JPH0565307U - Mobile X-ray equipment - Google Patents

Abstract

(57) [Summary] [Purpose] It is intended to secure a forward field of view when moving and to move safely. [Structure] U-shaped distance holder 2 on the side surface of an X-ray diaphragm device 1.
Is held by the bearing 3, and the E-shaped retaining ring 4 is fixed to the end of the distance holder 2 so as not to come off. Between the upper and lower shaft holes of the bearing 3, the spring 5 with the distance holder 2 inserted
And pushes the distance holder 2 downward. Also,
It is arranged near the end of the distance holder 2 so that the detection switch 6 is pressed when the distance holder 2 contracts. [Effect] By making the distance holder 2 expandable and contractable, and detecting the contraction by the detection switch 6, it is possible to store the distance holder 2 lower than the conventional one when moving, and the forward visibility is improved. In addition, the height of the distance holder 2 is S when photographing.
When it becomes SD or less, it becomes impossible to irradiate X-rays, so that safe imaging can be performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mobile X-ray apparatus, and more particularly to a distance holder that limits the distance between the X-ray tube focus and the surface of a subject.

[0002]

[Prior Art]

 The mobile X-ray device includes an X-ray high-voltage device that generates a high voltage for irradiating X-rays, an X-ray control device that controls the irradiation of X-rays according to imaging conditions, and the like, and moves within a predetermined range. An X-ray tube device for irradiating the specimen with X-rays is mounted on a moving carriage to move the patient room. In the moving X-ray apparatus, JIS Z 4701 stipulates that the distance between the focal point of the X-ray tube and the human skin (hereinafter referred to as SSD) should not be less than 30 cm. Therefore, in the conventional device, the case of the X-ray diaphragm device mounted in the X-ray irradiation direction of the X-ray tube device is lengthened, or the U-shaped distance holder is attached to the X-ray diaphragm device to increase the SSD to 30 cm. I was trying not to be less than.

[0003]

[Problems to be solved by the device]

 Since the conventional mobile X-ray device moves the patient room to perform X-ray imaging, the X-ray tube device is rotated to the operator's front side and lowered down to ensure traveling stability when moving. In the case where the X-ray diaphragm device has a long case or is equipped with a distance holder, the height of the X-ray tube device is increased by about 30 cm corresponding to the SSD, so that the forward view becomes narrow as shown in FIG. I was having trouble. An object of the present invention is to secure a forward field of view when moving the vehicle so that the vehicle can be moved safely.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a support for movably supporting an X-ray tube device, an X-ray high-voltage device for irradiating X-rays, and an X-ray control device for controlling X-ray irradiation are provided. A mobile X-ray device, which is mounted on a movable carriage and which is provided with a distance holder for securing a distance between a surface of a subject and an X-ray tube focal point to the X-ray tube apparatus at a certain distance or more at the time of image capturing. And a detector for detecting whether or not the position of the distance holder is at the fixed distance.

[0005]

[Action]

 When the X-ray tube device is pressed against the X-ray control device during movement, the distance holding device contracts, and the distance holding device is stored in the X-ray diaphragm device. At the time of imaging, the distance holder has a height enough to secure the SSD, and when the distance holder touches the subject and pushes further, the distance holder contracts, and when the contraction is detected by the detector, X-rays are not emitted. As a result, it is possible to secure a field of view when moving and to prevent irradiation below the SSD when shooting.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a partially transparent perspective view showing an embodiment of the present invention, and FIG. 2 is a schematic side view of a mobile X-ray apparatus using this embodiment. Reference numeral 1 is an X-ray diaphragm device, and 2 is a distance holder, which is U-shaped. Reference numeral 3 denotes a U-shaped bearing that guides and supports the end portion of the distance holding tool 2 through two shaft holes, and 4 denotes an E-shaped retaining ring that is fixed to the end portion of the distance holding tool 2 so that the distance holding tool 2 does not come off. 5 is a spring for expanding and contracting the distance holder 2, 6 is a detection switch for detecting whether or not the distance holder 2 is contracted, 7 is an X-ray tube device, 8 is an X-ray control device, and 9 is an X-ray. It is a support for moving the pipe device 7.

