EP2798980A1 - Matratze - Google Patents

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Publication number
EP2798980A1
EP2798980A1 EP20140166760 EP14166760A EP2798980A1 EP 2798980 A1 EP2798980 A1 EP 2798980A1 EP 20140166760 EP20140166760 EP 20140166760 EP 14166760 A EP14166760 A EP 14166760A EP 2798980 A1 EP2798980 A1 EP 2798980A1
Authority
EP
European Patent Office
Prior art keywords
mattress
recesses
present
foam
recess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20140166760
Other languages
English (en)
French (fr)
Inventor
Rudolf Hubert Pieter Keizers
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Formafoam BV
Original Assignee
Formafoam BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Formafoam BV filed Critical Formafoam BV
Publication of EP2798980A1 publication Critical patent/EP2798980A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/144—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress or cushion
    • 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

Definitions

  • the present invention relates to a mattress comprising an upper mattress, which provides a reclining surface for a person, and a lower mattress, which lower mattress and upper mattress are both made of a resilient material.
  • the present invention further relates to a method for manufacturing such a mattress.
  • Mattresses are known per se, they are generally used as a reclining surface in a bed, for instance in a bedstead, on a slatted base, on a spiral base or on a boxspring, for supporting a person's body, usually in a lying position. Furthermore, so-called water mattresses are commercially available, in which a water-filled bag of synthetic material is used as a supporting surface for a person's body, to which mattress a good and even support of the body is attributed.
  • EP 1 719 436 there is known a mattress which comprises a mattress body as well as a cover permanently fitted on the mattress body, such as a cover impermeable to moisture, which mattress body has at least two mattress body sections.
  • a mattress is also known from European publication EP 1 352 597 , for example, in which a covering fully surrounds the mattress body sections.
  • a decubitus ulcera mattress consists of two foam layers, which comprises recesses only in the "upper” foam layer, over the entire thickness thereof, providing so-called foam bodies. Thus, recesses can be formed at various positions in the upper foam layer so as to thus remedy the problem of bedsores.
  • the lower foam layer does not have any such recesses.
  • Such a mattress further comprises a cover that is fitted by means of a zip fastener. The upper and lower foam layers are joined together by means of an adhesive.
  • the present invention in particular relates to a mattress that can be used in healthcare, in particular in situations in which there is a risk of decubitus or pressure necrosis, also referred to as bedsores.
  • decubitus is attributed to wounds that develop as a result of pressure forces, sliding forces or friction forces or combinations thereof on the tissue. It is assumed that the constant pressure causes small blood vessels to be shut off, as a consequence of which the tissue is insufficiently provided with oxygen and nutrients.
  • a number of factors are supposed to contribute toward the development of decubitus, viz. the duration of the pressure on the tissues, the magnitude of the pressure forces or sliding forces, mobility, blood circulation, the person's weight, tissue tolerance and, among other factors, medicine usage.
  • Special decubitus mattresses are commercially available, in which connection especially alternating pressure mattresses, gel mattresses, gel pillows, water mattresses, but also so-called air mattresses are to be considered. Said mattresses each function to reduce or eliminate the pressure in order to prevent decubitus from developing.
  • Another object of the present invention is to provide a mattress whose purpose is to realise a pressure reduction at positions where the risk of the development of decubitus is greatest.
  • Yet another object of the present invention is to provide a mattress which can be used in hospitals or nursing homes or in a domestic situation, which mattress can be cleaned in a simple manner.
  • the present invention as referred to in the introduction is characterised in that one or more recesses are present in at least one of the upper mattress and the lower mattress, which one or more recesses are located near the boundary surface between the upper mattress and the lower mattress, wherein said one or more recesses are present at the location of the tailbone and/or the heel part of a person lying on said mattress.
  • One or more of the above objects is achieved by using such a mattress.
  • a mattress By positioning the one or more recesses near the boundary surface between the upper mattress and the lower mattress, a mattress is obtained which effects a good- pressure distribution of a person lying thereon.
  • the one or more recesses are thus "confined” in the final mattress as a result of the aforesaid position near the boundary surface between the upper mattress and the lower mattress, which means that the one or more recesses are not accessible from “outside”, so that the adherence and accumulation of dirt, or fluids, to/in the aforesaid recess(es) is minimised.
  • Another advantageous aspect of positioning the one or more recesses near the boundary surface between the upper mattress and the lower mattress is that the final mattress does not exhibit any visible spaces, cavities of recesses or pits, on the outside thereof, which is found to be pleasant because the mattress looks like an ordinary mattress.
  • mention of an upper mattress and a lower mattress has been made in the foregoing, it is possible in certain embodiments to use one or more additional layers, in particular layers of a resilient material so as to thus obtain a specific property, e.g. air permeability or resilient behaviour, of the final mattress.
