WO2013157534A1 - Matelas ayant une appropriation améliorée pour les soins infirmiers et les traitements médicaux - Google Patents

Matelas ayant une appropriation améliorée pour les soins infirmiers et les traitements médicaux Download PDF

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Publication number
WO2013157534A1
WO2013157534A1 PCT/JP2013/061255 JP2013061255W WO2013157534A1 WO 2013157534 A1 WO2013157534 A1 WO 2013157534A1 JP 2013061255 W JP2013061255 W JP 2013061255W WO 2013157534 A1 WO2013157534 A1 WO 2013157534A1
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Prior art keywords
foam
mattress
elastic foam
gel sheet
layer elastic
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PCT/JP2013/061255
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English (en)
Japanese (ja)
Inventor
英 石川
重利 望月
宣弘 笹澤
Original Assignee
株式会社タイカ
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Application filed by 株式会社タイカ filed Critical 株式会社タイカ
Priority to JP2013541895A priority Critical patent/JP5555384B2/ja
Priority to CN201380020973.5A priority patent/CN104244896B/zh
Publication of WO2013157534A1 publication Critical patent/WO2013157534A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05715—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with modular blocks, or inserts, with layers of different material

Definitions

  • the present invention relates to a mattress suitable for pressure ulcer prevention and the like, which has an enhanced effect of preventing symptoms called bed sores or pressure ulcers that may occur in patients who are bedridden, and is particularly optimized for use conditions, and It relates to mattresses with improved care and medical aptitudes that have been improved, such as improved sanitary properties through improved cleaning suitability.
  • a foam mattress is a mattress in which a foam material (elastic foam) such as polyurethane foam is singly or laminated, and is also called a stationary mattress because pressure control by power is not required unlike an air mattress. Due to the characteristics that can improve the problem of air mattresses, it is often used for users with moderate or low pressure ulcer levels. However, foamed polyurethane, etc., which is generally used as a mattress material for bedding, tends to induce pressure ulcers due to the tendency of the body position pressure to concentrate partially. On the other hand, if it is 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, etc. Had technical incompleteness.
  • a foam material such as polyurethane foam
  • the present applicant has proposed a new technique for solving the technical problem of such a foam mattress, and has already obtained a patent as Japanese Patent No. 4667943 “mat for preventing pressure ulcer” (see Patent Document 1).
  • This technology pays attention to the fact that the user's spine is articulated, and multiple strips of gel sheets are placed between the layers of the foam mat material in a direction perpendicular to the user's spine, so that there are various modes in the height direction.
  • the principle of the invention is to hold the user like a hammock (supporting action) while the gel sheet is elastically deformed (elongated and deformed) in the longitudinal direction according to each part of the sleeping posture.
  • the gel sheet extends to the long direction and acts like a hammock for the user. From this point of view, the present applicant has obtained the following new knowledge while continuing the technological development. That is, because the foam mat material arranged on the upper layer of the gel sheet is a single sheet that covers the entire surface, this foam mat material on the upper layer is accompanied by the sinking of the user's sleeping position. Since tensile stress is generated in all directions, the load (stress) direction acting on the gel sheet is diversified. Therefore, a part of the load is not reflected in the action of the gel sheet extending in the longitudinal direction, so that the supporting action is It was found that there was room for improvement because it was not fully utilized.
  • the equipment used for this type of care / medical care has different requirements depending on the individual physical condition of each user, and technical improvements corresponding to each device are constantly being made. It has been demanded.
  • the specific technical requirements include, for example, improvements to mat materials due to weight differences and deterioration of elastic function, and users who need frequent rollovers (postural changes) and their caregivers. It is an improvement to make it easier to perform, a safety measure when sitting on a bed, and a measure for cleaning and disinfection at regular intervals.
  • the present invention adds further improvements to the foam mattress technology accumulated by the applicant and improves the care and medical aptitude for new pressure ulcer prevention.
  • the proposed mattress is proposed.
  • the mattress with improved care and medical aptitude according to claim 1 is provided between an elastic foam composed of at least a base layer elastic foam and an upper layer elastic foam, and the base layer elastic foam and the upper layer elastic foam.
  • a plurality of strip-shaped gel sheets whose length direction is set in a direction perpendicular to the longitudinal direction of the elastic foam, and at least a part of the upper layer elastic foam disposed above the gel sheet is adjacent to at least two pieces. It is characterized by being configured as a foam block having a width shorter than the length of the gel sheet so as to cross the surface of the mating gel sheet.
  • the mattress with improved care and medical aptitude according to claim 2 is characterized in that a plurality of foam blocks are connected at the lower part. .
  • the foam block has a long piece shape, the longitudinal center line thereof, and the length of the gel sheet.
  • the intersection angle with the direction center line is 90 ° ⁇ 60 °.
  • each foam block has a different shape or property. It consists of features.
  • the mattress with improved care and medical aptitude according to claim 5 has a rebound resilience of the foam block and / or upper layer elastic foam of 50. % Or more (conforms to JIS K6400-3).
  • the mattress with improved care / medical aptitude according to claim 6 is characterized in that the elastic foam has a side portion on its longitudinal side edge. It is characterized in that a hard part is formed.
  • the mattress with improved care and medical aptitude according to claim 8 is positioned so that both ends of the gel sheet overlap the side hard part in plan view in addition to the requirements of claim 6 or 7. It is characterized by being.
