JP3908228B2 - X-ray equipment - Google Patents

Description

  The present invention relates to an X-ray imaging apparatus, and more particularly to an X-ray imaging apparatus that does not hinder a doctor's movement and treatment around a bed.

  Conventional X-ray imaging apparatuses have been used for imaging aimed at early detection of diseases. With the advancement of medicine, it has become necessary to respond not only to diagnoses but also to the need to take pictures during treatment.

  Conventionally, there is no known apparatus that can efficiently perform treatment and imaging simultaneously with a request for performing X-ray imaging during treatment.

  An object of the present invention is to provide an X-ray imaging apparatus suitable for performing X-ray imaging while a doctor performs treatment.

  Another object of the present invention is to provide an X-ray imaging apparatus capable of positioning a patient at a height at which it is easy to work according to the content of treatment.

In is one X-ray imaging apparatus of the present invention, with tilting the table and the bed placing the subject table, in the longitudinal direction with respect to the width direction of the bed as the perpendicular axis of the bed, the table consists of a table supporting device having a function of vertical and to the X-ray irradiation device located at a distance upwardly from the upper surface of the bed of the table, the X-ray imaging device positioned in the lower portion of the table, said support device has a vertical support mechanism for vertically the a transverse support horizontal support for supporting the table in the width direction of the side of the bed, to support the table in the longitudinal direction of the one end of the bed, the X-ray imaging apparatus, the mounting et is the bottom surface of the other longitudinal end side of the bed, the table, and grip fastening means to the side of the longitudinal direction of both sides of the bed, and the grip Vignetting, the grip, and wherein the lower end is the provided with a pair of leg portions that is rotatably supported to the lower end of the grip fixing means, the foot portion is fixed by sandwiching position said gripping locking means To do. Thereby, it can suppress that a bed support apparatus disturbs treatment.

  According to the present invention, since the vertical support mechanism of the bed is arranged on one side of the bed and on the end side from the longitudinal center of the bed, for example, on the foot side of the patient, The movement of the doctor around the upper body bed and the treatment work are not hindered, and a space for installing another treatment device can be secured.

  FIG. 1 shows an X-ray imaging apparatus having a bi-directional fluoroscopic imaging function according to an embodiment of the present invention. FIG. 2 is an enlarged view of the bed 10. The table 12 of the bed 10 on which the subject is placed has a top plate 14, which is made of a material that transmits X-rays. An X-ray irradiation device 250 suspended from the ceiling 6 is disposed at a predetermined distance from the top plate 14. On the other hand, an X-ray detection means 160 that detects X-rays that have passed through the subject is provided below the table 12 to capture an X-ray image. An image showing the X-ray transmission state is created by the detection means 160 and displayed on the monitor device 400. The operation for maintaining the position and direction of the subject in a desired state by controlling the height and rotation angle, that is, the tilt angle of the table 10, the operation for controlling the position of the X-ray irradiation apparatus 250, and the operation for imaging are the proximity operation console. 500.

  In this embodiment, the bed 10 on which the subject is placed is fixed to the floor 2 of the examination room by the support mechanism 60 in parallel with the walls 4 and 5 of the examination room. The X-ray irradiation apparatus 250 is held on the ceiling 6 via rails 260 and 262 for movement and a support carriage 252. The monitor device 400 and the proximity console 500 are held on rails 450 and 452 provided on the ceiling 6 of the examination room via arms 462 and 562 and a commonly used support carriage 552, respectively. With such a configuration and arrangement, the X-ray irradiation apparatus 250, the monitor apparatus 400, and the proximity console 500 can be arranged away from the periphery of the bed 10. As a result, when X-ray imaging is performed while treating the subject, the area around the bed 10 becomes open, obstructing the doctor's treatment is reduced, the action is easy, and the subject is easy to approach. is there. In addition, it is possible to achieve the purpose and effect such as easy to secure a space for placing other treatment instruments. Furthermore, since the support mechanism 60 is disposed on the wall side of the bed, a space for medical treatment can be effectively secured. Moreover, since the height of the support mechanism 60 is made lower than the top plate 14 of the bed 10 being treated, there is no obstacle during the treatment by the doctor.

