JP5345866B2 - X-ray imaging table, X-ray imaging table unit, and X-ray diagnostic apparatus - Google Patents

Description

  The present invention relates to an X-ray imaging table, an X-ray imaging table unit, and an X-ray diagnostic apparatus, and more particularly to a technique suitable for X-ray imaging using a portable X-ray detector.

  Conventionally, there is a mobile X-ray detector configured separately from the main body of the X-ray imaging apparatus. For example, Patent Document 1 discloses a portable FPD (flat panel detector) that can be used for both still image shooting and moving image shooting. Since a mobile X-ray detector such as this portable FPD can be carried by a single X-ray detector, it is easier to handle than an X-ray detector configured integrally with the X-ray imaging apparatus body. is there.

JP 2008-83031 A

  However, a mobile X-ray detector such as that disclosed in Patent Document 1 is set at the imaging position of an X-ray imaging table (for example, a supine imaging table or a standing imaging table) at the time of X-ray imaging, or used as an X-ray detector. In order to set the image reading apparatus for reading the stored X-ray image information, it is necessary to carry it. In particular, in the case of a portable FPD, there is a problem that further labor for charging is required.

  The present invention has been made in view of the above circumstances, and an X-ray imaging table, an X-ray imaging table unit, and an X-ray diagnosis that can further improve the workability of X-ray imaging using a mobile X-ray detector. An object is to provide an apparatus.

  An X-ray imaging apparatus according to the present invention is an X-ray imaging table that performs X-ray imaging of a subject using an X-ray detector configured separately from an X-ray imaging apparatus main body provided with an X-ray source. A storage unit that stores the X-ray detector in the X-ray imaging table so that the X-ray detector can be taken in and out, and an image reading unit that reads X-ray image information stored in the X-ray detector stored in the storage unit And.

  The X-ray imaging table unit according to the present invention performs X-ray imaging by lying down on a subject using an X-ray detector configured separately from an X-ray imaging apparatus main body provided with an X-ray source. An X-ray imaging table unit comprising a supine imaging table and a standing imaging table that performs standing imaging using the X-ray detector, wherein the supine imaging table includes the X-ray detector. A storage section that is detachably stored in the recumbent imaging table; and an image reading section that reads X-ray image information stored in the X-ray detector stored in the storage section. The imaging stand includes an attaching means for detachably attaching the X-ray detector.

  An X-ray diagnostic apparatus according to the present invention lies on an X-ray imaging apparatus main body having an X-ray source, an X-ray detector configured separately from the X-ray imaging apparatus main body, and a subject. A recumbent radiography table that performs X-ray imaging, and a storage unit that stores the X-ray detector in the recumbent radiography table so that the X-ray detector can be taken in and out, and the X-ray detector stored in the storage unit. An upright imaging table that includes an image reading unit that reads stored X-ray image information, and a vertical imaging table that performs vertical imaging using the X-ray detector, wherein the X-ray detector is attached and detached. And a standing photographing stand having attachment means for freely attaching.

  According to the present invention, X-ray imaging is performed in a state where an X-ray detector configured separately from the main body of the X-ray imaging apparatus is housed in an X-ray imaging table, and an X-ray image is obtained without taking out the X-ray detector. Since information can be read, it is possible to save the trouble of carrying the X-ray detector during a series of steps from X-ray imaging to reading of X-ray image information. Further, after a series of steps from the X-ray imaging is completed, the X-ray detector can be stored in the storage unit of the X-ray imaging table, and the next time X-ray imaging is performed, the X-ray detector. Can be saved in the X-ray imaging table. For this reason, it is possible to improve the workability of X-ray imaging by eliminating the hassle of X-ray imaging, and reduce the risk of X-ray detector breakage due to dropping or collision by reducing the frequency of carrying the X-ray detector. can do.

