JP2522765Y2 - Operating table - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating table for carrying a patient during treatment or examination.

[0002]

2. Description of the Related Art An example of a conventional operating table is shown in FIG. This operating table includes a bed 30 on which the patient M rides, and a base 31 that supports the bed 30 so as to be rotatable around the P axis.
The couch part 30 includes a central frame 33 connected to the base 31 via a rotating arm 32, a back frame 34 located on the right side of the central frame 33 in the drawing and abutting on the back of the patient M, and a central frame 33. And a leg frame 35 for supporting the leg of the patient M, which is located on the left side of the patient M. The back frame 34 and the leg frame 35 are each capable of being moved up and down with respect to the central frame 33. I have. Further, a leg mat 36, a center mat 37, and a back mat 38 are fixedly attached to each of the frames 35, 33, 34.

The operating table is characterized in that the back frame 34 and the leg frame 35 are movable up and down with respect to the central frame 33, and that the central frame 33 is rotated with respect to the base 31. It was freely supported. Therefore, the posture of the operating table can be set to various shapes according to the situation of surgery or examination. For example, the posture shown in FIG.
There is a posture as shown.

[0004]

However, in the operating table of the above example, the back mat 38 is connected to the back frame 34.
For example, since the mats 36, 37, and 38 are in the horizontal posture as shown in FIG. 6, the operating table is deformed to the posture shown in FIG. 7 and FIG. In this case, the gap G between the back mat 38 and the center mat 37 is increased from the beginning, and there is a disadvantage that the body surface of the patient is rubbed.

The present invention has been made in view of such circumstances, and an operating table in which the gap between the back mat and other mats does not increase when the back frame is relatively moved upside down. The purpose is to provide.

[0006]

The present invention has the following configuration to achieve the above object. In other words, the present invention divides a mat for supporting a patient and a frame for supporting the same into a plurality of parts, and at least raises and lowers a back frame for supporting a back mat abutting on the back of the patient relative to other frames. In the operating table that is configured as possible,
When the back frame is moved up and down relative to other frames, the back mat is horizontally slid with respect to the longitudinal direction of the back frame by the frictional force between the back mat and the patient's body surface. And a slide mechanism for maintaining a constant gap between the back mat and another mat.

[0007]

The operation of the present invention is as follows. That is, when the back frame is moved up and down relative to the other frames, the back mat is slid by the slide mechanism so as to oppose the up and down movement. That is,
Due to the frictional force between the back mat and the patient's body surface, the back mat slides horizontally with respect to the back frame, so that the gap between the back mat and other mats does not widen, and the patient's body surface Maintain the posture of contact with the back mat.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. The difference between the configuration of the operating table in this embodiment and that of the conventional operating table shown in FIG. 6 lies in the attachment of the back mat and the back frame, and a description of other components will be omitted. FIG. 1 shows a simplified cross-sectional view of a back mat and a back frame.

The back frame 1 is constructed by bridging two pipe frames 2 and 3 extending in the body axis direction of a patient with a plate 4. The plate member 4 is preferably formed of an X-ray transmitting material having high mechanical strength even if the thickness is reduced. That is, during the treatment and examination of the patient placed on the operating table, X-ray imaging using a mobile X-ray imaging apparatus is often performed. Such a material is, for example, about 1 mm on both sides of a bakelite about 3 mm thick.
CFRP sandwiched between carbon fibers of different thickness
(Carbon fiber reinforced plastic). In the related art, the pipe mats 2 and 3 are bridged by fixedly attaching a back mat to the two pipe frames 2 and 3.

The operating table of the present invention is configured so that the back mat 9 and the back frame 1 are slidable by using a mechanism to be described later.
It is preferable in terms of structure that a component other than the back mat 9 be separately provided as a bridge that fixedly bridges 3. Plate 4
Is for this. The reason why the thickness is preferably as small as possible will be described later.

Elongated plates 5, 6 called shoes are fixedly attached to both ends of the plate 4 in the longitudinal direction so as to slightly protrude outward from both ends. The shoes 5 and 6 are made of a material having good sliding properties and excellent wear resistance, for example,
It is desirable to form with a tetrafluoroethylene resin (Teflon). Rails 7 and 8 having a substantially “U-shaped” cross section are attached to the shoes 5 and 6 protruding from both ends of the plate material 4 so as to slidably engage with the shoes 5 and 6. The rails 7 and 8 are the core material 10 of the back mat 9.
It is fixed to. Note that the back mat 9 is formed by integrally molding a core material 10 and a sponge 11.

