JP2008113702A - Radiography equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide radiography equipment with a grip bar which enables a hold of even a subject such as an old person or a disabled person at a relaxed imaging posture with no pains. <P>SOLUTION: The subject is irradiated with X rays from an X-ray tube device 1 to detect the X rays passing through the subject with an X-ray detector 2 positioned facing the X-ray tube device 1. The X-ray detector 2 is supported with a post 3 and the subject is made to stand on an imaging table installed on a floor surface which has a lifting means capable of making the X-ray detector 2 rise or lower vertically and held onto the grip bar 4 to be kept at the imaging posture of the subject. Each one end of sets of a plurality of ropes 5, each the same in number, is fixed separately at both ends of the grip bar 4 and the other ends of the ropes 5 are supported on a rope support part 6 while the subject is supported being held onto the grip bar fixed at a position that allows the subject to be maintained at the relaxed imaging posture with a winding up/down mechanism of the ropes 5 and a rotating mechanism of the grip bar. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an X-ray imaging apparatus, and more particularly to an X-ray imaging apparatus provided with a grip bar for holding a subject at an imaging position.

Chest radiography, which is the most common examination among radiographs, is an imaging that diagnoses organs such as the lungs, heart, and mediastinum between the left and right lungs.
An X-ray imaging apparatus that performs this imaging is called a general imaging apparatus, and has been widely used in the past, and a subject stands on a standing imaging stand dedicated to the chest standing on the floor (hereinafter referred to as `` standing ''). In this case, the chest part, which is the imaging region, is positioned and imaged on the detection surface of the X-ray detector provided on the standing imaging table.

  In chest imaging performed in this way, chest front imaging, chest side imaging, etc. are performed, and in order to keep the subject in a posture corresponding to the imaging purpose and to prevent image quality deterioration due to the movement of the subject The non-patent document 1 includes two types of grip bars that are means for supporting the subject during the imaging period.

That is, when photographing the front of the chest, a front-grip grip bar is provided on both sides of the front of the standing-up imaging table so that the X-ray detector is wrapped with both hands. At the time of photographing other than the above, a grip bar (hereinafter referred to as a side shooting grip bar) that holds the subject's body and holds the subject's body is provided above the standing photographing table.
These grip bars are provided with a mechanism that moves in the vertical direction corresponding to the height of the subject.
Ishiyaku Shuppan Co., Ltd. “Radiologic Science Course Vol.13, Radiation Diagnostic Equipment Engineering 2nd Edition, Chapter 2 X-ray General Imaging System, Fig. 2-3, p16” January 20, 2006

In the side imaging, the subject must face sideways, align the side of the chest of the subject with the detection surface of the X-ray detector on the standing imaging platform, and perform imaging in this state.
During this photographing, in order to maintain the posture, the subject is held by the side photographing gripping rod set at a position corresponding to the height of the subject.

As described above, it is difficult to maintain the side-viewing posture by holding the side-viewing gripping rod sideways in the case of a normal person or a subject with a handicap. May be painful or unable to take the above-mentioned position.
This is because the conventional side photographing grip rod disclosed in Non-Patent Document 1 can be set only in the vertical direction and cannot be set in the horizontal direction or the oblique direction.

  Therefore, the present invention has been made in view of the above problems, and X-ray photography provided with a gripping rod for holding an elderly person or a handicapped subject in an easy photographing position without causing pain. An object is to provide an apparatus.

  In order to achieve the above object, the X-ray imaging apparatus of the present invention is configured as follows. That is, an X-ray source that irradiates the subject with X-rays, an X-ray detector that is disposed opposite to the X-ray source and detects the transmitted X-rays of the subject, and supports and supports the X-ray detector An imaging table installed on the floor surface having lifting means capable of moving the X-ray detector up and down, and a gripping rod for holding the subject's imaging posture by gripping the subject. In the X-ray imaging apparatus, further supports a grip bar position variable means for changing the grip bar to any position in the vertical, left and right, and rotational directions with respect to the horizontal direction of the floor, and the grip bar and the grip bar position variable means And gripping rod support means.

  The grip bar position varying means fixes one end of a plurality of the same number of ropes to both ends of the grip bar, supports the other end of the rope, and includes a hoisting and lowering mechanism for the rope. A grip rod length varying means for varying the length of the grip rod, a grip rod rotating means for varying the rotation direction of the grip rod, and the grip rod by means of the grip rod length varying means and the grip rod rotating means. An operation for setting the length and the angle and switching the operation of the grip rod fixing means for fixing the grip rod at the set position, the grip rod length varying means, the grip rod rotating means, and the grip rod fixing means. Switching means.