  • the mattress with improved care / medical aptitude according to claim 9 includes: A lateral gap extending in the width direction is formed in a range other than the portion located at the waist of the user.
  • the mattress with improved care / medical aptitude according to claim 10 has the requirements of claim 1, 2, 3, 4, 5, 6, 7, 8 or 9 and the base layer elastic foam.
  • the hardness is set to be equal to or higher than the hardness of the upper layer elastic foam, and the hardness of the upper layer elastic foam is 50 to 120 N (conforms to JIS K6400-2: 25% compression).
  • first, second, third, and fourth aspects of the invention it is possible to improve the hammock effect of the gel sheet while maintaining body pressure dispersibility and to maintain a good posture. It is possible to prevent pressure ulcer (rubbing the floor) while reducing the above.
  • the hard portion since the hard portion is present near the side edge portion of the mattress, the hard portion acts as if the mattress is trimmed, and prevents the user from falling off the mattress.
  • the sitting position is stabilized in a state where the mattress is laid on the bed, and as a result, it is possible to improve the stability when further rising from the sitting position.
  • the air permeability and water permeability of the raw material are improved, the washing suitability is increased, and the drying after washing is performed smoothly. Can be improved.
  • reference numeral 1 denotes a mattress according to the present invention, which is laid on an appropriate bed B and used so that a user P sleeps mainly in a supine posture.
  • the bottom surface of the mattress 1 is not shown, but is flat.
  • the gel sheet 3 depicted by a broken line in FIG. 3 is provided inside without being visually recognized from the outside.
  • the mattress 1 of the present invention includes, as main members, an elastic foam 2 including at least a base layer elastic foam 20 and an upper layer elastic foam 21, and a plurality of layers provided between the base layer elastic foam 20 and the upper layer elastic foam 21.
  • the strip-shaped gel sheet 3 is covered with a cover sheet 11 for use.
  • the plurality of strip-shaped gel sheets 3 are arranged in a substantially parallel state over the longitudinal direction of the elastic foam 2 (or mattress 1) with the longitudinal direction orthogonal to the longitudinal direction of the elastic foam 2 (or mattress 1). Is done.
  • a plurality of strip-shaped gel sheets 3 are arranged in a substantially parallel state in a direction in which the long direction is orthogonal to the height direction of the user P (that is, the spine direction) and across the height direction of the user P.
  • the strip-shaped gel sheet 3 extends in the longitudinal direction and exhibits a support effect that acts like a hammock on the user P.
  • the said orthogonal does not necessarily need to be strictly perpendicular, and the longitudinal direction of the gel sheet 3 is generally the width direction of the elastic foam 2 within a range where the hammock-like support effect is exhibited. It only has to be arranged. Further, as shown in FIGS.
  • the mattress 1 is provided for the purpose of preventing the user P from falling off the mattress 1 and for stabilizing the sitting position in a state where the user is seated on the bed B on which the mattress 1 is laid. It is more preferable to use a configuration including the side hard portion 4 provided along the long edge portion.
  • the side rigid portion 4 can be provided on both the base layer elastic foam 20 and the upper layer elastic foam 21, but if a large hardness difference (hardness gap) occurs on the upper layer surface of the mattress 1, the sitting stability is impaired. Therefore, it is preferable to provide the base layer elastic foam 20.
  • the gel sheet 3 is a member effective for preventing pressure ulcers and maintaining a good sleeping posture, which are the main purposes of the present invention.
  • the gel sheet 3 is provided with a foam block 22 to be described later.
  • the part is referred to as the supporting action part 5.
  • the elastic foam 2 has, for example, a shape having a length of 1950 mm, a width of 780 mm, and a thickness of about 50 to 200 mm, and has rebound resilience (sometimes referred to simply as elasticity).
  • a foamed resin such as foamed polyurethane is applied as an example.
  • These dimensions and materials, as well as the magnitude of the resilience and the compression / restoration characteristics are appropriately changed according to the body shape of the user P and the properties required of the mattress 1.
  • the elasticity in the elastic foam 2 includes viscoelasticity having a viscous element.
  • the foamed resin either closed cell or open cell can be applied, but open cell foam is preferable from the viewpoint of air permeability. Furthermore, from the viewpoint of further improving the air permeability and water permeability, it is more preferable to use a film-free foam (film-free foam) in which the bubble membrane is removed to achieve communication.
  • the film foam can be obtained by removing the foamed resin after molding by a crushing method, an alkali treatment method, a blasting method, or the like.
  • the hardness of the base layer elastic foam 20 is equal to or higher than the hardness of the upper layer elastic foam 21, and the base layer portion 20 and the first base layer elastic foam 20a are the same as the mattress 1 illustrated in FIGS.
  • the double-layer elastic foam 20b is composed of two layers, it is preferably set so as to gradually become harder as the distance from the gel sheet 3 in the thickness direction of the mattress 1 increases.
  • the hardness of the upper elastic foam 21 is set to 50 to 120 N (conforms to JIS K6400-2: 25% compression), and the hardness of the base layer elastic foam 20 is equal to or higher than the hardness of the upper elastic foam 21 (hard). .
