JPH05146425A - Moving type viewing/photographing device - Google Patents

Abstract

PURPOSE:To provide the moving type viewing/photographing device which is free from danger and can enlarge a rotational range of a C arm, and also, eliminates the need of rotating it around a vertical axis Z1. CONSTITUTION:The moving type viewing/photographing device is constituted so that a base part 2 in which an X-ray generating device is contained and a rotary mechanism 3 are placed on a cart 1 in which wheels are installed, and also, in the base part, a guide 5 in which a C arm 4 to which an X-ray tube device and an image receiving device are attached is arranged so as to be slidable is installed, and the whole of the C arm 4, the base part 2 and the rotary mechanism 3 itself, etc., turns around a rotary shaft 8 in the vicinity of a vertical line for passing through the centroid of all of them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile fluoroscopic imaging apparatus used mainly for X-ray fluoroscopic imaging in an operating room in a hospital.

[0002]

2. Description of the Related Art When operating a head, for example, in an operating room, a mobile fluoroscopic imaging apparatus as shown in FIG. 5 is used for diagnosis. In this fluoroscopy apparatus, a carriage 11 having wheels and moving, and a base 12 accommodating an X-ray generator are integrally formed, and the X-ray tube device 6 and an image receiving device are further provided on the base 12. A guide 5 to which a C arm 4 in which the image system of the apparatus 7 is arranged on the same axis is attached. The C-arm 4 is slidable on the guide 5 around a constant circumference, and the guide 5 is rotatable about the shaft 13 of the base portion 12 and moved vertically and horizontally. Is held so that The shaded area in FIG. 4, which is a plan view, shows an image capturing range in which the image system of the conventional mobile fluoroscopic image capturing apparatus can cover.

[0003]

In the conventional mobile fluoroscopic imaging apparatus, it is necessary to move the entire apparatus as shown in FIG. 6 when setting the image system in the operative field or retracting it from the operative field during surgery. However, it requires a large amount of movement, and since there are many machines and cables in the operating room at this time, they must also be moved, which not only complicates the operation but also keeps cleanliness. In some cases, it will be damaged. Also, as shown in FIG. 5, a method of largely rotating the C-arm 4 around the vertical axis Z ₁ may be considered, but in this case, the center of gravity of the entire apparatus may protrude from the trolley portion 11 and thus the apparatus may fall. There is. The present invention has been made in view of the above problems, and the object thereof is to increase the rotation range of the C arm without danger of falling and to rotate around the vertical axis Z ₁ as in the conventional case. An object is to provide a mobile fluoroscopic imaging device that does not need to be rotated.

[0004]

That is, according to the present invention, in a mobile fluoroscopic imaging apparatus, a pedestal portion accommodating an X-ray generator and a rotating mechanism are placed on a dolly having wheels mounted thereon, and further, the above-mentioned base is provided. A guide in which a C arm having an X-ray tube device and an image receiving device is slidably arranged is installed on the base portion, and the C arm is provided around the rotation axis near the vertical line passing through the center of gravity of the whole. It is characterized in that the base and the rotating mechanism itself are configured to rotate as a whole.

[0005]

The operation of the mobile fluoroscopic imaging device according to the present invention as the above means will be described with reference to the reference numerals in the accompanying drawings. When the X-ray tube device 6 and the image receiving device 7 are approached to the operative field by the above-mentioned means, the C arm 4 together with the base 2 on the dolly 1 is rotated around O, which is the position where the vertical axis Z ₂ passes. It can be rotated with a good balance. Therefore, not only the approach to the operative field is possible by slightly moving the trolley part 1 back and forth, but also the operative field can be easily retracted.
Further, even if the C-arm 4 to which the X-ray tube device 6 and the image receiving device 7 are attached is slid along the guide 5 and the base 2 and the like are rotated, a stable state is obtained. Further, by rotating the C arm 4 around O, the area where the image system can be covered is greatly expanded.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are side views of a mobile fluoroscopic imaging apparatus according to the present invention. Wheel 1 for truck 1
Although a and 1b are mounted and movable, a pedestal portion 2 accommodating an X-ray generator and a rotation mechanism 3 described later are mounted on the trolley 1. The C-arm 4 to which the X-ray tube device 6 and the image receiving device 7 are attached is slidably arranged on the guide 5, but the guide 5 is rotatable around the shaft 13 and is vertically and forwardly and backwardly moved. Can be moved.

