EP2015656B1 - Matelas en mousse avec siège - Google Patents

Matelas en mousse avec siège Download PDF

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Publication number
EP2015656B1
EP2015656B1 EP07748479.8A EP07748479A EP2015656B1 EP 2015656 B1 EP2015656 B1 EP 2015656B1 EP 07748479 A EP07748479 A EP 07748479A EP 2015656 B1 EP2015656 B1 EP 2015656B1
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EP
European Patent Office
Prior art keywords
foam
mattress
sitting
module
layer
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Active
Application number
EP07748479.8A
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German (de)
English (en)
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EP2015656A1 (fr
EP2015656A4 (fr
Inventor
Magnus Högberg
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Individual
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/15—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays consisting of two or more layers
    • 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
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/015—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position
    • 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 foam mattress, according to the preamble of claim 1.
  • a foam mattress is known for example from CH 686 487 A5 .
  • the bed bottom of which is split in order to be able to raise the head end of the bed such that the patient will be able to sit up in the bed.
  • the bottom of the bed is moreover commonly split in four with one joint above the seat of the patient, one joint just below and one joint at the knees of the patient.
  • Another object is to be able to provide a flexible mattress that can be adapted to the user's need of support.
  • the advantage is achieved that a mattress of improved durability can be provided. Yet another advantage is that the mattress provides improved comfort for the person sitting on the mattress, while retaining or improving the lying comfort.
  • the mattress is comparatively simple in design, which gives a cost benefit.
  • Fig. 1 shows a planar view of a foam mattress 1 according to the invention, as seen from above.
  • the mattress will be described as if divided in three longitudinal sections; a head section 3, a middle section 4 and a foot section 5, the demarcations being indicated by imaginary lines C 1 and C 2 .
  • the head section comprises the portion of the mattress upon which a person rests at least his/her head and preferably also his/her shoulders.
  • the foot section comprises the lower portion of the mattress upon which the feet and also the legs are positioned.
  • the middle section forms the largest portion of the mattress and comprises the position of the torso and the thighs and extends between the head section and the foot section.
  • Fig. 2 shows a longitudinal section along line A-A, of a foam mattress 1 which is an illustrative example, and is not part of the invention.
  • the mattress consists of a lying module 6 in the form of a first layer of foam 7 that in this very simple embodiment comprises the entire above mentioned head section 3 and foot section 5 as well as an upper layer of the middle section 4.
  • This first layer of foam 7 is manufactured from a foam of a first hardness H1, in the range 50 ⁇ H1 ⁇ 150 N, preferably 100-140 N and most preferred 110-130 N, according to a standard test method called ISO 2439 B.
  • this first layer of foam 7 has a thickness Tali in the range 4-50 cm, preferably 8-25 cm and most preferred 10-15 cm. Generally, the higher the weight of the user, the more important it is to correctly choose the hardness and the thickness of the sitting module.
  • the middle section 4 of the mattress comprises a sitting module 8 positioned on the underside of the mattress in the form of a lower, second layer of foam 9 of a second hardness H2 that is higher than said first hardness H1.
  • the second hardness H2 of said second layer of foam 9 being 150 ⁇ H2 ⁇ 300 N, preferably 170-250 N and most preferred 180-220 N at a thickness T L2 of the second layer of foam 9 in the range of 2-25 cm, preferably 3-8 cm, most preferred 4-6 cm, the sitting and lying comfort of the mattress can be optimised.
  • the sitting module 8 comprises 25-50%, preferably 25-40% and even more preferred 25-35% of the length L of the mattress and is positioned essentially centrally.
  • the sitting module 8 has an extension that is symmetrical in the longitudinal direction as well as in the cross-direction of the mattress, in order to avoid the risk of the mattress being turned in the wrong direction.
  • the sitting module 8 comprises at least 50%, more preferred at least 75% and most preferred at 100% of the width B of the mattress and is positioned such that it comprises the part of the mattress upon which the seat of a person sitting in the bed is positioned when the bed is in a sitting position.
