JPH0614950B2 - Bedsore prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an apparatus used for preventing the occurrence of pressure sores, so-called bed sores.

[Prior Art] A pressure sore, so-called bed sore, is caused by circulatory failure due to long-term pressure on a local area. Recently, the number of bedridden elderly people has increased rapidly with the extension of life, and bed sores have become a serious problem. In spite of this, the conventional method for preventing bed sores has conventionally been to change the compression position by changing the position of the patient in a timely manner.

[Problems to be Solved by the Invention] The above-mentioned preventive method requires manpower, and further, since the body position is not changed after clearly recognizing the location to be locally compressed, the location of the compression must be surely performed. It could not be said that it was resolved, and the preventive effect was small.

Therefore, an object of the present invention is to provide a bedsore prevention device that does not require manual labor and that effectively prevents bedsores.

[Means for Solving the Problems] In order to solve the above problems, according to the present invention, there is provided a device for preventing the occurrence of bedsores, which is used between a bedding and a body, and includes an electrode group which is distributed in a plane and a bedsore pressure. A sheet body provided with a deformable member that brings only the electrodes in a portion where the above load acts into a conductive state and is exposed to the surface, a pair of power supply lines, and a part of the electrode group into one of the power supply lines. A bed sore prevention device having a lead wire for connecting the remaining electrode group to the other power supply line was created for the electric wire.

[Operation] According to the bed sore preventive device having the above structure, only the electrode in the portion where a load equal to or higher than the bed sore generating pressure acts is in a conductive state,
Moreover, it is exposed on the surface of the sheet body. When a pair of power supply lines is connected to a power supply, a part of the electrode group is connected to one power supply line and the remaining electrode group is connected to the other power supply line by a lead wire. There is a potential difference between some of the remaining electrode groups. Therefore, the current is applied to the part of the body where a load greater than the pressure acts on the occurrence of bed sores, the circulatory failure due to compression is improved, and the occurrence of bed sores is effectively suppressed.

That is, according to the present invention, a current effective for preventing bed sores is selectively and automatically applied to a body part where bed sores may occur, and bed sores are effectively prevented.

[Embodiment] Next, an embodiment embodying the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is an overall perspective view of a bed sore prevention device 1 according to this embodiment. In the bed sore prevention device 1 of this example, an appropriate number of hemispherical projections 3, 16 in this example, are provided upright on one side of a flat plate mat 2. In this example, the diameter of the protrusion 3 is about 3 cm, preferably 3 to 5 cm. The space between the protrusions 3 is about 2 cm. The protrusion 3 is mainly composed of silicon rubber, and its hardness is such that when a load equal to or higher than the pressure that causes the floor slip occurs, the protrusion 3
Is adjusted to the extent that it deforms. That is, in this example, the protrusion 3 corresponds to the deformable member in the claims.

And the pressure which causes the above-mentioned pressure sore is slightly different depending on the weight of the patient and the time when the pressure acts, but is about 30 to 45 mmHg.
/ Cm ² or more, and a more general value is about 40 mmH
It is g / cm ² .

As shown in FIG. 2, which is a vertical cross-sectional view of the protrusions 3, a movable terminal 4 which is a vertically long metal rod is embedded in each protrusion 3 substantially vertically from the apex thereof. The movable terminal 4 is manufactured by being integrated with the silicon rubber forming the protrusion 3.

The upper end of the moving terminal 4 is rounded and is always exposed on the surface at the apex of the protrusion 3. The distance between the movable terminals 4, that is, the distance between the electrodes is preferably 8 cm or less, more preferably 6 cm or less. And in this embodiment, it is set to 5 cm. On the other hand, the lower end of the moving terminal 4 is located inside the protrusion 3 about 5 mm above the surface of the mat 2. A space 5 is provided on a vertical line from the lower end of the moving terminal 4 to the mat 2, and a fixed terminal 6 is fixed on the mat 2 located at the bottom of the space 5.
One lead wire 7 is connected to the fixed terminal 6, and the lead wire 7 is wired inside the mat 2 and any one of a pair of power supply lines 8 a and 8 b extending from the mat 2 is connected. Connected to a book. Then, the pair of power supply lines 8
a and 8b are connected to a normal low frequency generator 9.

A circuit diagram of the lead wire 7, the power supply wires 8a and 8b, and the low frequency generator 9 is shown in FIG. 3. The fixed terminal 6a is connected to one power supply wire 8a by the lead wire 7a, and the other fixed terminal 6b is connected to the fixed terminal 6b. It is connected to the other feeder line 8b by a lead wire 7b. The fixed terminals 6a and 6b are alternately arranged and connected so that different voltages are applied to the adjacent fixed terminals. Then, when a load equal to or higher than the pressure of the bed sore is not acting on the protrusion 3, there is a space 5 between the moving terminal 4 and the fixed terminal 6, so that the moving terminal 4 is not in a conductive state.

When the bed sore prevention device 1 of this example is used, between the bedding and the patient's body, the protrusions 3 and the upper ends of the moving terminals 4 directly contact the skin such as the back, waist, or buttocks, which is a site where bed sores are likely to occur. Lay out bed sore prevention device 1.