  • the side hard portion 4 is formed of a foamed resin such as polyurethane foam which is harder (high hardness or high resilience) than the base layer elastic foam 20 and the upper layer elastic foam 21. Furthermore, you may vary the hardness of the elastic foam 2 for every site
  • the gel sheet 3 is formed with dimensions of, for example, a length of 450 mm, a width of 80 mm, and a thickness of about 2 mm.
  • the material of the gel sheet 3 is, for example, a silicone material such as ⁇ GEL (alpha gel: registered trademark) manufactured by Taika Corporation, a urethane gel such as human skin gel (human skin: registered trademark) manufactured by EXCIAL Corporation, Cosmo Keiki Co., Ltd. Olefin-based gels such as Cosmo PE gel (registered trademark) manufactured by the Company can be applied.
  • the hardness of the gel sheet 3 is preferably in the range of, for example, Asker hardness value C0-40 (conforming to SRIS 0101 standard) or penetration (JISK2207 25 ° C.) 50-250.
  • the gel in the present invention includes the concept of a so-called rubber material, and is not limited to the gel material exemplified above, as long as the effects of the present invention are not impaired, silicone rubber, urethane rubber, acrylic rubber, etc. Also known rubber materials can be applied. These dimensions and hardness are appropriately changed according to body conditions such as the body shape and weight of the user P and the properties required for the mattress 1.
  • the design may be changed such as increasing the hardness, increasing the size to increase the pressure receiving area, or increasing the thickness of the gel sheet.
  • the gel sheet 3 is in the form of a sheet having the same thickness, but considering that the pressure receiving state varies depending on the body part of the user P, the thickness is correspondingly increased.
  • the pressure receiving state can be changed in accordance with the pressure receiving value, for example, by changing the pressure or by using a rectangular shape other than a rectangle.
  • the “hardness” is generally a value measured with a hardness meter corresponding to the hardness range. In the present invention, in order to define the hardness in the low hardness region of the Asker C hardness in more detail, It is regulated in accordance with the input.
  • cover sheet 11 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, is applicable rather than weaving.
  • the cover sheet 11 itself is preferably removable from the mattress 1 and can be cleaned, but it is preferable to apply a cover sheet that has been further treated to further improve its therapeutic functions such as antifungal properties and antibacterial properties.
  • the sheet 6 provided on at least the upper surface of the mattress 1 is designed to allow more frequent replacement.
  • a sheet having water repellency in consideration of measures at the time of incontinence, etc. An appropriate one can be selected.
  • a specific form of the mattress 1 is such that the entire thickness of the elastic foam 2 is about 50 mm to 200 mm, and the elastic foam 2 provided below the gel sheet 3 is used as the base layer elastic foam 20.
  • the elastic foam 2 provided above the gel sheet 3 (on the user side) is referred to as an upper layer elastic foam 21.
  • the same definition is applied even when the upper layer elastic foam 21 and the base layer elastic foam 20 have a multilayer structure. As a result, the gel sheet 3 is sandwiched and provided between at least a part of them.
  • the elastic foam 2 in the mattress 1 shown in FIG. 5A is constituted by a base layer elastic foam 20 and an upper layer elastic foam 21.
  • the elastic foam 2 in the mattress 1 shown in FIG. 5 (b) is configured by a base layer elastic foam 20 having a first base layer elastic foam 20a and a second base layer elastic foam 20b provided on top of this.
  • the upper layer elastic foam 21 is further stacked thereon.
  • the base layer elastic foam 20, the upper layer elastic foam 21, the side hard portion 4, and the gel sheet 3 are bonded to each other using a known adhesive or welding method (also referred to as adhesive fixation).
  • the mattress 1 is assembled.
  • the gel sheet 3 does not necessarily need to be adhesively fixed over the entire surface. In order to obtain a hammock-like support effect, at least both ends should be adhesively fixed to the base layer elastic foam 20 and / or the upper layer elastic foam 21. That's fine.
  • the second base layer elastic foam 20b includes the gel sheet 3 and
  • the first base layer elastic foam 20a and the second base layer elastic foam 20b do not necessarily have to be bonded as long as they are bonded and fixed to the upper layer elastic foam 21.
  • a slope that descends inward is formed on the inner side of the side hard part 4. 1 to 4 show a form in which the gel sheet 3 is not positioned above the side hard part 4, but a form in which the gel sheet 3 is arranged so as to overlap the side hard part 4 in plan view may be adopted.
  • the edge part of the gel sheet 3 is stably hold
  • maintained is obtained, and the hammock-like support effect by the gel sheet 3 can be acquired still more reliably.
  • the mattress 1 shown in FIG. 3 has a flat bottom surface, but in order to facilitate the follow-up of the bed B, the width of the mattress 1 is placed on the bottom surface of the lowermost base layer elastic foam 20. You may give the groove process along a direction.
  • the upper-layer elastic foam 21 is divided by providing a gap 24 at the portion of the supporting action portion 5, and the divided portion is used as a foam block 22 (FIG. 5 ( In FIG. 5 (a) to FIG. 5 (c), the foam block 22 is not shown).
  • the upper-layer elastic foam 21 includes not only a single-layer structure but also a multi-layer structure, and the case where the upper-layer elastic foam 21 is a single layer will be described below as an example, and the multi-layer structure will be described later. To do.
  • those shown in FIGS. 6 (b), (c), (e), (f) and (g) have a connecting portion 23.
  • the connecting portion 23 connects the foam block 22 and is integrated with the foam block 22, so that it is substantially simple. It shall be handled as a layer structure.
