JPH06303526A - X-ray diagnostic device - Google Patents

Abstract

PURPOSE:To provide the X-ray diagnostic device capable of driving an arm in the breadthwise direction of a top plate with a compact mechanism. CONSTITUTION:The X-ray diagnostic device is provided with a top plate 4 capable of supporting a body to be examined, a C arm 5 which holds an 1-ray tube 1 and an image intensifier 2 in positions facing each other with the body to be examined between them, a lengthwise-direction driving mechanism 26 which can drive the C arm 5 in the lengthwise direction of the top plate 4, and a rotating and driving mechanism 27 which can rotate and drive the C arm around the axial line in the breadthwise direction of the top plate 4. A breadthwise direction driving mechanism 29 which can drive the C arm in the breadthwise direction of the top plate 4 is arranged between the top plate 4 and the rotating and driving mechanism 27.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an X-ray diagnostic apparatus,
In particular, the present invention relates to an X-ray diagnostic apparatus in which an image system is held by a C arm or the like.

[0002]

2. Description of the Related Art An X-ray diagnostic apparatus of a type in which an X-ray tube and an image intensifier are held at both ends of an arm is
By rotating the arm in an arc direction or moving it horizontally along the longitudinal direction of the tabletop, it becomes possible to take an X-ray image of a desired region from the head of the subject to the lower limbs from the desired direction. There is.

FIG. 3 is a perspective view showing a conventional X-ray diagnostic apparatus.

In the X-ray diagnostic apparatus shown in FIG. 3 (a), the X-ray tube 1 and the image intensifier 2 are attached to a pedestal 3 via a predetermined supporting member, and the test object lying on the top plate 4 is inspected. X-ray of the person.

Further, the X-ray diagnostic apparatus shown in FIG. 3 (b) is
The X-ray tube 1 and the image intensifier 2 are held at both ends of the C arm 5, and the C arm 5 is attached to the pedestal 3 so as to be movable along the longitudinal direction of the top plate 4.

Here, when it is desired to move the imaging region in the lateral direction of the subject, that is, in the lateral direction of the top plate 4, the X-ray tube 1, the image intensifier 2, and the top plate 4 are relatively moved in the lateral direction. Although it is necessary to do so, in both types shown in FIG. 3, the top plate 4 is moved by the lateral driving mechanism 6.

[0007]

However, if the subject is provided with an endoscope, a catheter, a puncture needle, or the like, or if a device or a surgical instrument is placed on the top, the top is driven. Since there is a risk of damaging the body of the subject or damaging the equipment, it is necessary to be extremely careful when driving the top plate, which causes problems such as prolonged inspection time.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an X-ray diagnostic apparatus capable of driving an arm in a lateral direction of a top plate with a compact mechanism.

[0009]

In order to achieve the above object, the X-ray diagnostic apparatus of the present invention has a top plate capable of supporting a subject, an X-ray tube and an image intensity as described in claim 1. An X-ray diagnostic apparatus including an arm that holds a fire at opposing positions sandwiching the subject, the X-ray diagnostic apparatus including a lateral direction drive mechanism capable of driving the arm along the lateral direction of the top plate. .

Further, according to the X-ray diagnostic apparatus of the present invention, as described in claim 4, the top plate capable of supporting the subject, the X-ray tube and the image intensifier are held at opposing positions sandwiching the subject. In the X-ray diagnostic apparatus including the above-mentioned arm and a longitudinal drive mechanism capable of driving the arm along the longitudinal direction of the top plate, a short axis capable of driving the arm along the lateral direction of the top plate. A manual drive mechanism is arranged between the top plate and the longitudinal drive mechanism.

Further, according to the X-ray diagnostic apparatus of the present invention, as described in claim 5, the top plate capable of supporting the subject, the X-ray tube and the image intensifier are held at opposing positions sandwiching the subject. X, a rotary drive mechanism capable of driving the arm along the longitudinal direction of the top plate, and a rotary drive mechanism capable of rotationally driving the arm around the lateral axis of the top plate. In the line diagnostic device, a lateral direction drive mechanism capable of driving the arm along the lateral direction of the top plate is arranged between the top plate and the rotary drive mechanism.

[0012]

In the X-ray diagnostic apparatus of the present invention described in claim 1, when the lateral drive mechanism is operated, the arm holding the image intensifier and the X-ray tube runs along the lateral direction of the top plate. The top plate does not move. Therefore, it is possible to avoid a decrease in safety due to driving the top plate.

In the X-ray diagnostic apparatus of the present invention as defined in claim 4, when the lateral drive mechanism is operated, the arm holding the image intensifier and the X-ray tube runs along the lateral direction of the top plate. The top plate does not move. Further, since the short-side driving mechanism is arranged between the top plate and the long-side driving mechanism, it is not necessary to previously secure an escape space for the short-side movement outside the long-side driving mechanism.

Therefore, the device can be made compact while avoiding a decrease in safety caused by driving the top plate.

