JPH11290290A - Bed for tomographic imaging - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce physical burden on a person to be examined by letting the person to be examined hold upper limbs outside an imaging area of an abdominal part in a prolonged imaging of the abdominal part. SOLUTION: An adhesion part at one end of a belt 3b is joined on an adhesion part of a support device 3 through which are inserted upper limbs. An adhesion part at the other end of the belt 3b is joined on an adhesion part provided on a top board 1b. The upper limbs of a person 4 to be examined are vertically supported by keeping his both arms crossed on the front thereby reducing physical burden on the upper limbs of the person 4 to be examined.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a tomographic bed for a magnetic resonance imaging apparatus.

[0002]

2. Description of the Related Art In recent years, magnetic resonance imaging apparatuses as well as CT diagnosis apparatuses have been widely used for diagnosis. This magnetic resonance imaging apparatus has a higher ability to discriminate soft tissues than a CT diagnostic apparatus and the like, and is suitable for three-dimensional image acquisition because it can easily perform tomography in any direction because there are few shadows due to bones and the like. It is safe from radiation exposure. By taking advantage of these features, the diagnosis using the magnetic resonance imaging apparatus has been applied to the joint, abdomen, etc. in addition to the application mainly to the head, neck and spine region.

FIG. 7 is a perspective view when a subject 4 is placed on a tomographic bed 1 of a conventional magnetic resonance imaging apparatus. As shown in FIG. 7, the subject 4 is placed on the tomography bed 1 by inserting the abdomen into the abdomen coil 5 and lying in a supine position. The abdominal coil 5 has an antenna function for efficiently detecting a weak resonance signal emitted from the abdominal region of interest, and is mounted in close contact with the abdomen of the subject 4 to achieve a high S / N ratio. Can be

[0004] As described above, the tomographic bed 1 is moved to a predetermined position in the gantry 2 composed of a main magnet gradient coil, a transmission RF coil, and the like while the subject 4 is in a supine position. Diagnosis is performed for about one minute to one hour.

During this time, the abdomen on which the abdomen coil 5 is set needs to be arranged at the center of the magnetic field of the gantry 2 in order to obtain an accurate image. In addition, it is necessary to prevent the upper limb of the subject 4 from entering the abdominal imaging region and adversely affecting the captured image. When the bones of the upper limb are photographed near the core of the affected area, the image quality is deteriorated, which hinders the advanced diagnosis, and the re-diagnosis requires a large cost. For this reason, conventionally, a method of holding the upper limb above the head by gripping an angle 6 provided at a position other than the abdominal region, for example, as shown in FIG.

[0006]

However, the examinee of the tomography bed placed in the gantry requires a long time of 30 minutes to 1 hour while holding the conventional upper limb above the head. When an imaging diagnosis is received, the subject may not only feel tired but also move, which may adversely affect a diagnostic image.

The present invention has been made in view of such circumstances, and is intended for tomographic imaging capable of performing imaging without giving a pain to a patient's posture when receiving a diagnosis of abdomen by a magnetic resonance imaging apparatus or the like. The purpose is to provide a bed.

[0008]

According to one aspect of the present invention, there is provided a tomographic bed used for photographing a body part of a subject on which the subject is lying, the tomographic bed. And a pair of supports which are detachably supported on both sides of the subject and which allow the upper limb of the subject to pass therethrough.

According to a second aspect of the present invention, in the tomographic bed according to the first aspect, an air bag having a hollow structure is used as the support.

Further, according to a third aspect of the present invention, in the tomographic bed according to the second aspect, a stretchable air bag is used for the support, and a gas or a bubble-filled material is injected into the air bag. It is characterized by being used.

[0011] The tomographic bed of the present invention is configured as described above, so that the examinee can place the upper limb outside the abdominal imaging region without being forced into an uncomfortable posture, and perform imaging in a comfortable posture. You can get a diagnosis.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a tomographic bed according to the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a tomographic bed according to the present invention, and FIG. 2 is a perspective view of a support used in the present invention. As shown in FIG. 1, the tomographic bed 1 includes a top moving table 1a for moving the mat 1c and the top 1b on which the subject 4 is placed in the direction of the gantry, and the top moving table 1a. And a support 3 for raising and lowering the table to adjust the height thereof. As shown in FIG. 2, the support 3 is composed of an upper limb passer 3a and a belt 3b having adhesive portions 3c and 3d such as magic fasteners.
The bonding part 3d is bonded and fixed to the bonding part (not shown) provided on the upper limb passing tool 3a.