  The head side 20 of the table 12 of the bed 10 is open, while a footrest 26 is provided on the foot side 22 of the table 12. When the table 12 of the bed 10 is rotated and stood, the footrest 26 is close to the floor 2, and the examinee puts his feet on the table and stands with his back to the top plate 14 of the table 12, and then the table. Place the subject in the desired position and orientation by laying down. Rails 27 and 28 are attached to both sides of the bed 12, and accessories such as a grip 30, a shoulder pad 34, and a compression cylinder 36 are attached to the rails 27 and 28 as needed. These can be moved along the rails 27 and 28 to positions suitable for the subject. Since the rails 27 and 28 are fixed to the side surface using the thickness of the table 12 instead of the upper surface on both sides of the table 12, there is no need to provide a rail width space on both sides of the table 12, and the bed width is reduced. It has a purpose and effect that it is easy to do work such as medical examination by a doctor. Further, since the rail having the groove has moved from the upper surface of the table to the side surface, there is an object and effect that makes it very easy to wipe off dirt such as VALUE, blood, and other chemicals on the upper surface of the table. The support mechanism 60 is provided so as to be offset from the longitudinal center 38 of the table 12 toward the end, so that obstacles in the arrangement of the devices necessary for the actions and treatment of the doctor around the bed 10 can be eliminated as much as possible. effective. In this embodiment, the bed 12 is not on the head side 20 but on the foot side 22. The treatment of the subject is more likely from the upper body to the head. In this embodiment, the head side can be opened from the center 38 of the bed 12. In addition, the corners of the cover of the support mechanism 60, that is, the case 90, are rounded, and the opposite side of the bed is curved so that the thickness of both sides 92 of the case 90 with respect to the distance from the table edge of the central portion 91, ie, the thickness. Is reduced. This avoids obstacles such as treatment as much as possible, and prevents doctors and nurses from colliding and getting injured.

  FIG. 3 is an embodiment showing a control mechanism for the vertical and rotational or tilting of the table 12. A floor base 62 is fixed to the floor 2 of the examination room with four anchor bolts. The hydraulic cylinder 80 is fixed to the floor base 62 and moves up and down a horizontal support 68 that supports the table 12. The horizontal support 68 is fixed to the upper end of the lift cylinder 80 by a lift moving frame 64 and a horizontal support fixing device 66. The encoder 45 that detects the absolute height of the vertical movement detects the height of the top plate 14 of the table 12 from the movement of the belt fixed to the lifting and lowering moving frame 64. Further, a descending overrun switch 84 for detecting descending overrun and an ascending overrun switch 86 for detecting ascending overrun are provided so that the ascending and descending is not performed beyond the safe range. These devices as a whole function as a bed support mechanism and are covered with a case 90.

  The hydraulic cylinder 80 is a three-stage telescopic system, and its drive hydraulic pressure is produced by the hydraulic unit 72 of the control box 70 and sent to a valve unit 76 controlled by a computer through a pipe 74, and from this valve unit 76 through a pipe 78. It passes through the check valve 79 and is added to the hydraulic cylinder 80. Since the hydraulic cylinder is used, the whole bed support mechanism is small, and there is the purpose and effect that the periphery of the bed becomes more open. In addition, the combination of the hydraulic cylinder 80 and the lifting frame 64 can reduce the width of the table support mechanism, reduce the thickness of the case 90 that wraps them, and does not interfere with doctors' treatment even if it is located on the side of the table. There is an effect. The check valve 79 has a function of closing the valve and shutting off the communication between the pipe 78 and the cylinder 80 so that the hydraulic pressure in the cylinder 80 does not drop when the hydraulic pressure of the pipe 78 is lowered due to some abnormality. As a result, it is possible to prevent the table from being lowered due to the above-described abnormality and to maintain safety. Even if there is a mistake in the operation of raising or lowering the table, the overrun switches 84 and 86 detect movement exceeding the safe movement range, and the computer automatically controls the valve unit 76 with these outputs. Since the ascending or descending movement is stopped, there is an effect of maintaining safety.

