JPH04204437A - X-ray radiographing device - Google Patents

Abstract

PURPOSE:To simultaneously or selectively realize X-ray radiographing on a stimulable phosphor sheet and an X-ray film or either of them by providing the photographing stage of the stimulable phosphor sheet behind the photographing stage of the X-ray film with respect to an X-ray tube. CONSTITUTION:The photographing stage 4a constituted of a frame-like stopper in order to hold the X-ray film F at a photographing time is provided on the patient S side of an X-ray radiographing device main body 3 and a pair of sensitizing papers 5 is fitted on the stage 4a so as to interpose the held film F. Besides, the similar photographing stage 4b for holding the stimulable phosphor sheet P is provided behind the stage 4a with respect to the X-ray tube 2. Therefore, the photographing can be simultaneously executed to the film F and the sheet P whose X-ray sensitivity is higher than the film F or executed by selecting either of them. Thus, the photographing is simultaneously or selectively realized on the X-ray film and the stimulable phosphor sheet or either of them.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an X-ray imaging apparatus used for, for example, medical diagnosis.

[Prior Art] Conventionally, when using X-ray photography for medical purposes, an X-ray film or a stimulable phosphor sheet (Imaging Plate) is used.
For example, as disclosed in Japanese Unexamined Patent Publication No. 1-298340, separate supply magazines, storage magazines, and holders are provided for the X-ray film and the stimulable phosphor sheet. An X-ray imaging apparatus that performs selective imaging of either one by exchanging the X-ray apparatus, or an X-ray imaging apparatus that performs selective imaging without replacing the X-ray apparatus has been proposed.

[Problem to be solved by the invention] However, in the above-mentioned conventional example, X-ray film,
If you are selectively photographing one of the stimulable phosphor sheets and need to compare the two to make a diagnosis, do not perform the photograph twice (this will increase the time required for the photograph).
Since the amount of X-rays irradiated to the subject also increases, there is a drawback that the burden on the subject becomes large and it becomes difficult for the subject to be examined.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an X-ray imaging apparatus which can eliminate the above-mentioned drawbacks of the prior art and is capable of simultaneously imaging an X-ray film and a stimulable phosphor sheet, or selectively imaging either one of them.

[Means for Solving the Problems 1] In order to achieve the above-mentioned object, the X-ray imaging apparatus according to the present invention irradiates the subject with X-rays from an X-ray tube and generates the transmitted X-ray image. An X-ray imaging device for imprinting, comprising a first imaging stage installed at an X-ray imaging position and holding an X-ray film, and a storage device installed behind the first imaging stage with respect to the X-ray tube. a second imaging stage that holds a stimulable phosphor sheet; a first moving means that moves the X-ray film from a first supply magazine through the first imaging stage to a first storage magazine; and second moving means for moving the body sheet from the second supply magazine to the second storage magazine via the second photographing stage.

[Function] The X-ray imaging apparatus having the above-mentioned configuration has an imaging stage that uses a stimulable fluorescent sheet placed against an X-ray tube. The apparatus is installed behind a photographing stage that uses film, and simultaneously or selectively photographs an X-ray film and a stimulable phosphor sheet having higher X-ray sensitivity than the X-ray film.

[Example] The present invention will be explained in detail based on illustrated embodiments.

FIG. 1 shows a configuration diagram, and in the horizontal direction from which X-rays are emitted from an X-ray tube 2 fixed to a pedestal 1a, there is an XSSM shadowing device main body 3 fixed to a pedestal 1b. FIG. 2 shows a configuration diagram of the X-ray imaging device main body 3. A frame-shaped stopper is provided on the subject S side of the X-ray imaging device main body 3 to hold the X-ray film F during imaging. A pair of intensifying screens 5 are attached to the imaging stage 4a so as to sandwich the held X-ray film F therebetween, and a similar intensifying screen 5 is attached to hold the stimulable phosphor sheet P. An imaging stage 4b is provided behind the imaging stage 4a with respect to the X-ray tube 2. In order to store the X-ray film F before imaging, an X-ray film supply magazine 6a is provided at the back of the X-ray imaging apparatus main body 3, and an X-ray film supply magazine 6a is connected to a suction pump (not shown) facing the supply magazine 6a. A suction cup 7a is movably disposed, and a plurality of sets of roller sections 8a and guide plates 9a are provided for moving the X-ray film F to the imaging stage 4a. Below the imaging stage 4a, a roller section 10a is provided. , an X-ray film magazine 12a are provided.

