WO2020084706A1 - Dispositif de fluoroscopie à rayons x - Google Patents

Dispositif de fluoroscopie à rayons x Download PDF

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Publication number
WO2020084706A1
WO2020084706A1 PCT/JP2018/039491 JP2018039491W WO2020084706A1 WO 2020084706 A1 WO2020084706 A1 WO 2020084706A1 JP 2018039491 W JP2018039491 W JP 2018039491W WO 2020084706 A1 WO2020084706 A1 WO 2020084706A1
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WIPO (PCT)
Prior art keywords
bed
ray tube
column
ray
top plate
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PCT/JP2018/039491
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English (en)
Japanese (ja)
Inventor
啓太 奥谷
雅大 田中
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株式会社島津製作所
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Priority to PCT/JP2018/039491 priority Critical patent/WO2020084706A1/fr
Publication of WO2020084706A1 publication Critical patent/WO2020084706A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/04—Positioning of patients; Tiltable beds or the like

Definitions

  • the present invention relates to an X-ray fluoroscopic imaging apparatus that performs fluoroscopic imaging or radiography.
  • the upright stand includes a stand column S 1 and a tray.
  • the stand column S 1 is configured to support a subject (not shown in FIG. 16) in a standing posture.
  • the tray is equipped with the X-ray detector D 1 .
  • the X-ray detector D 1 is configured to move up and down with respect to the stand column S 1 in the body axis Z direction of the subject.
  • the standing stand is used exclusively for shooting.
  • the standing stand shown in FIG. 16 is equipped with a suspension holding column (not shown in FIG. 16) as disclosed in Patent Document 1: Japanese Patent Laid-Open No. 2007-244569.
  • the suspension holding column is configured to support an X-ray tube (not shown in FIG. 16). Further, the suspension holding column is suspended and held from a ceiling suspension holding mechanism (not shown in FIG. 16), and the suspension holding mechanism is configured to move on a rail (not shown in FIG. 16) provided on the ceiling. .
  • the X-ray fluoroscopic imaging apparatus includes a bed B and a fluoroscopic table support S 2 .
  • the bed B has a top plate, and is configured to place a subject (not shown in FIG. 17) on the top plate.
  • the fluoroscopic table support S 2 is supported by the bed B, and the X-ray tube T 2 and the X-ray detector D 2 are arranged so as to face each other with the bed B sandwiched therebetween and supported.
  • the fluoroscopic table support column S 2 is configured to move in the longitudinal direction of the table (the body axis Z direction of the subject), and the axis of the horizontal axis Y in the lateral direction of the table orthogonal to the longitudinal direction.
  • the bed B is configured to rotate around the heart.
  • the couchtop can be erected in an upright / horizontal state by rotating the bed B around the axis of the horizontal axis Y.
  • the bed B When the subject in the recumbent position is placed on the table for fluoroscopy or imaging, the bed B is rotated about the axis of the horizontal axis Y until the table is in a horizontal state. After that, the subject in the recumbent posture is placed on the tabletop in a horizontal state, and the support S 2 for the fluoroscopy table is moved in the longitudinal direction to the fluoroscopic imaging position, so that the support S 2 for the fluoroscopy table is supported. Further, the X-ray tube T 2 and the X-ray detector D 2 are moved to the fluoroscopic imaging position while being arranged to face each other.
  • X-rays are radiated from the X-ray tube T 2 toward the X-ray detector D 2 to perform fluoroscopy or radiography.
  • the X-ray tube T 2 and the X-ray detector D 2 move in the longitudinal direction to image a subject in a lying position, or to perform a long image of a subject in a lying position, a horizontal state
  • the fluoroscopic table support S 2 moves in the longitudinal direction.
  • the X-ray tube T 2 and the X-ray detector D 2 supported by the support S 2 for the fluoroscopy table are imaged at their respective positions in a state of being opposed to each other.
  • the bed B When the subject in an upright posture is placed on the table for fluoroscopy or imaging, the bed B is rotated around the axis of the horizontal axis Y until the table stands. After that, the subject in the standing posture is placed on the standing table, and the support S 2 for the pedestal is moved in the longitudinal direction to the fluoroscopic imaging position, so that the support S 2 for the pedestal is supported. Further, the X-ray tube T 2 and the X-ray detector D 2 are moved to the fluoroscopic imaging position while being arranged to face each other. Then, X-rays are radiated from the X-ray tube T 2 toward the X-ray detector D 2 to perform fluoroscopy or radiography.
  • the fluoroscopic table support S 2 moves in the longitudinal direction.
  • the X-ray tube T 2 and the X-ray detector D 2 supported by the support S 2 for the fluoroscopy table are imaged at their respective positions in a state of being opposed to each other.
  • the movement of the fluoroscopic table support S 2 , the X-ray tube T 2, and the X-ray detector D 2 in the longitudinal direction is a vertical movement.
  • the suspension holding mechanism moves on a rail provided on the ceiling, so that the suspension holding mechanism is suspended from the standing stand and is suspended and held to a preset fluoroscopic imaging position. Move the stanchions and X-ray tube.
  • imaging it is necessary to match the X-ray irradiation position (X-ray tube position) and the X-ray detector D 1 detection position (X-ray detector D 1 position). Therefore, the height of the X-ray tube is adjusted to the height of the X-ray detector D 1 so that the X-ray tube and the X-ray detector D 1 are arranged to face each other, and the suspension holding column is vertically expanded and contracted.
  • FIG. 18 there is an X-ray fluoroscopic imaging system using the X-ray fluoroscopic imaging apparatus shown in FIG. 17 and the standing stand shown in FIG. 16 (see, for example, Patent Document 3).
  • the standing stand is an external device when viewed from the X-ray fluoroscopic apparatus, and each of the components in the standing stand shown in FIG. 16 (the stand column S 1 and the X-ray detector D 1 is included). Note that) is not included in the configuration of the X-ray fluoroscopic imaging apparatus shown in FIG.
  • the X-ray fluoroscopic imaging apparatus shown in FIG. 18 includes a bed B and a fluoroscopic table support S 2 . Further, around the axis of the horizontal axis Y in the lateral direction of the table orthogonal to the longitudinal direction, which is configured so that the fluoroscopic table support S 2 is moved in the longitudinal direction of the table (Z axis direction of the subject).
  • the bed B is configured to rotate.
  • the X-ray fluoroscopic imaging system shown in FIG. 18 is an X-ray tube in the X-ray fluoroscopic imaging apparatus shown in FIG. 17, instead of the X-ray tube for general imaging supported by the suspension holding column in the standing stand shown in FIG. the T 2 used. Therefore, the X-ray tube T 2 is configured to rotate around the axis of the horizontal axis Y with respect to the fluoroscopic table support S 2 .
  • the horizontal top plate is in the upright state.
  • the bed B is rotated by 90 ° about the axis of the horizontal axis Y until that time (see FIG. 18B).
  • the X-ray tube T 2 is rotated 180 ° about the axis of the horizontal axis Y with respect to the perspective stand upright S 2, X from X-ray tube T 2 toward the X-ray detector D 1
  • the posture of the X-ray tube T 2 is changed to a state in which irradiation with a ray is possible (see FIG. 18B).
  • the vertical imaging range is limited by the operating range of the X-ray fluoroscopic imaging apparatus shown in FIGS.
  • the X-ray tube of the X-ray fluoroscopy apparatus can operate only in the range from the upper end to the lower end of the top plate. Therefore, as compared with an X-ray tube of an apparatus dedicated to general radiography (X-ray tube for general radiography supported by a suspension holding column), the vertical radiographic range is narrow and limited. For example, it is desirable that the tray (or the X-ray detector mounted on the tray) and the X-ray tube move to a low position when photographing the legs.