  The rotation of the bed, that is, the inclination is controlled by the hydraulic motor 104 for raising and lowering. A hydraulic pressure of a predetermined pressure is sent from the hydraulic unit 72 to the raising hydraulic motor 104 via the pipe 74, the valve unit 76, and the pipe 102. The motor 104 is structured to rotate when the hydraulic pressure is fed. This rotation is transmitted to the worm gear irregular machine 106, the angle with respect to the lateral support 68 changes, and the table 12 rotates relative to the lateral support 68. This rotation direction is performed by valve switching of the valve unit 76. The rotation angle is detected by the raising / lowering encoder 108, and the rotation overrun is detected by the raising / lowering overrun switch 110. Since the tilt of the table is controlled by the hydraulic motor 104, there is an effect that the entire apparatus is reduced in size. The motor 104 includes a speed reducer 106, and the anomaly machine 106 has a self-locking function. Therefore, when the hydraulic pressure of the pipe 102 becomes abnormal for some reason, the rotation of the motor 104 is locked by the speed reducer 106. The table tilt is kept unchanged. This has the effect of maintaining safety.

  FIG. 4 is an explanatory view of the grip 30 of the bed. The grip 30 is detachably attached to the rails 27 and 28 on both sides of the table by a fixing device 32. The grip 30 has a grip foot 31, and the grip foot 31 is configured to sandwich the fixing device 32, and is attached to a side portion of the fixing device 32 to be rotatable. When the doctor rotates the grips 30 on both sides to the upper surface of the table 12, the table-side surface of the grip foot 31 hits and is fixed to the surfaces of the rails 27 and 28. On the other hand, when the grip 30 gets in the way, such as when the subject is moved from the stretcher to the top plate, the connection between the grip foot 31 and the fixing device 32 is rotated by opening the grip outward, and the grip 30 falls down. In addition, the grip fits under the table so as to be inward of the rail surface, which is the side of the table, by the amount used to contact the top plate surface of the bottom rail of the lower side of the grip 30. For this reason, there is an effect which does not get in the way. Further, the head side of the grip is inclined at an angle of, for example, about 45 degrees and connected to the lower side of the grip. This oblique part, where the head is lowered in some cases when taking an X-ray picture, can easily apply force by grasping it, and can reduce the anxiety that the subject feels that the body may slip and fall. Note that the side of the foot of the grip may be a shape close to 90 degrees as usual, instead of being inclined.

  5 and 6 show the control of the diaphragm mechanism 120, which is an X-ray mask function. The table 12 of the bed 10 has a top plate 14 as an upper plate and a diaphragm mechanism 120 having a mask function below the top plate 14. As shown in FIG. 5, the table 12 is rotatable as indicated by an arrow, the diaphragm mechanism 120 is movable in the X and Y directions, and the imaging device 160 is also movable in the X and Y directions.

The aperture mechanism 120 includes upper and lower divided masks 124 and 125 and a left and right divided masks 126 and 127 that are movably attached to the aperture mechanism frame 122, and an upper and lower mask motor 130 and a wire rope 132 that move the upper and lower divided masks 124 and 125. The left and right mask motors 134 and wire ropes 136 for moving the divided masks 126 and 127, the origin detecting sensor 140 for detecting the origin of the upper and lower divided masks 125, the overrun sensor 142 for detecting overrun, and the origin of the left and right divided mask 126 are set. It comprises an origin detection sensor 144 for detecting and an overrun sensor 146 for detecting overrun.

  X-ray irradiation is harmful to the human body, and we want to limit the irradiation location to the necessary parts. The irradiation part is narrowed down by an X-ray irradiation apparatus, but it is preferable to take only the necessary part of the X-ray photograph. For this reason, the upper and lower mask motors 130 and the left and right mask motors 134 are controlled by the operation of the console 500 described later, and the surrounding ranges of the upper, lower, left and right masks 124, 125, 126, and 127 are controlled to desired values and positions. This has the purpose and effect of improving image quality as well as preventing X-ray scattering. In order to improve control accuracy, each of the motors 130 and 134 is a DC motor. Here, the vertical direction indicates the X direction in FIG. 5, and the horizontal direction indicates the Y direction.

FIG. 7 shows the imaging mechanism 160 located in the lower part of the bed 10. Rails 154 that hold the imaging mechanism 160 on both inner sides of the support frame 150 provided at the lower part of the table 12 and are movable in the X direction indicated by the arrow 152 are provided. In the figure, only one side is shown. In this embodiment, the term rail is used in a very broad sense. For example, only a concave groove that is not a convex structure extends long and is moved while being guided by this groove is also described as a rail including the long elongated groove. The position of the image pickup mechanism 160 held by the rail 154 is controlled by a motor 156 fixed to the support frame 150 and a rotation of the motor 156 and a chain 158 that moves the image pickup mechanism 160 along the rail 154. A signal indicating the value of this position is detected by the absolute value sensor 162 and generated. In order to prevent the movement of the imaging mechanism 160 in the X direction from exceeding a safe range, two overrun detection switches 164 and 165 for detecting that the predetermined range has been exceeded are provided in the video system moving frame 166. ing.