First, the structure will be described. A bearing 3 is attached to an inner side surface of the X-ray diaphragm device 1, and a U-shaped distance holder 2 is slidably held by the bearing 3. Then, the E-shaped retaining ring 4 fixes the end portion of the distance retainer 2 and is supported by the upper shaft hole of the bearing 3 so that the distance retainer 2 does not come off. A spring 5 passing through the distance holder 2 is provided between the upper and lower shaft holes of the bearing 3, and the spring 5 constantly pushes the distance holder 2 downward. In order for the spring 5 to push down the distance holder 2, a stopper is provided on the lower shaft hole side of the distance holder 2 which passes between the upper and lower shaft holes of the bearing 3, and the spring is provided between the upper shaft hole and the stopper. Put 5 The distance holder 2 is arranged near the end of the distance holder 2 so that the detection switch 6 is pushed when the distance holder 2 contracts. Two distance holders 2 are provided so as to face the inner side surface of the X-ray diaphragm device 1.

Next, the operation of this embodiment during movement and shooting will be described. At the time of movement, the X-ray tube device 7 is rotated around the column 9 toward the operator side, that is, the X-ray control device 8 side, and the X-ray tube device 7 is pushed down. Then, the distance holder 2 hits the X-ray controller 8, but when the X-ray tube device 7 is further pushed down, the distance holder 2 is guided by the bearing 3 and pushes the spring 5 to contract into the X-ray diaphragm device 1. Will be done. As a result, the position of the X-ray tube device 7 when moved and stored can be lowered by the height of the distance holder 2 as compared with the conventional case.

Further, at the time of photographing, the X-ray tube device 7 is rotated toward the subject side and brought to the photographing position. At this time, when the X-ray tube device 7 is lowered and the distance holder 2 touches the subject and further pushes it down, the distance holder 2 is contracted into the X-ray diaphragm device 1 as in the case of the movement. Then, when the height of the distance holder 2 becomes lower than the SSD, the end of the distance holder 2 pushes the detection switch 6, and the detection switch 6 sends a signal to the X-ray controller 8 so that the X-rays are not irradiated. Control.

As described above, in the present embodiment, by making the distance holding tool 2 extendable, the distance holding tool 2 can be stored lower than the conventional one when moving, and the forward visibility is improved. Further, by detecting the contraction of the distance holder 2 by the detection switch 6, when the height of the distance holder 2 becomes less than or equal to SSD at the time of photographing, X-rays cannot be emitted, so that safe photographing can be performed.

[0011]

[Effect of the device]

 According to the present invention, since the distance holder can be expanded and contracted, the forward field of view when moving is not obstructed, so that a sufficient field of view can be secured. Further, since the detector for detecting the contraction of the distance holding tool is provided, it is possible to detect the contraction of the distance holding tool at the time of photographing and not to irradiate X-rays, that is, since it is not possible to shoot below SSD, it is possible to carry out safe photographing.

[Brief description of drawings]

FIG. 1 is a partially perspective view showing the present invention.

FIG. 2 is a side view of a mobile X-ray apparatus using the present invention when moving.

FIG. 3 is a side view of a conventional mobile X-ray device when moving.

[Explanation of symbols]

 1 X-ray diaphragm device 2 Distance holding device 3 Bearing 4 E-shaped retaining ring 5 Spring 6 Detection switch 7 X-ray tube device 8 X-ray control device 9 Strut

Claims (1)

[Scope of utility model registration request] 1. A movable carriage comprising a support for movably supporting an X-ray tube device, an X-ray high voltage device for irradiating X-rays, and an X-ray control device for controlling X-ray irradiation. In the mobile X-ray apparatus, the distance holding tool is mounted on the X-ray tube apparatus and is provided with a distance holding tool that secures the distance between the surface of the subject and the X-ray tube focus to a certain distance or more at the time of imaging. A movable X-ray apparatus, which is provided so as to be capable of expanding and contracting in a direction, and is provided with a detector for detecting whether or not the position of the distance holder is at the position of the above-mentioned fixed distance.