JPH1170102A - X-ray diagnostic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the free degree of positioning for an X-ray diagnostic device. SOLUTION: The device is provided with a first X-ray generating part 1 for picking-up an overtube image, the second X-ray generating part 2 for picking-up an undertube image and an S-ray detecting part 3 provided with a small and light solid detector 12 which is arranged in a freely extending/ contracting supporter part hung from a ceiling toward a floor. The solid detector 12 are supported by a center rotary arm 11 enabling center rotating with its center axis as a center and a freely extending/contraccting offset rotary arm 10 enabling offset rotating independent of the center rotation. Therefore, setting is correctly and quickly executed for various kinds of positioning such as the vertical, horizontal or diagonal one, etc., with respect to an examinee on a bad owing to respective rotary and extending/contracting operations and also to being light and small. Then, the respective X-ray generating parts are properly used in accordance with the positioning of the solid detector 12 so as to pickup an image.

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, and more particularly, to an X-ray generating section and an X-ray detecting section provided independently of each other. The present invention relates to an X-ray diagnostic apparatus capable of immediately responding to imaging in various positionings.

[0002]

2. Description of the Related Art In a conventional circulatory organ holding apparatus, which is an X-ray diagnostic apparatus, an X-ray generating section and an X-ray detecting section are fixedly held at opposite ends of an arm. The arm shape is roughly divided into a “C type” having a substantially C shape and a “U type” having a substantially U shape. From the viewpoint of increasing the efficiency of three-dimensional positioning, At present, many C-shaped arms are provided.

FIG. 5 shows an external view of a circulatory organ holding device having this C-shaped arm. As shown in FIG. 5, the circulatory organ holding device has a rail holding portion 100 that movably holds the circulatory organ holding device along a rail attached to the ceiling, and a support column that can be rotated by the rail holding portion 100. Column 101 held by the
The holder 102 has a main shaft rotatably held on the side opposite to the rail holding portion, and a C-shaped arm 103 slidably held by the holder 102.

At both ends of the C-shaped arm 103, an X-ray generation unit 104 and an X-ray detection unit 105 (image intensifier, optical system, TV camera, etc.) are provided so as to face each other. The movement of the X-ray detection unit 105 is controlled to move up and down (toward the X-ray generation unit 104 and to the side opposite to the X-ray generation unit 104) by the movement mechanism 106.

In such a circulatory organ holding apparatus, the X-ray generating section 104 and the X-ray detecting section 105 provided at both ends of the C-shaped arm 103 are heavy, and the C-shaped arm 103 has an asymmetric shape. Therefore, it is difficult to balance rotation such as slide and main rotation. For this reason, a dedicated handle, a joystick, or the like is operated to electrically control the positioning.

On the other hand, there is known a separation and holding device capable of performing biplane photographing using a BC arm shown in FIG. 6 and a U-shaped arm shown in FIG.

In FIG. 6, the BC arm has a rail holding section 120 which allows the X-ray generating section 124 to move along a rail attached to the ceiling, and one end thereof is stretchably held by the rail holding section 120. X-ray generator 1 at the other end
24 is provided with a telescopic arm 121. The BC arm includes a rail holding unit 122 that allows the X-ray detection unit 125 to be independently movable with respect to the X-ray generation unit 124 along a rail attached to the ceiling, and one end of the rail holding unit 122. And an extendable arm 123 provided with an X-ray detector 125 at the other end.

In FIG. 7, a U-shaped arm has a column 1 held by a rail holding portion that movably holds the U-shaped arm along a rail attached to a ceiling.
10 and the main shaft 1
And a U-shaped arm 111 held rotatably about 27. At both ends of the U-shaped arm 111, an X-ray generator 112 and an X-ray detector 113 are provided so as to face each other.

In the separation and holding device having such arms, the BC arm can only move the head of the X-ray generation unit 124 (or the X-ray detection unit 125) by swinging, horizontal movement, and vertical movement. As shown, it is mainly used for lateral photography as a lateral positioner for biplane photography,
Since the U-shaped arm can rotate around the body axis of the subject by rotation, each arm is used in accordance with the purpose of imaging (imaging site) such as used for imaging at a desired angle. Shooting is performed while using differently.

