JP2004181115A - X-ray diagnostic instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an X-ray diagnostic instrument by which an operator definitely identifies a two-way C arm apparatus for biplane fluoroscopic imaging, and safely operates the apparatus. <P>SOLUTION: An image receiving system 7 (a front system) with an X-ray tube 6 and a display light 12 positioned at both the ends of a C arm 11 held from a floor, and an image receiving system 9 (a side system) with an X-ray tube 8 and a display light 13 positioned at both the ends of a C arm 10 held from a ceiling, are set around the lesion of a subject 16 lying on the table 15a of a bed 15. When the operator turns on a front system changeover switch 2 and a side system changeover switch 3 in an operation console 1, the display lights 12 and 13 are turned on. The operator confirms it, performs fluoroscopic imaging, and operates a catheter, while observing fluoroscopic images on a monitor 14 hung from the ceiling. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an X-ray diagnostic apparatus including an X-ray tube apparatus (hereinafter, referred to as an X-ray tube) and an image receiving system that converts an X-ray image formed by passing through a subject into a video signal. The present invention relates to a biplane X-ray diagnostic apparatus which is used for cardiovascular and cranial abdominal lower limb blood vessel imaging and obtains X-ray images in two directions for a subject.
[0002]
[Prior art]
The cardiovascular imaging system and the cranial abdominal lower limb angiography system use one C-arm type, such as different image receiving system sizes (II and flat panel) depending on the imaging site and purpose, and the presence or absence of a film changer. It is difficult to meet both objectives with the holding device. Therefore, an inspection room in which two C-arm type holding devices are combined is configured, and switched or used simultaneously according to the purpose. In cardiovascular imaging, one injection of a contrast agent is performed in the same phase from two directions (simultaneous imaging in two directions: biplane imaging) to reduce the total injection amount of the contrast agent and shorten the examination time. This reduces the burden on the subject.
[0003]
FIG. 3 shows a configuration of a biplane X-ray diagnostic apparatus for cardiovascular imaging. A subject 16 is placed on a top plate 15a of a cantilever holding mechanism on a bed 15 for catheter inspection. The C-arm 11 is supported by a floor-standing holding device or a ceiling traveling holding device installed in the direction of the head of the subject 16, and an image system including an X-ray tube 6 and an image receiving system 27 at both ends of the C-arm 11. (Front system) is attached. The C-arm 10 is supported by a ceiling traveling holding device. At both ends of the C-arm 10, an image system (side system) including an X-ray tube 8 and an image receiving system 29 is attached. The center is set so as to be the heart position of the subject 16 on the table 15a, and X-rays can be emitted from two different directions. The above two sets of support mechanisms can be operated independently or simultaneously to irradiate the subject 16 with X-rays from various angles, and whether one of the support mechanisms is operated simultaneously or not is determined by an operation console. The operation is performed by a front system changeover switch 22 (F) and a side system changeover switch 23 (L) provided in 21, and the operation of each unit is performed by an operation button 24 and an operation button 25. The operator performs the catheter insertion operation while observing the fluoroscopic images from two directions on the observation monitor 14 suspended from the ceiling, which is located near the subject 16.
[0004]
In the above-mentioned apparatus, there is an X-ray diagnostic apparatus capable of performing fluoroscopy in any of two directions and performing imaging while confirming a part and timing in any of the two directions by the fluoroscopy (for example, see Patent Document 1).
The X-ray diagnostic apparatus includes a front image system including the X-ray tube 6 and the image receiving system 27, and a side image system including the X-ray tube 8 and the image receiving system 29. Selective X-ray exposure, select an appropriate video signal with an input selector, convert the selected video signal into a digital signal with an A / D converter, load it into an image memory, and perform D / A conversion The video signal is again converted into an analog video signal by the monitor and displayed on the monitor 14.
[0005]
In cardiovascular imaging, oblique imaging from multiple directions is performed for delineating a coronary artery and diagnosing a morphology of a ventricle, in particular, for examining a congenital cardiovascular abnormality. In the holding device of the C-arm 11 on the floor, RAO (first oblique, right front oblique: right antenna oblique) 110 ° to LAO (second oblique, left front oblique: left antenna oblique) 110 °, CRA (head) Part direction: cranial) 45 ° to CAU (tail direction: caudal) 35 ° can be angled, while LAO 120 ° to 0 ° (front), CRA / CAU 45 ° in the overhead traveling type C arm 10 holding device It is possible to shoot at an angle between them. In this way, images are taken from multiple directions with the C-arm type holding device, and an angle is set so as to be as parallel as possible to the blood vessel running so as to avoid overlapping of the coronary arteries. At this time, if the heart position of the subject 16 is set at the rotation center (isocenter) of the X-ray beams of both the C arms 10 and 11, the rotation of the C arms 10 and 11 allows the heart to be photographed without shifting from the image center. be able to.
