JP2000023791A - Mat utilizing fluid pressure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mat utilizing fluid pressure which decreases feeling of rocking of a patient under laid down condition. SOLUTION: A mat utilizing fluid pressure wherein a fluid bag 2 in which a fluid L is sealed is provided in at least a part of a mat 1 is provided and the fluid bag 2 is divided into at least two regions 23a and 23b and an orifice part 24 through which the fluid L can pass is formed between one region 23a and another region 23b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a type of pressure ulcer (compression gangrene) of a bedridden patient, for example, when a seriously ill patient is lying on the bed for a long time, decreases in subcutaneous fat, and impairs skin circulation. The present invention relates to a fluid pressure mat such as a water mat, which is suitable for preventing ulcers and rubs formed on parts where weight is applied.

[0002]

2. Description of the Related Art Water mats for preventing pressure ulcers are disclosed, for example, in Japanese Utility Model Publication No. 59-5409 and Japanese Utility Model Application Laid-Open No. 4-3.
As disclosed in Japanese Patent No. 2,142, there is known one in which a liquid bag is arranged over the entire bedding.

[0003] Pressure ulcers are thought to be caused by many causes, but the main cause is sustained prolonged pressure on the patient's body. Therefore, the above-mentioned conventional water mat makes the pressure applied to the body even by supporting the patient's body of the liquid in the liquid bag on a wider surface, and as a result, the pressure is concentrated at any place on the mat. They are trying to prevent pressure ulcers.

[0004]

However, in the conventional water mat, since the whole bedding is constituted by one fluid bag, there is a problem that the body of a patient lying on the floor is unstable due to excessive swinging feeling.

[0005] Further, when a patient rests on the mat and another person claps or sits on a part of the mat, the operation immediately propagates through the fluid bag as pressure by the principle of Pascal. In addition, there is a problem that a patient in a lying bed is fluttered.

[0006] The present invention has been made in view of such problems of the prior art, and reduces the rocking sensation of a patient who is in a lying state, and can be used even when a person other than the patient pokes or sits down. An object of the present invention is to provide a fluid pressure mat that does not rock a bed patient.

[0007]

Means for Solving the Problems (1) In order to achieve the above object, a fluid pressure utilizing mat according to the present invention comprises a fluid pressure utilizing mat in which a fluid bag filled with fluid is provided at least in a part of the mat. Wherein the fluid bag is divided into at least two regions, and an orifice portion through which fluid can pass is formed between one region and the other region.

In the fluid pressure mat of the present invention, the fluid bag is divided into at least two regions, and an orifice portion through which fluid can pass is formed between one region and the other region. When external pressure acts on a certain part,
Although the fluid pressure in that region is made uniform by the principle of Pascal, the fluid pressure in the other region propagates as the fluid gradually passes through the orifice. Therefore, the fluid pressure in the other area is suppressed from fluctuating immediately, and as a result, even if the bed patient moves, such as turning over, the swaying feeling due to the movement is reduced and people other than the patient are careless. Even if the user stabs his hand on the mat, the patient does not swing.

(2) In the above invention, the method of partitioning the two regions is not particularly limited, and the partition is divided by a partition, and an orifice portion is formed on the partition, and a fabric pair constituting a fluid bag is joined. Thus, the two regions can be partitioned, and a non-joined portion can be formed in a part of the joined portion, which can be used as an orifice portion.

By using a partition wall different from the cloth pair forming the fluid bag as in the former case, the rectangular parallelepiped shape of the mat can be maintained, and the mat is not uneven, so that it is convenient in the lying state. In addition, by using the cloth pair constituting the fluid bag as the partition wall as in the latter case, a mat which is easy to manufacture and can be provided at low cost can be provided.

(3) In the above invention, it is sufficient that the fluid bag is disposed on at least a part of the mat, and by arranging the fluid bag only in a portion where a pressure ulcer is likely to occur, it is possible to achieve a lighter weight and a higher transportability. Excellent. Further, when the fluid bag is arranged on the entire mat, the effect of the present invention described above, that is, the reduction of the rocking feeling of the lying patient and the prevention of the rocking of the lying patient due to external pressure from another person become more remarkable.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on embodiments shown in the drawings. First Embodiment FIG. 1 is a perspective view showing a first embodiment of a fluid pressure utilizing mat according to the present invention, and FIG. 2 is a sectional view taken along the line II-II of FIG.

The fluid pressure mat 1 of this embodiment has a fluid mat 2 entirely composed of a fluid bag 2. The fluid bag 2 heat-welds the entire periphery of the two upper and lower fabric pairs 21 and 22, for example. It is configured to maintain watertightness.

A partition 23 is provided inside the fluid bag 2, for example, at the center, thereby dividing the inside of the fluid bag 2 into two regions 23a and 23b. The method of attaching the partition 23 is not particularly limited, but can be provided in a water-tight manner on the upper and lower fabric pairs 21 and 22 of the fluid bag 2 by a heat welding method as shown in FIG. Furthermore, this partition 23
A hole 24 (corresponding to the orifice portion of the present invention; hereinafter, also referred to as the orifice portion 24) through which fluid can flow between the two regions 23a and 23b is formed substantially at the center of the hole. 24 is an orifice effect (aperture effect)
It has a small diameter hole so that it can be used. However, the diameter of the hole forming the orifice portion 24 is not particularly limited, and is appropriately selected according to the volume of the fluid bag 2 and the effect of suppressing the feeling of oscillation.

A fluid L, such as water or air, to which a preservative has been added in advance is sealed in the fluid bag 2. In order to inject such fluid, a fluid injection hole 2 is provided in any part of the fluid bag 2.
5 is formed and a plug 26 is provided here. The installation positions of the fluid injection hole 25 and the stopper 26 are not particularly limited, and are appropriately determined as needed.

