JPH043975B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a rug for preventing the occurrence of bedsores.

(Prior Art and Problems) The main cause of pressure ulcers is that blood flow in capillaries is obstructed by pressure at the contact site with the body support surface of conventional body support devices, resulting in cell necrosis. This is exacerbated by things such as stuffiness caused by sweat emanating from the body surface and continuous contact with the same body part.

Therefore, there has been a desire for a body support device that can reduce stuffiness caused by sweating and continuous contact of the same body part as much as possible.

The present invention has been made in view of these points, and can be used by laying it on other body support devices with cushioning properties, such as urethane mats or air mats, to prevent stuffiness caused by sweating when lying on your back. The purpose is to reduce

(Means for Solving the Problems) In order to achieve the above-mentioned object, the rug of the present invention has support wires stretched vertically and horizontally through coil springs, respectively, to a frame body, and a large number of smooth thin plates. Small pieces are arranged vertically and horizontally and supported by the support wire, and the coil spring is made of a shape memory alloy,
The coil spring and a means for feeding power thereto are configured as means for pulling the wire. Also,
The thin plate pieces described above are supported in a parallel link mechanism by a pair of support wires in the vertical and horizontal directions, and a pair of coil springs corresponding to the diagonal direction of each pair of support wires are made of a shape memory alloy. The tensioning means can be constituted by a pair of coil springs and a means for supplying power to these coil springs.

(Function) In the above configuration, the rug of the present invention is used by being placed on another body support device such as a urethane mat or an air mat. That is, the weight of the supine body is supported by other body support devices via the rug of the present invention. The rug undulates with the body support device according to the load of the body, and supports the body by means of smooth thin plate pieces arranged vertically and horizontally. Since the supporting wires are located between the thin plate pieces, the air permeability in this front and back direction is good, and the air permeability is very good in the direction along the front side of the rug. Therefore, sweat emitted from the body surface is evaporated from the vicinity of the body with ventilation, thereby reducing the occurrence of stuffiness.

Therefore, in the above-mentioned usage state, the rug of the present invention can move the thin plate small piece through the support wire by operating the tensioning means as necessary, and the rug can be moved relative to the contact area of the body. Exercise produces a pine surge effect on the skin surface of the body, which can reduce the aforementioned stuffiness and effectively prevent the occurrence of bedsores. The relative motion of a small piece of thin plate is
It may be a linear motion or a rotational motion.

(Example) An example of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 shows an example of the rug of the present invention, and reference numeral 1 denotes a frame made of metal, synthetic resin, etc., and support wires are attached to this frame 1 in the vertical and horizontal directions via coil springs 2, respectively. 3. Support wire 3
It can also be made of metal, synthetic resin, etc. Thus, a large number of smooth thin plate pieces 4 are arranged vertically and horizontally and supported by the support wire 3. The small thin plate piece 4 can be made of hygroscopic wood or non-hygroscopic material such as tiles, hard urethane foam, or other hard plastics, and in the latter case, it can be cleaned as necessary. is easy. The shape of this small thin plate piece 4 is not only the square shape shown in the figure, but also a circular shape, an elliptical shape, etc. as appropriate, and the upper peripheral edge can be chamfered. The thin plate pieces 4 described above can be supported by adhering to the support wire 3 with an adhesive, or can be fixed and supported using a stapler or the like.

In the configuration shown in FIGS. 1a and 1b, a part of the coil spring 2, for example, the right side in the figure and the upper coil spring 2a, are made of a shape memory alloy, and power is supplied to these shape memory alloy coil springs 2a. By self-heating, these are shortened and the corresponding support wires 3 are stretched. and,
By stopping power supply and dissipating heat, the coil spring on the other side is biased to return to its original length. Note that the power supply means is not shown in FIG. 1.

