JPH046544A - X-ray radiographic equipment - Google Patents

Abstract

PURPOSE:To thoroughly house a film or to insert the film into a film holder even in the case of turning off a power source, or even in the case of switching operational selection by providing a checking means, a deciding means and a driving means. CONSTITUTION:A sensor state capable of detecting the position of the film can be detected by checking the state of the respective sensors 95 - 100 in a video device 90 after a power source is turned on, and also the operational condition of feeding the film in the video device 90 before the power source is turned on can be detected based on the information from a non-volatile storage part. It can be judged which actuator out of plural actuators 91 - 94 should be actuated based on the detection. The film kept in a stop state before turning on the power source can be fed to a normal position by the driving means based on the judgement. Thus, the film can be thoroughly housed or inserted into the film holder even in the case of turning off the power source, or even in the case of switching the operational selection.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an X-ray imaging device, and particularly to a cassette-less X-ray imaging device.

[Conventional technology]

As shown in FIG. 4, this type of cassette-less X-ray imaging device includes an X-ray control device 60 for controlling X-rays, and a system for setting X-ray film in a position where it can be taken and storing the film after it has been taken into a magazine. A cassette-less type imaging device 62 that automatically performs the operation, a photographing device 63 having an X-ray tube such as a tomography device or a fluoroscopy table device, and a control device 61 that controls the cassette-less type imaging device and the photographing device 63.
It is composed of.

Among these, the X-ray control device 60 is usually connected to a plurality of X-ray tubes, so the X-ray control device 60 can select a so-called surgical method to selectively control any one of the plurality of X-ray tubes. It has a function. A dual type selection push button 66 is provided as a means for operating a function that allows selection of a surgical type.

Assume that three X-ray tubes are connected to the X-ray control device 60, one of which is a tomography device, and the tomography device corresponds to the imaging device 63 shown in FIG. 4. Consider a case where the tomography apparatus is selected using the dual selection push button 66 after turning on the power switch 67 of the X-ray control apparatus 60.

When the both type selection push button 66 is turned on, the electromagnetic contactor 50 is turned on. This electromagnetic contactor 5
0 turns on, relays 52, 53, and 54 all turn on.

At this point, the photographing device 63 is supplied with power and becomes operational. Further, when the relay 52 is turned on, the electromagnetic contactor 55 is turned on. When this electromagnetic contactor 55 is turned on, relays 56 and 57 are turned on. At this point, power is supplied to the control device 61 and the video device 62 and they become operational.

As a result, control signals 64 are sent from the control device 61 to the video device 62 and the photographing device 63, respectively. This control signal 64 causes the video device 62 to
Then, take out the X-ray film from the magazine, insert it into the film holder at the imaging preparation position via the conveyance path, and then move the film holder to the imaging ready position.
When shooting is finished, the film in the film holder is stored in a magazine. For this reason, the video device 62 is provided with a plurality of actuators and sensors for automatically operating these devices. Further, the photographing device 63 is configured to perform various tomographic trajectories and to change the loading plane. Such operations are performed using, for example, a console (not shown) on the X-ray control device 60.

Note that the electromagnetic contactor 50 can be turned off using the X-ray control device i60 when it is desired to transfer both types from a conventional tomography apparatus to another different apparatus, or when the power supply is to be turned off. become. This electromagnetic contactor 50
By turning off, the relays 52, 53, and 54 are turned off. At this point, the photographing device 63 is no longer supplied with power and becomes inoperable. Further, since the relay 52 is turned off, the relay 52 is turned off.
6.57 will be turned off. At this point, power is no longer supplied to the control device 61 and the video device 62, and they similarly become inoperable.

[Problem to be solved by the invention]

However, in an X-ray imaging device with such a configuration, as is clear from the above, the power of the previously selected imaging device is turned off at the same time as switching between the two types, and as a matter of course, the X-ray If the power to the control device 60 is turned off, power will no longer be supplied.

Further, although the cassette-less type imaging device 62 has the above-mentioned functions, the X-ray film is automatically stored at the end of imaging, and it takes several seconds to completely store the X-ray film. In hospitals, there are many patients who undergo X-ray photography, and for this reason, the several seconds mentioned above become extremely wasted time when the operator wants to take X-ray images efficiently.

