JP4024903B2 - Diagnostic equipment bed - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a bed of a medical image diagnostic apparatus, and more particularly to a bed structure suitable for medical treatment around a bed in order to maintain rigidity and reduce weight.
[0002]
[Prior art]
The bed of the conventional medical image diagnostic apparatus is attached to the medical image diagnostic apparatus, and the main body of the bed is fixedly installed on the floor so that only the top plate portion on which the subject is placed can acquire a medical image. It was the structure of moving to the shootable area. In the bed adopting such a structure, in order to prevent the load deformation of the bed accompanying the placement of the subject on the bed top plate, the entire bed including the top plate is configured with a highly rigid member, and the bed is also provided. The main body is installed on the floor and firmly fixed to constitute a bed for a diagnostic device with little load deformation.
[0003]
[Problems to be solved by the invention]
The bed for a diagnostic device is easy to move, has good operability, is lightweight, and has a low cost. However, the use of a highly rigid member inevitably increases the weight and manufacturing costs. Will also increase. Further, it is a complicated moving mechanism for satisfying the movement of the medical image diagnostic apparatus to a predetermined position for moving the diagnostic apparatus bed and moving the diagnostic apparatus bed and for diagnosing the subject, firmly fixed on the floor surface Was necessary.
[0004]
Furthermore, even if the top plate on which the subject is placed is moved to the imaging possible area of the diagnostic device, the main body of the bed installed in the vicinity of the diagnostic device does not move. This hinders moving.
[0005]
Therefore, in order to simplify the moving means, there is a diagnostic apparatus bed which is not installed on the floor and has a roller as a supporting means, whereby the transfer of the bed itself and the subject can be photographed in a predetermined imageable region position. The space around the diagnostic apparatus can be secured widely by using the means for moving to the same. However, since it is not installed on the floor, the rigidity of the bed is lowered, and there is a possibility that the deformation of the top plate due to the load when the subject is placed on the top plate is increased.
[0006]
For this reason, in order to suppress the deformation of the top plate due to the load when the subject is placed on the top plate of the diagnostic apparatus bed, it is necessary to adopt a highly rigid component for the top plate of the bed. However, the use of a member having high rigidity has a problem in terms of weight and manufacturing cost as described above. It is an object of the present invention to provide a diagnostic apparatus bed that is light in weight, easy to move, excellent in operability, and capable of easily moving a couch top to an imageable region of the diagnostic apparatus. is there.
[0007]
[Means for Solving the Problems]
The above-mentioned problem is that the pedestal that supports the top plate and is provided at least at both ends in the longitudinal direction of the bed, and is fixed to the pedestal and contacts the floor only when the top plate is deformed by the subject. comprising enabling at least a pair of left and right auxiliary roller is provided so, than the auxiliary roller provided on the bed longitudinally inboard of the pedestal, a structure having a main roller of at least the right and left pair to support the bed Can be achieved.
[0008]
By providing a roller for supporting the diagnostic apparatus bed, the means for moving the diagnostic apparatus bed and the means for moving the subject to a desired position are shared, the mechanism of the diagnostic apparatus bed is simplified, and the diagnostic apparatus It is possible to reduce the work and cost for transferring and installing the bed. With the main roller and auxiliary roller configured as described above, it is possible to generate a moment at the connecting portion between the top plate and the pedestal that cancels the deformation of the top plate in a state where a load is applied when the subject is placed on the top plate. . In other words, than the main roller in contact at all times the floor, by the auxiliary rollers in the longitudinal direction outside of the bed is in contact with the floor, moment is generated at the connection portion of the top plate and the pedestal, the top plate It is possible to relax and absorb the deformation distortion of the top plate in a state where a load is applied when the subject is placed, and is required for a constituent member of the diagnostic apparatus bed having a roller as a support means of the diagnostic apparatus bed. The rigidity can be kept low.
[0009]
That is, even in the couch top made of a member having low rigidity, the amount of deformation of the couch top of the couch for the diagnostic device due to the load when the subject is placed on the couch is reduced, and the diagnostic device is light and low in cost. A couch can be constructed. Moreover, even if the use of a highly rigid member such as metal is reduced, the amount of deformation of the top plate of the diagnostic apparatus bed can be sufficiently suppressed. However, in this case, for example, it is possible to use an FRP material (a plastic material reinforced with glass fiber) as the top plate, but at least the component parts of the pedestal are required to generate the moment as described above. It is necessary to use a material having higher rigidity.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The bed for a diagnostic apparatus of this embodiment uses a FRP material for the top plate to reduce the weight, and uses a highly rigid metal material for the pedestal. FIG. 1 is a perspective view showing an embodiment of a diagnostic apparatus bed according to the present invention, which is an embodiment according to the most general arrangement of rollers of the present invention. In FIG. 1, a top plate 1 made of FRP material and four pedestals 2 (including support portions of each roller) that support the top plate 1 are made of a material that is higher in rigidity than the top plate 1. The four main rollers 3 are fixed to the pedestal 2 at the left and right end portions of the bed, and the four auxiliary rollers 4 at the left and right two are attached to the pedestal 2 outside the four main rollers 3. It is fixed. The main roller 3 is always in contact with the floor surface, while the auxiliary roller 4 is in a state of floating from the floor surface when no load is applied, and is in contact with the floor surface only in the loaded state. It is configured.