[0010]

The conventional circulatory organ holding device has an X-ray detecting section (II, optical system, TV camera, etc.) and an X-ray generating section 104 at both ends of the C-shaped arm 103. Is provided, the rotational inertia is large, the C-shaped arm 103 has an asymmetric shape, and it is difficult to balance the rotation. Therefore, the positioning control is performed electrically. In order to set the desired positioning, it is necessary to judge what kind of operation must be performed. Skills are required to accurately perform the operation corresponding to each positioning, and fine adjustment is difficult It was difficult to accurately control the intended positioning.

The problem is that a counterweight (weight) is provided on the C-arm 103 or the like to balance the rotation so that manual operation is possible, and fine adjustment of positioning is performed by this manual operation. It is conceivable to solve the problem, but in this case, since the rotational inertia increases, there is a concern that it is also difficult to accurately set the desired positioning.

In order to facilitate manual operation, a solid-state detector (plane detector) formed by a plurality of solid-state imaging devices is replaced by an X-ray instead of an image intensifier (II). It is conceivable to reduce the size and weight by using the detection unit. However, when this flat detector is used, the weight balance with the X-ray generation unit 104 side is broken, and the rotational moment of inertia becomes significantly larger than the current state. ,
Again, there is a concern that control becomes difficult.

On the other hand, a conventional separation and holding device having a BC arm and a U-shaped arm is an X-ray generation section 124 of a BC arm.
(Or the X-ray detection unit 125) can only perform the swinging, horizontal movement, and vertical movement, so that the X-ray generation unit 124 (or the X-ray detection unit) cannot be arranged below the subject. However, there is a problem that the applicable range is extremely limited (limited to use as a lateral positioner for biplane shooting).

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an X-ray diagnostic apparatus capable of accurately and easily performing various positionings and capable of responding to various imaging ranges. I do.

[0015]

An X-ray diagnostic apparatus according to the present invention includes, as means for solving the above-mentioned problems, an X-ray generating section for irradiating an examinee with X-rays; A solid-state detection unit formed of a plurality of solid-state detection elements for detecting X-rays emitted from the X-ray generation unit, and movably provided independently of the X-ray generation unit;

Since such an X-ray diagnostic apparatus is provided with a solid-state detection unit which is smaller and lighter than the image intensifier, it can be easily held. Therefore, the inertia of each movable unit of the X-ray diagnostic apparatus can be reduced, and the X-ray generation unit and the solid state detection unit can be moved independently.
By compensating for the influence of the weight of each movable part, it is possible to accurately and quickly set various positions. Therefore, it is possible to correspond to various photographing ranges.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the X-ray diagnostic apparatus according to the present invention will be described below in detail with reference to the drawings.

The X-ray diagnostic apparatus according to the present invention can be applied to a separation and holding apparatus as shown in FIG. The separation and holding device according to the embodiment of the present invention is for overtube imaging (imaging: includes both fluoroscopy performed by exposing a small amount of X-rays and imaging performed by exposing a large amount of X-rays. ) First X
A X-ray generation unit 1, a second X-ray generation unit 2 for imaging an undertube, and an X-ray detection unit 3 that captures X-ray information by emitting X-rays from each of the X-ray generation units 2 and 3. And a bed 16 on which a subject to be imaged is placed.

The first X-ray generation unit 1 for imaging the overtube includes a telescopic column 6, an X-ray generator 7 a provided at one end (end on the floor side) of the column 6, It comprises a ceiling base 5 connected to the other end (an end on the ceiling side) of the column 6. The ceiling base 5 is movable along a rail 4 provided on the ceiling, so that the entire first X-ray generation unit 1 is movable along the rail 4.

The column 6 is provided with a spring balancer, which is mechanically compensated for gravity.

That is, the X-ray generator 7 a is held in a state of being suspended from the ceiling by the column 6, and is further movable along the rails 4. It is relatively movable.