An image receiving device 168 that converts X-rays into light having an intensity corresponding to the intensity is attached to the video system moving frame 166 via an attachment frame 170. The light produced by the image receiving device 168 is guided to the camera 174 via the optical path 172. An X-ray image detected by the camera 174 is displayed on the monitor 400 and is recorded and photographed by an operation. FIG. 8 is an enlarged view of the image receiving device 168. The movement control of the imaging device 168 in the Y direction indicated by an arrow 176 in FIG. 8 is performed by a motor 178 and a speed reducer 180 fixed to the moving frame 166, a rack 184 fixed to the mounting frame 170 and a meshing speed reducer 180. This is done by the pinion 182 being moved. The entire moving frame 166 is moved in the X direction by the motor 156 and the chain 158, and is moved in the Y direction by the pinion 182 and the rack 184 by the rotation of the motor 178 in the moving frame 166. The position in the Y direction is detected by an absolute value sensor 186 that receives the rotation of the pinion via the belt 188. Since the image pickup apparatus is moved by this mechanism, the moving apparatus in the X direction and the Y direction can be reduced in size and can be made thinner, and restrictions on the height of the bed are reduced. Therefore, even if the table 12 is lowered as much as necessary, it does not hit the floor of the examination room. For this reason, when photographing while treating, the height of the patient on the table can be maintained at a height that is easy to treat. In addition, since these devices are located below the bed and do not protrude from the periphery of the table, it is possible to secure a space for other treatment instruments and do not hinder the movement of the doctor nurse.

  FIG. 9 is a diagram illustrating a state where a doctor performs treatment, or a diagram illustrating a state where the head of a subject is lower than a foot in X-ray imaging. If the table 12 is low, it is necessary to bend the knee when a doctor performs treatment, and sufficient treatment cannot be performed. If it is too high, treatment cannot be performed smoothly. Therefore, when treating, it is desirable that the height L2 of the top plate 14 which is the upper surface of the table 12 is 800 mm or more and the height adjustment range L1 is about 400 mm. As for the height from the floor, it is desirable to move up and down in the range of 800 mm to 1200 mm. When the top plate 14 is lowered, if the upper end of the support mechanism 60 of the table 12 is above the top plate 14, it becomes an obstacle to treatment. Therefore, the cylinder 80 in the support mechanism 60 is a three-stage cylinder, and the height in the contracted state is kept low. Further, since the height of the imaging device 160 is kept low, the table 12 can be lowered. The vertical movement speed of the table is not constant but variable. This is because it is possible to select whether to move slowly according to the health condition of the subject or to move the table faster in order to finish X-ray imaging quickly. It is also possible to determine a plurality of moving speeds in advance and select them by a doctor or a laboratory technician, which can reduce the burden on the doctor and concentrate on treatment such as surgery.

  A broken line shows the case where the table 12 is rotated in the direction of lowering the head. This operation is performed at a remote or proximity console. When this operation instruction is issued, the table and support mechanism 60 are automatically raised to a predetermined height and the head side of the table is lowered. At this time, the rising speed of the table is made faster than the tilting speed of the table. In addition, when a plurality of ascent speeds can be set, the table automatically rises at a speed faster than the minimum ascent speed. This is to cause the tilting operation to be performed as quickly as possible. That is, when the state of the stomach is radiographed, an operation of lowering the head may be performed, but the imaging time cannot be made very long due to the state of the stomach in the stomach. The purpose is to cope with such a situation.

  The reason why the head-side end lower surface 13 of the table 12 is cut at about 45 degrees is that it does not hit the floor even when the table is inclined as shown in the figure. The reason why the head-side end lower surface 173 of the imaging device 160 is cut in the same manner is to prevent it from hitting the floor surface. As can be seen from this figure, the support device 60 of the table 12 is provided on the foot side from the center in the longitudinal direction of the table. This is to ensure as much as possible the purpose of the treatment from the head to the abdomen without obstructing the behavior of the doctor and the place where the treatment instrument is installed.