  • additional layers may be disposed between the upper mattress and the lower mattress, but also on a side adjacent to one of the upper mattress and the lower mattress, remote from the boundary surface between the upper mattress and the lower mattress.
  • the one or more recesses are present at the location of the tailbone and/or the heel part of a person lying on said mattress.
  • a recess in the present mattress at the position where the tailbone and/or the heel part of the person lying on the mattress is located.
  • Such a mattress is therefore characterised by two recesses, viz. a recess for the tailbone and a recess for the heel part.
  • Other positions for providing one or more recesses are for example the positions where the elbows, the shoulder blade, the hip, the ankles, the back of the head and, for example, the knees are located.
  • the present mattress in particular provides a construction in which one or more recesses are provided to prevent the occurrence of decubitus as much as possible.
  • the purpose of the aforesaid recesses is to reduce the pressure load of a patient near a particular body part.
  • the present recesses are thus provided only at positions where said decrease of the pressure load is wanted.
  • Such recesses must not be confused with the spaces which are hollow on one side and which are arranged in a matrix pattern over the entire area of the upper part of a mattress, as discussed above with regard to European publication EP 0 290 674 .
  • the present recesses are not spaces or chambers which are hollow on one side and which are arranged in a matrix pattern over the entire area of the upper part of a mattress.
  • the present mattress is provided with a recess at the location of the tailbone, it is desirable that said recess has a length of 10-25 cm and a width of 5-15 cm, wherein the length can be regarded as the dimension in the longitudinal direction of said mattress. Said dimensions provide a recess, in particular for the tailbone, which is capable of providing pressure relief.
  • the terms length and width are used herein, it should be understood that the recess(es) may be circular, square, rectangular, triangular or elliptical in shape.
  • the present mattress is provided with a recess at the location of the heel part, it is desirable that said recess has a length of at most the width of the mattress and a width of 5-40 cm, preferably 10-30 cm.
  • the recess for the heel part may thus be located at the short end of the mattress, extending over the entire width of the mattress.
  • the recess for the heel part may comprise two separate, separated recesses, so that in fact there is a recess for the left heel and a recess for the right heel.
  • Recesses for the heel part may join the transverse edge and/or the longitudinal edge of the mattress or form an "island" in the mattress.
  • the aforesaid dimensions provide a recess, in particular for the heel part, which is capable of providing pressure relief.
  • the terms length and width are used, it should be understood that the recess(es) may be circular, square, rectangular, triangular or elliptical in shape.
  • the one or more recesses referred to in the present application are preferably provided in the form of a hollow cavity or codend shaped cavity. It is also possible, however, that the one or more recesses have the shape of a cylinder, a sphere, a pyramid or a block, or of a combination thereof.
  • the one or more recesses referred to in the present application preferably do not extend over the entire thickness, or a part thereof, of the upper and/or the lower mattress.
  • the one or more recesses be present in the lower mattress. In another embodiment it is also possible, however, that the one or more recesses are present both in the upper mattress and in the lower mattress. From a production point of view it is desirable, however, that the one or more recesses be provided in the upper mattress or in the lower mattress, preferably in the lower mattress.
  • the forming of the one or more recesses takes place by milling or cutting the resilient material of which the mattress is made out of a lower mattress or an upper mattress, or both, only at specific positions.
  • a recess for example for the tailbone, is made up of a recess formed in the upper mattress and the recess formed in the lower mattress, in which case it is preferable that the two recesses be "contiguous" to one another after the upper mattress has been positioned on top of the lower mattress.
  • the recess in the upper mattress has a dimension different from that of the recess in the lower mattress, with the two recesses in the final construction of upper mattress and lower mattress cooperating to realise a good pressure distribution.
  • the upper mattress and the lower mattress be joined together by means of an adhesive layer.
  • the upper mattress and the lower mattress are joined together by means of a Velcro closure.
  • the type of foam that is used for the upper mattress is different from the type of foam that is used for the lower mattress, in which connection it is in particular preferable that the foam used for the upper mattress is of the viscoelastic type, also referred to as memory foam.
  • the foam used for the upper mattress is of the viscoelastic type, also referred to as memory foam.
  • a resilient foam is preferably used for the lower mattress.
  • the upper mattress in a special embodiment of the present mattress, it is possible for the upper mattress to comprise one or more detachable parts at a short end thereof, in particular it is possible for the lower mattress to comprise one or more detachable parts at a short end thereof.
  • the use of such detachable parts makes it possible to take additional pressure-distributing measures, for example by enabling the heels "to lie unsupported".
  • both the upper mattress and the lower mattress be enclosed in a cover, which cover is detachable, in which case it is in particular preferable that the cover is provided with a closure, in particular selected from zip closure and/or Velcro closure, so as to be able to completely enclose the aforesaid mattress in the cover.