The second X-ray generating section 2 for imaging the undertube includes a column 19a fixed to the floor and a column 1
A holder 19b rotatably provided on the support 9a, a quarter-circular slide arm 18 slidably provided on the holder 19b, and an X-ray generator 7b fixed to one end of the slide arm 18. Have been. By such holding, the X-ray generator 7b can be positioned at any position on the lower half spherical surface of the subject (bed 16).

The bed 16 is supported at one end in the longitudinal direction by a column 15 which can be extended and contracted. This support part 15
It is connected to a ceiling base 14 that is movable along the rail 4. For this reason, the bed 16 is also movable along the rail 4.

The X-ray detector 3 is formed by two-dimensionally arranging a telescopic support 9 connected to a ceiling base 8 movable along a rail 4 and a plurality of solid-state imaging devices. The solid state detector 12 has a detection surface 12a on one side.

The solid state detector 12 is connected to a center rotating arm 11 provided so as to extend the central axis. To the end of the center rotating arm 11 opposite to the end connected to the solid state detector 12, an extendable and contractible offset rotating arm 10 is connected so as to be orthogonal to the center rotating arm 11. The opposite end of the offset rotary arm 10 connected to the center rotary arm 11 is connected to the support 9.

With such a configuration, the X-ray detector 3
Is movable along the rail 4, the center rotation arm 11 enables center rotation about the center axis of the solid state detector 12, and the offset rotation arm 10 enables offset rotation having an offset with respect to the center rotation. ing. Then, the offset rotating arm 10
Is stretchable, so that the solid state detector 12 can be set at various positions in the up, down, left, and right directions of the subject placed on the bed 16.

It should be noted that only the offset rotary arm 10 can be extended and contracted.
1 may also be flexible. Thereby, the solid state detector 1
2 can further increase the degree of freedom of positioning.

Next, handles 17 are provided on both sides in the longitudinal direction of the solid state detector 12 to be gripped when an operator manually sets the positioning of the solid state detector 12. Each handle 17 is provided with a clutch control switch 13 at a position where it can be turned on and off with the thumb of the right hand when the operator holds the handle with the right hand, for example.

The clutch control switch 13 is for controlling connection and disconnection of a clutch for fixing the X-ray detector 3 to the set positioning. The clutch of each section is disengaged and manual positioning control becomes possible. By turning off this clutch control switch 13, the clutch of each movable section is connected, and the X-ray detection section 3 is fixed by the positioning at that time. It has become.

Here, the solid state detector 12 senses visible light converted from X-ray information by a phosphor (phosphor 35 in FIG. 3) described later, for example, as shown in FIG. 2, and detects this visible light. A pixel X that forms a charge corresponding to the amount of incident light, and a thin film transistor 22 (TFT) used as a switch that reads out the charge stored in the pixel 21
The line detecting elements are two-dimensionally arranged in an array in a column direction and a row direction.

Each pixel 21 is composed of a photodiode that senses visible light and forms a charge according to the amount of incident light, and a capacitor (storage capacitor) that accumulates the charge formed by the photodiode.

The connection point between the cathode terminal of the photodiode and one terminal of the storage capacitor is connected to the power supply line 25-.
1, 25-2.
Vn), and the connection point between the anode terminal of the photodiode and the other terminal of the storage capacitor is connected to each TFT 2
2 source terminals.

The gate terminal of the TFT 22 is commonly connected to each row by each of the read lines 23-1, 23-2,..., 23-n, and is connected to each line output terminal of the line drive unit 24.

The drain terminal of the TFT 22 is commonly connected to each column by vertical transfer lines 26-1, 26-2,..., 26-n, and each switch 28 of the multiplexer 28 is connected via a readout amplifier 27. -1,28-2
... 28-n.

When reading is to be performed, the control unit 20 transmits the read lines 23-1 and 23-2 via the line driving unit 24.
.. 23-n by sequentially turning on the TFTs 22 of the read lines 23-1, 23-2,.
Are sequentially selected and controlled, and the switches 28 of the multiplexer 28 are sequentially selected so as to sequentially select the stored charges supplied to the multiplexer 28 for each line.
-1, 28-2... 28-n are turned on / off. Thereby, a fluoroscopic image signal or a photographed image signal can be output through the output terminal 29.

