JP5823822B2 - Aids - Google Patents

Description

  The present invention relates to an assisting device that is disposed in a cradle of a medical device and assists the operation of a subject.

  When imaging a subject with a magnetic resonance apparatus or CT apparatus, the patient needs to sleep in a cradle. However, patients who are carried by wheelchairs or stretchers often have difficulty sleeping on their own in their cradle. When photographing such a patient, there is a problem that it is necessary to place the patient in a cradle while assisting the engineer holding the patient, which places a burden on the engineer. Then, the stretcher which can move a patient to a cradle easily is disclosed (patent document 1).

Japanese Patent Laid-Open No. 02-55042

  However, when the muscular strength of the patient who has moved the patient to the cradle is weak, it is difficult for the patient to raise the upper body by himself or to make the upper body lie down. Therefore, after adjusting the patient's posture after moving the patient to the cradle, the technician needs to put his hand under the patient's body or drag the patient, which is uncomfortable for the patient. And the engineer also takes care. Therefore, it is desired to place the patient in a cradle by a method that can reduce the burden on the patient and the technician.

One aspect of the present invention is an assisting device that is disposed in the cradle of a medical device having a cradle that supports a subject and assists the operation of the subject,
A first mat on which the subject's buttocks are placed;
A second mat that is connected to the first mat and on which the back of the subject is placed, can be tilted to the rear side of the first mat, and with respect to the first mat A second mat configured to be able to stand up,
A grip portion attached to the second mat and gripped by an assistant who assists the subject;
It is a helping tool having.

  By providing the grip portion, it is possible to easily assist the operation of the subject.

It is a figure which shows a mode that a subject is put on the cradle of MR apparatus using the assistance tool of a 1st form. It is a perspective view of the assistance tool 4. FIG. It is a figure which shows the inside of the assistance tool. It is explanatory drawing of the structure of the grip part which has a buckle. It is explanatory drawing of an example of a procedure when hold | maintaining the 2nd mat 42 in the state stood with respect to the 1st mat 41. FIG. It is a figure which shows a mode when the assistance tool 4 is installed in the cradle 3a. It is a figure which shows a mode when the subject 10 sits on the assistance tool 4 installed in the cradle 3a. It is a figure which shows a mode when the imaging | photography engineer 11 grasps the grip part 5D of the assistance tool 4. FIG. It is a figure which shows a mode when the connected belts 61 and 62 remove | deviate. It is a figure which shows the mode after defeating the 2nd mat | matte 42 back. It is a figure which shows a mode when the photography engineer 11 grips grip part 5D with the left hand, and grip 5A with the right hand. It is a figure which shows the mode after connecting the belt of grip part 6A-6D. It is a figure which shows the adjustment method of the position of the subject. It is a figure which shows a mode when the subject 10 is carried into a bore. It is explanatory drawing when assisting the operation | movement which the subject 10 gets up. It is explanatory drawing when assisting the operation | movement which the subject 10 gets up. It is a perspective view of the assistance tool 4 of a 2nd form. It is a figure which shows a mode when the subject 10 is sleeping on the assistance tool 4 of a 2nd form. It is a figure which shows a mode when the line L1 and L2 are made to reach | attain to the side surface of the assistance tool 4. FIG. It is the perspective view which looked at the assistance tool 4 in a 3rd form from the back surface side. It is a perspective view of MR apparatus 100 before fixing the assistance tool 4 to the cradle 3a. It is a perspective view of MR apparatus 100 after fixing assistance tool 4 to cradle 3a. It is explanatory drawing when fixing the assistance tool 4 to the cradle 3a in the state which made the subject 10 lie on the assistance tool 4. FIG.

  Hereinafter, although the form for inventing is demonstrated, this invention is not limited to the following forms.

(1) 1st form FIG. 1: is a figure which shows a mode that a subject is put on the cradle of a magnetic resonance apparatus using the assistance tool of a 1st form.

  A magnetic resonance apparatus (hereinafter referred to as “MR apparatus”, MR: Magnetic Resonance) 100 includes a magnet 2, a table 3, and the like.

  The magnet 2 has a bore 21 in which the subject 10 is accommodated. The magnet 2 includes a superconducting coil, a gradient coil, a transmission coil (not shown), and the like.

  The table 3 has a cradle 3a. The cradle 3a is configured to be able to move into the bore 21. The subject 10 is transported to the bore 21 by the cradle 3a.