  Furthermore, since the X-ray detector stored in the supine imaging stand can be taken out as necessary, when taking a standing position, the x-ray detector is taken out from the supine stand and attached to the standing stand. Shooting can be performed. Therefore, it is possible to perform both the standing position imaging and the standing position imaging using one X-ray detector.

Overall configuration diagram of the X-ray diagnostic apparatus 10 according to the first embodiment External view of the supine photography stand 30 The top view which shows the state which pulled out portable FPD from the supine position stand 30 The perspective view which shows the state which pulled out portable FPD from the supine position stand 30 The perspective view which shows the state which removed the top plate 31 of the supine position imaging stand 30, and mounted | wore with the inner board 31b which forms the bottom of the accommodating part 32. The perspective view which shows the state which removed the top plate 31 and the inner board 31b of the supine position stand 30. Configuration diagram of detector feeding unit 100 A plan view for explaining the incorporation of the portable FPD 80 into the standing position imaging stand 40 Front view explaining installation of portable FPD80 External view of the recumbent photographing stand 36 according to the second embodiment The top view which shows the state which pulled out portable FPD from the supine position stand 36 The perspective view which shows the state which pulled out portable FPD from the recumbent photographing stand 36

<< First Embodiment >>
Hereinafter, a first embodiment to which the present invention is applied will be described. Hereinafter, in all drawings explaining the embodiment of the present invention, the same reference numerals are given to those having the same function, and the repeated explanation thereof is omitted.

  In the first embodiment, an upright photographing stand having a tracking station for reading and erasing X-ray image information recorded in a portable FPD and charging, and a standing photographing stand to which a portable FPD can be detachably attached. And an X-ray diagnostic apparatus 10 including an X-ray imaging table unit including the X-ray imaging unit and an X-ray irradiation unit that generates X-rays.

  FIG. 1 is an overall configuration diagram of an X-ray diagnostic apparatus 10 according to the first embodiment. The X-ray diagnostic apparatus 10 includes an X-ray irradiation unit 20 that irradiates the subject 1 with X-rays, a supine imaging table 30 that performs X-ray imaging with the subject 1 lying down, and standing-up imaging of the subject 1. And a standing position photographing stand 40 that is installed in the photographing room 2.

  The X-ray irradiation unit 20 has an X-ray diaphragm unit 21 for limiting the X-ray irradiation field irradiated to the imaging region of the subject 1 and an operating device 22 for setting various parameters for controlling the entire X-ray diagnostic apparatus 10. And comprising. The supine imaging stand 30 mounts the portable FPD 80 disposed facing the X-ray irradiation unit 20 with the subject 1 interposed therebetween on the detector tray, and moves along the longitudinal direction of the supine photographing stand 30. A tray transport unit 70 is provided. The standing position photographing stand 40 includes an attachment portion 41 for detachably attaching the portable FPD 80.

  Further, the X-ray diagnostic apparatus 10 includes an image processing apparatus 50 and a display unit 60 provided in an operation room 5 separated from the imaging room 2 by separating the wall 3 and the door 4. The image processing apparatus 50 reads X-ray image information detected by the portable FPD 80, collects image data, and performs various image processing on the image data to obtain desired image data. The display unit 60 converts the image data processed by the image processing device 50 into a display image, and displays an X-ray image.

  Next, the configuration of the supine position photographing stand 30 will be described with reference to FIGS. 2 is an external view of the supine photographing stand 30, FIG. 3 is a plan view in a state where the flat detector is unloaded from the supine photographing stand 30, and FIG. 4 is a unloading the flat detector from the supine photographing stand 30. FIG. 5 is a perspective view showing a state in which the top plate 31 of the lying position photographing stand 30 is removed and the inner plate 31b forming the bottom of the storage portion 32 is attached, and FIG. It is a perspective view which shows the state which removed the inner plate 31b.