The grip rod, the grip rod position varying means, and the grip rod support means may be supported by any of the following means (1) and (2).
(1) Attach to and support the shooting table column.
(2) Support with ceiling suspension support means suspended from the ceiling.
Further, the X-ray detector is provided with grips for frontal imaging at both ends.

According to the present invention, since the grip bar is configured to be variable to any position in the vertical, left and right, and rotational directions with respect to the horizontal direction of the floor surface, the subject can grasp the position by gripping the grip bar in the most comfortable position. It can be held, and X-ray imaging can be performed with peace of mind without suffering pain even for elderly and handicapped subjects.
In addition, since the gripper can be moved by the subject himself and set at the imaging position, the time until the examination can be reduced, and the examination efficiency can be greatly improved.
Further, when the grip bar is not used, it can be easily retracted upward, so that the grip bar does not come into contact with the subject or the operator, and it is safe and preparation for photographing can be performed efficiently.

Hereinafter, preferred embodiments of the X-ray imaging apparatus of the present invention will be described in detail with reference to the accompanying drawings.
Note that components having the same function are denoted by the same reference symbols throughout the drawings for describing the embodiments of the present invention, and the repetitive description thereof will be omitted.

  FIG. 1 is a schematic diagram showing the configuration of an X-ray imaging apparatus using a standing imaging stand according to the present invention. This X-ray imaging device detects X-rays transmitted through the subject with an X-ray tube device (X-ray source) 1 (supported by a support device not shown) that irradiates the subject with X-rays The X-ray detector 2 and the X-ray detector 2 are supported so as to be movable up and down, and the subject is placed in an upright position by closely contacting the imaging region of the subject with the detection surface of the X-ray detector 2 A support column 3 provided with an imaging stand for holding in this state, a grip bar 4 for holding the subject to hold the positioned body after the subject is positioned at the imaging site, and the grip bar A rope 5 that can adjust 4 to a position where a subject can easily grasp, and a mechanism (grip bar position varying means) that supports the rope 5 and changes the length and angle (vertical and horizontal and rotational directions) of the rope. A grip support device for supporting a grip rod device comprising the rope support portion 6 provided, the grip rod 4 supported by the support post 3, the rope 5, and the rope support portion 6. And parts (handlebar support means) 7, and the rope 5 vertically, and a changeover switch (operation switch means) 8 for switching the lateral and rotational directions of the variable fixing of the rope 5.

  The grip bar 4 is supported by six ropes 5a, 5b, 5c, 5d, 5e, and 5f, and 5a, 5b, 5c and 5d, 5e, and 5f are attached to the left and right ends of the grip bar 4, respectively. Three ropes 5 are fixed each.

The rope 5 is supported by a rope support portion 6, and the rope position variable mechanism (to be described later) is used to change each rope 5 up and down, left and right, and the direction of rotation (the direction of rotation with respect to the horizontal axis surface of the grip bar 4). The grip bar 4 is adjusted to a position where the subject is most easily gripped, and the rope 4 is fixed to the adjusted position.
The rope 4 is adjusted and fixed by switching the changeover switch 8.

  Note that the grip rod for frontal imaging is provided on both sides of the X-ray detector 2 as in the prior art, and is omitted in the embodiment of FIG.

Next, fixation of the grip bar 3 will be described with reference to FIG.
FIG. 2 is a view of FIG. 1 as viewed from above. The rope 5 is arranged at a position where the rope 5a, 5b, 5c and the ropes 5d, 5f, 5e form a triangle with respect to the end of the grip bar 4. By fixing these ropes, the degree of freedom in the two-dimensional direction of the plane space parallel to the floor surface is limited, and the subject can be held.
Regarding the vertical direction, since the weight of the subject is applied to the grip bar 4 in the vertical direction of the floor surface, the grip bar 4 is fixed and does not move.
In addition, since the three ropes are supported at the three points of the rope support portion 6 at both ends of the grip bar 4, respectively, it is possible to move left and right.

  FIG. 3 is a diagram showing an arrangement relationship of the grip bar 4, the rope support unit 6, and the grip bar device support unit 7 when the grip bar 4 moves to a position away from the X-ray detector 2. FIG. It is the figure which looked at from the upper part.

In FIG. 4, when the grip rod 4 is moved to the left as shown in FIG. 3, the six ropes 5 (5a to 5f) have different lengths, and the rope 5 is fixed to the length. Thus, the grip rod 4 can be held in a predetermined position.
Similarly, although illustration is omitted, when the grip bar 4 is moved in the right direction, the six ropes 5 (5a to 5f) have different lengths, and the rope 5 is fixed to the length. Thus, the grip rod 4 can be held at a predetermined position.