  • the operating range is narrow, it is necessary to raise the subject (patient) to a height at which the subject can be imaged with a step or the like, which may impose a mental burden on the subject.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide an X-ray fluoroscopic imaging apparatus capable of widening the fluoroscopic imaging range in the vertical direction and supporting various fluoroscopic imaging positions.
  • the inventors have obtained the following findings. That is, in the case of the X-ray fluoroscopic imaging apparatus shown in FIG. 17, it is provided on the floor and supports the bed as described in paragraph “0016” of Japanese Patent Laid-Open No. 2016-22248.
  • the couch rotation mechanism (rotating mechanism in Patent Document 2) itself that rotates the couch around the axis of the horizontal axis in the lateral direction of the couch that is orthogonal to the longitudinal direction of the couch can be moved up and down with respect to the main column. Has become.
  • the bed rotating mechanism is provided together with the bed elevating mechanism for moving the bed up and down.
  • the bed is raised together with the bed rotating mechanism to a height such that the end (lower end) of the top plate on the floor side and the floor surface do not interfere with each other when the top plate is tilted. Therefore, by configuring the bed to move up and down together with the bed rotation mechanism, it is possible to prevent interference between the end (lower end) of the table on the floor surface and the floor when the table is tilted by the bed rotation mechanism. can do.
  • Such a bed lifting mechanism is also provided in the X-ray fluoroscopic imaging apparatus in the X-ray fluoroscopic imaging system shown in FIG. Patent Document 3:
  • the holding portion is attached to the main support column, and the holding section can be moved up and down along the main support column. There is.
  • the top plate can also be moved up and down in conjunction with the vertical movement of the holding part.
  • This holding unit is regarded as a part of the bed raising / lowering mechanism that moves up and down the bed together with the bed rotating mechanism.
  • the inventors of the present invention focus on the above-mentioned bed lifting mechanism and move the bed up and down when the subject is in a standing posture (when the table is upright) other than when the table is tilted by the bed rotating mechanism.
  • the present inventors have found that the vertical shooting range is widened by the vertical movement range of the bed due to the lifting and lowering movement of the bed, so that various shooting positions can be handled. It can be applied not only to photographing but also to fluoroscopy.
  • an X-ray fluoroscopic imaging apparatus is an X-ray fluoroscopic imaging apparatus that performs fluoroscopic imaging or imaging with X-rays, and includes an X-ray tube that irradiates X-rays and a top plate on which a subject is placed. And a column supporting the X-ray tube, which is supported by the couch, and the X-ray tube supported by the column in the longitudinal direction by moving the column in the longitudinal direction of the top plate.
  • a support moving mechanism to be moved and a support supported by the support together with the support supported by the bed by rotating the bed around the axis of a horizontal axis in the lateral direction of the top plate orthogonal to the longitudinal direction.
  • a bed rotating mechanism for rotating the X-ray tube about the axis of the horizontal axis, and rotating the X-ray tube about the axis of the horizontal axis with respect to the column, The outside of the standing state provided on the side opposite to the bed side
  • An X-ray tube posture changing mechanism for changing the posture of the X-ray tube so that the X-ray from the X-ray tube can be irradiated toward the X-ray detector; and the top plate in an upright state,
  • the bed is moved up and down, so that the X-ray tube supported by the column moves up and down together with the column supported by the bed.
  • the X-ray tube supported by the column is controlled by controlling the lifting mechanism and moving the column up and down from the current position of the column to the upper end or the lower end of the column when the column is in the upright state. Moves up and down To so that, in which a control means for controlling said post moving mechanism.
  • the support column is supported by the bed (having a top plate on which the subject is placed) and is configured to support the X-ray tube.
  • the column moving mechanism is configured to move the column in the longitudinal direction of the top plate. By moving the support in the longitudinal direction, the X-ray tube supported by the support is moved in the longitudinal direction. As a result, it is possible to secure only the operation range of the X-ray tube in the bed as the fluoroscopic imaging range in the longitudinal direction which is the body axis direction of the subject.
  • the bed rotation mechanism is configured to rotate the bed around the axis of the horizontal axis in the lateral direction of the top plate orthogonal to the longitudinal direction.
  • the tabletop can be erected and erected horizontally.
  • the X-ray tube supported by the pillar is rotated around the axis of the horizontal axis together with the pillar supported by the bed.
  • the longitudinal movement of the support column and the X-ray tube is an up-and-down movement, and the support column moving mechanism moves the support column and the X-ray tube up and down.
  • the support column moving mechanism moves the support column and the X-ray tube up and down.
  • the X-ray fluoroscopic apparatus includes a bed raising / lowering mechanism, controls the bed raising / lowering mechanism so that the bed moves up and down when the tabletop is in an upright state, and supports the upper and lower ends of the tabletop.
  • the bed lifting mechanism is configured to move the bed rotating mechanism up and down when the tabletop is in the upright state.
  • the bed elevating mechanism moves up and down the bed, the column, and the X-ray tube. That is, conventionally, the bed, the support, and the X-ray tube are moved up and down by the bed moving up and down when the table top is tilted by the bed rotating mechanism.
  • the bed when the tabletop is in the upright state, the bed is moved up and down to control the column supported by the bed and the X-ray tube supported by the column to move up and down. Means control the bed lift mechanism.
  • control means is configured to move the column up and down from the current position of the column to the upper end or the lower end of the column so that the X-ray tube supported by the column moves up and down. Controls the column moving mechanism.
  • fluoroscopy is performed using an external X-ray detector (in an upright state provided on the opposite side of the bed side of the X-ray tube), which is not included in the configuration of the X-ray fluoroscopic imaging apparatus according to the present invention.
  • fluoroscopy or imaging is performed using an external X-ray detector without placing the subject on the top plate.
  • the X-ray fluoroscopic imaging apparatus also has a technical feature in that it has an X-ray tube posture changing mechanism.
  • the X-ray tube posture changing mechanism is configured to rotate the X-ray tube around the axis of the horizontal axis with respect to the column. By rotating the X-ray tube about the axis of the horizontal axis with respect to the support, the X-ray can be irradiated from the X-ray tube toward the external X-ray detector in the standing state. Change the posture of the tube.
  • the posture of the X-ray tube is changed so that X-rays are emitted from the X-ray tube toward the external X-ray detector. It is possible to perform fluoroscopy or radiography using an external X-ray detector. As described above, since the X-ray detector is used for fluoroscopy or imaging without placing the subject on the tabletop, even if the bed is moved up and down, the fluoroscopic imaging range in the vertical direction with respect to the subject is expanded. .
  • the up-and-down operation range of the bed itself is added to the operation range of the X-ray tube in the bed as a fluoroscopic imaging range in the up-down direction which is the longitudinal direction of the table.
  • the fluoroscopic imaging range in the vertical direction can be widened by an amount corresponding to the operation range in the vertical direction of the bed due to the up and down movement of the bed, and various fluoroscopic imaging positions can be dealt with.
  • the X-ray irradiation position X-ray tube position
  • the detection position of the external X-ray detector external X-ray detector (Position) just need to be matched.
  • the bed is moved up to a height such that the end (lower end) of the top plate on the floor surface side and the floor surface do not interfere with each other when the top plate is tilted. Therefore, when the top plate is in the upright state, there is a gap between the lower end of the top plate and the floor surface.
  • the external X-ray detector is moved up and down to the position, and the bed is moved up and down to match the position of the X-ray tube with the position of the external X-ray detector.
  • the bed may be moved up and down after the column is moved up and down, and as in the second aspect below, the column may be moved up and down after the bed is moved up and down. .
  • the control means controls the column moving mechanism and the bed elevating mechanism according to the following sequences.
  • a column moving mechanism in which the X-ray tube supported by the column moves up and down by vertically moving the column from the current position of the column to the upper end or the lower end of the table when the table is upright.
  • B Control the bed elevating mechanism so that the bed, the pillar supported by the bed and the X-ray tube supported by the pillar move up and down to the fluoroscopic imaging position when the pillar reaches the upper end or the lower end of the top plate.