In addition, the operator selects a surgical technique and performs imaging using an imaging device with a cassette-less imaging device, and when the imaging is completed, the operator selects the same surgical technique to image the next patient, such as plain chest imaging. When switching to , as mentioned above, even though the film was automatically stored in the cassette telephoto camera as soon as shooting was completed, power was not supplied, so the camera stopped mid-way without being completely stored. Sometimes it happens. In this case, even if the surgical method selection is changed again or the power is turned on again, as shown in FIG. ), if the sensor is on, the control device 61 determines that the film is caught in the middle, generates an error (step 107), and stops the system (step 108).
)For.

The video device 62 becomes inoperable. This means that the film that could not be stored must be removed manually, and since the film that was taken has still been exposed to light, no X-ray image can be obtained even if it is developed. . Therefore, the patient has to lie down on the imaging table for the imaging again and is exposed to extra X-rays, and on the other hand, the operator wastes extra time.

Furthermore, the operator has to wait until the film is completely retracted, confirm that the film has been retracted, and then switch the surgical method selection, but since many patients are waiting, this few seconds can be very time-consuming. It will be a waste of time.

Furthermore, in conventional X-ray imaging apparatuses, even when the power is turned on and off, the same result as switching the surgical method selection described above is obtained, making it extremely difficult for the operator to operate the apparatus.

Therefore, the present invention was made based on these circumstances, and it is possible to completely store the film or insert it into the film holder even if the power is turned off or the surgical method selection is changed. To provide radiography equipment.

[Means to solve the problem]

In order to achieve such an object, the present invention basically includes a quick-shooting mechanism that holds a film holder containing a film therein and moves this film holder between a shooting preparation position and a shooting position; A film conveyance unit including a plurality of actuators for conveying unshot film from a supply magazine to the quick copy mechanism and photographed film from the quick copy mechanism to a storage magazine, and a transport position of the film in the film conveyance unit. An imaging device equipped with a plurality of sensors for detection, an imaging device equipped with an X-ray tube, an X-ray control device that has a surgical technique selection function and controls X-rays, and stores information on the operation mode of film transport. a control device that has a storage unit that controls each of the devices, and
A cassette-less type X-ray imaging apparatus comprising: a checking means for checking the status of each sensor in the imaging apparatus after power is turned on; and information from the checking means and information from the storage section. A determining means for determining the actuator to be operated; and a driving means for driving the actuator determined by the determining means and continuing the driving until the film is stored in the film holder or the storage magazine. It is characterized by this.

[Effect]

The X-ray imaging device configured in this way has a sensor state that can detect the film position by checking the state of each sensor in the imaging device after the power is turned on, and a power supply based on information from the storage section. It is possible to detect the operating mode of film conveyance within the imaging device before inputting the film. and.

From these detections, it becomes possible to determine which of the plurality of actuators should be operated. Based on this determination, the driving means transports the film, which had been stopped before the power was turned on, to its normal position. For example, if the film is being removed, the film will be removed until it is completely removed; if the film is being loaded into the film holder, the film will be inserted into the film holder and ready for shooting; if the film is being stored, the film will be completely removed. Each operation continues until they are stored.

Therefore, even if the power is turned off or the surgical method selection is changed, the film can be completely stored or inserted into the film holder.

〔Example〕

FIG. 1 is a flowchart showing an example of control in an X-ray imaging apparatus according to the present invention, and FIG. 2 is a schematic diagram showing an example of the internal structure of an imaging device in the X-ray imaging apparatus. FIG. 3 is a schematic configuration diagram showing an embodiment of the X-ray imaging apparatus according to the present invention.

In FIG. 3, the X-ray imaging apparatus according to the present invention includes a quick-shooting mechanism section that holds a film holder containing film and moves the film holder between an imaging preparation position and an imaging position, and a A so-called cassette-less type imaging device 27 comprising a film transport unit for exchanging film and unexposed film, an imaging device 28 having an X-ray tube, and a surgical method selection function and an
It consists of an X-ray control device 25 that controls the X-rays of the imaging device 28 using a ray control signal 31, and a control device 26 that controls the X-ray control device 25, the imaging device 27, and the imaging device 28, respectively, using a control signal 30. ing.

