JPH074357B2 - X-ray fluoroscopy stand - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is capable of rotating a main body frame provided with an X-ray tube and an image intensifier (hereinafter referred to as II) on a base, around a horizontal axis. And I. I. The present invention relates to a fluoroscopic imaging table which is provided above the table and provided with a top plate.

[0002]

2. Description of the Related Art A fluoroscopic imaging stand of this kind is known from I.S. I. Is a so-called over-tube tube type fluoroscopic imaging table provided with a top plate positioned above the table, and when a subject boarded on this fluoroscopic imaging table, the top plate is normally placed in an upright position, The subject rides on a step connected to the tabletop by himself, and then the tabletop is tilted to a horizontal position to perform the inspection.

However, when the subject is a seriously ill patient, an elderly person, a sick person or a handicapped person and it is difficult for the subject to stand on the step and stand on his own, the tabletop should be in a horizontal position. , The caregiver was holding the subject and transferring from the top of the stretcher to the top.

[0004]

However, in this type of perspective imaging stand, the I.D. I. Further, an optical system and a television camera are connected therebelow. Therefore, in order to secure the installation space,
The height of the top plate from the floor surface in the horizontal position cannot be lowered, and the placement level of the subject must be higher than the bed surface of the stretcher, and the caregiver is forced to use the strecher for the subject. -There was a drawback that it was difficult to transfer from the top to the top. In addition, there is a drawback that the subject is in a state of being pulled up to a high position and is forced to bear a burden such as a feeling of pressure.

The present invention has been made in view of the above circumstances and has been proposed by I.K. I. Focusing on the vertically long shape configuration of the optical system and the television camera connected thereto, and I. I.
By changing the posture of the tabletop, the tabletop can be displaced to a lower position so that a caregiver can easily transfer a subject such as a seriously ill patient or a sick person from the stretcher to the tabletop. The purpose is to make it possible for the examiner to perform a transfer while the burden of pressure is small.

[0006]

In order to achieve such an object, the present invention provides an X-ray tube and an I.D. I. And a main body frame provided with are rotatably provided around a horizontal axis, and the I. I. In a perspective imaging stand with a top plate positioned in front of the main body frame, the main body frame is provided on the base so as to be vertically displaceable, and the main body frame is provided.
I. I. Is pivotally attached to the frame via two arms rotatably attached to the frame.

[0007]

According to the construction of the present invention, when the top plate of the fluoroscopic imaging table is in the horizontal position, the I.D. I. And an optical system and an X-ray television camera connected to the lower side of the I.V. I. After raising the overall lower surface level to increase the distance from the floor surface, lower the main body frame so that the height of the top plate from the floor surface is lower than the bed surface of the stretcher and the test is performed. It is possible to make it easier for people to switch. In this state, after changing the subject, the tabletop is raised again and the I.V.
I. The subject can be positioned at a normal fluoroscopic imaging position by rotationally displacing and returning the position to the original position.

After completion of the photographing, the stretcher is brought close to the top plate as it is, and the stretcher at a lower position than the top position of the top plate at the normal fluoroscopic photographing position.
The subject can be placed on top.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall front view of the fluoroscopic imaging stand according to the present invention in an imaging use state, and FIG. I. 3 is an overall side view of FIG. 1 in a state in which the posture is changed.

In these figures, reference numeral 1 denotes a base installed on the floor, and a vertically movable frame 2 is provided on the base 1 so as to be vertically displaceable, and the vertically movable frame 2 is vertically movable. An extending rack gear 2a is attached, and on the other hand, a base 1 is attached with a pinion gear 1a driven and rotated by an electric motor (not shown) capable of rotating in the forward and reverse directions. Movable frame 2
Is configured so that it can be vertically displaced with respect to the base 1.

A pinion gear 2b, which is driven and rotated by a vertically reversible electric motor (not shown), on the vertically movable frame 2.
And a main body rotation frame 3 provided with a fan-shaped rack gear that engages with the pinion gear 2b.
Is rotatably mounted around a horizontal axis P1 so that the main body rotating frame 3 can be driven and rotated in accordance with the driving rotation of the pinion gear 2b.

The frame 3 for rotating the main body has a rotary shaft core P1.
A main body frame 4 is attached to the main body frame 4 so as to be movable in a horizontal direction orthogonal to
Top plate 6, X-ray tube 7 and I.V. I. A fluoroscopic imaging device such as 8 is provided, and these are integrally rotated together with the main body frame 4 around the rotation axis P1 thereof, and can be moved along the longitudinal direction of the top plate 6. . In addition, I. I.
8 is provided with an optical system 9 and an X-ray television camera 10 in a state of protruding downward.

Further, a boss 4 provided on the body frame 4
a and 4b, I.D. I. Drive support arms 11 and I. I. A support arm 12 is provided, and each of these is provided with a horizontal rotation axis (fulcrum) P parallel to the rotation axis P1.
2 and P3 are rotatably pivoted about the two I.S.
I. Drive support arms 11 and I. I. Support arm 12
According to I. I. 8 is rotatably pivotally held at points a and b. The rotary shaft cores P2 and P
The installation locations of the bosses 4a and 4b on the main body frame where the 3 are provided are I. I. When 8 rotates, it is set to a position where it does not interfere with related equipment such as the quick-shooting frame 5 arranged around it.

At this time, if the positions of the fulcrums P2, P3 and the pivot points a, b are properly set, the I.D. I. 8 can be changed from the vertical (vertical) posture of FIG. 1 to the horizontal (horizontal) posture of FIG.

