JPH01223936A - X-ray ct apparatus - Google Patents

Abstract

PURPOSE:To avoid the interference accident between a stand and a stand cover without utilizing a complicated mechanism, by bringing a both of the stand main covers and a pair of stand covers to a shape becoming non-interference each other when a stand main body is tilted. CONSTITUTION:A stand cover such as a front cover 4 is allowed to cover a stand main body 1 and stands 2, 3 are covered with stand covers 12, 13 independently of said stand cover. Concretely, the front cover 4 and the rear cover provided in symmetric relation thereto as well as the stand covers 12, 13 are respectively brought to a shape becoming non-interference each other when the stand main body is subjected to a tilting operation. By this method, the outer dimension of the stand cover covering the stand main body can be reduced as small as possible and the non-interference state of a pair of the stands and the stand cover is secured by the stand cover and a pair of the stand covers without interposing a complicated mechanism and an interference accident can be avoided.

Description

[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) The present invention provides an i! The present invention relates to an X-ray CT device that uses the LI layer to obtain biological diagnostic information, and particularly relates to improvements in the housing structure.

(Prior Art) Conventionally, in this type of X-ray CT apparatus, as shown in FIG.
An X-ray CT apparatus has been proposed in which the gantry main body 1 is supported from both sides and is configured to be tiltable as shown in FIG. , has been put into practical use. In Fig. 2, 4 is a front cover, 5.6 is a side cover, and 7 is a front cover.
is the upper cover, 8 is the rear cover, 9 is the X-ray detector,
10i is a tX-ray tube, and 11 is a bearing that serves as a fulcrum for tilting operation. Further, in FIG. 3, α is the angle of the gantry main body set by the tilt operation.

On the other hand, for such an X$iCT device, there is a desire to make the housing structure as small as possible and to reduce the exclusive space. From this point of view, the front cover 4, which simply serves as a pedestal cover for the pedestal main body 1. Side cover 5 and 6. By making the outer diameters of the upper cover 7 and the rear cover 8 as small as possible, when the covers of the stand main body 1 are tilted together with the stand main body 1, the front cover 4 or the rear cover can be attached to the stands 2 and 3. 8 will collide, resulting in an interference accident.

Therefore, conventionally, the pedestal cover of the pedestal main body 1 and the stand 2
In order to avoid accidental interference with the stand and the same 3, a cover 18 with a bulging structure at the bottom of the stand installation position as shown in FIG. The cover 1b had a flapper structure.

(Problem to be Solved by the Invention) However, when the main body of the mount is covered with a cover having a bulge structure as in the past, the bottom of the casing protrudes laterally, and the casing structure is not substantially miniaturized. Not yet,
Furthermore, when the main body of the apparatus is covered with a cover having a flapper structure, a problem arises in that a complicated mechanism is added.

The present invention has been made in view of the above problems, and its purpose is to reduce the external dimensions of the pedestal cover that covers the pedestal body and the stand supporting it as much as possible, while still utilizing a complicated mechanism. An object of the present invention is to provide an X-ray CT apparatus having a structure capable of avoiding an accident of interference between a stand and a pedestal cover without having to do so.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides each of a pair of stands that support the pedestal body independently of the pedestal cover that covers the pedestal body. The gist is that a stand cover is provided in the stand cover, and that the pedestal cover and the pair of stand covers are shaped so that they do not interfere with each other when the pedestal body is tilted.

(Function) With the above-described configuration of the present invention, the external dimensions of the pedestal cover covered by the pedestal main body can be made as small as possible, and the pair of stands and the pedestal cover can be connected to each other without intervening a complicated mechanism. A non-interference state can be ensured by using the pedestal cover and the stand cover.

(Embodiment) FIG. 1 is a block diagram schematically showing the main parts of an embodiment of an XIICT device to which the present invention is applied.

In the X1ICT device of this embodiment, as described below, except for the pedestal cover covered by the pedestal body and the stand cover covered by the stand, the pedestal body 1. Stands 2 and 3, X-ray detector 9.
X-ray tube10. The internal structure includes a bearing 11 that serves as a fulcrum for tilt operation.

The gantry main body 1 is covered with a gantry cover such as a front cover 4, and the stands 2 and 3 are covered with stand covers 12 and 13 independently of this gantry cover.

Specifically, the front cover 4, the rear cover provided symmetrically thereto, and the stand covers 12 and 13 are shaped so that they do not interfere considerably when the gantry main body is tilted.

Although the rear cover is omitted in Figure 1,
The relationship between this rear cover and stand covers 12 and 13 is as follows:
The relationship with 3 is similar.

Because of this relationship between the pedestal cover and the stand cover, it is possible to reduce the external dimensions of the pedestal cover that is covered by the pedestal body as much as possible, and to connect the pair of stands and the pedestal cover without intervening a complicated mechanism. A non-interference state can be ensured with the pedestal cover and the stand cover.

[Effects of the Invention] As explained above, the present invention provides a stand cover for each of a pair of stands independently of the pedestal cover covered by the pedestal body, and also prevents the pedestal cover and the stand cover from mutually preventing each other during a tilting operation. Since the shape is designed to cause interference, even if the external shape of the pedestal cover is made as small as possible, it is possible to avoid interference accidents between the stand and the pedestal cover without using a complicated mechanism. be.

[Brief explanation of the drawing]

Fig. 1 is a block diagram schematically showing the main parts of an embodiment of an X-ray CT device to which the present invention is applied, Fig. 2 is a block diagram schematically showing the entire X-ray CT device, and Fig. 3 is a main body of the mount. FIG. 4 and FIG. 5 are explanatory diagrams schematically showing the tilt operation status of the conventional device. 1... Frame body 2, 3... Stand 4... Front cover 5.6... Side cover 7... Upper cover 8... Rear cover agent Patent attorney Rules
Kensuke Chika Agent Patent Attorney Takeshi Kondo Figure 1 Figure 2 Row 2 Figure 3 a Straw 4 = ]b Atsushi S Figure

Claims (1)

[Claims] (1) The gantry body on which the subject is mounted is supported from both sides by a pair of stands, the gantry body is configured to be tiltable, and the subject is tomographically photographed from any tilt angle to obtain biological diagnostic information. In the X-ray CT apparatus, a stand cover is provided for each of the pair of stands independently of a pedestal cover covered by the pedestal body, and each of the pedestal cover and the pair of stand covers is provided so that the pedestal body is tilted. An X-ray CT device characterized by having a shape that does not interfere with each other when operated.