JPH078482A - X-ray fluoroscopic photographic stand - Google Patents

Abstract

PURPOSE:To easily determine the photographing position and to improve the operability and diagnosis efficiency. CONSTITUTION:The device is provided with a controller 1 which interlocks lighting operation of a lamp 8 placed inside a diaphragm device 2 and irradiating on a subject with opening operation of squeezing blades 4 and 6. Thus, the light of the lamp 8 indicates on the subject as the photographing range of the used film size so that the operator can easily perform positioning and the operability is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray fluoroscopic imaging stand capable of fluoroscopic imaging, and more particularly to a technique for setting an imaging position of a subject.

[0002]

2. Description of the Related Art In an X-ray fluoroscope, the irradiation range of X-rays emitted from an X-ray tube is limited by a variable diaphragm device.
X-rays pass through the subject on the top plate and the transmitted X-rays are input to an image intensifier (hereinafter referred to as II) for fluoroscopic imaging, or X-ray photographs are taken using X-ray film. I am shooting and getting images. In addition, in order to take a picture, the subject is usually positioned, but in the past, the operator moved the tabletop while looking at the fluoroscopic image on the monitor on the operator's table, and the position near the subject. Then, the lamp provided inside the diaphragm device is turned on to irradiate the subject with the light of the lamp, and the top plate is moved based on the area on which the light is applied to perform positioning. This lamp can be turned on by pressing a diaphragm lamp switch provided on the side surface of the diaphragm device.

[0003]

However, in the above-mentioned conventional apparatus, the range of the light of the lamp that irradiates the subject at the time of positioning is I.V. I. It was limited to the size of the primary fluorescent screen.
This is an I.D. I. Since it is used only for the X-ray irradiation field so that the X-ray is not emitted outside the required range, I. It was controlled to open and close on the primary fluorescent screen to the size circumscribing it. Therefore, for example, I.S. I. When the size is 9 inches, the size of the diaphragm device can only be opened and closed up to a size of 9 inches × 9 inches when the fluoroscopic positioning and the positioning by turning on the lamp are performed. At this time,
When the size of the film to be used is 14 inches × 17 inches, the positioning size is different by 5 inches × 8 inches, so that accurate positioning is difficult. As a result, it takes a long time to take a picture, resulting in a decrease in diagnosis efficiency.

Therefore, an object of the present invention is to easily determine the photographing position and improve operability and diagnostic efficiency.

[0005]

In order to achieve the above object, an X-ray tube for irradiating a subject with X-rays and an X-ray emission range is provided by opening and closing diaphragm blades mounted on the front surface of the X-ray tube. A diaphragm device for determining, an image intensifier for converting transmitted X-rays of the subject into an optical image, a film for photographing the transmitted X-rays of the subject as an X-ray photograph, An X-ray fluoroscopic imaging stand having a lamp for irradiating light is provided with a control device for interlocking lighting of the lamp and opening / closing operation of the diaphragm device.

[0006]

In order to position the photographing range, the switch on the side of the diaphragm device is pressed to turn on the lamp. Then, the diaphragm device is moved to the size of the used film, and the subject is irradiated with the light in the photographing range. This enables reliable positioning.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram showing the configuration of this embodiment, and FIG. 2 is a front view of an X-ray fluoroscopic imaging stand using this embodiment. Reference numeral 1 is a control device for controlling a diaphragm device 2 by inputting a signal of a film size to be used, and 2 is a diaphragm device for X in the horizontal direction of the film.
A diaphragm blade 4 for limiting the lines, a diaphragm blade 6 for limiting the X-rays in the vertical direction of the film, motors 3 and 5 for opening and closing these diaphragm blades 4, 6, and a lamp 8 for irradiating the subject with light.
And a switch 7 for turning on the lamp 8. 9 is an X-ray tube, 10 is an I.D. I. , 11 are top plates on which the subject is laid.

Next, the operation of this embodiment will be described. First, when the switch 7 is pressed to perform imaging positioning of the subject before imaging, a lamp 8 provided inside the diaphragm device 2 is pressed.
Lights up. Then, at the same time when the lamp 8 is turned on, the motors 3 and 5 respectively rotate to open and close the diaphragm blades 4 and 6 to the size of the film used, which is set in advance by the control device. At this time, the range of light irradiated on the subject becomes the same range as at the time of imaging, and the operator moves the X-ray tube 1 and the diaphragm device 2 to perform positioning.

At the same time when the positioning is completed and the lamp 8 is turned off, the diaphragm blades 4 and 6 are moved to the first I.D. I. Move to size. Further, when X-rays are radiated for fluoroscopy when the lamp 8 is turned on, the diaphragm blades 4 and 6 are automatically set to I.V.
I. Move to size.

As a result, the light of the lamp 8 is surely shown to the subject as the photographing range of the used film size, so that the operator can easily position and improve the operability.

[0011]

According to the present invention, since the diaphragm device moves to the film size when the lamp is turned on, the photographing position can be surely and easily confirmed, and the operability and the diagnostic efficiency are improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention.

FIG. 2 is a front view of an X-ray fluoroscopic imaging table using the present invention.

[Explanation of symbols]

 1 Control device 2 Aperture device 3 Motor 4 Aperture blade 5 Motor 6 Aperture blade 7 Switch 8 Lamp 9 X-ray tube 10 I.P. I. 11 Top plate

Claims (1)

[Claims] 1. An X-ray tube for irradiating a subject with X-rays, and this X-ray tube.
A diaphragm device attached to the front surface of the X-ray tube to determine the radiation range of X-rays by opening and closing diaphragm blades, an image intensifier for converting the transmitted X-rays of the subject into an optical image, and the transmitted X-rays of the subject. In an X-ray fluoroscopic imaging stand having a film to be photographed as an X-ray photograph and a lamp for irradiating a subject with light inside the diaphragm device, a controller for interlocking lighting of the lamp and opening / closing operation of the diaphragm device is provided. An X-ray fluoroscopic imaging stand characterized by being equipped.