JPS5835211Y2 - X-ray fluoroscopy equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved spot shot X-ray fluoroscopic imaging device.

A conventional X-ray fluoroscopic imaging apparatus is constructed as shown in FIG. 1 and FIG. 2, which is a side sectional view taken along the line XX'.

That is, a top plate 4 is supported by pillars 2 installed in the floor 1 on which a patient 3 lies; The pedestal 7 is attached so as to be slidable in the direction (abbreviated as "direction", the head side of the patient 3 to be placed is referred to as upward, and the foot side is referred to as downward).
, an X-ray source 9 attached to the gantry 7 via a frame 8, an image intensifier 10, an optical system 1, and an image intensifier 10, an image intensifier 10, an optical system 1, etc.
1. An image receiving system 13 consisting of a television camera 12, etc., and a fluoroscopic imaging position 14 that is installed on the pedestal 7 and is on the X-ray path during imaging.
A spot shot 18, etc., containing a film case 17, which moves by means of a guide bearing 16, etc., is provided at a standby position 15, where the X-rays from the X-ray source 9 are not irradiated when fluoroscopy is set.

In the conventional apparatus described above, the system consisting of the X-ray source 9 and the image receiving system 13 is fixed integrally with the spot shot 18, and the first In the illustrated example, there is a drawback that it is not possible to move downward, that is, the range of movement of the fluoroscopic imaging unit, that is, the range of the region of the patient 3 that can be imaged using X-ray fluoroscopy is narrowed.

The object of the present invention is to improve this drawback and provide an X-ray fluoroscopic imaging device that can expand the range of fluoroscopic imaging in an apparatus with the same structural dimensions as the above.

The details will be explained below.

FIG. 3 and FIG. 4, which is a side cross-sectional view taken along line YY', show one embodiment of the present invention.

In this figure, parts with the same functions as in Figures 1 and 2 are given the same numbers, 1 is the floor, and 2 is installed on the floor 1 and supports the top plate 4 on which the subject 3 is placed. 5 is a rail fixed to both sides of the top plate 4 in the longitudinal direction, and 21 is a guide roller 6 that engages with the rail 5. A frame 8 is fixed to the frame 21 and has an X-ray source 9 attached thereto. A frame 13 is attached to the frame 21, and includes an image intensifier 10 and an optical system 1.
1. An image receiving system 22 consisting of a television camera 12, etc. has guide rails 23 fixed on both sides in the vertical direction to engage with guide rollers 24 provided on both sides of the pedestal 21, and a guide bearing 25 is interposed inside. This is a case-shaped spot shot that is used for fluoroscopy and imaging by moving the film case 17 between the standby position 15 and the fluoroscopic imaging position 14.

As mentioned above, the features of the present invention are that the length of the mount 21 in the vertical direction is short enough to cover the perspective photographing position 14, and the spot shot 22 that houses the film case 17 is provided.
is made to be able to slide so as to protrude vertically with respect to the pedestal 21.

In the device with this configuration, the pedestal 21 is at the top, the spot shot 22 protrudes downward, and the standby position 15 of the film case 17 is at the protruding part, and then the pedestal 21 moves downward and interferes with the support column 2' below. If this occurs (in the past, it was impossible to move the pedestal 21 any further downward), use Spot Shot 2 as shown in Figure 5.
By sliding the spot shot 2 upward relative to the pedestal 21 and exchanging the previous standby position 15 and the perspective photographing position 14, the pedestal 31 is moved further downward by the amount that the downward protrusion of the spot shot 22 disappears. This allows for fluoroscopy or photography to be performed further below the patient.

That is, it is possible to expand the fluoroscopic imaging range or the range in which a patient's affected area can be diagnosed.

In this case, when the frame 21 is above, the film case 1
When the camera 7 jumps from below to the top and the mount 21 is at the bottom, the film case 17 jumps from above to the bottom to perform quick-shot photography after fluoroscopy.

As is clear from the above description, the present invention is effective in allowing diagnostic imaging of a wide range of affected areas without moving the patient, using an apparatus that occupies the same space as conventional devices.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional X-ray fluoroscopic imaging device, Fig. 2 is a side sectional view taken along line xx' in Fig. 1, Fig. 3 is a front view of the first embodiment of the present invention, and Fig. 4. 3 is a side sectional view taken along the line YY' in FIG. 3, and FIG. 5 is a front view of the first embodiment of the present invention showing another perspective photographing position. 4: Top plate, 9: X-ray source, 13: Image receiving system, 21: Frame, 1
7: Film case, 22nispot shot.

Claims (1)

[Scope of utility model registration request] A film for fixing and storing an X-ray source and an image receiving system on a pedestal that is slidably supported on the top plate on which the subject is placed and is arranged facing each other with the top plate sandwiched between them. In the X-ray fluoroscopic imaging apparatus, the mount is provided with a spot shot for fluoroscopy and imaging by having a mechanism for transporting the case and transporting the film case between a standby position and a fluoroscopic imaging position. An X-ray fluoroscopic imaging apparatus, characterized in that a spot shot is supported so as to be slidable in the longitudinal direction of the top plate with respect to the mount.