JP2009291531A - X-ray diagnostic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To intuitively operate the movement of an imaging system and a top board by using an operation device arranged in an operation console. <P>SOLUTION: A holding device 8 to which the imaging system having an X-ray generating part 2 and an X-ray detecting part 3 is attached and a bed part 9 having the top board with a subject 150 placed thereon are operated by using the operation device arranged in the operation console 11. In this case, the operation device is moved or turned in a direction being the same as the movement direction of the imaging system and the top board, thereby intuitively operating the movement of the imaging system and the top board. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an X-ray diagnostic apparatus, and more particularly to an X-ray diagnostic apparatus having an imaging console attached to a holding device and an operation console for setting a moving direction of a top plate provided on a bed.

  Medical image diagnostic technology using an X-ray diagnostic apparatus, an MRI apparatus, an X-ray CT apparatus, or the like has made rapid progress with the development of computer technology, and is indispensable in today's medical care.

  In recent years, image diagnosis using an X-ray diagnostic apparatus has progressed mainly in the circulatory field with the development of catheter procedures. An X-ray diagnostic apparatus for the purpose of cardiovascular diagnosis generally includes an X-ray generator that irradiates a subject with X-rays, an X-ray detector that detects X-rays transmitted through the subject, and an X-ray generator And a holding device that holds the X-ray detection unit, a bed unit having a top plate on which the subject is placed, an image data generation unit that generates image data based on projection data obtained from the X-ray detection unit, and the like It is constituted by. The holding device described above includes a C arm and an Ω arm that can move or rotate the X-ray generation unit and the X-ray detection unit (hereinafter collectively referred to as an imaging system) in a predetermined direction. The X-ray imaging from a suitable position and direction of the subject is enabled by using it together with a top plate that allows the subject to move horizontally and vertically.

  Since the holding device provided in such a conventional X-ray diagnostic apparatus is configured by a relatively simple mechanism, the moving direction and the rotating direction of the imaging system attached to the C arm and the Ω arm are restricted. It was. That is, the imaging region for the subject is mainly determined by the range of movement of the top board, and X-ray imaging at an arbitrary position and direction and wide-range X-ray imaging are difficult. Further, since the holding device cannot be retracted to a predetermined position, a doctor (hereinafter referred to as an operator) who injects a contrast medium or administers an anesthetic to a subject before and after X-ray imaging. The working space could not be secured.

In order to solve such problems, an X-ray diagnostic apparatus has been proposed in which the holding device is provided with a large number of moving mechanism units and rotating mechanism units, thereby improving the degree of freedom of imaging and securing a working space ( For example, see Patent Document 1.)
JP 2006-239126 A

  According to the method described in Patent Document 1 described above, the position and direction of the imaging system can be arbitrarily set, and the body axis direction (longitudinal direction) of the subject and the direction orthogonal to the body axis direction (lateral direction) ) Can move the imaging system in a wide area. For this reason, the degree of freedom of X-ray imaging has been greatly improved, and it has become easy to secure a working space.

  However, when the imaging apparatus is moved to a position suitable for X-ray imaging of the subject by operating a holding device having a large number of moving mechanism units and rotating mechanism units, the mechanism unit provided in the operation console Since it is necessary to sequentially operate various operation devices corresponding to each device, the operation becomes complicated, and there is a risk of moving the imaging system in the wrong direction. In addition, since it is necessary to provide the operation console with a plurality of operation devices corresponding to many movement mechanisms and rotation mechanisms, the size of the operation console has been greatly increased. For this reason, it is difficult for the operator to access the subject, and a plurality of operators may be required.

  Furthermore, since the movement direction of the operation device does not necessarily match the movement direction of the imaging system and the top plate, an intuitive operation is impossible. Therefore, it takes a lot of time to move the imaging system to a desired position. It had the problem that.

  The present invention has been made in view of such problems, and its purpose is to perform X-ray imaging by moving an imaging system attached to a holding device or a top plate provided on a bed part. By moving the operation device provided on the operation console in a direction corresponding to the moving direction of the imaging system and the top plate, the imaging system and the top plate can be accurately and easily moved to a position suitable for X-ray imaging. The object is to provide an X-ray diagnostic apparatus.

