JPH09248296A - X-ray photographic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate annoying operations that are susceptible to error by an operator. SOLUTION: A printing and conveying part 22 is installed to part of X-ray photographic apparatus 21. A supply roll 31 is set with roll-paper 32 photographing information is to be printed on and in line with a direction of roll-paper 32 is drawn to, a carrier-roller 33, a printing part 34 which prints information on roll-paper 32 and a cutting part 35 are installed to this printing and conveying part 22. An X-ray photographic apparatus 21 is installed with a copy taking window 21a used for taking a copy of photographic information written on the roll-paper 32 onto a film F'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has information imprinting means for imprinting imaging information such as patient information and imaging conditions on an X-ray film when imaging an X-ray transmission image of a patient using radiation. The present invention relates to an X-ray imaging apparatus.

[0002]

2. Description of the Related Art Conventionally, in X-ray photography, when a doctor or radiologist reads an X-ray film, patient information such as a patient's ID number, name, and age, tube voltage, tube current, imaging date, imaging Since the photographing condition information such as time is required, the X-ray transmission image of the patient is imprinted on the X-ray film, and at the same time, these data are imprinted on a part of the X-ray film as the photographing information. In order to imprint this photographic information, a method is known in which the reflected light when the surface of the card on which the photographic information is recorded is illuminated by a lamp or the like is guided to the film through an optical system and exposed.

FIG. 6 is an example showing an outline of the inside of a conventional X-ray imaging apparatus 1. A grit 2, lead 3, a front pressure plate 4, and an intensifying screen 5 are arranged in the front part of the X-ray imaging apparatus 1, and an intensifying screen 6 and a rear side pressure plate 7 are tiltably arranged behind them. A scraping roller 8 is provided above the intensifying screen 6 and the rear pressure plate 7. Further, a supply magazine 10 for accommodating an unphotographed film F is provided in the center of the X-ray imaging apparatus 1, and a storage magazine 11 for accommodating a photographed film is arranged in the rear part. An information light emitting section 12 is provided in the upper part of the X-ray imaging apparatus 1. In addition, 13 is a roller pair and 14 is a guide plate.

FIG. 7 is a sectional view of the information light emitting portion 12 of FIG. 6 viewed from the direction A. A card 15 in which information is written is freely inserted into and removed from the side of the information light emitting unit 12, a mirror 16 is provided in front of the card 15, and a lens 17 is arranged in the reflecting direction of the mirror 16. The film F ′ is illuminated with the reflected light of the card 15 illuminated by a lamp (not shown).

In order to perform photographing, one film F is taken out from a supply magazine 10 in which unphotographed films are stored by a film separating mechanism 9 composed of a suction cup or the like, and a roller pair 13 as a conveying means and The guide plate 14 conveys the rear intensifying screen 6 to the upper end of the rear pressure plate 7. After the film F is fed to a predetermined position on the rear intensifying screen 6 by the scraping roller 8, the film F is held on the rear pressure plate 7 by a suction cup (not shown). After driving the scraping roller 8 in the direction of arrow c, the rear pressure plate 7 is driven.
Is driven in the direction of arrow a to press it against the front pressure plate 4 to which the front intensifying screen 5 is attached, and the film F is brought into close contact with the front and rear intensifying screens 5 and 6. The front and rear intensifying screens 5 and 6 are preliminarily cut out at a portion corresponding to the photographing information imprinting position on the film F so that the X-ray transmission image is not imprinted.

After the film F is brought into close contact between the front and rear intensifying screens 5 and 6 so that the film can be photographed, X-rays are emitted from the X-ray tube and the X-rays transmitted through the patient are transferred to the intensifying screens 5 and 6. Due to the fluorescent action, it is imaged as an X-ray image on the film F in a region other than the region in which the photographing information is imaged.

After the photographing is finished, in order to store the photographed film F'in the storage magazine 11, the rear pressure plate 7 is driven in the direction of arrow b and the scraping roller 8 is driven in the direction d. Then, the film F ′ is sent to the roller pair 13 by the scraping roller 8, and is conveyed to the storage magazine 11 by the roller pair 13 and the guide plate 14. Then, during the transportation, the film F ′ is temporarily stopped at the position shown in FIG. 1 for imprinting data.

A card 15 on which photographing information is written is inserted as shown in FIG. 7, and the card 15 is illuminated by a lamp (not shown) so that reflected light including information on the card 15 is reflected by the mirror 16 and the lens 17. The film is exposed to the photographing information recording position on the film F'through.

After the data is imprinted, the film F'is
Transport is resumed and stored in the storage magazine 11. The film F ′ in the storage magazine 11 becomes an X-ray film on which an X-ray image and imaging information which the doctor actually diagnoses through the development process is drawn. Then, the photographic film F'after the image interpretation is stored in the storage envelope in which the photographic information including the identification information of the patient is described so that it can be retrieved later.