Then, the weight of the patient is unevenly applied to the 16 projections 3 on the mat 2, and only the projections 3 to which a load equal to or higher than the pressure that causes a floor sore is applied among the 16 projections 3 are deformed. Since the movable terminal 4 is integrated with the silicon rubber forming the protrusion 3, the movable terminal 4 moves vertically downward in the space 5 with the deformation of the protrusion 3 and comes into contact with the fixed terminal 6. Thereby, the moving terminal 4 is connected to the fixed terminal 6a or 6b. It becomes conductive with the low frequency generator 9 through the lead wire 7a or 7b and the power supply wire 8a or 8b. Since the upper end of the moving terminal 4 is always exposed on the surface of the protrusion 3,
With the above configuration, it is possible to make only the electrode in a portion where a load equal to or higher than the pressure at which the floor sore occurs acts in a conductive state and to be exposed to the surface of the mat 2.

When the adjacent projection 3 is deformed, a potential difference is generated between the moving terminals 4 and 4, so that the low frequency generator 9 is applied to the body part of the patient in contact with the moving terminals 4 and 4. Current flows from. Therefore, an electric current automatically and selectively flows to a place where a bed sore may occur.

In this example, a low-frequency generator 9 is used to generate muscle pumping current with a spike-shaped wave of 20 mA and 200 Hz to prevent bed sores. This spine wave has the effect of improving blood flow and the effect of removing edema, and is suitable for preventing bed sores.

And the current used in the present invention can be a current suitable for preventing bedsores by changing the Hertz number and the amperage timely,
A suitable value is 10-50 mA, more preferably 10-
It is 20 mA and 250 Hz or less.

Further, a high-frequency current may be used in the present invention, and in this case, particularly when the electric field method of the condenser is used, heat generation is large in the skin and fat, which is suitable for preventing bedsores. Further, low-frequency and high-frequency currents may be used alternately, and other currents are used if they do not cause a danger such as electric shock to the human body, and various energization methods are planned to be used for the bed sore preventive device of the present invention. obtain.

By encouraging the patient to change his / her body position by energizing the patient with a current of Hertz and amperes that is enough to be perceived by the human body. Bed sores can also be prevented.

The present invention can also be used for patients with mild bed sores to prevent their deterioration.

In this example, the deformable member is the protrusion 3 projecting from the mat 2, and the plurality of protrusions 3 are arranged on the mat 2 with a space therebetween. A space is created between the patient's body and the mat 2.

Therefore, sweat and urine discharged from the patient move through the space, which is excellent in hygiene.

Further, the massage effect of the protrusion 3 itself can be expected.

In addition, the space 5 in the protrusion 3 is shielded from the outside, and dust and the like are prevented from entering the space 5 to make it inoperable.

Further, the apparatus of the present invention can be used to make various underwear such as pants.

Another embodiment will be described with reference to FIG. In this embodiment, a plurality of electrodes 10 are erected under the surface of the mat 2, and the upper ends of the electrodes 10 are exposed on the bottom surface of the holes 11 provided on the surface of the mat 2. One lead wire 7a or 7b is connected to each of the electrodes 10. The connection between the lead wire 7a or 7b and the pair of feed lines 8a and 8b (not shown) and the low frequency generator 9 (not shown) is the same as that in the above embodiment.

Then, the mat 2 is deformed at a portion to which a load equal to or higher than the bed sores generating pressure is applied, and the deformation causes the electrode 10 to be exposed on the surface of the mat 2. That is, in this example, the sheet body also serves as the deformable member. The energization action at the bed sore occurrence site is almost the same as that of the first embodiment.

EFFECTS OF THE INVENTION According to the present invention, among the electrode groups which are distributed in the sheet body used between the bedclothes and the body, only the electrodes in a portion to which a load equal to or higher than the bed sore pressure is applied are in a conductive state and the sheet body is It will be exposed on the surface. Therefore, a current effective for preventing bed sores can be conducted selectively and automatically to a body part where bed sores may occur. That is, it is convenient because bed sores can be prevented without the need for manpower, and since it is possible to selectively prevent the areas where bed sores may occur, the effect is excellent.

[Brief description of drawings]

1 to 3 relate to an embodiment, FIG. 1 is a perspective view of a bed sore preventive apparatus of the embodiment, FIG. 2 is a longitudinal sectional view of a portion of a protrusion 3 thereof, and FIG. 3 is an embodiment. FIG. 4 is another embodiment of the circuit diagram of FIG. 1 ... Bedsore prevention device 2 ... Mat 3 ... Protrusion 4 ... Moving terminal 5 ... Space 6 ... Fixed terminal 7 ... Lead wire 8a, 8b ... Feed line 9 ... Low frequency generator 100 ... Electrode 11 ... hole

Claims (1)

[Claims] 1. A device for preventing the occurrence of bedsores, which is used between the bedding and the body, in which only the electrodes in a planar distribution and the electrodes in a portion to which a load equal to or higher than the bedsore pressure is applied are in a conductive state. In addition, a sheet body having a deformable member exposed on the surface, a pair of power supply lines, and a part of the above electrode groups are connected to one power supply line, and the remaining electrode groups are connected to the other power supply line. Bedsore prevention device with a lead wire for