  FIG. 10 illustrates the insertion of a film called cassette 190. This film is a film that is sensitive to X-rays, and can produce a shade of colored black according to the intensity of the X-rays. This film is stored in a case and called a cassette. The cassette 190 is inserted under the top plate 14 and the aperture mechanism 120 of the table 12 through the insertion port 192 and is inserted into the support frame 150 constituting the lower portion of the table 12. The table 12 is formed by providing a relatively hard top plate 14 and rails 27 and 28 for attaching accessories to both sides. The cassette 190 is inserted inside the table 12 and a diaphragm mechanism 120 is provided. The image receiving device 168 of the imaging device is suspended. These devices are damaged when they collide with other devices, but are protected at the side portion to which the top plate 14 of the table 12 and the rails 27 and 28 of the table 12 are attached.

  FIG. 11 is a diagram using a film changer 198 that automatically replaces a film sensitive to X-rays and takes several X-ray images instead of the imaging device 160. The imaging device 160 moves to the foot side of the table 12 by the operation by the proximity console 500. This movement is performed by a movement motor 156 along the rail 154 of the support frame 150 under the table. The film changer 198 has a moving vehicle underneath and is inserted inside the rails 154 on both sides of the support frame 150 to perform continuous shooting. With such a configuration, the film changer 198 can be easily inserted in a short time.

  In FIG. 1, the X-ray irradiation apparatus 250 is suspended so as to be movable by X-direction rails 260 and 262 fixed to the ceiling 6 and Y-direction rails 264 and 266 held by the rails. The X-direction rails 260 and 262 are fixed to the ceiling in the X direction, which is the longitudinal direction of the bed 10, and the X-ray irradiation apparatus 250 moves along the X-direction rails 260 and 262 so that the X-ray irradiation apparatus 250 It moves in the X direction, which is the longitudinal direction. The Y-direction rails 264 and 266 supported so as to be movable are parallel to the direction Y of the short side of the bed 10. Therefore, the X-ray irradiation apparatus 250 can be moved along the Y direction of the bed 10 by moving along the Y direction rails 264 and 266.

  In this specification, the rail is used in a very broad sense, and includes not only a long shape of a convex shape but also a long shape of a concave shape, and a guide that extends long in the concave shape. Expressed as rail.

  The movement mechanism in the X direction and the Y direction is shown in FIGS. The X-direction motor 270 is fixed to the Y-direction rail 264, and the rotational driving force of the X-direction motor 270 is transmitted to the pinions 274 meshing with the racks 276 provided on the X-direction rails 260 and 262 via the harmonic speed reducer 272. It is done. By controlling the rotation direction and speed of the X direction motor 270, the movement direction and movement speed of the Y direction rails 264 and 266 can be controlled. Guide rails 280 and 282 are provided on the X-direction rails 260 and 262, respectively. The guide wheels 286 provided on the Y-direction rails 264 and 266 move along the guide rails 280 and 282, respectively. The Y-direction rails 264 and 266 are moved by the motor 270. The guide wheels 286 of both rails 264 and 266 are covered with an LM guide 284.

FIG. 13 is a diagram for explaining the movement of the box 290 relative to the Y-direction rails 264 and 266. A rack 296 is provided on the Y-direction rail 264, and the pinion 294, whose rotation is transmitted from the motor 292 fixed to the box 290 via the reduction gear, meshes with the rack 296 and the box 290 moves according to the rotation direction and speed of the motor 292. To do. Guide rails 300 and 302 are provided inside the Y- direction rails 264 and 266, respectively, and a guide wheel 306 provided in the box moves along the guide rails. An X-ray irradiation apparatus is suspended in the box 290.

  Here, although not shown in FIGS. 12 and 13, the Y rail and the box 292 are provided with microswitches, which detect that they are out of the safe area, send a signal to a computer (not shown), give an alarm, and automatically Stop. 1 has built-in motors and speed reducers 270, 272, 292, a box 290, and the like shown in FIGS. With the above configuration, the X-ray irradiation unit can be easily moved in the X direction and the Y direction, and the X-ray irradiation unit and the imaging unit can be smoothly moved to a predetermined relationship without moving the bed, so that necessary imaging can be performed. . In addition, since the bed does not move in the X and Y directions, a therapeutic instrument can be attached, and the burden on the patient can be reduced. The control motor uses a direct current value, which allows precise speed control and direction control.

