JPH01268542A - Apparatus for fixing examinee - Google Patents

Abstract

PURPOSE:To collect the diagnostic image having good quality of an examinee by suppressing the body motion of the examinee to the min., by providing a top plate part for mounting the examinee and an examinee fixing jig arranged so as to be movable in the longitudinal direction of the top place part while restricted by the top plate part. CONSTITUTION:An examinee fixing jig 7 is mounted to a top plate part 6 along body side parts of the top plate part 6 and equipped with a belt 10 and fastener parts 11a, 11b in a state passed through the gap parts 8a, 9a formed by guide plates 8, 9. The belt 10 is wound around the arbitrary place of an examinee M placed on the top plate part 6 through a cushion material and both end parts of the belt 10 are fastened by the fastener parts 11a, 11b. The examinee M can be fixed in the state bound to the top plate part 6 and the body motion of the examinee M is effectively suppressed and a good quality image free from the body motion artifact of the examinee M can be collected when the image of the examinee M is collected by an MR apparatus 2.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a subject fixing device, and more specifically, to an MR device.
(If! Air Resonance) Device This invention relates to a subject fixing device for fixing a subject to be diagnosed in a fixed position in a medical diagnostic device such as a CT device.

(Prior art) Conventionally, a subject fixing device 5 in an MR device, CT device, etc.
0, the one shown in FIG. 10 is known.

This subject fixing device 50 has a mat 52 laid on a top plate 51 on which the subject M is placed in a lying state.
The band 5 serves as a fixing device for only the subject M to be placed on the band 2.
3, and the subject M is restrained by keeping the band 53 in a bonded state with an adhesive tape 54 provided at the bonded portion of the band 53.

However, this subject fixing device 50 cannot completely restrain the movement of the subject M, and as a result, the top plate portion 51
When image information is collected for the subject M above by an MR device or a CT device, there is a problem in that the image information includes image noise due to movement of the subject M, leading to deterioration of image quality.

In addition, with the above-mentioned subject fixing device 50, only the chest part of the subject can be restrained on the top plate 51, for example, so in the case of an unconscious subject M, the legs, arms, etc. of the subject M can be restrained. In terms of movement, the top plate portion 51 of this subject M
It is not possible to completely eliminate the movement of the body in the longitudinal direction, and there is a problem that body motion artifacts occur in the diagnostic image, which also reduces the image quality.

(Problems to be Solved by the Invention) The present invention has been made in view of the above-mentioned circumstances. The purpose is to provide a device.

[Structure of the Invention] (Means for Solving the Problems) A subject fixing device according to the invention described in claim 1 includes a top plate portion for placing a subject, and a top plate portion that is restrained by the top plate portion. and a subject fixing device disposed so as to be movable in the longitudinal direction.

Further, the subject fixing device according to the invention described in claim 2 includes a top plate section for placing a subject, and a subject placed on the top plate sections individually attached to various parts of the top plate section. and an arbitrary number of subject fixing devices for individually fixing each part of the subject.

(for production) The operation of each device having the above configuration will be explained below.

According to the apparatus of claim 1, the top plate for placing the subject is provided with a subject fixing device that is movable in the longitudinal direction while being restrained by the top plate. A desired part of the specimen can be fixed by being tied to the top plate part using the specimen fixing device, thereby suppressing the body movement of the specimen.

Further, according to the device according to claim 2, at various places on the top plate portion,
Equipped with an arbitrary number of specimen fixing devices that individually fix each part of the specimen, each part of the specimen can be tied to the top plate, and the restraining effect on the specimen is better. becomes.

(Example) Examples of the present invention will be described in detail below.

FIG. 1 shows the appearance of an MR apparatus 2 incorporating the subject fixing device 1 of this embodiment.

This MR apparatus 2 includes a bed device 3 into which a subject fixing device 1 is movably incorporated in the Xl and X2 directions in FIG. The apparatus includes an apparatus main body 5 that collects images of the affected area of the subject based on magnetic resonance phenomena when the apparatus is located inside the subject.

