JP2016168065A - Moving type x-ray imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moving type X-ray imaging device enabling easy understanding of a dead angle caused by the device from a relation to a moving direction of the device, while having an extremely simple constitution.SOLUTION: An image of a region near an undersurface on the front in the moving direction of a carriage 15 is reflected by a mirror 41 and a mirror 42 successively, and a mirror image after reflection is reflected in the visual field direction of an operator for moving an X-ray imaging device by gripping an operation handle. Hereby, the operator can check easily the region near the undersurface on the front in the moving direction of the carriage 15.SELECTED DRAWING: Figure 5

Description

  The present invention relates to an X-ray imaging apparatus, and more particularly to a mobile X-ray imaging apparatus such as a round-trip imaging apparatus for performing imaging while visiting a hospital room.

  In such a mobile X-ray imaging apparatus for round trips, an X-ray tube and a collimator are disposed at the tip of an arm that can be moved up and down with respect to a column disposed on the carriage, and a motor provided on the carriage is provided. By driving, it is configured to move between hospital rooms electrically.

  In such a mobile X-ray imaging apparatus, since the carriage and the support block the front field of view during the movement of the apparatus, careful attention is required to move the apparatus safely. For this reason, an X-ray apparatus for round trips has been proposed in which a camera capable of photographing the front of the carriage is attached to the column and the display device is fixed to the carriage by a display device support bracket. According to this round-trip X-ray apparatus, an image in front of the apparatus can be displayed on the display unit in addition to the X-ray image. Therefore, the apparatus can be safely moved by checking the image in front of the apparatus. (See Patent Document 1).

  Further, in such a mobile X-ray imaging apparatus, the area of the lower surface in front of the carriage with respect to the moving direction becomes a blind spot in particular, and a collision accident tends to occur when the apparatus moves. For this reason, a movable X-ray apparatus has also been proposed in which a reflecting mirror is provided as an auxiliary to the imaging means, and the lower surface in the moving direction of the carriage can be confirmed by this reflecting mirror (see Patent Document 2).

JP 2007-313252 A JP 2009-183368 A

  As described in Patent Document 1, in the case of adopting a configuration in which an image captured by a camera is displayed on a display device, it is necessary to attach the camera and the display device to the mobile X-ray imaging device, which is expensive. There is a problem of becoming. In particular, it is necessary to prepare a large number of cameras in order to photograph a large number of areas such as the lower surface in front of the moving direction of the carriage and the front of the arm, which further increases the cost of the apparatus.

  On the other hand, as described in Patent Document 1, when a configuration in which the lower surface in front of the carriage is confirmed using a reflecting mirror is employed, a camera or a display device is not necessary, and an inexpensive mirror can be used. As a result, the blind spot area can be confirmed while preventing the cost of the apparatus from increasing. However, since the reflected image by the mirror is reversed upside down and left and right due to mirror inversion, the moving direction of the apparatus is opposite to the moving direction of the mirror image. For this reason, the operator cannot intuitively understand the relationship between the mirror image and the moving state of the apparatus. Therefore, for example, when trying to move the device in a direction that avoids a collision, the device may be erroneously moved in a direction that promotes the collision.

  The present invention has been made in order to solve the above-mentioned problems, and has a very simple configuration, and a mobile X-ray imaging apparatus capable of easily understanding the blind spot by the apparatus in relation to the moving direction of the apparatus. The purpose is to provide.

  The invention described in claim 1 is a mobile X-ray imaging apparatus comprising a carriage, an X-ray tube, and a support mechanism that is disposed on the carriage and supports the X-ray tube. It is provided with a blind spot area visualizing mechanism that is provided with a mirror and that is visible to the operator by inverting an image of a blind spot when the operator moves the apparatus even number of times.

  According to a second aspect of the present invention, in the first aspect of the invention, the blind spot region visualizing mechanism can visually recognize a region of a lower surface in front of the carriage in the moving direction.

  According to a third aspect of the present invention, in the first aspect of the present invention, the support mechanism can be moved up and down with respect to the support column while supporting the support column installed on the carriage and the X-ray tube. And the blind spot area visualizing mechanism makes it possible to visually recognize an area in the moving direction of the carriage with respect to the support column.

