JP2011031066A - Bedsore prevention mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bedsore prevention mat which does not partially sink a patient's body even in a posture lying on his/her back and does not cause excess pressure concentration on a sacral spine region that is a polyleptic region of bedsore. <P>SOLUTION: The bedsore prevention mat M has a pressure reception optimization part 2 made of a silicone gel material formed in midway in a direction of a pressure receiving cross section of a rectangular foam mat material 1. The foam mat material 1 is formed of a plurality of mat material layers 1A, 1B different in vertical hardness and interposing the pressure reception optimization part 2 between them, while the pressure reception optimization part 2 is formed by setting a plurality of elongated shape small chips in a parallel state extending in the longitudinal direction the foam mat material 1, and the pressure reception optimization part 2 has a rate of penetration of 50-250 (JIS K2207). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mat for preventing pressure ulcer that has an enhanced effect of preventing a rubbed or pressure ulcer that may occur in a bedridden patient.

  So-called bedridden elderly and healed patients may develop floor rubbing or the like due to a constant posture on the bed for a long time. Therefore, care such as a change of posture is always required. Of course, if such care is given to the patient such as sufficient posture change and body wiping, the occurrence of pressure sores called so-called floor rubs can be prevented at a significant rate, but the current public or In the current situation of home care, there is a limit to seeking ideal human care.

  Several proposals have been made to prevent pressure ulcer onset from the present situation. Most of these eyes are concentrated in pressure ulcers, such as the sacral region, so pressure is concentrated, so take measures to reduce the pressure, or develop pressure ulcers in a ventilated state. Development from the viewpoint of ensuring air permeability from the viewpoint of being extremely affected is being carried out.

  By the way, the present inventor, while estimating the cause of pressure ulcer development, has found that not only the air permeability but also the improvement in the direction of eliminating pressure concentration to the pressure ulcer frequent occurrence site is very effective. Obtained. From this point of view, in the case of polyurethane foam, etc., which is generally used as a mat material for bedding, the harder one tends to concentrate pressure on the body partly, and the onset of pressure ulcers On the other hand, when soft, there is an effect of pressure dispersion, and although concentration of pressure on the sacral region etc. can be eliminated, the patient's position sinks and bends, causing other disorders All of them had a contradictory technical imperfection.

For example, as the prior art documents, the following prior art documents can be cited, but among these, those of Patent Documents 1 to 4 are all limited to improvement of so-called cushioning properties, human body structure, In association with the skeletal structure, it is impossible to achieve both pressure dispersion and prevention of inappropriate bending due to body position depression.
In addition, as a technology for achieving both pressure-resistant dispersion and prevention of inappropriate bending due to sinking of the body position, a water bed as an example of the prior art documents 5 and 6 has been used in the past, and various technologies capable of handling gag have been proposed. ing.
However, this requires a large amount of water, has a large weight, and has problems specific to a water bed such as a risk of water wetting and instability due to shaking, and is not always easy to use.

JP-A-5-076663 JP-A-9-271424 Microfilm of Japanese Utility Model No. 61-121179 (Japanese Utility Model Application No. 63-27199) Japanese Patent Laid-Open No. 2000-23795 JP-A-8-205966 Microfilm of Japanese Utility Model No. Sho 63-152413 (Japanese Utility Model Laid-Open No. 2-74024)

  The present invention has been made in consideration of such a background, and has already been substantially involved and accumulated by the present applicant, and is a technology for obtaining a target function by combining a silicone gel with a buffer base material (Patent No. 2808011). No. "Vehicle seats" and JP-A-1-299338 "Cushioning material"), even if the patient takes a supine posture, the body will not partially sink, The present inventors also attempted to develop a mat for preventing pressure ulcer based on a foam material that does not cause excessive pressure concentration in the sacral region, which is a frequent occurrence site of pressure ulcer.

  In other words, the pressure ulcer prevention mat according to claim 1 is a pressure ulcer prevention mat used by a patient in a supine position by forming a pressure receiving optimization part made of a silicone gel material in the middle of the pressure receiving cross section direction of a rectangular foam mat material. The foamed mat material is formed of a mat material layer having a plurality of different hardnesses on the upper and lower sides across the pressure receiving optimization portion, while the pressure receiving optimization portion includes a plurality of small sheet-like sheet materials having an elongated shape. The single foamed mat material is arranged in parallel in the longitudinal direction, and the pressure receiving optimization portion has a penetration (JISK2207) of 50 to 250.

  In addition to the requirement described in claim 1, the pressure ulcer prevention mat according to claim 2 has a pair of adhesion reinforcing holes on both sides of the small piece sheet material sandwiching the longitudinal intermediate portion. However, the upper and lower mat material layers are bonded to each other at the site of the adhesion reinforcing hole, and the pressure receiving optimization portion is held.