  As shown in FIG. 2, the supine imaging stand 30 includes a top plate 31 on which the subject 1 is placed, and a storage unit 32 having a storage space 33 for storing the portable FPD 80 below the top plate 31. The top plate 31 and the storage unit 32 are configured so that X-ray imaging can be performed with the portable FPD 80 stored in the storage unit 32. For example, the storage unit 32 stores the portable FPD 80 with the X-ray detection surface facing the X-ray source, and the portion located between the X-ray source and the portable FPD 80 in the storage unit 32 and the top plate 31 are , Composed of a material capable of transmitting X-rays. For the portion on the X-ray path, it is preferable to use a material having a higher X-ray transmittance, or to further reduce the thickness of the member on the X-ray path while ensuring a load resistance. Furthermore, it is preferable that the portable FPD 80 is positioned upward (position closer to the top plate 31) in the storage portion 32 so that the distance between the X-ray source and the portable FPD 80 is as close as possible. The storage space 33 is formed as a space in the recumbent photographing stand 30 whose upper part is covered by the back surface of the top plate 31 and whose lower part is covered by the inner plate 31b. A tracking station 90 for charging the portable FPD 80 and reading / erasing detected X-ray image information is provided at the longitudinal end portion of the supine imaging stand 30.

  An insertion port 35 for inserting the portable FPD 80 into the storage unit 32 and a front door 34 for opening and closing the insertion port 35 are provided on the side surface of the lying position photographing table 30. A transport mechanism 74 for moving the detector tray 71 along the longitudinal direction is provided in the storage section 32 of the supine photographing stand 30. The transport mechanism 74 includes a rail 72 arranged along the longitudinal direction on the inner plate 31 b and a drive device 73 for moving the detector tray 71 along the rail 72.

  Opening and closing the front door 34 opens and closes the insertion opening 35 in the lying position photographing table 30. When the front door 34 is opened, the detector tray 71 on which the portable FPD 80 is placed and stored in the storage unit 32 is discharged from the inside of the storage unit 32 toward the outside (FIGS. 3 and 4). By moving the detector tray 71 in and out of the storage unit 32, the portable FPD 80 can be detachably stored in the storage unit 32.

  The tracking station 90 is provided at one end portion in the longitudinal direction of the supine photographing stand 30, and is provided so that the upper surface thereof is substantially horizontal with the upper surface of the inner plate 31b. The detector tray 71 includes a detector feeding unit 100 for discharging the portable FPD 80 onto the tracking station 90 and sending the portable FPD 80 connected to the tracking station to the detector tray 71.

  Next, the detector feeding unit 100 will be described with reference to FIG. FIG. 7 is a configuration diagram of the detector feeding unit 100. FIG. 7A shows the state of the detector feeding unit 100 during charging, and FIG. 7B shows the state of the detector feeding unit 100 during imaging. Indicates the state. The detector feed unit 100 is screwed into the feed screw 101 installed in the detector tray 71 along the longitudinal direction, and linearly moves on the feed screw 101 as the feed screw 101 rotates. From the moving nut 102, the motor 103, the timing belt 104 that transmits the driving force of the motor 103 to the feed screw 101 and rotates the feed screw 101, and the two protrusions 105 a and 105 b erected on the nut 102 And holding unit 105. The protrusion 105 a is inserted into the grip opening 81 of the portable FPD 80. In addition, the grip portion 82 that is a portion gripped by the hand inserted into the grip opening 81 in the portable FPD 80 is positioned between the protrusions 105a and 105b. In this state, when the nut 102 moves back and forth on the feed screw 101, the portable FPD 80 is sent from the detector tray 71 to the tracking station 90, and is stored in the detector tray 71 from the tracking station 90.

  Next, the standing position photographing stand 40 will be described with reference to FIGS. FIG. 8 is a plan view for explaining the incorporation of the portable FPD 80, and FIG. 9 is a front view for explaining the incorporation of the portable FPD 80.