In recent years, for the purpose of saving an X-ray image as an electronic file or performing automatic or remote diagnosis with PACS or the like, a method of digitizing a photographic film with a digitizer has been adopted. There is. In this case, the problem is how to associate the X-ray film image of the patient with the imaging information. Currently, the most frequently used method is to input the patient's ID number into a bar code printer, create a bar code label and attach it to a part of the film. This method digitizes the film image and, at the same time, decodes the patient's bar code to establish the correspondence.

[0011]

However, in the above-described method for imprinting the photographing information of the X-ray photographing apparatus, the method for storing the photographing film, and the method for associating the X-ray film image with the photographing information in the digitizer, respectively. The following problems are occurring.

In the conventional method in which the surface of the card 15 on which the photographing information is recorded is imaged by using the reflected light when illuminated by a lamp or the like, the card 1 on which the photographing information is recorded for each patient.
5 must be created in advance or on the spot, and each time the patient changes, go to the radiography room from the X-ray operation room and enter the card 1
The cumbersome operation of having to replace 5 is necessary. Further, since the photographing information imprinted on the film F ′ is reversed in black and white, there is a problem that it cannot be seen unless it is applied to the Schaukasten.

Further, in order to solve this drawback, a fluorescent display tube, an LED, an LCD, instead of the information emitting section 12 of FIG.
A method of imprinting by using a display module such as a CRT is also adopted. However, there are problems that the Chinese character and the bar code cannot be imprinted with the LED, the contrast is low with the LCD and the character quality is not good, the CRT is expensive, and the shape is large, so that extra space is taken up. .

Further, in the conventional method of storing a photographic film, a troublesome work of transferring the photographic information such as a photographic recording card or the photographic information described on the film to a storage envelope is required, and an erroneous entry or There is a problem that the photographic film is inserted incorrectly.

Regarding the method of associating the X-ray film image with the photographing information when digitizing the photographing film, there is a drawback that an input error is made at the time of creating the bar code or a mistake is made when the bar code is stuck on the film. .
In other words, reading the ID number printed on the film and inputting it into the barcode printer is easy to make an input error because it is done manually, and there is a correspondence when there are multiple films when sticking to the film. This is because it is difficult and may be pasted by mistake.

An object of the present invention is to solve the above-mentioned problems and to provide a means for printing photographing information on a recording medium, thereby eliminating troublesome and erroneous work for an operator.
An object of the present invention is to provide an X-ray imaging apparatus capable of performing high-quality imprinting easily and at low cost.

[0017]

In order to achieve the above object, an X-ray imaging apparatus according to the present invention comprises means for imaging an X-ray transmission image of a subject on a first recording medium, and second recording. And a means for printing photographing information on the medium.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the embodiments shown in FIGS. FIG. 1 shows an X-ray imaging apparatus 21.
FIG. The X-ray imaging apparatus 21 has a print transport unit 22 that prints shooting information on a recording medium and transports the recording medium.
Is also provided, and an operating console 23 for operating the X-ray imaging apparatus and editing the imaging information is connected. The operating console 23 is provided with buttons for operating the X-ray imaging apparatus, inputting and editing information. Key to display the status of the device,
It consists of a display for confirming the entered information. In addition, a magnetic card reader,
External information input device 24 such as bar code reader and HIS
Is connected.

FIG. 2 is a print conveying section 2 viewed from the direction A in FIG.
It is sectional drawing containing 2. In addition, the same reference numerals as those described in the above conventional example represent the same or equivalent members.
A roll paper 32 that prints shooting information is wound around the supply roll 31, and a conveying roller 33 is provided along the pull-out direction of the roll paper 32, a printing mechanism 34 that prints shooting information on the roll paper 32, and a cutting mechanism 35 are provided. Print mechanism 3
4 is a printing method such as a dot impact method, a bubble jet method, an inkjet method, or a heat sensitive method.
In addition, the X-ray imaging apparatus 21 has an imprinting window 2 for imprinting the imaging information described on the roll paper 32 on the film F ′.
1a is provided.

FIG. 3 is a block circuit configuration diagram. The X-ray imaging apparatus 21 has a built-in grid 3, front pressure plate 4, front intensifying screen 5, rear pressure plate 7, and imaging unit 52 including a rear intensifying screen 6, a photo timer 53, and imaging device control means 54. Has been done. The output of the photographing device control means 54 is the tube control means 55.
To the X-ray tube 56, the irradiation field diaphragm control unit 57 to the irradiation field diaphragm 58, and the data storage unit 60 in the imaging information editing unit 59.