  • the column and the X-ray tube are moved up and down from the current position of the column to the upper or lower end of the top plate.
  • the bed, the column, and the X-ray tube are moved up and down to the fluoroscopic imaging position with the column reaching the upper end or the lower end of the top plate.
  • the control means controls the column moving mechanism and the bed elevating mechanism according to the following sequences.
  • C The bed elevating mechanism is controlled so that the bed, the column supported by the bed, and the X-ray tube supported by the column move up and down to a predetermined position when the tabletop is in the upright state.
  • D The X-ray tube supported by the column is moved up and down from the current position of the column to the upper end or the lower end of the top plate in a state where the bed, the column, and the X-ray tube have reached the predetermined positions.
  • the strut moving mechanism is controlled to move up and down.
  • the bed, the column, and the X-ray tube are moved up and down to a predetermined position with the column being fixed to the top, starting from the current position of the column. Thereafter, in (d) above, the support column and the X-ray tube are moved up and down to the upper end or the lower end of the top plate with the bed, the support column, and the X-ray tube reaching the predetermined positions.
  • the X-ray tube may be moved up and down in conjunction with the up and down movement of the external X-ray detector.
  • the external X-ray detector When the external X-ray detector is provided on the standing stand, the external X-ray detector is manually moved.
  • the position detector (for example, an encoder) detects the position of the external X-ray detector after moving up and down, and sends the detected position data to the control means.
  • the control means controls the X-ray tube to move up and down to match the height of the position, whereby the X-ray tube is moved up and down in conjunction with the up and down movement of the external X-ray detector.
  • the X-ray tube is moved up and down with a time lag after detecting the position of the external X-ray detector after the manual movement.
  • the X-ray tube is moved up and down in synchronization with the up-and-down movement of the external X-ray detector so that the external X-ray detector is moved up and down. Then, it is preferable to move the X-ray tube up and down.
  • Patent Document 3 As in Japanese Patent Application Laid-Open No. 2018-29922, it may be inclined at about 90 ° (eg 89 °) with respect to the floor surface.
  • the external X-ray detector includes input means for inputting a command for setting fluoroscopic imaging in the standing state, and after the command is input by the input means, the control means controls the bed rotating mechanism and the X-ray in accordance with the following sequence. It controls the tube posture changing mechanism, the column moving mechanism, and the bed lifting mechanism.
  • the bed rotating mechanism is controlled so that the bed rotates around the axis of the horizontal axis until the top plate is in the upright state.
  • (B) X-ray tube posture so that the X-ray tube rotates about the axis of the horizontal axis with respect to the support until the X-ray from the X-ray tube can be irradiated toward the external X-ray detector. Control the change mechanism.
  • the bed elevating mechanism is controlled so that the bed, the support column and the X-ray tube move up and down until the X-ray tube reaches a preset fluoroscopic imaging position, or
  • the column moving mechanism is controlled so that the column and the X-ray tube move up and down.
  • the above-mentioned input means is provided, and by performing the above (A), (B), and (C), the external X-ray detector can perform fluoroscopic imaging in the upright state by only entering the command once. Can be set to.
  • the table is set in the upright state by rotating the bed around the axis of the horizontal axis until the table is in the upright state.
  • the timing of changing the posture of the X-ray tube in the above (B) may be before the setting of the standing state of the top plate in the above (A) ((B) ⁇ (A) ⁇ (C)) and the above ( The setting may be performed simultaneously with the setting of the standing state of the top plate in (A) ((A) / (B) ⁇ (C)), and after the setting of the standing state of the top plate in (A) above, the ceiling in (C) above is set.
  • the support column is supported by the bed (having a top plate on which the subject is placed) and is configured to support the X-ray tube.
  • the column moving mechanism is configured to move the column in the longitudinal direction of the top plate.
  • the bed rotation mechanism is configured to rotate the bed around the axis of the horizontal axis in the lateral direction of the top plate orthogonal to the longitudinal direction.
  • the bed lifting mechanism is configured to move the bed rotating mechanism up and down when the tabletop is in the upright state.
  • the X-ray tube posture changing mechanism is configured to rotate the X-ray tube around the axis of the horizontal axis with respect to the column.
  • the X-ray tube attitude changing mechanism changes the attitude of the X-ray tube by rotating the X-ray tube around the axis of the horizontal axis with respect to the support column, thereby changing the attitude of the X-ray tube toward the external X-ray detector. It is possible to irradiate X-ray from the X-ray and to perform fluoroscopy or radiography using an external X-ray detector. Since the X-ray detector is used for fluoroscopy or imaging without placing the subject on the top, the fluoroscopic imaging range in the vertical direction with respect to the subject is expanded even when the bed is moved up and down.
  • the up-and-down operation range of the bed itself is added to the operation range of the X-ray tube in the bed as a fluoroscopic imaging range in the up-down direction which is the longitudinal direction of the table.
  • the fluoroscopic imaging range in the vertical direction can be widened by an amount corresponding to the operation range in the vertical direction of the bed due to the up and down movement of the bed, and various fluoroscopic imaging positions can be dealt with.
  • FPD flat panel X-ray detector
  • 6 is a sequence according to the first embodiment when fluoroscopy is performed while the X-ray tube and an external flat panel X-ray detector (FPD) are moved down to a position lower than the lower end of the current top plate.
  • 6 is a sequence according to the first embodiment when fluoroscopy is performed while the X-ray tube and an external flat panel X-ray detector (FPD) are moved down to a position lower than the lower end of the current top plate.
  • 8 is a sequence according to the second embodiment in which fluoroscopy is performed while the X-ray tube and an external flat panel X-ray detector (FPD) are moved down to a position lower than the lower end of the current top plate. 8 is a sequence according to the second embodiment in which fluoroscopy is performed while the X-ray tube and an external flat panel X-ray detector (FPD) are moved down to a position lower than the lower end of the current top plate.
  • It is a schematic diagram of the conventional standing stand. It is a schematic diagram of the conventional X-ray fluoroscopic imaging apparatus. It is a schematic diagram of an X-ray fluoroscopic imaging system using a conventional X-ray fluoroscopic imaging apparatus and a standing stand.
  • FIG. 1 is a schematic perspective view of an X-ray fluoroscopic imaging apparatus according to each embodiment
  • FIG. 2 is a schematic front view of an X-ray fluoroscopic imaging apparatus according to each embodiment
  • FIG. FIG. 4 is a schematic side view and a block diagram of such an X-ray fluoroscopic imaging apparatus
  • FIG. 4 is a schematic view of a bed elevating mechanism of the X-ray fluoroscopic imaging apparatus according to each embodiment
  • FIG. 5 is an X related to each embodiment.
  • It is a schematic diagram of an X-ray fluoroscopic imaging system using a fluoroscopic imaging apparatus and a standing stand.
  • a flat panel X-ray detector (FPD) is used as an X-ray detector (including an external X-ray detector provided on a standing stand which is an external device).
  • Flat Panel Detector is taken as an example to explain.
  • the support for the X-ray tube that supports the X-ray tube also supports the flat panel X-ray detector (hereinafter abbreviated as "FPD"), and the bed.
  • the X-ray tube and the flat panel type X-ray detector (FPD) are arranged so as to be opposed to each other and are sandwiched between them.
  • FIG. 3 illustration of the bed holding portion and the like is omitted.
  • FIGS. 1 to 5 have the same configuration as each embodiment.
  • the X-ray fluoroscopic imaging apparatus includes an X-ray tube 1, a bed 2, a flat panel X-ray detector (FPD) 3, a fluoroscopic table support column 4, a main support column 5, and a collimator 6. Is equipped with.
  • the X-ray fluoroscopic imaging apparatus includes a column moving mechanism 10, a bed rotating mechanism 20, an X-ray tube posture changing mechanism 30, a bed elevating mechanism 40, and a controller 50.
