JP5917935B2 - Mobile X-ray device - Google Patents

Description

  The present invention relates to a mobile X-ray apparatus for making a round trip in a hospital and taking images at each round place, and more particularly to the structure of the mobile X-ray apparatus with improved convenience of operation.

  A mobile X-ray apparatus that is currently popular is an X-ray generation apparatus that generates X-rays, an X-ray control apparatus, and the like mounted on a moving carriage. In order to position the X-ray generation apparatus at an arbitrary imaging position, , A holding device that supports the X-ray generator so as to move up and down along the column, a rotation mechanism of the column, and the like. The X-ray generator is connected to a cable for wiring to an external power source or an internal power source provided in the device. In such a mobile X-ray apparatus, the X-ray generator can be moved up and down along the support column and the support column can be rotated to perform X-ray imaging of a patient who is lying on a bed or the like. .

  However, in such a mobile X-ray device, since the X-ray generator is connected to the power source by the cable, the cable is entangled with the column when the X-ray generator is rotated by rotating the column. Depending on the amount of rotation, the cable may be pulled, causing cable breakage. In order to avoid this problem, in recent devices, the one in which an angle limit is provided for the rotation of the support column has become the mainstream (Patent Document 1). In this apparatus, a structure such as a stopper is provided at a position of a predetermined rotation angle of the support column, and the support column is not rotated beyond that angle to prevent the cable from being entangled with the support column.

Japanese Patent No. 4011422

  In an apparatus in which an angle restriction is provided for the rotation of the X-ray generator (post), it is necessary to return the X-ray generator to the original standby position after the X-ray imaging is completed, and the direction opposite to the direction rotated so far It is necessary to rotate the X-ray generator. However, when returning the X-ray generator to the standby position, the X-ray generator is rotated in the opposite direction to the original rotation direction, and it is noticed that it has been mistaken after rotating to the rotation limit position. There are things that don't always happen.

  According to the present invention, in a mobile X-ray apparatus having a rotation mechanism for rotating the X-ray generator around a support, an operator can grasp the rotational position of the X-ray generator, thereby preventing malfunction and operation. It is an object of the present invention to provide a mobile X-ray apparatus that can improve the convenience of the user.

  In order to solve the above-mentioned problem, the mobile X-ray apparatus of the present invention is characterized by comprising display means for displaying an index in a direction for returning the X-ray generation apparatus after imaging to the standby position.

Specifically, the mobile X-ray apparatus of the present invention includes an X-ray generation unit, a control unit for controlling the X-ray generation unit, a carriage equipped with a power source for the X-ray generation unit, and the X-ray generation unit. And supporting means rotatably supported in both forward and reverse directions with respect to the carriage, and a cable connecting the X-ray generator and the power source, and displaying direction information regarding the rotation direction of the support means. Display means for displaying, and display control means for changing direction information displayed by the display means in accordance with the rotation direction of the support means.
The display means includes a disk-like member that is rotatably supported with respect to the carriage, includes a mark indicating direction information on a surface, and has a gear groove formed on a side surface, and the display control means includes the support means. A pair of gear pieces that can mesh with the gear grooves of the disk-shaped member, and the pair of gear pieces includes a rotation center of the support means and a rotation center of the disk-shaped member at a standby position of the support means. Located on both sides of a straight line connecting

  The mobile X-ray apparatus of the present invention is provided with means for displaying information relating to the rotation direction according to the rotation direction of the support means for supporting the X-ray generation unit, so that the operator can detect the X-ray generation unit after imaging. It is possible to return to the standby position without any malfunction based on the information displayed on the display means at any rotational position. The direction information displayed by the display means can be an arrow or a character indicating the direction in which the support means is returned to the standby position, and can be operated very easily.

