JPH06233754A - X-ray television - Google Patents

Abstract

PURPOSE:To provide the compact X-ray television for which the movable range of a photographing part is enlarged and a wide diagnostic range can be secured without moving an examinee. CONSTITUTION:This X-ray television is composed of a table main body 12 provided with a top panel 12a where the examinee is placed, a tube 14 arranged above the top panel 12a by which the reagent on the top panel 12a is irradiated with X rays, an X-ray photographic sheet set part 18 arranged under the top panel 12a and set with an X-ray photographic sheet, and a solid detector 15 provided under the X-ray photographic sheet set part 18. Further, the television is provided with a photographing part 13 movable along the side part of the table body 12, and the tube 14 of the photographing part 13, the X-ray photographic sheet set part 18 and the solid detector 15 are arranged on the almost same straight line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to an X using a solid-state detector.
Regarding line television.

[0002]

2. Description of the Related Art Next, a conventional example will be described with reference to the drawings.
FIG. 5 is a front view of a conventional X-ray television, and FIG. 6 is a left side view of FIG.

In these figures, reference numeral 1 is a base, and 2 is a table body provided with a top plate 2a on which an examinee rests and which is arranged so as to be able to be tilted with respect to the base 1. Reference numeral 3 is an imaging unit provided so as to be movable along the table body 2. A tube 4 that emits X-rays to the subject placed on the table body 2 is provided above the imaging unit 3. or,
The lower part of the slider 3 faces the tube 4 via the table body 2, II (image intensifier)
5 is further provided, and on the side of II5, a cassette sheet (film feeding section) 7 for feeding and discharging X-ray film, which is an X-ray photographing sheet, and an X sheet fed from the cassette sheet 7.
The X-ray film is set on the X-ray film setting unit 8 which is the photographing position formed above II5, and the photographed X-ray film is returned to the cassette-less SFD (Spot Film Devi).
ce) 9 is provided.

[0004]

[Problems to be Solved by the Invention]
The line television has the following problems. The height of II5 is high.
In order to arrange it on top of I.5, the height of the table main body 2 becomes high, and the cassette set 7 and SFD 9 are arranged on the side of II5.

From the state shown in FIG. 5, when the head of the subject is imaged, it can be performed by moving the imaging unit 3 in the direction of arrow E (the maximum movement amount is A- in FIG.
In B), when the foot of the subject is imaged, the cassette wire 7 of the imaging unit 3 interferes with the frame of the table body 2,
Since the imaging unit 3 can hardly move in the direction opposite to the arrow E from the state shown in FIG. 5, the following two methods are used.

(I) The top plate 2a of the table body 2 is indicated by an arrow E.
Move in the direction. In this case, for the subject being treated,
Various measuring instruments are set, and there is a risk that they will come off when the subject is moved.

(Ii) Ask the subject to change the positions of the feet and head on the top plate 2a. In this case, the burden on the subject is large. When the table body 2 is tilted up and down in the F direction, the cassette ring 7 interferes with the floor. Therefore, as the table body 2 rotates, the photographing unit 3 must be pulled upward to avoid interference with the floor. Is complicated and the mechanism becomes large.

The present invention has been made in view of the above problems, and an object thereof is to provide a large slider movable range, a wide diagnostic range without moving a subject, and a compact X-axis device. To provide line television.

[0009]

According to a first aspect of the present invention for solving the above-mentioned problems, a table main body provided with a top plate on which a subject rests, and movable along the longitudinal direction of the table main body. , A tube that is arranged above the top plate and irradiates the subject with X-rays on the top plate, and is arranged below the top plate, and an X-ray imaging sheet is set. A sheet setting section and a photographing section provided with a solid-state detector provided below the X-ray film setting section, wherein the tube of the photographing section, the X-ray photographing sheet-setting section and the solid-state detector are substantially in the same straight line. It is arranged on the line.

[0010]

In the X-ray television according to the first aspect of the present invention, since the tube of the photographing section, the X-ray film setting section and the solid state detector are arranged so as to be substantially on the same straight line, movement of the photographing section is possible. The width in the direction can be narrowed, and the moving range of the imaging unit becomes large.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of the first embodiment of the present invention, and FIG. 2 is a left side view of FIG. In the figure, reference numeral 11 is a base, and 12 is a table body provided with a top plate 12a on which a subject is placed and which is arranged so as to be able to be tilted with respect to the base 11.

Reference numeral 13 is a photographing section provided movably along the table body 12. A tube 14 that radiates X-rays to the subject placed on the table body 12 is provided above the imaging unit 13. The imaging unit 13 is also provided with a solid-state detector 15 that faces the tube 14 via the table body 12.

