JP2005021233A - X-ray apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide X-ray apparatus preventing a subject from feeling cold even if the subject's skin corresponding to a portion to be imaged touches the surface of the apparatus. <P>SOLUTION: A Bucky X-ray device 1 is provided with a heating sheet 3 on the surface on its X-ray incident side and a control circuit 3c provided on the outside constantly adjusts the temperature of the heating sheet 3 to a temperature comfortable for the subject even if the subject's skin touches thereto. The Bucky X-ray device 1 is equipped with a film cassette, the height of the Bucky X-ray device 1 is vertically adjusted along a guide rail 2a of a stand 2 so as to be set to the imaging portion of the subject, the subject is made to touch the device side and temporarily stop the breathing, and the X-ray is applied thereto. Then, a grid inside the Bucky X-ray device moves to finish the imaging. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an X-ray imaging apparatus, and in particular, for X-ray imaging, a subject is placed on a standing imaging table (imaging stand), a horizontal imaging table (imaging table), a fluoroscopic imaging table, etc. The present invention relates to an X-ray imaging apparatus that positions and records an X-ray image on a film or the like.
[0002]
[Prior art]
Examples of the X-ray imaging table that positions the subject for imaging include a direct imaging table, an indirect imaging table, a tomography table, a fluoroscopic imaging table, an X-ray CT imaging table, and a special imaging table. For X-ray diagnosis, a direct imaging stand that can position a human body and directly record an X-ray image on a film or the like is often used. As a typical direct imaging stand, in the standing position, the one with a bucky photographing device (high voltage reader) that performs photographing with a high voltage for chest photography is mainstream, and even in the horizontal type, bucky photography. The device is in use.
FIG. 3 shows a standing type photographing stand provided with the Bucky photographing device 1.
The standing-type imaging stand (imaging stand) is positioned according to the subject's imaging region by moving the Bucky imaging device 1 up and down along a guide rail 2 a provided on the stand 2. Generally, it is fixed on the floor near the wall of the examination room, and chest imaging is performed mainly from a long distance in combination with a ceiling-suspended X-ray tube device.
The Bucky photographing device 1 includes a main body case having a protective cover 1c on the front surface, a Bucky device 1b having a grid and a moving mechanism for moving the grid, and a cassette tray for the film cassette 1a on which the film is set. The For the bucky device 1b, a reciprocating type that reciprocates the grid during X-ray imaging is often used to remove scattered rays and to make the grid stripes invisible. The body case is made of an aluminum alloy material or the like, and a plastic plate or the like is used for the front protective cover 1c.
[0003]
In addition, conventional X-ray imaging devices such as direct imaging table, indirect imaging / tomographic imaging table, fluoroscopic imaging table, X-ray CT imaging table, special imaging table, etc. are made of acrylic resin. Or a plywood specially treated with wood or the like is used (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP 2000-279405 A (Page 6, FIG. 1, Page 7, FIG. 3)
[0005]
[Problems to be solved by the invention]
The conventional X-ray imaging apparatus is configured as described above. However, when performing X-ray imaging, the X-ray imaging is not performed with clothing that absorbs X-rays on the imaging site, but the skin is directly exposed to the surface of the apparatus. Touch and hold for a while to stop and take a picture. At this time, since the skin of the subject contacts the surface of the apparatus, there is a problem that the subject is deprived of heat by the surface of the apparatus and feels cold and painful.
[0006]
The present invention has been made in view of such circumstances, and provides an X-ray imaging apparatus that does not feel cold even when skin corresponding to an imaging region of a subject touches the surface of the apparatus. Objective.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, an X-ray imaging apparatus of the present invention is an X-ray imaging apparatus that positions a subject on an imaging table and records an X-ray image by an imaging means in order to perform X-ray imaging, A heating sheet comprising a heating element covered with an X-ray transparent insulating sheet on the surface of the imaging table on the subject side, and an electrode that is attached to the end of the heating table and supplies current to the heating sheet It is.
[0008]
In addition, the X-ray imaging apparatus of the present invention is an X-ray imaging apparatus that positions an examinee on an imaging table and records an X-ray image by an imaging unit in order to perform X-ray imaging. A heating sheet composed of a heating element covered with an X-ray transparent insulating sheet on the surface of the imaging table, an electrode attached to the end of the heating table to supply current to the heating sheet, and control for adjusting the current to the outside And a circuit.
