JPH01167742A - Cassetteless high speed photographic device - Google Patents

Abstract

PURPOSE:To obtain an economical device in which the sharpness of obtained images is not lowered by using both X-ray film and accumulation type fluorescent material sheet (IP) in one device. CONSTITUTION:At the time of using the IP, the IP can be used by attaching a supply magazine 12 and a housing magazine 13 for the IP and displacing a holder part for the X-ray film for a holder part 101 for the IP. After photographing is completed, the holder part 101 for the IP is restored to an original position and the IP is housed in the housing magazine 13 for the IP by a housing means 21. Now, bar codes sticked to the IP are read by a bar code reader 160 in a carrier part 20. Thus, both X-ray film and the IP can be used in the title device and when a reader becomes faulty the device can be switched to photographing by the X-ray film. Both X-ray film and the IP can be used with a simple operation and the sharpness of the obtained image is not lowered.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a medical X-ray diagnostic device, and in particular to a cassette-less quick-shooting system that enables the use of both an X-ray film and a stimulable phosphor sheet in one device. Regarding equipment.

[Conventional technology]

In medical X-ray diagnostic equipment, X-rays that have passed through the subject are
, I, (Image Intensifier
Fluoroscopic imaging tables are widely used, which can take images with X-ray film immediately when necessary while observing the situation. The snapshot device is one of the components of this fluoroscopic photographing table, and is a device that immediately performs the photographing on X-ray film. For a while after the development of quick-shot devices, so-called cassette-type quick-shot devices were mainly used, in which a cassette containing X-ray film was moved from the standby position to the shooting position, the image was taken, and then returned to the standby position. Ta. However, this cassette-type quick-shooting device is generally capable of taking only one image at a time, and requires replacing the cassette each time one image or one person is photographed. For this reason, there has been a demand for a quick-shooting device that is labor-saving and that can take pictures more quickly.

The solution to these problems was a quick-shooting device called a cassette-less quick-shooting device. This cassette-less photographing device takes out X-ray films one by one from a supply magazine containing a large number of X-ray films, places them between two intensifying screens, and then moves to the photographing position to take photographs. Later, it was designed to automatically store the camera repeatedly in a storage magazine, and it became mainstream, replacing the cassette-type quick copy device.

On the other hand, in recent years, stimulable phosphor sheets have come to be used instead of X-ray films. Accumulative phosphor C (
What is an Imaging Plate (hereinafter abbreviated as IP)? When radiation such as X-rays and γ-rays is irradiated, a part of the energy of the radiation is accumulated, and then when excitation light such as visible light is applied,... A flexible material plate is coated with a phosphor that causes stimulated luminescence in response to accumulated energy.

This stimulated luminescence is read by a photoelectric element or the like, and the read signal is used to obtain image information.

Finally, the image is created on a CRT or hard copy medium and used for diagnosis. This IP has the characteristic that it can be used repeatedly, has better image quality than those using conventional X-ray film, reduces the exposure dose to the subject, and the image information is digital. It has the advantage of being easy to store and search images. For this reason, it is considered to be of high value.

However, this IP has conventionally been used in a cassette-type quick-shooting device in a fluoroscopic imaging table.

[Problem that the invention seeks to solve]

As mentioned above, a snapshot device using IP is a cassette type. For this reason, cassette-less type rapid copying devices have come to be required for the same reasons as were required for X-ray film.