  On the table 3, an assisting tool 4 is installed. A subject 10 is seated on the assistance tool 4. The assistance tool 4 is used to assist the subject 10 when the subject 10 is put on the cradle 3 a of the MR apparatus 100. Next, the structure of the assistance tool 4 will be described.

FIG. 2 is a perspective view of the aid 4.
FIG. 2A is a perspective view before the assisting instrument 4 is bent, and FIG. 2B is a perspective view after the assisting instrument 4 is bent.

  The assistance tool 4 includes a first mat 41 and a second mat 42. One of the mats 41 and 42 is a mat on which the lower half of the subject 10 is placed, and the other mat is a mat on which the upper half of the subject 10 is placed. The aid 4 is configured to be bent at a connection position FP where the first mat 41 and the second mat 42 are connected.

FIG. 3 is a view showing the inside of the aid 4.
Members 43 and 44 for constituting the framework of the assistance tool 4 are built in the assistance tool 4. The members 43 and 44 are configured so that they can be bent at the connection position FP. In addition, elastic members 45 and 46 such as sponges and cushions are accommodated inside the assisting device 4. The side portions of the elastic members 45 and 46 are fixed to the members 43 and 44.

Returning to FIG. 2, the description will be continued.
A plurality of grip portions 5 </ b> A to 5 </ b> H and 6 </ b> A to 6 </ b> D are attached to the side surface of the assistance tool 4. The grip portions 5 </ b> A to 5 </ b> H and 6 </ b> A to 6 </ b> D are attached so that the imaging technician 11 can easily assist the subject 10. How to use the grip portions 5A to 5H and 6A to 6D will be described in detail later.

  The grip portions 5A to 5H and 6A to 6D are divided into two types of grip portions. One is a grip part (5A, 5B, 5C, 5D, 5E, 5F, 5G, 5H) that does not have a buckle, and the other is a grip part (6A, 6B, 6C, 6D) that has a buckle. ). Next, the structure of the grip part (6A, 6B, 6C, 6D) having a buckle will be described (see FIG. 4).

  FIG. 4 is an explanatory diagram of the structure of the grip portion (6A, 6B, 6C, 6D) having a buckle. Since the grip portions (6A, 6B, 6C, 6D) have the same structure, the structure of the grip portion 6A will be described below as a representative.

  4A is a view showing a state before removing the buckle 63 of the grip portion 6A, and FIG. 4B is a view showing a state after removing the buckle 63 of the grip portion 6A.

  The grip portion 6 </ b> A has two belts 61 and 62 and a buckle 63. The belts 61 and 62 are fixed to the side surface of the assisting tool 4. Further, the belts 61 and 62 are made of a flexible material so that the photographing engineer 11 can easily grasp the belt. The buckle 63 has an insertion part 63a and a receiving part 63b. The insertion part 63a is configured to be detachably inserted into the receiving part 63b. The insertion portion 63 a of the buckle 63 is fixed to the tip of the belt 61, and the receiving portion 63 b of the buckle 63 is fixed to the tip of the belt 62. When the insertion part 63a of the buckle 63 is inserted into the receiving part 63b, the two belts 61 and 62 are connected so as not to come off.

  The other grip portions 6B, 6C, and 6D have the same configuration as the grip portion 6A. In the first form, the second mat 42 can be held upright with respect to the first mat 41 using the grip portions 6A, 6B, 6C, and 6D. Next, an example of a procedure for holding the second mat 42 in an upright state with respect to the first mat 41 will be described (see FIG. 5).

  FIG. 5 is an explanatory diagram of an example of a procedure for holding the second mat 42 in a state of standing with respect to the first mat 41.

  First, the imaging engineer 11 removes the buckles of the grip portions 6A, 6B, 6C, and 6D (see FIG. 5A), folds the assisting tool 4 at the connection position FP, and raises the second mat 42 (see FIG. 5). 5 (b)). Then, the insertion portion 63a of the grip portion 6A is inserted into the receiving portion 63b of the grip portion 6B, and further, the insertion portion 63a of the grip portion 6C is inserted into the receiving portion 63b of the grip portion 6D (see FIG. 5C). As a result, the belt 61 of the grip portion 6A is connected to the belt 62 of the grip portion 6B, and the belt 61 of the grip portion 6C is connected to the belt 62 of the grip portion 6D, so that the second mat 42 is replaced with the first mat 41. Can be held upright.

