray generator 14 between the X-ray generator 14 and the X-ray detection device 15 facing each other in the supine position (indicated by a two-dot chain line).

  In the standing position, when the X-ray imaging cassette 20 is mounted on the holder 22, the FPD detection surface is oriented in a direction perpendicular to the Y axis, and the irradiation port of the X-ray generator 14 is the FPD detection surface. Opposite. At the supine position, when the cassette 20 for X-ray imaging is mounted on the tray 19, the FPD is placed under the top plate 17 that lays the subject in a posture in which the top surface 17 of the bed 18 and the detection surface are parallel to each other. The X-ray generator 14 is disposed above the top plate 17 so that the irradiation port faces the detection surface of the FPD.

  The moving device 12 is laid and fixed on the floor, and is disposed along the Y-axis direction. The movable device 12 is disposed along the X-axis direction orthogonal to the Y-axis direction and is movable along the fixed rail 24. 25, a carriage 26 held movably along the movable rail 25, and a support 27 arranged along the Z-axis direction from the upper surface of the carriage 26.

  The movable rail 25 is movably attached to the fixed rail 24 by a pair of traveling units 28 fixed to the movable rail 25. Each traveling unit 28 includes a rotatable roller (not shown), and the roller travels along the fixed rail 24 by rotating in the guide groove of the fixed rail 24. The carriage 26 is provided with a traveling unit 29 similar to the traveling unit 28, and the carriage 26 moves in the X-axis direction when the traveling unit 29 travels along the movable rail 25.

  The support column 27 is arranged upright and retractably in the Z-axis direction, the lower end is fixed to the carriage 26, and the X-ray generator 14 is provided at the upper end. The X-ray generator 14 moves in the XY plane by the movement of the carriage 26 and the movable rail 25, and moves up and down in the Z-axis direction by the expansion and contraction of the column 27. The X-ray generator 14 is attached to the upper end of the support column 27 via the holding unit 30 so as to be rotatable about the X axis.

  The moving device 12 is a brake that restricts the movement of the movable rail 25, the carriage 26, the support column 27, and the holding unit 30 and the rotation of the X-ray generator 14 so that the X-ray generator 14 does not move carelessly while stopped. A mechanism (see reference numerals 12a to 12d in FIG. 5) is provided. The brake mechanisms 12a to 12d are, for example, a brake plate that generates a frictional force by pressing against the fixed rail 24, the movable rail 25, the expansion / contraction mechanism of the support column 27, the rotating shaft of the holding unit 30, and the brake plate. And an actuator that moves between the release positions.

  The operating device 13 is provided integrally with the X-ray generator 14 and is operated when the X-ray generator 14 is moved. The X-ray generator 14 is in a locked state in which movement and rotation are restricted (locked) with respect to a predetermined direction by operating the brake mechanisms 12a to 12d, and the operation of the brake mechanisms 12a to 12d is stopped in a predetermined direction. Is switched between a free state in which at least one of movement and rotation is possible. When a restriction instruction is input by the operating device 13, the brake mechanisms 12a to 12d are activated and become locked. When a release instruction is input by the operating device 13, the operation of the brake mechanisms 12a to 12d is stopped and a free state is entered.

  The support 27 is electrically driven by a drive unit such as a motor (see reference numeral 12e in FIG. 5). When the support 27 is switched from the normal mode to the tracking mode by operating a mode switching button 46 described later, The X-ray generator 14 can be automatically expanded and contracted to follow the movement of the holder 22.

  As shown in FIGS. 2 and 3, the operating device 13 includes a device main body 41 formed in a plate shape and coupled to the X-ray generator 14, and a grip portion 42 formed integrally with the device main body 41. . The apparatus main body 41 and the grip part 42 are formed of a resin such as ABS. The apparatus main body 41 has a substantially rectangular outer shape, and a grip portion 42 is disposed along both side edges.

  The apparatus main body 41 has a front surface 41a and a back surface 41b (see FIG. 4) which are formed in parallel and flat with each other. On the front surface 41a, direction selection buttons 43a to 43d, release buttons 44a and 44b, a display window 45, a mode switching button 46, and indicators 47a to 47c are provided. The back surface 41b faces the X-ray generator 14 and is fixed to the X-ray generator 14 by screwing or the like.

