JPS62181032A - Top plate for laying patient - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a top plate for lying down on a patient (hereinafter referred to as a top plate), which is placed on a medical diagnostic device or the like and allows a patient to lie down. The present invention mainly relates to the laminated structure of a top plate used in, for example, an X-ray transmission film stand.

[Technical Background of the Invention and Problems Therewith] Generally, in a medical diagnostic apparatus m, a diagnosis is performed with a patient lying down on a top plate. For example, in an X-ray fluoroscopy platform, an X-ray tube 5 is used as shown in FIG. 5(a).
The patient is made to lie down on the top plate 4, which is placed below the X-ray aperture device 6.
As shown in Figure (b), its four sides or two long sides are supported by a metal frame 3 made of aluminum, iron, etc., and this can be slid along the top slide rail 7.7. ing. Conventionally, for example, the Special Publication Act 58-5073
As seen in the X-ray apparatus described in Publication No. 3, carbon fiber reinforced plastic (hereinafter referred to as CFRP) is widely used for this type of top plate, and its general configuration is shown in Figure 3. As shown in Figure 1, hard porous materials such as acrylic,
It is made by laminating and bonding several CFRP plates 2 on both sides of a foam 1 made of urethane, TN vinyl, etc.

On the other hand, as shown in Figure 3, the conventional CFRP top plate is made of CF RP temporary 2 wL8A1i string (fibers fixed in the longitudinal direction of the top plate>28) and horizontal fiber braid (fibers along the width direction of the daikon radish). > 2b or almost white, or in the case of a top plate for an X-ray device, as shown in Figure 4 15, a CFRP board 1017)
The density of the vertical fibers 10a is higher than the density of the single horizontal string 10b, and the number of laminated layers (three in each case) is large, so the rigidity of the top plate is excessive, and the height is 1IIIi. The problem was that the price in Osaka was high due to the wasteful use of carbon fiber in the large assembly. Furthermore, when used in an X-ray device, there was a frequent problem of poor X-ray transparency.

[Object of the invention] The present invention was made in view of the above circumstances, and an object thereof is to provide a top plate that is inexpensive and has high X-ray transparency, which can obtain appropriate rigidity with a smaller amount of carbon fibers. shall be.

[F of invention! [Summary] The outline of the present invention for achieving the above object is to use a carbon i-fiber reinforced plastic reinforced with longitudinal fibers along the longitudinal direction of the top plate and horizontal fibers along the transverse direction of the top plate. In the patient lying tabletop used, the density of the horizontal fibers was higher than the density of the vertical fibers.

[Embodiments of the Invention] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

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

1 is a conventionally used 17-handed hard porous body, on both sides of which are anisotropic carbon fiber cloth prepregs 8 with different densities of longitudinal fibers 8a and 1 yellow area fibers 8b, with high-density horizontal W, Glue one piece at a time so that the fibers 8b are in the short direction of the top plate (in the direction of arrow B). Therefore, the density of carbon fibers is higher in the horizontal direction of the top plate than in the longitudinal direction of the top plate (in the direction of the arrow). Here, the density of the vertical fibers 8a is the number of vertical fibers 8a per unit length in the transversal direction, and the density of the horizontal fibers 8b is the number of horizontal fibers 8a per unit length in the longitudinal direction. It means the number of fibers 8b.

FIG. 2 is an exploded perspective view showing a second embodiment of the invention.

In this embodiment, two unidirectionally aligned carbon fiber prepregs 91 and 92 are bonded to both sides of the hard porous body 1, respectively.

These unidirectionally aligned carbon fiber prepregs 91,
The density and direction of the fibers of 91, 92, and 92 are the outer ones 9
1.91 is the transverse direction with high density, and the inner one is 92.
92 is the longitudinal direction where the density is low. Therefore, also in this embodiment, the density of carbon fibers is higher in the transverse direction B of the top plate than in the longitudinal direction A of the top plate. In this embodiment, the inner and outer prepregs 91 and 92 may be replaced.

The results of an experiment were made in which the top plates of the first and second embodiments configured as described above were compared with the conventional top plate shown in FIG. 4 in terms of rigidity, price, and X-ray transparency. The following table shows the ratio with the conventional top plate set as 100.

Regarding the rigidity, it seems to be inferior to that of the first embodiment or the conventional one, but since the conventional top plate had excessive rigidity, it is rather that the top plate of the first embodiment is inferior. On the other hand, it can be said that the rigidity is more appropriate.

Regarding the price, see 1. Both of the second embodiments are significantly cheaper than the conventional ones, and have the same X-ray transparency as the first embodiment. Second
The example is much better.

Although two embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to the above-mentioned embodiments, and can be modified as appropriate within the scope of the invention. Furthermore, the present invention is not limited to the top plate of an X-ray fluoroscopic imaging table, but can also be applied to devices that employ a similar top plate, such as nuclear medicine diagnostic equipment.

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to obtain a lower rA cord fiber with appropriate rigidity, and it is possible to achieve it at low cost and to improve X-ray transparency.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention, FIG. 2 is an exploded perspective view of the second embodiment, and FIGS. 3 and 4 are exploded perspective views of the conventional example. FIG. 5(a) is a perspective view of the X-ray transmission imaging table, and FIG. 5(b) is a partially cutaway perspective view of the top plate portion of the same. 8a... Vertical fiber, 8b... Horizontal fiber, A... Longitudinal direction of the top plate, B... Short direction of the top plate.

Claims (1)

[Claims] In a patient lying table board made of carbon fiber-reinforced plastic reinforced with longitudinal fibers along the longitudinal direction of the top board and horizontal fibers along the transverse direction of the top board, the density of the horizontal fibers is set to A top plate for lying down on a patient characterized by having a density higher than that of vertical fibers.