The cassette-less type video device 27 is constructed as shown in FIG. That is, one unphotographed film 73 is pulled out from the supply magazine 71 by the roller 74. An actuator 91 for rotating the roller is connected to the roller 74. Said film 7
3 is sent to the roller 76 via the guide 75 by the actuator 91, guided in the direction of arrow E by the actuator 92 connected to the roller 76, and sent to the guide 77, provided at the end of this guide 77, and connected to the roller 78. As shown in the figure, the actuator 93 causes the two plates 80a and 80b to be opened and inserted into the film holder 85 which is in the open state. When the unshot film 73 is inserted in this way, two plates 80
a.

80b is closed, the film holder 85 is in a closed state, and the film 73 is compressed and stored from both sides. At this time, the internal film 73 is designed to be shielded from light. The film holder 85 is fed into a quick-shooting mechanism (not shown) and set at a shooting position. When the shooting is completed, the film 72 that has been shot and the film 73 that has not been shot are replaced, so the above-mentioned operation is reversed, and the film holder 85 that was in the shooting position in the quick-shooting mechanism is moved to the position if (shooting) as shown in FIG. Return to the preparation position) and remove the two plates 80a of the film holder 85.

The plate members 80a and 80b are opened from the opened film holder 85 by the roller 78 and the actuator 93 connected thereto. Take out the photographed film 72 between them, send it to the roller 76 via the guide 77 by the actuator 93, and move it to the arrow F by the actuator 92 connected to the roller 76.
The paper is guided in the same direction and sent to a guide 82, and is stored in the storage magazine 70 by a roller 83 provided at the end of the guide 82 and an actuator 94 connected to the roller 83. Thereafter, by the above-described operation, the next unshot film 73- is taken out from the supply magazine 71, and
It is designed to be housed inside a film holder 85 held in the vicinity of the opening in the film transport section 90 .

From then on, such operations are repeated one after another.

Note that a sensor 95 is arranged near the roller 74 to detect whether the unphotographed film 73 has been taken out from the supply magazine 71. Further, a sensor 96 is arranged near the roller 76 so as to be able to detect when the unphotographed film 73 passes through the guide 75.

Furthermore, a sensor 97 is disposed near the roller 78,
It is possible to detect that the unphotographed film 73 has passed through the guide 77 or that the photographed film 72 has come out of the film holder 85. Further, a sensor 98 is disposed near the roller 76 to detect when the photographed film 72 has passed through the guide 77. Further, a sensor 99 is disposed between the guides 82 and can detect when the photographed film 72 passes through the guides 82. Further, a sensor 100 is disposed near the roller 83 to detect that the photographed film 72 is stored in the storage magazine 70.

In the cassette-less type and video device configured as described above, the operating conditions can be roughly divided into two types: unshot film 73
The first operation is to take out the film from the supply magazine, the second operation is to carry the unphotographed film thus taken out into the film holder 85 and close the film holder, and to open the film holder 85 after shooting is completed. It consists of a third operation of taking out the photographed film 72 from the film holder 85 and storing it in the storage magazine 7o.

These first to third operations are performed by the control device 26.
are set as flags to 3, respectively,
If the corresponding operation is in progress, turn on the flag,
It is set to turn off if it is not in operation. The states of these flags are always stored in the nonvolatile storage section.

In this case, when the power is turned off or when the two-way selection is switched, if a certain operation is being executed, the operation flag is stored in the non-volatile storage section, and the film completely executes the operation. It ends up being stopped without being able to finish it. In this embodiment, the following processing is performed.

That is, as shown in Fig. 1, when the power is turned on again or the surgical procedure selection is switched to this device, the control unit [26
Then, initialize Ilo (step 1), and then check the states of each of the above-mentioned sensors in the video device i27 (step 3). In the past, if any one of the sensors was on, it was determined that the film was caught in the video device, an error occurred, and the entire system was stopped. However, in this embodiment, if each sensor is off, it is determined that the film is not caught in the imaging device, so execution is shifted to the main processing after checking these sensors. (Step 15). However, when a sensor is on, it is necessary to distinguish which sensor is on,
Input information corresponding to the sensor that is turned on into the actuator selection (step 8), and execute an operation flag check (step 5). As described above, since the operation flag is stored in the non-volatile storage section, this information is input to the actuator selection in the same way as the sensor information, and the actuator selection is executed based on the combination of the sensor information and the operation flag information. (Step 8). and,
After executing the sub-process for operating the actuator (step 12), the process returns to the main process (step 15).

