JPH06269446A - X-ray radiographing apparatus - Google Patents

Abstract

PURPOSE:To eliminate the damage of an input/output cable connected to a separately provided controller or the like regardless of the frequent turn of a top plate. CONSTITUTION:This X-ray radiographing apparatus is provided with a supporting platen, top plate 1 pivotally supported by this supporting platen, X-ray tube device 4 supported by this top plate 1 and video apparatus arranged on the side of a face opposite to the-side of the X-ray tube device 4 of the top plate 1 and can turn the top plate 1 with the support shaft of the supporting platen. This apparatus is provided with a rotary connector, which one side is composed of a fixer and other side is composed of a rotator, between the supporting shaft of the supporting platen and the top plate 1 and the input/ output terminals of the X-ray tube device 4 and the video apparatus are passed through the rotary connector 20 and taken out of the supporting platen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray imaging apparatus,
In particular, the present invention relates to an X-ray imaging apparatus that includes a top plate that is pivotally supported by a support base and that is rotatable about a support shaft of the support base.

[0002]

2. Description of the Related Art In this type of X-ray imaging apparatus, an X-ray tube device disposed above a top plate is supported by the top plate, and an image device for detecting X-rays is provided on the back surface of the top plate. It is arranged.

As a result, the X-rays from the X-ray tube device pass through the subject placed on the top plate and the top plate and are input to the image device. The output of the image device causes the X-ray of the subject to be detected. An X-ray fluoroscopic image can be obtained.

The driving of the X-ray tube device and the image device is controlled by a control device provided separately from the X-ray imaging device. Therefore, between the X-ray imaging device and the control device. Control signals and the like are exchanged via input / output cables.

Then, in the conventional X-ray imaging apparatus,
The input / output terminals of the X-ray tube device and the video device are taken out from the top plate (actually, the top plate support frame that supports this top plate), and the input / output cable connected to the control device is taken out from this top plate. It was

[0006]

However, in the X-ray imaging apparatus constructed as described above, the input / output cables of the portion taken out from the top plate together with the frequent rotation of the top plate are also included. It moved, and eventually it was damaged and connected to disconnection.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a control device and the like separately provided regardless of the frequent rotation of the top plate. An object of the present invention is to provide an X-ray imaging apparatus capable of eliminating damage to an input / output cable connected between the two.

[0008]

In order to achieve such an object, the present invention basically comprises a support base, a top plate axially supported by the support base, and the top plate. An X-ray tube device supported on the top plate, and an image device arranged on a surface side of the top plate opposite to the X-ray tube device side, and the top plate rotates about a support shaft of the support base. In a movable X-ray imaging apparatus, a rotary contactor, one of which is a stator and the other of which is a rotor, is provided between a support shaft of the support base and a top plate, and input / output terminals of the X-ray tube device and the image device. Is taken out from the support base via the rotary contactor.

[0009]

The X-ray radiographing apparatus constructed as described above is particularly provided with a rotary contactor, one of which is a stator and the other of which is a rotor, between the support shaft and the top plate. .

For this reason, even if the top plate rotates, the input / output terminals of the X-ray imaging apparatus and the video device supported by the top plate can be taken out from the support table that does not move at all, regardless of this rotation. Like

Therefore, even if the top plate is rotated, the input / output cables of the portion taken out from the support will not move together.

Therefore, regardless of the frequent rotation of the top plate, it is possible to eliminate damage to the input / output cable connected to a separately provided control device or the like.

[0013]

2 is an external view showing an embodiment of an X-ray imaging apparatus according to the present invention.

In FIG. 1, there is a top plate 1 on which a subject (not shown) is placed, and the top plate 1 is supported by a top plate support frame 2.

The top plate support frame 2 is pivotally supported on a leg portion 5 serving as a support via a rotary shaft 7. The top plate 1 can be rotated about the rotary shaft 7 by a top plate driving unit (not shown), and its longitudinal surface can be tilted.

An X-ray tube device 4 is arranged above the top plate 1, and the X-ray tube device 4 is supported by a top plate support frame 2 via an X-ray tube support 3.

Further, an image device 6 is arranged on the back surface of the top plate supporting frame 2, and the image device 6 can input X-rays from the X-ray tube device 4 obtained through a subject.

The video device 6 is a concept that includes a film, a video device driving unit for moving the film to a required position, an image intensifier used for X-ray fluoroscopy, and the like. .

Then, there is a control device 10 provided separately from the X-ray imaging device, and the control device 10 via the input / output cable 8 controls the top plate drive section, the image device 6, of the X-ray imaging device. A control signal is sent to the image device driving section, the X-ray tube device 4, or other mechanism.

Here, in particular, in this embodiment, the input / output cable 8 connected to the control device 10 in the X-ray imaging apparatus is taken out from the support base which is the leg portion 5 thereof.

FIG. 1 is a partial cross-sectional view of the X-ray imaging apparatus as viewed from the longitudinal direction of the top plate 1.