  Furthermore, in addition to the requirements of claim 1 or 2, the pressure-loss prevention mat according to claim 3 is characterized in that the foamed mat material is higher in the upper part than the pressure receiving optimization part made of silicone gel material. Therefore, the hardness is set to be soft.

  Furthermore, in addition to the requirements of claim 1, 2, or 3, the pressure-loss prevention mat according to claim 4 changes the pressure-receiving state of the pressure-receiving optimization part made of the silicone gel material according to the pressure-receiving value. It is characterized by this.

  In addition to the requirements of claim 3 or 4, the mat for preventing pressure ulcer according to claim 5 is characterized in that the mat material layer is formed one layer at a time on both sides of a pressure receiving optimization portion made of a silicone gel material. The upper mat material layer has an Asuka hardness (F type) of 5 to 35, and the lower mat material layer has an Asuka hardness (F type) of 10 to 60.

  The present invention has a configuration as described above, and distributes the entire pressure while maintaining a good posture in the supine posture of the patient P, and also concentrates the pressure on the part where many pressure ulcers occur. It was possible to eliminate pressure ulcers by eliminating them.

  First, according to the first aspect of the present invention, compared to the foam mat material alone, the pressure receiving optimization section gives a so-called “koshi” as a whole to maintain a suitable posture in the supine position, Eliminate excessive pressure concentrations that trigger onset.

  Further, according to the invention described in claim 2, the pressure receiving optimization part and the foam mat material are integrated, for example, to ensure the unity in the usage form of the pressure ulcer prevention mat, for example, flat plate or folding. obtain.

  According to the third aspect of the present invention, the foamed mat material can be supported in a suitable supine posture in which pressure is dispersed for the patient by each mat material layer and excessive sinking is prevented.

  According to the fourth aspect of the present invention, it is possible to support a patient while achieving pressure dispersion in a portion where pressure tends to concentrate.

  Further, according to the invention described in claim 5, the mat material layer having a suitable property is selected, and the maintenance of a suitable posture in the supine position of the patient and excessive pressure concentration that induces pressure ulcer development are eliminated. It is a thing.

It is a perspective view which fractures | ruptures and shows the use condition and part of the mat for pressure ulcers of this invention. It is the perspective view which isolate | separates and shows a structural material same as the above, and a partially expanded sectional view. It is the disassembled perspective view and other part expanded sectional view which show other embodiment which formed the adhesion reinforcement | strengthening hole in the pressure receiving optimization part. It is sectional drawing which shows the other aspect which varied the form of the pressure receiving optimization part. It is a top view which shows the pressure receiving surface of the mat for pressure ulcers at the time of use.

  The mode for carrying out the present invention includes an embodiment described below, and includes various improved embodiments based on this technical idea.

  The present invention will be specifically described below based on the illustrated embodiments. In FIG. 1, reference sign M denotes a pressure ulcer prevention mat, which is used on a suitable bed B so that the patient P sleeps mainly in a supine posture. This pressure ulcer prevention mat M uses a foam mat material 1 having an appropriate thickness, for example, a thickness of about 50 mm to 150 mm, and is made of a silicone gel material in the middle of the pressure receiving cross section direction, that is, the vertical cross section direction. The pressure receiving optimization portion 2 is provided, and the foam mat material 1 further includes a cover sheet 3 on the surface thereof. Of course, in actual use, it is preferable to use the sheet 5 in combination so that at least the upper surface of the cover sheet can be replaced more frequently.

  Each of these constituent members will be described below. First, the foam mat material 1 has a shape having a length of about 1950 mm, a width of about 830 mm, and a thickness of about 60 mm as an example, and the material is foamed polyurethane foam (abbreviated as PU foam in the table of the examples). Resin is applied as an example. Of course, the surface of the foam mat material 1 may be formed in a concavo-convex shape in addition to a flat plate shape. This foam mat material 1 is composed of two layers of mat material layers 1A and 1B, and the hardness of each is changed. For example, for the mat material layer 1A, the industry standard indicating the hardness of this type of material is an Asuka hardness value of about F = 14, and the mat material layer 1B is selected to be harder. Thus, an Asuka hardness value of about F = 35 is used, and it is preferable to set at least the one above the pressure receiving optimization portion 2 to be soft and the lower one to be hard. Of course, the value of the Asuka hardness is related to the thickness dimensions of the mat material layers 1A and 1B, but can be appropriately selected within a range where the object can be achieved. Of course, the mat material layers 1A and 1B are not limited to two layers, and may be a plurality of layers of three layers or more. For example, in Examples 4 and 5 described later, the mat material layers have three layers, The mat material layers 1 </ b> B and 1 </ b> C are provided on the lower surface of the optimization unit 2.