  In order to solve the above problems, an X-ray diagnostic apparatus according to the present invention according to claim 1 moves or rotates an imaging system having an X-ray generation unit and an X-ray detection unit and a top plate on which a subject is placed. In the X-ray diagnostic apparatus for performing X-ray imaging, a holding device having a mechanism unit for holding the imaging system and moving or rotating it in a desired direction, and an operation for operating the movement or rotation of the imaging system An operation console provided with a device, and mechanism drive means for driving the mechanism unit provided in the holding device based on movement information of the operation device, the holding device being supplied from the mechanism drive means The imaging system is moved or rotated in a direction corresponding to the moving direction or the rotating direction of the operation device based on the driving signal.

  The X-ray diagnostic apparatus of the present invention according to claim 5 performs X-ray imaging by moving or rotating an imaging system having an X-ray generation unit and an X-ray detection unit and a top plate on which a subject is placed. In the X-ray diagnostic apparatus to be performed, a bed portion having a mechanism for moving the top plate in a desired direction, an operation console provided with an operation device for operating the movement of the top plate, and movement of the operation device Mechanism driving means for driving the mechanism portion provided in the bed portion based on information, and the bed portion allows the top plate to be attached to the operation device based on a drive signal supplied from the mechanism driving means. It is characterized by moving in a direction corresponding to the moving direction.

  According to the present invention, when X-ray imaging is performed by moving an imaging system attached to a holding device or a top plate provided on a bed part, an operation device provided on an operation console is moved to the imaging system and the top plate. By moving in a direction corresponding to the direction, the imaging system and the top plate can be accurately and easily moved to positions suitable for X-ray imaging.

  Embodiments of the present invention will be described below with reference to the drawings.

  In an embodiment of the present invention described below, the operation console includes a holding device to which an imaging system having an X-ray generation unit and an X-ray detection unit is attached and a bed unit having a top plate on which the subject is placed. When operating using an operation device such as an operation stick, the movement of the imaging system and the top board is intuitively operated by moving or rotating the operation device in the same direction as the movement direction of the imaging system and the top board. A possible X-ray diagnostic apparatus will be described.

  In the following embodiments, an X-ray diagnostic apparatus having a floor-standing type holding device for the purpose of cardiovascular diagnosis will be described. However, an X-ray diagnostic apparatus having an overhead traveling type holding apparatus may be used. An X-ray diagnostic apparatus having a holding device corresponding to digestive organ diagnosis may be used.

(Device configuration)
The configuration of the X-ray diagnostic apparatus according to the embodiment of the present invention will be described with reference to FIGS. However, FIG. 1 is a block diagram showing an overall configuration of the X-ray diagnostic apparatus, FIG. 2 is a block diagram showing a specific configuration of an X-ray imaging unit included in the X-ray diagnostic apparatus, and FIG. 3 is an X-ray imaging unit. 2 is a configuration diagram of a holding device to which an imaging system (that is, an X-ray generation unit and an X-ray detection unit) is attached and a bed unit on which a subject is placed. FIG.

  An X-ray diagnostic apparatus 100 of the present embodiment shown in FIG. 1 includes an X-ray imaging unit 1 that irradiates a subject 150 with X-rays and detects X-rays transmitted through the subject 150 to generate projection data. The image data generation unit 6 that generates image data based on the projection data, the display unit 7 that displays the obtained image data, the X-ray generation unit 2 and the X-ray detection unit 3 ( A holding device 8 that holds the imaging system) and moves or rotates around the subject 150 in a desired direction; and a bed unit 9 that moves a top plate (not shown) on which the subject 150 is placed in a desired direction. Yes.

  Furthermore, the X-ray diagnostic apparatus 100 includes a mechanism drive unit 10 that supplies drive signals to a moving mechanism unit and a rotation mechanism unit, which will be described later, provided in each of the holding device 8 and the bed unit 9, an imaging system, and a ceiling. An operation console 11 for setting a moving direction of the plate and inputting a command signal (trigger signal) indicating the start and end of the movement and the above-mentioned units are controlled in an integrated manner to perform X-ray imaging on the subject 150. A system control unit 12 is provided.

  As shown in FIG. 1, the X-ray imaging unit 1 includes an X-ray generation unit 2 that irradiates the subject 150 with X-rays, an X-ray detection unit 3 that detects X-rays transmitted through the subject 150, and a detection A projection data generation unit 4 that generates projection data based on the generated X-rays and a high voltage generation unit 5 that supplies a high voltage to the X-ray generation unit 2 are provided.