  • the simplest way of forming the sitting module is as an essentially rectangular layer of even thickness of said middle section 4, which is most easily attached to the first layer 7 of foam by gluing, although other ways of joining the layers can be used, as is known to the skilled person.
  • the entire mattress is covered in an elastic and pliable cover, not shown.
  • Fig. 3 shows a longitudinal section along line A-A, of the middle section 4 of a mattress 1 according to a preferred embodiment of the invention.
  • the sitting module 8 comprises supporting wings 10, 11 that extend towards the head section and the foot section, respectively.
  • the extension in the cross-direction of the respective supporting wings 10, 11 corresponds to the extension of the sitting module 8.
  • the supporting wing has a gradually decreasing thickness in the direction towards said head and foot section, respectively, at least in the area closest to the middle portion 12 of the sitting module.
  • the supporting wings 10, 11 at least partially extend gradually upwards, inwards into the mattress in a convex portion, whereby an ergonomic supporting function can be achieved by the sitting module 8 thereby comprising a deeper part in the middle portion 12, where the pelvis/hips of a person should be positioned.
  • the supporting wings 10, 11 form a more shallow part of the sitting module and thereby a supporting function can be achieved for the curve of the back/the waist and the thighs, respectively.
  • the convex portion changes to a straight portion that can be given a desired extension in the longitudinal direction of the mattress, not longer however than for the shoulders to be able to sink down in the mattress.
  • the supporting wing is manufactured from a foam of the same hardness as the middle portion of the sitting module.
  • the middle portion 12 of the sitting module forms 40-80% of the total length X of the sitting module.
  • the middle portion 12 has a length X 1 of about 30-60 cm, preferably about 40 cm and the respective supporting wings 10, 11 have a length X 2 of 10-30 cm, preferably about 20 cm.
  • the thickness of the first layer of foam 7 varies along the sitting module 8.
  • the first layer of foam 7 has a first thickness T L1 that is larger than a second thickness T' L1 in the parts above the supporting wings 10, 11.
  • the first layer of foam 7 has a first thickness T L1 of about 8 cm at a hardness H1 of 120 N.
  • the thickness T L2 of the second layer of foam 9 in the middle portion 12 is about 4 cm thick at a hardness H2 of 190 N.
  • the third layer of foam forms an integral part of the first layer of foam and preferably the same type of foam is used in order to enable easy manufacturing. It is furthermore not a disadvantage if the middle portion 12 of the sitting module is allowed to bulge out somewhat at the underside of the mattress, as is shown in the figure. Hereby, the consumption of material in the first layer of foam 7 can be decreased without negatively influencing the lying comfort.
  • the mattress according to the invention will on the contrary contribute to the ability to choose the hardness of the sitting module 8 such that the second layer of foam 9 gets somewhat compressed when the person lies on the mattress, whereby an increased support can be achieved for the curve of the back/the waist and the thighs of the patient also when the patient is lying down.
  • the supporting wings 10, 11 form a continuous integral part of the sitting module 8, which has proven to give some production advantages but which also means that the supporting wings 10, 11 are kept in place in relation to the middle portion 12 of the sitting module, thereby ensuring good function of the mattress.
  • the function and the user friendliness also benefit from the sitting module 8 being fixedly connected to the lying module 6, such as by gluing and/or welding or other manners known to the person skilled in the art.
  • Fig. 4 shows a side view of a preferred embodiment of a mattress according to the invention, when used in a sitting position.
  • the front supporting wing 10 extends a distance up along the back and gives improved support for the curve of the back/the waist of the person. It is advantageous to form the mattress such that the supporting wing changes to the thicker middle portion 12 of the sitting module level with the joint 13 for the backrest of the bottom of the bed. When the backrest is raised, the pressure is redistributed such that the major part of the load ends up on the middle portion 12 of the sitting module.
  • the mattress can be designed such that the sitting module 8 preferably is active when the patient is sitting up, while the lying module 6 preferably is active when the patient is lying down.