  Next, the proximity console 500 will be described. As will be described later, the operation panel is provided in a separate room to protect doctors and X-ray technicians from X-ray exposure, and is operated while talking to the subject through a window and using a device such as a microphone. It is normal to do. However, X-ray confirms the state of the subject's body and the insertion state and position of the body while performing surgery, such as insertion of a treatment device into the blood vessel, due to medical progress. It has become necessary to do. For this reason, in addition to the original operation panel in a separate room, a proximity console that can be operated at that place while performing the above treatment and surgery has become indispensable.

  This proximity console will be described with reference to FIGS. 14, 15, and 16. FIG. The proximity console 500 has a narrow front side, a wide side on one side, and a shape that allows the front-rear relationship to be understood at a glance. This is because doctors and nurses can concentrate on other tasks such as treatment. The case 510 having such a shape covers the surface with a soft material such as urethane foam. This is because even if you touch or hit the console while concentrating on other tasks, you will not be injured. Further, the four corners 514, 515, 516, and 517 of the case 510 are cut off, and it is necessary for the purpose and effect to be rounded by 5 mm or more, preferably 20 mm or more. In this embodiment, the corners 514 and 517 are rounded by 30 mm, and the corners 515 and 516 are rounded by 50 mm. There is a grip 512 in the foreground that can be used to pull the console. The back of the grip 512 has a width of 30 mm to 50 mm and a horizontally long hole 520. Even if the grip 512 is not gripped, the console can be moved back and forth, left and right, and up and down simply by putting a hand into the horizontally long hole 520. The corner 522 at the back of the longitudinal hole is also rounded and is 15 mm. However, since it is not a convex angle but a concave angle, it can be small and has an effect of easily wiping off dirt such as blood and chemicals. Inside the case 510, there are a number of operation switches, joysticks, and display devices.

  15 is a side view, and FIG. 16 is a cross-sectional view. A switch and a joystick are provided at the center of the case 510, and a back cover 524 is provided on the back surface. The back cover 524 is held by an arm that is hung from the ceiling or a stand having wheels that will be described later. Compared to the case 510, the back cover 524 is small, and the case has a curved surface and is easy to grip. In this embodiment, the periphery 526 is a curved surface close to a circle. There is a recessed groove 527 on the back side to make a hand catch. The thickness 528 is preferably 20 mm to 60 mm in view of the ease of movement of the proximity console. The joystick is disposed within the projection surface of the back cover 524, and the problem of the dimensional relationship of the detection part of the joystick is solved by the thickness of the back cover 524.

  In FIG. 14, there is a shooting state display unit 546 that displays shooting conditions and states at the center of the rear side 540. Next to that, there is an interlock release display section 544 that indicates the release state of the interlock. By bringing the display unit outside, that is, in the back, the display is easy to see without being disturbed. There is an overall lock switch 542 at the left end. This switch 542 prevents the malfunction of the switch or joystick on the operator console when it is accidentally touched or hit by an object, and has the effect of increasing the concentration of doctors and nurses on treatment. Yes. An emergency switch 548 is provided at the right end. This is displayed in red, and pressing this switch stops all operations. This switch 548 is located at the back of the right end and is often noticeable, and is effective for accurate and quick operation.

  The switch group 552 has a function of controlling the position of the X-ray irradiation unit, and can move along the X direction rail and the Y direction rail, control the arm, and set the height. The switch 554 is an X-ray irradiation unit height setting switch, and two preset heights are prepared. By selecting one of the switches, the preset height can be selected and automatically positioned. Makes it possible to operate accurately. The switch group 556 has an X-ray imaging condition setting function, and the switch group 558 selectively determines the size of the X-ray imaging unit, for example, 16 inches or 12 inches. A switch group 560 is a selection switch that determines the arrangement of the captured images. For example, the switch group 560 determines whether four images are arranged on one sheet or two images are arranged on one sheet. One of the monitor displays follows this condition and the other displays an enlarged view. A switch group 562 is a screen layout inversion or upside down switch, which can operate to display an X-ray image, and an imaging screen follows this. The switch group 564 has an automatic photographing control function and a setting function. The switch group 590 has an aperture control function, the switch 591 has a parallel movement control of the mask in the X direction and the Y direction, and the switch group 592 has a function to move the mask independently, and the movement amount and direction are controlled by the joystick 594. Is called.

