JPH07327975A - Cradle - Google Patents

Abstract

PURPOSE:To provide a cradle capable of easily and rapidly setting an extender as a cradle which is used for an X-ray CT apparatus and MR apparatus and executes positioning of the sectional layer sections of a testee. CONSTITUTION:This cradle is composed of a housing section 12 which is disposed within a cradle body 11 and is formed with an opening at one end face of the cradle body 11, a guide which is disposed in the housing section 12 and extends in the longitudinal direction of the cradle body 11 and an extender 15 which engages slidably with this guide and can be housed into the housing section 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cradle used for an X-ray CT apparatus or an MR apparatus to position a tomographic region of a subject, and more specifically, to fix the head of the subject. Regarding a cradle to which accessories can be attached.

[0002]

2. Description of the Related Art Next, a conventional example will be described with reference to the drawings.
FIG. 7 is a configuration diagram of a conventional cradle, and FIG. 8 is a diagram illustrating a form of an accessory.

Reference numeral 1 denotes a cradle main body on which a subject is placed. At this time, the height of the subject is high and the cradle body 1
Then, if the length is insufficient, the extender 2 is connected to the end plate 1a as a surface of the cradle body 1 facing the gantry.

Accessories such as head holders 3 and 4 as shown in FIG. 7 are attached to the end plate 2a of the extender 2 as required. The extender 2 and the accessory 3 are manually attached to the cradle body 1 and manually removed from the cradle body 1.

[0005]

However, the cradle having the above structure has the following problems. (1) If an accident such as dropping the extender 2 or hitting it against another object occurs during installation or removal, the extender 2 will be damaged.

(2) It takes a long time to mount and remove the extender 2, and a dead time is required for the inspection. (3) The work of mounting and removing the extender 2 is complicated.

The present invention has been made in view of the above embodiments, and an object thereof is to provide a cradle in which an extender can be set in a cradle main body easily and in a short time.

[0008]

The present invention for solving the above problems provides a cradle for positioning a tomographic region of a subject, which is provided inside the cradle body and has an opening formed on one end face of the cradle body. And a guide provided in the storage portion and extending in the longitudinal direction of the cradle body, and an extender slidably engaged with the guide and capable of being stored in the storage portion. Is.

Further, it is preferable that an engaging portion with which the accessory is engaged is provided on the tip end surface of the extender.

[0010]

In the cradle of the present invention, when using the extender, the extender is pulled out from the accommodating portion of the cradle body along the guide, and the extender projects from the cradle body.

When the extender is unnecessary, the extender is stored in the storage portion of the cradle body along the guide. In addition, accessories are attached to the tip of the extender.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, FIG. 3 is a view in the direction B in FIG. 1, FIG. 4 is a view in the direction C in FIG. 1, and FIG. 1 is a perspective view of the end plate in FIG. 1, and FIG. 6 is a DD in FIG.
It is a cross-sectional block diagram.

In FIGS. 1 to 4, 11 is a cradle main body, 12 is a storage portion provided inside the cradle main body 11 and having an opening formed at one end surface of the cradle main body 11.

At the bottom of the accommodating portion 12, a guide 13 is provided along the longitudinal direction of the cradle body 11 as shown in FIG.
Are formed. Numeral 15 is an extender having a groove 9 which is fitted in the guide 13 at the bottom thereof, slidably engaged with the guide 13 and accommodated in the accommodation portion 12. An end plate 16 that locks the accessory is provided on the tip surface of the extender 15.

Here, the end plate 16 will be described with reference to FIGS. 5 and 6. In the end plate 16, reference numeral 17 denotes a handle detachably attached to a bracket 8 provided on the end plate 16, and reference numeral 18 denotes a latch rotatably provided on the end plate 16 using a shaft 19. The latch 18 has a substantially L-shape having two arms 18a and 18b whose cross-sectional shapes are orthogonal to each other, and a hook-shaped engaging portion 21 capable of engaging with an accessory 20 to be set is provided at a rotating end of one arm 18a. Are formed.
In addition, the upper end plate 16 has two engaging holes 2
2 is formed.

On the other hand, the accessory 20 to be set includes
A protrusion 25 engageable with the engagement hole 22 and a hole 26 engageable with the engagement portion 21 of the latch 18 are formed. When the cradle with the above configuration is used in an X-ray CT system,
Those with low density and no sharp edges are preferred,
When used in an MR device, it is desirable to use a non-magnetic, low absorber such as carbon fiber.

Therefore, in this embodiment, the extender 15
Is an integrally molded product of carbon fiber. Next, the operation of the above configuration will be described. First, when using the extender 15, hold the handle 17 and hold the cradle body 11
The extender 15 is pulled out along the guide 13 from the storage section 12 of.

When using the accessory 20, the handle 17 is first removed from the end plate 16. Next, the accessory 20 is lowered along the end plate 16. Then, the protrusion 25 of the accessory 20 fits into the engaging hole 22 of the end plate 16, the bottom surface of the accessory 20 contacts the arm 18b of the latch 18, the latch 18 rotates, and the engaging portion 21 of the arm 18a comes into contact with the accessory. 20 holes 2
6 to complete the engagement of the accessory 20 with the end plate 16 (see FIG. 6).

Next, when removing the accessory 20, the accessory 20 is lifted upward. Then, the protrusion 25 of the accessory 20 is disengaged from the engaging hole 22 of the end plate 16, and the arm 18a of the latch 18 is pushed by the peripheral edge of the opening of the hole 26 of the accessory 20. As shown in FIG. And the engagement state between the accessory 20 and the end plate 16 is released.

When the handle 17 is attached to the end plate 16 and the extender 15 is pushed, the extender 15 is pushed.
Moves along the guide 13 and is stored in the storage portion 12 of the cradle body 11.

According to the above structure, the extender 15 is pulled out from the cradle main body 11 so that the extender 1
5 can be used, and the extender 15 can be stored by pushing it into the storage portion 12 of the cradle body 11.

Therefore, as compared with the conventional installation / removal of the extender to / from the cradle, the work is easier, the extender is not damaged, and the installation / removal can be performed in a short time.
There is no dead time in the inspection, 15 is the cradle body 11
Can be set in a short time.

[0023]

As described above, according to the present invention, an accommodating portion provided inside the cradle body and having an opening formed at one end surface of the cradle body, and the cradle provided in the accommodating portion. By providing a guide extending in the longitudinal direction of the main body and an extender that slidably engages with the guide and can be stored in the extender, a cradle that can easily and quickly set the extender is realized. it can.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a view on arrow B in FIG.

FIG. 4 is a view in the direction of the arrow C in FIG.

5 is a perspective view of an end plate in FIG. 1. FIG.

6 is a cross-sectional view taken along the line D-D in FIG.

FIG. 7 is a configuration diagram of a conventional cradle.

FIG. 8 is a diagram illustrating a form of an accessory.

[Explanation of symbols]

 11 Cradle Main Body 12 Storage Section 13 Guide 15 Extender 16 End Plate 17 Handle 18 Latch

Claims (2)

[Claims] 1. A cradle for positioning a tomographic region of an examinee, which is provided inside a cradle body (11) and has an opening formed in one end surface of the cradle body (11). And the cradle main body (1
1) A guide (13) extending in the longitudinal direction, and a guide (13) slidably engaged with the guide (13),
2) A cradle comprising: an extender (15) that can be housed inside. 2. The tip surface of the extender (15),
The cradle according to claim 1, further comprising an engaging portion with which the accessory (20) is engaged.