X-ray fluoroscopy device
A fluoroscopic photography and X-ray technology, which is applied in the fields of radiological diagnosis instruments, medical science, diagnosis, etc., can solve the problems of blurred images, reduced sliding amount, and increased installation space, so as to ensure the amount of travel and restrain the installation space. The effect of increasing and decreasing the height of the device
Inactive Publication Date: 2011-12-07
SHIMADZU SEISAKUSHO CO LTD
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Problems solved by technology
In this case, the height of the apparatus increases by an amount corresponding to the fact that the support arm 69 is higher than the X-ray tube 63 (the distance marked by L in the figure), so that the installation space for allowing the top plate 61 to stand up and down is increased.
[0007] In addition, when the height of the device is to be suppressed, the amount of sliding of the support arm 69 relative to the pillar 67 is reduced, and a sufficient amount of stroke of the X-ray tube 63 cannot be ensured.
As a result, for example, if the distance between the focal films cannot be enlarged, blurring occurs in the obtained image, and chest X-ray imaging cannot be performed properly
In addition, if the distance between the focal films cannot be shortened, it is not possible to properly perform gastrointestinal diagnosis, etc.
Method used
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Embodiment 1
[0067] Next, Embodiment 1 of the present invention will be described with reference to the drawings. figure 1 It is the front view of the X-ray fluoroscopy apparatus of an Example. also, figure 1 (a), (b), and (c) represent the state that the top plate is horizontal, inclined, and vertical, respectively.
[0068] The X-ray fluoroscopy device of the present embodiment has: base 1, top board support body 3 (hereinafter referred to simply as main frame), top board 5, pillar 7, middle slider 11, supporting arm 15, X-ray tube 17 and Cassette19. The base 1 is mounted on a floor surface, and includes a pinion gear 21 that is rotationally driven around a horizontal axis by a drive mechanism (not shown). The main frame 3 has a sector rack (gear) 23 meshing with the pinion 21 , is supported by the base 1 , and rotates about a horizontal axis by the rotation of the pinion 21 . The top plate 5 is held by the main frame 3 , and moves up and down in unison with the rotation of the mai...
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The invention provides an X-ray fluoroscopic photographing device, which is equipped with a sliding arm supporting an X-ray tube, a middle slider capable of movably maintaining a support arm along the radiation axis direction of an X-ray generating source, and a support capable of movably maintaining the middle slider along the radiation axis, therefore, compared with the travel route amount of the X-ray tube, the movement amounts of the middle slider and the support arm can be reduced and the support, the middle slider and the support arm can be separately shortened, thereby reducing the device height. Thus, the space increase of the device is inhibited, and simultaneously the travel route amount of the X-ray generating source can be appropriately ensured.
Description
[0001] This application is a divisional application of the application with the filing date of November 24, 2006, the application number 200680056424.3 (international application number: PCT / JP2006 / 323429), and the name "X-ray fluoroscopy device". technical field [0002] The present invention relates to an X-ray fluoroscopy device for performing fluoroscopy on an object to be inspected, and particularly relates to a technique for moving an X-ray source far or near relative to an imaging device. Background technique [0003] At present, there are X-ray fluoroscopy devices that can not only diagnose the digestive tract such as the stomach, but also perform chest X-rays. However, it is necessary to maintain a longer distance from the X-ray source to the imaging device (hereinafter abbreviated as Focus Film Distance (FFD: Focus Film Distance)) in chest X-ray imaging than in digestive tract diagnosis. For example, it is about 1.1 m for alimentary tract diagnosis, and about 1.8 t...
Claims
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IPC IPC(8): A61B6/00
Inventor 吉田幸司宍仓琢仁
Owner SHIMADZU SEISAKUSHO CO LTD