However, when constructing a cassette-less snapshot device using IP (hereinafter referred to as a blade-set IP snapshot device), the process of reading the stimulated luminescence using a photoelectric element or the like and converting it into an image on a CRT or hard copy medium is necessary. (hereinafter, a device with this function will be abbreviated as a reading device). For this reason, when assuming an IP-only cassette-less snapshot device, in the unlikely event that the reading device breaks down, a cassette-less IP fluoroscopic imaging table (a cassette-less IP fluoroscopic imaging table is a fluoroscopic imaging table equipped with a cassette-less IP fluoroscopic imaging device) can be used. Even if it were possible,
Diagnosis becomes difficult. Therefore, it is conceivable that the user has a plurality of reading devices to prepare for backup in the event of a failure, but these reading devices are extremely expensive (generally several times more expensive than a cassette-less IP fluoroscopic imaging stand system). For this reason, if it is not possible to have a plurality of reading devices, it is necessary to have a cassette-less fluoroscopic imaging stand that uses conventionally used X-ray film as equipment. In addition, if you want to purchase a cassette-less IP fluoroscopic imaging table and reading device in the future and use it for diagnosis, the cassette-less fluoroscopic imaging table that uses the X-ray film that you have been using until then can be used as a backup as described above when you purchase the cassette-less IP fluoroscopic imaging table. It is good if there is an installation space that can be used as a storage space, but if there is not, there is a problem that it will be wasted. Therefore, in order to solve these problems, we configured a device by combining a conventional cassette telephotography device using X-ray film with an IP mechanism similar to the Haboko mechanism, and It is conceivable to be able to use both film and IP. However, since X-ray film requires an intensifying screen but IP does not, the X-ray film and IP must be placed at a position that is the upper tool during imaging. As a result, in FIG.
-X-ray film, 400--IP) As shown, either the X-ray film 200 or Ir2O3 is positioned quite far from the top plate 6, and the sharpness of the image obtained is reduced due to the increased magnification. descend. Moreover, there is concern that the equipment will become complicated and the cost will increase.

[Means for solving problems]

In order to solve the above-mentioned problems, an a supply section that takes out the X-ray film; a conveyance section that transports the taken out X-ray film;
A removably installed holder section that holds the X-ray film sent from the transport section, a moving means for guiding the holder section to the imaging position, and a storage means for storing the X-ray film after imaging into a storage magazine. In a cassette-less quick-shooting device consisting of an X-ray film storage magazine attachment/detachment section, and an X-ray film storage magazine, an IP supply magazine that stores unphotographed IP in a stack, and an IP storage magazine that stores photographed IP. and a noise erasing device for erasing IP noise provided in the middle of the transport route of the transport unit;
A barcode reader that reads the barcode affixed to P, a means for attaching and detaching the IP supply magazine to the X-ray film supply magazine attaching/detaching section, and a means for attaching/detaching the IP storage magazine to the X-ray film storage magazine attaching/detaching section. This is achieved by a cassette-less copying apparatus equipped with means for enabling and an IP holder configured to be replaceable with the X-ray film holder.

[Effect]

When using X-ray film, install an X-ray film supply magazine and storage magazine.

Then, the X-ray films are taken out one by one by the supply section from the X-ray film supply magazine and sent to the X-ray film holder section via the conveyance section. Thereafter, the camera is moved to the photographing position by the guide means and photographed. After the imaging is finished, the X-ray film holder returns to its original position, and the X-ray film is stored in the X-ray film storage magazine by the storage means. On the other hand, when using IP,
Attach the supply magazine and the storage magazine, and replace the above-mentioned X-ray film holder with the IP holder. This enables the use of IP. In other words,
The IPs are taken out one by one by the supply section from the IP supply magazine and sent to the IP holder section via the transport section. After that, the IP is sent to the IP holder section, moved to the photographing position by the guide means, and photographed. After photographing is finished, the IP holder returns to its original position, and the IP is stored in the IP storage magazine by the storage means. Note that, in this conveyance section, a noise erasing device provided in the middle of the conveyance path erases noise on the IP before photographing, and a barcode affixed to the IP is read by a barcode reader. These allow both X-ray film and IP to be used in the event of failure of the reader described above.

It becomes possible to switch to imaging using X-ray film. For this reason, there is no need to have a cassette-less fluoroscopic photographing stand that uses conventional X-ray film in case the reading device fails. Also, if you first purchase this cassette-less fluoroscopic imaging table and use regular X-ray film, then when you purchase the reader, you can use this cassette-less fluoroscopic imaging table as an I.
It is also possible to switch to P. Moreover, the distance from the top plate for both the X-ray film and the IP can be shortened, and the sharpness of one of the images obtained will not deteriorate compared to the other.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. FIG. 3 is a front view for explaining the general functions of the cassette-less fluoroscopic photographing stand in the embodiment. X-rays (bundle) 5 are irradiated from the X-ray tube device 1 to the subject 2 lying on the top plate 6, and the X-rays transmitted through the subject 2 are 1.1.
4.

The object-transmitted X-ray information from 1.1.4 is displayed on a monitor (when shown) by a video system (not shown). While being observed by a doctor or operator, this X-ray image is transferred to an X-ray film or IP camera using a quick copy device 3 as necessary.
Photographed on. The transmitted X-ray information of the subject 2 photographed on an X-ray film or IP is developed in the case of an X-ray film, and in the case of IP, it is passed through the reading device and converted into an image, which is used for diagnosis of the subject 2.

FIG. 4 is a perspective view showing the general functions of the cassette-less copying apparatus, and shows the case where X-ray film is used. The snapshot device 3 is removably attached with an X-ray film supply magazine 10 that stores unexposed X-ray films and an X-ray film storage magazine 11 that stores X-ray films that have been photographed. In addition, this photo bag @
3 is provided with an X-ray film holder section 100 for holding X-ray films fed one by one from the X-ray film supply magazine 10. This holder part 1
00 is a guide member 110 attached to the support frame 101,
It is made possible to move along line 120 to a photographing position 111 (shaded area) by a drive mechanism based on a known technique (not shown), and after moving to this photographing position 111,
Photographing of the subject 2 is performed. At the end of imaging, the holder section 100 returns to the position shown by the solid line, and the X-ray film is stored in the storage magazine 11.

FIG. 5 is an explanatory diagram for explaining an example of the internal configuration of the snapshot device 3, and shows a case where an X-ray film is used. The X-ray film supply magazine 10 is attached to the supply magazine attachment/detachment section 14 of the snapshot device 3.
The X-ray film supply magazine 10 stores unexposed X-ray films 200 in a stacked manner. When an operator wants to take an image, the X-ray film is taken out one by one by the supply unit 19, which consists of the suction pad 22 and its drive mechanism (not shown), and its leading end is inserted between the transport rollers 65 and 66. It looks like this.

The conveyor rollers 65, 66 are conveyor rollers 67.68°71.
72, a guide plate 63, a large roller 64, and conveyance rollers 50, 51, 5 forming part of a storage means to be described later.
2, 53, 54, 55, and 56, together with a part of the belt 301, form the conveying section 20, and these rollers and the belt are driven by a drive mechanism not shown. In addition, the transport section 2
0 is provided with a noise canceling device 30 (this noise canceling device operates only when the IP is used) that cancels the noise of the IP when the IP is used, which will be described later, and its control device (not shown). It is being Thereby, the X-ray film 200 taken out from the X-ray film supply magazine 10 is conveyed toward the conveyance rollers 71 and 72. The holder section 100 includes a container shaped like a container with one side of the conveyance rollers 73 and 74 driven by a drive mechanism different from the roller and belt drive mechanisms used in the conveyance section 20 and the storage means described later. Member 36
, a plate member 33, a hinge 37 for movably supporting the plate member 33 within the vessel member 36, and a plate member 33.
and intensifying screens 31 and ' 32 attached to the device member 36.
, contact mechanisms 39A and 39B consisting of springs for bringing the X-ray film 200A inserted between the two intensifying screens 31 and 32 into close contact with the intensifying screens 31 and 32, the plate member 33 and the instrument member. a hose 70 for sucking air between the plate member 33 and the instrument member 36 through a hole drilled in the hole 36 to completely bring the intensifying screen 31, 32 and the X-ray film 200A into close contact with each other; An air suction bag fi (not shown) attached to one end (this air suction device operates only when using X-ray film), and an air suction bag fi (not shown), which is sensitized to prevent air from leaking between the plate member 33 and the instrument member 36 Paper 31.
a flexible backing member 35A provided around 32;
35B, the guide members 110, 120 for moving the holder part 100 to the photographing position 111, a moving means consisting of a drive mechanism (not shown), bearings 45, 46 for connecting the holder part 100 to the moving means, and the container member 36; A supporting member 40.41 that is fixed to and supports the bearings 45, 46, an L-shaped member 80 for opening and closing the plate member 33, a roller 48 that comes into contact with this L-shaped member 80, and an L-shaped member 8o together with this roller 48. .

A support member 47 operates as shown by arrow B to pull down the plate member 33 and rotatably supports this roller 48.
and a drive mechanism (not shown) that performs this operation (however, the roller 48, support member 47, and this drive mechanism are supported from outside the holder portion 100). The holder section 100 having such a structure is
When the wire film is sent, the plate member 33 is moved to the L-shaped member 8.
0° roller 48. It is pulled down by the support member 47 and a drive mechanism (not shown), and the X
A line film is inserted between the plate member 33 and the intensifying screen 31,32 attached to the vessel member 36. And, by the close contact mechanisms 39A, 39B, the hose 70, and the air suction device (not shown) attached to one end of the hose 70,
It is completely brought into close contact with the intensifying screens 31 and 32. Thereafter, the holder part 100 is moved to the photographing position 11 by a moving means consisting of guide members 110 and 120 and a drive mechanism (not shown).
1 and used for photographing the subject 2. After photographing, the holder section 100 is returned to its original position by the moving means. The plate member 33 is an L-shaped member 80.
Roller 48. It is pulled down by the support member 47 and a drive mechanism (not shown). Then, the X-ray film 200A is taken out from the holder section 100 by conveyance rollers 73 and 74. The X-ray film that has been photographed and has been photographed in the holder section 100 is transferred to conveyance rollers 50° 51, 52.
．． 53, 54, 55, 56, 72, large roller 64, belt 301 connecting these, and guide plate 63. The storage magazine is attached to the storage magazine attachment/detachment section 15 by a storage means 21 consisting of a guide plate 69, conveyance rollers 60, 61, a belt 300 connecting these, a guide plate 62, and a drive mechanism (not shown) that drives these rollers and the belt. The film is stored in the storage magazine 11 for X-ray film. Furthermore, this
At the top of the line film storage magazine 11, there is an I
A barcode reader 160 is provided for use when P is used.

Next, the case where IP is used will be explained using FIG. The difference between FIG. 1 and FIG. 5 is the supply magazine 10;
Storage magazine 11 is a supply for IP.

The magazine 12 and storage magazine 13 are replaced, and the holder part 100 is replaced with an IP holder part 101, and the supply part 19, conveyance part 20, and storage means 21 are the same as those when using X-ray film. be. In operation, after the IP is taken out from the storage magazine 13, noise components are removed by the noise canceling device 30, and the IP is removed from the storage magazine 13.
being sent to the holder section 101 for P, and the holder section 1
The operation is the same as that for X-ray film except that there is no close contact between the intensifying screen and the film in step 01, and barcode reading, which will be described later, is carried out inside the storage magazine 13. Therefore, these descriptions will be omitted and only the holder portion 101 will be described. Note that the function of the holder section 101 is almost the same as that of the holder section 100 used when an X-ray film is used, so the structure will be explained and the operation will be omitted. This holder section 101 is connected to the transport section 20 and storage means 21.
Conveyance rollers 75 and 76 are driven by a drive mechanism different from the roller and belt drive mechanism used in A hinge 86° plate member 87 for movably supporting the vessel member 85, a plate member 27 with a low radiation absorption coefficient attached to the vessel member 85, and a plate member 28.
．． IP4 inserted between the above two plate members 27 and 28
Close contact mechanisms 91A and 92B consisting of springs for holding 00A in close contact with these plate members 27 and 28, and holder part 1
01 to the photographing position 111, a moving means consisting of a drive mechanism (not shown), and bearings 83, 84 (4 described in FIG. 5).
5.46) and the bearing 83 fixed to the vessel member 85,
84, an L-shaped member 88 for opening and closing the plate member 87, and this L-shaped member 88.
roller 48. Together with this roller 48, an L-shaped member 88, a support member 47 that rotatably supports this roller 48, which operates as shown by arrow B in order to pull down the plate member 87, and a drive mechanism (not shown) that performs this operation. (However, the roller 48, the support member 47, and this drive mechanism are supported from outside the holder portion 101). The barcode reader 160 (this barcode reader operates only when IP is used) provided on the top of the IP storage magazine 13 allows the barcode affixed to the back of the IP400 to be detected when the IP400 is placed in the IP storage magazine 13. After being stored, it is read. Note that the provision of the plate member 27 and the plate member 28 with low radiation absorption coefficients described above is advantageous for IP
IP4 while moving to the shooting position 111.
This brings about the effect that 00A will not be misaligned.

In the above-described cassette telephoto copying apparatus, the supply magazine attachment/detachment section 14 and storage magazine attachment/detachment section 15 are shared between X-ray film and IP, but this is due to the groove position of each magazine, as shown in FIG. 2, for example. If the shapes are different, it is possible to use one with two grooves.6 However, the shape is not limited to this, as it follows the shape of a magazine generally available on the market. Furthermore, the same supply magazine and storage magazine may be used for X-ray film and IP. Furthermore, as can be seen by comparing Figure 1 and Figure 5, the holder parts for X-ray film and IP film do not have an intensifying screen, backing member, or hose, and the intensifying screen does not have an intensifying screen, backing member, or hose. Although a device having substantially the same mechanism was used except that a plate member was placed instead, the present invention is not particularly limited to this. In other words, it would be good if the holder part could be replaced for X-ray film and for IP.

The cassette telephoto copying apparatus described above is one example of the embodiment of the present invention, but by implementing it, it becomes possible to use both X-ray film and IP in a very simple operation. This eliminates the need to have a cassette-less fluoroscopic imaging table that uses conventional X-ray film as a backup in case the reading device breaks down. , then it becomes possible to purchase a reading device. Furthermore, both the X-ray film and the IP can be kept at a short distance from the top plate, and the sharpness of the obtained image will not deteriorate. Furthermore, the device can be constructed easily and at low cost.

〔Effect of the invention〕

According to the present invention, since both X-ray film and IP can be used in a simple operation, reading film can be
This eliminates the need to have a cassette-less fluoroscopic imaging stand that uses conventional X-ray film for backup in case of a malfunction, and it is extremely valuable as a medical device that cannot afford to have difficulties in imaging due to malfunction. Furthermore, it is economical because a cassette-less fluoroscopy table can be purchased first, conventional X-ray film can be used, and then a reading device can be purchased. Furthermore, both the X-ray film and the IP can be placed at a short distance from the top plate without deteriorating the sharpness of the obtained image. Furthermore, the device can be easily constructed and the cost can be reduced.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the outline of the internal configuration of a snapshot device when IP is used in one embodiment of the present invention, and FIG.
A perspective view of a supply and storage magazine for IP for X-ray film and a front view of the attachment/detachment section of the supply and storage magazine for X-ray film and IP, FIG. FIG. 4 is a perspective view showing the general structure of the speed-photographing device, and FIG. 5 is an explanatory diagram showing the outline of the internal structure of the speed-photographing device when X-ray film is used in one embodiment of the present invention shown in FIG. FIG. 6 is a conceptual diagram when both an X-ray film and IP are used to explain the problems of the prior art of the present invention. 10...X-ray film supply magazine, 11...X
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Claims (1)

[Claims] 1. An X-ray film supply magazine for stacking and storing unexposed X-ray films, an X-ray film supply magazine attachment/detachment section, a supply section for taking out the X-ray film from the X-ray film supply magazine, and a A transport section that transports the X-ray film, a holder section that holds the X-ray film sent from the transport section, a moving means that guides the holder section to the imaging position, and a storage magazine for storing the X-ray film after imaging. A supply for stimulable phosphor sheets for stacking and storing unphotographed stimulable phosphor sheets in a cassette-less quick-shooting device equipped with a storage means for storing, an X-ray film storage magazine attachment/detachment part, and an X-ray film storage magazine. a magazine, a storage magazine for stimulable phosphor sheets that stores the stimulable phosphor sheets transported by the transport section and storage means, and a stimulable phosphor sheet storage magazine provided in the middle of the transport path of the transport section. A noise erasing device for erasing noise, a barcode reader for reading a barcode affixed to a stimulable phosphor sheet, and a stimulable phosphor sheet supply magazine that can be attached to and detached from the X-ray film supply magazine attachment/detachment section. means for making the stimulable phosphor sheet storage magazine removable to the X-ray film storage magazine attachment/detachment section;
A cassette-less snapshot apparatus comprising a holder for a stimulable phosphor sheet which is formed to be replaceable with the holder for the X-ray film.