  • the foam block 22 is arranged on the base layer elastic foam 20 in a state of being individually divided in a sectional view, and the gel sheet 3 and the foam which are the features of the present invention.
  • a configuration in which the lower portion is connected by the connecting portion 23 as shown in FIGS. 6B and 6C can also be adopted.
  • FIG. 6 (b) an independent prismatic foam block 22 is laid down horizontally, and an elastic foam material constituting one connecting portion 23 is positioned at the bottom, and these are bonded or welded together. Is.
  • FIG. 6 (b) an independent prismatic foam block 22 is laid down horizontally, and an elastic foam material constituting one connecting portion 23 is positioned at the bottom, and these are bonded or welded together. Is.
  • FIG. 6 (c) shows an independent prismatic foam block 22 lying on its side, with a rectangular bar-like elastic foam material positioned on its lower side, and these are bonded or welded together.
  • the connecting portion 23 functions to reinforce the adhesive fixing between the foam block 22 and the gel sheet 3 and / or the base layer elastic foam 20, for example. Further, when the surface of the gel sheet 3 has adhesiveness (tackiness), the connecting portion 23 covers the surface of the gel sheet 3, and thus has an effect of preventing adhesion dirt such as dust on the gel sheet 3. Note that the material and properties of the connecting portion 23 may be the same as or different from those of the foam block 22. Thus, between the foam blocks 22 connected by the connecting portion 23, there is a certain interval, and this is referred to as a gap portion 24.
  • FIG. 6D by forming a gap portion 24 by cutting the upper portion of a solid elastic foam material into a slit shape, it is as if a plurality of long foam blocks 22 have voids 24. It can also be configured to be connected in a formed state.
  • the configurations of FIGS. 6B and 6C can be easily formed, and the same effects as the configurations of FIGS. 6B and 6C are realized.
  • productivity can be improved.
  • interval part 24 should not have a remarkable influence with respect to deformation
  • the width of the gap portion 24 may be zero.
  • the width of the gap 24 becomes too wide, it may be difficult to turn over or change the body posture, and the sleeping comfort and body pressure dispersibility may be impaired.
  • the value of the width of the gap 24 is the value of the shortest distance between the side surfaces of the adjacent foam blocks 22.
  • the gap 24 is constant, but the gap between the gaps 24 may be changed. The gap 24 is also effective for improving air permeability.
  • the cross-sectional shape in the short direction of these foam blocks 22 is not only a quadrangle as shown in FIGS. 6 (a) to 6 (d), but also a semicircular shape as shown in FIG. 6 (e).
  • a semi-elliptical shape as shown, or a so-called mushroom shape in which the upper portion bulges and the base portion is somewhat narrowed as shown in FIG. 6G can be applied.
  • the upper surface of the foam block 22 is made smooth as shown in FIGS. 6 (a) to 6 (g), and fine irregularities may be formed as shown in FIG. 6 (h). Good.
  • the depth of the gap portion 24 is increased.
  • the thickness dimension of the connecting portion 23 is sufficiently taken, and the depth dimension of the gap portion 24 is set to such an extent that the interlocking property between the gel sheet 3 and the foam block 22, which is a feature of the present invention, is not impaired. It can also be taken shallow. Further, the depth of the gap 24 can be partially varied.
  • the foam block 22 When the foam block 22 is viewed in plan, as shown in FIG. 7 (a), it is independent in a columnar shape, as shown in FIG. 7 (b), a combination of elastic foam materials in the vertical direction, As shown in FIG. 7 (c), a part of one elastic foam material in which a part is cut out so as to form the gap portion 24 can be applied. Furthermore, the material of the foam block 22 may be made different depending on the part corresponding to the body of the user P, for example, so that the hardness differs for each part.
  • an adhesion fixing mode of the gel sheet 3 and the foam block 22 will be described.
  • the gel sheet 3 is combined with the base layer elastic foam 20 and the upper layer elastic foam 21 so as to be sandwiched from above and below.
  • the upper layer elastic foam 21 and the gel sheet 3 may be bonded and fixed in all of the foam blocks 22 or only a part thereof may be fixed.
  • the gel sheet 3 is fixed at both ends in the longitudinal direction.
  • an adhesion reinforcing hole 31 is provided in the gel sheet 3 and the base elastic foam 20 ( The second base layer portion elastic foam 20b) and the foam block 22 (upper layer elastic foam 21) are adhered to each other to securely fix the position.
  • FIG. 8 the features shown in FIG. 8 are illustrated as features in a plan view. That is, in FIG. 8A, two foam blocks 22 are provided so as to be divided at the center with respect to three strip-shaped gel sheets 3. In FIG. 8B, a wide foam block 22 is arranged in the center, and narrow foam blocks 22 are arranged on both sides thereof. Furthermore, what is shown in FIG. 8 (c) is one in which foam blocks 22 of equal width are arranged in parallel at equal intervals. Further, in FIG.
  • FIG. 8 (d) shows a structure in which foam blocks 22 of three kinds of width dimensions are arranged in parallel, with the widest foam block 22 arranged in the center and the narrowest foam on the outside. A block 22 is disposed, and a medium-width foam block 22 is disposed on the outside thereof. Further, the size of the gap portion 24 formed on the center side is made wider than the size of the gap portion 24 formed on the outside thereof. Furthermore, what is shown in FIG.