  • the perspective table column 4 corresponds to the column in the present invention, and the controller 50 corresponds to the control means in the present invention.
  • the X-ray tube 1 emits X-rays.
  • the collimator 6 is provided on the irradiation side of the X-ray tube 1.
  • the collimator 6 has four collimator leaves 6a (only two are shown in FIGS. 2 and 3). By moving the collimator leaf 6a in the direction of the arrow in FIGS. 2 and 3, the size of the opening surrounded by the four collimator leaves 6a is adjusted.
  • the collimator 6 adjusts the size of the irradiation field (irradiation range) of the X-rays emitted from the X-ray tube 1 by adjusting the size of the opening.
  • the bed 2 is composed of a top plate 2a and a bed main body 2b.
  • the bed 2 is configured so that the subject M (see FIGS. 2 and 3) is placed on the top plate 2a.
  • the top plate 2a is provided on the bed main body 2b.
  • the FPD 3 is loaded between the top plate 2a and the bed main body 2b, and the FPD 3 is movable in the longitudinal direction of the top plate 2a which is also the body axis Z direction of the subject M (see FIG. 3).
  • the FPD 3 is composed of detection elements arranged two-dimensionally in the vertical and horizontal directions.
  • the FPD 3 detects X-rays emitted from the X-ray tube 1.
  • the fluoroscopic table support 4 is supported by the bed main body 2b of the bed 2, and supports the X-ray tube 1 and the FPD 3 so as to face each other with the top plate 2a of the bed 2 and the bed main body 2b sandwiched therebetween. Is configured.
  • the main support column 5 is provided on the floor. The main support column 5 is configured to support the bed 2.
  • the column moving mechanism 10 is configured to move the perspective table column 4 in the longitudinal direction.
  • the X-ray tube 1 and the FPD 3 supported by the perspective table column 4 are moved in the longitudinal direction by the X-ray tube 1 and the FPD 3 supported by the perspective table column 4 being moved in the longitudinal direction.
  • the column moving mechanism 10 includes a screw rod (not shown) extending in the longitudinal direction for moving the perspective table column 4 in the longitudinal direction, and a slide rail extending in the longitudinal direction parallel to the screw rod (not shown). ) And a motor (not shown) for rotating the screw rod.
  • the perspective table support column 4 is screwed to a threaded rod, and is configured so that the perspective table support column 4 slides with respect to the slide rail.
  • the motor rotates the screw rod
  • the perspective table support column 4 slides with respect to the slide rail by screw feeding by the rotation of the screw rod, and the perspective table support column 4 moves in the longitudinal direction.
  • the fluoroscopic table support column 4 is moved in the longitudinal direction
  • the X-ray tube 1 and the FPD 3 supported by the fluoroscopic table support column 4 can be moved in the longitudinal direction.
  • the bed rotating mechanism 20 is configured to rotate the bed 2 around the axis of the horizontal axis Y in the lateral direction of the top plate 2a orthogonal to the longitudinal direction.
  • the top plate 2a can be erected in an upright / horizontal state.
  • the fluoroscopic table support 4 supported by the bed main body 2b of the bed 2 and the X-ray tube 1 supported by the fluoroscopic table support 4 are provided.
  • the FPD 3 is rotated about the axis of the horizontal axis Y.
  • the couch rotation mechanism 20 rotates the couch 2 around the axis of the horizontal axis Y and the couch holder 21 (see FIGS. 1 and 2) that holds the couch 2 so that the couch 2 can be tilted.
  • the fan-shaped rack 22 (see FIGS. 2 and 3), the support 23 (see FIG. 2) inserted into the bed holder 21 and the fan-shaped rack 22, and the pinion 24 (FIG. 2) fitted into the fan-shaped rack 22. 2 and FIG. 3), a rotary shaft 25 (see FIGS. 2 and 3) having a pinion 24 at one end, and a motor 26 (see FIG. 2) for rotating the rotary shaft 25.
  • a rotary shaft 25 see FIGS. 2 and 3 having a pinion 24 at one end
  • a motor 26 (see FIG. 2) for rotating the rotary shaft 25.
  • the motor 26 rotates the rotary shaft 25
  • the pinion 24 disposed at one end of the rotary shaft 25 rotates, and in conjunction with the rotation of the pinion 24, the fan-shaped rack 22 fitted to the pinion 24 rotates the support shaft 23. It rotates around the support shaft 23 as a fulcrum.
  • the bed 2 including the top plate 2a and the bed main body 2b is rotated around the axis of the horizontal axis Y.
  • the bed raising / lowering mechanism 40 moves the bed 2 up to a height such that the end (lower end) of the tabletop 2a on the floor surface and the floor surface do not interfere with each other, the tabletop 2a can be moved. The standing state of can be realized.
  • the X-ray tube attitude changing mechanism 30 is configured to rotate the X-ray tube 1 around the axis of the horizontal axis Y with respect to the perspective table support column 4.
  • the X-ray tube 1 rotates about the axis of the horizontal axis Y with respect to the support table 4 for the perspective table, the X-ray tube 1 is directed toward the external FPD (D) (see FIG. 5) in the standing state provided on the standing stand.
  • the posture of the X-ray tube 1 is changed so that the X-ray from the X-ray tube 1 can be irradiated.
  • the X-ray tube posture changing mechanism 30 is configured to include a rotating shaft (not shown) inserted into the fluoroscopic table support 4 and a motor (not shown) for rotating the rotating shaft.
  • the motor rotates the rotation shaft
  • the collimator 6 is rotated around the axis of the horizontal axis Y together with the X-ray tube 1 with respect to the perspective table support 4.
  • the irradiation direction of X-rays from the X-ray tube 1 via the collimator 6 is changed. It becomes possible to do.
  • the bed raising / lowering mechanism 40 is configured to move the bed holding portion 21 of the bed rotating mechanism 20 up and down with respect to the main column 5.
  • the bed 2 is moved up and down together with the bed holding part 21, and together with the perspective table column 4 supported by the bed main body part 2b of the bed 2, for the perspective table.
  • the X-ray tube 1 and the FPD 3 supported by the column 4 are moved up and down.
  • the bed raising / lowering mechanism 40 moves the bed 2, the fluoroscopic table support 4, the X-ray tube 1 and the FPD 3 up and down.
  • the bed raising / lowering mechanism 40 moves the bed holder 21 of the bed rotating mechanism 20 up and down when the tabletop 2a is in a horizontal state, and particularly, the bed holder 21 of the bed rotating mechanism 20 even when the tabletop 2a is upright. It is possible to move up and down.
  • the bed elevating mechanism 40 includes a linear rack 41 (see FIG. 4) extending vertically for vertically moving the bed 2 and the bed holder 21, and a pinion 42 (see FIG. 4) fitted to the linear rack 41. 4), a rotary shaft 43 (see FIG. 4) having a pinion 42 at one end, and a motor 44 (see FIG. 4) for rotating the rotary shaft 43.
  • the linear rack 41 is attached to the bed holding unit 21.
  • the rotary shaft 43 is inserted into the main support column 5.
  • the motor 44 rotates the rotary shaft 43
  • the pinion 42 arranged at one end of the rotary shaft 43 rotates, and the rotational movement of the pinion 42 is converted into the linear movement of the linear rack 41 fitted therein.
  • the linear rack 41 moves straight in a state where the main column 5 into which the rotary shaft 43 is inserted is fixed, so that the bed holder 21 to which the linear rack 41 is attached is moved up and down. In this way, when the bed holding unit 21 is moved up and down with the main column 5 fixed, the bed 2 moves up and down together with the bed holding unit 21 with respect to the main column 5, and is supported by the bed main body 2b of the bed 2.
  • the X-ray tube 1 and the FPD 3 supported by the fluoroscopic table support column 4 can be moved up and down together with the fluoroscopic table support column 4.
  • the X-ray fluoroscopic imaging apparatus further includes an input unit 60 for inputting a command, as shown in FIG.
