JPS5938735A - X-ray photographing device - Google Patents

Abstract

PURPOSE:To indicate the number of exposed films in a magazine accurately by providing a mechanism that detects mounting of a receive magazine. CONSTITUTION:An RAM 21 and a peripheral interface adapater (PIA) 22 are connected to an MPU 20 consisting of a microcomputer etc. Input of a receive magazine detector 23 that adetect the presence of the receive magazine is connected to the PIA 22 through an inverter buffer 24, and output of a film detector 26 that detects the film carried to the receive magazine optically, for instance, after X-ray photographing is connected through an inverter buffer 27. Output that lights an indicator lamp 5a to indicate filling up of the receive magazine is given by the PIA 22 through an inverter buffer 28.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a film that feeds unX-rayed film from a supply magazine to an imaging stage, and after X-ray imaging, removes the X-ray film from the imaging stage and stores it in a receive magazine. The present invention relates to an X-ray photographing apparatus that resets a count storage unit that counts the number of films stored in a receive magazine in a changer, and controls the film changer based on the count value of a λ1 number storage unit.

Conventional X-ray film changers use an electromagnetic counter exclusively to count the number of films stored in a receive magazine.

If the operator replaces the receive magazine,
Or, if the receive magazine is removed and the film is taken out, the operator must reset the count value of the electromagnetic counter to zero. Therefore, the electromagnetic counter continues counting even though the receive magazine is empty due to the operator forgetting to reset it, resulting in a disadvantage that the number of films in the receive magazine cannot be determined.

Additionally, if the operator does not realize that the receive magazine is full of film and subsequently tries to store the film in the receive magazine, the film may become jammed at the entrance of the receive magazine. There is a risk that the film changer may become damaged and become unusable, or the film changer may malfunction. Therefore, in conventional devices, a safety mechanism is provided in which an electromagnetic counter operates and prohibits the operation of the film changer when the number of sheets that can be stored in the sieve magazine is reached. However, if the operator does not always pay attention to the value of the electromagnetic counter, a phenomenon may occur in which the device suddenly stops working when the operator is present. Furthermore, if the next patient is already waiting in front of the X-ray imaging device when the receive magazine is changed, there is the inconvenience that the patient will have to wait while the operator replaces the receive magazine. There is also.

An object of the present invention is to improve the above-mentioned drawbacks, to reliably count the number of films stored in the receive magazine, and to ensure that the number of exposed films in the receive magazine always matches the count value of the counting counter. The object of the present invention is to provide an X-ray imaging device that prevents the operator from performing such operations. In a film changer that removes film from a shooting stage and stores it in a receive magazine, a receive magazine detector detects a device connecting the receive magazine to the film changer, and a film detector detects film stored in the receive magazine. , a counting storage unit that counts the output of the film detector and stores the counted value;
The device is characterized by comprising means for changing the count value of the count storage unit to a predetermined value when the receive magazine detector identifies that the receive magazine is not attached to the film changer. It is.

The present invention will be explained in detail based on illustrated embodiments.

FIG. 1 shows an operation panel 1 of a film changer to which the present invention is applied. On the surface of this operation panel l, a warning indicator lamp 2 indicates that a card for imprinting the patient number is not inserted, a warning indicator lamp 3 indicates that the magazine storage door is open. 4. Warning indicator lamp indicating that the automatic processor is not ready when the film changer and automatic processor are combined. A warning indicator lamp 5 indicates that the receive magazine is full of film or that no receive magazine is installed; an indicator lamp 6 indicates that the film has been fed to the imaging stage and the film changer is ready for X-ray imaging; A push button 7 with an indicator lamp for switching between continuous operation of feeding the next unshot film after removing the shot film from the shooting stage, or a single operation of not feeding, and whether the film is stored in the receive magazine. Alternatively, there is a push button 8 with an indicator lamp for switching to an automatic developing machine, a push button 9 with an indicator lamp for leaving the film on the photographing stage without taking an X-ray image, a push button 10 with an indicator lamp for opening the door, LED, etc. A first numerical display 11 which displays the remaining number of 14-inch x 14-inch films in the supply magazine and is backed up in memory. Switch 12 for setting the IO digit and hundreds digit of the first numeric display, switch 12 for setting the 1s digit of the first numeric display 11 13.14 inch x 14 inch size a push button with an indicator lamp for feeding the film from the supply magazine to the photographing stage; a second numerical display 15 that displays the number of remaining sheets in the 14-inch Xl inch size supply magazine and is backed up in memory; A switch 16 for performing the same operation as the switch 12 and 13 for the second numerical display 15, a push button 18 with an indicator lamp for feeding a 14 inch x 1 finch size film are arranged. There is.