  • the foam blocks 22 are connected to all three gel sheets 3, and the three foam blocks 22 are arranged in a staggered manner and are connected to two gel sheets 3 respectively.
  • the foam block 22 is a long piece, and the intersection angle between the longitudinal center line and the gel sheet 3 is approximately 90 °.
  • the crossing angle can be set within a range in which the effect of the present invention by the interlocking action of the gel sheet 3 and the foam block 22 is obtained. Specifically, 90 ° ⁇ 60 ° is preferable, and 90 ° ⁇ 45 Is more preferable, and 90 ° ⁇ 30 ° is particularly preferable. Further, for example, the crossing angle may be varied for each part corresponding to the upper body, waist, and lower limbs of the user P. However, if the effects of the present invention can be obtained, it is possible to adopt an arrangement mode that deviates from this.
  • an isosceles triangular foam block 22 is arranged in the center, and two gel sheets 3 are connected by this, and further, parallel to the oblique side of the isosceles triangle.
  • straight rows of foam blocks 22 are arranged in two rows.
  • a straight rod-shaped foam block 22 is arranged at the center, and arc-shaped foam blocks 22 are arranged on both sides thereof with the curved outer periphery facing inward.
  • the width of the gap 24 is not constant, and increases or decreases along the curved outer periphery of the foam block 22.
  • the gap 24 is not constant, and increases or decreases along the outer shape of the foam block 22. Further, the gap 24 is not only formed between the adjacent foam blocks 22, but the gap 24 is also formed between the adjacent foam blocks 22.
  • FIGS. 7 and 8 described above only the form in the support action portion 5 has been described with respect to the arrangement form of the foam block 22 and the gel sheet 3, but the following arrangement is provided as the arrangement form of the mattress 1 as a whole.
  • the embodiment shown in FIG. 9A shows an example in which the gel sheet 3 is disposed over the substantially entire length direction (longitudinal direction) of the mattress 1 and the supporting action portion 5 is configured over the entire surface. It is. Further, in the embodiment shown in FIG. 9B, the gel sheet 3 is disposed over the substantially entire length direction (longitudinal direction) of the mattress 1, but the foam block 22 is disposed only at the portion corresponding to the waist of the user P.
  • the supporting action portion 5 is formed at this portion.
  • the gel sheet 3 is disposed over substantially the entire length direction (longitudinal direction) of the mattress 1, and the body of the user P with respect to the foam block 22. Is formed in a range in the width direction where the main part is located, and a lateral gap 25 perpendicular to the gap 24 is provided in a range other than the vicinity of the region corresponding to the waist of the user P. .
  • lumbar corresponds to the center area
  • the lateral gap 25 has a depth that does not impair the interlocking between the gel sheet 3 and the foam block 22, which is a feature of the present invention, and is not more than the depth of the gap 24. .
  • the width of the lateral gap portion 25 becomes too wide, it may be difficult to turn over or change the posture, and is preferably 10 mm or less, more preferably 5 mm or less, particularly preferably 3 mm or less, A part or all of the side surfaces of the adjacent foam blocks 22 separated by the directional gap portion 25 may be in contact with each other (corresponding to the case where the width of the lateral gap portion 25 is 0 mm).
  • the value of the width of the lateral gap 25 is the value of the shortest distance between the side surfaces of the adjacent foam blocks 22.
  • the size of the lattice portion formed by the gap 24 and the lateral gap 25 is preferably 30 to 50 mm ⁇ 30 to 50 mm.
  • the size range is equivalent to the standard buttock contact size for adults in the supine position. Especially effective. If the size of the grid portion is smaller than this range, the apparent hardness of the upper layer elastic foam 21 may be too low (soft), and it may be difficult to turn over, and if the size of the grid portion is large, the upper layer is particularly high.
  • the arrangement of the gel sheet 3 is different from that of the mattress 1 shown in FIG. 9 (c), and the portion corresponding to the waist of the user P who is most loaded is applied. Only the gel sheet 3 is provided.
  • the arrangement of the gel sheet 3 can be applied to the configuration shown in FIG. 9D.
  • the number of the gel sheets 3 is changed according to the body shape of the user P, the shape of the gel sheets 3 is partially changed, and further, the interval between the gel sheets 3 is changed for each part. Is possible.
  • the embodiment described above is an example in which the upper layer elastic foam 21 is formed as a single layer.
  • the embodiment in which the upper layer elastic foam 21 is a multilayer will be described. Description will be made by focusing on the portion of the foam block 22.
  • the foam block 22 has a two-layer structure of a first foam block 22a and a second foam block 22b.
  • the width of the foam block 22b has the same dimension, and as a result, the interval portion 24 has the same dimension throughout the depth direction.
  • the second foam block 22b shown in FIG. 10A is divided into a discontinuous and laminated state on the first foam block 22a.
  • the performance of the mattress 1 is changed.
  • the embodiment shown in FIG. 10 (c) is an example in which the width of the first foam block 22a is smaller than the width of the second foam block 22b in the foam block 22 shown in FIG. 10 (a). is there.
  • the embodiment shown in FIG. 10D is an example in which the width of the second foam block 22b in the foam block 22 shown in FIG. 10A is smaller than the width of the first foam block 22a.
  • the effect of the mattress 1 of the present invention can be further diversified by making the width of each layer of the foam block 22 made of multiple layers different. In the embodiment shown in FIGS.