The perspective view which shows the whole outline | summary of the mobile X-ray apparatus to which this invention is applied. Top view of the X-ray apparatus of FIG. The perspective view which shows the rotation mechanism part of 1st embodiment. The top view which shows the rotation limiting mechanism of the rotation mechanism part of FIG. The top view which shows the display mechanism of the rotation direction of the rotation mechanism part of FIG. The figure which shows the principal part of the rotation mechanism part of FIG. Diagram for explaining the operation of the rotation limiting mechanism The figure explaining operation | movement of a rotation direction display mechanism The top view which shows the rotation direction display mechanism of 2nd embodiment. The figure explaining operation of a second embodiment

  A mobile X-ray apparatus according to the present invention includes an X-ray generation unit such as an X-ray tube, a control unit that controls on / off of the X-ray generation unit, tube current, and the like, a power source for the X-ray generation unit, and an X-ray generation unit And a cable for connecting the X-ray generator and the power source. The control unit and power supply are mounted on the carriage. The supporting means is supported so as to be rotatable in both forward and reverse directions with respect to the carriage. The mobile X-ray apparatus according to the present invention further includes display means for displaying direction information regarding the rotation direction of the support means, and display control means for changing the direction information displayed by the display means in accordance with the rotation direction of the support means. Prepare.

<First embodiment>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an overall outline of a mobile X-ray apparatus (hereinafter also simply referred to as an X-ray apparatus) to which the present invention is applied, and FIG. 2 is a top view of the X-ray apparatus of FIG.

  The mobile X-ray apparatus 1 mainly includes an X-ray generation unit 10 including an X-ray tube, a control unit 20 that controls driving of the X-ray generation unit 10, a housing 30 that houses the control unit 20, an X-ray A support mechanism unit 40 that supports the generating unit 10, a support column 50 that supports the support mechanism unit 40 so as to be slidable in the vertical direction, a housing 30 and a support column 50 that store the control unit 20, and a moving wheel are provided. And a cable 80 for connecting the X-ray generator 10 to a power source. The power source may be an external power source or an internal power source. In the case of an internal power source, the power source is housed in the housing 30. In this specification, a direction perpendicular to the floor surface on which the carriage 60 is placed is referred to as an up-down direction, a direction along the wheel axis of the carriage 60 is referred to as a lateral direction, and a moving direction of the carriage is referred to as a front-rear direction.

  The X-ray generation unit 10 includes an X-ray tube unit 11 and a diaphragm 12 fixed to an X-ray window (not shown) of the X-ray tube unit 11. In FIG. 1, the X-ray tube portion 11 has a cylindrical shape that is long in the horizontal direction, and both sides of the X-ray tube portion 11 are pivotally supported by arms 41 and connected to the support mechanism portion 40. The aperture 12 is for limiting the X-rays generated from the X-ray tube unit 11 to a desired imaging range, and is provided with an input unit 13 such as a dial for adjusting the aperture range and the like.

  The control unit 20 controls the operation of the X-ray generation unit 10, and is an operation in which switches such as power on / off of the X-ray apparatus and input buttons for the operator to set conditions necessary for imaging are arranged. A panel 21 is provided.

  The housing 30 includes a top surface 31 on which the operation panel 21 is formed, a front and rear cover 32, two side plates 33, and a handle 34 used by an operator when moving the X-ray apparatus 1. Prepare. Lower portions of the front and rear covers 32 and the side plates 33 are fixed to the carriage 60 and are integrated with the carriage 60. The upper end of the side plate 33 is a convex portion protruding from the end surface of the carriage 60, and a handle 34 is provided to connect the two side plate 33 to the convex portion. Further, in the space between the top surface 31 and the diaphragm 12, the side surface of the side plate 33, and the concave portion provided in the cover 32 of the housing 30, an FPD or a member necessary for photographing is placed or stored. It is used for space to do.

  The support mechanism unit 40 includes an arm 41 that supports the X-ray tube unit 11 described above, and a slider 42 to which one end of the arm 41 is coupled. The slider 42 includes one or a plurality of link members, one end is fixed to the arm 41, and the other end is supported so as to be movable up and down with respect to the column 50. The support column 50 is fixed to a disk-shaped rotating body 71 that is pivotally supported by the carriage 60, and can rotate with respect to the carriage 60 when the rotating body 71 rotates. The range of rotation of the column 50 is limited by a stopper (not shown) from the initial position where the X-ray tube unit 11 is on the top surface 31 of the housing 30 (the position shown in FIG. 1) to a position rotated by a predetermined amount of rotation. Yes. The structure of the rotating part 70 including the rotating body 71 and the stopper will be described later.