In this way, in the configurations shown in FIGS. 1a and 1b, the shape memory alloy coil spring 2a and the means for supplying power thereto constitute the tensioning means 5 for the support wire. By pulling the support wire 3, the thin plate piece 4 can be moved horizontally or vertically in the figure.

Next, in the configuration shown in FIG. 2, the thin plate piece 4 is supported vertically and horizontally by a pair of support wires 3 in a parallel link mechanism. That is, each thin plate piece 4 is supported by the support wire 3 at one point h, and is rotatable relative to the support wire 3. A pair of coil springs 2a corresponding to the diagonal direction of the pair of left and right support wires 3a are made of a shape memory alloy, and power is supplied to these pair of shape memory alloy coil springs 2a by an appropriate power supply means 6. By self-heating, these are shortened and the corresponding support wires 3 are stretched. In this configuration, by shortening the pair of shape memory alloy coil springs 2a corresponding to the diagonal direction, the pair of support wires 3 corresponding to the left and right sides of the thin plate piece 4 in the figure are moved in different directions. 2, and thus the sheet metal piece 4 can be rotated as shown in FIG. Then, by stopping the power supply and dissipating heat, the pair of shape memory alloy coil springs 2a are returned to their original length by the biasing force of the coil spring 2b on the other side, and in this way, the thin plate piece 4 is returned to its original length. It can be rotated to the position.

The above-mentioned rug is used by being placed on another body support device 7 having cushioning properties, such as a urethane mat or an air mat, as shown in FIG. 1b. Even if the body support device 7 itself does not have good breathability, the rug of the present invention provides good breathability to the person lying on it, and reduces body stuffiness by wicking away sweat. By promoting dryness of the skin, it is possible to prevent the occurrence of pressure ulcers. In the above usage state, by operating the tensioning means 5 as necessary, the thin plate piece 4 can be moved linearly or rotationally via the support wire 3, and the thin plate piece 4 can be moved linearly or rotationally to the contact area of the body. The relative movement of the skin produces a pine surge effect on the skin surface of the body, which reduces the aforementioned stuffiness and effectively prevents the development of bedsores.

(Effects of the Invention) As described above, the present invention constructs a rug by arranging a large number of smooth thin plate pieces vertically and horizontally and supporting them on support wires stretched vertically and horizontally on a frame.
When used on top of other body support devices with cushioning properties, it can provide good breathability to the user, wick away sweat, reduce body stuffiness, and promote skin dryness. In this state of use, the thin plate piece can be moved linearly or rotationally via the support wire by operating the tensioning means as required. A pine surge effect is produced on the skin surface of the body due to the relative movement with the contact area of the body, and it is possible to reduce the occurrence of stuffiness as described above and to very effectively prevent the occurrence of bedsores.

[Brief explanation of drawings]

1A and 1B are a plan view and a side view, respectively, of one embodiment of the present invention, and FIG. 2 is a bottom view of another embodiment of the present invention. Code 1... Frame body, 2 (2a, 2b)... Coil spring, 3 (3a, 3b)... Support wire, 4...
Thin plate small piece, 5... tension means, 6... power supply means, 7
...Body support device.

Claims (1)

[Scope of Claims] 1 Support wires are stretched across the frame in the vertical and horizontal directions via coil springs, and a large number of smooth thin plate pieces are arranged in the vertical and horizontal directions and supported by the support wires, and the coil springs are 1. A rug made of a shape memory alloy, characterized in that the coil spring and a power supply means therefor are constructed as means for tensioning the wire. 2. The thin plate piece described in item 1 is supported by a pair of support wires vertically and horizontally in a parallel link mechanism, and a pair of coil springs corresponding to the diagonal direction of each pair of support wires are made of a shape memory alloy. A rug characterized in that the pair of coil springs and a means for feeding power thereto constitute a tensioning means. 3. A rug characterized in that the thin plate pieces described in item 1 are made of hard urethane foam. 4. A rug characterized in that the small thin plate piece described in item 1 is a piece of wood.