  • the second foam block 22b is discontinuous and the first foam block is dissimilar to the embodiment shown in FIG. 10 (b). It is good also as a lamination
  • the second foam block 22b may be arranged orthogonal to the first foam block 22a. In this embodiment, since the second foam block 22b is deformed in the same direction as the gel sheet 3, the gel sheet is formed when the gap 24 of the first foam block 22a is wide or the arrangement interval of the gel sheets 3 is wide. The action which assists the hammock-like support effect by 3 can be added.
  • the first foam block 22a and the second foam block 22b have different hardness, thickness, and resilience, so that the feeling of use such as body pressure dispersibility and rollover is appropriately selected. It becomes possible to do.
  • the mattress 1 of the present invention adopts the embodiment as described above as an example, and the operation principle thereof will be described below based on the embodiment shown in FIGS.
  • the mattress 1 of the present invention can realize a suitable sleeping posture by supporting the user P's body (especially the waist) in the support action portion 5, and the principle is on the gel sheet 3.
  • the upper layer elastic foam 21 (single layer) to be laminated is divided so as to intersect with the gel sheet 3, and the direction of the tensile stress of the upper layer elastic foam 21 when the user lies down acts on the gel sheet 3 efficiently.
  • the plurality of gel sheets 3 are caused to act in cooperation with the foam block 22 which is the divided upper layer elastic foam 21, and the width direction of the gel sheet 3 is determined by the presence of each foam block 22 and the gap 24.
  • the pulling action is not impaired.
  • the gel sheet 3 exhibits an ideal pulling action in the width direction, and the actions and effects of the supporting action part 5 become more remarkable by newly adding a linkage action with a plurality of gel sheets 3. It is. Specifically, since the hammock-like support effect by the gel sheet 3 is improved while maintaining the body pressure dispersibility and the good posture is maintained, the pressure ulcer is reduced while reducing the burden on the body of the user P. It is possible to prevent (floor rubbing). Further, when the foam block 22 and / or the upper layer elastic foam 21 is applied with a high resilience foam having a resilience of 50% or more (conforming to JIS K6400-3), an operation when the user P turns over Can be made easier.
  • the side hard portion 4 since the side hard portion 4 is present near the side edge of the mattress 1, the side hard portion 4 acts as if the mattress 1 is trimmed, and prevents the user P from falling off the mattress 1.
  • the sitting position is stabilized in the state where the mattress 1 is laid on the bed B, and as a result, it is possible to improve the stability when further rising from there.
  • a film-free foam as a raw material, the air permeability and water permeability of the raw material are improved, the washing suitability is increased, the drying after washing is performed smoothly, and the sanitary property can be improved.
  • the mattress 1 of the present invention is not limited to this example.
  • a gel sheet 3 two-component addition type silicone gel CF5106 manufactured by Toray Dow Silicone Co., Ltd .: Asker C hardness 25 compliant with SRIS 0101 standard
  • 12 types of mattresses 1 having different patterns of the foam blocks 22 were produced from the types 1 to 4 of the mattresses 1 having the specifications shown in 2 to 5 as described above. It was set to 12.
  • each mattress the elastic foam 2 and the gel sheet 3 which are constituent members of the mattress are bonded and fixed to the surfaces where the respective members are in contact with each other using a urethane-based adhesive.
  • the hardness values in Tables 2 to 5 are measured values based on JIS K6400-2 (25% compression: Method D).
  • As a comparative example in the mattress 1 of types 1 to 4, there is no pattern of the foam block 22 (a structure in which one upper layer elastic foam 21 is laminated on the entire surface of the base elastic foam 20). These were designated as Comparative Examples 1 to 4.
  • the type 1 mattress 1 is constructed as shown in FIG. 5 (a), and the type 2 mattress 1 is constructed as shown in FIG. 5 (b).
  • the mattresses 3 and 4 are configured as shown in FIG. In FIG. 5 (c), the slope that descends toward the inside of the side hard part 4 is indicated by imaginary lines, but the side hard part 4 in the mattress 1 of type 3 or 4 is This is indicated by a solid line with no slope.
  • the type 4 mattress 1 is one in which a film-free foam is applied as all urethane foam.
  • the pattern 1 of the foam block 22 is as shown in FIG. 11 and is provided with an independent block pattern in which a vertical gap 24 (width 2 mm) is formed.
  • the pattern 2 is as shown in FIG. 12, and the gap portion 24 (width 2 mm, depth 30 mm) is formed by connecting the foam block 22 by the connecting portion 23.
  • the pattern 3 is as shown in FIG. 13, and a lateral gap 25 (width 1 mm, depth 20 mm) is formed with respect to the pattern 2.
  • the foam blocks 22 of the patterns 2 and 3 are formed by partially cutting the elastic foam 2 so as to be in a half cut state. Further, in the foam block 22 of the pattern 3, the depth of the vertical gap portion 24 is formed deeper than the depth of the horizontal gap portion 25.
  • the bottom surface of the foam block 22 or the upper layer elastic body 21 shown in FIGS. 11 to 13 is in a flat state as shown in the bottom view of FIG.