The subject fixing device 1 is configured to hold a subject M as shown in FIG.
A rectangular top plate part 6 on which the subject is placed in a lying state, and a subject fixing device 7 attached to the top plate part 6 so as to be movable in the directions Xi and X2 shown in FIG. , and a headrest 8 attached to one end of the top plate section 6.

The subject fixing device 7 is arranged in the longitudinal direction (Xi,
X2 direction) is attached to this top plate part 6 along both sides, and there is a space between Xl and the top plate part 6.

Guide plate 8°9 with voids F3a and 9a in the X2 direction
and a gap 8a formed by the guide plates 8 and 9.

9a and is disposed in a direction perpendicular to the length direction of the top plate part 6, and an adhesive part (
magic fastener) 11a.

11b.

According to this test subject fixing device 1, the belt 10 is wound around any part of the test subject M placed on the top plate 6 with a cushion material 12 interposed therebetween, as shown in FIG. By joining both ends of the bells 1 to 10 with the adhesive parts 11a and Ilb, it becomes possible to fix the subject M in a state where it is tied to the top plate part 6, thereby effectively controlling the body movement of the subject M. When the MR device 2 acquires images of the subject M, body movement artifacts of the subject M can be suppressed.・It is possible to collect high-quality images without any problems.

Next, other embodiments of the present invention will be described with reference to FIGS. 4 to 8.

The subject fixing device 20 shown in FIGS. 4 to 6 is constructed by attaching a chest and arm fixing device 21 and a foot fixing device 22 of the subject M to the top plate 6.

The chest and arm fixing device 21 includes an auxiliary plate 23 attached to the top plate 6 at a position corresponding to the back of the subject M lying on the top plate 6. This auxiliary plate 23 includes a joint plate part 24 with the top plate part 6, an arm auxiliary plate part 25a of a symmetrical shape that projects from the joint plate part 24 in a direction perpendicular to the length direction of the top plate part 6, 25b. The arm auxiliary plates 25a, 25b are provided with symmetrical rectangular holes 26a, 26b, respectively.

Then, from one square hole 26a, the arm auxiliary plate portion 25a is inserted.
The arm resting portion 27a for the right arm is
A region extending from the other square hole 26b to the protruding end of the arm auxiliary plate portion 25b forms an arm resting portion 27b for the left arm.

One chest belt 28a is inserted into the one square hole 26a.
is inserted, and an adhesive portion 29a provided at the insertion side end is adhesively fixed to the bottom edge of the top plate portion 6. The chest belt 28a also has adhesive parts 29b and 29c1fil at the upper end and at a position spaced apart from the upper end.
I'm being kicked.

The other chest bell 1-28 is inserted into the other square hole 26b.
b is inserted, and the adhesive part 30a provided at the insertion side end.
is adhesively fixed to the bottom edge of the top plate portion 6. Further, a ring-shaped metal fitting 30b for passing through the one chest belt 28a is attached to the upper end of the chest belt 28b.

Adhesive portions 32a are provided at one ends of arm belts 31a and 31b, respectively, on the bottom side of each protruding end portion of both arm auxiliary plate portions 258.25b.

32b is fixed with adhesive.

Adhesive portions 33a and 33b are also provided at the open end portions of both the 7-member belts 31a and 31b, respectively, and the square holes 26a and 26 of the arm auxiliary plate portions 25a and 25b are provided with adhesive portions 33a and 33b, respectively.
Adhesive parts 34a and 34b are also provided on the bottom part on the b side.

As shown in FIGS. 4 and 6, the end fixtures 22 are attached to a pair of leg belts 3 attached to the top plate 6 at a position opposite to the headrest 8 on the top plate 6.
5a and 35b.

One of the foot bells 1 to 35a has an adhesive portion 36a provided at one end thereof adhesively fixed to the bottom side of the edge of the top plate portion 6. The foot belt 35a also has adhesive portions 3 at the open end and at a position a certain distance from the open end.
6b, 37C@ are provided.

The other leg belt 35b has an adhesive portion 37a provided at one end thereof fixed to the bottom edge of the top plate portion 6 with adhesive. Further, a ring-shaped end fitting 37b through which the foot belt 35a can be inserted is attached to the open end of the foot belt 35b.