  In the first embodiment, the subject 10 is laid on the cradle 3a of the MR apparatus 100 using the aid 4 configured as described above. Hereinafter, an example of a procedure for placing the subject 10 on the cradle 3a of the MR apparatus 100 using the assisting tool 4 will be described with reference to FIGS.

  The imaging engineer 11 installs the assisting tool 4 on the cradle 3a before putting the subject 10 on the cradle 3a (see FIG. 6).

FIG. 6 is a view showing a state when the aid 4 is installed in the cradle 3a.
The photographer 11 holds the second mat 42 of the assistance tool 4 in an upright state before installing the assistance tool 4 on the cradle 3a (see FIG. 5C). And the assistance tool 4 is installed in the cradle 3a.

  Next, the radiographer 11 seats the subject 10 on the assistance tool 4 installed in the cradle 3a (see FIG. 7).

  FIG. 7 is a diagram illustrating a state when the subject 10 is seated on the assisting device 4 installed in the cradle 3a.

  The belt 61 of the grip part 6A is connected to the belt 62 of another clip part 6B, and the belt 61 of the grip part 6C is connected to the belt 62 of another clip part 6D. Therefore, the second mat 42 is held upright with respect to the first mat 41 by the connected belts 61 and 62. For this reason, even if the back of the subject 10 leans against the second mat 42, the second mat 42 can be prevented from falling backward. Since the elastic member 46 is built in the second mat 42 (see FIG. 3), when the back of the subject 10 leans against the second mat 42, the second mat 42 Curved according to the shape of the back of the subject 10. Therefore, the subject 10 can lean on the second mat 42 with an easy posture.

  In FIG. 7, the first mat 41 is installed in the cradle 3 a, the first mat 41 is used as a mat on which the lower half of the subject 10 is placed, and the second mat 42 is It is used as a mat on which the upper body of the subject 10 is placed. However, instead of the first mat 41, the second mat 41 may be installed in the cradle 3a. In this case, the second mat 42 may be used as a mat on which the lower half of the subject 10 is placed, and the first mat 41 may be used as a mat on which the upper half of the subject 10 is placed. .

  The imaging technician 11 grips the grip portion 5D attached to the side surface of the assistance tool 4 when the subject 10 is seated on the assistance tool 4 (see FIG. 8).

  FIG. 8 is a diagram illustrating a state when the photographic engineer 11 grips the grip portion 5 </ b> D of the assistance tool 4.

  The photographer 11 holds another gripper (not shown) while holding the grip portion 5D and removes the connected belts 61 and 62 (see FIG. 9).

FIG. 9 is a diagram illustrating a state when the connected belts 61 and 62 are detached.
The photography engineer 11 confirms that the belt has been removed, and while holding the grip portion 5D, gradually tilts the second mat 42 toward the back side of the first mat 41, and moves the second mat 42 down. It is placed on the surface of the cradle 3a (see FIG. 10).

FIG. 10 is a diagram illustrating a state after the second mat 42 is tilted back.
In the first form, the imaging technician 11 lays the subject 10 on the cradle 3a by tilting the second mat 42 little by little. Therefore, since the subject 10 can lie down on the cradle 3a with his back leaning on the second mat 42, the photographic engineer 11 can be used even if the subject 10 is an elderly person and his muscle strength is weak. The subject 10 can be safely placed on the cradle 3a. In the first embodiment, the photographic engineer 11 holds the grip part with both hands and has the belt connected to another photographic engineer removed, but the photographic engineer 11 holds the grip part with one hand and connects The attached belt may be removed with the opposite hand.

  Also, in FIGS. 9 and 10, the imaging engineer 11 lies down the second mat 42 of the assistance tool 4 while holding the grip portion 5D with both hands. However, for example, as shown in FIG. 11, the second mat 42 of the assisting device 4 may be tilted backward while the grip portion 5D is gripped with the left hand and the grip 5A is gripped with the right hand.

  The photographer 11 connects the belts of the grip portions 6 </ b> A to 6 </ b> D from which the belt has been removed after defeating the second mat 42. FIG. 12 shows a state after the belts of the grip portions 6A to 6D are connected. Note that the belts of the grip portions 6 </ b> A to 6 </ b> D may be connected before the photographer 11 defeats the second mat 42.