  The standing imaging stand 40 includes a support column 42 standing on the floor and an X-ray detection unit 43 that moves in the vertical direction along the support column 42. The X-ray detection unit 43 includes an attachment unit 41 to which the portable FPD 80 is detachably attached. The attachment portion 41 includes a storage space 41a for storing the portable FPD 80 in the X-ray detection unit 43 and a holding portion 41b for fixing the position of the stored portable FPD 80. The holding portion 41b may be configured as a rail that regulates the traveling direction of the portable FPD 80. The upper part of the X-ray detection unit 43 is provided with a chin rest portion 44 that is a depression for placing the subject's chin at the time of standing-up imaging, and the X-ray detection unit 43 is photographed by holding the subject on the back surface. Handles 45R and 45L are provided for maintaining the posture.

  Next, the operation of the first embodiment will be described. In a state where the portable FPD 80 is not housed in the recumbent photographing stand 30, the detector tray 71 stands by at a position where the insertion port 35 is located in the longitudinal direction. As preparation for starting normal position photographing, the operator opens the front door 34 of the position photographing table 30 and inserts the portable FPD 80 into the storage portion 32 through the insertion port 35. Then, the portable FPD 80 is placed on the detector tray 71 with the protruding portion 105a positioned at the holding opening 81 of the portable FPD 80 and the holding portion 82 positioned between the protruding portions 105a and 105b. Thereafter, the front door 34 is closed.

  When the operator designates an imaging region, the transport mechanism 74 transports the detector tray 71 to the imaging region. X-rays are irradiated from the X-ray irradiation unit 20, and the portable FPD 80 detects transmitted X-rays and records X-ray image information.

  When the X-ray irradiation is completed, the transport mechanism 74 moves the detector tray 71 to the vicinity of the tracking station 90. The detector feed unit 100 rotates the feed screw 101 so that the portable FPD 80 held by the holding unit 105 is discharged to the tracking station 90. The portable FPD 80 is stored and connected to the tracking station 90. The tracking station 90 receives the X-ray image information and transmits this X-ray image information to the image processing unit 50. The image processing unit 50 performs image processing based on the X-ray image information, generates display image data, and displays it on the display unit 60.

  When reading of the X-ray image information at the tracking station 90 is completed, the X-ray image information is erased. When the next imaging instruction is input, the detector feeding unit 100 ejects the portable FPD 80 from the tracking station 90 toward the detector tray 71. Then, the detector tray 71 moves according to the imaging region of the subject, and X-ray image information is detected by the portable FPD 80. When an instruction for taking out the portable FPD 80 from the upright photographing stand 30 is input, the detector feeding unit 100 discharges the portable FPD 80 toward the detector tray 71 as described above, and the detector tray 71 is inserted into the insertion slot 35. Move up.

  When shooting proceeds and the portable FPD 80 needs to be charged, the transport mechanism 74 automatically retracts, and the portable FPD 80 is stored in the tracking station 90 and charged.

  Alternatively, the portable FPD 80 may be sent to the detector tray 71 and waited at the insertion port 35 every time photographing is completed. As a result, the portable FPD 80 can be taken out as soon as the front door 34 is opened.

  Alternatively, when shooting is not performed, the portable FPD 80 may be always stored in the tracking station 90 and charged during that time.

  At the time of standing imaging, the operator opens the front door 34, takes out the portable FPD 80, attaches to the X-ray detection unit 43 of the standing imaging platform 40, and performs imaging.

  According to the above embodiment, the portable FPD 80 can be detachably attached to each of the lying position photographing stand 30 and the standing position photographing stand 40, so that one portable FPD 80 can be used for both the standing position photographing and the standing position photographing. can do. Further, since the tracking station 90 is built in the supine imaging stand 30, X-ray image information can be read and charged without taking out the portable FPD 80 after taking the supine imaging. Therefore, it is not necessary to carry the portable FPD 80 every time shooting or charging is performed, the risk of breakage or loss associated with the handling of the portable FPD 80 can be reduced, and troubles during shooting and charging can be reduced.