  • the X-ray fluoroscopic imaging apparatus performs various processes on the X-ray detection signal based on the X-ray detected by the FPD 3 and outputs an X-ray image, and an X-ray image and an X-ray image.
  • a monitor (not shown) for displaying is provided, the description thereof is omitted because it is not a characteristic part or a structure related to the characteristic part.
  • the input unit 60 corresponds to the input means in the present invention.
  • the controller 50 integrally controls each component of the X-ray fluoroscopic imaging apparatus.
  • the controller 50 moves up and down the bed 2 when the tabletop 2a is in the upright state (the subject M is in the standing posture), and together with the fluoroscopic table support column 4 supported by the bed 2, the controller 50
  • the bed elevating mechanism 40 is controlled so that the X-ray tube 1 and the FPD 3 supported by the column 4 move up and down.
  • the controller 50 controls the column moving mechanism 10 and the bed lifting mechanism 40 according to the sequences shown in FIGS.
  • the controller 50 is composed of a central processing unit (CPU) and the like.
  • the input unit 60 is configured to input a command for setting fluoroscopic imaging when the external FPD (D) is in the standing state. Particularly, after the command is input by the input unit 60, the controller 50 causes the bed rotating mechanism 20, the X-ray tube posture changing mechanism 30, and the column moving mechanism so that the X-ray tube 1 reaches the preset fluoroscopic imaging position. 10 and the bed lifting mechanism 40 are controlled respectively.
  • the input unit 60 is configured by a pointing device represented by a mouse, a keyboard, a joystick, a trackball, a touch panel, or the like, or a button provided near the bed 2.
  • the standing stand which is an external device of the X-ray fluoroscopic imaging apparatus, is a tray (shown in FIG. 5) on which the stand columns S and the FPD (D) are mounted ( (Not shown).
  • the stand column S is configured to support a subject (not shown in FIG. 5) in a standing posture.
  • the FPD (D) is configured to move up and down with respect to the stand column S in the body axis Z direction (see FIG. 3) of the subject.
  • An X-ray fluoroscopic imaging system is configured by combining the X-ray fluoroscopic imaging apparatus shown in FIGS. 1 to 5 and the standing stand shown in FIG.
  • FIGS. 6 to 13 are sequences when performing fluoroscopy only at the fluoroscopy position (height of fluoroscopy), and FIGS. 10 to 11 are lower than the current lower end of the top plate according to each embodiment.
  • FIG. 12 to FIG. 13 are the sequences in the case of performing fluoroscopic imaging while the X-ray tube and the external flat panel X-ray detector (FPD) are moving down to the position
  • FIGS. 2 is a sequence in the case where fluoroscopy is performed while the X-ray tube and the external flat panel X-ray detector (FPD) are moved down to a position lower than the lower end of the. 6 to 9, the chest position of the subject M will be described as an example of the fluoroscopic imaging position.
  • the subject M in the standing posture is set so as to be supported by the stand column S.
  • the bed 2 is raised to such a height that the end (lower end) of the top plate 2a on the floor surface side does not interfere with the floor surface.
  • the bed 2 is moved up to a height with a margin as shown in FIG. Therefore, as shown in FIG. 7 (A), when the bed 2 is rotated around the axis of the horizontal axis Y until the top 2a is in the upright state, the lower end of the top 2a and the floor when the top 2a is in the upright state. A gap is created between the surface.
  • the fluoroscopic imaging position is the chest position of the subject M. Therefore, as shown in FIG. 8C, when the tabletop 2a is in the standing state, the bed 2 is fixed and the chest is fixed. There is no problem even if the fluoroscopic stand 4 and the X-ray tube 1 move downward until the X-ray tube 1 reaches the position. Of course, as shown in FIG. 9 (C), the bed 2, the fluoroscopic table support 4 and the X-ray tube 1 may be moved down when the tabletop 2a is in the upright state. In FIG.
  • the X-ray tube 1 is positioned above the chest even if the end (lower end) of the top plate 2a on the floor surface comes into contact with the floor surface as a result of the lowering movement of the bed 2. Therefore, after that, as in the case of FIG. 8C, with the bed 2 fixed, the fluoroscopic stand 4 and the X-ray tube 1 are moved downward until the X-ray tube 1 reaches the chest position. Set.
  • the axis of the horizontal axis Y with respect to the support base 4 for the perspective table is rotated until the X-ray from the X-ray tube 1 can be irradiated toward the FPD (D).
  • the X-ray tube 1 is set to rotate. In this way, the X-ray tube 1 is rotated about the axis of the horizontal axis Y with respect to the support 4 for the perspective table, so that the X-ray tube 1 can be irradiated toward the FPD (D).
  • the posture of the X-ray tube 1 is changed so that Regarding the timing of changing the posture of the X-ray tube 1 in FIG. 7B, it may be before the standing state of the top plate 2a in FIG.
  • the setting may be performed simultaneously with the setting of the standing state, or after the setting of the standing state of the top plate 2a in FIG. 7A, the top plate 2a in FIG. 8C or FIG. It may be before the descending movement of the X-ray tube 1 or after the descending movement of the X-ray tube 1 in the standing state of the top plate 2a in FIG. 8C or FIG. 9C.
  • the sequences shown in FIGS. 6 to 9 are executed to perform fluoroscopic imaging in the standing state of the FPD (D). To do. It should be noted that the sequence shown in FIGS. 7 to 9 may be executed when the command is input once to the input unit 60 after the bed 2 has been moved upward in order to prevent interference in FIG.
  • the X-ray tube 1 and the FPD (D) are moved down to a position lower than the lower end of the current top plate 2a (for example, the top plate 2a in FIG. 7), and fluoroscopic imaging of the subject M in the standing posture is performed.
  • the case of performing will be described.
  • move the FPD (D) in the case of performing long imaging of the subject M in the standing posture using the X-ray tube 1 and the FPD (D) to a position lower than the lower end of the current top plate 2a, move the FPD (D). Since the sequence is the same except that is automatic, its description is omitted.
  • the FPD (D) is manually moved so that the FPD (D) reaches the facing position.
  • the subject M in the standing posture is set so as to be supported by the stand column S.
  • the bed 2 is raised to such a height that the end (lower end) of the top plate 2a on the floor surface side does not interfere with the floor surface. To move.
  • FIG. 10 As shown in FIG. 10, as will be described later, the X-ray tube 1 supported by the perspective table column 4 with the fluoroscopic column column 4 reaching the upper end of the table 2a when the table column 2a is in the upright state.
  • the FPD (D) is manually moved so that the FPD (D) reaches the facing position.
  • the subject M in the standing posture is set so as to be supported by the stand column S.
  • the bed 2 is raised to such a height that the end (
  • the posture of the X-ray tube 1 is changed so that the X-rays from the X-ray tube 1 can be emitted toward the FPD (D) as shown in FIG.
  • the X-ray tube 1 and the FPD (D) supported by the fluoroscopic stand 4 are opposed to each other with the fluoroscopic stand 4 reaching the upper end of the top plate 2a as shown in FIG. Align the position of and the position of FPD (D).
  • X-rays are emitted from the X-ray tube 1 to perform fluoroscopic imaging.
  • the FPD (D) is manually moved so that the FPD (D) reaches below.
  • setting is made so that the fluoroscopic column support 4 and the X-ray tube 1 are moved downward in conjunction with the downward movement of the FPD (D).
  • X-rays are emitted from the X-ray tube 1 to perform fluoroscopic imaging.
  • the descending movement and the fluoroscopic imaging are repeated until the fluoroscopic table support column 4 and the X-ray tube 1 descends to the lower end of the top plate 2a.
  • the fluoroscopy table support column 4 and the X-ray tube 1 are moved downward from the upper end to the lower end of the top plate 2a in conjunction with the downward movement of the FPD (D).