More specifically, the cross section of the X-ray detecting element is as shown in FIG.
On the upper TFT region 32, the pixel 21 is formed on the pixel region 33 (PD region) on the support 31.

In the TFT region 32, a gate electrode 43 is formed on the support 31 and SiNx is formed thereon.
The layer 38 is laminated. On this SiNx layer 38,
An n-Si layer 47 is laminated, and n + a-S
Through the i-layer 44, the drain electrode 45 is
Source electrodes 46 are formed via the Si layer 44, respectively. A first polyimide resin layer 37 is laminated on the TFT region 32, and a metal electrode 49 is provided on the first polyimide resin layer 37.

In the PD region 33, a transparent electrode 42 connected to the SiNx layer 38 and the source electrode 44 is laminated on the support 31. On this transparent electrode 42, n
A + a-Si layer 39, an ia-Si layer 40, a p + a-Si layer 41, and a transparent electrode 38 are sequentially stacked, thereby forming a photodiode having a Pin structure.

Next, the TFT region 32 and the PD region 33
A second polyimide resin layer 48 is laminated thereon, and the transparent protective film 3 is formed on the second polyimide resin layer 48.
6 are stacked. On the transparent protective film 36, the aforementioned X
A phosphor 35 for converting line information into visible light is provided, and a light reflection layer 34 for reflecting visible light and capturing only X-ray information is provided on the phosphor 35.

In the solid state detector 12 having such a configuration, when X-ray information formed by irradiating the subject with X-rays is incident, the visible light is reflected by the light reflecting layer 34, Only the line information is transmitted through the light reflecting layer 34 to the phosphor 35
And is converted into visible light. This visible light passes through the transparent protective film 36 and the second polyimide resin layer 48, and is received by the photodiode responsive to the visible light via the transparent electrode 38.

This photodiode forms a charge corresponding to the visible light and supplies the charge to the storage capacitor. As a result, the electric charge (imaging signal) corresponding to the X-ray information is stored in the storage capacitor. The charges accumulated in the storage capacitors are read out by the readout control of the control unit 20 as described above, and readout lines 23-1, 23-2,.
The data is read out for each line via 23-n and supplied to a monitor device or the like via the multiplexer 18 and the output terminal 29.

Next, when such a separation and holding device is used with an undertube, the subject is placed on the bed 16 as shown in FIG. The movement of the detection unit 3 is controlled.

The movement of the X-ray detector 3 is performed by moving the ceiling base 8
The X-ray detector 3 can be moved along the rails 4 by controlling the rotation of the rollers provided in the X-ray detector by a motor and a transmission system.

A column 9 is rotatably attached to the ceiling base 8 via a bearing or the like, and the solid state detector 12 is rotatable about a vertical axis. This rotation is performed by transmitting the power of a motor using a chain sprocket or the like.

The strut portion 9 is vertically expandable and contractable, for example, by a bellows configuration or a divided structure such as a hanging rod, and holds a stroke position controlled by a spring balancer or the like provided therein. It has become.

The offset rotary arm 10 attached to the support 9 is driven by a drive system to control the solid state detector 12.
Is controlled to expand and contract in the horizontal and lateral directions (the direction in which the offset rotary arm 10 extends).

The solid state detector 12 is capable of center rotation by a center rotation arm 11 provided along the center axis thereof and offset rotation by the offset rotation arm 10.

These rotations are performed, for example, by a direct drive motor (DD) provided with a load holding bearing.
Motor). D. by offset rotation D
The unbalance torque of the motor (the torque due to the center of gravity being displaced from the center of rotation (offset rotating arm 10) by the offset rotation of the solid state detector 12) is determined by the rotation by the center rotation if the rotation position of the solid state detector 12 by the offset rotation is determined. It can be uniquely calculated regardless of the position. Therefore, this D. D motor is a solid state detector 1
Control is performed so as to cancel the unbalance torque according to the rotational position of the second position. Thereby, the rotation balance of the solid state detector 12 can be maintained.