  Due to the structure of these support mechanism portions 40, the X-ray tube portion 11 fixed to the arm 41, together with the aperture 12 fixed thereto, can move up and down with respect to the column 50, and can be rotated at an arbitrary angle from the initial position. By changing the connecting angle between the arm 41 and the slider (link member) or the connecting angle between the link members in the state (for example, the position indicated by the solid line or the dotted line in FIG. 2), the distance from the column 50 and the squeezing 12 The direction of can be changed freely.

  A fixed wheel 61 whose mounting direction is fixed and a free wheel 62 whose traveling direction is variable are mounted on the carriage 60 and a power source (not shown) for supplying a high voltage to the X-ray tube unit 11. Is installed. The cable 80 that connects the power source and the X-ray tube unit 11 is exposed to the outside of the support column 50 and the slider 42 with a slack that allows the X-ray tube unit 11 to move in the rotational direction and the vertical direction. Are arranged.

  Next, the structure of the rotation mechanism 70 of the support column 50 will be further described with reference to FIGS. FIG. 3 is a perspective view showing the rotation mechanism unit 70. 4 is a top view showing a rotation limiting mechanism of the rotating body 71, and FIG. 5 is a top view showing a display mechanism in the rotation direction. In order to make each mechanism easy to understand, the display mechanism portion is shown by a dotted line in FIG. In FIG. 5, the rotation limiting mechanism is omitted. FIG. 6 is a diagram illustrating a main part of the rotation mechanism unit.

  As shown in FIG. 3, the rotating mechanism unit 70 is fixed to the rotating body 71 to which the support 50 is fixed, the rotating body support portion 72 having a cylindrical bearing portion 72 a, and the rotating support portion 72. A pair of stoppers 731 and 732 for limiting the rotation of 71 within a predetermined rotation range, a rotation display unit 74 pivotally supported by the rotation support unit 72, and a pair that is fixed to the upper surface of the rotating body 71 and rotates the rotation display unit 74. Gear pieces 751 and 752.

  An opening corresponding to the outer shape of a part of the rotating body 71 and the rotation display unit 74 is formed on the upper surface of the cart 60 so that the part of the rotating body 71 and the rotation display unit 74 can be seen from the outside of the apparatus. It has become. Other structures are covered by the upper surface of the carriage 60.

  In the illustrated embodiment, the rotation support portion 72 has a shape in which a circular opening is provided at the center of a rectangular plate member, and a cylindrical portion (bearing portion 72a) is connected to the opening around the opening. The rotating shaft of the column 50 is supported by a bearing on the inner surface. The plate member is fixed to the carriage 60 with screws or the like.

  The rotating body 71 has a disk shape, and the rotation shaft 51 of the support column 50 passes through a hole formed in the center, and rotates integrally with the support column 50. The position where the X-ray tube portion 11 supported by the support 50 is directly above the upper panel 31 of the housing 30 is the standby position or initial position of the rotary body 71. The rotary body 71 is clockwise (forward direction) from this standby position. ) And counterclockwise (reverse direction).

  As shown in FIG. 4, a stopper (bolt) 77 that prevents rotation of the rotating body 71 by engaging with stoppers 731 and 732 is provided near the periphery of the lower surface of the rotating body 71. In this embodiment, the rotation range of the rotating body 71 is an angle smaller than 360 degrees, for example, 325 degrees in both directions, and corresponding to the rotation in both directions, the stoppers 731 and 732 for the forward direction and the reverse direction are There are two places each. When the rotation range is 325 degrees, the positions of the stoppers 731 and 732 are provided on a straight line having an angle of ± 35 degrees with respect to a straight line L connecting the center of the rotating body 71 and the center of the rotation display unit 74 at the standby position. .

  Since the forward-direction and reverse-direction stoppers 731 and 732 have the same structure, the structure will be described below with reference to FIG. The stopper 73 includes a substantially rectangular parallelepiped fixing member 73a and a cam 73b fixed to the fixing member 73a so as to be swingable. The swing surface (the surface to which the swing direction belongs) of the cam 73b is parallel to the rotation surface of the rotating body 71.