[0009]
The X-ray imaging apparatus of the present invention is configured as described above, and an insulated heat generating sheet with good X-ray permeability is provided on the surface of the imaging table, and current is supplied from electrodes provided at the ends thereof. The current is adjusted by a control circuit provided outside. And even if a subject touches bare skin on the surface of an imaging stand, it is made the surface temperature which does not feel cold. As a result, the subject can touch or put on the device with peace of mind without feeling cold.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the X-ray imaging apparatus of the present invention will be described with reference to FIG. FIG. 1 is a view showing an upright imaging stand of the X-ray imaging apparatus of the present invention.
The X-ray imaging apparatus of the present invention includes a stand 2 that supports the apparatus, a Bucky imaging apparatus 1 that performs X-ray imaging of the subject, and an X-ray incident surface of the Bucky imaging apparatus 1 so that the skin of the subject is exposed. A heating sheet 3 that does not feel cold when touched, and a control circuit 3c that supplies power to the electrodes 3d provided at both ends of the heating sheet 3 to adjust the temperature are included.
[0011]
The X-ray imaging apparatus differs from the conventional apparatus in that the conventional apparatus uses acrylic resin as the material of the protective cover 1c on the X-ray incident surface of the Bucky imaging apparatus 1, as shown in FIG. A normal fluoroscopic imaging table uses a specially processed top board for wood, etc., and a shooting stand that does not have a Bucky imaging mechanism has a grid fitted on the surface. This X-ray imaging apparatus has a heat generating sheet 3 on the X-ray incident surface of the Bucky imaging apparatus 1 (the same applies to other apparatuses), and a temperature at which the heat generating sheet 3 is comfortable by a control circuit 3c provided outside. Adjusted to For this reason, even if the skin of the subject touches, it is possible to take a picture without having to feel painful.
[0012]
Next, components of the X-ray imaging apparatus will be described.
The stand 2 is used for a standing type image receiving unit moving type direct imaging table, and is positioned by moving the Bucky imaging device 1 up and down along the guide rail 2a in accordance with the imaging region of the subject. It is mainly used for reader shooting tables and Bucky shooting tables.
The bucky photographing device 1 has a heat generating sheet 3 attached to the front surface, a main body case, a bucky device having a grid and a moving mechanism for moving the grid, and a cassette tray for a film cassette in which a film is set. It consists of. For the Bucky device, a reciprocating type that reciprocates the grid during X-ray imaging is often used to remove scattered radiation and to make the grid stripes invisible. The main body case is made of an aluminum alloy material or the like, and the heat generating sheet 3 is attached to the front surface.
The heat generating sheet 3 is made of a material having good X-ray transparency and is attached to the X-ray incident surface of the Bucky imaging apparatus 1. The heat generating sheet 3 includes a heat generating element 3a, insulating sheets 3b attached to both surfaces thereof, electrodes 3d provided on upper and lower ends of the heat generating element 3a and supplying current to the heat generating element 3a, and a cable 3e thereof. Is done.
The heat generating element 3a is made of a material having good X-ray transparency, for example, a conductive resin (carbon black / graft polymer) as a heat generating material, and integrally molded with an insulating material such as a heat resistant epoxy resin impregnated glass cloth or polyester film, The sheet is finished in a flexible state. The thickness can be reduced to about 0.28 to 1.8 mm, and the surface temperature can be raised to about room temperature to about 120 ° C. by resistance heating by passing an alternating current or direct current. The temperature distribution can be made uniform with a wide heat generation area, and the durability, water resistance, and chemical resistance are excellent. The surface on the X-ray incident surface side of the Bucky imaging device 1, the top surface of the horizontal imaging table, and the fluoroscopic imaging table Applicable to the top surface.
The insulating sheet 3b is made of polyethylene terephthalate (PET) or polyethylene (PE) and has good X-ray transparency. Moreover, a copper foil or a copper plate is used for the electrode 3d.
The control circuit 3c is provided outside, is connected to the electrode 3d of the heat generating sheet 3, and adjusts the alternating current or direct current flowing through the heat generating sheet 3. The control circuit 3c is cooled even if the skin of the subject touches the heat generating sheet 3. The temperature is adjusted so that it does not feel.