When the rotational balance is obtained electrically as described above, D.E. When the power supplied to the D motor is turned off, the brake may be released. Therefore, this D. The D motor is provided with an off-lock brake that holds the rotational position of the solid state detector 12 when the power is turned off. Thus, even when the power is turned off, the rotational position of the solid state detector 12 at that time is maintained, so that the inconvenience of the brake being released can be prevented.

D. Since the D motor can directly connect to the load, the D. By using a D motor, a power transmission system can be dispensed with and highly accurate positioning can be achieved.

The center axis of the center rotation and the center axis of the offset rotation are orthogonal to each other (because they have an offset).
And each arm 10, 11 does not interfere (contact),
Either rotation can allow 360 ° rotation.

Further, since the center rotation arm 11 is provided along the center axis of the solid state detector 12 (because it is offsetless), the rotation balance can be maintained and the power system can be reduced. Can be.

As described above, the solid state detector 12 is provided with a D.O. The gravity is electrically compensated by a D motor or the like.

Here, the positioning of the solid state detector 12 can be adjusted by manual operation. Such manual control has two modes, and the mode switching is performed based on the operator's will. Assuming that the two modes are an A mode and a B mode, in the A mode, the positioning is performed as desired by the operator. That is, the route is not restricted at all and based on the operator's feeling,
Speedy positioning to the target position is possible.

Specifically, the solid state detector 12 is provided with a handle 17, and the operator grips the handle 17 and turns on the clutch control switch 13. When the clutch control switch 13 is turned on, the clutches of the respective movable parts are disengaged, and manual positioning control becomes possible.

The rotation axis of the offset rotary arm 10 and the center rotary arm 11 is provided with a force detecting device composed of, for example, a strain gauge, and the like. Is determined. When the operator applies an operating force to the solid state detector 12 by manual operation, the solid state detector 3 can be rotated in accordance with the operating force while being connected to the power source, and the solid state detector 3 can be operated by the operator. Can be controlled.

The operator manually controls the movement of the solid state detector 12 to a desired location and turns off the clutch control switch 13. As a result, the clutches of the movable parts are connected, and the X-ray detection unit 3 is fixed by the positioning at that time.

On the other hand, in the B mode, the SID (Source
Each angle setting (CRA / CAU, RAO / LAO) is performed while e-Image Distance is kept constant. The SID is input by the operator via an input unit such as a numeric keypad provided on a console or the like. For example,
When the SID is set to 100 cm, the solid state detector 12
Attempting to position at a position other than the ID of 100 cm becomes impossible. That is, the solid state detector 12 can move only on the spherical surface with the isocenter as the center,
The manual operation is performed with the SID kept constant.

When the clutch control switch 13 is turned on in the B mode, the combination of the parameters of the angle and the position of each movable portion where the SID does not change is calculated (or calculated in advance). Each drive motor is controlled so that it cannot move to a position other than the position determined by the combination, that is, the position where the SID does not change.

The switching between the A mode and the B mode is as follows.
This is performed using a switch on the operation desk. Also, the current mode and SI
D is displayed not only on the console but also on a monitor or a display.

When the movement control of the solid state detector 12 is switched from manual control to automatic control, the SID at the time of manual control is
Can be operated while holding.

Next, each movable portion of the solid state detector 12 is provided with a position detection sensor such as a potentiometer. When the movement of the solid state detector 12 is controlled automatically or manually, an under Second X for tube imaging
The line generator 2 is automatically arranged to face the detection surface 12a of the solid-state detector 12 whose movement is controlled.

Specifically, for example, when the solid state detector 12 is manually moved, its position and orientation are instantaneously changed to six-dimensional (position in a three-dimensional coordinate space and rotation with respect to their axes) by a position detection sensor such as a potentiometer. Angle). Based on this detected data,
The data processing device calculates the coordinates of the position where the X-ray generator 7b should be moved every moment. Based on the calculated position coordinate data, the movable portion, that is, the holder 19b and the slide arm 18 are electrically controlled to rotate and slide, respectively, and the X-ray generator 7b is positioned. As a specific driving member, a motor as an electric motor and a chain belt as power transmission are used.