A forward / reverse mode is provided on the main body frame 4.
And a pinion gear 14 for rotating the arm 11 that is driven and rotated by the rotor 13, and a fan-shaped rack gear 15 that meshes with the pinion gear 14 for rotating the arm 11 is referred to as the I.D. I. It is attached to the drive support arm 11 and is driven by the drive rotation of the pinion gear 14 for rotating the arm 11. I. The drive support arm 11 is constructed so that it can be driven and rotated around the rotation axis P2. This fulcrum P2, P3, pivot point a,
b, I. I. Drive support arms 11 and I. I. In the interlocking structure of the support arm 12, I. I. The drive supporting arm 11 is rotated by the arm rotating pinion gear 14 driven by the motor 13, so that the I.D. I. Drive support
11 and I.M. I. The support arm 12 cooperates to generate an I.I.
I. Drive support arms 11 and I. I. Support arm 12
I. is rotatably held. I. 8 is configured to be rotatable on a plane orthogonal to the rotation axis P1 by about 90 ° with two points of the rotation axes P2 and P3 as rotation axes.

With the above-described structure, the arm rotation pinion gear 14 is driven from the normal use state of the fluoroscopic stand shown in FIG. I. As shown in FIG. 2, 8 is rotated clockwise about the rotation axis P2 by about 90 °. By doing this, I.D. I. 8 falls sideways, and the optical system 9 and the X-ray television camera 10 project laterally. I. 8, the amount of downward protrusion of the
I. The lowermost level of 8 can be increased by the difference (AB) between the vertical length A and the horizontal length B, and the distance from the floor becomes large. In this state, by moving the vertically movable frame 2 downward, the top plate 6 is lowered together with the main body frame 4 by a height corresponding to the difference (AB), and is lowered from the high position to the low position. , The subject on the stretcher can be easily placed on the top plate 6.

After the replacement, the top plate 6 is raised together with the main body frame 4 and, at the same time, the I.D. I. It is possible to rotate 8 to return it to the original use state of the perspective table. When the subject on the top plate 6 is placed on the stretcher after the imaging is finished, the stretcher is moved closer to the lower position from the high position in the same manner as described above while the top plate 6 is positioned at the fluoroscopic imaging position. The subject on the top plate 6 can be easily placed on the stretcher by lowering it.

On the other hand, with a rotary shaft center at one location, the I.I. I. Is fixed and the support arm is driven to drive the I.D. I. Although it is conceivable to rotate the I.8, in this structure I.8. I. -If the arm is rotated by 90 ° or more in order to increase the floor distance, the I. I. Since the lower end surface of the I hits the top plate, the arm could not be rotated more than 90 ° and the I. I. -The floor distance cannot be increased, but I.I. I. By attaching the I. to the main body frame and setting the fulcrum and the pivot point to the positions shown in the figure, the I.I.
I. Since the lower end can roll over without hitting the top plate, I.
I. -The floor distance can be increased, and the top plate can be lowered accordingly.

[0019]

As is apparent from the above description, according to the perspective photographing stand according to the present invention, the optical system and the television camera attached to the image intensifier project downward in the perspective photographing state. However, paying attention to the shape that the horizontal length is shorter than the vertical length as a whole, the image intensifier is laid down and rotated to the posture, and the bottom level and the floor surface. Since the tabletop can be lowered by the difference between the vertical length and the horizontal length described above, the position of the tabletop with respect to the bed surface of the Stretcher can be set larger than in the normal shooting state. It can be changed to a higher position or a lower position, and when the subject is placed on the top plate from the stretcher, or when the subject is placed on the top plate from the top plate. , It is possible to transfer the subject from the high position to the low position, and for caregivers, etc., it is possible to easily transfer the subject such as a seriously ill patient or a sick person, and the burden given to the subject. I can relax now.

[Brief description of drawings]

FIG. 1 is a front view of a perspective imaging stand according to an embodiment of the present invention in a use state.

FIG. 2 is a front view showing a state in which the image intensifier is changed to a horizontal posture.

FIG. 3 is a side view of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base 2 ... Vertically movable frame 3 ... Main body rotation frame 4 ... Main body frame 5 ... Quick shooting frame 6 ... Top plate 7 ... X-ray tube 8 ... Image intensifier (II) 9 …Optical system
10 ... TV camera 11 ... I. I. Drive support arm 12 ... I. I. Support arm 13 Motor 14 Arm rotation pinion gear 15 Fan-shaped rack gears 4a, 4b I. I. Supporting boss P2 ... I. I. Drive arm rotation axis core (fulcrum) P3 ... I. I. Support arm rotation axis core (fulcrum) a ... I. I. Drive arm pivot point b ... I. I. Support arm pivot point

Claims (1)

[Claims] 1. A main body frame provided with an X-ray tube and an image intensifier is rotatably provided around a horizontal axis of a base, and is positioned above the image intensifier to provide a top plate. In the perspective imaging table provided with, the main body frame is provided on the base so as to be vertically displaceable,
The main body frame is provided with two arms rotatable about respective fulcrums, and the arms are used to pivotally hold the image intensifier, and the fulcrums and the arms are connected to each other. An X-ray fluoroscopic imaging table, characterized in that a pivotal position with respect to the image intensifier is set to a position where the image intensifier rotates from a vertical state to a horizontal state by rotation of the arm.