  Next, specific examples of the above-described units included in the X-ray imaging unit 1 will be described in more detail with reference to FIG.

  The X-ray generator 2 shown in FIG. 2 forms an X-ray weight (cone beam) for the X-ray tube 21 that irradiates the subject 150 with X-rays and the X-rays emitted from the X-ray tube 21. X-ray diaphragm 22 is provided. The X-ray tube 21 is a vacuum tube that generates X-rays, and accelerates electrons emitted from a cathode (filament) by a high voltage to collide with a tungsten anode to generate X-rays. On the other hand, the X-ray diaphragm 22 is located between the X-ray tube 21 and the subject 150 and has a function of narrowing the X-ray beam irradiated from the X-ray tube 21 to a predetermined irradiation field size.

  The X-ray detection unit 3 includes a method of directly converting X-rays into electric charges and a method of converting X-rays into light and then converting them into electric charges. In the present embodiment, the former will be described, but the latter may be used. That is, the X-ray detection unit 3 in the present embodiment converts the X-ray transmitted through the subject 150 into electric charges and accumulates them, and a drive for reading out the electric charges accumulated in the flat detectors 31. A gate driver 32 for generating a pulse is provided.

  The flat detector 31 includes a plurality of two-dimensionally arranged minute detection elements. Each detection element senses X-rays and generates a charge according to an incident X-ray dose. A charge storage capacitor for storing the generated charge and a TFT (thin film transistor) (not shown) for reading out the charge stored in the charge storage capacitor at a predetermined timing are provided. The accumulated charges are sequentially read out by drive pulses supplied by the gate driver 32.

  On the other hand, the projection data generation unit 4 converts a charge read out in parallel in units of rows or columns from the flat detector 31 into a voltage and a voltage / voltage converter 41, and outputs the charge / voltage converter 41. An A / D converter 42 for converting into a digital signal and a parallel / serial converter 43 for converting the digitally converted parallel signal into a time-series serial signal are provided.

  The high voltage generator 5 is supplied from a system controller 12 and a high voltage generator 52 that generates a high voltage applied between the anode and the cathode in order to accelerate thermionic electrons generated from the cathode of the X-ray tube 21. An X-ray control unit 51 that controls X-ray irradiation conditions such as tube current, tube voltage, irradiation time, irradiation timing, etc. in the high voltage generator 52 is provided according to the instruction signal.

  Returning to FIG. 1, the image data generation unit 6 includes a projection data storage unit and an image calculation unit (not shown), and the projection data storage unit is a time series supplied from the projection data generation unit 4 of the X-ray imaging unit 1. Two-dimensional projection data is generated by sequentially storing typical projection data. On the other hand, the image calculation unit performs image processing such as filtering processing on the two-dimensional projection data generated in the projection data storage unit to generate image data, and further, for the obtained plurality of image data Performs composition processing, subtraction processing (subtraction), and the like.

  The display unit 7 includes a display data generation unit, a data conversion unit, and a monitor (not shown). The display data generation unit generates display data by superimposing incidental information such as subject information and image data generation conditions on the image data supplied from the image calculation unit of the image data generation unit 6, and the data conversion unit The obtained display data is subjected to D / A conversion and TV format conversion and displayed on the monitor.

  Next, the movement or rotation of the holding device 8 and the bed unit 9 and the units constituting them will be described with reference to FIG. FIG. 3 shows a table 91 on which an X-ray generator 2 and an X-ray detector 3 (imaging system) have a holding device 8 having a C-arm 81 attached to its ends and a subject 150. In this figure, the body axis direction of the subject 150 (longitudinal direction of the top plate 91) is the y-axis direction, the holding device 8 and the bed unit 9 are shown in order to facilitate the following description. The direction perpendicular to the floor surface 160 on which is installed is the z-axis direction, and the y-axis direction and the direction perpendicular to the z-axis direction (the transverse direction of the top plate 91) are the x-axis direction.

  The holding device 8 includes a C arm 81, an arm holder 82, an arm column 83, and a floor turning arm 84, and one end of the floor turning arm 84 is an arrow centering on a floor rotation axis z 1 perpendicular to the floor surface 160. At the other end of the floor swivel arm 84, an arm column 83 having an arm column rotation axis z2 parallel to the z-axis direction is rotatable in the direction of the arrow c. Is attached.