  • the couch 2 for the fluoroscopic table is brought to the fluoroscopic imaging position.
  • the column 4 and the X-ray tube 1 are set so as to move downward.
  • the perspective photographing position is a position where the lower end of the top plate 2a does not interfere with the floor surface. X-rays are emitted from the X-ray tube 1 at the fluoroscopic imaging position to perform fluoroscopic imaging.
  • the fluoroscopic table support 4 is supported by the bed main body portion 2b of the bed 2 (having the top plate 2a on which the subject M is placed), and the bed 2
  • the X-ray tube 1 and the FPD 3 are arranged so as to face each other and are supported with the top plate 2a and the bed main body 2b sandwiched therebetween.
  • the column moving mechanism 10 is configured to move the perspective table column 4 in the longitudinal direction of the top plate 2a.
  • the X-ray tube 1 and the FPD 3 supported by the perspective table column 4 are moved in the longitudinal direction by the X-ray tube 1 and the FPD 3 supported by the perspective table column 4 being moved in the longitudinal direction.
  • the bed rotating mechanism 20 is configured to rotate the bed 2 around the axis of the horizontal axis Y in the lateral direction of the table 2a orthogonal to the longitudinal direction.
  • the top plate 2a can be erected in an upright / horizontal state.
  • the fluoroscopic table support 4 supported by the bed main body 2b of the bed 2 and the X-ray tube 1 supported by the fluoroscopic table support 4 are provided.
  • the FPD 3 is rotated about the axis of the horizontal axis Y.
  • the longitudinal movement of the fluoroscopic pedestal support 4, the X-ray tube 1 and the FPD 3 is an up-and-down movement, and the stanchion moving mechanism 10 is used for the fluoroscopic pedestal.
  • the support 4, the X-ray tube 1 and the FPD 3 are moved up and down.
  • the X-ray fluoroscopic imaging apparatus includes the bed elevating mechanism 40, and the bed elevating mechanism so that the bed 2 moves up and down when the tabletop 2a is in the upright state.
  • the couch lifting mechanism 40 is configured to move the couch holding unit 21 of the couch rotation mechanism 20 up and down with respect to the main support column 5 when the top 2a is in the upright state.
  • the bed 2 By moving the bed holding part 21 up and down with respect to the main column 5, the bed 2 is moved up and down together with the bed holding part 21, and together with the perspective table column 4 supported by the bed main body part 2b of the bed 2, for the perspective table.
  • the X-ray tube 1 and the FPD 3 supported by the column 4 are moved up and down.
  • the bed raising / lowering mechanism 40 moves the bed 2, the fluoroscopic table support 4, the X-ray tube 1 and the FPD 3 up and down.
  • the bed, the fluoroscopic table support, and the X-ray tube are moved up and down by the bed moving up and down when the table top is tilted by the bed rotating mechanism.
  • Example 1 including Example 2 which will be described later
  • the bed 2 is moved up and down to be supported by the bed body 2b of the bed 2.
  • the controller 50 controls the bed raising / lowering mechanism 40 so that the X-ray tube 1 and the FPD 3 supported by the fluoroscopic table support column 4 ascend and descend together with the fluoroscopic table support column 4.
  • the tabletop support column 4 is moved up and down from the current position of the tabletop support column 4 to the upper end or the lower end of the tabletop 2a, so that the tabletop support column 4 is supported.
  • the controller 50 controls the column moving mechanism 10 so that the X-ray tube 1 moves up and down.
  • the bed 2 is moved up and down to be placed on the table 2a.
  • the FPD 3 only moves up and down together with the subject M that has been taken, and the fluoroscopic imaging range in the vertical direction does not change.
  • the X-ray fluoroscopic imaging apparatus according to the first embodiment does not include (an upright position provided on the side opposite to the bed side of the X-ray tube 1).
  • an external FPD (D) in a state). That is, without placing the subject M on the top plate 2a, fluoroscopy or imaging is performed using the external FPD (D).
  • the X-ray fluoroscopic imaging apparatus also has a technical feature in that the X-ray tube posture changing mechanism 30 is provided.
  • the X-ray tube posture changing mechanism 30 is configured to rotate the X-ray tube 1 around the axis of the horizontal axis Y with respect to the fluoroscopic table support column 4.
  • the X-ray tube 1 rotates about the axis of the horizontal axis Y with respect to the fluoroscopy support column 4
  • the X-ray tube 1 moves from the X-ray tube 1 toward the external FPD (D) in the standing state provided on the standing stand.
  • the posture of the X-ray tube 1 is changed so that the X-ray irradiation can be performed.
  • the posture of the X-ray tube 1 is changed by rotating the X-ray tube 1 around the axis of the horizontal axis Y with respect to the support table 4 for the fluoroscopy table, so that the X-rays are directed toward the external FPD (D).
  • X-rays can be emitted from the tube 1 and used for fluoroscopy or radiography using an external FPD (D).
  • the subject M is not placed on the top plate 2a and fluoroscopy or imaging is performed using an external FPD (D)
  • the fluoroscopy in the vertical direction with respect to the subject M is performed.
  • the shooting range is expanded.
  • the vertical movement range of the X-ray tube 1 of the bed 2 is added to the vertical movement range of the X-ray tube 1 as the vertical imaging range of the top 2a.
  • the fluoroscopic imaging range in the vertical direction can be widened by the operation range in the vertical direction of the bed 2 due to the vertical movement of the bed 2, and various fluoroscopic imaging positions can be dealt with.
  • the X-ray irradiation position position of the X-ray tube 1
  • the external FPD (D) can be adjusted. All that is required is to match the detection position (position of FPD (D)).
  • the bed 2 is moved up to such a height that the end (lower end) of the top plate 2a on the floor side and the floor surface do not interfere with each other when the top plate 2a is tilted. Therefore, when the top plate 2a is in the upright state, a gap is created between the lower end of the top plate 2a and the floor surface.
  • the external FPD (D) is moved down to the position, and the bed 2 is moved down to move X.
  • the position of the wire tube 1 is aligned with the position of the external FPD (D).
  • the bed 2 may be moved up and down after the see-through support column 4 is moved up and down, and FIGS. 10 to 11 and 14 of the second embodiment described later.
  • the see-through column support 4 may be moved up and down after the bed 2 is moved up and down.
  • the X-ray tube 1 and the FPD (D) are moved downward to a position lower than the lower end of the current top plate 2a, and the subject in the standing posture is moved.
  • the sequence when performing fluoroscopic imaging of the specimen M is as follows.
  • the controller 50 controls the column moving mechanism 10 and the bed elevating mechanism 40 according to the following sequences.
  • (A) When the top plate 2a is in the upright state, from the current position of the perspective table column 4 (the upper end of the top plate 2a in the first embodiment) to the upper end or the lower end of the top plate 2a (the top plate 2a in the first embodiment).
  • the up-and-down movement of the fluoroscopic table support column 4 (downward movement in the first embodiment) to the X-ray tube 1 supported by the fluoroscopic table support column 4 (downward movement in the first embodiment).
  • the strut moving mechanism 10 is controlled so as to).
  • (B) The perspective table supported by the couch 2 and the couch 2 to the fluoroscopic imaging position in a state in which the fluoroscopy table support column 4 reaches the upper end or the lower end (the lower end of the table 2a in the first embodiment) of the table 2a.
  • the bed elevating mechanism 40 is controlled such that the X-ray tube 1 supported by the supporting column 4 and the fluoroscopic table column 4 moves up and down (downward in the first embodiment) to the fluoroscopic imaging position.
  • the support 4 for the fluoroscopy base and the X-ray tube 1 are moved upward.
  • the plate 2a is moved up and down to the upper end or the lower end (the lower end of the top plate 2a in the first embodiment) (lowered in the first embodiment).
  • the bed 2 the fluoroscopic support 4 and the X-rays.
  • the tube 1 moves up and down to the fluoroscopic imaging position (downward movement in the first embodiment).