The solid-state detector 15 will be described with reference to FIG. In the figure, reference numeral 15a is a base plate, and a group of photoelectric conversion elements 15b in an array is provided on the base plate 15a. The photoelectric conversion elements 15b are arranged in a horizontal direction (X) and a vertical direction (Y).
The selection (address) line is connected. Further, on the photoelectric conversion element 15b, a scintillator 15c for converting X-rays into visible rays is laminated and arranged.
Also, 15d is a horizontal (X) to which a horizontal selection line is connected.
A directional scanning signal generation circuit, 15d is a vertical (Y) signal generation circuit to which vertical selection lines are connected.

A photoelectric conversion element (1 pixel) 15b at a point where both scanning pulses are scanned by scanning in the X and Y directions by scanning pulses generated by the horizontal scanning signal generating circuit 15d and the horizontal scanning signal generating circuit 15e. Is selected and an electric signal corresponding to the optical signal at that point is output.

The thickness of the solid-state detector 15 in the X-ray incident direction is much smaller than that of the conventional II. Below the solid-state detector 15, a cassette sheet (film feeding section) 17 for feeding and discharging an X-ray photographing sheet is provided. The X-ray imaging sheet is fed from the cassette 17 to the X-ray imaging sheet setting unit 18 on the solid-state detector 15 via the sheet path shown by the solid line in FIG. X-ray setting section 18
Then, it is returned to the cassette set 17 via the sheet path shown by the broken line in FIG.

The tube 14, the X-ray imaging sheet setting unit 18, the solid-state detector 15 and the cassette wire 17 of the imaging unit 13 are arranged so as to be substantially on the same straight line.
According to the above configuration, the thickness of the solid-state detector 15 in the X-ray incident direction is much thinner than that of the conventional II.
By using 5, the tube 14, X of the imaging unit 13
The radiographic sheet setting unit 18, the solid state detector 15, and the cassette wire 17 could be arranged so as to be substantially on the same straight line.

Therefore, as shown in FIG. 1, the width in the moving direction of the photographing unit 13 becomes narrow, the moving range of the photographing unit becomes large, and the top plate 12a of the table body 12 moves like the conventional X-ray television. It is possible to capture images from the head to the foot of the subject with the minimum.

When the table main body 12 is tilted up and down, by moving the photographing unit 13 to the center of the table main body 12, the operation for avoiding the interference with the floor as in the conventional X-ray television is small. Therefore, the mechanism is simple and the device is small.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a front view illustrating the second embodiment of the present invention. The same parts as those in FIGS. 1 and 2 are designated by the same reference numerals, and the description thereof will be omitted. This example and the first
The difference from the above embodiment is that there is no cassettereth. Therefore, in the X-ray television of this embodiment, the operator
An X-ray imaging sheet setting unit 18 is inserted with a cassette on which an X-ray imaging sheet such as a line film or a stimulable (stimulable) phosphor sheet is set, and imaging is performed.

According to this structure, in addition to the effect of the first embodiment, the height a of the top plate 12a can be lowered, so that an up-and-down mechanism is provided and the height of the top plate 12a can be changed. It is also possible to do.

[0021]

As described above, according to the present invention, the tube of the imaging section, the X-ray imaging sheet setting section and the solid state detector are arranged so as to be substantially on the same straight line, so that the imaging section can be moved. It is possible to realize an X-ray television having a large range, a wide diagnostic range without moving the subject, and a compact device.

[Brief description of drawings]

FIG. 1 is a front configuration diagram of a first embodiment of the present invention.

2 is a left side configuration diagram in FIG. 1. FIG.

FIG. 3 is an explanatory diagram of a solid-state detector.

FIG. 4 is a front configuration diagram of a second embodiment.

FIG. 5 is a front configuration diagram of a conventional X-ray television.

FIG. 6 is a left side configuration diagram in FIG.

[Explanation of symbols]

 12 table body 12a top plate 13 imaging unit 14 tube 15 solid state detector 17 cassette terre 18 X-ray imaging sheet setting unit

Claims (1)

[Claims] 1. A table main body (12) provided with a top plate (12a) on which a subject rests, and a table main body (12) movable along the longitudinal direction of the table main body (12), The top plate (12
a) A tube (1) that irradiates the subject above with X-rays.
4), an X-ray imaging sheet setting section (18) arranged below the top plate (12a) for setting an X-ray imaging sheet, and a solid provided below the X-ray film setting section (18) An imaging unit (13) having a detector (15), wherein the tube (14) of the imaging unit, the X-ray imaging sheet setting unit (18), and the solid state detector (15) are substantially on the same straight line. An X-ray television characterized by being installed.