  Further, an arm holder 82 is attached to the side surface of the arm column 83 so as to be rotatable in the direction of the arrow b around the arm main rotation axis z3 perpendicular to the z-axis direction. A C-arm 81 having the X-ray generation unit 2 and the X-ray detection unit 3 mounted on the end thereof is attached to be slidable in the direction of arrow a about the arm slide center axis z4.

  Further, the X-ray generation unit 2 and the X-ray detection unit 3 (imaging system) attached to the end of the C arm 81 can be moved in the direction of the arrow e, and the X-ray detection unit 3 Attached to an X-ray diaphragm 22 (see FIG. 2) provided in the X-ray generator 2 so as to be rotatable in the direction of arrow f about the imaging system rotation axis z5.

  The above-mentioned unit constituting the holding device 8 includes a slide mechanism portion that slides the C arm 81 in the a direction about the arm slide central axis z4, and the arm holder 82 about the arm main rotation axis z3 in the b direction. A holder rotating mechanism section that rotates to the right, a column rotating mechanism section that rotates the arm column 83 in the c direction around the arm column rotation axis z2, and a floor turning arm 84 that rotates in the d direction around the floor rotation axis z1. A floor swivel arm turning mechanism (not shown) to be moved, an imaging system moving mechanism for moving the imaging system in the e direction, and an imaging system rotating axis z5 as a center to rotate the imaging system in the f direction. An imaging system rotating mechanism section (none of which is shown) is provided.

  On the other hand, the couch unit 9 includes a vertical movement mechanism unit that vertically moves the top plate 91 on which the subject 150 is placed in the h direction (z-axis direction) and the top plate 91 in the longitudinal direction ga (y-axis direction) or the lateral hand. A horizontal direction moving mechanism (not shown) that slides in the direction gb (x-axis direction) is provided.

  Then, the imaging system attached to the end of the C arm 81 is placed on the top plate 91 by rotating or sliding the above-mentioned units provided in the holding device 8 and the bed unit 9 in a predetermined direction. The desired position or direction of the subject 150 can be set.

  Returning to FIG. 1, the mechanism driving unit 10 drives the holding device mechanism to supply a driving signal to the rotation mechanism unit and the moving mechanism unit provided in the holding device 8 in order to move the imaging system in a desired direction. A couch unit mechanism driving unit 102 for supplying a driving signal to a moving mechanism unit provided in the couch unit 9 in order to move the couch unit 101 and the top 91 on which the subject 150 is placed in a desired direction, and holding A mechanism drive control unit 103 that controls the device mechanism drive unit 101 and the bed unit mechanism drive unit 102 is provided.

  FIG. 4 shows specific examples of various moving mechanism units and rotating mechanism units provided in the holding device 8 and the bed unit 9 and a mechanism driving unit 10 for supplying a driving signal to these mechanism units. There is a slide mechanism 801 that slides the C arm 81 in the direction a at the joint between the C arm 81 and the arm holder 82 of the holding device 8 shown in FIG. Is provided with a holder rotating mechanism 802 for rotating the arm holder 82 in the b direction, and the arm strut 83 is rotated in the c direction at the joint between the arm column 83 and the floor turning arm 84. A column turning mechanism 803 for rotating the floor turning arm 84 in the d direction is provided at the joint between the floor turning arm 84 and the floor surface 160, respectively. . An imaging system moving mechanism unit 805 that moves the imaging system in the e direction and an imaging system rotation mechanism unit 806 that rotates the imaging system in the f direction are joined to the joint between the end of the C arm 81 and the imaging system. Is provided.

  On the other hand, in the bed part 9, the vertical movement mechanism part 901 for moving the top 91 on which the subject 150 is placed up and down in the h direction and the top 91 in the longitudinal direction (ga direction) or the lateral direction (gb direction). A horizontal movement mechanism unit 902 for sliding is provided.

  Then, each of the slide mechanism unit 801, the holder rotation mechanism unit 802, the support column rotation mechanism unit 803, the floor turning arm rotation mechanism unit 804, the imaging system movement mechanism unit 805, and the imaging system rotation mechanism unit 806 of the holding device 8. The drive signal generated by the holding device mechanism drive unit 101 based on the control signal supplied from the mechanism drive control unit 103 of the mechanism drive unit 10 is supplied to the vertical movement mechanism unit 901 of the bed unit 9 and the horizontal direction. A driving signal generated by the bed part mechanism driving unit 102 based on a control signal supplied from the mechanism driving control unit 103 is supplied to the moving mechanism unit 902.