  • the X-ray tube 1 is moved up and down (downward movement in each embodiment) in conjunction with the up-down movement (downward movement in each embodiment) of the external FPD (D). ).
  • the external FPD (D) is provided on the standing stand, the external FPD (D) is manually moved as described in the section “Means for solving the problem”.
  • the position detector detects the position of the external FPD (D) after the ascending / descending movement (the descending movement in each embodiment), and the detected position
  • the external FPD (D) By sending the data to the controller 50 and controlling the controller 50 so that the X-ray tube 1 moves up and down (downward in each embodiment) so as to match the height of the position, the external FPD (D)
  • the X-ray tube 1 is moved up and down (down in each example) in conjunction with the up and down movement (down in each example).
  • the X-ray tube 1 is moved up and down with a time lag (in each embodiment, in the examples). Move downward).
  • the X-ray tube 1 is moved up and down in synchronization with the up and down movement of the external FPD (D), so that the external FPD (D) is moved up and down. It is preferable to move the X-ray tube 1 up and down in conjunction with each other.
  • the top plate 2a when the top plate 2a is not in the upright state (including the top plate 2a in an oblique state), when an external FPD (D) attempts to perform fluoroscopic imaging in the upright state, various commands are input and the X-ray fluoroscopic imaging apparatus is input. Need to operate. Therefore, by inputting the command once, the top plate 2a is tilted, the posture of the X-ray tube 1 is changed, and the X-ray tube 1 is moved up and down while the top plate 2a is in the upright state, and the external FPD (D It is preferable to control as follows so that (1) performs fluoroscopic imaging in the standing state.
  • the external FPD (D) includes the input unit 60 for inputting a command for setting the fluoroscopic imaging in the standing state, and after the input of the command by the input unit 60, the controller 50 follows the following sequence to rotate the bed rotating mechanism 20. , The X-ray tube posture changing mechanism 30, the column moving mechanism 10 and the bed lifting mechanism 40, respectively. (A) The bed rotating mechanism 20 is controlled so that the bed 2 rotates about the axis of the horizontal axis Y until the top plate 2a is in the upright state.
  • the X-ray tube 1 is rotated about the axis of the horizontal axis Y with respect to the fluoroscopy support column 4 until the X-ray from the X-ray tube 1 can be irradiated toward the external FPD (D).
  • the X-ray tube posture changing mechanism 30 is controlled so as to do so.
  • C When the tabletop 2a is in the upright state, the bed 2, the fluoroscopic table support 4 and the X-ray tube 1 are moved up and down until the X-ray tube 1 reaches the preset fluoroscopic imaging position.
  • the bed lifting mechanism 40 is controlled (see FIG. 9).
  • the column moving mechanism 10 is controlled so that the fluoroscopic column column 4 and the X-ray tube 1 move up and down (see FIG. 8).
  • the fluoroscopic imaging in the standing state of the external FPD (D) is performed by only entering the command once.
  • the table 2a is set in the upright state by rotating the bed 2 around the axis of the horizontal axis Y until the table 2a is in the upright state.
  • the X-ray tube is provided around the axis of the horizontal axis Y with respect to the support base 4 for the perspective table until the X-ray from the X-ray tube 1 can be irradiated toward the external FPD (D).
  • the posture of the X-ray tube 1 is changed such that the X-ray tube 1 can be irradiated with the X-ray toward the external FPD (D) in the upright state.
  • the bed 2 when the tabletop 2a is in the upright state, the bed 2, the fluoroscopic stand 4 and the X-ray tube 1 move up and down until the X-ray tube 1 reaches the preset fluoroscopic imaging position.
  • the bed raising / lowering mechanism 40 is controlled so as to do so (see FIG. 9).
  • the column moving mechanism 10 is controlled so that the fluoroscopy column 4 and the X-ray tube 1 move up and down.
  • the timing is 2a, and after the standing state of the top plate 2a in (A) above is set, the X-ray tube 1 is moved up and down in the standing state of the top plate 2a in (C) above.
  • the timing of changing the posture of the X-ray tube 1 in the above (B) may be before the setting of the standing state of the top plate 2a in the above (A) ((B)).
  • the standing state of the top plate 2a in (A) above may be set at the same time ((A) / (B) ⁇ (C)), and the top plate in (A) above.
  • the X-ray tube 1 in the above (C) may be moved up and down while the standing plate 2a is in the standing state ((A) ⁇ (B) ⁇ (C)).
  • the X-ray tube 1 may be moved up and down while the top plate 2a in () is upright ((A) ⁇ (C) ⁇ (B)).
  • the posture of the X-ray tube 1 in (B) above is changed before setting the standing state of the top plate 2a in (A) above, the X-ray tube 1 should be directed toward the side opposite to the bed side.
  • the X-rays from the X-ray tube 1 can be irradiated, by setting the standing state of the top plate 2a in (A) above, the X-ray tube 1 from the X-ray tube 1 is finally directed toward the external FPD (D). The X-ray can be irradiated.
  • FIG. 14 to 15 show a case where fluoroscopy is performed while the X-ray tube and the external flat panel X-ray detector (FPD) are moved down to a position lower than the lower end of the current top plate according to the second embodiment.
  • FPD flat panel X-ray detector
  • the FPD (D) is manually moved so that the FPD (D) reaches the lower side (predetermined position) as shown in (c) of FIG. Then, interlocking with the downward movement of the FPD (D), the bed 2, the fluoroscopic table support 4 and the X-ray tube 1 are set to be moved down to the predetermined position.
  • the predetermined position is a position where the lower end of the top plate 2a does not interfere with the floor surface in the second embodiment.
  • An X-ray is emitted from the X-ray tube 1 at the predetermined position to perform fluoroscopic imaging.
  • the fluoroscopic column support 4 and the X-ray tube 1 With the bed 2, the fluoroscopic column support 4 and the X-ray tube 1 reaching the predetermined positions, the FPD (D) is moved downward so that the FPD (D) reaches the lower position as shown in FIG. 15 (d). Move it manually. Then, setting is made so that the fluoroscopic column support 4 and the X-ray tube 1 are moved downward in conjunction with the downward movement of the FPD (D). In the state where the position of the X-ray tube 1 and the position of the FPD (D) are aligned, X-rays are emitted from the X-ray tube 1 to perform fluoroscopic imaging.
  • the descending movement and the fluoroscopic imaging are repeated until the fluoroscopic table support column 4 and the X-ray tube 1 descends to the lower end of the top plate 2a.
  • the fluoroscopy table support column 4 and the X-ray tube 1 are moved downward from the upper end to the lower end of the top plate 2a in conjunction with the downward movement of the FPD (D).
  • the fluoroscopic table support column 4 includes the bed of the bed 2 (which includes the top plate 2a on which the subject M is placed).
  • the X-ray tube 1 and the FPD 3 are supported by the body 2b.
  • the column moving mechanism 10 is configured to move the perspective table column 4 in the longitudinal direction of the top plate 2a.
  • the bed rotation mechanism 20 is configured to rotate the bed 2 around the axis of the horizontal axis Y in the lateral direction of the top plate 2a orthogonal to the longitudinal direction.
  • the bed lifting mechanism 40 is configured to move the bed rotating mechanism 20 up and down when the tabletop 2a is in the upright state.
  • the X-ray tube posture changing mechanism 30 is configured to rotate the X-ray tube 1 around the axis of the horizontal axis Y with respect to the fluoroscopic table support column 4.
  • the X-ray tube attitude changing mechanism 30 changes the attitude of the X-ray tube 1 by rotating the X-ray tube 1 around the axis of the horizontal axis Y with respect to the support table 4 for the fluoroscopy table, so that the external FPD ( It is possible to perform X-ray irradiation from the X-ray tube 1 toward D) and perform fluoroscopy or imaging using an external FPD (D).