  Furthermore, in this embodiment, the tracking station 90 is positioned at the end of the top plate 31 so that the height of the upper surface of the detector tray 71 and the upper surface of the tracking station 90 is substantially the same. Since the portable FPD 80 is stacked on the tracking station 90 for shooting, the height of the top 31 is set to the height (thickness) of the tracking station 90. It can be lowered considerably.

<< Second Embodiment >>
In the second embodiment, the supine photographing stand 36 shown in FIG. 10 is used instead of the supine photographing stand of the first embodiment. A difference between the supine position photographing stand 36 according to the second embodiment and the supine position photographing stand 30 according to the first embodiment is mainly an attachment position of the tracking station 90. In 1st embodiment, since it attaches to the lower end of the top plate 31, it is possible to make the minimum height of the top plate 31 low. In the second embodiment, the portable FPD 80 is stacked in the tracking station 90 and stored in the storage unit 32. Thereby, although the minimum height of the top plate 31 is higher than in the first embodiment, since the portable FPD 80 is always stored in the tracking station 90, continuous shooting can be performed without worrying about running out of charge.

  Hereinafter, the supine photographing stand according to the second embodiment will be described with reference to FIGS. 10, 11, and 12. FIG. 10 is an external view of the supine photographing stand 36 according to the second embodiment. FIG. 11 is a plan view showing a state in which the portable FPD 80 of the lying position photographing stand 36 is pulled out, and FIG. 12 is a perspective view showing a state in which the portable FPD 80 of the lying position photographing stand 36 is pulled out.

  The recumbent photographing stand 36 of the present embodiment includes a front door 34 on the side surface as in the first embodiment. Opening and closing the front door 34 opens and closes the insertion port 35 of the lying position photographing stand 36. Although not shown, the recumbent photographing table 36 has an advancing / retreating mechanism (for example, a rail along the short direction of the recumbent photographing table 36 and a tracking station 90 along the rail). And a moving mechanism (for example, a transport mechanism 74) that moves in the storage unit 32 along the longitudinal direction of the supine photographing stand 36 and positions the portable FPD 80 at the photographing position. And a device that transports the tracking station 90 instead of the detector tray 71).

  The tracking station 90 and the portable FPD 80 include a connector (not shown) for electrically connecting each other. Then, when the portable FPD 80 is placed on the upper surface of the tracking station 90, the connectors of the tracking station 90 and the portable FPD 80 are connected to be energized.

  Next, the operation of the supine photographing stand 36 of this embodiment will be described. First, when the front door 34 is opened, the tracking station 90 is discharged from the insertion port 35 to the outside of the storage portion 32 (FIGS. 11 and 12).

  In this state, when the portable FPD 80 is placed on the tracking station 90, the connectors of the tracking station 90 and the portable FPD 80 are connected and the power is turned on. Subsequently, in a state where the portable FPD 80 is placed on the upper surface of the tracking station 90 (energized state), the portable door is integrally housed in the housing portion 32 from the insertion port 35 by the advance / retreat mechanism, and the front door 34 is closed. The tracking station 90 and the portable FPD 80 are moved together in the storage unit 32 by a moving mechanism and positioned at the imaging site. X-ray imaging is performed while the portable FPD 80 is placed on the upper surface of the tracking station 90, and X-ray image information is accumulated in the portable FPD 80. When the X-ray imaging is completed, the tracking station 90 reads and deletes X-ray image information from the portable FPD 80. Then, it waits for the next X-ray imaging while charging the portable FPD 80. When the front door 34 is opened again, the moving mechanism moves the portable FPD 80 and the tracking station 90 to the insertion port 35, and the advance / retreat mechanism discharges the tracking station 90 on which the portable FPD 80 is placed from the insertion port 35 to the outside of the storage unit 32. The portable FPD 80 can be taken out.

  According to this embodiment, even when the remaining battery level of the portable FPD 80 decreases during shooting, charging can be performed while shooting. In addition, the detector feeding unit 100 that is necessary in the first embodiment is not necessary, and the labor involved in manufacturing and maintenance can be reduced.