  • a recess is only present at the location of the tailbone in the appended figures 1 and 2 , it should be understood that, based on the above introduction, it is also possible to provide recesses at other positions, for example at the location of the shoulder blades or the heels. It is also possible to provide the present mattress with one or more detachable parts, in particular at a short end of the lower mattress or the upper mattress, in order to thus realise an additional pressure reduction.
  • the recesses formed may be present partially or entirely in the upper mattress and/or the lower mattress.
  • the lower mattress is schematically indicated at 1.
  • the lower mattress 1 has a width 2 and a length 3 wherein in the mattress 1, a cavity 4 has been formed, for example by milling.
  • the cavity 4 does not extend over the entire thickness of the lower mattress 1, but only over a specific part of the thickness thereof.
  • an upper mattress (not shown) is placed on top of the lower mattress 1, which lower mattress 1 and upper mattress can be joined together by using an adhesive layer (not shown), for example. It is also possible, however, to join the lower mattress 1 and an upper mattress together by means of a Velcro construction (not shown).
  • Figure 2 shows an embodiment of a mattress 10 according to the present invention, comprising an upper mattress 5 and a lower mattress 1 joined thereto, with a recess 4 being located near the boundary surface between the upper mattress 5 and the lower mattress 1.
  • FIG 3 an embodiment of a lower mattress according to the present invention is schematically indicated at 11.
  • the lower mattress 11 has a width 12 and a length 13 wherein in the mattress 11, a cavity 14 for the tailbone and a cavity 16 for the heel part have been formed, for example by milling. Neither the cavity 14 nor the cavity 16 extends over the entire thickness of the lower mattress 11; they only extend over a specific part of the thickness thereof.
  • the cavity 16 is represented as an "island" in the lower mattress 11, but in another embodiment the short side 17 may also coincide with the length 13. It is also possible for the long side 18 to coincide with the width 12, so that the cavity 16 is adjacent to the width 12.
  • both the short side 17 and the long side 18 coincide with the length 13 and the width 12, respectively.
  • the cavity 16 can be regarded as two separate, separated cavities, each for a specific heel part, viz. the left heel part and the right heel part.
  • an upper mattress (not shown) is placed on top of the lower mattress 11
  • an upper mattress (not shown) is placed on top of the lower mattress 11, which lower mattress 11 and upper mattress can be joined together by using an adhesive layer (not shown), for example. It is also possible, however, to join the lower mattress 11 and an upper mattress together by means of a Velcro construction (not shown).
  • FIG 4 there is shown an embodiment of a mattress 110 according to the present invention, comprising an upper mattress 15 and a lower mattress 11 joined thereto, in which a cavity 14 and the cavity 16 are present near the boundary surface between the upper mattress 15 and the lower mattress 11.
  • the mattress 10 has only one recess 4, it is possible in a special embodiment to provide several recesses, in particular at those positions where a person lying on the upper mattress 5 experiences pressure, for example at the location of the shoulder blade or the hip. It is also possible to provide the mattress 10 with a detachable part at the short end thereof, for example at the location of the heel part, which detachable part may extend over the entire width of the upper mattress 5.
  • Examples of a resilient foam for the lower mattress 1, 11 include foam materials of the HDS55H/M/W types (marketed by Lucaswerk Eupen), also referred to as high-resilience PU foam.
  • Examples of the foam for the upper mattress 5, 15 include foams of the viscoelastic type, such as TCS50M/W or also CMTC65W (marketed by Lucastechnik Eupen), also referred to as viscoelastic PU foam.
  • the present invention is by no means limited to such special foam types, however, nor to the number of cavities or recesses in the present mattress.
  • a different type of foam 22 may be used for the part at the foot of the upper mattress 5, 15, in particular over the entire width of the upper mattress, than for the remaining part 25 of the upper mattress 5, 15. It is desirable that the part at the foot of the upper mattress be provided with foam of a different hardness than the rest of the upper mattress, for example over a length of 30 cm.
  • the upper mattress is preferably cut off obliquely at one end, and the part 26 thus cut off obliquely is substituted for a foam part 22 of a different hardness, preferably a foam part of a hardness lower than that of the remaining part 25 of the upper mattress, which foam part 22 closely abuts the oblique part.
  • the oblique part of the foam part 22 extends over a distance 23; the "new foam part" thus to be provided preferably covers the cavity 16 present in the lower mattress.
  • the upper mattress obtained with such a foam part that closely abuts the oblique part has a thickness which is uniform over substantially the entire area of the upper mattress.
  • the foam part that closely abuts the oblique part is joined to the upper mattress by means of an adhesive, for example. Cutting the part off obliquely is preferable so as to effect a more or less even transition of hardness and/or resilience.
  • the cavity 4, 14, 16 is provided in the lower mattress 1, 11, it is possible in another embodiment to form the recess 4, 14, 16, or several recesses, entirely in the upper mattress 5, 15 or, according to another embodiment, partially in the lower mattress 1, 11 and partially in the upper mattress 5, 15.
  • the cover has been left out in all the above-discussed embodiments.