  According to a fourth aspect of the present invention, in the first aspect of the present invention, the support mechanism can be moved up and down with respect to the column while supporting the column and the X-ray tube that are erected on the carriage. An even number of mirrors in the blind spot area visual recognition mechanism is supported by the support column.

  According to a fifth aspect of the present invention, there is provided the adjusting mechanism according to any one of the first to fourth aspects, wherein the adjustment mechanism is used to change the angle or height position of the even number of mirrors in the blind spot area visual recognition mechanism. .

  According to the first aspect of the present invention, it is possible to easily confirm the blind spot when the apparatus is moved, despite the simple configuration using the mirror. At this time, since the movement direction of the apparatus corresponds to the movement direction of the mirror image, the operator can move the apparatus safely and easily.

  According to the second aspect of the present invention, it is possible to confirm the lower surface in the forward direction of movement of the carriage that is likely to cause a collision when the apparatus is moved.

  According to invention of Claim 3, it becomes possible to confirm the area | region ahead of the moving direction of the trolley | bogie used as a blind spot with a support | pillar.

  According to the fourth aspect of the present invention, it is possible to arrange the mirror image at a position that is easy for the operator to visually recognize.

  According to the fifth aspect of the present invention, the position of the mirror image can be changed in accordance with the height of the operator.

1 is a side view of a mobile X-ray imaging apparatus according to a first embodiment of the present invention. 1 is a perspective view of a mobile X-ray imaging apparatus according to a first embodiment of the present invention. It is a schematic diagram which shows the mounting state to the support | pillar 14 of the mirrors 41 and 43. FIG. It is a cross-sectional schematic diagram which shows the fixed state of the guide member 71 and the support plate 75. FIG. It is a side view which shows the state which visually recognizes the lower surface ahead of the moving direction of the trolley | bogie 15 with the mobile X-ray imaging apparatus which concerns on 1st Embodiment of this invention. It is a side view which shows the state which visually recognizes the lower surface ahead of the moving direction of the trolley | bogie 15 with the mobile X-ray imaging apparatus which concerns on 2nd Embodiment of this invention. It is a top view which shows the principal part of the mobile X-ray imaging apparatus which concerns on 3rd Embodiment of this invention. It is a side view which shows the state which visually recognizes the lower surface ahead of the moving direction of the trolley | bogie 15, and the front of the support | pillar 14 with the mobile X-ray imaging apparatus which concerns on 4th Embodiment of this invention. It is a front view of the mobile X-ray imaging apparatus which concerns on 4th Embodiment of this invention. It is a top view which shows the principal part of the mobile X-ray imaging apparatus which concerns on 4th Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view of a mobile X-ray imaging apparatus according to the present invention. FIG. 2 is a perspective view of the mobile X-ray imaging apparatus according to the present invention. In FIGS. 1 and 2, a guide member 71 and a support plate 75, which will be described later, are not shown.

  This mobile X-ray imaging apparatus is called a round-trip imaging apparatus for performing imaging while visiting a hospital room. The mobile X-ray imaging apparatus can be moved up and down with respect to the column 14 disposed on the carriage 15. The arm 13 arranged in a state, the X-ray tube 11 arranged at the tip of the arm 13, the collimator 12 arranged below the X-ray tube 11, and the X-ray tube 11 An X-ray detector 16 for detecting X-rays that have passed through the examiner and a storage unit 17 for storing the X-ray detector 16 are provided. In addition, this mobile X-ray imaging apparatus includes a pair of left and right front wheels 21 that are direction changing wheels, a pair of left and right rear wheels 22 that are driving wheels, and an operation for operating the traveling direction of the carriage 15. And a handle 19.

  The arm 13 is a fixed position that is a position where the arm 13 is to be disposed when the carriage 15 indicated by the solid line in FIG. 1 is moved, a raised position that is raised from the fixed position indicated by the phantom line in FIG. It can move between the photographing positions shown in FIG. In a state where the arm 13 is in the fixed position, the lower surface of the arm 13 abuts on a fixed portion 18 called an arm catch. In this state, the pin 23 disposed on the lower surface of the arm 13 is accommodated in a hole (not shown) formed in the fixing portion 18 and the arm 13 is fixed.

  A pair of dials 33 for opening and closing the collimator leaf and a button 34 for turning on a collimator lamp used for confirming the X-ray irradiation field are disposed on the front surface of the collimator 12. Further, the collimator 12 is provided with a handle 31 used when the X-ray tube 11 and the collimator 12 are moved. The handle 31 is provided with a pair of release buttons 32 for releasing the fixation of the arm 13 by a fixing mechanism that prohibits the raising and lowering and turning of the arm 13.