Next, in the above structure, the center of gravity of the base 2 to which the C arm 4 and the guide 5 are attached and the rotation mechanism 3 are located on the vertical axis Z ₂ . A rotary shaft 8 is attached to the rotary mechanism 3 at a position along the vertical axis Z ₂ so that the entire base 2 etc. having the C-arm 4 and the guide 5 attached thereto can rotate around the rotary shaft 8. It is configured. A gear transmission, a chain and a sprocket, etc. can be considered as the rotating mechanism 3, and each can be configured manually or electrically.
In this way, if the center of gravity of the entire fluoroscopy apparatus is set on the vertical axis Z ₂ , the C-arm 4 around the rotation axis 8 can be obtained.
The balance between the base part 2 and the base part 2 is improved, and it is stable during rotation. Although 9 is a shaft for supporting the C-arm 4, the guide 5, etc., the shaft 9 does not have to rotate around the axis Z ₁ .

The mobile fluoroscopic imaging apparatus according to the present invention has the above-mentioned configuration, and is a plan view of the fluoroscopic imaging apparatus when the X-ray tube device 6 and the image receiving device 7 are approached to the operative field. As shown in FIG. 1, it is possible to rotate the C arm 4 and the base 2 on the carriage 1 in a well-balanced manner around O, which is a position where the vertical axis Z ₂ passes. Therefore, as shown in FIG. 3, by slightly moving the carriage 1 back and forth, the approach to the surgical field can be made.
Not only is it possible to move, but it is also possible to easily evacuate from the surgical field. Further, even if the C-arm 4 having the X-ray tube device 6 and the image receiving device 7 attached thereto is slid along the guide 5 and the base 2 or the like is rotated, it is still in a stable state. Further, as shown in FIG. 1, by rotating the C arm 4 around O, the area where the image system can be covered is greatly expanded.

[0009]

Since the movable fluoroscopic imaging apparatus according to the present invention is constructed as described above in detail, the rotation range of the C-arm on the trolley part can be widened greatly and the risk of tipping over can be increased. There is no. Further, the amount of movement of the trolley portion during the approach to the operative field and the withdrawal from the operative field is small, and it is no longer necessary to rotate the C-arm around the vertical axis Z ₁ as in the conventional case. Further, even when the base of the operating table interferes with the trolley part, the trolley part can be released at a slight angle so that the operation is easy and various unique effects are obtained.

[0010]

[Brief description of drawings]

FIG. 1 is a plan view of a mobile fluoroscopic imaging apparatus according to the present invention.

FIG. 2 is a side view of the mobile fluoroscopic imaging apparatus according to the present invention.

FIG. 3 is a plan view of the movable fluoroscopic imaging apparatus according to the present invention, showing the range of movement when approaching or retracting the operating table of the operating table.

FIG. 4 is a plan view of a conventional mobile fluoroscopic imaging device,
The following shows the shooting range that the image system can cover.

FIG. 5 is a side view of a conventional mobile fluoroscopic imaging device.

FIG. 6 is a plan view of a conventional mobile fluoroscopic imaging device,
It is a figure which shows the movement range at the time of approaching or retracting to the operative field of an operating table.

[Explanation of symbols]

 1 Car part 2 Base part 3 Rotating mechanism 4 C arm 5 Guide 6 X-ray tube device 7 Image receiving device 8 Rotating shaft

Claims (1)

[Claims] 1. A base unit having an X-ray generator stored therein and a rotating mechanism are mounted on a carriage having wheels mounted thereon, and further, an X-ray tube device and an image receiving device are attached to the base unit. A guide in which the arm is slidably arranged is installed so that the C arm, the base portion, the rotation mechanism itself, and the like rotate about the rotation axis near the vertical line passing through the center of gravity of the whole arm. A mobile fluoroscopic imaging device characterized by being configured.