The fabrics 21 and 22 of the fluid bag 2 are preferably formed of a waterproof sheet having a thickness and strength capable of coping with the body pressure of the patient after the fluid L is injected into the fabrics 21 and 22. The material is not particularly limited, but it can be made of a synthetic resin sheet subjected to necessary waterproofing or water-repellent treatment.

The thickness t of the fluid bag 2 (the interval between the arrangement of the upper cloth 21 and the lower cloth 22) t is also the position where the human body naturally lies down (mostly the hips). It is desirable to have a thickness that does not cause bottoming.

Next, the operation will be described. FIG. 3 is a cross-sectional view schematically showing the fluid pressure utilizing mat 1 of the present embodiment. In a state where no load is applied, the internal pressures of the two regions 23a and 23b are equal as shown in FIG. . Although not shown, the internal pressures of the two regions 23a and 23b are equal in the stationary state even when the patient or the like lies on the bed.

In this state, when an external pressure F acts on a portion of one area 23b as shown in FIG. 2B, the pressure immediately propagates in the area 23b by the principle of Pascal, As shown in b), the external pressure F acts and the other portion rises by the amount of the depression. However, since it is separated from the other region 23a by the partition 23,
The fluid pressure does not immediately propagate to the other region 23a, and the fluid pressure gradually increases due to the fluid L flowing from the region 23b to the region 23a through the orifice portion 24 formed in the partition wall 23. (C) to (d) in FIG.

Therefore, even if the patient turns over or a third person puts his hand, the patient in the lying state will not suddenly swing. Also,
Immediately after the external pressure F is applied, since the fluid pressure only propagates to one of the regions 23b, the amount of the depression is small, and when the patient turns over, the patient's posture suddenly changes and falls, for example, from the bed. Can also be prevented.

Second Embodiment FIG. 4 is a plan view showing a fluid pressure use mat according to a second embodiment of the present invention, FIG. 5 is a sectional view taken along the line VV of FIG. 4, and FIG.
FIG. 6 is a sectional view taken along line VI-VI of FIG.

As in the first embodiment, the mat 1 of the present embodiment also has the entire mat formed of a fluid bag 2, and this fluid bag 2 covers the entire periphery of the two upper and lower fabric pairs 21, 22. For example, the watertightness is maintained by heat welding.

However, when partitioning the interior of the fluid bag 2 into the two regions 23a and 23b, instead of providing the partition member 23 which is a separate member as in the first embodiment described above, in the present embodiment, the upper and lower fabrics are separated. As shown in FIGS. 4 and 5, the central portions of the pairs 21 and 22 are linearly heat-welded to form a joint 2.
3 is formed. Also, the orifice part
A part of the joining portion 23 formed by the heat welding is not joined, that is, the non-joining portion 24 is formed as shown in FIG.

Even in such a mat 1, as in the case described with reference to FIG. 3, the two regions 23a, 23a are in a no-load state or in a stationary state even when a patient or the like lies on the floor.
b becomes equal, and from this state, when an external pressure acts on a portion of one region (for example, 23b),
Although the pressure is immediately propagated in the area 23b by the principle of Pascal, the fluid pressure is immediately applied to the other area 23a because it is separated from the other area 23a by the joint 23. The fluid L does not propagate, and the fluid L flows from the region 23b to the region 23a via the non-joined portion formed at a part of the joined portion 23, that is, the orifice portion 24, whereby the fluid pressure gradually increases.

Therefore, even if the patient turns over or a third party puts his hand, the patient in the lying state does not suddenly swing. Also,
Immediately after the external pressure is applied, the fluid pressure only propagates to one area, so the amount of depression is small, preventing the patient's posture from suddenly changing when turning over and falling off the bed, for example. it can. In addition, the mat 1 of the present embodiment can be easily manufactured at a low cost because the separate partition wall 23 can be omitted.

The embodiments described above are described for facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

For example, in the above-described embodiment, the entire mat is constituted by the fluid bag 2, but the present invention is not limited to this, and it is effective to arrange the fluid bag 2 only in a part of the mat. is there. The mat 1 may be provided with a urethane pad or a protective cover in addition to the fluid bag 2. Further, the partition direction of the two regions 23a and 23b may be the longitudinal direction.

[0028]

As described above, according to the present invention, the fluid pressure in the other area is suppressed from fluctuating immediately, and as a result, even if the bed patient moves, such as turning over, The swing feeling caused by the patient is reduced, and even if a person other than the patient carelessly claps his hand on the mat, the patient does not swing.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a fluid pressure utilizing mat of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a cross-sectional view for explaining the operation of the present invention.

FIG. 4 is a plan view showing a second embodiment of the fluid pressure use mat of the present invention.

FIG. 5 is a sectional view taken along the line VV of FIG. 4;

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Fluid pressure use mat 2 ... Liquid bag 21, 22 ... Fabric 23 ... Partition wall 24 ... Hole, non-joining part (orifice part) 25 ... Fluid injection hole 26 ... Plug L ... Fluid

Claims (4)

[Claims] 1. A fluid pressure utilizing mat in which a fluid bag filled with fluid is provided in at least a part of the mat, wherein the fluid bag is divided into at least two regions, and one of the regions is separated from the other region. An orifice portion through which a fluid can pass is formed between the orifices. 2. The fluid pressure mat according to claim 1, wherein said two regions are separated by a partition, and an orifice portion is formed in said partition. 3. The two regions are separated by joining a fabric pair constituting a fluid bag, and a non-joining portion formed at the joining portion is the orifice portion. 2. The fluid pressure mat according to 1. 4. The fluid pressure mat according to claim 1, wherein said fluid bag is provided on the entire mat.