  Next, a specific example of the operation console 11 will be described with reference to FIGS.

  FIG. 5 shows an operation console 11 provided at an end of a top plate 91 provided in the bed unit 9 as a table side console, and an operator uses various operation devices described later provided in the operation console 11. As a result, the holding device 8 and the top 91 can be operated in the vicinity of the subject 150, so that the imaging system attached to the holding device 8 can be accurately set with respect to the imaging position of the subject 150.

  Next, specific examples of various operation devices provided in the operation console 11 will be described with reference to FIG.

  FIG. 6A shows an operation device arranged on the front panel of the operation console 11. For example, the imaging system attached to the holding device 8 and the movement of the top 91 provided on the bed portion 9. The operation stick unit 111 that sets a direction and inputs a trigger signal indicating the start / end of movement, and X of the X-ray generation unit 2 to set a desired image magnification for the diagnosis target region of the subject 150 The SID adjustment lever 112 for adjusting the distance (SID: Source Image Distance) between the X-ray detector 21 and the flat detector 31 of the X-ray detector 3 and the units of the holding device 8 and the bed 9 are automatically set to preset positions. Auto-positioning setting button 113 to be arranged, floor-standing type selection button 114 and ceiling-traveling type selection button 115 for selecting a floor-standing type holding device or an overhead traveling type holding device, Emergency stop button 116 or the like for an emergency stop the operation of each unit device 8 and the bed portion 9 has is provided in the operation console 11.

  On the other hand, FIG. 6B schematically shows the structure of the operation stick unit 111 described above, and this operation stick unit 111 is provided in the imaging system or the bed unit 9 attached to the holding device 8. The operation stick 111a capable of moving / turning in a direction corresponding to the moving direction of the top plate 91 and one end (upper end) of the operation stick 111a are provided, and the movement of the imaging system and the top plate 91 is started. Alternatively, a trigger switch 111b for inputting a trigger signal indicating the end of movement and a movement / rotation for detecting the direction and position of the operation stick 111a that is attached to the other end (lower end) of the operation stick 111a and moves / rotates. A detection unit 111c is provided.

  Next, the rotation and movement of the operation stick 111a will be described with reference to FIG. When the operator depresses the trigger switch 111b in a state where the operation stick 111a is rotated (tilted) in an arbitrary α direction around the lower end portion thereof as shown in FIG. Information about the rotation direction and rotation angle (rotation information) of the operation stick 111a detected by the detection unit 111c is supplied to the mechanism drive unit 10 via the system control unit 12 together with a trigger signal supplied from the trigger switch 111b. The

  On the other hand, the holding device mechanism driving unit 101 of the mechanism driving unit 10 uses the drive control signal generated by the mechanism driving control unit 103 based on the above-described rotation information and trigger signal supplied from the system control unit 12 to hold the holding device 8. The slide mechanism unit 801 and the holder rotation mechanism unit 802 are driven. Then, the direction of the imaging system attached to both ends of the C arm 81 is set by operating the C arm 81 that slides in the direction a in FIG. 3 and the arm holder 82 that rotates in the direction b by these drive signals. To do. That is, the direction of the imaging system is set based on the rotation direction of the operation stick 111a.

  Further, as shown in FIG. 7B, when the trigger switch 111b is pressed in a state where the operation stick 111a is moved in the vertical direction (β direction), the operation stick 111a detected by the movement / rotation detection unit 111c. Information on the moving direction and moving distance (moving information) is supplied to the mechanism driving unit 10 via the system control unit 12 together with a trigger signal.

  The bed unit mechanism drive unit 102 of the mechanism drive unit 10 uses the drive control signal generated by the mechanism drive control unit 103 based on the above-described movement information supplied together with the trigger signal from the system control unit 12 in the vertical direction of the bed unit 9. The moving mechanism unit 901 is driven to move the top plate 91 of the bed unit 9 in the direction h in FIG. That is, the top 91 moves up and down in response to the up and down movement of the operation stick 111a, and the moving speed is determined based on the moving distance of the operation stick 111a.