Further, in order to store the stimulable phosphor sheet P, a stimulable phosphor sheet supply magazine 6b is provided adjacent to the X#il film supply magazine 6a.
b is provided, and the stimulable phosphor sheet P is transferred to the image carrying stage 4.
multiple sets of roller parts 8b and guide plate 9 for moving to b
b is provided partially in common with the roller section 8a and guide handle 9a, and further below the imaging stage 4b is provided a roller section 10b, a guide plate 11b, and a stimulable phosphor sheet storage magazine 12b. . Further, a noise canceling device 13 facing the photographing surface of the stimulable phosphor sheet P is provided midway between the roller portions 8b.

When simultaneously performing imaging using the X-ray film F and the stimulable phosphor sheet P, a control means (not shown) controls the X-ray film F and the stimulable phosphor sheet P stored in the supply magazines 6a and 6b, respectively. It is attracted by the suction cups 7a and 7b, and moved to the imaging stage 4a and the imaging stage 4b by the roller section 8a, guide plate 9a, roller section 8b, and guide plate 9b. , After irradiating X-rays from the X-ray tube 2 and performing imaging, the X-ray film F and the stimulable phosphor sheet P are moved to the roller section 10a and the guide plate 11a, respectively.
, are stored in storage magazines 12a and 12b, respectively, via roller portion 10b and guide plate 11b.

X-ray film F and intensifying screen 5: Although the amount of X-rays is slightly blocked by the X-ray film F and the intensifying screen 5, Since the sensitivity of the stimulable phosphor sheet P to X-rays is sufficiently higher than that of the film F, there is no problem with imaging, and both the X-ray film F and the stimulable phosphor sheet P are irradiated with x#il at the same time. This makes it possible to take pictures. Note that the noise erasing device 13 illuminates the stimulable phosphor sheet P with weak light before shadowing to eliminate noise caused by the afterimage or fog.

Selective manipulation is also possible by selectively moving either the X-ray film F or the stimulable phosphor sheet P to the imaging position, and multiple X-ray films F or stimulable phosphor sheets P can be selectively manipulated.
Continuous shooting is possible by using supply magazines 6a, 6b and storage magazines 12a, 12b that can store 2000 yen.

Furthermore, as shown in FIG. 3, if the X-ray tube 2 is placed above the horizontal bed 14 and the X-ray imaging apparatus main body 3 is placed below, or in reverse, the subject S can be placed in a lying state. It is now possible to take pictures.

[Effects of the Invention] As explained above, in the xmm imaging device according to the present invention, the stimulable phosphor sheet manipulation stage is provided behind the X-ray film transport stage with respect to the X-ray tube. Xi
The stimulable phosphor sheet and the X-ray film, which have higher X-ray sensitivity than the film, are simultaneously or selectively treated with x.
! li! It is possible to take images, and especially when it is necessary to compare the images taken by both, the imaging efficiency is improved, the amount of X-rays irradiated to the patient is reduced, and the burden on the patient is reduced. Corresponding images without deviation can be easily obtained, which is convenient for diagnosis.

[Brief explanation of the drawing]

The drawings show an embodiment of the X-ray imaging device according to the present invention.
The figure is a configuration diagram, Figure 2 is a configuration diagram of the main body of the X-ray imaging device, and Figure 3 is a configuration diagram of the main body of the X-ray imaging device.
The figure is a configuration diagram of another embodiment. 2 is the X-ray tube, 3 is the X-ray imaging device body, 4a, 4b
is an image stage, 6a, 6b are supply magazines, 7a, 7
b is a suction cup, 8a, 8b, 10a, 10b are roller parts, 9
a, 9b, 11a, and 11b are guide plates, 12a and 12b are storage magazines, and 13 is a noise canceling device. Patent Applicant Ichiji Canon Co., Ltd., Agent Patent Attorney Yukihiko Hibiya: 2"-'Anal Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. X that passes through when the subject is irradiated with X-rays from an X-ray tube
An X-ray imaging device for recording a ray image, comprising: a first imaging stage installed at an X-ray imaging position and holding an X-ray film; and behind the first imaging stage with respect to the X-ray tube. a second imaging stage for holding a stimulable phosphor sheet;
a first moving means for moving the stimulable phosphor sheet from the second supply magazine to the second storage magazine via the second imaging stage; An X-ray photographing apparatus comprising: a moving means.