As described above, the back mat 9 is provided with the rails 7,
It is configured to be slidable in the longitudinal direction of the back frame 1 via the shoes 8 and the shoes 5 and 6. The rails 7 and 8 and the shoes 5 and 6 constitute a slide mechanism. This slide mechanism is mounted on, for example, a guide rail fixed to the plate member 4 and a back mat 9 and rolls in the guide rail. The bearing may be configured instead of the bearing. The reason for using the rails 7, 8 and the shoes 5, 6 in this embodiment is to make the thickness of the slide mechanism as small as possible. This is the same as the reason why the plate member 4 is formed as thin as possible.

That is, as shown in FIG. 2, the center of the up and down movement of the back frame 9 with respect to the center frame 20 is at the point O. Let H be the distance in the height direction from the point O to the back mat 9. If the thickness of the slide mechanism or the plate member 4 increases, the distance in the height direction increases. The distance at the time of thickening is defined as H ′. Next, FIG. 3 shows a state in which the back mat 9 is rotated so as to be tilted about the point O. As can be seen from this figure, the central mat 21 at the distance H in the height direction
The gap L ′ between the center mat 21 and the back mat 9 at the distance H ′ in the height direction is larger than the gap L between the back mat 9 and the back mat 9. Although the spread of these gaps L and L 'is eliminated by the above-described slide mechanism of this embodiment, the slide stroke of the back mat 9 becomes longer as the gaps become wider, so that the operating table becomes longer than necessary. Must be made. In order to avoid this, it is a desirable example to reduce the thickness of the slide mechanism and the plate member 4.

It is practically convenient to provide a component for controlling the slide mechanism in addition to the configuration of the embodiment described above. An example is shown in FIG. A pin 12 is mounted on one of the pipe frames 2 constituting the back frame 1 so as to penetrate therethrough and move up and down. pin
Numeral 12 is in contact with the core material 10 of the back mat 9 by the elastic force of the coil spring 13 and is positioned on the front side in the sliding direction of the rail 7 in that posture, and regulates the slide. Here, it is assumed that the back mat 9, that is, the rail 7 slides along the X direction in FIG. 4 and is structurally restrained in the X 'direction which is the opposite direction. This is because sliding in the X ′ direction is meaningless when setting the operating table in the posture as shown in FIGS.

When the back frame 1 is moved up and down in a state where the pin 12 is moved downward and the rail 7 is released from the slide regulation, as shown in FIG. Due to the frictional force with the body surface (not shown), it slides from the position a to the position b. Thereby, the gap between the back mat 9 and the center mat 21 does not expand,
The posture of contact between the back mat 9 and the patient's body surface is maintained.

[0016]

[0017]

As is clear from the above description, the operating table of the present invention has a back mat that is horizontally slidable with respect to the longitudinal direction of the back frame. When moved upside down relative to the frame, the friction between the back mat and the patient's body surface
The back mat slides so as to maintain a constant gap between the back mat and other mats, and maintains a contact posture with the patient's body surface. Therefore, the back mat does not rub against the patient's body surface, and the patient's pain due to friction can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an operating table according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating the expansion of a gap between a center mat and a back mat according to the thickness of a slide mechanism.

FIG. 3 is a diagram illustrating the expansion of a gap between a center mat and a back mat according to the thickness of a slide mechanism, similarly to FIG. 2;

FIG. 4 is a side view showing an example of a configuration for controlling a slide mechanism.

FIG. 5 is a side view showing a sliding operation of the back mat.

FIG. 6 is a side view of an operating table according to a conventional example.

FIG. 7 is a view showing an example of a posture change of an operating table according to a conventional example.

FIG. 8 is a view showing another example of the posture change of the operating table according to the conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Back frame 5, 6 ... Shoe 7, 8 ... Rail 9 ... Back mat

Claims (1)

(57) [Scope of request for utility model registration] 1. A mat for placing a patient and a frame for supporting the same are divided into a plurality of parts, and at least a back frame for supporting a back mat abutting on the back of the patient can be moved up and down relative to other frames. When the back frame is moved up and down relative to another frame, the back mat and the patient's body surface cause the back mat to move the back mat to the back frame. An operating table comprising a slide mechanism that slides horizontally with respect to the longitudinal direction of the mat to maintain a constant gap between the back mat and other mats.