  Furthermore, as shown in FIG. 7C, when the trigger switch 111b is pressed in a state where the operation stick 111a is rotated in the γ direction around the z axis, the movement / rotation detection unit 111c detects the operation stick 111a. The rotation information of the operation stick 111a is supplied to the mechanism drive unit 10 through the system control unit 12 together with the trigger signal supplied from the trigger switch 111b.

  At this time, the holding device mechanism driving unit 101 of the mechanism driving unit 10 uses the driving control signal generated by the mechanism driving control unit 103 based on the above-described rotation information supplied from the system control unit 12 together with the trigger signal. 8, the floor turning arm turning mechanism 804 is driven, and the floor turning arm 84 is turned in the d direction to retract the holding device 8 to a predetermined position.

  7D, the operation stick 111a is slid in the longitudinal direction (y-axis direction in FIG. 6) or the lateral direction (x-axis direction in FIG. 6) along the xy plane. When the trigger switch 111b is pressed, information on the movement direction and distance of the operation stick 111a detected by the movement / rotation detection unit 111c (movement information) is transmitted to the mechanism driving unit 10 via the system control unit 12 together with the trigger signal. Supplied to.

  The holding device mechanism driving unit 101 of the mechanism driving unit 10 uses the driving control signal generated by the mechanism driving control unit 103 based on the movement information and the trigger signal supplied from the system control unit 12 to rotate the column of the holding device 8. The moving mechanism unit 803 and the floor turning arm rotating mechanism unit 804 are driven. The imaging system attached to both ends of the C arm 81 by operating the arm support 83 rotating in the c direction and the floor turning arm 84 rotating in the d direction in FIG. 3 ga direction) and lateral direction (gb direction in FIG. 3). That is, the imaging systems attached to both ends of the C-arm 81 move in the longitudinal direction or the lateral direction in response to the slide movement along the xy plane of the operation stick 111a, and the moving speed thereof is the speed of the operation stick 111a. It is determined based on the moving distance. FIG. 8 shows the relationship between the moving direction and rotating direction of the operation stick 111a and the moving direction of the imaging system and the top plate 91.

  When the imaging system and the top 91 reach a position suitable for X-ray imaging of the subject 150, the operator presses the trigger switch 111b provided on the operation stick 111a again, and the trigger signal is displayed. The positions and directions of the imaging system and the top plate 91 are determined by stopping various moving mechanism units and rotating mechanism units provided in the holding device 8 and the bed unit 9 based on the above.

  In FIG. 6, only the operation devices necessary for the operation of the holding device 8 and the bed unit 9 are shown, but the operation console 11 displays, for example, on the monitor of the display unit 7 in addition to the operation devices described above. Operation devices such as a menu selection lever for selecting a menu and a moving image reproduction lever for reproducing / stopping a moving image are provided.

  Returning to FIG. 1 again, the system control unit 12 includes a CPU and a storage circuit (not shown), and movement information and rotation information of the operation stick 111a supplied from the operation console 11 are temporarily stored in the storage circuit. The CPU controls the mechanism driving unit 10 based on the movement information and the rotation information and the trigger signal supplied from the trigger switch 111b, and mounts the imaging system attached to the holding device 8 on the top plate 91. A suitable position and direction of the placed subject 150 are set. Further, the system control unit 12 controls the X-ray imaging unit 1, the image data generation unit 6, and the display unit 7 based on preset imaging conditions, and displays image data obtained by X-ray imaging for the subject 150. Displayed on part 7.

(Modification)
Next, a modification of the present embodiment will be described with reference to FIG. The X-ray diagnostic apparatus 200 in this modification includes an overhead traveling type holding device 8a in addition to the floor-standing type holding device 8 described in the above-described embodiment. That is, the X-ray diagnostic apparatus 200 of the biplane system capable of performing X-ray imaging from two directions at the same time as shown in FIG. An X-ray generator 2 having a first imaging system having a generator 2 and an X-ray detector 3 and a second imaging system having an X-ray generator 2a and an X-ray detector 3a. And the X-ray detection part 3 is attached to the edge part of the C arm 81 provided in the floor-standing type holding device 8 as already shown in FIG.