  • the lying module should give enough support for a lying person without the middle portion of the sitting module being experienced as dominant.
  • the two supporting wings 10, 11 it may suitably be supplemented by a top overlay mattress 14 which somewhat reduces the shearing forces that may arise between the skin and the underlying body tissue and that in time may give rise to injuries. In that case, the thickness of the first layer of foam 7 can be reduced.
  • Fig. 5 shows a longitudinal section of a mattress 1 which is an illustrative example, and is not part of the invention.
  • the mattress comprises a sitting module 8 with supporting wings 10, 11, but the sitting module has been given a simplified shape and for the sake of simplicity it has been positioned on the underside of the lying module 6.
  • the invention is not limited to that described above but may be varied within the scope of the claims. It should be understood that a mattress with the lying module and/or the sitting module consisting of a combination of a plurality of layers of foam of varying hardness is comprised in the scope of the invention.
  • the first layer of foam may for example be divided into a plurality of sublayers of different hardness. In that case, the sublayer closest on top of the sitting module can be 4-6 cm thick and have a hardness of about 120 N. On top of this, a somewhat softer upper sublayer can be arranged with the purpose of increasing the comfort or giving particularly preferred medical properties such as pressure relief.
  • the upper sublayer can have a hardness of 80-100 N at a thickness of 4-6 cm and may furthermore be cut in a manner known to the person skilled in the art, for example cut in cubes, which will result in particular advantages for the user.
  • the mattress may also be provided with an additional layer of foam that extends along the entire bottom of the mattress as well as under the sitting module. This additional bottom layer will give an additional possibility of optimizing the supporting properties of the mattress and suitably it can be used by heavier users as it will allow extra support and improved comfort over the entire mattress, for such users.
  • the additional bottom layer may for example be given a thickness of about 3 cm at a hardness of about 190 N, which will make the mattress particularly suited for user weights of above 200 kg.
  • the person skilled in the art will realise that a subdivided first layer of foam can be combined with an additional bottom layer and naturally that the mattress can be designed to have either a subdivided first layer of foam or an additional bottom layer.
  • the sitting module can be provided with only a single supporting wing.
  • the supporting wing/wings and the sitting module can be manufactured from foams of different hardness, whereby the supporting wing/wings can be given properties that fulfil more and other needs of the person.
  • the third layer of foam, that together with the first layer of foam encloses the supporting wing/wings, can be of a third hardness in order to further optimize the supporting properties.
  • the sitting module is not limited to have a rectangular shape but that other shapes of the sitting module can be suitable too.
  • the sitting module may for example be round, elliptic, triangular, heart shaped or kidney shaped.
  • the thickness and the hardness of the foam within the middle portion of the sitting module can varied if varying properties are desired within the sitting module, thereby to give different properties in different places.
  • the mattress can be formed with a detachable sitting module 8.
  • a foam mattress is achieved which offers the possibility of individualised adaptation depending on the weight of the user.
  • Such a mattress also offers the possibility to exchange the sitting or lying module in case it has become worn. This embodiment will also allow for a simplified production of the mattress.
  • the sitting module and the lying module are fixed in relation to each other by a releasable joint, such as a Velcro joint, a zip fastener and/or buttons and/or by a mattress cover that is arranged to keep the sitting module and the lying module in their respective mutual positions.
  • a releasable joint such as a Velcro joint, a zip fastener and/or buttons and/or by a mattress cover that is arranged to keep the sitting module and the lying module in their respective mutual positions.
  • the mattress according to the invention has been described from the viewpoint of use within medical care. It should be understood that the mattress according to the invention is suitable not only for such users but that it also can be used by persons that for other reasons spend a lot of time in bed. Private use of the mattress is also within the scope of the invention, in newer beds that increasingly comprise a sitting function.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Claims (12)