[0006]
[Patent Document 1]
JP-A-7-148144 (Page 4, FIG. 1)
[0007]
[Problems to be solved by the invention]
The conventional X-ray diagnostic apparatus is configured as described above, but the two types of support mechanisms support the X-ray tubes 6 and 8 and the image receiving systems 27 and 29, respectively, and bring the X-ray tubes 6 and 8 close to the subject 16. Then, both devices are set, and fluoroscopic imaging is performed. Even when the front system switch 22 and the side system switch 23 are switched on the operation console 21, when actually moving the device, the device is moved while looking at the device main body instead of the operation console 21. There is a problem that is difficult to recognize. Further, the surgeon may mistakenly switch between the front system switch 22 and the side system switch 23 of the operation console 21. In that case, there is a problem that the unexpected side of the support mechanism starts to move, which is dangerous.
[0008]
The present invention has been made in view of such circumstances, and an X-ray tube and an image receiving system are attached to two types of C-arm holding devices supported from a ceiling or a floor, and fluoroscopic imaging is performed from two directions. It is an object of the present invention to provide an X-ray diagnostic apparatus that allows an operator to correctly identify two types of apparatuses that can perform the operation and to safely operate the apparatus.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, an X-ray diagnostic apparatus according to the present invention includes an X-ray tube apparatus that emits X-rays toward a subject and an X-ray image formed by transmitting the X-ray image through the subject. In addition to providing two sets of systems including an image receiving system for converting signals, an operation console for operating these two systems and an operation switch in the operation console are provided so that a subject can obtain X-ray images in two directions. In the biplane X-ray diagnostic apparatus described above, an indicator light is provided on each of the image receiving system of the two systems, the X-ray tube device, and the C arm, and the indicator light is operated by operating a switch on the system side of the operation console. It is configured to be turned on.
[0010]
Further, the X-ray diagnostic apparatus of the present invention is configured such that when the operation console switch is selected only for the front system, and when only the side system is selected, the lighting color of the indicator light is different. Things.
[0011]
In addition, the X-ray diagnostic apparatus of the present invention is configured such that the lighting color of the indicator lamp is different between a case where only one system of switches of the operation console is selected and a case where two systems are simultaneously selected. It was made.
[0012]
The X-ray diagnostic apparatus of the present invention is configured as described above, and an operation indicator is provided on each of the two systems (biological imaging system or X-ray tube device or C-arm) for biplane fluoroscopy. By operating a switch on the system operated by the operation console, the indicator lamp of the device on the operation side (image receiving system or X-ray tube device or C arm) is turned on. Thereby, the operator recognizes which device is operable or in operation.
In addition, when the switch of the operation console is selected only for the front system, and when only the side system is selected, the lighting color of the indicator lamp of the device is changed to a different color so that the operator sees different colors. Thus, it is possible to recognize which device is operable or is operating.
Also, when only one system of the switch of the operation console is selected and when two systems are simultaneously selected, the lighting color of the indicator lamp of the device is changed to a different color, so that the operator can change the color. , It is recognized whether the operable or operating device is only one device or both devices.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of the X-ray diagnostic apparatus of the present invention will be described with reference to FIG. FIG. 1 is a diagram showing the configuration of the X-ray diagnostic apparatus of the present invention.
The X-ray diagnostic apparatus is held by a C-arm 11 and emits X-rays toward a subject 16 on a table 15a of a bed 15; An X-ray image formed by transmitting the X-rays 16 is converted into a video signal, and a system including an image receiving system 7 provided with an externally operating indicator light 12 and the C-arm 10 are mounted on the same bed 15. An X-ray tube 8 that emits X-rays toward the subject 16 on the plate 15a, and an X-ray image that is disposed opposite to the X-ray tube and that is transmitted through the subject 16 and converted into a video signal; It comprises a system comprising an image receiving system 9 provided with an externally operating indicator light 13, an operation console 1 for operating both systems, and a plurality of monitors 14 suspended from the ceiling for displaying fluoroscopic images and photographed images. Is done.