  The fixing member 73a is fixed to the rotating body support 72 by screws or the like. The fixing member 73a is formed with a substantially triangular notch 73c that allows the cam 73b to swing, and the cam 73a is accommodated in the notch 73c. As shown in the top view of FIG. 4, the cam 73 a has a shape (73 d) in which a center of one side (referred to as a front surface) is cut out when viewed from above, and one of two side surfaces adjacent to the front surface. In a state where the side surface is in contact with one inner wall surface of the notch 73c of the fixing member 73a, the other side surface is in a position where the rotation locus of the bolt 77 is blocked. When the other of the two side surfaces of the cam 73b is in contact with the other inner wall surface of the notch 73c, the one side surface is in a position where the rotation locus of the bolt 77 is blocked. With such a structure of the stopper 73, it is possible to limit the rotation range in the forward direction and the reverse direction and to allow free rotation within the rotation range.

  On the other hand, in the rotating mechanism shown in FIG. 5, the pair of gear pieces 751 and 752 fixed to the rotating body 71 rotate the rotation display section 74 as the rotating body 71 rotates, as shown in FIG. In addition, a gear is formed on the side surface. These gear pieces 751 and 752 are fixed on a line symmetric with respect to the straight line L, for example, on a line having an angle of ± 15 degrees from the straight line L. As shown in FIG. 6, the rotation display unit 74 is a disk-shaped member having a gear groove formed on a part of the side surface, and an arrow indicating the rotation direction is drawn on the upper surface. The gear groove 74a on the side surface of the rotation display unit 74 can mesh with the gear pieces 751 and 752 fixed to the rotating body 71, and meshes with any of the gear pieces 751 and 752 of the rotating rotating body 71, thereby rotating the display. The part 74 is rotated. The gear length of the gear groove and the gear piece 75 is set to a length for rotating the rotation display unit 74 by 90 degrees. Thereby, the rotation of the rotation display unit 74 due to the engagement with the gear pieces 751 and 752 is limited to ± 90 degrees.

  Next, the operation of the mobile X-ray apparatus of this embodiment, particularly the rotation operation of the rotating body (support) 71 will be described with reference to FIGS. FIG. 7 is a diagram showing the positional relationship between the rotating body 71 and the stopper 73, and FIG. 8 is a diagram showing the positional relationship between the rotating body 71 and the rotation display unit 74. The standby position is present, the left side is rotated counterclockwise, and the right side is rotated clockwise.

  First, the rotation limiting mechanism will be described with reference to FIG. When the rotating body 71 is at the non-rotating standby position (angle 0), the stopper (bolt) 77 is in the center with the left and right stoppers 731 and 732. The left and right stoppers 731 and 732 are arranged such that the front surface where the cutout portion 73d of the cam 73b is formed faces the bolt 77 side. When the rotating body 71 rotates counterclockwise and the bolt 77 hits the left stopper 731, that is, the forward stopper, the cam 73 b of the stopper 731 swings and the movement of the bolt 77 is not hindered. The rotating body 71 can be further rotated as it is. When the rotating body 71 further rotates to −325 degrees (left end view), the bolt 77 hits the cam of the right stopper 732. Since the left side surface of the cam of the stopper 732 is in contact with the inner wall surface of the notch of the stopper 732 at the initial position, the movement of the bolt 77 in contact with the cam to further rotate counterclockwise is stopped.

  When the rotating body 71 rotates clockwise, the cams of the rotating body 71 and the left and right stoppers are the same as in the counterclockwise direction except that the left and right are reversed, and the rotation of the rotating body 71 is at +325 degrees. Is stopped (far right figure).

  Next, the operation of the rotation display unit 74 accompanying the rotation of the rotating body 71 will be described with reference to FIG. First, as shown in the center diagram of FIG. 8, when the rotating body 71 is at a non-rotating standby position (angle 0), the arrow of the rotation display unit 74 is parallel to the straight line L and Pointing to the opposite side of the center. When the rotating body 71 rotates counterclockwise from the standby position and the gear piece 752 reaches the position of the rotation display portion 74 (left end view), the gear groove engages with the gear piece 752, and the further rotating body 71 The rotation display unit 74 is rotated by the rotation. The rotation display unit 74 rotates by an angle determined by the gear length, that is, 90 degrees by continuing the rotation of the rotating body 71. Thereafter, when the engagement between the gear groove and the gear piece 752 is released, the rotation display unit 74 stops rotating. By the rotation of the rotation display unit 74, an arrow drawn on the surface indicates a direction opposite to the rotation direction (right direction in the figure), and stops in this state. As described with reference to FIG. 7, the rotating body 71 can rotate until the bolt 77 contacts the cam of the reverse direction stopper 732, and can perform imaging by operating the X-ray apparatus at an arbitrary position. .