  This mobile X-ray imaging apparatus is used to perform imaging while visiting a hospital room. When imaging is performed in a hospital room, the arm 13 is disposed at the imaging position shown in FIG. On the other hand, when the mobile X-ray imaging apparatus is moved, the arm 13 is disposed at a fixed position indicated by a solid line in FIG. When the apparatus is moved, mirrors 41 and 42 attached to the support column 14 are used. Note that the pair of mirrors 41 and 42 constituting the mating mirror is disposed on each side of the support column 14 in a total of two pairs.

  FIG. 3 is a schematic diagram showing a state in which the mirrors 41 and 43 are attached to the column 14. FIG. 4 is a schematic cross-sectional view showing a fixed state of the guide member 71 and the support plate 75.

  A guide member 71 having a groove portion 72 facing in the vertical direction is fixed to the support column 14. A support plate 75 fixed with the pair of mirrors 41 and 42 facing each other is fixed to the guide member 71 by using a pair of thumb screws 73 and 74 and a nut 76. . Of the pair of thumb screws 73, 74, the upper thumb screw 73 passes through a round hole formed in the support plate 75. On the other hand, the lower wing screw 74 of the pair of wing screws 73 and 74 passes through the long hole 77. The elongated hole 77 has an arc shape centered on a round hole through which the thumbscrew 73 passes.

  Therefore, in a state where the pair of thumb screws 73 and 74 are loosened, the support plate 75 can be moved up and down as shown by an arrow A in FIG. 3 and swings around the thumb screw 73 as shown by an arrow B. It becomes possible to move. As the support plate 75 moves up and down and swings, the angles and height positions of the mirrors 41 and 42 fixed to the support plate 75 are changed.

  FIG. 5 is a side view showing a state where the lower surface in the moving direction of the carriage 15 is visually recognized by the mobile X-ray imaging apparatus according to the first embodiment of the present invention. In this figure, only the main part of the mobile X-ray imaging apparatus is shown.

  When moving the mobile X-ray imaging apparatus, the operator performs an operation of holding the operation handle 19 shown in FIGS. 1 and 2, and the mobile X-ray imaging apparatus moves in the left direction shown in FIG. . When the mobile X-ray imaging apparatus is moved, a region near the lower surface in the moving direction of the carriage 15 becomes a blind spot by the carriage 15, and the vicinity of the lower surface in the moving direction of the carriage 15 easily collides with other articles.

  However, in this mobile X-ray imaging apparatus, the image of the area near the lower surface in front of the moving direction of the carriage 15 that is a blind spot for the operator who moves the apparatus is sequentially reflected by the mirror 41 and the mirror 42, and the mirror after reflection The image is projected in the direction of the visual field of the operator holding the operation handle 19 and moving the X-ray imaging apparatus. As a result, the operator can easily check the area near the lower surface of the front side of the carriage 15 in the moving direction. At this time, since the image of the area near the lower surface in front of the movement direction of the carriage 15 is reflected an even number of times by the pair of mirrors 41 and 42 constituting the mating mirror, the movement direction of the carriage 15 and the movement direction of the mirror image And correspond. This allows the operator to move the device safely and easily.

  Depending on conditions such as the height of the operator, there is a possibility that the mirror image reflected by the pair of mirrors 41 and 42 constituting the mirror will not be directed to the vicinity of the operator's line of sight. In such a case, the pair of butterfly screws 73 and 74 shown in FIGS. 3 and 4 are loosened so that the support plate 75 can be moved up and down as shown by arrow A in FIG. It is swung around the screw 73. As a result, the mirror image can be adjusted so as to coincide with the operator's line of sight.

  Next, another embodiment of the present invention will be described. FIG. 6 is a side view showing a state in which the lower surface in the moving direction of the carriage 15 is visually recognized by the mobile X-ray imaging apparatus according to the second embodiment of the present invention. In this figure, only the main part of the mobile X-ray imaging apparatus is shown.

  In the mobile X-ray imaging apparatus according to the first embodiment described above, the pair of mirrors 41 and 42 are supported by the support column 14 via the support plate 75, whereas in the second embodiment, , One mirror 44 is supported by the support column 14, and the other mirror 43 is supported by the carriage 15.