  In this way, the subject 10 can be safely placed on the cradle 3a. The imaging technician 11 uses the assisting tool 4 to adjust the position of the subject 10 when he / she wants to adjust the position of the subject 10 after placing the subject 10 in the cradle 3a (FIG. 13). reference).

FIG. 13 is a diagram illustrating a method for adjusting the position of the subject 10.
The imaging engineer 11 holds one of the grip portions 5A to 5H and 6A to 6D, and pulls the assisting tool 4 in the direction in which the subject 10 is to be moved. FIG. 13 shows a state in which the photographing engineer 11 holds the grip 5H and pulls the assisting tool 4. Since the subject 10 is sleeping on the assisting device 4, the position of the subject 10 can be easily adjusted simply by the imaging technician 11 pulling the assisting device 4.

  When the subject 10 is laid on the cradle 3a, the subject 10 is carried into the bore 21 (see FIG. 14).

FIG. 14 is a view showing a state when the subject 10 is carried into the bore.
The imaging technician carries the subject 10 into the bore 21 with the aid 4 sandwiched between the cradle 3 a and the subject 10. Therefore, since the imaging technician does not need to remove the assisting tool 4 after the subject 10 is laid on the cradle 3a, the workload of the imaging technician can be reduced.

  After the subject 10 is carried into the bore 21, scanning is performed. Then, after the scan is completed, the subject 10 is unloaded from the bore 21. The imaging engineer assists the operation when the subject 10 gets up from the cradle 3a after unloading the subject 10 from the bore 21 (see FIGS. 15 and 16).

  FIG. 15 and FIG. 16 are explanatory diagrams for assisting the subject 10 to get up.

  The imaging engineer 11 grasps the grip portion 5D (see FIG. 15), gradually returns the second mat 42 forward, and raises the second mat 42 (see FIG. 16). Since the imaging technician 11 raises the second mat 42, the upper body of the subject 10 can be raised, so that even if the subject 10 is an elderly person and has weak muscle strength, the upper body of the subject 10 Can be raised easily. The photographic engineer 11 performs assistance when the subject 10 gets off the table 3 as necessary after raising the upper body of the subject 10. In this way, imaging of the subject 10 is completed.

  The assisting tool 4 of the first form allows the subject 10 to lie on the cradle 3a when the photographing engineer 11 holds the grip portion and tilts the second mat 42 little by little. In addition, the photographer 11 can raise the upper body of the subject 10 by holding the grip portion and raising the second mat 42. Therefore, the burden on the subject 10 can be reduced.

  In addition, in the 1st form, although the assistance tool 4 has 12 grip parts, the number of grip parts may be less than 12 or more as needed. Moreover, the installation position and installation interval of a grip part can also be changed as needed.

  In the first embodiment, belts 61 and 62 are used for the grip portions 6A to 6D. However, a string or rope may be used instead of the belts 61 and 62 if the photographic engineer 11 is configured to be easily gripped.

  In the first embodiment, the length of the assisting device 4 is longer than the height of the subject 10. However, the length of the assistance tool 4 may be shorter than the height of the subject 10 as long as the subject 10 can be sufficiently assisted. For example, the lower leg or head of the subject 10 may protrude from the assisting device 4.

(2) Second Embodiment FIG. 17 is a perspective view of the assistance tool 4 of the second embodiment.

  FIG. 17A is a perspective view before the assisting tool 4 is bent, and FIG. 17B is a perspective view after the assisting tool 4 is bent.

  In the second mode, two lines L1 and L2 are provided on the surface of the assisting tool 4. The line L <b> 1 is provided at the boundary between the first mat 41 and the second mat 42, and the line L <b> 2 is provided on the center line in the width direction of the aid 4. These lines L <b> 1 and L <b> 2 can be realized by, for example, printing a paint on the surface of the assisting device 4 or attaching a tape to the surface of the assisting device 4.

  FIG. 18 is a diagram illustrating a state when the subject 10 is sleeping on the assistance tool 4 according to the second embodiment.

  The imaging engineer can easily confirm at which position of the assisting device 4 the subject 10 is sleeping by looking at the relative positional relationship between the lines L1 and L2 and the subject 10. Therefore, the radiographer sees whether or not the position of the subject 10 should be shifted by looking at the relative positional relationship between the lines L1 and L2 and the subject 10, and how much to shift. It can be easily recognized.