  Direction selection buttons 43a to 43d, indicators 47a to 47c, a display window 45, and a mode switching button 46 are arranged in order from the top to the bottom near the center of the surface 41a, and release buttons 44a and 44b are arranged on both sides of the display window 45. Is arranged.

  The direction selection buttons 43a to 43d are arranged in a line along the left-right direction of the apparatus main body 41, and are respectively provided according to the movement direction of the X axis, the Y axis, the Z axis, and the rotation direction around the X axis. And is operated to select a moving direction and a rotating direction in which the X-ray generator 14 is in a free state. The direction selection buttons 43a to 43c select the X-axis, Z-axis, and Y-axis directions as the movement directions of the X-ray generator 14, respectively. The direction selection button 43d selects a direction around the X axis as the rotation direction of the X-ray generator 14.

  On the surface of the direction selection buttons 43a to 43c, figures indicating the selection direction are respectively attached. The direction selection buttons 43a to 43d are turned on / off by a pressing operation. When the direction selection buttons 43a to 43d are turned on, a built-in lamp is turned on, and when turned off, the lamp is turned off. Thereby, the photographer can recognize the selected direction. In the present embodiment, it is possible to select a plurality of directions by turning on a plurality of buttons among the direction selection buttons 43a to 43d.

  The display window 45 exposes the protractor plate 48 built in the apparatus main body 41. In the upper center of the display window 45, an index 49 is formed. The protractor plate 48 is rotatably attached to the apparatus main body 41, and the weight is adjusted so that the 0 ° position of the scale is positioned vertically downward. Thereby, the position of the scale of the protractor plate 48 indicated by the index 49 represents the rotation angle around the X axis of the operating device 13 and the X-ray generator 14.

  As shown in FIG. 4, the grip portion 42 has a substantially elliptical cross section so that a photographer can easily grip it. From the front surface side grip portion 42 a protruding from the front surface 41 a of the apparatus main body 41 and the back surface 41 b. The rear surface side gripping portion 42b protrudes. The protrusion amount P1 from which the front surface side gripping portion 42a protrudes from the front surface 41a and the protrusion amount P2 from which the back surface side gripping portion 42b protrudes from the back surface 41b are set to P1 = 4 mm and P2 = 13 mm, for example. In addition, the value of protrusion amount P1, P2 is not restricted to this, It is preferable that they are P1 = 1mm-30mm and P2 = 1mm-50mm.

  As shown in FIG. 2B, the back surface side gripping portion 42 b is formed not only on both side edges of the apparatus main body 41 but also along the entire outer periphery of the apparatus main body 41.

  The apparatus main body 41 has a dimension in which a lateral width W1 in a longitudinal direction from one side edge to the other side edge where the grip portion 42 is arranged is adjusted to a general adult shoulder width so that a photographer can easily grip it. The vertical width W2 in the short direction perpendicular to the longitudinal direction is shorter than the horizontal width W1. For example, the horizontal width W1 = 350 mm and the vertical width W2 = 160 mm are set. The value of the lateral width W1 is not limited to this, and it is preferable that W1 = 250 mm to 500 mm.

  The release buttons 44a and 44b are provided in the vicinity of the grip portion 42, are formed in an oval shape arranged along the grip portion 42, and are released from the side edge of the apparatus main body 41 on which the grip portion 42 is disposed. The dimension D to the outer periphery of 44a, 44b is set to D = 38 mm, for example. Accordingly, the release buttons 44a and 44b can be pressed while the grip portion 42 is gripped. The release buttons 44a and 44b are turned on when at least one of them is pressed from the initial position to the pushed-in position, and both are turned off when the pressure is released and returned to the initial position by spring bias. The release buttons 44a and 44b may be long and narrow along the grip 42, and may be rectangular, for example.

  As shown in FIG. 5, the controller device 13 includes a controller 51. The controller 51 controls the moving device 12 and the operation device 13 according to the operation signals input from the buttons 43a to 43d, 44a, 44b, and 46 of the operation device 13, the console 52, and the operation unit 23 of the X-ray detection device 16. Control all over. The controller 51 includes, for example, a CPU that executes a control program, and is built in the apparatus main body 41. In addition, indicators 47 a to 47 c, brake mechanisms 12 a to 12 d, a drive unit 12 e that drives the column 27, and position detection sensors 12 f provided in each part of the moving device 12 are connected to the controller 51 in a controllable manner. ing.