  1. Un matelas en mousse (1), lequel matelas (1) comprend une portion de tête (3), une portion médiane (4) et une portion de pied (5) et comprend une première couche de mousse (7) qui comprend au moins une couche de ladite portion de tête (3), de la portion intermédiaire (4) et de la portion de pied (5), ladite première couche de mousse (7) étant fabriquée partir d'une mousse d'une première dureté (H1), le matelas comprenant en outre une deuxième couche de mousse (9) qui comprend au moins en partie ladite portion médiane (4) et qui est fabriquée à partir d'une mousse d'une deuxième dureté (H2), de sorte que la deuxième dureté (H2) de la deuxième couche de mousse est plus dure que la première dureté (H1) de la première couche de mousse du matelas, le matelas étant apte à être utilisé dans un lit, le fond du lit étant réglable au moins en une position couchée et en une position assise, ladite première couche de mousse (7) constituant une couche supérieure agencée pour former un module allongé (6) qui porte une personne couchée dans le lit, ladite deuxième couche de mousse (9) constituant une couche inférieure formant un module d'assise (8), qui est positionné essentiellement au centre de la portion intermédiaire (4), grâce à quoi un confort d'assise amélioré et un soutien accru est obtenu lorsque la personne est assise dans le lit, ledit module d'assise (8) comprenant une première et / ou une deuxième aile d'appui (10, 11) qui s'étend vers la portion de tête (3) du matelas et / ou vers la portion de pied (5) du matelas, respectivement, lesdites première et / ou deuxième aile d'appui (10, 11) ayant une épaisseur qui diminue progressivement en direction de ladite portion de tête (3) et / ou de pied (5), respectivement, et la première et / ou deuxième aile d'appui (10, 11) étant formée de la mousse de deuxième dureté (H2), caractérisé en ce que ledit module d'assise (8) présente une extension symétrique par rapport à la direction transversale du matelas, laquelle l'extension comprend au moins 50%, de préférence au moins 75% et de manière la plus préférée 100% de la largeur (B) du matelas, et en ce que ladite première et / ou deuxième aile d'appui (10, 11) s'étend au moins en partie progressivement vers le haut, vers l'intérieur du matelas dans une partie convexe.
  2. Un matelas en mousse selon la revendication 1, caractérisé en ce que ledit module d'assise (8) comprend entre 25 et 50% de la longueur (L) du matelas, ledit module d'assise (8) comprend la partie du matelas sur lequel le bassin d'une personne assise dans le lit est positionné lorsque le lit est située dans une position assise.
  3. Un matelas en mousse selon la revendication 1, caractérisé en ce que l'extension de la première aile d'appui dans la direction transversale correspond à l'extension du module d'assise (8).
  4. Un matelas en mousse selon la revendication 1, caractérisé en ce que l'extension de la deuxième aile d'appui dans la direction transversale correspond à l'extension du module d'assise (8).
  5. Un matelas sen mousse selon l'une quelconque des revendications précédentes, caractérisé en ce que, dans la partie située au-dessus de la partie médiane (12) du module d'assise, c'est à dire la partie la plus profonde, la première couche de mousse (7) a une première épaisseur (T11) qui est supérieure à une deuxième épaisseur (T'L1) dans la partie située au-dessus de l'aile d'appui (10, 11).
  6. Un matelas en mousse selon l'une quelconque des revendications précédentes, caractérisé en ce que ladite aile d'appui (10, 11) forme une partie continue, attenante au module d'assise (8).
  7. Un matelas en mousse selon la revendication 1, caractérisé en ce que la première dureté (H1) de ladite première couche de mousse (7) répond à la caractéristique selon laquelle 50 ≤ H1 < 150 N, de préférence est compris entre 100 et 140 N, et de manière la plus préférée est compris entre 110 et 130 N, et / ou en ce que la deuxième dureté (H2) de ladite deuxième couche de mousse (9) répond à la caractéristique selon laquelle 150 < H1 ≤ 300 N, de préférence est compris entre 170 et 250 N, et de manière la plus préférée est compris entre 180 et 220 N.
  8. Un matelas en mousse selon la revendication 1, caractérisé en ce que ladite première couche de mousse (7) a une épaisseur (TL1) située dans l'intervalle allant de 4 à 50 c, de préférence de z à 25 cm, et de manière la plus préférée de 10 à 15 cm, et / ou en ce que ladite deuxième couche de mousse (9) a une épaisseur (TL2) située dans l'intervalle allant de 2 à 25 cm, de préférence de 3 à 8 cm, et de manière la plus préférée, de 4 à 6 cm.
  9. Un matelas en mousse selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le module d'assise (8) forme une unité fixe du module allongé (6), le module d'assise (8) étant assemblé au module allongé (6), par exemple par collage et / ou soudage.
  10. Un matelas en mousse selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le module d'assise (8) forme une unité amovible vis-à-vis du module allongé (6), le module d'assise (8) et le module allongé (6) étant immobilisés l'un par rapport à l'autre par une liaison amovible.
  11. Un matelas en mousse selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le module d'assise comprend une partie médiane (12) qui forme de 40 à 80%, de préférence environ 50%, de la longueur totale (X1) du module d'assise.
  12. Un matelas en mousse selon l'une quelconque des revendications précédentes, caractérisé en ce que le module d'assise a une longueur (X1) de l'ordre de 30 à 60 cm, de préférence de l'ordre de 40 cm, et en ce que l'aile d'appui (10, 11) a une longueur (X2) de 10 à 30 cm, de préférence d'environ 20 cm.
EP07748479.8A 2006-05-08 2007-05-08 Matelas en mousse avec siège Active EP2015656B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0601040A SE531479C2 (sv) 2006-05-08 2006-05-08 Skummadrass med sittfunktion
PCT/SE2007/050318 WO2007129981A1 (fr) 2006-05-08 2007-05-08 Matelas en mousse avec siège