  In FIG. 17, the lines L <b> 1 and L <b> 2 are provided only on the surface of the assisting tool 4. However, the lines L1 and L2 may reach the side surface of the assisting device 4 (see FIG. 19).

  FIG. 19 is a diagram illustrating a state when the lines L1 and L2 are reached to the side surface of the assisting device 4. Thus, even if the entire surface of the assisting device 4 is covered with the subject 10 by reaching the side surfaces of the assisting device 4 through the lines L <b> 1 and L <b> 2, the imaging technician looks at the side surface of the assisting device 4. Thus, the positions of the lines L1 and L2 can be confirmed. Therefore, the radiographer can easily confirm the relative positional relationship between the lines L1 and L2 and the subject 10 by looking at the side surface of the assistance tool 4.

  The line L1 is provided at the boundary between the first mat 41 and the second mat 42. Thereby, the imaging engineer can visually recognize the boundary between the first mat 41 and the second mat 42 only by looking at the line L1. Therefore, the imaging technician 11 can seat the subject 10 on the assisting tool 4 so that the lower body of the subject 10 does not deviate from the first mat 41.

  Further, since the line L2 is provided on the center line in the width direction of the assisting device 4, the imaging technician only looks at the line L2 and the position of the subject 10 is too close to the right side or the left side of the assisting device 4. It can be easily recognized whether or not. Therefore, even if the position of the subject 10 is too close to the right side or the left side of the assisting device 4, the imaging technician can correct it immediately.

  Note that the line L1 may be shifted from the boundary between the first mat 41 and the second mat 42 as long as the imaging engineer can recognize the positional relationship between the subject 10 and the aid 4. The line L <b> 2 may be displaced from the center line in the width direction of the assistance tool 4. In the second embodiment, only two lines L1 and L2 are provided, but three or more lines may be provided.

(3) 3rd form FIG. 20: is the perspective view which looked at the assistance tool 4 in a 3rd form from the back surface side.

  FIG. 20A is a perspective view before the assisting tool 4 is bent, and FIG. 20B is a perspective view after the assisting tool 4 is bent.

  Surface fasteners 7A, 7B, 8A, and 8B are provided on the back surface of the assisting device 4 so that the assisting device 4 can be fixed to the cradle of the MR apparatus. The hook-and-loop fasteners 7A and 7B are provided on the back surface of the first mat 41, and the hook-and-loop fasteners 8A and 8B are provided on the back surface of the second mat 42. In addition, the other structure is the same as the assistance tool 4 of the 1st or 2nd form.

  Next, a procedure for fixing the third aid 4 to the cradle of the MR apparatus will be described.

  FIG. 21 is a perspective view of the MR apparatus 100 before the aid 4 is fixed to the cradle 3a, and FIG. 22 is a perspective view of the MR apparatus 100 after the aid 4 is fixed to the cradle 3a.

  Surface fasteners 9A and 9B are provided on the surface of the cradle 3a. The photographing engineer 11 presses the hook-and-loop fasteners 7A and 7B provided on the back surface of the first mat 41 of the assistance tool 4 against the hook-and-loop fasteners 9A and 9B of the cradle 3a, respectively. Accordingly, the surface fasteners 7A and 7B of the first mat 41 of the assistance tool 4 are attached to the surface fasteners 9A and 9B of the cradle 3a, so that the assistance tool 4 can be fixed to the cradle 3a.

  In addition, when the imaging technician 11 wants to shift the fixing position of the assisting tool 4, he / she peels the hook-and-loop fasteners 7A and 7B of the assisting tool 4 from the hook-and-loop fasteners 9A and 9B of the cradle 3a, and moves the assisting tool 4 to the position where he / she wants to shift. Then, the hook-and-loop fasteners 7A and 7B of the assistance tool 4 may be attached to the hook-and-loop fasteners 9A and 9B of the cradle 3a again. Therefore, the fixing position of the assistance tool 4 can be easily adjusted.

  In the third mode, the aid 4 is fixed to the cradle 3a. Therefore, even if the subject 10 sits on the assistance tool 4, the assistance tool 4 is not displaced on the cradle 3 a, so that the subject 10 can be easily seated on the assistance tool 4. Further, since the surface fasteners 8A and 8B are attached to the back surface of the second mat 42, when the second mat 42 is tilted, the surface fasteners 8A and 8B of the second mat 42 are replaced with the surface fasteners of the cradle 3a. It can be attached to 9A and 9B. Therefore, all the hook-and-loop fasteners 7A, 7B, 8A, and 8B of the assistance tool 4 are attached to the hook-and-loop fasteners 9A and 9B of the cradle 3a, so that the assistance tool 4 can be more firmly fixed.