  The operator sees the arrow 74b of the rotation display unit 74 and shows the rotation unit 71, that is, the support column 50 and the X-ray tube unit 11 fixed thereto, no matter where the rotation unit 71 rotates within the limited rotation range. The direction to return to the standby position can be known.

  The same applies to the case where the rotating body 71 is rotated clockwise as shown in the right diagram of FIG. 8. When the gear piece 751 reaches the position of the rotation display portion 74 due to the rotation of the rotating body 71, the gear groove becomes a gear. The rotation display portion 74 is rotated counterclockwise by engaging with the piece 751 and the rotation of the rotating body 71 further, and the arrow 74b indicates the direction opposite to the rotating direction of the rotating body 71 (left direction in the figure). By the display by the arrow, the operator can know the direction in which the X-ray tube unit 11 is returned to the standby position. Even when the support column 50 is rotated clockwise or vice versa without returning to the standby position for each photographing, the rotating body 71 rotates in the reverse direction with respect to the rotation angle of 0 degree. The arrow 74b of the rotation display unit 74 is directed in the forward direction, and when rotating in the forward direction from 0 degrees, the arrow 74b is directed in the reverse direction, so avoid a malfunction when returning to the standby position. Can do.

  According to the present embodiment, a pair of gear pieces is provided on the rotating body 71 that rotates together with the support column 50, and a rotation display unit that rotates by the gear pieces and displays a direction opposite to the rotation direction of the rotating body 71 is provided. This facilitates the operation of returning the X-ray tube unit 11 to the standby position after imaging.

  In the above description, a combination of a stopper provided with a cam and a stopper (bolt) has been described as a forward / reverse bidirectional rotation control mechanism. However, the rotational control mechanism is not limited to the above embodiment, and is not limited to when rotating in the forward direction. Any structure may be employed as long as the stopper does not interfere with the forward stopper and the stopper does not interfere with the backward stopper during reverse rotation. As such a structure, for example, a positive-direction stopper and a reverse-direction stopper are provided at two positions on the side surface of the rotating body 71, for example, at ± 35 degrees, and corresponding to these stoppers. Provide stopper and reverse stopper. Then, the vertical position of the pair of the forward stopper and the stopper and the pair of the stopper for the backward direction and the stopper are made different from each other, or the stopper is passed along the height at which the stopper in the opposite direction passes through the stopper. For example, a structure in which a concave portion is provided is employed.

The main features of the mobile X-ray apparatus of the first embodiment are as follows.
The display means for displaying the direction indicator for returning the rotation of the X-ray generator is supported to be rotatable with respect to the carriage (60), has a mark indicating direction information on the surface, and has a gear groove formed on the side surface. The display control means comprises a pair of gear pieces (751, 752) that are provided on the support means (rotating body 71) and can mesh with the gear grooves of the disk-like member (74). The pair of gear pieces are located on both sides of a straight line connecting the rotation center of the support means and the rotation center of the disk-shaped member at the standby position of the support means. The pair of gear pieces rotates the disk-shaped member by meshing with the gear groove of the disk-shaped member, and changes the mark provided on the disk-shaped member.

  Both the gear piece and the gear groove of the disk-shaped member have a gear length that rotates the disk-shaped member (74) by 90 degrees. The support means includes a support column (50) that supports the X-ray generation unit so as to be slidable in the height direction of the X-ray apparatus, and a rotating body (71) that rotates the support column. It is arranged along the periphery.

  The direction information displayed by the display means includes either an arrow mark indicating the direction in which the support means is returned to the standby position, or characters indicating the return direction.

  A rotation limiting mechanism (77, 73) is provided to limit the rotation of the support in both forward and reverse directions to less than 360 degrees. A rotation body (71) that rotates integrally with the support column (50) is provided, and the rotation limiting mechanism is fixed to the pair of stoppers (731, 732) and the pair of stoppers so as to be swingable. A cam (73b) and a stopper member (77) fixed to the rotating body (71), and one of the cams of the pair of stoppers is in contact with the stopper member when the rotating body rotates in the positive direction. The other is prevented from rotating in the direction, and the other is in contact with the stopper member when the rotating body rotates in the reverse direction, thereby preventing the rotation in the reverse direction.