As described above, the slide arm 18 is
It has a four-circle shape. Therefore, the second X-ray generator 2
The range in which the X-rays can be exposed is the range on the lower half spherical surface of the subject, and imaging with the undertube is possible.

Next, when such a separating and holding device is used as an overtube, the subject is placed on the bed 16 as shown in FIG. 16 (the back side of the subject in FIG. 4). Then, the positioning of the solid-state detector 12 is manually or automatically controlled to a position where the X-ray information at a desired position can be captured by using the above-described offset rotation and center rotation.

Since the support portion 9 is extendable and retractable, the solid state detector 12 can be easily arranged on the back side of the bed 16. Further, as described above, since the offset rotation and the center rotation can be independently rotated by 360 °, the solid-state detector 12 can be set to various positionings.

When the positioning of the solid state detector 12 is controlled as described above, the rollers provided on the ceiling base 5 of the first X-ray generation unit 1, which is the X-ray generation unit for overtube imaging, rotate the motor and the chain. The rotation is controlled by a transmission system such as a sprocket or the like, and the solid detector 12 is automatically opposed to the detection surface 12a of the solid-state detector 12 whose positioning is controlled. Thus, imaging using the overtube can be performed.

As is apparent from the above description, the separation and holding apparatus according to the present embodiment includes the first X-ray generation unit 1 for imaging the overtube and the second X-ray generation unit 1 for imaging the undertube.
An X-ray detector 3 having a line generator 2 and a solid state detector 12 formed of a plurality of solid state detectors is provided so as to be independently movable. The solid state detector 12 has a center rotation of 360 ° around the center axis of the solid state detector 12 and a 360 ° rotation having an offset in the center rotation.
Offset rotation is possible.

For this reason, it is possible to quickly and accurately perform over-tube imaging and under-tube imaging corresponding to various positionings, thereby expanding clinical applications.

Further, since the positioning of the solid state detector 12 can be controlled manually, fine positioning control according to the operator's intention can be performed. Burden can be reduced.

Further, since the first and second X-ray generators 1 and 2 and the X-ray detector 3 are provided independently of each other, a C for holding the X-ray detector and the X-ray generator in opposition is provided. The need for an arm or the like can be eliminated, so that mechanical interference can be avoided, a work space can be secured, and the field of view can be expanded.

Further, for example, in the case of a patient carried by an ambulance, it is often difficult to know what is wrong due to unconsciousness or the like. In such a case, first, fluoroscopy and imaging are performed to identify the cause and make a treatment plan. Although it is necessary, this fluoroscopy and photography take time and can be fatal. However, since the separation and holding device can enable quick and accurate fluoroscopy and imaging by various positionings as described above, the patient carried by the ambulance can be moved to the examination room with the stretcher alone. It is possible to immediately perform fluoroscopy and imaging by accurate positioning by the manual operation or the like. Therefore, a subsequent treatment plan can be made immediately, which can greatly contribute to lifesaving.

In the above description of the embodiment, the detection surface 12a of the solid state detector 12 is provided on only one side, but this detection surface is provided on both sides of the solid state detector 12. You may. This can save the trouble of rotating the detection surface of the solid state detector 12 at the time of transition between fluoroscopy and imaging from the overtube to the undertube, and at the time of transition between fluoroscopy and imaging from the undertube to the overtube. Can greatly contribute to quick fluoroscopy and photography.

Finally, the above embodiment is only one example of the present invention. Therefore, the present invention is not limited to this embodiment, and various changes can be made according to the design and the like as long as the technical idea according to the present invention is not deviated. is there.

[0075]

The X-ray diagnostic apparatus according to the present invention can perform various positioning accurately and easily.
It can correspond to various photographing ranges.

[Brief description of the drawings]

FIG. 1 is a diagram for explaining a separation and holding device according to an embodiment to which an X-ray diagnostic apparatus according to the present invention is applied.

FIG. 2 is a diagram showing a configuration of a solid state detector provided in the separation and holding device of the embodiment.

FIG. 3 is a sectional view of the solid state detector.