  In the third embodiment, two hook-and-loop fasteners 7A and 7B are provided on the first mat 41, and two hook-and-loop fasteners 8A and 8B are provided on the second mat 42. However, the number of hook-and-loop fasteners is not limited to two, and may be one or three or more.

  In the third embodiment, hook and loop fasteners are provided on both the first mat 41 and the second mat 42. However, a hook-and-loop fastener may be provided only on the first mat 41 as necessary.

  In the above description, an example in which the subject 10 is seated on the assisting tool 4 after the assisting tool 4 is fixed to the cradle 3a is described. However, before fixing the assisting device 4 to the cradle 3a, the subject 10 is laid on the assisting device 4, and the assisting device 4 is fixed to the cradle 3a with the subject 10 laid on the assisting device 4. (See FIG. 23).

  FIG. 23 is an explanatory diagram when the assisting device 4 is fixed to the cradle 3a in a state where the subject 10 is laid on the assisting device 4. FIG.

  The stretcher 13 is laid with the assisting device 4, and the subject 10 lies on the assisting device 4. The imaging technicians 11 and 12 hold the both ends of the assisting device 4 and move the assisting device 4 to the cradle 3a in a state where the subject 10 is laid on the assisting device 4. Then, the surface fasteners 7A and 8A of the assistance tool 4 are pressed against the surface fastener 9A of the cradle 3a, and the surface fasteners 7B and 8B of the assistance tool 4 are pressed against the surface fastener 9B of the cradle 3a. Thereby, the assistance tool 4 can be fixed to the cradle 3a.

  In addition, in the back surface of the assistance tool 4, you may comprise the part to which the surface fasteners 7A, 7B, 8A, and 8B are not attached with a slippery material. Thereby, the subject 10 can be easily moved from the stretcher 13 to the cradle 3a.

  In the first to third embodiments, the case where the subject is put on the cradle of the MR apparatus is described. However, the present invention can also be applied to other medical devices having a cradle that supports a subject, such as a CT device.

2 Magnet 3 Table 3a Cradle 4 Assistance tools 5A to 5H, 6A to 6D Grip part 10 Subject 11 Photographing engineer 41 First mat 42 Second mat 45 and 46 Elastic member 61 and 62 Belt 63 Buckle 63a 63b Receiving part 100 MR apparatus

Claims (9)

An assisting device disposed on the cradle of a medical device having a cradle that supports a subject, and assisting the operation of the subject,
A first mat on which the subject's buttocks are placed;
A second mat that is connected to the first mat and on which the back of the subject is placed, can be tilted to the rear side of the first mat, and with respect to the first mat A second mat configured to be able to stand up,
A first grip portion attached to the first mat and gripped by a helper who assists the subject, wherein the first grip portion and the first receiving portion are detachably inserted. A first grip portion having a first insertion portion configured to be capable of ;
A second grip portion that is attached to the second mat and is held by the assistant, and is configured to be detachably inserted into the second receiving portion and the second receiving portion. A second grip portion having a second insertion portion;
Have
A state where the second mat is raised with respect to the first mat by inserting the second insertion portion of the second grip portion into the first receiving portion of the first grip portion. Assistive devices held on . On the surface of the assistance member is, the line to confirm the relative positional relationship between the subject and the assistance member is provided, assistance device of claim 1. The assisting device according to claim 2 , wherein the line is provided so as to reach a side surface of the assisting device. The assistance tool according to claim 2 , wherein two or more lines are provided. The two or more lines include a first line provided at a connection position between the first mat and the second mat, and a second line provided on a center line in the width direction of the assistance tool. The assisting device according to claim 4 , further comprising a line. The assisting tool according to any one of claims 1 to 5 , wherein a first hook-and-loop fastener for fixing the assisting tool to the cradle is provided on the back surface of the first mat. The assistance tool according to any one of claims 1 to 6 , wherein a second hook-and-loop fastener for fixing the assistance tool to the cradle is provided on the back surface of the second mat. The assistance tool according to any one of claims 1 to 7 , wherein the first mat or the second mat has an elastic member. The assisting device according to any one of claims 1 to 8 , wherein the medical device is a magnetic resonance device or a CT device.