JP3441163B2 - X-ray fluoroscope - Google Patents

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 apparatus used for fluoroscopic imaging with X-rays.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6 of Japanese Patent Laid-Open No. 3-158139, this type of X-ray fluoroscopic imaging apparatus is mounted on a bed installed on the floor of an X-ray imaging room. X to the patient
It is provided with an X-ray generating means for irradiating a ray and an X-ray fluoroscopic image forming means facing the X-ray generating means with the bed in between.
These X-ray generating means and X-ray fluoroscopic image forming means are held by a C-shaped holding arm, and by swinging or rotating the holding arm with respect to the bed,
It is possible to perform fluoroscopic imaging from all directions around the patient's heart.

However, in the above-mentioned X-ray fluoroscopic imaging apparatus, since the arm support for swingably and rotatably supporting the holding arm is installed in a fixed state on the floor surface of the X-ray imaging room, for example, for a patient. When performing fluoroscopy from the heart to the lower limbs, it is necessary to perform fluoroscopy while moving the patient, which not only imposes a burden on the patient but also does not allow continuous fluoroscopy. Since the radius of the C-shaped holding arm cannot be increased, fluoroscopic imaging up to the lower limbs was not possible.

In order to solve such a problem, therefore, an X-ray fluoroscopic radiography in which the arm support can be moved in the longitudinal direction and the width direction of the bed by a moving body provided on the ceiling of the X-ray radiographing room. The device is described in JP-A-3-158139.

[0005]

According to such an X-ray fluoroscopic imaging apparatus, since the arm support can be moved in the longitudinal direction and the width direction of the bed, the fluoroscopic imaging from the heart to the lower limbs of the patient can be performed. Although it can be performed continuously, since the arm support, which is a heavy object, is hung from the ceiling of the X-ray imaging room, the ceiling of the X-ray imaging room is reinforced and the moving body is used as a bed. There is a problem in that it is necessary to lay a guide rail or the like for guiding in the longitudinal direction and the width direction on the ceiling part of the X-ray imaging room, and installation of the apparatus requires a great deal of cost.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to perform fluoroscopic imaging from the heart to the lower limbs of a patient without suspending the arm support from the ceiling of the X-ray imaging room. An object of the present invention is to provide an X-ray fluoroscopic imaging apparatus which can be continuously operated without moving the patient.

[0007]

In order to solve the above problems, the present invention provides an X-ray generating means for irradiating a patient on a bed installed on the floor of an X-ray imaging room with X-rays, and X-ray fluoroscopic image forming means facing the X-ray generating means with the bed interposed therebetween, a holding arm for holding the X-ray fluoroscopic image forming means and the X-ray generating means, and the holding arm swaying with respect to the bed. In an X-ray fluoroscopic imaging apparatus having an arm support that is movably and rotatably supported , a rotatable rotary base is provided on a floor surface of the X-ray imaging room, and the X-ray imaging room is provided from an outer edge portion of the rotation base. A horizontal movement mechanism for horizontally moving the arm support body in the width direction of the turning arm with a single drive source is provided at the tip of the turning arm extending on the floor surface.

[0008]

According to the present invention, when the rotary base provided on the floor surface of the X-ray imaging room is rotated in the horizontal direction, the swing arm swings horizontally around the rotary base. When the horizontal movement mechanism provided at the tip of the turning arm is driven, the arm support moves horizontally in the width direction of the turning arm.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be described with reference to. 1 to 9, reference numeral 1 denotes a bed of an X-ray fluoroscopic imaging apparatus according to an embodiment of the present invention, and the bed 1 is installed on a floor F of an X-ray imaging room. Further, 2 is an X-ray generation unit as X-ray generation means for irradiating a patient (not shown) on the bed 1 with X-rays, and 3 is an X-ray fluoroscope that faces the X-ray generation unit 2 with the bed 1 in between. An image intensifier 4 as an image forming means is a C-shaped holding arm for holding the X-ray generation unit 2 and the image intensifier 3. The holding arm 4 can be swung and rotated with respect to the bed 1. The arm support body 5 that supports the holding arm 4 swings the holding arm 4 in the direction of the arrow in the figure.
And a column portion 5b that rotatably supports the arm driving portion 5a around a horizontal axis, and a base portion 5c that vertically supports the column portion 5b.

A rotation base 6 is provided on the floor surface F of the X-ray imaging room as shown in FIG. As shown in FIG. 3, the rotating base 6 is supported by a fixed base 8 embedded in the floor surface F of the X-ray imaging room via a cross roller bearing 7, and the fixed base 8 has a ring shape. Gear 9 is attached. A pinion gear 10 meshes with the gear 9 as shown in FIG. 4, and the driving force of a motor 12 attached to the rotation base 6 is applied to the reduction mechanism 11.
When it is transmitted to the pinion gear 10 via, the rotation base 6 rotates in the horizontal direction.

A swivel arm 13 is provided on the upper surface of the rotary base 6 as shown in FIGS. The swivel arm 13 is for swiveling the arm support 5 in the horizontal direction, and has a tip portion 13a extending from the outer edge of the rotary base 6 to the floor surface of the X-ray imaging room.

At the tip portion 13a of the revolving arm 13,
A horizontal movement mechanism 14 is provided as shown in FIGS. 1 and 2. The horizontal movement mechanism 14 is for horizontally moving the arm support 5 in the width direction of the revolving arm 13.
As shown in FIG. 5, a cross roller bearing 15 is provided at the tip of the revolving arm 13. The cross roller bearing 15 supports the horizontal moving member 16 so as to be horizontally movable in the width direction of the revolving arm 13.
A cross roller bearing 17 for supporting the base portion 5c of the arm support body 5 so as to be horizontally movable in the width direction of the revolving arm 13 is provided at the tip of 6.