  The console 52 is an operation terminal installed in an operation room adjacent to the photographing room, for example. The console 52 is a terminal provided with a display for inputting imaging conditions such as a tube voltage, tube current, and exposure time of the X-ray generator 14 and displaying a captured image.

  In the memory of the controller 51, a SID (source image distance) set value from the focal position of the X-ray tube 14a at the time of standing-up imaging to the image receiving surface (FPD detection surface) of the X-ray detection device 15 or standing-up imaging. SID setting values from the focal position of the X-ray tube 14a to the image receiving surface (FPD detection surface) of the X-ray detection device 16 are stored. The SID setting value stored in the memory indicates a SID having a value suitable for standing position shooting or standing position shooting, and is set in advance and stored in the memory at the time of product shipment.

  When the release buttons 44a and 44b are pressed in the state where the direction selection buttons 43a to 43d are turned on and the direction is selected, the controller 51 selects the moving direction and the direction selected by the direction selection buttons 43a to 43c. A release instruction for releasing the lock state is transmitted to the brake mechanisms 12a to 12d corresponding to the rotation direction selected by the selection button 43d. When a plurality of direction selection buttons 43a to 43d are turned on and a plurality of directions are selected, a release instruction is transmitted to the plurality of brake mechanisms 12a to 12d corresponding to the selected plurality of directions. Thereby, at least one of the movement and rotation of the X-ray generator 14 in the direction selected by the direction selection buttons 43a to 43d is brought into a free state. On the other hand, when the pressing operation of the release buttons 44a and 44b is released, the controller 51 transmits a restriction instruction to operate the brake mechanisms 12a to 12d. Thereby, it will be in the locked state in which the movement and rotation of the X-ray generator 14 are controlled.

  When the direction selection buttons 43a to 43d are turned off, the direction selection is canceled. Even if the release buttons 44a and 44b are pressed in the state where the direction selection is released, the release instruction is not transmitted from the controller 51 to the brake mechanisms 12a to 12d.

  The controller 51 acquires the position information of each device, in particular, the position information of the X-ray generator 14 and the X-ray detection devices 15 and 16, based on the output from the position detection sensor 12 f provided in each part of the moving device 12. The position detection sensor 12f includes a micro switch, a photo sensor, or the like.

  Further, the controller 51 determines the image receiving surface of the X-ray detection device 15 from the focal position of the X-ray tube 14a at the time of supine imaging from the position information of the X-ray generator 14, the X-ray detection device 15 and the X-ray detection device 16. SID detection value (reference symbol L1 in FIG. 1), and SID detection value (reference symbol L2 in FIG. 1) from the focal position of the X-ray tube 14a to the image receiving surface of the X-ray detection device 16 at the time of standing imaging. Further, the SID detection value acquired from the position information is compared with the SID setting value stored in the memory, and when the SID detection value matches the SID setting value, the indicators 47a to 47c are turned on. In the present embodiment, the indicator 47a notifies that the SID detection value for supine shooting matches the SID setting value. For example, the SID setting value for supine shooting is set to 100 cm. The indicators 47b and 47c notify that the SID detection value for standing imaging coincides with the SID setting value. For example, the SID setting value for standing imaging is set to 100 cm and 180 cm, respectively. It is properly used depending on the situation.

  Hereinafter, a process when the operation device 13 is operated to move the X-ray generator 14 will be described. When performing standing-up imaging, a radiographer (for example, a radiographer or a doctor) loads the irradiation port of the X-ray generator 14 and the image receiving surface of the X-ray detector 15, that is, the holder 22 with the subject interposed therebetween. The detection surface of the X-ray imaging cassette 20 thus made must face each other. Therefore, when the irradiation port of the X-ray generator 14 is not facing the image receiving surface of the X-ray detection device 15, the direction selection button 43d is turned on and the rotation direction around the X axis is selected, and then the grip portion 42 is gripped. Meanwhile, the release buttons 44a and 44b are pressed. As a result, the rotation of the X-ray generator 14 in the rotation direction around the X-axis becomes a free state, so that the X-ray generator 14 is held while holding the grip portion 42 and pressing the release buttons 44a and 44b. It is possible to face the image receiving surface of the X-ray detection device 15 with the irradiation port facing in the Y-axis direction. After changing the direction of the X-ray generator 14, the direction selection button 43d is turned off to cancel the direction selection.