Publications (3)

Publication Number Publication Date
EP2015656A1 EP2015656A1 (fr) 2009-01-21
EP2015656A4 EP2015656A4 (fr) 2012-01-18
EP2015656B1 true EP2015656B1 (fr) 2014-11-19

Family

ID=38668010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07748479.8A Active EP2015656B1 (fr) 2006-05-08 2007-05-08 Matelas en mousse avec siège

Country Status (4)

Country Link
EP (1) EP2015656B1 (fr)
DK (1) DK2015656T3 (fr)
SE (1) SE531479C2 (fr)
WO (1) WO2007129981A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5871377B2 (ja) * 2012-01-23 2016-03-01 パラマウントベッド株式会社 マットレス用クッション体
NL2025966B1 (nl) * 2019-06-30 2021-05-25 Tegel Omar Compacteerbare matras en werkwijze
US12022957B2 (en) * 2021-12-27 2024-07-02 Bed Patent Holdings Limited Liability Company System and method for customizing a mattress
SE548025C2 (en) * 2023-05-12 2026-01-13 Care Of Sweden Ab Foam mattress comprising an upper body slidingly arranged over a lower body and further arranged with inserts

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
DE1259018B (de) * 1965-08-17 1968-01-18 Guenther Mann Matratze fuer bandscheibengeschaedigte Personen
ES350735A1 (es) * 1968-02-21 1969-05-01 Colchones Anatomicos Espanola Perfeccionamientos en los colchones para usos clinicos y o-tros.
US3846857A (en) * 1972-03-10 1974-11-12 Neurological Res And Dev Group Multi-section variable density mattress
US4356578A (en) * 1980-09-15 1982-11-02 Clark Philip H Obstetrics bed
CH686487A5 (de) 1992-05-20 1996-04-15 Doc Ag Latexmatratze.
US6115861A (en) * 1997-10-09 2000-09-12 Patmark Company, Inc. Mattress structure
US6223371B1 (en) * 1999-04-15 2001-05-01 Steven J. Antinori Mattress and method of manufacture
WO2003084368A1 (fr) * 2002-04-04 2003-10-16 Tae Gu Kang Matelas a durete reglable
DE20310071U1 (de) * 2003-02-13 2003-12-24 Erich Winkle Polsterbetten Einteiliger Grundkörper für eine Matratze aus Schaumstoff oder Latex mit veränderlichen Härtegradzonen
AT413635B (de) * 2004-08-25 2006-04-15 Sembella Gmbh Matratze

Also Published As

Publication number Publication date
EP2015656A1 (fr) 2009-01-21
DK2015656T3 (en) 2015-02-23
SE531479C2 (sv) 2009-04-21
EP2015656A4 (fr) 2012-01-18
WO2007129981A1 (fr) 2007-11-15
SE0601040L (sv) 2007-11-09
WO2007129981A9 (fr) 2008-03-06

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