  Also in the mobile X-ray imaging apparatus according to the second embodiment, the image of the area near the lower surface in the moving direction of the carriage 15 that is a blind spot is sequentially reflected by the mirror 43 and the mirror 44, and the mirror image after reflection is The image is projected in the direction of the visual field of the operator holding the operation handle 19 and moving the X-ray imaging apparatus. As a result, the operator can easily check the area near the lower surface of the front side of the carriage 15 in the moving direction. At this time, since the image of the area near the lower surface in front of the movement direction of the carriage 15 is reflected an even number of times by the pair of mirrors 43 and 44 that constitute the mirror, as in the case of the first embodiment, the carriage 15 Therefore, the operator can move the apparatus safely and easily.

  Next, still another embodiment of the present invention will be described. FIG. 7 is a plan view showing the main part of a mobile X-ray imaging apparatus according to the third embodiment of the present invention.

  In the mobile X-ray imaging apparatus according to the first embodiment described above, the area on the lower front side in the moving direction of the carriage 15 can be visually recognized by the blind spot area visualizing mechanism provided with the pair of mirrors 41 and 42. In the mobile X-ray imaging apparatus according to the embodiment, the area of the lower surface in the moving direction of the carriage 15 can be visually recognized by a blind spot area visualizing mechanism including a pair of mirrors 43 and 44. In contrast, in the mobile X-ray imaging apparatus according to the third embodiment, a blind spot is detected by the support column 14 by a blind spot area recognition mechanism having a pair of mirrors 45 and 47 and a pair of mirrors 46 and 48. A region ahead of the carriage 15 in the moving direction can be visually recognized with respect to the support column 14.

  In the mobile X-ray imaging apparatus according to the third embodiment, the image in the area on the right side of the support column 14 as viewed from the operator is reflected by the mirror 48 and then by the mirror 46, and the mirror image after reflection. Is projected in the direction of the visual field of the operator holding the operation handle 19 and moving the X-ray imaging apparatus. Similarly, the image of the left front area of the support column 14 as viewed from the operator is reflected by the mirror 47 and then by the mirror 45, and the reflected mirror image grips the operation handle 19 to It is projected in the direction of the visual field of the moving operator.

  For this reason, in the mobile X-ray imaging apparatus according to the third embodiment, the operator visually moves the mirror 45 and the mirror 46 to move the carriage 15 with respect to the column 14 that is blinded by the column 14. It becomes possible to easily confirm the image of the area ahead in the direction. At this time, since the image in the area in front of the support column 14 is reflected an even number of times by the pair of mirrors 45 and 47 and the mirrors 46 and 48 constituting the mating mirror, the moving direction of the carriage 15 and the moving direction of the mirror image And correspond. This allows the operator to move the device safely and easily.

  Next, still another embodiment of the present invention will be described. FIG. 8 is a side view showing a state in which the lower surface of the carriage 15 in the moving direction and the front of the column 14 are visually recognized by the mobile X-ray imaging apparatus according to the fourth embodiment of the present invention. FIG. 9 is a front view of a mobile X-ray imaging apparatus according to the fourth embodiment of the present invention. Further, FIG. 10 is a plan view showing a main part of a mobile X-ray imaging apparatus according to the fourth embodiment of the present invention.

  In the mobile X-ray imaging apparatus according to the fourth embodiment, the area of the lower surface in front of the carriage 15 in the movement direction and the area in the movement direction of the carriage 15 with respect to the pillar 14 that is a blind spot by the pillar 14 Both areas are visible.

  In the mobile X-ray imaging apparatus according to the fourth embodiment, a pair of mirrors 55 and 56 are attached to the column 14. Also, above the arm 13, a pair of mirrors 51 and 53 whose mirror surfaces are opposite to each other are supported by a support member 61, and a pair of mirrors 52 whose mirror surfaces are opposite to each other by a support member 62, 54 is supported. Further, below the arm 13, the mirror 49 is supported by the support member 63, and the mirror 50 is supported by the support member 64.