In the photographing information editing section 59, the output of the data storage means 60 is connected to the data display means 61, the data selection display means 62, the data rearrangement display means 63, and the command reply means 64. The outputs of the information input means 65 and the external information input device 24 outside are connected to the information input control means 66, and the output of this information input control means 66 is the data storage means 60 and the imaging control means in the X-ray imaging apparatus 21. 54, respectively. Further, the output of the command reply means 64 of the photographing information editing section 59 is the imprinting section 6
7 is connected to the imprint control means 68, and the output of the imprint control means 68 is the print control means 69 and the conveyance control means 7.
0, light emission control means 71, respectively.

By pressing the photographing start button on the console 23 of FIG. 1, the X-ray film is conveyed to the photographing section as described in the conventional example, and the X-ray film is intensified by the front and rear pressure plates 4 and 6. Prepare for shooting by adhering to # 5 and # 6. Then, the X-ray imaging apparatus 2 is provided with the imaging information of the patient to be imaged by using the keyboard of the console 23 and the external information input device 24.
Send to 1. The information input at this time is patient information such as the patient ID, name, age, and sex, and imaging conditions such as imaging tube voltage, imaging tube current, irradiation field range, and photo timer setting values.

The information input from the information input means 65 and the external information input device 24 in FIG. 3 is sent to the data storage means 60 via the information input control means 66 to be stored therein, and the X-ray tube control and the irradiation field are performed. The imaging conditions such as the imaging tube voltage, the imaging tube current, the irradiation field range, and the set value of the photo timer 53 necessary for control are transmitted to the imaging device control means 54. The photographing device control means 54 sets the time of the photo timer 53, and transmits the information of the photographing tube voltage, the photographing tube current, and the irradiation field range to the tube control means 55 and the irradiation field diaphragm control means 57 to meet the required conditions. To be able to shoot.

On the other hand, the data in the data storage means 60 is displayed on the display by the data display means 61.
At this time, the photographing device control means 54 to the data storage means 6
Types of grid 3 sent to 0, types of intensifying screens 5 and 6,
Of the information on the apparatus such as the image capturing time, the image capturing time is not determined until the X-ray is exposed, so it is represented by another symbol, and the symbol and the time of exposure are replaced at the same time as the exposure.

Information to be printed among these data is selected by the data selection display means 62, and the data rearrangement display means 63 is selected.
To sort into the required format. This rearrangement work includes character code level conversion and image dot level conversion, in addition to character arrangement. For example,
Converts the input half-width ID number, name, etc. to full-width, creates a barcode pattern from the ID number, enlarges and reduces characters, creates graphic objects such as frames and ruled lines, and reverses them. There are things to do.

Since the print format edited by the data selection display means 62 and the data rearrangement display means 63 described above does not change for each subject, several types of formats are registered in advance, You may do by pushing the corresponding button on the console 23.

The operator looks at the display after rearrangement and confirms that the input information matches the patient and the imprinting format is required, and then presses the enter button on the console 23. By pressing this confirmation button, the photography prohibition state is released and X-ray exposure becomes possible.

When the X-ray is irradiated by pressing the X-ray irradiation switch, the photo timer 53 is set and the X-ray irradiation time is controlled so that a desired density can be obtained. That is,
When the photo timer 53 reaches the set value after the X-ray exposure, the imaging device control means 54 sends a control signal to the tube control means 55 to stop the X-ray exposure. Simultaneously with the exposure, the photographing device control means 54 sends the photographing time to the photographing information editing part 59, exchanges it with the above-mentioned symbol indicating the photographing time, and the command reply means 64 sets the format set by the data rearrangement display means 63. And sends a command to the imprinting section control means 63 so that the printing can be performed. The print control unit 69,
The conveyance control unit 70 controls printing and conveyance to perform printing.

The printing mechanism 34 shown in FIG. 2 prints on the roll paper 32 by moving the print head up and down and in the vertical direction on the paper surface based on the transmitted command. Alternatively, all the data to be transmitted may be dot data, and printing may be performed on the paper surface of the print head by a combination of the vertical direction and the feeding of the transport roller 33. The printed photographing information is conveyed to the imprint window 21a of the X-ray photographing apparatus 21 by the conveying roller 33.

On the other hand, after the X-ray exposure, the film in the photographing section is conveyed to the position of the film F'in the conventional example shown in FIG. At this position, the lamp irradiates the photographing information on the roll paper 32, and the reflected light is guided through the mirror 16 and the lens 17 onto the film F ′ to be imprinted. FIG. 4 shows an example of the shooting information D imprinted at this time. The upside-down direction of the shooting information to be printed is the mirror 16 and the lens 1.
7. It depends on the layout of film F '.

