JPH0216726Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an X-ray imaging apparatus that can simultaneously confirm whether the patient is ready for imaging and the apparatus is ready for imaging.

In recent years, from the viewpoint of labor saving, a large number of X-ray sheet films are loaded into a magazine at once, the films are transferred one by one to the imaging stage, and after the X-ray photograph is taken, the films are removed from the imaging stage.
Linear film changers have become popular.

An example of a conventionally used film chain for chest imaging will be explained with reference to the drawings.

FIG. 1 shows a system using this apparatus, in which 1 is an X-ray tube, 2 is a subject, 3 is a film changer, and 4 is a pedestal for supporting the film changer.

FIG. 2 is a cross-sectional view of the film chain engine 3.
5 is a film of a first size, and 6 is a film of a second size different in width from the first size film. Reference numeral 7 indicates a supply magazine for storing a first size of unexposed film, 8 indicates another supply magazine for accommodating a second size of unexposed film, 9 indicates a receive magazine for collecting exposed film, and 10 indicates an already exposed film. It is a film of
Each magazine has a rectangular opening on its side surface suitable for loading and unloading film. Then 11,11'
is a suction cup connected to a suction pump (not shown), and is reciprocated between the illustrated position and the interior of the magazine by a moving mechanism. 12a to 12e are rotating rollers that have the function of sandwiching and moving the film between them. Reference numeral 13 denotes a guide plate that guides the film along the transfer path. 14 is a front intensifying screen fixed to an X-ray transparent fixing plate. Reference numeral 15 denotes a rear intensifying screen, which is fixed to a fixed plate that can be moved back and forth, and exposure is performed by sandwiching the sheet film between both intensifying screens. The place where the intensifying screens 14 and 15 are provided becomes a photographing stage. A film stopper 16 supports the lower end of the sheet film. 17 is a film scraping lever that has the function of scraping off the sheet film after shooting. 18 is a rotating roller, and 19 is a guide plate, which has the function of moving the photographed film.

In this film changer, a controller is installed in the X-ray operation room separately from the changer itself, and when the film in the film changer is sent to the imaging stage and preparation for imaging is completed,
The photography ready lamp provided on the controller lights up.

Further, while the film changer is in operation, an operating lamp provided on the controller flashes.

However, when irradiating X-rays by remote control, the operator is in the X-ray operation room and performs X-ray irradiation by pressing an X-ray irradiation button or the like.

At this time, it is necessary to confirm that the subject is in an appropriate posture. Therefore, the operator must confirm both the lamp on the controller and the subject before pressing the X-ray exposure button.

Here, when the operator checks the subject, it is convenient if the operator can check the status of the apparatus at the same time. Therefore,
It is conceivable to mount the above-mentioned indicator lamp in operation on the side of the film chainer on the operation room side.

However, depending on the facility, the operating room is not always located on the same side of the film changer, so it is necessary to change the location of the indicator lamp depending on the facility.

The purpose of this invention is to enable the operator to take the patient's position from the X-ray operating room without modifying the equipment, regardless of whether the operating room is located on the front, right, or left side of the X-ray imaging device as viewed from the imaging stage. To provide a device that can simultaneously determine the readiness state of an X-ray imaging device without changing the line of sight when confirming.

Examples of the present invention will be described below.

FIG. 3 is a diagram showing an example of a film chainer according to the present invention. In the figure, 3 is a film changer, 7 and 8 are supply magazines, 9 is a receive magazine, 20, 21, and 22 are magazine insertion completion lamps, film feeding start lamps, and lid opening/closing lamps, and the magazine insertion completion lamp 20 is Various types are provided depending on the film size. lamp 2
0, 21, and 22 are preferably provided on the side as shown in the figure in consideration of operability.

Here, 100 is a lamp indicating completion of photographing preparation, and is provided at a position where it can be observed from the front side, left side, and right side of the apparatus.

In this embodiment, it is provided at the corner of the upper surface, but the invention is not limited thereto, and it may be provided, for example, at a corner on the tapered portion 101 that is not obstructed by the subject.
By the way, in this embodiment, the film is the intensifying screen 14,
15, the lamp 100 lights up. Further, the lamp 100 blinks while the film changer is in operation. Of course, the direction of lighting and flashing may be reversed. In the present invention, the lamp 100 is replaced by the lamp 2.
Since the lamp 100 can be viewed from the three directions by providing the lamps 100 at different positions 0, 21, and 22, the operator can simultaneously observe the subject and the device in a ready state for imaging. Note that the lamp 100 may be other display means such as a liquid crystal or a light emitting diode.

