JP2005342341A - X-ray radiographic stand for medical examination - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an X-ray radiographic stand which allows the lower part of a wheelchair not to abut on a supporter in the case of photographing the chest region, etc., of a subject seated in a wheelchair. <P>SOLUTION: A holding part 3 between the supporter 1 of the X-ray radiographic stand and a bucky device 2C is expansible in a horizontal direction. when the "wheelchair" or "seated position", etc., is selected from the photographing systems of an X-ray generator, the holding part 3 is extended in the horizontal direction in association with the selection, so as to project the bucky device 2C forward. A gap between the supporter 1 and the bucky device 2C is enlarged, so that the knees of the subject K and the lower part of the wheelchair 11 do not abut on the supporter 1. Accordingly, it is made to be possible to rapidly set an appropriate photographing state where the chest region of the subject K tightly adheres onto the bucky device 2C. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention generally relates to a diagnostic X-ray imaging stand for X-ray fluoroscopic imaging of a standing subject or the like.

As shown in FIG. 4, most conventional X-ray imaging stands are configured to take an image of the chest and the like in a posture where the subject K is in a position where the subject K is in close contact with the imaging unit 2. The imaging unit 2 is installed on a support 1 of an X-ray imaging stand via a holding unit 3. In order to effectively use an X-ray imaging room generally composed of small rooms, the holding unit 3 is made as short as possible so that the length of the imaging unit 2 protruding to the front surface is minimized. Also needed. Further, for alignment between the imaging unit 2 and the chest of the subject K, etc., only adjustment by a vertical drive mechanism (not shown) provided on the support column 1 is performed, and in the horizontal direction, the position where the subject K stands. Adjustments are made. Therefore, the horizontal length of the holding portion 3 is fixed (see, for example, Patent Document 1).
JP 2000-201913 A

  When photographing the chest of the subject K sitting on the wheelchair 11 with this conventional X-ray imaging stand, the lower part of the wheelchair 11 or the leg of the subject K is placed on the column 1 as shown in FIG. Are in contact or collide with each other, so that a gap is formed between the imaging unit 2 and the chest. Therefore, when the subject K is a person who uses the wheelchair 11, the subject K must take an unreasonable posture so that the subject K is in close contact with the imaging unit 2 as shown in FIG. It is also difficult to set appropriate shooting conditions. The present invention provides a diagnostic X-ray imaging stand that solves such problems.

  In order to solve the above-described problems, the X-ray imaging stand of the present invention is configured such that a holding portion that connects the support column and the imaging unit is extendable in the horizontal direction. Accordingly, by selecting, for example, “wheelchair” or “sitting position” among the imaging methods of the X-ray generator, the holding unit 3 extends in the horizontal direction in conjunction with this, and the imaging unit protrudes forward. .

  When imaging a subject sitting in a wheelchair, the holding unit of the imaging stand automatically extends by selecting a setting such as “wheelchair” or “sitting position” as the imaging method of the X-ray generator. As a result, the chest of the subject can be easily brought into close contact with the front surface of the imaging unit without interference between the support and the wheelchair or the support and the subject's leg, and rapid and appropriate X-ray imaging is possible.

  Further, when the imaging technique is not set to “wheelchair” or “sitting position”, the holding unit of the imaging unit is contracted, so that the space in the X-ray imaging room can be used effectively.

  The X-ray imaging stand of the present invention is configured such that a holding portion that connects a support column and an imaging unit can be automatically expanded and contracted in a horizontal direction according to an imaging technique.

In the diagnostic X-ray imaging stand of the present invention, as an imaging unit, when performing imaging using an X-ray film, it is common to use a Bucky device as a dark box for storing a film cassette, Most widely used. In the embodiment using this bucky device, its configuration is as shown in FIG.
FIG. 1 is a side view of an embodiment of the present invention, in which a bucky device 2 </ b> C that performs X-ray fluoroscopy while closely attaching a chest of a subject K is held via a holding unit 3. The bucky device 2 </ b> C is installed on the support column 1 of the X-ray imaging stand via the holding unit 3. It is held so as to be movable up and down by a vertical movement mechanism (not shown). FIG. 1A shows a state where the holding portion 3 is contracted, and FIG. 1B shows an extended state.