[0014]
The present X-ray diagnostic apparatus is a biplane X-ray diagnostic apparatus configured to obtain X-ray images in two directions for a subject 16, and includes two types of C-arm 11 and C-arm 10. An indicator light 12 and an indicator light 13 for notifying that the system is operating are provided to the image receiving system 7 and the image receiving system 9, or the X-ray tube 6 and the X-ray tube 8, or the C-arm 11 and the C-arm 10, respectively. By turning on the front system changeover switch 2 (F) and the side system changeover switch 3 (L) on the operation console 1 to operate the respective systems, the display lamps 12 and 13 are turned on. This allows the surgeon to identify which system is operating.
[0015]
Next, each component of the X-ray diagnostic apparatus will be described.
The indicator light 12 and the indicator light 13 are provided on the outside of each of the two systems so that the operator can easily identify them. In FIG. 1, it is provided outside the image receiving system 7 and the image receiving system 9. The indicator lamps 12 and 13 are turned on by the signals of the front system switch 2 (F) and the side system switch 3 (L) of the operation console 1 to indicate that the lit system is operating. . When the two systems are operated at the same time, both switches are selected, and both indicator lights 12, 13 are turned on.
In addition, since the two types of image systems held by the C-arm 11 and the C-arm 10 move to various angles and positions, if it is difficult to see one display at a time, a plurality of indicator lights per set are required. 12 and an indicator light 13 may be provided.
Even if a switch is selected on the operation console 1, if the operation is prohibited by an interlock or the like, the light may be turned off.
[0016]
In two-direction simultaneous imaging (biplane imaging) from the front side, an image system (X-ray tube 6 and image receiving system 7) attached to the front C-arm 11 and an image attached to the side C-arm 10 The system (the X-ray tube 8 and the image receiving system 9) is used. In general, in order to effectively use the space to be operated, one of the front C-arm 11 and the side C-arm 10 is suspended from the ceiling. The X-ray tube 6 and the X-ray tube 8 are set on the lower and side surfaces of the top plate 15a, and the under tube is held. Used in state. Therefore, the indicator lamp 12 and the indicator lamp 13 are attached to the image receiving system 7 and the image receiving system 9 set above the top plate 15a. When used in an overtube state, an indicator lamp may be provided outside the X-ray tube 6 and the X-ray tube 8. In either case, the indicator lamp 12 and the indicator lamp 13 may be provided in both the image receiving system 7 and the image receiving system 9, and the X-ray tube 6 and the X-ray tube 8. Further, it may be provided on the C-arm 11 and the C-arm 10.
[0017]
Also, as shown in FIG. 2, the indicator lamps 12 and 13 may have different colors for the indicator lamp 12 and the indicator lamp 13 of the two-system. FIG. 2 shows the colors in which the front indicator light 12 and the side indicator light 13 are turned on when the front switch 2 and the side switch 3 of the operation console 1 are selected.
When only the front system changeover switch 2 is turned “ON”, only the front system indicator lamp 12 is lit in blue, and the side system indicator lamp 13 is not lit. When only the side-system switch 3 is turned “ON”, only the side-system indicator lamp 13 is lit in yellow, and the front-system indicator lamp 12 is not illuminated. When both the front system switch 2 and the side system switch 3 of both systems are turned “ON”, both the indicator lamps 12 and 13 are lit in green with the same color. As described above, the two types of lighting colors are set to different colors, and the lighting colors of the front system changeover switch 2 and the side system changeover switch 3 of the operation console 1 and the switches related to the respective support mechanisms (operation buttons 4, 5, etc.) If the colors are also similar, the recognition becomes easier.
When both the front system changeover switch 2 and the side system changeover switch 3 of both systems are turned “ON”, if one of the two systems is lit in a different color from that of only one system, one of the indicator lamps 12 is turned on. Just by looking at (or the indicator light 13), it can be recognized that two types are selected at the same time.
[0018]
As the X-ray tube 6 and the X-ray tube 8, large-capacity X-ray tubes are used, and the accumulated heat capacity of the anode is 1,000 to 3,000 kHU, 500 to 1,000 mA, a long time continuous pulse X-ray of 20 to 40 seconds. It has a specification and is equipped with an external heat exchanger, and its volume is large and heavy. Therefore, the operation of the C-arms 11 and 10 is also performed by checking the indicator lamps 12 and 13.