Note that the controller itself can of course be incorporated inside the main body.

By the way, although it has been shown that the lamp 100 has a plurality of display modes, the circuit diagram of this electrical system is shown in the fourth section.
As shown in the figure.

201 is an oscillator such as a multivibrator, 2
02 is a gate circuit, 203 is an OR circuit, and 204 is an inverter driver.

FIG. 5 shows the output signal waveforms of each part in FIG. 4. The output a of the oscillator 201 is gated by the signal OPER,b which is "1" during operation in the gate circuit 202, and has the waveform shown in c. c is X in OR circuit 203
The signal READY,d which is “1” in the radiation exposure preparation state
The logical sum becomes e. The signal e is inverted by the inverter driver 204 to turn on or off the lamp 100 whose other end is connected to the power supply Vc. As is clear from FIG. 5, the lamp 100 is always lit when READY is "1" and repeatedly blinks when OPER is "1".

In the above embodiment, the film is the intensifying screen 1.
When the film was sent between 4 and 15, the lamp 100 was lit, but there were other requirements such as a receive magazine being loaded and an ID card for imprinting the patient's name on the film. The lamp 100 may be turned on only when the film is set in a predetermined position and the film is fed between the intensifying screens.

Further, although there is one lamp 100 in the embodiment, a plurality of lamps 100 may be provided so that different lamps are turned on when films of different sizes or types are sent to the photographing stage.
The lamp 100 may also indicate other conditions of the film changer, such as when the receive magazine is full of film.

Furthermore, in the embodiment, the lamp 100 is turned on when the preparation for photographing is completed, and blinks during operation.
These may be displayed by causing the lamp 100 to emit light in different colors.

Further, in the embodiment, an apparatus for feeding a sheet film for direct photography is mainly shown, but the present invention can also be applied to, for example, an apparatus for feeding a roll film for indirect photography.

Further, in the embodiment, an indicator lamp is provided at the top of the device, but an indicator with the same function may be provided near the device, for example, on both sides of the film chain engine. The display lamp may be provided on the pedestal.

As described above, according to the present invention, when the operator is in the X-ray operation room and exposes X-rays without modifying the equipment depending on the facility, by paying attention to the patient's posture, the operator can simultaneously adjust the film changer. You can check whether the device is ready for shooting. This reduces operator fatigue and reduces operational errors such as double irradiation.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of a conventional X-ray imaging system and an X-ray film changer, respectively. FIG. 3 is an illustration of an embodiment of the apparatus according to the present invention. They are circuit diagrams and output waveform diagrams of electrical systems that change the display mode. In the figure, 1 is the X-ray tube, 2 is the subject, 3 is the film changer, 4 is the mount, 7 and 8 are the supply magazines, 9 is the receive magazine, 20 is the magazine insertion completion lamp, and 21 is the film feed 2 is a start lamp, 22 is a cover opening/closing lamp, 100 is a shooting ready lamp, 101 is a tapered portion, 201 is an oscillator, 2
02 is a gate circuit, 203 is an OR circuit, and 204 is an inverter driver.

Claims (1)

[Scope of claim for utility model registration] (1) An X-ray machine installed in a photography room with a built-in X-ray film
Place the patient closely in front of the X-ray imaging device,
In an X-ray imaging device that records X-rays on an X-ray film on an imaging stage inside the X-ray imaging device body by irradiating X-rays from behind the subject in front of the main body, the front side and right side of the imaging stage - An operating means installed in a separate operation room from the imaging room located in either direction on the left side, for the operator to remotely control the X-ray imaging operation in the operation room; A display means is provided protruding from the upper surface of the main body of the X-ray imaging apparatus so that it can be observed together with the patient, and indicates the completion state of radiography by emitting light, and the state of the light emitted by the display means and the state of the patient are confirmed at the same time. An X-ray imaging apparatus comprising: a control means for performing an imaging operation based on a signal from the operating means operated by an operator. (2) The radiographing preparation completion state is determined based on whether or not at least the X-ray film is on the radiographing stage.
Ray imaging device.