  In the above embodiment, the portable FPD is used as the X-ray detector and the tracking station is used as the image reading unit. However, the mobile X-ray detector configured separately from the X-ray imaging apparatus and the X-ray detector As long as the apparatus reads the recorded X-ray image information, the X-ray detector and the image reading unit are not limited to the above example. For example, an X-ray detector that uses an imaging plate coated with a photostimulable phosphor on a substrate, and an X-ray absorption distribution of a subject accumulated as a latent image on the imaging plate as an image reading unit. You may use the image reading apparatus (CR apparatus) which reads image information and erases the X-ray image information after reading.

  The present invention can be applied not only for medical use but also for applications where X-ray imaging in a state in which the flat detector is detachably stored in the X-ray imaging table is indispensable.

1: Subject, 2: Imaging room, 3: Wall, 4: Door, 5: Operation room, 10: X-ray diagnostic apparatus, 20: X-ray irradiation unit, 21: X-ray diaphragm unit, 22: Controller, 30 : Standing table, 31: Top plate, 31b: Inner plate, 32: Storage part, 33: Storage space, 34: Front door, 35: Insertion port, 36: Standing table, 40: Standing table 41: mounting portion, 41a: storage space, 41b: holding portion, 42: support, 43: X-ray detection portion, 44: chin rest portion, 45R: handle, 45L: handle, 50: image processing device, 60: display portion 71: detector tray, 72: rail, 73: drive device, 74: transport mechanism, 80: portable FPD, 81: gripping opening, 82: gripping part, 90: tracking station, 100: detector feeding part, 101: Feed screw, 102: Nut, 103: Motor, 104: Timein Belt, 105: holding portion, 105a: protruding portion, 105b: projections

Claims (6)

An X-ray imaging table for X-ray imaging of a subject using a portable FPD (Flat Panel Detector) ,
A top board on which the subject is mounted;
A storage space provided under the top plate for storing the portable FPD in a removable manner;
A tracking station disposed below a longitudinal end of the top plate;
A detector tray for mounting the portable FPD on the upper surface in the storage space;
A transport mechanism for moving the detector tray between the storage space and the tracking station;
The tracking station has an upper surface on which the portable FPD is placed, a function of charging the portable FPD placed on the upper surface, a function of reading out X-ray image information recorded on the portable FPD, and A function of erasing X-ray image information recorded in the portable FPD;
The height of the upper surface of the detector tray in the storage space is the same as the height of the upper surface of the tracking station, and the portable FPD is placed on the upper surface of the detector tray at the time of X-ray imaging, charged, The X-ray imaging table is mounted on the upper surface of the tracking station when reading and erasing X-ray image information. The detector tray is provided with a detector feeding section,
The detector feed unit, Rutotomoni moves the portable FPD placed on the upper surface of the detector tray to the upper surface of the tracking station, the portable FPD from an upper surface of the tracking station to the upper surface of the detector tray The X-ray imaging table according to claim 1 , wherein the X-ray imaging table is moved . The detector feeding unit is
A feed screw provided along the longitudinal direction in the detector tray;
A nut advances retreat along the feed screw,
A holding means connected to the nut and holding the portable FPD placed on the detector tray;
A drive device that rotationally drives the feed screw;
The X-ray imaging table according to claim 3. An insertion port for inserting the portable FPD into the storage unit;
An opening / closing member that opens and closes the insertion port,
The X-ray imaging table according to claim 1. An X-ray imaging table according to any one of claims 1 to 4 and a standing imaging table that performs a standing imaging using the portable FPD ,
The standing position photographing stand includes attachment means for detachably attaching the portable FPD ,
X-ray imaging stand unit characterized by this. An X-ray imaging table unit according to claim 5 ;
An X-ray imaging apparatus body equipped with an X-ray source;
An X-ray diagnostic apparatus comprising: