JPS63163334A - Cassetteless x-ray fluoroscopic and photographing device - Google Patents

Abstract

PURPOSE:To enable continuous quick photography without incorporating a continuous photographing device by passing and receiving a film not only at a stand-by position, but also at a photographing position. CONSTITUTION:A driving means is so provided that a carriage 4 at a front stage, a composite magazine 5 of a supply magazine and a storage magazine at a rear stage parallel to the carriage 4, and a film supply and storage part 6 arranged at the side part of them, are driven reciprocally between a photographic position part in front of an image intensifier 3 and a stand-by position part isolated from it. Then when fluoroscopy is performed, those three parts 4-6 are driven to the stand-by position part, but when continuous photography is desired without the fluoroscopy, the three parts 4-6 are driven to the photographing position part and fixed. Consequently, continuous quick photography is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette-less X-ray fluoroscopic photographing table, and more specifically, the present invention relates to a cassette-less X-ray fluoroscopic photographing table, and more specifically, a so-called cassette-less quick-photographing system in which several X-ray films for direct imaging are set in one magazine and used sequentially. The present invention relates to an improvement of an X-ray fluoroscopy table equipped with a device.

(b) Prior art Traditionally, cassette telephoto shooting devices have a standby position and a shooting position, between which the film and the intensifying screen are
In addition to the film carriage, there is a supply magazine in which a large number of unshot films are set, a storage magazine for storing shot films, and a storage magazine that takes out film from the supply magazine and supplies it to the film carriage, and stores the shot film in the storage magazine. It is equipped with a film supply and storage section.

In such a tM transmission system, a position that does not obstruct the incidence of X iJ into the image intensifier (1, 1,) during fluoroscopy, that is, a position distant from I, I, is set as the waiting position. The film tray is being transferred to and from the carriage. Further, a magazine and a film supply/storage section are fixedly arranged at this position, and a photographing signal is sent to move the carriage to the photographing position.

(c) Problems to be Solved by the Invention In recent years, because the cassette-less X-ray fluoroscopic imaging table is used for multiple purposes, there have been models that have a continuous imaging function for circulatory system applications.

However, at present, a rapid shooting function has not been achieved in which images are taken continuously and rapidly without fluoroscopy.

Even if you do not perform fluoroscopy, the process is to return the film carrier to the fluoroscopy position (standby position) after taking a picture, pass the film, and then return it to the photographing position. Since film cannot be continuously supplied at the shooting position, a separate continuous shooting device must be installed in the case of continuous shooting.

An object of the present invention is to enable film to be transferred not only at the standby position but also at the photographing position, so that continuous film casting for photographing can be carried out quickly without the need to incorporate continuous reading Fukueji equipment. The purpose of this project is to provide an X-ray fluoroscopic imaging table.

(d) Means for solving the problem The purpose of the above is as follows: A top board on which the person is lying, an X-ray tube, an image intensifier, and an image intensifier arranged so as to sandwich the top board and face each other. A cassette-less X-ray fluoroscope, which is equipped with a cassette-less quick-photographing device having a photographing position section disposed in front of the camera and a waiting position spaced apart by the photographing position section, and having a film knife that reciprocates in the same direction. This can be achieved by including a film magazine that reciprocates between the surface position parts and a film supply/storage section that reciprocates between the two position parts in the photographing stand.

(e) A carriage is placed in the front stage of the operation, a composite magazine consisting of a supply magazine and a storage magazine is placed in parallel with the carriage, and furthermore, a film supply/storage unit arranged on the side of these is an image intensifier. A driving means is provided to reciprocate between the photographing position located in front of the image capturing position and the waiting position located further away from the photographing position. When continuous shooting is desired without doing so, by driving and fixing the three parts at the shooting position, the film can be received and transferred quickly.
Therefore, shooting is also done quickly.

(f) Example A preferred embodiment of the invention will be explained based on the drawings.

FIG. 1 is a schematic cross-sectional view showing one embodiment of a cassette-less snapshot photographing device.

FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG.

FIG. 3 is an exemplary diagram showing the overall arrangement.

The quick-shot photographing device 1 is formed long in the direction perpendicular to the longitudinal direction of the top plate 2 so as to cross the top plate 2 between the top plate 2 and the image intensifier 3, and is located on the front side (
The photographing position is the part where the xfJA cone that enters the image intensifier 3 passes on the left side in Figure 1, and the part on the back side (the back side when viewed from the front side, the right side in Figure 1). is the waiting position in the part where the X-ray cone does not pass.

The cassette telephoto shooting device 1 includes a film carriage 4 that moves back and forth between a shooting position and a standby position.
4' indicates the film carriage when it is moved w2 to the photographing position.

On the other hand, at the standby position on the side that is not exposed to X-rays, there is a magazine 5 (in this example, a supply magazine and a storage magazine are integrated) for loading and storing unexposed film.
can be seen. This magazine 5 can be moved back and forth between the standby position and the photographing position.

In addition, a film magazine 5 is provided on the back side of the quick-shooting device 1.
A film supply/storage section 6 is provided which performs film feeding drive for supplying unshot film to the film carriage 4 and storing shot film from the film carriage 4 into the magazine 5. It is movable.

The magazine 5 has a two-layer structure, and has an upper supply magazine section and a lower line storage magazine section.

The supply magazine section has a bottom plate 8 pushed up by a spring 7, on which several films 10 are placed one on top of the other, and a roller 11 contacts the topmost film and The film is taken out by the rotation of the roller.

This roller 11 is pivotally supported on both sides of the magazine 5, and -@(
The film supply section (film supply section) is connected to a film drive motor 12 on the film supply section side by means of magnetic force and a rotatable electromagnet 13 via a chain and a sprocket.

On the other hand, the film carriage 4 has a belt 15 and rollers 16 for holding the film sent from the magazine and moving it within the intensifying screen 14. 17.

One end of the roller 17 (on the film supply section side) is magnetically connected to a rotatable electromagnet 18 via a chain and a sprocket to the film body motor 12 on the film supply section side.

When the carriage 4, magazine 5, and film supply/storage section 6 are moved to the dish-shaped position and the electromagnets 13 and 18 are working, the film carriage 4, magazine 5, and film supply/storage section 6 are integrated; The film drive of the film supply section is film l, carriage 4 and magazine 5.
The film carriage 4 is placed at the 11th shadow position.
It becomes possible to supply the film in a closed state.

It is important to note that the magazine 5 or the film supply/storage section 6 is provided with a lead or similar material between the film carriage 4 and the magazine 5 to prevent the films in the magazine from being exposed to X-rays. ing.

When the film carriage 4 is moved to the front side and the electromagnet 13 is turned off, the magazine 5 is neatly cut and can be taken out and set. The ejected magazine is shown as 5. Also, the electromagnet is removed, and the film carriage 4 and its drive are removed! Once the connection to the ij source is broken, the film carriage can only be removed. The removed carriage is shown as 4''.

Of course, if the electromagnet 18 is operated for one day in the standby position, the film is fed, the electromagnet 18 is turned off, and only the carriage 4 is moved to the photographing position, 1.1. General fluoroscopic imaging is possible by controlling the X-ray exposure time using photometry on the output surface.

In the illustrated embodiment, an electromagnet is used to connect and separate the film carriage 4, film magazine 5, and film supply/storage section 6, but a joint mechanism that can perform similar connections and separations may be used.慇（：”s J
-,Q'.

(g) Effects According to the present invention, continuous quick-shot photography becomes possible, and the applicability of the fluoroscopic photographing platform is expanded.

The film carriage is easy to remove, and intensifying screens for various types of films can be easily replaced by replacing the film carriage.

The magazine is easy to set and remove, and the film is convenient to handle.

The film carriage, magazine, and film storage compartment are separated and can be replaced like cartridges, making maintenance easy.

A single drive source can move the film carriage and set the magazine, making the device compact and simple.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a main part showing one embodiment of the present invention, FIG. 2 is a concave view taken along line 1--2 in FIG. 1, and FIG. 3 is an embodiment showing the overall arrangement. 2 is the top plate, 3 is the image intensifier, 4 is the film carriage, 5 is the magazine, and 6 is the film supply/
A storage section, 12 is a motor, 13 and 18 are electric stones, 21 is a base, 22 is a frame, 24 is a support, and 25 is an XFA tube. Patent applicant: Shimadzu Corporation r−'−=−”. Agent: Patent attorney Ike 1) Sadao.

Claims (1)

[Claims] A tabletop on which a patient lies, an X-ray tube and an image intensifier arranged to face each other across the tabletop;
A cassette-less quick-shot photographing device is provided, which has a photographing position placed in front of the image intensifier and a standby position separated by the photographing position, and has a film carriage that reciprocates between the two positions. Cassetteless X
In the fluoroscopic photographing table, the quick-photographing device includes a film magazine that reciprocates between the two position parts, and a film supply/storage section that reciprocates between the two position parts. Less X-ray fluoroscopy table.