<Second embodiment>
The present embodiment is characterized in that the mechanism for displaying the direction in which the rotator 71 is returned is realized not by a mechanical mechanism but by using a sensor or the like that detects the amount of rotation of the rotator 71. Also in this embodiment, the configuration of the entire apparatus is the same as that of the X-ray apparatus shown in FIGS. 1 and 2, and the configuration other than the rotation direction display mechanism is the same as that of the first embodiment. The difference will be mainly described. In FIG. 9, the top view of the rotation mechanism part of this embodiment is shown.

  As in the first embodiment, the rotation mechanism unit of the present embodiment includes a rotating body 71 that rotates the column 50 that supports the X-ray generation unit 10 and a stopper 73 that limits the rotation to less than 360 degrees (see FIG. 3). ). The rotating body 71 is supported by a bearing (not shown) so as to be able to rotate in both forward and reverse directions on the rotation support portion 72, and the stopper 73 is predetermined with respect to the standby position (rotation angle 0) of the rotating body 71. It is arranged on the left and right with an angle of. The rotation limiting mechanism using the stopper 73 is the same as in the first embodiment.

  In the present embodiment, an opening 78 is formed in the vicinity of the periphery of the rotating body 71, and a pair of sensors 791 and 792 that detect the opening 78 are fixed to the rotation support portion 72. The opening 78 is positioned on a straight line L that passes through the center of the rotating body 71 and is parallel to the front-rear direction of the carriage, and the sensor 79 (791, 792) has a predetermined angle with respect to the straight line L. For example, it is installed at a position of ± 15 degrees. In this embodiment, the sensor 79 is an optical sensor. When the opening 78 passes through the position of the sensor 79, the optical sensor detects external light through the opening, and detects the passage of the opening 78.

  On the other hand, a rotation direction display unit 740 is provided in a place near the rotating body 71 and easy for the operator to check. The rotation direction display unit 740 includes, for example, a lamp 741 indicating the left direction and a lamp 742 indicating the right direction, and displays the rotation direction when one of the lamps illuminates. Switching of the lamp of the display unit 740 is performed by a signal from the sensor 79 as described in detail below.

  The rotation direction display function of the present embodiment in the above configuration will be described with reference to FIG. When the rotating body 71 rotates counterclockwise from the standby position shown in FIG. 9 and its opening 78 passes through the sensor 791, a signal from the sensor 791 is sent to the rotation direction display unit 740, thereby indicating the right direction. The lamp 742 is turned on. While the position of the opening 78 is at a position advanced counterclockwise from the sensor 791, the lighting of the lamp 742 continues. When the rotating body 71 rotates clockwise and the opening 78 passes through the sensor 791, the signal is sent to the rotation direction display unit 740, and the lamp 742 is turned off. That is, the lamp 742 is turned on in the odd-numbered passage of the opening 78, and the lamp 742 is turned off in the even-numbered passage.

  Similarly, when the rotating body 71 rotates clockwise from the standby position shown in FIG. 9 and its opening 78 passes through the sensor 792, a signal from the sensor 792 is sent to the rotation direction display unit 740, and thereby the left direction. A lamp 741 indicating “ON” is turned on. The lamp 741 is also turned on when the opening 78 is passed through the odd number of times, and is turned off when the opening is passed through the even number of times. Accordingly, the two lamps 741 and 742 are turned off when the opening 78 is almost returned to the standby position. However, when the opening 78 is rotated in the forward direction or the reverse direction, the lamp in the direction opposite to the rotation direction is turned on. . The operator can easily know the direction of returning the X-ray tube unit 11 after imaging to the standby position by confirming the lighting state of the lamp.

  As described above, the X-ray apparatus having the rotation direction display function using the sensor has been described as the second embodiment. However, as the sensor, not only the combination of the aperture and the optical sensor but also other optical sensors and magnetic It is also possible to employ a mechanical sensor, a micro switch, or the like. In addition, the display unit that switches the display using the sensor may display characters such as “right” and “left” instead of or in addition to the arrow. The position of the display unit can also be provided on the operation panel of the X-ray apparatus. It is also possible to add a means for notifying by sound.

  According to the present embodiment, the same effect as the first embodiment can be obtained, and the electrical display means is controlled by the signal from the sensor, so that the installation position of the display means has a degree of freedom, and the operator Rotation information (such as the direction to return the X-ray tube unit) can be displayed at an arbitrary position or a plurality of positions where it is easy to see.