  Thus, the length of the rope 4 is provided with a rope winding mechanism described later for each of the six ropes, and the length of the six ropes corresponds to the amount by which the subject moves the grip bar 4 left and right. Is variably controlled, thereby allowing the grip bar 4 to move left and right.

When the grip bar 4 is not used, the grip bar 4 does not get in the way when the grip bar 4 is retracted upward, so that shooting preparation, front shooting, etc. can be performed efficiently.
Fig. 5 shows the arrangement of the gripping rod 4 when the gripping rod 4 is not used. By switching the switch 8 that switches between the movement and fixing of the gripping rod 4 to the fixed side, the gripping rod 4 moves to the top. And evacuated.

  In this case, the gripping rod is moved to the retracted position so that a slight tension is applied to the rope 5 and automatically returns to the position when the subject releases his hand from the gripping rod 4. This is the same state as when the subject is moved to a convenient position by his / her own force, and is provided with a mechanism for returning to the original position when the hand is released.

FIG. 6 is a view showing the arrangement of the grip rod 4, the rope 5, the rope support portion 6 and the grip rod device support portion 7 as viewed from above in FIG.
The grip bar 4 is held in the center of the rope support 6 and is not disturbed when not used by setting it at a high position.

The retracting position of the grip bar 4 is set to a position that is higher than the subject's head and can be reached if the hand is extended, but since the height of the subject's back is actually different, In such cases, consideration is given to handling any subject by the operator pulling it down by hand and giving it to the subject.
And when using it, the operator can switch the switch 8 from the fixed side to the variable side to make the rope 5 variable so that it can be used immediately, and the inspection speed can be increased. Become.

FIG. 7 shows an example of a rope winding mechanism that changes and fixes the length of the rope 5, and shows a case of one of the ropes 5.
In FIG. 7, the rope winding mechanism includes a pulley 9 having a rope winding function, a shaft 10 of the pulley, a support 11 that supports the pulley 9, a pulley 12 having a smaller diameter than the pulley 9, and the pulley 12. And the electromagnetic brake 14 that stops the operation of the rope winding mechanism and fixes the rope 5 in a desired position, and winds and lowers the rope 5 supported by the rope support 6. Perform (grip bar length variable means).

  The rope 5 is pulled at an appropriate tension by a pulley 9 having a rope winding function having a winding tension. By switching the changeover switch 8 to the fixed side, the electromagnetic brake 14 is connected to an electromagnetic brake circuit (not shown). A fragile current flows and a brake is applied to hold the grip rod 4 (grip rod fixing means).

The rope 5 can be wound up by providing the pulley 12 with a spring function, the weight of the grip bar 4 is light, and the length of the rope 5 only needs to be about 1.5 meters.
A similar rope winding mechanism is also provided for the other five ropes, and the six lengths are variably controlled in accordance with the amount by which the subject moves the grip rod 4 to the left and right.

Next, a mechanism for changing the rotation direction of the grip bar 4 will be described with reference to FIG.
FIG. 8 is a top view of a rotation mechanism for changing the rotation direction of the gripping rod 5, and the rotation mechanism includes a rotation drive roller 15 for rotating the rope support portion 5, and the rotation drive roller 15 The shaft 16 includes a driving roller 17 having a diameter smaller than that of the rotational driving roller 15 connected to the shaft 16, and a motor 18 connected to the driving roller 17 to rotate the driving roller 17. (Grip rod rotating means).

  The rope support section 6 has a cylindrical shape and can be rotated in either the left or right direction by the rotation driving roller 15. The driving force of the motor 18 is supported by the rope from the driving roller 17 via the rotation driving roller 15. The grip bar 5 is transmitted to the part 6 and can be set to an arbitrary angle.

  FIG. 9 is an example of a switch (operation switching means) 8 that switches between movement and fixation of the grip bar 4.8a is a switch that enables the grip bar 4 to move, and 8b rotates the rope support 6 counterclockwise. The switch 8b rotates the grip rod 4 counterclockwise, and the switch 8b rotates the grip rod 4 clockwise by rotating the rope support 6 clockwise.

The surgeon sets an optimal angle using the switch 8b or 8c according to the direction of the body of the subject, and then moves the gripping rod 3 to the subject's favorite place by the switch 8a.
FIGS. 10 and 11 show examples in the case of rotating counterclockwise. As shown in FIG. 11, the grip rod 4 is rotated about 30 degrees.

  With the X-ray imaging apparatus having such a configuration, for example, at the time of chest side imaging, the subject stands in front of the X-ray detector 2 and positions the chest side imaging according to the operator's instructions. Next, the operator can change the position of the rope 5 by the switch 8, and the subject moves the grip bar 4 to a place suitable for holding the body by gripping the grip bar 4, and the grip bar 4 The operator fixes the rope 5 with the switch 7 when the position of is fixed. In this way, since the grip rod 4 is fixed to the subject, the subject grips the grip rod 4 at the fixed position and performs photographing while holding the photographing body position.