  Next, the pressure receiving optimization part 2 may be equivalent to the entire area of the foam mat material 1, but considering that the patient P sleeps in the supine posture mainly in the central part of the pressure ulcer prevention mat M, the body width is about the same. For example, it may be formed in a range of about 1750 mm in length, 700 mm in width, and about 5 mm in thickness. In configuring the pressure receiving optimization unit 2, a small sheet material 20, for example, a silicone gel material having a length of 350 mm, a width of 700 mm, and a thickness of about 5 mm is used. The silicone gel material constituting the pressure receiving optimization section 2 is αGEL (Alpha Gel: registered trademark) manufactured by Geltech Co., Ltd. (currently Taika Co., Ltd.). For example, a material having a penetration of about 170 according to JISK2207 standard is preferable.

  In the embodiment shown in FIGS. 1 and 2, the pressure receiving optimization portion 2 is a sheet-like one, which is in a state of being sandwiched between the mat material layers 1 </ b> A and 1 </ b> B. Further, as shown in FIG. 3, for the purpose of integrating the foam mat material 1 and the pressure receiving optimization portion 2, an adhesion reinforcing hole 21 having a diameter of about several tens of millimeters, for example, about 30 mm in diameter is formed in the pressure receiving optimization portion 2. The mat material layers 1A and 1B may be bonded to each other at this portion, so that the pressure receiving optimization portion 2 may be held in a stitched state. In such a configuration, in the case where the silicone gel material sheet constituting the pressure receiving optimization unit 2 is divided into small pieces as shown in the figure (small piece sheet material 20), the arrangement position thereof is maintained. It is preferable in that it can be actively achieved. In the embodiment shown in FIGS. 1 and 3, the pressure receiving optimization unit 2 is a sheet having the same thickness, but considering that the pressure receiving state differs depending on the part as shown in FIG. For example, the pressure receiving state can be changed in accordance with the pressure receiving value, such as changing the thickness.

  Further, the cover sheet 3 that covers the entire surface is only required to ensure air permeability as appropriate, and the texture is preferably as bulky as possible. Therefore, it is an example to which three-dimensional knitting such as so-called Russell knitting, which is close to knitting, can be applied rather than weaving. The cover sheet 3 itself is preferably removable from the pressure ulcer prevention mat M and can be washed, but it is also possible to apply a cover sheet that has been further treated to enhance its therapeutic functions such as antifungal and antibacterial properties. preferable.

  Furthermore, the sheet 5 provided on at least the upper surface of such a pressure ulcer prevention mat M is designed to allow more frequent replacement, and has water repellency depending on the situation of the patient P, taking into account, for example, measures at the time of incontinence. An appropriate one can be selected.

  The embodiment of the present invention is as described above, and specifically, Examples 1 to 5 as shown in Tables 1 to 5 below were configured.

  According to these examples, as shown in FIG. 5, the pressure receiving area S can be made larger than that of a conventional mattress, for example, and the pressure at the sacral region a, which is a frequent occurrence of pressure ulcers, is about 30 mmHg or less, which is sufficient compared to the conventional case. A reduced one was obtained.

DESCRIPTION OF SYMBOLS 1 Foam mat material 1A Matt material layer 1B Matt material layer 1C Matt material layer 2 Pressure-optimization part 3 Cover sheet 5 Sheet 20 Sheet-like sheet material 21 Adhesion reinforcement hole a Sacral part B Bed M Pressure ulcer prevention mat P Patient S Pressure receiving area

Claims (5)

A pressure-acoustic prevention mat used in a supine position by a patient by forming a pressure-receiving optimization portion made of a silicone gel material in the middle of the pressure-receiving cross-sectional direction of a rectangular foam mat material, wherein the foam mat material includes a pressure-optimization portion. Formed by a mat material layer with a plurality of different hardnesses on the top and bottom, while the pressure receiving optimization part is a state in which elongated sheet-shaped sheet materials are arranged in parallel in the longitudinal direction of a plurality of foamed mat materials And the pressure receiving optimization portion has a needle penetration (JISK2207) of 50 to 250.
The small piece sheet material constituting the pressure receiving optimization portion has a pair of adhesion reinforcing holes on both sides of the longitudinal intermediate portion, and the upper and lower mat material layers are formed at the adhesion reinforcing hole portions. 2. The pressure ulcer prevention mat according to claim 1, wherein the mat is attached to each other and the pressure receiving optimization portion is held.
The pressure-sensitive mat according to claim 1 or 2, wherein the foamed mat material is set so that the hardness is higher in the upper part than the pressure receiving optimization part made of a silicone gel material compared to the lower part.
4. The pressure ulcer prevention mat according to claim 1, 2, or 3, wherein the pressure receiving optimization portion made of the silicone gel material changes its pressure receiving state according to a pressure receiving value.
  The mat material layer is formed one layer up and down with a pressure receiving optimization part made of a silicone gel material interposed therebetween. The upper mat material layer has Asuka hardness (F type) 5 to 35, and the lower mat material layer has Asuka. 5. A pressure ulcer prevention mat according to claim 3 or 4, which has a hardness (F type) of 10 to 60.

Images