[0013]
Next, the operation of this X-ray imaging apparatus will be described.
The power source of the control circuit 3c of the heat generating sheet 3 is input before photographing. When the heat generating sheet 3 is touched with bare skin and the temperature becomes a comfortable temperature, the subject stands in front of the Bucky photographing apparatus 1 and the Bucky photographing apparatus 1 is moved up and down along the guide rail 2 a of the stand 2. Adjust the height to the subject's imaging region and fix it. The height of the X-ray tube device is adjusted accordingly. In order to capture a clear X-ray image, the imaging region of the subject is brought into contact with the heat generating sheet 3 on the front surface of the bucky imaging device 1 so that the imaging region of the subject becomes bare skin. The subject does not feel the coldness as before even if he / she touches the device, calms down with peace of mind, breathes in and stops breathing, X-ray irradiation is performed in this state, and chest imaging is completed.
[0014]
Next, another embodiment of the X-ray imaging apparatus will be described with reference to FIG. FIG. 2 shows a view in which the heat generating sheet 6 is used for the horizontal photographing table 4. This X-ray imaging apparatus is a horizontal top plate fixed type direct imaging table, and a Bucky imaging device 4a is incorporated under the top plate 5 so that it can move in the longitudinal direction of the top plate 5 and is fixed to an imaging region. . A heat generating sheet 6 is attached to the surface of the top plate 5, electrodes 6d are provided on both sides of the top plate 5 in the longitudinal direction, and an external control circuit 6c is connected to the electrode 6d by a cable 6e. Thus, the heat generating sheet 6 is used after being adjusted to an appropriate predetermined temperature.
[0015]
In the above-described embodiment, the standing-type imaging stand (imaging stand) and the horizontal top fixed imaging platform (imaging table) in which the Bucky imaging devices 1 and 4a are incorporated have been described. The present invention can also be applied to an imaging table, a tomography table, a fluoroscopic table, and the like.
Further, the heat generating sheet 3 can be made to be a detachable flexible sheet so that it can be used depending on the season, the temperature condition of the examination room, etc., or the state of the apparatus (particularly an apparatus having a low temperature).
Furthermore, the body temperature can always be set, and in some cases, temperature adjustment can be made unnecessary. Therefore, the installation of the adjusting mechanism is not an absolute requirement.
[0016]
【The invention's effect】
The X-ray imaging apparatus of the present invention is configured as described above, and a heating sheet is pasted on the surface so that it does not feel cold even if the skin of the imaging region of the subject touches the imaging table surface. Because the temperature is adjusted by the control circuit installed in the camera, even if the subject's bare skin touches the surface of the imaging table, it does not feel cold, touches the imaging table with peace of mind, and always keeps the breath at a comfortable temperature. You can stop and take a picture.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of an X-ray imaging apparatus according to the present invention.
FIG. 2 is a diagram showing another embodiment of the X-ray imaging apparatus of the present invention.
FIG. 3 is a diagram showing a conventional X-ray imaging apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bucky imaging device 2 Stand 2a Guide rail 3 Heat generating sheet 3a Heating element 3b Insulating sheet 3c Control circuit 3d Electrode 3e Cable 4 Horizontal imaging stand 4a Bucky imaging device 5 Top plate 6 Heat generating sheet 6c Control circuit 6d Electrode 6e Cable

Claims (2)

An X-ray imaging apparatus that positions a subject on an imaging table and records an X-ray image by an imaging means in order to perform X-ray imaging, and has a good X-ray permeability on the surface of the imaging table on the subject side. An X-ray imaging apparatus comprising: a heat generating sheet comprising a heat generating element covered with an insulating sheet; and an electrode attached to an end of the heat generating sheet to supply a current to the heat generating sheet. An X-ray imaging apparatus that positions a subject on an imaging table and records an X-ray image by an imaging means in order to perform X-ray imaging, and has a good X-ray permeability on the surface of the imaging table on the subject side. A heat generating sheet comprising a heat generating element covered with an insulating sheet, an electrode attached to an end thereof for supplying a current to the heat generating sheet, and a control circuit for adjusting the current to the outside are provided. X-ray equipment.

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