  The switch group 610 has a function of determining an X-ray irradiation range called a filter, and a switch 612 selectively determines whether the irradiation range is widened or narrowed. This filter is provided in the X-ray irradiating section, and is performed by, for example, four diaphragm plates, and the movement of each of these diaphragm plates can be positioned for each with a joystick 614. The switch group 570 has a function of controlling the relationship between the X-ray irradiation unit and the bed, the switch 576 has a function of controlling the raising and lowering of the table 10, and the switch 574 maintains the tilt of the table 12 as it is and only the X-ray irradiation angle. The switch 572 has a function of standing a table for getting on and off the subject. The switch 578 has a function of lowering the head side of the table. The rotation or tilt of the table can be freely controlled with a joystick. The table tilt is operated by operating both the switch 578 and the joystick 580 in order to prevent malfunction, and it is possible to prevent malfunction caused by removal of an object and to improve safety. The switch group 566 has a function of operating a compression tube, and the joystick 568 has a function of freely operating a compression cylinder. The switch group 620 has an X-ray imaging function, and the switch 622 has a function of weakening an X-ray dose for image confirmation before imaging. The switches 624 and 626 have functions of adjusting imaging timing and stopping X-ray irradiation after a predetermined time. The joystick 628 has a function of controlling the position of the light receiving unit, and includes a photographing instruction switch on the top thereof. Since the joystick 628 has a shooting instruction switch at the same time, it is possible to capture the optimum timing and to improve accuracy and speed up.

  In the above arrangement, since the operation switch is arranged next to the joystick, it is easy to use because the final alignment using the nerve and the fine adjustment joystick are located on the front most frequently. Although the initial setting switch group 556 is in the back, the frequency of use is low and the start of the examination starts, so there is little use of other nerves, making the entire proximity console compact and easy to use.

  FIG. 17 shows a floor-mounted proximity console 800 according to another embodiment. A column 640 is attached to a table 630 having four cars 634, and a proximity console 500 is fixed to the column 640. The four cars 634 are attached so as to be able to rotate 360 degrees as indicated by arrows. The table 630 has a foot switch 632, which has a function of irradiating weak X-rays in order to determine an imaging position. The upper surface of the proximity console 500 has a height of 800 mm to 1000 mm, which is a height suitable for standing by a doctor or engineer from the floor 2.

  The operating device having the floor-mounted proximity console 800 has the same effect as described in the arm-type fixed proximity console 500, but also has the following effects. Since the height is predetermined, the floor-mounted proximity console 800 can be moved to the desired position by moving it sideways.

  FIG. 18 is a top view of the room, where the imaging room 701 and the operation room 700 are separated by a wall, and the operation is performed through the window. The bed is placed in parallel with the wall, and X-direction rails 260 and 262 are fixed to the ceiling according to the X-direction which is the longitudinal direction of the bed. In this embodiment, the monitor 400 and the proximity console 500 are supported by the same X-direction rails 260 and 262. A dotted line 706 indicates a signal line. Since the same X-direction rails 260 and 262 are used, the whole is simple and inexpensive. In addition, since the monitor 400 and the carriage 552 of the proximity console 500 are set so as to move outside the movement range of the carriage 252 of the X-ray irradiation unit, it is safe and may exceed these movement ranges. Since the overrun detection switches are provided for the contents, it is safe to cope with malfunctions.

  FIG. 19 shows the same operation, effect, and purpose in other embodiments. Rails 720 and 722 for monitor or proximity operation table wires are provided in parallel with the moving rails for the X-ray irradiation apparatus.

  According to each embodiment of the present invention described above, the bed vertical support mechanism is arranged on one side of the bed and on the end side from the center in the longitudinal direction of the bed, for example, on the foot side of the subject. Therefore, the movement of the doctor around the bed of the upper body of the person to be treated and the treatment work are not hindered, and a space for installing another treatment instrument can be secured.