Next, the operation of the subject fixing device 20 of Mizonari will be explained with reference to FIGS. 7 and 8.

To fix the subject M using this subject fixing device 20, first, place the subject M's head on the headrest 1 8 and place the back part on the joint plate 24, and
The right arm A1 of the subject M is placed on the arm placement section 27a, and the left arm A2 is placed on the arm placement section 27b. Roughly, the right foot L1 and left foot L2 of the subject M are placed facing the foot fixture 22.

Then, the chest belts 28a and 28b are wrapped around the chest B of the subject M, and one of the chest belts 28a is
By inserting the part of the adhesive part 29b provided on the ring-shaped metal fitting 30b and folding it back, and watching both the adhesive parts 29b and 29cl, the chest B is tied onto the top plate part 6 with both the chest belts 28a and 28b. Fix it.

Also, arm belt 31 is attached around arm A1 of subject M.
Attach the adhesive part 33a provided at the end of the arm belt 31a to the adhesive part 34a provided on the bottom side of the arm placement part 27a.

Similarly, an arm belt 31b is wrapped around the left arm A2, and an adhesive part 3 is provided at the end of the arm belt 31a.
Adhesive portion 34b provided on the bottom side of the arm placement portion 27b
stick to.

As roughly shown in FIG. 8, the foot L1 of the subject M.

Wrap the leg belts 35a and 35b around L2, insert the adhesive part 36b provided on one of the leg belts 35a through the end fitting 37b and fold back, and then wrap both adhesive parts 36b and 3
6c, both legs 11 and 12 are tied and fixed onto the top plate part 6 with both leg belts 35a and 35b.

In this way, the chest B1 and both arms Az of the subject M.

By fixing Δ2 and both legs L1 and L2 individually to the sheet pile section 6, even if the subject M moves around in an unconscious state, the subject M can be firmly restrained on the top section 6. This makes it possible to suppress body motion artifacts when collecting images of the subject M and to collect high-quality images.

In addition, as shown in FIG. 9, the foot Li,
, L2, if a curved rectangular foot holding plate 40 is interposed between the foot Lt, L2 and the foot bands 35a, 35b, the foot L1., L2 of the subject M can be fixed. Movement of L2 can be more effectively prevented.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the invention.

For example, in the embodiment described above, the case where the device of this embodiment is incorporated into the MR device 2 has been described, but it can be similarly applied to a CTSm device.

[Effect of the invention] According to the present invention described in detail above, the following effects are achieved.

According to the first aspect of the invention, it is possible to provide a subject fixing device that can fix a desired part of a subject to a top plate portion.

According to the second aspect of the invention, it is possible to provide a subject fixing device that can individually fix each part of the subject to the top plate section.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the external appearance of an MR apparatus incorporating the embodiment of the present invention, FIG. 2 is a perspective view of the embodiment of the present invention, and FIG. 3 is the embodiment of the device shown in FIG. FIG. 4 is a perspective view showing a device according to an embodiment of the present invention, FIG. 5 is a cross-sectional view showing a chest and arm fixing device of the same device, and FIG. is a cross-sectional view showing the leg fixation device of the same device, FIG. 7 is a cross-sectional view showing the use condition of the chest and arm fixation device of the same device, and FIG. 8 is a cross-sectional view showing the use condition of the foot fixation device of the same device. 9 is a partial perspective view showing a state in which a foot press plate is added to the foot fixing device of the same device, and FIG. 10 is a sectional view showing the conventional device in use. 1.20... Subject fixing device, 6... Top plate section, 7... Subject fixing device, 21...
Chest and arm fixing device, 22... Leg fixing device. Figure 4 Figure 5 Figure 6 Total 8 Figures Figure 9 Figure 10

Claims (2)

[Claims] (1) Fixation of a subject characterized by having a top plate section for placing the subject, and a subject fixing device arranged to be movable in the longitudinal direction of the top plate section while being restrained by the top plate section. Device. (2) A top plate for placing a subject, and an arbitrary number of subjects to be individually fixed to each part of the subject to be placed on the top plate, which is individually attached to each part of the top plate. A subject fixing device characterized by having a fixing tool.