  After adjusting the direction of the X-ray generator 14, any one of the direction selection buttons 43 a to 43 c is turned on to select a moving direction, and the release buttons 44 a and 44 b are pressed while holding the grip portion 42. Thereby, since the movement of the X-ray generator 14 in any of the X-axis, Y-axis, and Z-axis directions becomes a free state, the grip portion 42 is gripped and the release buttons 44a and 44b are pressed, The position can be adjusted by moving the X-ray generator 14 in the X-axis, Y-axis, and Z-axis directions according to the standing position and body shape of the subject. Further, when this position adjustment is performed, when the SID detection value for standing imaging coincides with the SID set value while the X-ray generator 14 is being moved in the Y-axis direction, the indicators 47b and 47c Either lights up. The photographer looks at the indicators 47b and 47c, recognizes that the SID detection value matches the SID setting value, and can adjust the position of the X-ray generator 14 based on this.

  Furthermore, when adjusting the position of the standing position shooting, if the mode switching button 46 is operated to switch from the normal mode to the tracking mode, the controller 51 adjusts the raising / lowering of the holder 22 based on the operation signal from the operation unit 23. Then, an operation signal for expanding and contracting the column 27 is transmitted to the drive unit 12e. As a result, the X-ray generator 14 moves in the Z-axis direction following the movement of the X-ray imaging cassette 20 in the Z-axis direction, so that the focal position of the X-ray generator 14 and the image received by the X-ray detector 15 are received. Position adjustment in the Z-axis direction can be performed while the distance from the surface is kept constant.

  When performing a saddle position imaging, the photographer puts an object lying on a bed in between and the X-ray generator 14 irradiation port and the X-ray detection device 16 image receiving surface, that is, the X-rays mounted on the tray 19. It is necessary to face the detection surface of the imaging cassette 20. Therefore, when the irradiation port of the X-ray generator 14 does not face the image receiving surface of the X-ray detection device 16, the direction selection button 43d is pressed to select the rotation direction around the X axis, and then the grip portion 42 is moved. The release buttons 44a and 44b are pressed while gripping. As a result, the rotation of the X-ray generator 14 in the rotation direction around the X-axis becomes a free state, so that the X-ray generator 14 is held while holding the grip portion 42 and pressing the release buttons 44a and 44b. It is possible to face the image receiving surface of the X-ray detection device 16 with the irradiation port facing in the Z-axis direction. After changing the direction of the X-ray generator 14, the direction selection button 43d is turned off to cancel the direction selection.

  After adjusting the direction of the X-ray generator 14, the direction selection buttons 43 a to 43 c are pressed to select a moving direction, and the release buttons 44 a and 44 b are pressed while holding the grip portion 42. Thereby, since the movement of the X-ray generator 14 in any of the X-axis, Y-axis, and Z-axis directions becomes a free state, the grip portion 42 is gripped and the release buttons 44a and 44b are pressed, The position of the X-ray generator 14 can be adjusted by moving the X-ray generator 14 in the X-axis, Y-axis, and Z-axis directions according to the height from the floor surface to the top board 17 and the body shape of the subject. Further, when this position adjustment is performed, the indicator 47a is turned on when the SID detection value for the supine imaging coincides with the SID setting value while the X-ray generator 14 is being moved in the Z-axis direction. The photographer recognizes that the SID detection value matches the SID setting value by looking at the indicator 47a, and can adjust the position of the X-ray generator 14 based on this.

  As described above, the release buttons 44a and 44b can be pressed while holding the grip portion 42 to move the X-ray generator 14 in a free state. Even in this case, the position of the X-ray generator 14 can be easily adjusted by moving and rotating the X-ray generator 14. In addition, since the operation device 13 has the device main body 41 formed in a plate shape and the grip portion 42 is formed integrally with the device main body 41, the release buttons 44a and 44b can be arranged in the vicinity of the grip portion 42. it can. Thereby, it is easy to press the release buttons 44 a and 44 b while holding the grip portion 42.