In the X-ray diagnostic apparatus of the present invention as defined in claim 5, when the lateral drive mechanism is operated, the arm holding the image intensifier and the X-ray tube runs along the lateral direction of the top plate. The top plate does not move. Further, since the short-side direction drive mechanism is arranged between the top plate and the rotary drive mechanism, a space for the rotary drive mechanism to escape during the short-side direction movement is secured outside the rotary drive mechanism in advance. There is no need.

Therefore, the device can be made compact while avoiding a decrease in safety due to driving the top plate.

[0017]

Embodiments of the X-ray diagnostic apparatus of the present invention will be described below with reference to the accompanying drawings. It should be noted that parts that are substantially the same as those of the conventional technique are given the same reference numerals and description thereof is omitted.

FIG. 1 is a perspective view of the X-ray diagnostic apparatus of this embodiment.

In the X-ray diagnostic apparatus of this embodiment, a top plate 4 capable of supporting a subject (not shown), an X-ray tube 1 and an image intensifier 2 are held at opposing positions sandwiching the subject. And a C-arm 5 that has been used.

On the output side of the image intensifier 2, a TV camera 21 for converting an optical signal which is an output signal into an image signal is provided.

The X-ray diagnostic apparatus according to the present embodiment includes a longitudinal drive mechanism 26 capable of driving the C-arm 5 along the longitudinal direction of the table 4, and the C-arm 5 around the axis of the table 4 in the lateral direction ( Hereinafter, the rotation drive mechanism 27 that can be rotationally driven in the CRA / CAU direction and the C arm 5 in the arc direction (hereinafter, RAO).
A rotation drive mechanism 2 capable of being rotationally driven in the / LAO direction).
8 and a lateral direction drive mechanism 29 capable of driving the C-arm 5 along the lateral direction of the top plate 4.

The longitudinal drive mechanism 26 includes a moving support 24.
Is mounted on the longitudinal movement guide 25 so as to be horizontally movable, and the rotary drive mechanism 27 includes an L-shaped rotary support portion 2.
3 is rotatably attached to the movable support portion 24 in the CRA / CAU direction, and the lateral direction drive mechanism 29 attaches the arm holding portion 22 to the rotational support portion 23 movably in the lateral direction. In the rotary drive mechanism 28, the C arm 5 is attached to the arm holding portion 22 so as to be rotatable in the RAO / LAO directions.

The lateral driving mechanism 29 is arranged between the top plate 4 and the rotary driving mechanism 27.

FIG. 2 is an enlarged detailed view of the lateral drive mechanism 29.

As can be seen from the figure, a lateral direction guide 33 is provided on the upright portion 32 of the rotation support portion 23, and the arm holding portion 22 moves along the lateral direction guide 33. Has become.

In the upright portion 32, a motor 34,
It has a built-in pulley 35 and sprocket 36,
The sprocket 36 is fixed to a mounting member 37 built in the arm holding portion 22.

In the X-ray diagnostic apparatus of the present invention, when the motor 34 is operated, the rotational driving force of the motor 34 becomes
The lateral direction driving force is transmitted to the arm holding portion 22 via the pulley 35 and the sprocket 36, and the arm holding portion 22 moves along the lateral direction guide 33 on the upright portion 32 in the lateral direction.

When the arm holding portion 22 moves in the lateral direction, the C arms held by the arm holding portion 22 also move in the lateral direction, and the image intensifiers 2 attached to both ends thereof.
And the X-ray tube 1 moves along the lateral direction of the top plate 4.

As described above, in the X-ray diagnostic apparatus of this embodiment, the relative movement of the tabletop and the C-arm in the lateral direction is performed by moving the C-arm, not the tabletop. There is no relative movement between the catheter or the like inserted into the body of the subject and the subject, and therefore the subject is not injured. Further, there is no possibility that the top plate interferes with the surrounding objects. Further, even when the medical instrument is placed on the top plate, there is no possibility that the medical instrument will be dropped or damaged.

Thus, an operator such as a doctor can move the X-ray imaging region in the lateral direction without paying special attention.

Therefore, the operator can concentrate on the X-ray diagnosis, the examination time can be shortened, and the burden on the operator can be reduced.

Further, in the X-ray diagnostic apparatus of this embodiment, since the lateral direction drive mechanism 29 is arranged between the top plate 4 and the rotary drive mechanism 27, an escape space for lateral direction movement is provided. It is not necessary to secure it outside the longitudinal drive mechanism 26 in advance.

Therefore, the entire X-ray diagnostic apparatus can be made compact.

In the C-arm type X-ray diagnostic apparatus, the space between the top plate and the longitudinal drive mechanism is the space for accommodating the X-ray tube and the image intensifier as the C-arm moves in the RAO / LAO direction. Although it has been conventionally required as an access space to the operator's top plate, the X-ray diagnostic apparatus of this embodiment further effectively utilizes the conventional required space without newly securing an extra space, The top plate can be driven in the lateral direction.