  • the arrangement pattern of the gel sheets 3 is the same as that of the mattress 1 of types 1 to 4, and four gel sheets 3 are arranged at equal intervals in the central portion corresponding to the waist of the user P as shown in FIG. It was set as the pattern to arrange
  • the structure that the gel sheet 3 is positioned by the adhesion reinforcing hole 31 is adopted, and the adhesion reinforcing hole 31 is formed at a position of 60 mm from the longitudinal end of the gel sheet 3 with a diameter of 40 mm.
  • body pressure dispersibility is evaluated by placing a sensor sheet of a body pressure dispersion measuring device (BIGMAT) manufactured by NITTA on a mattress 1 (without a cover sheet 11 and a sheet 6), and a BMI index (Body Mass Index). Eighteen subjects (male in their 20s) were allowed to sleep in the supine position, and the maximum value of the sacral body pressure (sacral pressure) 20 seconds later was measured.
  • BIGMAT body pressure dispersion measuring device
  • the evaluation of the retention of sleeping posture was conducted for three subjects each having a BMI index of 18, 20, 22, 24, 26, and 28, and a mattress 1 of type 1 to 4 (without a cover sheet 11 and a sheet 6) and a comparative example. Compared to the conventional mattress (no pattern), sleeping in the supine position, it was crawled and compared with the comparative example, it was judged that the number of persons who felt that the posture retention was improved was 10 or more. “The case where there were less than 10 people was judged as inappropriate, and“ x ”was assigned.
  • the evaluation of the fitting property to the heel was performed in a lattice shape composed of the gap portion 24 and the lateral gap portion 25 of the pattern 3 for each of the three subjects having a BMI index of 18, 20, 22, 24, 26, and 28.
  • the correlation between the size of the lattice part and the fitting property of the ridges was investigated.
  • the conventional mattress is a flat plate in which the upper layer elastic foam 21 in the mattress 1 of types 1 to 4 is the same material and the same thickness, but the foam block 22 is not formed. And correspond to the mattresses of Comparative Examples 1 to 4, respectively.
  • the sacral pressure (body pressure dispersibility) test results using the mattress 1 of types 1 to 4 adopting the patterns 1 to 3 described above are all about 25 to 27 mmHg as shown in Tables 6 and 7. It was confirmed that good body pressure dispersibility equivalent to or better than Comparative Examples 1 to 4 in Table 8 can be realized.
  • the size of the lattice-shaped portion constituted by the gap 24 and the lateral gap 25 is 39 mm.
  • the dimensions of the lattice-like portions are 20 mm ⁇ 20 mm, 30 mm ⁇ 30 mm, 50 mm ⁇ 50 mm,
  • 60 mm ⁇ 60 mm the heel fitting feeling was evaluated. The evaluation results were the same as shown below for any mattress 1 (Examples 3, 6, 9, and 12).
  • the fitting feeling was good, but the operation such as turning over was difficult compared to the case of 39 mm ⁇ 38 mm. Moreover, when it was set to 60 mm x 60 mm, the feeling of resilience to the wrinkles was felt compared with the case of 39 mm x 38 mm. On the other hand, in the case of 30 mm ⁇ 30 mm and 50 mm ⁇ 50 mm, the fitting feeling was the same as that in the case of 39 mm ⁇ 38 mm. Therefore, the portion corresponding to the buttocks is composed of the gap 24 and the lateral gap 25. It can be seen that the size of the lattice-shaped portion is preferably 30 to 50 mm ⁇ 30 to 50 mm.
  • the lattice-shaped portions with different dimensions are formed in a region including a portion where the lattice-shaped portions are formed in FIG. 13, and are formed at both ends in the width direction of the mattress 1 (regions where the gap portion 24 is not formed).
  • the dimensions were different from those shown in FIG. 13 depending on the dimensions of the grid-like portion.
  • the present invention has the configuration exemplified above, and distributes the entire pressure while maintaining a good posture in the supine posture of the user (patient) P, and also concentrates the pressure on the part where many pressure ulcers occur. It was also possible to prevent pressure ulcers onset.

Abstract

L'objectif de cette invention est de résoudre le problème technique de la conception d'un nouveau matelas ayant une appropriation améliorée pour les soins infirmiers et les traitements médicaux, capable de prévenir les escarres. Pour ce faire, la présente invention est caractérisée en ce qu'elle comprend : des formes élastiques comprenant une forme élastique pour couche de base et une forme élastique pour couche supérieure, formées de manière à obtenir au moins deux couches ; et une pluralité de bandes d'une feuille de gel, qui se trouvent entre les formes élastiques et dont le sens de la longueur est orienté perpendiculairement au sens de la longueur des formes élastiques ; une partie au moins de la forme élastique de la couche supérieure disposée au-dessus de la feuille de gel, qui est à l'état intégré, étant conçue de façon à former un bloc plus étroit que la longueur de la feuille de gel de façon à couper la surface d'au moins deux bandes adjacentes de la feuille de gel.