  In the conventional operation device, there is provided a release button for selecting the direction in which the X-ray generator can be moved or rotated, and releasing the restriction in the selected direction to free the movement or rotation of the X-ray generator. The position of the release button varies depending on the selection direction. For this reason, the position of the release button may be far from the position where the controller device is gripped, and operability is degraded. On the other hand, in the operating device 13 of the present embodiment, direction selection buttons 43a to 43d for selecting a direction in which movement and rotation are possible, and a release button for freeing the movement or rotation of the X-ray generator 14 in the selected direction. 44a and 44b are provided, so that the direction selection buttons 43a to 43d can be operated regardless of the position where the operation device 13 is held, and the degree of freedom of arrangement is high. Since 44b is in the vicinity of the grip portion 42, it can be easily pressed while holding the grip portion 42. Therefore, the operation device 13 can improve the operability when the X-ray generator 14 is moved.

  Further, since the release buttons 44a and 44b are formed in an elongated shape arranged along the grip portion 42, the release buttons 44a and 44b can be easily pushed regardless of the position of the grip portion 42, and an unreasonable posture. Therefore, it is not necessary to grip the grip portion 42. Furthermore, since the X-ray generator 14 can be moved in a free state by pressing any one of the release buttons 44a and 44b, the operation can be performed with one hand.

  Further, since there is a space in the vicinity of the grip portion 42, the release buttons 44a and 44b can be formed larger. Alternatively, since the apparatus body 41 can be formed into a plate shape with less unevenness, the operation device 13 can be easily cleaned and disinfected. Since the operation device 13 has a shape with little unevenness, the X-ray generator 14 is not moved carelessly by being caught by a person or an object. Furthermore, since the grip portion 42 is formed integrally with the apparatus main body 41, the number of parts can be reduced and the cost of the operation apparatus 13 can be reduced.

  In the above embodiment, when the X-ray generator 14 is moved by operating the operation device 13, the rotation direction around the X axis is selected to be in a free state, and after the X-ray generator 14 is rotated, The movement direction of the axis, the Y axis, and the Z axis direction is selected to be in a free state, and the position adjustment is performed by moving the X-ray generator 14, but the process when moving the X-ray generator 14 is The movement direction and the rotation direction may be selected in combination, or the movement direction and the rotation direction may be selected all at once.

  Further, in the above embodiment, when the release buttons 44a and 44b are pressed in a state where the movement direction or the rotation direction is selected by the direction selection buttons 43a to 43d, in the direction selected by the direction selection buttons 43a to 43d. Although the example in which the movement or rotation of the X-ray generator 14 is in the free state has been described, the present invention is not limited to this. For example, the direction selection buttons 43a to 43d are not provided on the operation device, and the release buttons 44a and 44b are pressed. When this is done, the movement or rotation of the X-ray generator 14 in a plurality of predetermined directions set in advance may all be in a free state.

  In the above embodiment, the rotation direction that can be selected by operating the direction selection buttons 43a to 43d has been described as an example around the X axis. However, the rotation direction is not limited to this, and the rotation direction can also be selected around the Y axis and the Z axis. You may do it. Moreover, what is necessary is just to increase the number of direction selection buttons, when increasing the rotation direction which can be selected. In the above embodiment, a plurality of directions can be selected by operating the direction selection buttons 43a to 43d. However, the present invention is not limited to this, and any one of the direction selection buttons 43a to 43d is turned on. Thus, only one direction may be selectable. In this case, when any one of the direction selection buttons 43a to 43d is on, it is set so that it does not turn on even if another direction selection button is operated.