As is clear from the arrangement of the operation panel 1, this embodiment does not include a numerical display for displaying the number of films stored in the receive magazine.

Of course, there is no problem even if an old numerical display for the number of stored films is installed, but in order to make the operation panel 1 more compact and furthermore to make the device more compact, it is not necessary to intentionally provide a numerical display for the number of stored films. . Instead, when the number of stored films approaches the film storage capacity of the receive magazine, a warning indicator lamp 5 is flashed to warn that the receive magazine is about to become full.

FIG. 2 is a block diagram of the operating circuit, and only the parts related to the present invention are shown. A RAM 22 and a PIA 22, which is a peripheral interface adapter, are connected to an MPU 20 consisting of a microcomputer or the like. The output of a receive magazine detector 23 that detects the presence of a receive magazine is connected to the PIA 22 via an inverter buffer 24, and an inverter eight core 24 is connected to the PIA 22.
A power supply circuit is connected to via a resistor 25. Similarly, the output of a film detector 26 that optically detects, for example, a film fed to a receive magazine after X-ray imaging is connected via an input core 27. Further, the PIA 22 outputs an output via the inverter buffer 28 to light the lamp 5a of the display lamp 5 to indicate that the receive magazine is full. In reality, a large number of other input devices and output devices are connected to the PIA 22, but since they have little to do with the explanation that will be given later, their illustrations are omitted. In addition, X, Y
represents the area reserved for storing the number of stored films in the RAM 21, each consisting of 4 bits, and the highest FF in hexadecimal (hereinafter expressed as FFH by adding H to the hexadecimal), It is possible to store up to a maximum of 255 lOa (hereinafter, decimal numbers will be expressed as 255D by adding D to them). RAM21 is Yatsuteri Packup and E
EFROM, or the recently developed nonvolatile Jl/
If RAM (NOVA RAM) etc. is used, the stored contents will be retained even if the power is cut off.

3 and 4 are flowcharts of programs for operating the device shown in FIG. 2, and FIG. 3 shows the main routine,
FIG. 4 shows an interrupt routine for the film storage operation. It should be noted that these figures t53 and 4 only show the parts related to the present invention, and other parts are omitted. Also,
In this embodiment, the film storage capacity of the receive magazine is 100D sheets, and when it reaches 950 sheets, a warning is given that the receive magazine is almost full.

When the power is turned on to the Thai JL/whip enginer, the main routine shown in FIG. 3 for managing the number of films in the receive magazine starts.6 A brief explanation will be given below.

(301) Program started.

(302) Determine whether or not a receive magazine is attached based on the input signal of the receive magazine detector 23.

(303) If the receive magazine is installed,
RAM21 (7) area X, Y (7) contents are 95D (5F
H) Determine whether it is smaller than.

(304) If it is smaller, the lamp 5a, that is, the indicator lamp 5 is turned off and the process returns to 302.

(305) If the contents of areas X and Y are not smaller than 95D (5FH), the display lamp 5 is blinked to issue a warning and the process returns to 302.

(306) If the receive magazine is not installed, the contents of areas X and Y of the RAM 21 are set to zero.

(307) Turn on the display lamp 5 and return to 302.

When a film is present on the imaging stage and push button 9 with an indicator light is pressed to take an X-ray or to remove the film without taking an X-ray, the interrupt function causes the program to return to the main routine shown in Figure 3. Then, the program moves to the interrupt routine for film storage operation shown in FIG. 4, and the film is stored from the photographing stage into the receive magazine with the following operations.

(401) Start the program (402) Determine whether or not a receive magazine is installed. If it is not installed, jump to 406.

(403) The contents of areas X and Y of RAM21 are 100.
It is determined whether or not it is smaller than D (64H). If it is not smaller, the process jumps to 406.

(404) If the receive magazine is attached, the film is stored.

(405) Obtain the output of the film detector 26 and store it in the RAM
Add 1 to the contents of areas X and Y of 21.

(406) Return to the interrupt point in the main routine.