It is a figure which shows the structure of the X-ray imaging apparatus which has a two-way fluoroscopic imaging function by one Embodiment of this invention. It is an enlarged view explaining the structure of a bed. It is a figure which shows the structure of the control mechanism which controls the attitude | position of a bed. It is a figure which shows the structure of the grip of a bed. It is a figure which controls control of the aperture mechanism which performs the X-ray mask function. It is a figure which controls control of the aperture mechanism which performs the X-ray mask function. It is a figure which shows the structure of the imaging mechanism which is a X-ray detection means. It is an enlarged view which shows the structure of the image receiving apparatus of an imaging mechanism. It is a figure explaining the state where a doctor treats a patient. It is a figure explaining insertion of the cassette with which the film was loaded. It is a figure explaining insertion of the film changer replaced with a cassette. It is a figure explaining the structure of the moving mechanism of X-ray irradiation apparatus. It is a figure explaining the structure of the moving mechanism of X-ray irradiation apparatus. It is a front view which shows the structure of a proximity console. It is a side view which shows the structure of a proximity console. It is sectional drawing which shows the structure of a proximity console. It is a front view which shows the floor-standing console which is another structural example of a proximity console. It is the layout seen from the room explaining the arrangement | positioning condition of the X-ray imaging apparatus by one Embodiment of this invention. It is the layout seen from the room explaining the other example of the arrangement | positioning condition of the X-ray imaging apparatus by one Embodiment of this invention.

Explanation of symbols

4, 5 Wall of the examination room 6 Ceiling 10 Bed 12 Table 14 Top plate 26 Footrest 30 Grip 34 Shoulder pad 36 Compression tube 60 Support mechanism 70 Control box 72 Hydraulic unit 80 Hydraulic cylinder 160 X-ray detection means 168 Image receiving device 190 Cassette 198 Film Changer 250 X-ray irradiation device 400 Monitor device 500 Proximity console

Claims (10)

A table on the bed on which the subject is placed;
A table support device having a function of inclining the table with an axis in the width direction of the bed that is perpendicular to the longitudinal direction of the bed and moving the table up and down;
An X-ray irradiation apparatus positioned at a distance from the upper surface of the bed table;
An X-ray imaging device located at the bottom of the table,
The support device includes a horizontal support body that supports the table from a side portion in the width direction of the bed, and a vertical support mechanism that moves the horizontal support body up and down, and the table is supported at one end side in the longitudinal direction of the bed. Support,
The X-ray imaging device is attached to the bottom surface on the other end side in the longitudinal direction of the bed,
The table is provided with grip fixing means and grips on both side surfaces in the longitudinal direction of the bed,
X-ray characterized in that the grip includes a pair of feet whose lower ends are rotatably supported by the lower end of the grip fixing means, and the feet are fixed in a posture sandwiching the grip fixing means. Shooting device. In claim 1,
The X-ray imaging apparatus is characterized in that the vertical support mechanism moves the table up and down within a range of 800 mm to 1200 mm from the floor when the table is placed horizontally. In claim 1,
The table is provided with accessory mounting means on both side surfaces in the longitudinal direction of the bed,
An X-ray imaging apparatus, wherein the grip fixing means is attached to the accessory attaching means. In claim 1,
X-ray imaging apparatus being characterized in that cut the lower surface of the table in the longitudinal direction of the other end side of the bed in which the X-ray imaging apparatus is mounted. In claim 1,
X-ray imaging apparatus characterized by comprising an insertion port for inserting the X-ray imaging film to the lower surface of said table in the longitudinal direction of the other end side of the bed in which the X-ray imaging apparatus is mounted. In claim 1,
The table has a top plate on its upper surface, and provided with rails for attaching the grip fixing means and accessories on the side surfaces of both sides in the longitudinal direction of the bed,
Wherein the top plate and the inside of the space created by the side surfaces of both sides, and can be inserted the X-ray imaging film from the longitudinal other end side of the bed in which the X-ray imaging device is attached X-ray imaging apparatus. According to claim 1, wherein the X-ray imaging apparatus, X-ray imaging apparatus underside of the longitudinal other end side of the bed that the X-ray imaging device is mounted is characterized in that it is cut. In claim 1,
The grip portion, at least, the X-ray imaging apparatus in which the longitudinal direction of the other end side of the bed that X-ray imaging device is attached to and being inclined. In claim 1,
The X-ray image capturing apparatus includes an X-ray image receiving unit and a guide unit that moves the X-ray image receiving unit,
The X-ray imaging apparatus, wherein the X-ray image receiving unit is attached to be movable in the longitudinal direction of the bed through the guide unit. In claim 9,
The X-ray image receiving unit is attached to the guide unit via a moving frame, and is movable in the width direction of the bed, which is perpendicular to the longitudinal direction of the bed, via a moving mechanism provided on the moving frame. An X-ray imaging apparatus characterized by being attached to the X-ray apparatus.

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