  On the other hand, the X-ray generation unit 2a and the X-ray detection unit 3a constituting the second imaging system include an overhead traveling type holding device 8a capable of sliding in the longitudinal direction and the lateral direction along the overhead traveling rail 86a. It is attached to the end of the Ω arm 81a provided.

  The above-described holding device 8a has an arm holder 82a that rotates the Ω arm 81a to which the second imaging system is attached about the z axis and further slides around the subject. X-ray imaging in two different directions of the subject by using a combination of the first imaging system provided in the floor-standing holding device 8 and the second imaging system provided in the overhead traveling holding device 8a. Can be performed simultaneously.

  Note that the image data generation unit 6, the display unit 7, the mechanism drive unit 10, the operation console 11, and the system control unit 12 (none of which are shown) included in the X-ray diagnostic apparatus 200 are the same as those in the above-described embodiment. Detailed description is omitted.

  Selection of the holding devices 81 and 81a when setting the X-ray imaging direction is performed by the floor-standing type selection button 114 and the overhead traveling type selection button 115 of the operation console 11 shown in FIG. When the expression selection button 114 is selected, the second imaging system attached to the Ω arm 81a is moved.

  For example, when the operation stick 111a provided on the operation console 11 is rotated in the γ direction in FIG. 7C and the trigger switch 111b is pressed while the overhead traveling holding device 8a is selected, the Ω arm 81a is When the arm holder 82a is rotated about the z axis and the operation stick 111a is slid in the y direction or the x direction in FIG. 7D and the trigger switch 111b is pressed down, the Ω arm 81a is It moves in the longitudinal direction or the lateral direction along the traveling rail 86a.

  That is, the second imaging system attached to both ends of the Ω arm 81a slides in the longitudinal direction or the lateral direction in response to the movement along the xy plane of the operation stick 111a, and the z of the operation stick 111a. Corresponding to the rotation about the axis, the arm holder 82a is rotated about the z axis.

  According to the above-described embodiments of the present invention and modifications thereof, X-ray imaging is performed by moving an imaging system attached to a floor-standing type or ceiling-traveling type holding device or a top plate provided on a bed part. At this time, the operation stick provided on the operation console is moved in a direction corresponding to the moving direction of the imaging system and the bed part, so that the imaging system and the top plate can be accurately and easily moved to a position suitable for X-ray imaging. it can.

  In particular, in the above-described X-ray diagnostic apparatus having a holding device provided with a large number of rotation shafts, the imaging system can be moved by providing a function that allows the operation stick of the operation console to slide horizontally. It is possible to efficiently move to a position suitable for X-ray imaging of the subject without depending on.

  In addition, since the movement direction and rotation direction of the operation stick are associated with the movement direction and rotation direction of the imaging system and the top board, the operability of the imaging system and the top board in the operation console is dramatically improved. The risk of moving / turning these in an unexpected direction can be greatly reduced.

  Furthermore, since the main movement operation and rotation operation with respect to the imaging system and the top plate can be performed by one operation stick, the number of operation devices can be reduced. Therefore, all operations performed by the operation console are simplified, and the operation console can be downsized.

  As mentioned above, although the Example of this invention and its modification were described, this invention is not limited to the above-mentioned Example and its modification, It can change and implement further. For example, in the above-described embodiments and modifications thereof, the X-ray diagnostic apparatus having the floor-standing type holding device 8 and the overhead traveling type holding device 8a for the purpose of circulatory organ diagnosis has been described. It may be an X-ray diagnostic apparatus having the holding device.

  In the above-described embodiment and its modification, the case has been described in which the imaging system is moved in the longitudinal direction or the lateral direction by sliding the operation stick 111a along the xy plane. The top plate 91 of the bed unit 9 may be moved in the longitudinal direction or the lateral direction.

  Furthermore, the moving direction of the imaging system and the top plate 91 is not limited to the longitudinal direction or the lateral direction, and can be moved in any direction.

  On the other hand, in the above-described modification, the case where the second imaging system is attached to both ends of the Ω arm has been described, but the second imaging system is provided to both ends of the C arm of the overhead traveling holding device 8a. May be attached.