By repeating the film storing operation in this way, the area
When the content of Y reaches 95D, the flowchart shown in Fig. 3 moves to 305 without going from 303 to 304, blinking the display lamp 2, and warning the operator that the film in the receive magazine is almost full. do. At this point, it is desirable for the operator to either replace the receive magazine with an empty one or remove the film from the receive magazine, but since the film is not yet full, the film storage operation is possible. If the operator does not have time to replace the receive magazine, he can shoot the remaining five films while heeding the warning. If you continue shooting and the contents of areas x and Y reach 100D (64H), even if you try to store the film, the process will jump from 403 to 406 shown in Figure 4, and the film changer will fail without storing the film. It is designed to prevent you from doing so. When the operator removes the receive magazine, the area moves from 302 to 306 shown in FIG.
At the same time, the display lamp 5 is turned on at 307 to warn that the receive magazine has been removed. When an empty receive magazine is reinstalled in the film changer, the operation returns to the original routine 302-304 and repeats the above-described operation.

In the above-described embodiment, an example was shown in which the numerical display for displaying the number of stored films was omitted, but this numerical display may also be provided on the operation panel l. In this case, RAM
It is possible to add 3-digit LED dry 8 and F-shaped LEDs to 22. In this case, the warning display will be changed to the number L.
It is also possible to make the ED blink.

In addition, in the example, the number of stored films was added, but
The area X and Y due to the removal of the receive magazine is 100D.
(64H) It is also possible to set d and calculate M by l. In this case, 303 shown in FIG.
5D", and 306 is the content of rRAM = 100
DJ, 403 as rRAM contents = OJ, 405 as rR
The contents of AM=contents of RAM−1” may be used.

As explained above, the X-ray imaging apparatus according to the present invention automatically resets the count of the number of film sheets stored in the receive magazine by simply removing the receive magazine from the film changer, thereby preventing the operator from performing this operation. At the same time,
- By issuing a warning when the receive magazine is almost full, and by prohibiting the film changer from storing the film when the receive magazine is full, inconveniences in operation and failure of the film changer can be prevented. can.

[Brief explanation of the drawing]

The drawings show an embodiment of the X-ray imaging apparatus according to the present invention, in which FIG. 1 is a front view of the operation panel, FIG. 2 is a block circuit diagram,
FIG. 3 is a flowchart of the main routine for operating the circuit of FIG. 2, and No. 41 is a flowchart of the interrupt routine for film storage operation. 1 is the operation panel, 2 to 6 are display lamps, 7 to 10 are display lamps and push buttons, 11.15 is a numerical display, and 20 is M
PU, 21 is a RAM, 22 is a PIA, 23 is a receive magazine detector, and 26 is a film detector. So 2b! 1 22 Figure 3

Claims (1)

[Scope of Claims] 1. In a film changer that feeds sheet film that has not yet been exposed to X-rays from a supply magazine to an imaging stage, and removes the exposed sheet film from the imaging stage after X-ray imaging and stores it in a receive magazine, A receive magazine detector that detects attachment of a magazine to a film changer, a film detector that detects films stored in the receive magazine, and a counting storage unit that counts the output of the film detector and stores the counted value. and means for changing the count value in the count storage section to a predetermined value (white) when the receive magazine detector identifies that the receive magazine is not attached to the film changer. X-ray photography equipment. 2. X according to claim 1, wherein when the count value of the count storage unit becomes a reference value, the storage operation of storing the film in the receive magazine is prohibited.
Ray imaging device. 3. The X-ray imaging apparatus according to claim 2, wherein the reference value is the number of film storage capacity of the receive magazine. 4. Displaying a warning when the count value in the count storage unit becomes a preset value smaller than the reference value, and continuing to display the warning when the count value reaches the reference value. The X-ray imaging apparatus according to claim 2, wherein the storage operation is prohibited. 5. The X-ray imaging apparatus according to claim 4, wherein the warning display is made by blinking a display that displays a count value. 6. The X-ray imaging apparatus according to claim 4, wherein the warning display is made by blinking a display indicating whether or not a receive magazine is installed in a film changer. 7. When the receive magazine detector detects that the receive magazine is not installed in the film changer, the film storage operation prohibition display or warning display is stopped and the receive magazine is not installed in the film changer again. The X-ray imaging apparatus according to claim 2, wherein the display prohibiting storage operation is canceled when the receive magazine detector detects the detection.