JPH0428565Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to an X-ray fluoroscopic imaging table, and more specifically, to an under-table tube type fluoroscopic imaging table in which a snapshot device can be moved in the longitudinal direction of the top plate. There is.

[Conventional technology]

In an under-table tube type X-ray fluoroscopic imaging table, for example, as shown in FIG. The object is to be photographed by moving the object closer to the person d until it touches the person d. In order to prevent the snapshot device a from pressing the subject d excessively, touch detection mechanisms f and g are attached to the bottom surface of the snapshot device. These devices use a tape switch or the like, and when the pressure on the subject reaches a certain level, the motor in the drive mechanism that moves the rapid copy device and the X-ray fluorescence intensifier tube up and down is stopped, and the pressure is reduced. When it gets low, the motor is activated again.

[Problem that the invention attempts to solve]

In such a device, when the quick-shooting device a is brought close to the subject d, the support c is moved in the longitudinal direction of the top plate h, and the quick-shooting device is moved toward the subject's head, the quick-shooting device There is a risk that the object may hit the examinee's chin.

An object of the present invention is to provide an improved X-ray fluoroscopy table that can reliably prevent such collisions.

[Means for solving problems]

The X-ray fluoroscopic imaging table of the present invention is also equipped with a touch detection mechanism on the side of the snapshot device located on the subject's head side, and this touch detection mechanism prevents contact between the patient and the snapshot device. This is detected and the movement of the snapshot device is stopped in the longitudinal direction of the top plate, thereby making it possible to prevent a collision between the snapshot device and the subject.

Examples of the X-ray fluoroscopy table of the present invention are as follows:
This will be explained with reference to FIGS. 1 to 4.

〔Example〕

In FIGS. 1 and 2, reference numeral 11 indicates a tilting table. The tilting table 11 includes a top plate 12 for supporting the subject, and is installed on a base 13 so as to be tiltable.

The X-ray tube device 14 is arranged on the lower surface of the top plate 12, and the X-ray fluorescence intensifier tube 15 and the snapshot device 16 are arranged on the upper surface of the top plate 12, respectively. The X-ray tube device 14 is arranged inside the tilting table 11 and fixed thereto. Further, the X-ray fluorescence intensifier tube 15 and the snapshot device 16 are attached to a column 17 on the back side of the tilting table 11. The pillar is the tilting stand 1 as shown by the chain line.
1 is movably installed along the longitudinal direction of the top plate. X-ray fluorescence intensifier 15 and snapshot device 16
is attached to this column 17 so that it can be raised and lowered. Therefore, the X-ray fluorescence intensifier tube 15 and the snapshot device 16 can be moved up and down with respect to the top plate 12,
Moreover, it can be moved along the longitudinal direction of the top plate 12.

Touch detection mechanisms 21 and 22 are attached to the lower surface of the snapshot device 16 facing the top plate 11. These are electrically connected to the drive mechanism that raises and lowers the X-ray fluorescence intensifier tube 15 and the copying device 16, and when the copying device comes into contact with something and receives pressure, the motor in the drive mechanism is activated. It is designed to be disconnected from the power supply.

In addition to the touch detection mechanisms 21 and 22, another touch detection mechanism is incorporated in the X-ray fluoroscopy table according to the present invention. This touch detection mechanism is indicated by reference numeral 23 in FIG. It is attached to the side located on the side. The touch detection mechanism 23 is the touch detection mechanism 2
Like 1 and 22, it constitutes an electric switch,
The X-ray fluorescence intensifier tube 15 and the snapshot device 16 are electrically connected to a drive mechanism that moves the support column 17 in the longitudinal direction of the top plate, and when a certain amount of pressure is applied. , the motor in this drive mechanism is deactivated, and when the pressure decreases, the motor can be activated again.