  In the above embodiment, although not shown in the drawings, a front shooting grip rod is provided, and in the case of front shooting, the gripping rod 4 is attached to the front shooting grip rod. By rotating the rotating mechanism in the direction at the time of front photographing, front photographing and side photographing can be performed with only the side photographing gripping rod.

Further, in this embodiment, the rope support portion 6 is fixed to the support column 3 by the grip bar device support portion 7, but it can also be fixed to the ceiling of the examination room independently of the support column.
Furthermore, the movement of the grip rod 4 to the left and right is performed by adjusting the length of the rope 5, but the present invention is not limited to this, for example, the rope support portion 6 and the support portion itself. A means for moving the right and left may be provided.
With this configuration, the range of movement to the left and right is widened, and it is possible to handle shooting other than front shooting and side shooting.

  Furthermore, although the X-ray imaging apparatus provided with the standing imaging stand for imaging in the standing position has been described, the present invention is not limited to this, for example, when imaging with the fluoroscopic imaging stand standing Needless to say, it can also be used as a gripping rod when shooting in a supine position or other postures or when shooting on a supine stand.

  By configuring as described above, the grip bar 4 can be arranged in the height and orientation of the subject's preference. This makes it possible for an elderly person or a subject having a handicap to perform X-ray imaging with peace of mind, to obtain a good image with no movement, and to eliminate re-imaging due to failure.

1 is a schematic diagram of the configuration of an X-ray imaging apparatus using a standing imaging stand according to the present invention. The figure which looked at FIG. 1 for demonstrating fixation of a grip rod from the upper part. The figure which shows the arrangement | positioning relationship of a grip bar, a rope support part, and a grip bar apparatus support part when a grip bar moves to the position which leaves | separates from an X-ray detector. The figure which looked at FIG. 3 from the upper part. The figure which shows arrangement | positioning of this grip rod when not using a grip rod. The figure which shows arrangement | positioning of the grip bar, rope, rope support part, and grip bar apparatus support part which looked at FIG. 5 from the upper part. The figure which shows the rope winding mechanism which performs variable and fixation of the length of a rope. The figure which looked at the rotation mechanism for changing the rotation direction of a grip rod from the upper part. The figure which shows the example of the switch which switches the movement and fixation of a grip bar. Example when the gripping bar is rotated counterclockwise. The figure seen from the upper part at the time of rotating a grip rod counterclockwise.

Explanation of symbols

  1 X-ray tube device, 2 X-ray detector, 3 posts, 4 grip rod, 5 rope, 6 rope support, 7 grip rod device support, 8 changeover switch, 9 pulley with rope take-up function, 10 axis, 11 Prop, 12 Pulley 11, 13 Prop, 14 Electromagnetic brake, 15 Rotation drive roller, 16 axes, 17 Drive roller, 18 Motor

Claims (5)

  An X-ray source for irradiating the subject with X-rays, an X-ray detector arranged to face the X-ray source and detecting the transmitted X-rays of the subject, and the X-ray detector supporting the X-ray detector An X-ray comprising an imaging table installed on a floor surface having lifting means capable of moving the detector up and down, and a gripping rod for holding the subject's imaging posture by gripping the subject. In the photographing apparatus, further, a grip bar position variable means for changing the grip bar to any position in the vertical, left and right, and rotational directions with respect to the horizontal direction of the floor surface, and a grip that supports the grip bar and the grip bar position variable means. An X-ray imaging apparatus comprising a rod support means.   The grip bar position varying means fixes one end of a plurality of the same number of ropes to both ends of the grip bar, supports the other end of the rope, and includes a hoisting and lowering mechanism for the rope. A grip rod length varying means for varying the length of the grip rod, a grip rod rotating means for varying the rotation direction of the grip rod, and the grip rod by means of the grip rod length varying means and the grip rod rotating means. Set the length and angle, and switch the operation to switch the operation of the grip rod fixing means for fixing the grip rod at the set position, the grip rod length varying means, the grip rod rotating means, and the grip rod fixing means. The X-ray imaging apparatus according to claim 1, further comprising: means.   The X-ray imaging apparatus according to claim 1, wherein the grip bar, the grip bar position changing unit, and the grip bar support unit are attached to a column of the imaging table.   The X-ray imaging apparatus according to claim 1, wherein the grip bar, the grip bar position varying unit, and the grip bar support unit are supported by a ceiling suspension support unit that is suspended from a ceiling.   5. The X-ray imaging apparatus according to claim 1, further comprising a front imaging gripping rod at both ends of the X-ray detector. 6.

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