When the imprinting is completed, the film F'is collected and the next photographing cycle is started. At this time, the roll paper 32 is conveyed from the imprinting position depending on the situation. When the imaging information of the next patient is input between the exposure and the completion of the imprinting, this data is stored in the data storage means 60 shown in FIG. When the patient is photographed, the information is exchanged with the photographed information. Also, the roll paper 32 that has been imprinted
Can be cut by the cutting mechanism 35 at the exit of the print conveyance unit 22 and stored as an irradiation recording card.

Further, instead of the roll paper 32 as a recording medium, a strip-shaped paper on which a label to be attached to a photographed film storage envelope and a bar code for the correspondence between the film and the patient in the digitizer can be imprinted, For example, a label such as adhesive paper may be used to print the format.

FIG. 5 shows an example of printing on the label 81 in that case. D is the format, and B is the bar code of the ID number in the photographing information of the format D. The information necessary for printing and the information necessary for converting into the barcode B are input to the X-ray imaging apparatus 21 through the console 23 and the external information input unit 22. While viewing the display on the console 23, the desired data is selected and the imprinting format D is set. In this case, format D
It is necessary to set two types, that is, and the barcode B. When the film F ′ is conveyed to the imprinting position after the exposure, the format D and the bar code B printed on the label 81 are imprinted on the film.

Therefore, when digitizing an X-ray image of a patient by a digitizer, it is not necessary to attach a bar code label to the X-ray film after development.
Therefore, it is of course released from the troublesome work of sticking the bar code label, but the mismatch between the patient image and the bar code information is eliminated, and the reliability when digitizing the X-ray film image is improved. To do.
Further, even when the film F ′ is stored in the storage envelope, since the format D of the label 81 can be associated with the film F ′, it is possible to avoid accidentally attaching a different label 81 to the storage envelope. Furthermore, if perforations are provided in the label 81 so that it can be easily cut, or if a band-shaped label that is divided in advance for each format is used, it does not take much time.

In this example, the bar code is used as the geometric pattern, but it is also possible to use a medical record code or the like. Further, not only the data for the correspondence between the film and the patient, but also the information necessary for reading the grid, the intensifying screen, the type of the film, etc. by the digitizer may be coded.

[0036]

As described above, according to the X-ray imaging apparatus of the present invention, by providing the means for printing the imaging information on the recording medium, the erroneous operation is eliminated with good operability and the high-quality imprinting is performed. It becomes possible to realize it at low cost and easily. Also, by printing the required shooting information in multiple formats on the recording medium, it is possible to eliminate the trouble of creating a label to be attached to a storage envelope and a barcode to be attached to a photographic film to be digitized. It is also possible to eliminate an erroneous correspondence between the image read in and the patient ID number.

In particular, if a means for printing the photographing information on the recording medium, a means for conveying the recording medium to the imprinting position, and a means for moving the recording medium from the imprinting position after the imprinting are completed, the operability is good. High-quality imprinting can be achieved at low cost. Further, since it is possible to obtain the photographing information from an external information input device such as a magnetic card or HIS (Hospital Information System), which is becoming mainstream recently,
Imprinting with less burden on the user can be realized.

Further, if the recording medium is provided with means for printing required photographing information in a plurality of formats, means for conveying the recording medium to the imprinting position, and means for moving the recording medium from the imprinting position after the imprinting is completed. It becomes possible to eliminate the trouble of creating a label to be attached to the storage envelope and a barcode to be attached to the digitizer, and to eliminate the erroneous correspondence between the storage envelope and the film, the image read by the digitizer and the patient ID number.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an X-ray imaging apparatus.

FIG. 2 is a cross-sectional view of a print conveyance unit.

FIG. 3 is a block circuit configuration diagram.

FIG. 4 is an explanatory diagram of a printing example.

FIG. 5 is an explanatory diagram of a printing example.

FIG. 6 is a configuration diagram of a conventional example.

FIG. 7 is a cross-sectional view of an information light emitting unit.

[Explanation of symbols]

 17 Lens 16 Mirror 21 X-ray Imaging Device 21a Imprinting Window 22 Printing / Conveying Section 23 Operator's Table 24 External Information Input Device 32 Conveying Roller 34 Printing Mechanism 32 Roll Paper 35 Cutting Mechanism 59 Imaging Information Editing Section 67 Imprinting Section 81 Label

Claims (4)

[Claims] 1. An X-ray imaging apparatus comprising means for photographing an X-ray transmission image of a subject on a first recording medium and means for printing photographing information on a second recording medium. . 2. The X-ray imaging apparatus according to claim 1, wherein the first recording medium is an X-ray film, and the second recording medium is a recording paper. 3. The X-ray imaging apparatus according to claim 2, wherein the recording paper is roll paper. 4. The X-ray imaging apparatus according to claim 2, wherein the recording paper is adhesive paper.