In the X-ray fluoroscopic imaging table having these touch detection mechanisms, as with conventional imaging tables, there is a compressive force on the patient when the photographing device 16 is brought close enough to touch the patient to take an image. When the touch detection mechanism 21, 22 becomes large enough, the touch detection mechanisms 21 and 22 are activated, and not only can the descent of the snapshot device 16 be stopped, but also when the snapshot device 16 is brought close to the subject 24 as shown in FIG. , the support 17 is moved as shown by arrow A, and the snapshot device 16 is moved toward the subject's head. When the snapshot device comes into contact with the patient, the touch detection mechanism 23 is activated to prevent the support from moving. This can be stopped to prevent the photographic device from hitting the patient's chin.

FIG. 2 shows a specific configuration of the touch detection mechanism 23. The detection plate 25 has a shallow box shape,
It is arranged on the side of the casing 26 of the snapshot device that corresponds to the subject's head. A shaft 27 is attached to the inner surface of the detection plate 25. Furthermore, as shown in FIG. 2, the detection plate 25 is connected to the casing 26
It is placed in a position that does not protrude from the bottom surface of the The reason for this is that if the detection plate 25 is disposed protruding from the lower surface of the casing 26, it will prevent the lower surface of the casing 26 from coming into contact with the subject, and the magnification of the X-ray image will increase. This is to prevent deterioration of the sharpness of the image. A substrate 28 is fixed to the casing 26 so as to face the detection plate 25 . A spring hinge 29 made of bent spring material is attached to the base plate 28. The detection plate 25 has a shaft 27 held by a spring hinge 29 so as to be able to swing around the shaft 27. Further, a tape switch 30 is arranged between the detection plate 25 and the board 28 and is fixed to the board 28. This tape switch 30 constitutes a part of a drive circuit for a motor in a drive mechanism that moves a column 17 that supports an X-ray fluorescence intensifier tube 15 and a copying device 16. When pressure is applied, the motor is stopped, and when the pressure decreases, the motor can be started.

In this touch detection mechanism, when the snapshot device 16 is moved in the longitudinal direction of the top plate 12 as described above and the detection plate 25 comes into contact with the subject's chin, the tape switch 30 is pushed by the detection plate 25. hand,
When the contact between the snapshot device 16 and the subject is detected, the movement of the column 17 supporting the snapshot device 16 and the X-ray fluorescence intensifier tube 15 can be stopped, and the pressure on the detection plate 25 is reduced. The detection plate 25 is returned to its original position by the spring force of the spring hinge 29, allowing the motor to operate normally.

A block 31 is fixed to the end of the detection plate 25, and a screw 32 is screwed into the block 31. By rotating the screw 32 from the outside of the detection plate 25, the detection plate 25 is connected to the tape switch 3.
The distance to press 0 can be easily adjusted.

[Effect of idea]

As described above, the X-ray fluoroscopic imaging table of the present invention is equipped with a touch detection mechanism on the side of the quick-photography device located on the head side of the subject, and this touch detection mechanism allows the subject to be quickly photographed. Since it is possible to detect contact with the device and stop the movement of the snapshot device in the longitudinal direction of the top plate,
This eliminates accidents such as hitting the subject's chin with the quick-shooting device when moving the quick-shooting device toward the subject's head while the quick-shooting device is close to the subject. Photographing seeds can be done safely and easily.

[Brief explanation of the drawing]

The drawings show an embodiment of the X-ray fluoroscopic imaging table of the present invention, and FIG. 1 is a front view and side view of the X-ray fluoroscopic imaging table, and FIG. 2 is a cross-section of the touch detection mechanism incorporated therein. 3 are explanatory diagrams showing the state of use, and FIG. 4 is an explanatory diagram showing the configuration of a conventional X-ray fluoroscopy table. 12... Top plate, 16... Snapshot device, 23... Touch detection mechanism, 24... Subject.

Claims (1)

[Scope of utility model registration request] In an under-table tube-type fluoroscopic photographing table in which the snapshot device can be moved in the longitudinal direction of the top plate,
When the subject comes into contact with the side of the quick-shooting device due to the movement of the quick-shooting device to a position that does not protrude from the bottom surface of the quick-shooting device and on the side of the quick-shooting device corresponding to the head side of the subject An X-ray fluoroscopic imaging table characterized by being equipped with a touch detection mechanism for detecting.