In the above embodiment, the lateral driving mechanism is arranged between the top plate and the rotary driving mechanism.
It may be arranged at any position between the top plate and the longitudinal drive mechanism. Further, in the above-mentioned embodiment, the explanation has been made assuming that the rotation drive mechanism in the CRA / CAU direction is provided, but this is omitted and the short-side direction drive mechanism is arranged between the top plate and the long-side direction drive mechanism. May be.

Further, in the above embodiment, the arrangement position of the lateral drive mechanism is limited to a predetermined range, but the X-ray diagnostic apparatus or the X-ray tube or image in which the top plate can be raised and lowered. In a so-called over-tube type X-ray diagnostic apparatus in which the intensifiers are respectively held above and below the top plate, the lateral driving mechanism may be arranged at any position in the apparatus.

With this structure, the arm holding the image intensifier and the X-ray tube moves along the lateral direction of the top plate, and the top plate does not move. Therefore, it is possible to avoid a decrease in safety due to driving the top plate.

Further, in the above-mentioned embodiment, the top plate is not moved in the lateral direction, but in some cases, a mechanism for driving the top plate in the lateral direction may be provided. In this case,
Consider the movement speed or movement range of the tabletop so as not to reduce the safety of the subject and cause interference with the surroundings, and supplement the insufficient movement range with the short-side movement of the C-arm. Good to do.

[0039]

As described above, in the X-ray diagnostic apparatus of the present invention, the top plate capable of supporting the subject, the X-ray tube, and the image intensifier are held at opposing positions sandwiching the subject. In the X-ray diagnostic apparatus including the above, since the arm is provided with the lateral direction drive mechanism capable of driving the arm along the lateral direction of the top plate, the arm can be driven in the lateral direction of the top plate. It is possible to avoid a decrease in safety due to driving the top plate.

In the X-ray diagnostic apparatus of the present invention, a top plate capable of supporting a subject, an arm holding an X-ray tube and an image intensifier at opposing positions sandwiching the subject, and the arm In an X-ray diagnostic apparatus having a longitudinal drive mechanism that can be driven along the longitudinal direction of the top plate,
Since the lateral direction drive mechanism capable of driving the arm along the lateral direction of the top plate is arranged between the top plate and the longitudinal direction drive mechanism, in addition to the above effects, the entire device It can be made compact.

In the X-ray diagnostic apparatus of the present invention, the top plate capable of supporting the subject, the arm that holds the X-ray tube and the image intensifier at the opposite positions sandwiching the subject, and the arm are An X provided with a longitudinal drive mechanism that can be driven along the longitudinal direction of the top plate, and a rotation drive mechanism that can rotationally drive the arm around the transverse axis of the top plate.
In the line diagnostic device, since a short-side direction drive mechanism capable of driving the arm along the short-side direction of the top plate is arranged between the top plate and the rotation drive mechanism, the same effect can be obtained. You can

[Brief description of drawings]

FIG. 1 is an overall perspective view of an X-ray diagnostic apparatus according to this embodiment.

FIG. 2 is a perspective view of a lateral drive mechanism provided in the X-ray diagnostic apparatus of this embodiment.

FIG. 3 is a perspective view of a conventional X-ray diagnostic apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 X-ray tube 2 Image intensifier 3 Frame 4 Top plate 5 C arm 22 Arm holding part 23 Rotation support part 24 Movement support part 25 Longitudinal movement guide 26 Longitudinal drive mechanism 27 Rotational drive mechanism 28 Rotational drive mechanism 29 Short Hand drive mechanism

Claims (5)

[Claims] 1. An X-ray diagnostic apparatus comprising: a top plate capable of supporting a subject; and an arm holding an X-ray tube and an image intensifier at opposing positions sandwiching the subject, wherein the arm is the top. An X-ray diagnostic apparatus comprising a lateral direction drive mechanism that can be driven along the lateral direction of a plate. 2. The top plate can be raised and lowered.
The described X-ray diagnostic apparatus. 3. The X-ray diagnostic apparatus according to claim 1, wherein the arm holds the X-ray tube and the image intensifier at positions above and below the top plate, respectively. 4. A top plate capable of supporting a subject, an arm holding an X-ray tube and an image intensifier at opposing positions sandwiching the subject, and the arm driven along the longitudinal direction of the top plate. X with possible longitudinal drive
In the X-ray diagnostic apparatus, a lateral direction drive mechanism capable of driving the arm along the lateral direction of the top plate is arranged between the top plate and the longitudinal direction drive mechanism. Diagnostic device. 5. A top plate capable of supporting a subject, an arm holding an X-ray tube and an image intensifier at opposing positions sandwiching the subject, and the arm driven along the longitudinal direction of the top plate. In an X-ray diagnostic apparatus provided with a possible longitudinal drive mechanism and a rotation drive mechanism capable of rotationally driving the arm around a lateral axis of the tabletop, the arm is arranged along the lateral direction of the tabletop. An X-ray diagnostic apparatus, characterized in that a short-side direction drive mechanism that can be driven by means is arranged between the top plate and the rotation drive mechanism.