In the above-described control, for example, when the power is turned off during the first operation, the flag for the first operation is stored as on in the nonvolatile storage section.

Assuming that the film remains stopped in the vicinity of the roller 76, when the power is turned on again, the sensor state checking process will show that the sensor is on and the others are off. The memorized action flag is the first
The operation flag is on, and this operation flag information and the sensor information are input to the actuator selection process.

The actuator selected from this combination becomes the actuator 92, and the actuator 92 is selected in the sub-processing.
is rotated, and the film is placed in the film holder 85.
This operation will be performed until the film holder 85 is in the closed state.

Also, for example, if the power is turned off during the third operation,
The flag for the third operation is turned on and stored in the nonvolatile storage section. Assuming that the film remains stopped in the vicinity of the roller 78, when the power is turned on again, the sensor state checking process will show that the sensor 97 is on and the others are off. The stored operation flag is that the third operation flag is on, and this operation flag information and the sensor information are input to the actuator selection process, and the actuator selected from this combination is actuator 93, and in the subprocess The actuator 93 is rotated to send the film to the roller 76 via the guide 77, and the actuator 92 connected to the roller 76 guides the film in the direction of arrow F and sends it to the guide 82. The actuator 94 connected to the provided opening lug 83 is used to carry out the operation until it is stored in the storage magazine 70.

As explained above, the X-ray imaging apparatus configured in this manner has a sensor state that can detect the film position by checking the state of each sensor in the imaging device 62 after power is turned on, and a non-volatile Image device before power is turned on based on information from memory! 62 can be detected. and,
From these detections, it becomes possible to determine which of the plurality of actuators should be operated. Based on this determination, the driving means transports the film, which had been stopped before the power was turned on, to its normal position. For example, if the film is being removed, the film will be removed until it is completely removed; if the film is being loaded into the film holder, the film will be inserted into the film holder and ready for shooting; if the film is being stored, the film will be completely removed. Each operation continues until they are stored.

Therefore, even if the power is turned off or the dual mode selection is switched, the film can be completely stored or inserted into the film holder.

〔Effect of the invention〕

As is clear from the above explanation, X according to the present invention
According to the radiography apparatus, the film can be completely stored or inserted into the film holder even if the power is turned off or the surgical method selection is switched.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing an example of control in an X-ray imaging apparatus according to the present invention, FIG. 2 is a configuration diagram showing an example of the internal structure of an imaging device in the X-ray imaging apparatus, and FIG. is a block diagram showing an example of an X-ray imaging device according to the present invention, FIG. 4 is a block diagram showing an example of a conventional X-ray imaging device, and FIG. 5 is a block diagram showing an example of a conventional X-ray imaging device. FIG. 25... X-ray control device, 26... Control device, 27.
- Imaging device, 28... Photographing device, 30... Control signal, 71... Supply magazine, 70... Storage magazine,
73...Maya 1st day! solid

Claims (1)

[Claims] 1. A quick-shooting mechanism that holds a film holder containing film therein and moves the film holder between a shooting preparation position and a shooting position; An imaging device including a film transport unit including a plurality of actuators for transporting the photographed film from the quick-shooting mechanism to a storage magazine, a plurality of sensors for detecting the transport position of the film in the film transport unit, and an X-ray tube. an X-ray control device that has a surgical technique selection function and controls X-rays, and a storage unit that stores information on the operation mode of film transport, and controls that control each of the devices, respectively. A cassette-less type X-ray imaging apparatus comprising: a checking means for checking the status of each sensor in the imaging apparatus after the power is turned on; and information on the checking means and information in the storage section. determining means for determining the actuator to operate based on the information; and driving the actuator determined by the determining means, and continuing the driving until the film is stored in the film holder or the storage magazine. An X-ray imaging apparatus characterized by comprising: a drive means for causing the