  In the above embodiment, the direction selection buttons 43a to 43d are arranged in a line along the left-right direction of the apparatus main body 41, but the position and arrangement of the direction selection buttons 43a to 43b are not limited to this, You may arrange | position in any position of the apparatus main body 41. FIG. Further, the direction selection buttons 43a to 43d are not always fixed at predetermined positions of the apparatus main body 41. For example, the direction selection buttons 43a to 43d are replaced with a plurality of attachment positions provided on the apparatus main body 41 by magnets or adhesive tapes. The position of the direction selection buttons 43a to 43d is changed before the X-ray imaging system 10 is used, for example, when the facility is introduced, and further selected according to the direction selection buttons 43a to 43d whose arrangement has been changed. The direction setting may be changed.

  In the above embodiment, the release buttons 44a and 44b are turned on when one of them is pressed and turned off when both of the presses are released. However, the present invention is not limited to this. May be turned on when is pressed and turned off when one of the pressures is released. In the above embodiment, the release buttons 44a and 44b are provided on the front surface 41a of the apparatus main body 41. However, the present invention is not limited to this, and a release button may be provided in the vicinity of the grip portion 42 on the back surface 41b of the apparatus main body 41. . In this case, since the finger is placed on the back surface 41b side of the apparatus main body 41, the operation of moving the X-ray generator 14 forward becomes simple.

  In the above embodiment, the X-ray generator 14 has been described as being held by a floor-type moving device, but may be held by a ceiling-suspended moving device. Moreover, you may use the wall travel type moving apparatus which laid the fixed rail in the wall. Furthermore, although X-rays have been described as an example of radiation in the above embodiment, the present invention may use radiation other than X-rays, such as γ-rays.

DESCRIPTION OF SYMBOLS 10 X-ray imaging system 11 Imaging apparatus 12 Moving apparatus 13 Operation apparatus 14 X-ray generator 15 X-ray detection apparatus 16 X-ray detection apparatus 20 X-ray imaging cassette 41 Apparatus main body 41a Front surface 41b Back surface 42 Holding part 42a Front side holding part 42b Back side gripping part 43a-43d Direction selection button 44a, 44b Release button

Claims (11)

For moving a radiation generator that is switched between a locked state in which movement and rotation are restricted with respect to a predetermined direction and a free state in which at least one of movement and rotation is possible with respect to the predetermined direction. In the operation device of the radiation generator,
A plate-like device body coupled to the radiation generator;
A release button provided in the apparatus main body, for releasing the lock state of the radiation generator to a free state;
A grip portion disposed along both side edges of the device main body and formed integrally with the device main body ;
A direction selection button provided on the apparatus main body, for selecting a direction in which the radiation generator is in a free state among the predetermined directions;
The radiation generator operating device , wherein when the release button is operated, a direction selected by the direction selecting button is in a free state .   The apparatus main body is provided with the direction selection buttons according to a plurality of the predetermined directions,
  2. The radiation generator operating device according to claim 1, wherein when the release button is operated, the radiation generator is in a free state with respect to a plurality of directions selected by the direction selection button. The apparatus main body has a front surface and a back surface formed in parallel and flat with each other,
The surface is located on the opposite side of the radiation generator;
The back surface faces the radiation generator;
The gripper, 1Mm～30mm protrudes relative to the surface, a radiation generator operation unit according to claim 1 or 2, characterized in that 1mm~50mm projecting to the back side. The apparatus main body, according to any one of claims 1-3, wherein the width from one side edge of the gripping portion is disposed to the other side edge is 250mm~500mm Radiation generator operating device. The release button, the radiation generator operating device according to any one of claims 1 to 4, characterized in that provided in the vicinity of the grip portion. The radiation generator operating device according to claim 5 , wherein the release button has an elongated shape arranged along the grip portion. The device body is provided with a plurality of release buttons,
The radiation generator operating device according to any one of claims 1 to 6 , wherein when any one of the release buttons is operated, the radiation generator enters a free state. The release button is turned on when pressed to turn the radiation generator into a free state, and turned off when pressed to release the radiation generator. radiation generators operating device according to any one of 7. The release button, the radiation generator operating device according to any one of claims 1 to 8, characterized in that provided on one of the surface and the back surface. Wherein said operating device according to any one of claims 1 to 9 and a radiation generator, a moving device for movably holding said radiation generator, further comprising a radiation detector for detecting radiation Radiation imaging system. The radiation imaging system according to claim 10 , wherein the moving device is a floor-type moving device including a rail laid on a floor and a support column that moves along the rail.

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