FIG. 4 is a diagram for explaining a case where the separation and holding device of the embodiment is used in an overtube configuration.

FIG. 5 is a view showing an appearance of a circulatory organ holding device which is one of the conventional X-ray diagnostic apparatuses.

FIG. 6 is a diagram showing an appearance of a separation and holding device including a BC arm, which is one of conventional X-ray diagnostic apparatuses.

FIG. 7 is a view showing the appearance of a U-shaped arm used together with the BC arm.

FIG. 8 is a diagram illustrating a state in which biplane imaging is performed together with a U-shaped arm using the separation and holding device as a lateral positioner.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... 1st X-ray generation part (for overtube), 2 ... 2nd X-ray generation part (for undertube), 3 ... X-ray detection part, 4 ... Rail, 5, 8, 14 ... Ceiling base, 6, 9,
Reference numeral 15: Support portion, 7a, 7b: X-ray generator, 10: Offset rotation arm, 11: Center rotation arm, 12: Solid detector, 13: Clutch control switch, 16: Bed, 1
7 Handle, 18 Slide arm

Claims (14)

[Claims] 1. An X-ray generation unit comprising: an X-ray generation unit configured to emit X-rays to a subject; and a plurality of solid state detection elements configured to detect the X-rays emitted from the X-ray generation unit. An X-ray diagnostic apparatus comprising: a solid state detection unit movably provided independently of the unit. 2. The X-ray generation unit has at least one of an under-tube X-ray generation unit that enables imaging with an undertube and an overtube X-ray generation unit that enables imaging with an overtube. The X-ray diagnostic apparatus according to claim 1, wherein: 3. The solid state detection unit is held so as to be capable of independently rotating about its two horizontal axes, and at least one of the two rotations is:
2. The X-ray diagnostic apparatus according to claim 1, further comprising: a holding mechanism that holds the solid state detection unit so that the rotation axis is offset from a center axis of the solid state detection unit. 4. A first holding member, one end of which is connected to the solid state detection unit, which is rotatable along a central axis of the solid state detection unit, wherein the first holding member is formed. A second holding member having one end connected to the other end of the first holding member so as to be substantially perpendicular to the direction, and capable of performing an offset rotation about a rotation axis deviating from a center axis of the solid state detection unit; The X-ray diagnostic apparatus according to claim 3, comprising: 5. The X-ray diagnostic apparatus according to claim 4, wherein at least the second holding member is expandable and contractable along a forming direction thereof. 6. The holding mechanism includes: a direct drive motor provided with a load holding bearing that enables each rotation control; and a clutch that electrically holds each positioning by each rotation control. 4. The X-ray diagnostic apparatus according to claim 3, wherein the direct drive motor performs an off-lock brake operation when the power is turned off and the positioning is fixed at the position when the power is turned off. 7. The X-ray according to claim 3, wherein the X-ray generation unit is controlled to be positioned at a position opposite to the solid state detection unit when the solid state detection unit is controlled. Diagnostic device. 8. The X-ray according to claim 6, wherein the X-ray generation unit is controlled to be positioned at a position facing the solid-state detection unit when the solid-state detection unit is controlled. Diagnostic device. 9. The solid state detecting section has a clutch control switch for manually turning on and off a clutch of the holding mechanism, and the X-ray generating section is configured to manually control a position of the solid state detecting section. 9. The X-ray diagnostic apparatus according to claim 8, wherein positioning control is performed according to the following. 10. The X-ray diagnostic apparatus according to claim 9, wherein the X-ray generation unit is controlled for positioning while keeping the SID constant. 11. The X-ray diagnostic apparatus according to claim 10, further comprising means for setting an SID. 12. The X according to claim 11, further comprising SID display means for displaying the set SID.
X-ray diagnostic device. 13. The X-ray diagnostic apparatus according to claim 10, further comprising mode display means for displaying a positioning mode in which the SID is kept constant. 14. The X-ray diagnostic apparatus according to claim 7, wherein the X-ray generator supports the X-ray generator by an arc-shaped arm that is substantially a quarter of a circle.