  • the fluoroscopic imaging range in the vertical direction with respect to the object M is expanded.
  • the vertical movement range of the X-ray tube 1 of the bed 2 is added to the vertical movement range of the X-ray tube 1 as the vertical imaging range of the top 2a.
  • the fluoroscopic imaging range in the vertical direction can be widened by the operation range in the vertical direction of the bed 2 due to the vertical movement of the bed 2, and various fluoroscopic imaging positions can be dealt with.
  • the up-and-down movement of the see-through support column 4 is performed after the up-and-down movement of the bed 2.
  • the X-ray tube 1 and the FPD (D) are moved down to a position lower than the current lower end of the top plate 2a.
  • the sequence in the case of performing fluoroscopic imaging of the subject M in the standing posture is as follows.
  • the controller 50 controls the column moving mechanism 10 and the bed elevating mechanism 40 according to the following sequence.
  • C When the tabletop 2a is in the upright state, the couch 2 and the fluoroscopy table support 4 supported by the couch 2 and the X-ray tube 1 supported by the fluoroscopy table support 4 move up and down to a predetermined position (book In the second embodiment, the bed elevating mechanism 40 is controlled so as to move downward.
  • D With the couch 2, the fluoroscopic table support 4 and the X-ray tube 1 reaching the predetermined positions, from the current position of the fluoroscopic table support 4 (the upper end of the top panel 2a in the second embodiment) to the top panel 2a.
  • the X-rays supported by the perspective table column 4 are moved up and down (downward in Example 2) to the upper end or the lower end (lower edge of the top plate 2a in the first embodiment) of the table.
  • the column moving mechanism 10 is controlled so that the pipe 1 moves up and down (downward moving in the second embodiment).
  • the perspective table support column 4 is fixed to the top panel 2a starting from the current position of the perspective table support column 4 (the upper end of the top panel 2a in the second embodiment).
  • the bed 2, the fluoroscopic table support 4 and the X-ray tube 1 are moved up and down to a predetermined position (downward movement in the second embodiment).
  • the fluoroscopic table support 4 and the X-ray tube 1 are moved to the upper end or the lower end of the top plate 2a ( In the second embodiment, it moves up and down to the lower end of the top plate 2a (downward movement in the second embodiment).
  • the present invention is not limited to the above embodiment, but can be modified and implemented as follows.
  • the flat panel type X-ray detector has been described as an example of the X-ray detector, but it is normally used like an image intensifier (II). There is no particular limitation as long as it is an X-ray detector that can be used.
  • the support for the fluoroscopic table that supports the X-ray tube also supports an X-ray detector such as a flat panel X-ray detector (FPD), and the bed is sandwiched between them.
  • FPD flat panel X-ray detector
  • the X-ray tube and the X-ray detector are arranged opposite to each other and supported, but it is not always necessary to support the X-ray detector.
  • An X-ray tube support supporting the X-ray tube and a detector support supporting the X-ray detector are individually provided, and X-ray detection is performed together with the detector support in synchronization with the movement of the X-ray tube support in the longitudinal direction of the X-ray tube.
  • the vessel may be moved longitudinally.
  • Patent Document 3 As described in the section of "Means for Solving Problems", "the subject is in a standing posture” and “the top is in an upright state” in the present specification means exactly with respect to the floor surface. It need not be upright at 90 °.
  • Patent Document 3 As in Japanese Patent Application Laid-Open No. 2018-29922, it may be inclined at about 90 ° (eg 89 °) with respect to the floor surface.
  • the standing stand (the subject is standing) is realized by combining the standing stands as shown in FIG. 5, but it is not limited to the standing stand.
  • the bed, the column (supporting the X-ray tube) (the column for the fluoroscopic table in each example) and the X-ray tube are interlocked with the downward movement of the external X-ray detector.
  • the fluoroscopy is performed at a position lower than the lower end of the current top plate (for example, the leg portion) by controlling the descending movement, it is not limited to the descending movement of the bed, the column, and the X-ray tube.
  • the height of the external X-ray detector is increased.
  • the bed, column and X-ray tube are controlled so as to move up accordingly.
  • the X-ray tube is moved up and down (downward in each example) in conjunction with the up-and-down movement (downward in each example) of the external X-ray detector.
  • the X-ray irradiation position position of the X-ray tube
  • the detection position of the external X-ray detector position of the external X-ray detector
  • the X-ray tube may be moved up and down according to the detection position of the external X-ray detector that has already been set (the position of the external X-ray detector).
  • the current position of the support for the X-ray tube that supports the X-ray tube is the upper end of the top plate, but it need not necessarily be the upper end of the top plate.
  • the present invention is suitable for an X-ray fluoroscopic imaging apparatus that acquires an X-ray image used for diagnosis.

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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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Abstract

La présente invention concerne un dispositif de fluoroscopie à rayons X dans lequel une colonne de support de statif de fluoroscopie 4 est déplacée dans la direction longitudinale (axe de corps Z d'un sujet M) d'un panneau supérieur 2a, un lit 2 est mis en rotation autour d'un axe horizontal Y dans la direction transversale du panneau supérieur 2a orthogonale à la direction longitudinale, un mécanisme de rotation de lit est élevé/abaissé, et un tube à rayons X 1 est mis en rotation autour de l'axe horizontal Y par rapport à la colonne de support de statif de fluoroscopie 4. La rotation du tube à rayons X 1 autour de l'axe horizontal Y par rapport à la colonne de support de statif de fluoroscopie 4 permet à des rayons X d'être émis depuis le tube à rayons X 1 vers un détecteur de rayons X externe, et pour la réalisation de la fluoroscopie ou de l'imagerie à l'aide du détecteur de rayons X externe. En raison du fait que la fluoroscopie ou l'imagerie est réalisée à l'aide d'un détecteur de rayons X externe sans que le sujet M soit chargé sur le panneau supérieur 2a, la plage de l'imagerie fluoroscopique dans la direction verticale est étendue d'une quantité proportionnelle à la plage de fonctionnement verticale du lit 2 lors de l'élévation/abaissement du lit 2, et l'imagerie fluoroscopique peut être réalisée dans diverses positions.
PCT/JP2018/039491 2018-10-24 2018-10-24 Dispositif de fluoroscopie à rayons x WO2020084706A1 (fr)

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PCT/JP2018/039491 WO2020084706A1 (fr) 2018-10-24 2018-10-24 Dispositif de fluoroscopie à rayons x

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112315492A (zh) * 2020-11-26 2021-02-05 张桂英 一种放射科立体成像检查装置
CN115265932A (zh) * 2022-09-27 2022-11-01 河北华丰工业集团有限公司 一种变压器散热器单片测试装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009233158A (ja) * 2008-03-27 2009-10-15 Fujifilm Corp 放射線診断装置および放射線撮影方法
WO2014119164A1 (fr) * 2013-01-31 2014-08-07 株式会社 島津製作所 Dispositif de radiographie
JP2015229096A (ja) * 2014-06-09 2015-12-21 株式会社日立メディコ Ｘ線透視撮影装置
JP2017018534A (ja) * 2015-07-15 2017-01-26 株式会社日立製作所 Ｘ線画像診断装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009233158A (ja) * 2008-03-27 2009-10-15 Fujifilm Corp 放射線診断装置および放射線撮影方法
WO2014119164A1 (fr) * 2013-01-31 2014-08-07 株式会社 島津製作所 Dispositif de radiographie
JP2015229096A (ja) * 2014-06-09 2015-12-21 株式会社日立メディコ Ｘ線透視撮影装置
JP2017018534A (ja) * 2015-07-15 2017-01-26 株式会社日立製作所 Ｘ線画像診断装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112315492A (zh) * 2020-11-26 2021-02-05 张桂英 一种放射科立体成像检查装置
CN115265932A (zh) * 2022-09-27 2022-11-01 河北华丰工业集团有限公司 一种变压器散热器单片测试装置

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