[0011]
FIG. 2 is a schematic diagram showing the diagnostic apparatus bed deformed by the load. With the above-described configuration of the auxiliary roller 4, the top plate 1 is deformed by the load when the subject is placed , and the auxiliary roller 4 moves in the direction of the arrow Z by an amount corresponding to the gap 5 and contacts the floor surface 6.
[0012]
When the auxiliary roller 4 comes into contact, the entire movement of the pedestal 2 is constrained, so that a moment M in the direction of the arrow is generated at the connection between the top 1 and the pedestal 2 and the subject is placed on the top 1. It acts in a direction to cancel the deformation of the top plate due to the load. As described above, the bed for the diagnostic apparatus according to the present embodiment is easily deformed greatly when a load is applied when the subject is placed on the top plate because the top plate 1 is made of the FRP material. Due to the support structure of the main roller 4 and the auxiliary roller 3 and the above-described effects, the deformation of the top plate 1 can be relaxed and the deformation amount can be minimized.
[0013]
FIG. 3 is a perspective view showing a state before moving the diagnostic apparatus bed of the embodiment shown in FIGS. 1 and 2 to the imaging position of the magnetic resonance imaging apparatus, and FIG. 4 is a diagnostic apparatus of the same embodiment. It is a perspective view which shows the state which moved the bed for work to the position which can be image | photographed in a magnetic resonance imaging apparatus.
As shown in FIG. 3, the presence of the bed space 10 provided in the bed 9 of the present embodiment for the magnetic resonance imaging apparatus 8 does not hinder the transfer of the bed 9 in the arrow Y direction. The bed 9 can be moved to a position where the magnetic resonance imaging apparatus 8 can be imaged. In addition, since the top plate 1 of the bed 9 is composed only of the FRP material, even if the bed is moved to a photographing position in the magnetic resonance imaging apparatus 8 where insertion of magnetic metal is prohibited, the image of the subject is displayed. There is no inconvenience to shooting. At this time, the living space 7 of the subject occupies the space from the upper surface of the top plate 1 of the bed 9 to the upper surface of the opening of the magnetic resonance imaging apparatus 8, but according to the present embodiment, the thickness of the top plate 1 of the bed 9 is reduced. It can be made thinner and the comfortability of the subject is improved.
[0014]
5A to 5D are diagrams showing various embodiments of the present invention relating to the arrangement of a plurality of rollers. Even if the number of auxiliary rollers 4 is at least two, there is no problem in generating moment M when the subject is loaded, and when the subject is placed on the top 1 and the bed 9 is loaded, (a) or (d) is Since the four main rollers 3 are in contact with the floor surface, the stability is high. However, in the no-load state, (b) or (c) also causes the three main rollers 3 to contact the floor surface. Therefore, it is possible to maintain a substantially stable state even during movement, and the auxiliary roller 3 also participates in the load burden and ensures a stable state during loading.
[0015]
【The invention's effect】
According to the present invention, the weight of the diagnostic apparatus bed can be reduced and the structure can be simplified, and the subject can be easily moved to the image capturing region. In addition, to minimize the deformation of the couch top due to the load when the subject is placed on the couch even under conditions where the rigidity of the diagnostic device is high or the member cannot be used. Therefore, it is possible to provide a diagnostic apparatus bed using a member having low rigidity. For example, by forming a top plate, a frame, or the like using a nonmagnetic material such as an FRP material, an image of the subject is obtained. During imaging, the entire bed can be moved to the imaging area of the magnetic resonance imaging apparatus, which eliminates the need to transfer the subject, and for the diagnostic apparatus around the nuclear magnetic resonance imaging apparatus as in the prior art. A wide examination work space for the examiner can be provided without leaving the main body component of the bed. Furthermore, since the labor for transportation and installation can be reduced by the bed for diagnostic devices of the present invention, it is extremely effective in reducing the manufacturing cost.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a bed for a diagnostic apparatus according to the present invention.
FIG. 2 is a schematic view showing a diagnostic apparatus bed deformed by a load of the diagnostic apparatus bed according to the present invention.
FIG. 3 is a perspective view showing a state before the diagnostic apparatus bed according to the embodiment of the present invention is moved to the magnetic resonance imaging apparatus;
FIG. 4 is a perspective view showing a state in which the diagnostic apparatus bed according to the embodiment of the present invention is moved to a photographing position in the magnetic resonance imaging apparatus.
FIG. 5 is a diagram showing various embodiments of the present invention relating to the arrangement of a plurality of rollers.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Top plate 2 ... Pillar 3 ... Main roller 4 ... Auxiliary roller 5 ... Gap 6 ... Floor surface 7 ... Living space 8 ... Magnetic resonance imaging apparatus 9 ... Bed 10 ... Bed space

Claims (2)

In the diagnostic apparatus bed for transferring the subject placed on the couch top to the medical image diagnostic apparatus,
A pedestal that supports the top plate and is provided at both ends in the longitudinal direction of the bed;
At least a pair of left and right auxiliary rollers fixed to the pedestal and provided so as to be able to come into contact with the floor surface only during load deformation of the top plate by the subject;
A diagnostic apparatus bed comprising: at least a pair of left and right main rollers provided on the pedestal on the inner side in the longitudinal direction of the bed with respect to the auxiliary roller and supporting the bed. When the auxiliary roller comes into contact with the floor surface, a moment is generated at substantially both ends in the longitudinal direction of the bed via the pedestal,
The diagnostic apparatus bed according to claim 1 , wherein the moment acts in a direction to cancel the deformation of the top plate by the subject .

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