FIG. 2A is a plan view showing the relationship between the support column 1, the bucky device 2 </ b> C, and the holding unit 3, and FIG. 2B is a cross-sectional view of the holding unit 3. An example in which a rack and pinion is used as a mechanism for expanding and contracting the holding unit 3 is shown. That is, the fixed frame 4 is attached to the support column 1, and the movable frame 5 to which the bucky device 2C is attached is engaged with the fixed frame 4 so as to be slidable (extendable) in the horizontal direction. A rail 6 is laid on the fixed frame 4 as shown in FIG. 2B, and a bearing 7 is fixed to the moving frame 5 so as to sandwich the rail 6. Accordingly, the moving frame 5 and the bucky device 2C can slide in the horizontal direction in conjunction with the sliding of the bearing 7.
A motor 8 is installed inside the fixed frame 4, and a gear 9 attached to the output shaft of the motor 8 meshes with a rack 10 laid on the moving frame 5. Therefore, when the gear 9 is rotated by the motor 8, the moving frame 5 on the rack 10 side slides in the horizontal direction. Explaining with the plan view (A) of the holding unit 3, the moving frame 5 outside the fixed frame 4 slides in the horizontal direction and the length of the holding unit 3 expands and contracts. The interval is adjusted. The distance between the column 1 and the bucky device 2C can be controlled by the rotation of the motor 8, and the horizontal position of the bucky device 2C can be selected by an electric signal.

  In X-ray fluoroscopy, which is usually used frequently, chest imaging of a standing subject K is common, and the space in the X-ray imaging room is narrowed by projecting the Bucky device 2C from the column 1. In order to prevent the bucky device 2C from protruding in the state where the holding portion 3 is most contracted, the space in the photographing room can be used effectively.

  As shown in FIG. 1B, when X-ray imaging is performed with the subject K sitting on the wheelchair 11, “wheelchair” or “sitting position” is selected from the selection items of the imaging technique. Then, the holding part 3 expands, the gap between the bucky device 2C and the support column 1 increases, and the subject K sitting on the wheelchair 11 is in the correct posture and the chest is in close contact with the bucky device 2C to set an appropriate photographing state. Can be obtained. This operation is automatically driven and controlled as described above, and an appropriate photographing state can be set promptly.

  Embodiment 2 is an example in which a flat panel detector (hereinafter referred to as an FPD device) 2D capable of outputting an X-ray fluoroscopic image recently used in place of an X-ray film as digital data is used as an imaging unit. . Although this embodiment is shown in FIG. 3, the holding unit 3 is the same as that of the first embodiment, and detailed description thereof is omitted. This is an examination X-ray imaging stand that can obtain an appropriate imaging state for the subject K sitting on the wheelchair 11 by moving the position of the FPD device 2D back and forth in the horizontal direction.

  The features of the diagnostic X-ray imaging stand provided by the present invention are as described above in detail, but the invention is not limited to the above and illustrated examples, and modifications can be given. For example, in addition to the rack and pinion type as the horizontal expansion and contraction drive mechanism of the holding unit 3, it is also possible to use an air cylinder type capable of quieter and smoother drive or a screw feed drive mechanism using a ball screw. It is. Furthermore, it is also possible to manually drive the telescopic drive mechanism.

  It can be used for an X-ray imaging apparatus for a subject standing or using a wheelchair.

It is a figure which shows the structure of the diagnostic X-ray imaging stand of this invention. It is a figure which shows the structure of the holding | maintenance part which is the principal part of this invention. It is a figure which shows the imaging | photography state of the wheelchair subject of the diagnostic X-ray imaging stand of this invention. It is a figure which shows the imaging | photography state of the wheelchair subject in the conventional X-ray imaging stand for a diagnosis. It is a figure which shows the imaging | photography state of the wheelchair subject in the conventional X-ray imaging stand for a diagnosis. It is explanatory drawing of the imaging | photography state of the wheelchair subject in the conventional X-ray imaging stand for a diagnosis.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Imaging unit 2C Bucky device 2D FPD device 3 Holding part 4 Fixed frame 5 Moving frame 6 Rail 7 Bearing 8 Motor 9 Gear 10 Rack 11 Wheelchair K Subject

Claims (3)

  In an imaging stand for imaging a subject, the imaging unit for imaging a subject's X-ray fluoroscopic image is suspended from a support through a holder and movable up and down. An X-ray imaging stand characterized in that means for adjusting the length of the holding portion between them is provided, and the horizontal interval between the support column and the imaging unit can be changed.   2. The X-ray imaging stand according to claim 1, wherein the imaging unit is constituted by a Bucky device.   2. The X-ray imaging stand according to claim 1, wherein the imaging unit is composed of a flat panel detector.

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