1 is a block diagram showing the overall configuration of an X-ray diagnostic apparatus according to an embodiment of the present invention. The block diagram which shows the specific structure of the X-ray imaging part with which the X-ray diagnostic apparatus of the Example is provided. The figure for demonstrating the floor-standing holding | maintenance apparatus and bed part with which the X-ray diagnostic apparatus of the Example is provided. The figure which shows the specific example of the mechanism drive part which supplies a drive signal with respect to the moving mechanism part and rotation mechanism part which were provided in the holding | maintenance apparatus and bed part of the Example, and these mechanism parts. The figure which shows the operation console attached to the bed part of the Example. The figure which shows the specific example of the operation console of the Example, and the operation stick which this operation console has. The figure which shows the rotation direction and movement direction of the operation stick in the Example. The figure for demonstrating operation | movement of the holding | maintenance apparatus and bed part with respect to rotation / movement of the operation stick in the Example. The figure which shows the X-ray diagnostic apparatus in the modification of the Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... X-ray imaging part 2, 2a ... X-ray generation part 3, 3a ... X-ray detection part 4 ... Projection data generation part 5 ... High voltage generation part 6 ... Image data generation part 7 ... Display part 8, 8a ... Holding device 81 ... C arm 81a ... Ω arm 82, 82a ... arm holder 83 ... arm column 84 ... floor turning arm 86a ... ceiling traveling rail 801 ... slide mechanism unit 802 ... holder rotating mechanism unit 803 ... post rotating mechanism unit 804 ... floor Rotating arm turning mechanism 805 ... Imaging system moving mechanism 806 ... Imaging system turning mechanism 9 ... Sleeper 91 ... Top plate (table)
901 ... Vertical movement mechanism 902 ... Horizontal movement mechanism 10 ... Mechanism drive unit 101 ... Holding device mechanism drive unit 102 ... Bed unit mechanism drive unit 103 ... Mechanism drive control unit 11 ... Operation console 111 ... Operation stick unit 111a ... Operation stick 111b ... Trigger switch 111c ... Movement / rotation detection unit 12 ... System control unit 100, 200 ... X-ray diagnostic apparatus

Claims (9)

In an X-ray diagnostic apparatus for performing X-ray imaging by moving or rotating an imaging system having an X-ray generation unit and an X-ray detection unit and a top plate on which a subject is placed,
A holding device having a mechanism for holding the imaging system and moving or rotating the imaging system in a desired direction;
An operation console provided with an operation device for operating movement or rotation of the imaging system;
A mechanism driving means for driving the mechanism unit provided in the holding device based on movement information of the operation device;
The holding apparatus moves or rotates the imaging system in a direction corresponding to a moving direction or a rotating direction of the operation device based on a driving signal supplied from the mechanism driving unit. apparatus.   The X-ray diagnostic apparatus according to claim 1, wherein the holding device moves or rotates the imaging system in the same direction as a movement direction or a rotation direction of the operation device.   The holding device moves the imaging system in a longitudinal direction or a lateral direction of a subject by a driving signal supplied by the mechanism driving unit based on movement information of the operation device that slides in a horizontal direction. The X-ray diagnostic apparatus according to Item 1.   The X-ray diagnostic apparatus according to claim 3, wherein the moving speed of the imaging system is determined based on a moving amount or a moving distance of the operation device. In an X-ray diagnostic apparatus for performing X-ray imaging by moving or rotating an imaging system having an X-ray generation unit and an X-ray detection unit and a top plate on which a subject is placed,
A bed part having a mechanism part for moving the top plate in a desired direction;
An operation console provided with an operation device for operating the movement of the top plate;
A mechanism driving means for driving the mechanism portion provided in the bed portion based on movement information of the operation device;
The X-ray diagnostic apparatus, wherein the bed unit moves the top plate in a direction corresponding to a moving direction of the operation device based on a driving signal supplied from the mechanism driving unit.   The X-ray diagnostic apparatus according to claim 5, wherein the couch unit moves the top board in the same direction as a movement direction of the operation device.   The couch unit moves the top plate in a longitudinal direction or a lateral direction of a subject by a driving signal supplied by the mechanism driving unit based on movement information of the operation device that slides in a horizontal direction. Item 6. The X-ray diagnostic apparatus according to Item 5.   The X-ray diagnostic apparatus according to claim 7, wherein the moving speed of the top plate is determined based on a moving amount or a moving distance of the operation device. A movement / rotation detecting means for detecting movement and rotation of the operation device;
The X-ray diagnostic apparatus according to claim 1, wherein the mechanism driving unit drives the mechanism unit based on a detection result of the movement / rotation detection unit.

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