JPH0442639B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention belongs to the field of medical devices for diagnosis;
More specifically, the present invention relates to an X-ray shielding cover in an X-ray diagnostic apparatus used for X-ray fluoroscopic imaging of a region of interest of a subject.

[Technical background of the invention and its problems]

As is well known, X-ray diagnostic equipment provides diagnosis by taking X-ray fluoroscopic photographs of areas of interest inside the human body, and is an indispensable equipment for examining the internal state of the human body. On the other hand,
There is a problem with radiation exposure. This leaked X-ray always poses the problem of exposure not only to patients but also to the operators involved in operating the X-ray diagnostic equipment, and in order to be used appropriately as an X-ray diagnostic equipment, leaked X-rays must be kept to a minimum. It is essential that the

By the way, in order to meet the above-mentioned demands, conventional X-ray diagnostic equipment has a case body 2 on the back side that covers the outside of the X-ray diagnostic equipment (not shown) including the X-ray generating section 1, as shown in FIG. By separately lining with a lead plate 3, X-rays leaking from the X-ray diagnostic apparatus to the outside were shielded.

However, completely lining the back side of the case body 2 of the device itself with a lead plate, etc. 3 is accompanied by difficulties in manufacturing work due to the processing of the lead plate, etc., and sometimes X-ray There is also a risk of leakage. Further, separately lining the back surface of the case body 2 with a lead plate 3 or the like increases the manufacturing cost and has a considerable negative effect on the appearance of the device, making it less attractive as a product. Furthermore, as shown in FIG. 2, it is impossible to completely eliminate leakage of X-rays by covering the area around the X-ray generating section 1 with a lead plate or the like 3 except for the X-ray irradiation area. Particularly in the case of devices in which the X-ray source moves internally, it has become increasingly difficult to reduce leakage of X-rays.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and provides an X-ray shielding cover for an X-ray diagnostic device that can minimize the amount of X-rays leaking from the device itself, is easy to mold, and has a good appearance. The purpose is to provide.

[Summary of the invention]

The outline of the present invention for achieving the above object is characterized in that it is molded from fiber-reinforced plastic through a cloth woven using lead fibers.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 3 is a perspective view showing an example of a CT device among the X-ray diagnostic devices using the X-ray shielding cover according to the present invention;
Fig. 4 is a schematic cross-sectional view of an X-ray shielding cover in a CT device with a built-in X-ray generating section, and Fig. 5 is an explanatory diagram showing an example of fiber-reinforced plastic mixed with lead fiber, which becomes the X-ray shielding cover according to the present invention. It is.

In FIG. 3, a case body (shown with scattered dots) that covers the outside of the pedestal 10 in the CT device
11 is molded from fiber-reinforced plastic mixed with lead fiber (hereinafter abbreviated as lead-filled FRP). As shown in Fig. 5, this lead-containing FRP 11 is manufactured by interposing a cloth 11a woven from lead fibers (or a cloth woven by mixing lead fibers and glass fibers) with glass fibers 11b. can do. In FIG. 3, 12 is a photographing hole, and 13 is a mount 10.
These are supporting parts that stand in parallel on both sides of the . In addition, FIG. 4 omits internal members other than the X-ray generating section 14 in the CT device shown in FIG.
1 shows the covered state.

As described above, the present invention utilizes lead-containing FRP to
The case body 11 that covers the outside of the X-ray diagnostic device including the device is molded, and the mixed lead fibers are interposed in a dense cloth-like state, so that it can be easily removed from the X-ray diagnostic device. X-rays leaking to the outside can be reliably blocked, and leakage
There is no need to separately line the back of the case body with a lead plate or the like to shield the wires. Also contains lead
Because the moldability of FRP is not impaired due to the nature of FRP, the case body can be molded into an appropriate shape as an X-ray shielding cover for covering an X-ray diagnostic device. Furthermore, even if the X-ray source moves inside the device, by covering the entire device with a case body that acts as an X-ray shielding cover, leakage of
Lines can be minimized.

〔Effect of the invention〕

As explained above, the present invention reliably minimizes the amount of X-rays leaking from the device to the outside by molding the case body that covers the X-ray diagnostic device from the outside using fiber-reinforced plastic mixed with lead fibers. It is possible to provide an X-ray shielding cover for an X-ray diagnostic apparatus that has good moldability and excellent appearance.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams showing a conventional method of shielding X-rays leaking from an X-ray diagnostic device, and FIG. 3 is a schematic perspective view of a CT device using an X-ray shielding cover according to the present invention. FIG. 4 is a schematic cross-sectional view showing the device covered with the X-ray shielding cover of the present invention;
FIG. 5 is an explanatory diagram showing an example of fiber-reinforced plastic mixed with lead fiber, which becomes the X-ray shielding cover according to the present invention. 11...Case body (fiber-reinforced plastic mixed with lead fiber).

Claims (1)

[Claims] 1. An X-ray shielding cover for an X-ray diagnostic device, characterized in that it is molded from fiber-reinforced plastic with a cloth woven from lead fibers interposed therebetween.