The operation console 1 is usually installed around the bed 15. The operation console 1 is provided with a front system changeover switch 2 and a side system changeover switch 3 so that biplane operation is easy, and an operation button 4 for the front system and an operation button 5 for the side system are used to operate each system. The operation of the C-arms 11 and 10 (rotation / C-arm running), the operation of moving the image receiving systems 7 and 9 back and forth, the operation of floating the top plate 15a, the setting of X-ray conditions, and the like are performed. A high voltage control circuit of an inverter type is provided outside to perform fluoroscopy with pulsed X-rays.
The image receiving system 7 and the image receiving system 9 are I.O. I. (Image intensifier) and a TV camera using a CCD. In a cardiovascular examination, a 9 inch I.D. I. For 12-inch or 16-inch I.D. I. Is used. In the case of head photographing, it is necessary to enlarge the image by about two times. The image receiving systems 7, 9 are moved backward at the ends of the C arms 11, 10, and fluoroscopic photographing is performed at various angles. Done. As described above, since the C-arm 11 and the C-arm 10 have to be moved and the image receiving system 7 and the image receiving system 9 have to be moved back and forth to be set, the operator determines which system is in the “ON” state. Then, the operator confirms the indicator light 12 and the indicator light 13 and performs an operation. Here, I. I. However, the system using the X-ray image detecting unit of the flat panel FPD is also provided with the indicator light 12 and the indicator light 13 in the same manner.
The monitor 14 is provided with two to four monitors 14 on a table suspended from the ceiling at a position easily viewable by an operator, and displays a front system perspective image and a side system perspective image. In particular, at the time of cardiovascular examination, a catheter is inserted and a contrast medium is injected while a biological signal such as an electrocardiographic waveform is displayed on the monitor 14 and a fluoroscopic image and a biological signal waveform are constantly observed.
[0019]
【The invention's effect】
The X-ray diagnostic apparatus of the present invention is configured as described above, and each apparatus including the C-arm for simultaneous imaging of the front side and the two sides is provided with a differently illuminated indicator light. By operating the switch on the system to be operated, the surgeon can see which device is operable or in operation by seeing the indicator light of the device being lit, and further seeing different lighting colors Thereby, it can be easily recognized. Thus, when the user moves the device while looking at the main body of the device, it is possible to identify which device is to be operated, which has conventionally been a problem, simply by looking at the indicator light. Further, even if the operator mistakenly switches the operation console, it is possible to reset the operation state to a normal inspection state by checking the indicator light in advance.
In this manner, the operation indicator lamp is attached to each device, and the lighting colors are different for both devices, so that the operator can easily confirm the operation of the device and improve safety.
[Brief description of the drawings]
FIG. 1 is a diagram showing one embodiment of an X-ray diagnostic apparatus of the present invention.
FIG. 2 is a diagram showing lighting colors of indicator lights of the X-ray diagnostic apparatus of the present invention.
FIG. 3 is a diagram showing a configuration of a conventional biplane X-ray diagnostic apparatus.
[Explanation of symbols]
1, 21 Operation console 2, 22 Front system changeover switch 3, 23 Side system changeover switch 4, 5, 24, 25 Operation buttons 6, 8 X-ray tubes 7, 9, 27, 29 Image receiving system 10, 11 C arm 12, 13 Indicator Light 14 Monitor 15 Bed 15a Top 16 Subject

Claims (3)

In addition to the two sets of systems comprising an X-ray tube apparatus that emits X-rays toward the subject and an image receiving system that converts an X-ray image formed by passing through the subject into a video signal, In a biplane X-ray diagnostic apparatus provided with an operation console for operating both systems and an operation switch in the operation console to obtain X-ray images in two directions for a subject, the image reception of the two systems An X-ray diagnostic apparatus, wherein an indicator light is provided on a system, an X-ray tube device, or a C-arm, and the indicator light is turned on by operating a switch on the system side of the operation console. 2. The X-ray display device according to claim 1, wherein when the switch of the operation console selects only the front system, and when only the side system is selected, the lighting color of the indicator light is different. X-ray diagnostic device. 2. The lighting color of the indicator lamps is different when only one system of switches of the operation console is selected and when two systems are simultaneously selected. X-ray diagnostic apparatus.

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