As shown in FIG. 6, the horizontal moving mechanism 14 has pulleys 18 and 19 on the lower surface of the horizontal moving member 16. These pulleys 18 and 19 are arranged at intervals in the width direction of the revolving arm 13, and a timing belt, a wire, and
Both ends of the cord-like members 20 and 21 such as chains are fixed to the arm support 5 and the swing arm 13, respectively.

The horizontal moving mechanism 14 has a motor 22 inside the horizontal moving member 16 as shown in FIG. The motor 22 is for driving the pulley 18, and a pulley 23 for transmitting the rotational force of the motor 22 to the drive shaft of the pulley 18 via the timing belt 24 and the pulley 25 is attached to the rotation shaft 22a.

In the X-ray fluoroscopic apparatus according to the embodiment of the present invention, when the rotation base 6 is rotated in the horizontal direction by the motor 12 provided on the rotation base 6, the revolving arm 13 is rotated.
Rotates horizontally around the rotation base, so that the arm support 5 and the holding arm 4 can be moved from the tip end position of the bed 1 to the side position, as shown in FIG.

When the motor 22 of the horizontal moving mechanism 14 is rotationally driven, the pulley 18 provided on the lower surface of the horizontal moving member 16 rotates. Then, when the pulley 18 rotates, the cord-shaped members 20, 2 wound around the pulleys 18, 19
1, the horizontal moving member 16 and the base portion 5c of the arm support 5 horizontally move in the width direction of the revolving arm 13, so that the arm support 5 and the holding arm 4 move in the longitudinal direction of the bed 1 as shown in FIG. Can be made.

Therefore, according to one embodiment of the present invention, X
In the fluoroscopic imaging apparatus, fluoroscopic imaging from the heart to the lower limbs of the patient can be continuously performed without moving the patient without suspending the arm support 5 from the ceiling of the X-ray room.

Further, in the X-ray fluoroscopic imaging apparatus according to the embodiment of the present invention, the horizontal moving mechanism 14 is provided with the horizontal moving member 16.
And the pulleys 18, 1 provided on the horizontal moving member 16.
9 and the rope-shaped members 20 and 21 which are hung around these pulleys 18 and 19 and fixed to the swivel arm 13 and the arm support 5 at both ends.
6 and the arm support 5 can be horizontally moved in the width direction of the revolving arm 13 by one drive source.

[0019]

As described above, according to the present invention, it is possible to move the patient for fluoroscopic imaging from the heart to the lower limbs of the patient without suspending the arm support from the ceiling of the X-ray room. It is possible to provide an X-ray fluoroscopic imaging apparatus that can be continuously performed without using.

[Brief description of drawings]

FIG. 1 is a side view of an X-ray fluoroscopic imaging apparatus according to an embodiment of the present invention.

FIG. 2 is a diagram showing a main part of an X-ray fluoroscopic imaging apparatus according to the embodiment.

FIG. 3 is a diagram showing a main part of the X-ray fluoroscopic imaging apparatus according to the embodiment.

FIG. 4 is a configuration diagram of a drive unit that drives a rotation base of the X-ray fluoroscopic imaging apparatus according to the embodiment.

FIG. 5 is a diagram showing a main part of the X-ray fluoroscopic imaging apparatus according to the embodiment.

FIG. 6 is a diagram showing a main part of the X-ray fluoroscopic imaging apparatus according to the embodiment.

7 is a sectional view taken along the line AA of FIG.

FIG. 8 is an operation explanatory view of the X-ray fluoroscopic imaging apparatus according to the embodiment.

FIG. 9 is an operation explanatory view of the X-ray fluoroscopic imaging apparatus according to the embodiment.

[Explanation of symbols]

1 ... Sleeper 2 ... X-ray generator 3 ... X-ray fluoroscopic image forming means 4 ... Holding arm 5 ... Arm support 6 ... Rotation base 13 ... Swivel arm 14 ... Horizontal movement mechanism 16 ... Horizontal moving member 18, 19 ... Pulley 20, 21 ... Cord-shaped member

Claims (2)

(57) [Claims] 1. An X-ray generating means for irradiating a patient on a bed installed on the floor of an X-ray imaging room with X-rays, and an X-ray fluoroscopic image facing the X-ray generating means across the bed. An X-ray fluoroscope having a forming means, a holding arm for holding the X-ray transparent image forming means and the X-ray generating means, and an arm support body for swingably and rotatably supporting the holding arm with respect to the bed. In the imaging apparatus, a rotatable rotation base is provided on the floor surface of the X-ray imaging room, and the arm support is provided at the tip of a revolving arm extending from the outer edge of the rotation base onto the floor surface of the X-ray imaging room. Single body
An X-ray fluoroscopic imaging apparatus is provided with a horizontal movement mechanism that horizontally moves the swivel arm in the width direction of the drive source . 2. The horizontal movement mechanism includes a horizontal movement member that is provided between the turning arm and the arm support and is horizontally movable in the width direction of the turning arm, and a drive provided on the horizontal movement member. A pulley, a first cord-like member that is wound around the drive pulley and fixed at both ends to the swivel arm and the arm support, a driven pulley that is provided on the horizontal moving member, and a driven pulley that is wound around the driven pulley. The X-ray fluoroscopic imaging apparatus according to claim 1, further comprising a second cord-shaped member whose both ends are fixed to the swivel arm and the arm support.