PCT/JP2013/061255 2012-04-18 2013-04-16 Matelas ayant une appropriation améliorée pour les soins infirmiers et les traitements médicaux WO2013157534A1 (fr)

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CN201380020973.5A CN104244896B (zh) 2012-04-18 2013-04-16 提高了护理/医疗适合性的床垫

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US9226863B1 (en) 2015-03-30 2016-01-05 King Saud University Mattress for relieving pressure ulcers
CN105287126A (zh) * 2015-06-26 2016-02-03 江南大学 一种具有导尿功能的寝具
WO2019036393A1 (fr) * 2017-08-14 2019-02-21 Casper Sleep Inc. Matelas contenant un endosquelette ergonomique et de régulation de la fermeté
USD862104S1 (en) 2018-03-21 2019-10-08 Casper Sleep Inc. Platform bed frame
USD885640S1 (en) 2018-10-23 2020-05-26 Casper Sleep Inc. Lamp assembly
US10736300B2 (en) 2016-08-16 2020-08-11 Casper Sleep Inc. Dog mattress
JP2020527371A (ja) * 2017-07-20 2020-09-10 パープル イノベーション，エルエルシー 被覆されたエラストマークッション要素を含むクッション及び関連の方法
USD897133S1 (en) 2015-11-16 2020-09-29 Casper Sleep Inc. Duvet cover
USD908398S1 (en) 2019-08-27 2021-01-26 Casper Sleep Inc. Mattress
USD921531S1 (en) 2019-09-10 2021-06-08 Casper Sleep Inc. Zipper
US11039514B2 (en) 2018-01-08 2021-06-15 Caster Sleep Inc. Interactive portable lighting system
USD927889S1 (en) 2019-10-16 2021-08-17 Casper Sleep Inc. Mattress layer
US11202517B2 (en) 2014-04-21 2021-12-21 Casper Sleep Inc. Mattress
US11241100B2 (en) 2018-04-23 2022-02-08 Casper Sleep Inc. Temperature-regulating mattress
US20230293369A1 (en) * 2022-01-26 2023-09-21 Boontham Nithi-Uthai Anti-bedsore mattress with improved load-bearing component

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JP6203892B1 (ja) * 2016-03-30 2017-09-27 株式会社タイカ 介護・医療適性を向上させたマットレス
CN106109139A (zh) * 2016-06-30 2016-11-16 江苏永发医用设备科技股份有限公司 防压疮床垫
JP7170579B2 (ja) * 2019-04-19 2022-11-14 ユニ・チャーム株式会社 スキンケアシート

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US11622636B2 (en) 2014-04-21 2023-04-11 Casper Sleep Inc. Mattress
US11202517B2 (en) 2014-04-21 2021-12-21 Casper Sleep Inc. Mattress
US9226863B1 (en) 2015-03-30 2016-01-05 King Saud University Mattress for relieving pressure ulcers
CN105287126A (zh) * 2015-06-26 2016-02-03 江南大学 一种具有导尿功能的寝具
USD897133S1 (en) 2015-11-16 2020-09-29 Casper Sleep Inc. Duvet cover
US10736300B2 (en) 2016-08-16 2020-08-11 Casper Sleep Inc. Dog mattress
JP2020527371A (ja) * 2017-07-20 2020-09-10 パープル イノベーション，エルエルシー 被覆されたエラストマークッション要素を含むクッション及び関連の方法
JP7273715B2 (ja) 2017-07-20 2023-05-15 パープル イノベーション，エルエルシー 被覆されたエラストマークッション要素を含むクッション及び関連の方法
JP2020532348A (ja) * 2017-08-14 2020-11-12 キャスパー スリープ インコーポレーテッドＣａｓｐｅｒ Ｓｌｅｅｐ Ｉｎｃ． 人間工学的で硬さを調節可能な内骨格を含むマットレス
WO2019036393A1 (fr) * 2017-08-14 2019-02-21 Casper Sleep Inc. Matelas contenant un endosquelette ergonomique et de régulation de la fermeté
US11116326B2 (en) 2017-08-14 2021-09-14 Casper Sleep Inc. Mattress containing ergonomic and firmness-regulating endoskeleton
US11039514B2 (en) 2018-01-08 2021-06-15 Caster Sleep Inc. Interactive portable lighting system
USD862104S1 (en) 2018-03-21 2019-10-08 Casper Sleep Inc. Platform bed frame
USD904784S1 (en) 2018-03-21 2020-12-15 Casper Sleep Inc. Platform bed frame
US11241100B2 (en) 2018-04-23 2022-02-08 Casper Sleep Inc. Temperature-regulating mattress
USD885640S1 (en) 2018-10-23 2020-05-26 Casper Sleep Inc. Lamp assembly
USD915660S1 (en) 2018-10-23 2021-04-06 Casper Sleep Inc. Lamp assembly
USD990935S1 (en) 2019-08-27 2023-07-04 Casper Sleep Inc. Mattress
USD919333S1 (en) 2019-08-27 2021-05-18 Casper Sleep Inc. Mattress
USD908398S1 (en) 2019-08-27 2021-01-26 Casper Sleep Inc. Mattress
USD992933S1 (en) 2019-08-27 2023-07-25 Casper Sleep Inc. Mattress
USD992932S1 (en) 2019-08-27 2023-07-25 Casper Sleep Inc. Mattress
USD993673S1 (en) 2019-08-27 2023-08-01 Casper Sleep Inc. Mattress
USD921531S1 (en) 2019-09-10 2021-06-08 Casper Sleep Inc. Zipper
USD932809S1 (en) 2019-10-16 2021-10-12 Casper Sleep Inc. Mattress layer
USD927889S1 (en) 2019-10-16 2021-08-17 Casper Sleep Inc. Mattress layer
US20230293369A1 (en) * 2022-01-26 2023-09-21 Boontham Nithi-Uthai Anti-bedsore mattress with improved load-bearing component

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