Input / output cable 8 taken out from the leg portion 5
Is the rotor 11 of the rotary contactor 20 that is composed of a rotor 11 attached to one end of a rotary shaft 7 that rotates the top plate 1 and a stator 12 attached to the top plate 1 side. It is connected.

Here, for example, the rotor 11 is constructed as shown in FIG. 4, and the stator 12 is constructed as shown in FIG.

That is, the rotor 11 has a disk shape whose center is fixed to the rotary shaft 7 and is concentric with the rotary shaft 7, and has a circular arc shape concentric with the rotary shaft 7 on the surface opposite to the rotary shaft 7. 5 conductive contacts 11a, 11b, 11c, 11
d and 11e are formed at equal intervals in the radial direction.

On the other hand, there is a stator 12 arranged to face the surface of the rotor 11 on which the contact is formed, and the surface of the stator 12 on the contact side has a circular shape concentric with the center thereof. Conductive layers 12a, 12b, 12c, 12d, 1
2e are formed at equal intervals in the radial direction.

That is, the rotors 1 arranged to face each other
1 and the stator 12 have their respective conductive contacts 11a, 11a when the rotor 11 rotates about its rotation axis 7.
b, 11c, 11d, and 11e are the stator 12 respectively.
The conductive layers 12a, 12b, 12c, 12d, and 12e are rotated in a state where they are always in contact with each other.

FIG. 3 is an explanatory diagram showing the exchange of signals between the control device 10 and each device on the side of the X-ray imaging device via the rotary contactor 20 having such a structure.

In the figure, the top plate driving unit is the control unit 1.
It is controlled by a control signal from 0 through the conductive contact 11a on the rotor 11 side and the conductive layer 12a on the stator 12 side. The image device 6 includes a conductive contact 11 b and a stator 12 on the rotor 11 side from the control device 10.
It is controlled by a control signal via the side conductive layer 12b. The video device driving unit includes a conductive contact 11c and a stator 12 on the rotor 11 side from the control device 10.
It is controlled by a control signal via the side conductive layer 12c. The X-ray tube device 4 is controlled by a control signal from the control device 10 via the conductive contact 11d on the rotor 11 side and the conductive layer 12d on the stator 12 side. The other mechanism is the control device 1.
It is controlled by a control signal from 0 through the conductive contact 11e on the rotor 11 side and the conductive layer 12e on the stator 12 side.

In the X-ray imaging apparatus constructed as in the above-mentioned embodiment, one is a rotor 11 and the other is a stator 12 between the spindle (rotating shaft 7) of the leg 5 and the top plate 1. It is equipped with a rotary contactor 20 consisting of.

Therefore, even if the top plate 1 rotates, the input / output terminals of the X-ray imaging apparatus 4 and the image device 6 supported by the top plate 1 do not move at all, regardless of this rotation. It can be taken out from the leg 5.

Therefore, even if the top plate 1 is rotated,
The part of the input / output cable 8 taken out from the leg 5 will not move together.

Therefore, regardless of the frequent rotation of the top plate 1, it is possible to eliminate the damage of the input / output cable 8 connected to the separately provided control device 10 and the like.

In the embodiment described above, the rotary contactor 2
Although one of the rotors is provided with 0 on one end of the rotary shaft 7, the present invention is not limited to this, and it may be provided on the surface of a flange provided around the rotary shaft. It is needless to say that the same effect can be obtained even if it is provided on the surface.

Further, in the above-mentioned embodiment, the rotary contactor 2
No. 0, physical contact is made through a contactor, but the physical contact is not limited to such physical contact, and for example, an electric contact is mediated by a magnetic force or the like. Needless to say, the same purpose can be achieved by using.

[0035]

As is apparent from the above description,
According to the X-ray imaging apparatus of the present invention, it is possible to prevent damage to the input / output cable connected to a separately provided control device or the like, regardless of the frequent rotation of the top plate.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of an X-ray imaging apparatus according to the present invention.

FIG. 2 is an overall configuration diagram showing an embodiment of an X-ray imaging apparatus according to the present invention.

FIG. 3 is an explanatory diagram showing an embodiment of the X-ray imaging apparatus according to the present invention, and is an explanatory diagram showing a connection with a control device.

FIG. 4 is an explanatory diagram of a rotor used in an embodiment of the X-ray imaging apparatus according to the present invention.

FIG. 5 is an explanatory diagram of a stator used in an embodiment of the X-ray imaging apparatus according to the present invention.

[Explanation of symbols]

 1 Top Plate 4 X-ray Tube Device 5 Legs 6 Imaging Device 11 Rotor 12 Stator 20 Rotating Contactor

Claims (1)

[Claims] 1. A support base, a top plate axially supported by the support base and supported, an X-ray tube device supported by the top plate, and a side of the top plate opposite to the X-ray tube device side. In the X-ray imaging apparatus, wherein the top plate is rotatable around a support shaft of the support base, an image device arranged on the surface side of the support base is provided. An X-ray tube device and a video device, wherein input and output terminals of the X-ray tube device and the image device are taken out from the support base via the rotary contactor, the rotary contactor having a stator and the other being a rotor. X-ray equipment.