An upper limb passer 3a used for the supporter 3
The shape of is cylindrical with upper limb through holes 3e for fitting the upper limb, the upper and lower parts are rounded in the radial direction,
The area around the upper limb is softened. Then, a plurality of objects having different sizes according to the thickness of the upper limb of the subject 4 are prepared and used properly.

As the material of the upper limb passing device 3a, a material such as polypropylene, which can withstand the load of the upper limb and is lightweight, is used. The belt 3b is made of a material in which a magic bonding portion is bonded to leather or the like.

Next, how to use the support 3 will be described. First, in a state in which the subject is supine, the top plate 1b is connected via the belt 3b.
The upper limb is inserted into the upper limb passing device 3a adhered to the limb, and the hands are combined. Next, by bonding the bonding portion of the belt 3b to the upper limb passer, the position of the upper limb passer 3a is fixed and the inward inclination is prevented. Thus, the load on the upper limb is supported by the upper limb passer 3a, and the upper limb passer 3a holds the arm vertically as shown in FIG. 3 to reduce fatigue of the upper limb and maintain the state for a long time. Can be. FIG. 4 shows a modification of the support 3 used in the present invention. The belt 3b is taken out from both sides under the mat by a single belt, and both ends thereof are provided with an adhesive portion 3d for connecting the upper limb passer 3a. The usage of the support 3 is the same as described above.

FIG. 5 is a sectional view of the support 3 used in the second embodiment of the present invention. The upper limb passing device supports the load of the upper limb portion by using a reinforced plastic such as glass fiber in the frame 3f, and can further reduce the weight by hollowing the inside.

FIGS. 6A and 6B are external views of a support 3 used in a third embodiment of the present invention, wherein FIG.
(B) shows the state after injection of a gas or a foaming agent such as foamed polystyrene. The support 3 comprises an upper limb passer 3a made of an elastic material such as rubber and an inlet 3h for injecting gas or the like. The upper limb passer 3a is controlled by adjusting the amount of gas or foaming agent to be injected. Since the size can be adjusted, it can be applied to both children and adults with a small size, and the production cost can be reduced and management can be facilitated.

An object of the present invention is to combine a wrist with a second joint bent in a state where the first joint of the upper limb of the subject lying on a bed is extended vertically, thereby reducing the load on the upper limb in the vertical direction. The purpose of the present invention is to reduce the fatigue of the upper limb by acting to keep the upper limb outside the abdominal region for a long time, and to change the shape of the shape of the bottom in order to improve the sitting ability of the upper limb passer is included in the present invention. Is what is done.

[0019]

The tomography bed of the present invention is constructed as described above, and the upper limb of the subject who lies on the tomography bed is always supported by the support, and the upper limb is placed in an unreasonable posture. It is not necessary to bring the head over the head, and the head can be held outside the imaging region by the abdominal coil in a comfortable posture as it is, so that even if the same posture is taken for a long time, there is no fatigue.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a tomographic bed according to the present invention.

FIG. 2 is a perspective view of an upper limb passer used in the present invention.

FIG. 3 is a front view showing an embodiment of the tomographic bed according to the present invention.

FIG. 4 is a perspective view of an upper limb passer used in a modification of the present invention.

FIG. 5 is a perspective view showing a tomographic dead of the present invention.

FIG. 6 is a cross-sectional view of the upper limb passer used in the second embodiment of the present invention.

FIG. 7 is an external view of an upper limb passing device used in a third conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bed for tomography 1a ... Top plate moving stand 1b ... Top plate 1c ... Mat 1d ... Elevating stand 2 ... Gantry 3 ... Supporting device 3a ... Upper limb passing device 3b ... Belt 3c, 3d ... Adhesive part 3e ... Upper limb passing hole 3f … Frame 3g… Hollow part 3h… Injection port 4… Subject 5… Abdominal coil 6… Angle

Claims (3)

[Claims] 1. A tomography bed used for imaging a body part of a subject to be laid on a bed, the bed being detachably supported on both sides of the tomography bed, and penetrating an upper limb of the subject. A tomographic bed comprising a pair of supports for causing the tomography. 2. The tomographic bed according to claim 1, wherein an air bag having a hollow structure is used as the support. 3. The tomographic bed according to claim 2, wherein a stretchable air bag is used as the support, and a gas or a bubble-filled material is injected into the air bag. Bed for tomography.