  In the mobile X-ray imaging apparatus according to the fourth embodiment, the image of the area near the lower surface in the moving direction on the right side of the carriage 15 that becomes a blind spot is sequentially reflected by the mirror 50 and the mirror 52, and the mirror after reflection The image is projected in the direction of the visual field of the operator holding the operation handle 19 and moving the X-ray imaging apparatus. Further, the image of the area near the lower surface in front of the moving direction on the left side of the carriage 15 that becomes a blind spot is sequentially reflected by the mirror 49 and the mirror 51, and the mirror image after the reflection grips the operation handle 19 to hold the X-ray imaging apparatus. It is projected in the direction of the visual field of the moving operator. Further, the image of the area on the right front side of the column 14 is reflected by the mirror 54 and then by the mirror 56, and the mirror image after the reflection grips the operation handle 19 and moves the X-ray imaging apparatus. It is projected in the direction of the visual field. Similarly, the image of the left front area of the column 14 is reflected by the mirror 53 and then by the mirror 55, and the mirror image after the reflection grips the operation handle 19 to move the X-ray imaging apparatus. Projected in the direction of the visual field of the operator.

  In the mobile X-ray imaging apparatus according to the fourth embodiment, the image of the area near the lower surface in front of the moving direction of the carriage 15 that becomes a blind spot and the pillar 14 that becomes a blind spot by the pillar 14 are It is possible to easily confirm both the image in the area ahead of the moving direction. And also in this 4th Embodiment, since it can visually recognize the image reflected by the pair of mirrors which comprise a mating mirror each time, the moving direction of the carriage 15 and the moving direction of the mirror image correspond to each other. Become. This allows the operator to move the device safely and easily.

  In each of the above-described embodiments, as a blind spot area visualizing mechanism that enables an operator to visually recognize an image of an area that becomes a blind spot when the operator moves the apparatus, a pair of mirrors that constitute a mirror is provided. Although the case where it used was demonstrated, the blind spot area visual recognition mechanism which provided an even number of mirrors, such as 4 sheets, 6 sheets, etc., and made the image of the area which becomes a blind spot visible to an operator by inverting an image even number of times May be adopted.

  In the above-described embodiment, since only the mirrors 41 to 56 can be used to visually recognize the area that becomes the blind spot of the device, it is not necessary to use a camera or a display device, and the cost of the device is reduced. Is possible. However, you may make it use the camera and display apparatus which were described in patent document 1 and patent document 2 mentioned above together.

  Further, in the above-described embodiment, the case where the present invention is applied to a so-called round-trip imaging apparatus for performing imaging while visiting a hospital room is described. However, an X-ray tube is used for a movable carriage having wheels. The present invention may be applied to other mobile X-ray imaging apparatuses having a configuration that supports the above-mentioned.

11 X-ray tube 12 Collimator 13 Arm 14 Post 15 Car 16 X-ray detector 19 Operation handle 21 Front wheel 22 Rear wheel 41-56 Mirror 61-64 Support member 71 Guide plate 72 Groove 73 Butterfly screw 74 Butterfly screw 75 Support plate 77 Long Hole

Claims (5)

A mobile X-ray imaging apparatus comprising a carriage, an X-ray tube, and a support mechanism disposed on the carriage and supporting the X-ray tube,
It is provided with an even number of mirrors, and a blind spot area visualizing mechanism that enables the operator to visually recognize the image of the area that becomes a blind spot when the operator moves the apparatus by inverting the even number of times. Mobile X-ray imaging device. The mobile X-ray apparatus according to claim 1,
The blind spot region visualizing mechanism is a mobile X-ray imaging apparatus that allows a region of the lower surface in the moving direction of the carriage to be visible. The mobile X-ray apparatus according to claim 1,
The support mechanism includes a support column erected on the carriage, and an arm that can be raised and lowered with respect to the support column in a state of supporting the X-ray tube.
The blind spot area visualizing mechanism is a mobile X-ray imaging apparatus that makes it possible to visually recognize an area in the moving direction of the carriage with respect to the support column. The mobile X-ray apparatus according to claim 1,
The support mechanism includes a support column erected on the carriage, and an arm that can be raised and lowered with respect to the support column in a state of supporting the X-ray tube.
An even number of mirrors in the blind spot area visual recognition mechanism is a movable X-ray imaging apparatus supported by the support column. The mobile X-ray imaging apparatus according to any one of claims 1 to 4,
A mobile X-ray imaging apparatus comprising an adjustment mechanism for changing the angle or height position of an even number of mirrors in the blind spot area visual recognition mechanism.

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