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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
EP20140166760 2013-05-02 2014-05-01 Matratze Withdrawn EP2798980A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2010742A NL2010742C2 (nl) 2013-05-02 2013-05-02 Matras.

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EP2798980A1 true EP2798980A1 (de) 2014-11-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700048264A1 (it) * 2017-05-04 2018-11-04 Materassificio Montalese S P A Un materasso in poliuretano con almeno una superficie esterna riportante disegni e geometrie in alto/basso rilievo
US11672344B2 (en) 2021-07-14 2023-06-13 Anthro Form, Llc Support surface

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846857A (en) * 1972-03-10 1974-11-12 Neurological Res And Dev Group Multi-section variable density mattress
US4631768A (en) * 1984-02-29 1986-12-30 C. R. Diffen Transport Pty. Ltd. Composite bed mattress
WO1987006442A1 (en) 1986-05-01 1987-11-05 Comfortex, Inc. Decubitus ulcer mattress
EP0290674A1 (de) 1987-05-14 1988-11-17 rokado-Metall-Holz-Kunststoff GmbH & Co. KG Matratze aus einem elastischen Kunststoffmaterial
GB2301529A (en) * 1995-05-26 1996-12-11 Michael Torpey A mattress
US6223371B1 (en) * 1999-04-15 2001-05-01 Steven J. Antinori Mattress and method of manufacture
EP1352597A1 (de) 2002-04-11 2003-10-15 Jos Biesmans Sprungfedermatratze
US20040098806A1 (en) 2002-11-22 2004-05-27 Adolf Stender Shaped body, in particular for a seat cushion
EP1719436A1 (de) 2005-05-03 2006-11-08 Irene Clementine Mirjam Best Antidekubitus-Matratze mit Beschichtung
WO2007092243A2 (en) * 2006-02-02 2007-08-16 Bg Industries, Llc. Pressure reduction healthcare mattress system
US20110059830A1 (en) * 2009-09-09 2011-03-10 Reese Matthew G Exercise mat with removable portion
US20110154576A1 (en) * 2009-04-24 2011-06-30 Foamex Innovations Operating Company Mattress adapted for supporting heavy weight persons
US20130081208A1 (en) * 2011-09-30 2013-04-04 Offloading Technologies Inc. Methods and systems for a dynamic support mattress to treat and reduce the incidence of pressure ulcers

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846857A (en) * 1972-03-10 1974-11-12 Neurological Res And Dev Group Multi-section variable density mattress
US4631768A (en) * 1984-02-29 1986-12-30 C. R. Diffen Transport Pty. Ltd. Composite bed mattress
WO1987006442A1 (en) 1986-05-01 1987-11-05 Comfortex, Inc. Decubitus ulcer mattress
EP0290674A1 (de) 1987-05-14 1988-11-17 rokado-Metall-Holz-Kunststoff GmbH & Co. KG Matratze aus einem elastischen Kunststoffmaterial
GB2301529A (en) * 1995-05-26 1996-12-11 Michael Torpey A mattress
US6223371B1 (en) * 1999-04-15 2001-05-01 Steven J. Antinori Mattress and method of manufacture
EP1352597A1 (de) 2002-04-11 2003-10-15 Jos Biesmans Sprungfedermatratze
US20040098806A1 (en) 2002-11-22 2004-05-27 Adolf Stender Shaped body, in particular for a seat cushion
EP1719436A1 (de) 2005-05-03 2006-11-08 Irene Clementine Mirjam Best Antidekubitus-Matratze mit Beschichtung
WO2007092243A2 (en) * 2006-02-02 2007-08-16 Bg Industries, Llc. Pressure reduction healthcare mattress system
US20110154576A1 (en) * 2009-04-24 2011-06-30 Foamex Innovations Operating Company Mattress adapted for supporting heavy weight persons
US20110059830A1 (en) * 2009-09-09 2011-03-10 Reese Matthew G Exercise mat with removable portion
US20130081208A1 (en) * 2011-09-30 2013-04-04 Offloading Technologies Inc. Methods and systems for a dynamic support mattress to treat and reduce the incidence of pressure ulcers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700048264A1 (it) * 2017-05-04 2018-11-04 Materassificio Montalese S P A Un materasso in poliuretano con almeno una superficie esterna riportante disegni e geometrie in alto/basso rilievo
US11672344B2 (en) 2021-07-14 2023-06-13 Anthro Form, Llc Support surface
US12114786B2 (en) 2021-07-14 2024-10-15 Anthro Form, Llc Support surface

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