The main features of the mobile X-ray apparatus of the second embodiment are as follows.
The display control means includes first and second detection means (791, 792) for detecting the rotation of the support means, and the display means (740) according to the rotation direction detected by the first and second detection means. Switch the display.

  In addition, the same features as those of the mobile X-ray apparatus of the first embodiment can be provided. Specifically, the direction information displayed by the display means includes either an arrow mark indicating the direction in which the support means is returned to the standby position, or a character indicating the return direction, and 360 degrees of rotation in both forward and reverse directions. Providing a rotation limiting mechanism that limits the rotation to less than 1 degree.

  According to the present invention, a mobile X-ray apparatus with improved operability is provided. Thereby, the convenience of X-ray imaging in a hospital can be improved.

DESCRIPTION OF SYMBOLS 1 ... Mobile X-ray apparatus, 10 ... X-ray generation part, 11 ... X-ray tube part, 12 ... Diaphragm part, 20 ... Control part, 21 ... Operation panel, 30 ... Case, 40 ... Support mechanism part (support means), 50 ... Still (support means), 60 ... Carriage, 70 ... Rotation mechanism part, 71 ... Rotating body, 72 ... Rotary support part, 73 ... Stopper, 732 ... Cam, 74, 740 ... Rotation display part (display means), 75 ... Gear piece (display control means), 78 ... Opening, 79 ... sensor (detection means), 80 ... cable.

Claims (8)

An X-ray generator, a control unit for controlling the X-ray generator, and a carriage equipped with a power source for the X-ray generator, and the X-ray generator are supported and can be rotated in both forward and reverse directions with respect to the carriage In a mobile X-ray apparatus comprising a supported support means, and a cable connecting the X-ray generator and the power source,
Display means for displaying direction information relating to the rotation direction of the support means; and display control means for changing direction information displayed by the display means according to the rotation direction of the support means,
The display means is a disk-shaped member that is rotatably supported with respect to the carriage, has a mark indicating direction information on the surface, and has a gear groove formed on the side surface.
The display control means includes a pair of gear pieces that are provided in the support means and can mesh with a gear groove of the disk-shaped member, and the pair of gear pieces are arranged at the standby position of the support means. A movable X-ray apparatus, which is located on both sides of a straight line connecting a rotation center and a rotation center of the disk-shaped member . The mobile X-ray apparatus according to claim 1 ,
The pair of gear pieces rotates a disk-like member by meshing with a gear groove of the disk-like member to change a mark provided on the disk-like member. . The mobile X-ray device according to claim 1 or 2 ,
Both of the gear piece and the gear groove of the disk-shaped member have a gear length that is a length that rotates the disk-shaped member by 90 degrees. The mobile X-ray apparatus according to any one of claims 1 to 3 ,
The support means includes a support column that supports the X-ray generation unit so as to be slidable in the height direction of the X-ray apparatus, and a rotating body that rotates the support column, and the gear piece extends along the periphery of the rotating body. A mobile X-ray apparatus characterized by being arranged. The mobile X-ray apparatus according to claim 1,
The display control means includes first and second detection means for detecting rotation of the support means, and switches the display of the display means according to the rotation direction detected by the first and second detection means. A mobile X-ray apparatus characterized by that. A mobile X-ray apparatus according to any one of claims 1 to 5 ,
The moving type X-ray apparatus characterized in that the direction information displayed by the display means includes either an arrow mark indicating a direction for returning the support means to the standby position or a character indicating the return direction. The mobile X-ray device according to any one of claims 1 to 6 ,
A mobile X-ray apparatus comprising a rotation limiting mechanism that limits rotation of the support in both forward and reverse directions to less than 360 degrees. The mobile X-ray apparatus according to claim 7 ,
A rotating body that rotates integrally with the column,
The rotation limiting mechanism includes a pair of stoppers fixed to the carriage side, cams fixed to the pair of stoppers so as to be swingable, and a stopper member fixed to the rotating body,
One of the cams of the pair of stoppers contacts the stopper member when the rotating body rotates in the forward direction to prevent forward rotation, and the other stops the stopper when the rotating body rotates in the reverse direction. A mobile X-ray apparatus that is in contact with a member and prevents reverse rotation.

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