FR2772261A1 - Mattress for combatting bedsores - Google Patents

Mattress for combatting bedsores Download PDF

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Publication number
FR2772261A1
FR2772261A1 FR9715978A FR9715978A FR2772261A1 FR 2772261 A1 FR2772261 A1 FR 2772261A1 FR 9715978 A FR9715978 A FR 9715978A FR 9715978 A FR9715978 A FR 9715978A FR 2772261 A1 FR2772261 A1 FR 2772261A1
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FR
France
Prior art keywords
studs
mattress according
decubitus mattress
bottom plate
decubitus
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.)
Granted
Application number
FR9715978A
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French (fr)
Other versions
FR2772261B1 (en
Inventor
Louis Oniewski
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.)
SNC ONIEWSKI MEILLER MEDICAL 2
Original Assignee
SNC ONIEWSKI MEILLER MEDICAL 2
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 SNC ONIEWSKI MEILLER MEDICAL 2 filed Critical SNC ONIEWSKI MEILLER MEDICAL 2
Priority to FR9715978A priority Critical patent/FR2772261B1/en
Publication of FR2772261A1 publication Critical patent/FR2772261A1/en
Application granted granted Critical
Publication of FR2772261B1 publication Critical patent/FR2772261B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A47C27/20—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with springs moulded in, or situated in cavities or openings in foamed material
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C21/00—Attachments for beds, e.g. sheet holders, bed-cover holders; Ventilating, cooling or heating means in connection with bedsteads or mattresses
    • A47C21/04—Devices for ventilating, cooling or heating
    • A47C21/042—Devices for ventilating, cooling or heating for ventilating or cooling
    • A47C21/046—Devices for ventilating, cooling or heating for ventilating or cooling without active means, e.g. with openings or heat conductors
    • 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
    • A47C27/146—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities on the outside surface of 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
    • 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
    • A61G7/05707—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with integral, body-bearing projections or protuberances
    • 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

Abstract

The mattress consists of a base panel (2) made from a structured foam with its under surface (2a) shaped to facilitate air circulation, and a supporting surface (3) for a person's body, made in one piece or from interchangeable modules. The supporting surface comprises blocks (3a) with rounded upper edges under a textile covering that leaves the underside of the base exposed. The blocks can be circular or oval in section, in straight or staggered rows, and they can have inner cavities containing biconical springs with flat rounded coils.

Description

MATELAS ANTI-ESCARRES PERFECTIONNE
L'objet de l'invention se rattache au secteur technique des matelas pour lits de malades.PERFECTED ANTI-PRESSURE MATTRESS
The object of the invention relates to the technical sector of mattresses for sick beds.

On connaît de nombreux types de matelas destinés au confort des personnes alitées pendant de longues périodes, en particulier les matelas antiescarres autorisant une modulation des points d'appui du corps. Many types of mattress are known which are intended for the comfort of people who are bedridden for long periods, in particular anti-squares mattresses allowing modulation of the body's support points.

Parmi ces différentes sortes de matelas, on peut citer les matelas (figures 1 et 2) en mousse structurée qui sont constitués d'un cadre (C) formé de plots trapézoïdaux (P1) et de modules amovibles (M) de densité variable, chaque module étant constitué de plusieurs plots trapézoidaux (P2) à section carrée délimitant entre eux des espaces libres de circulation d'air et l'ensemble est enfermé dans une housse complète (H) en matière plastique étanche. Among these different kinds of mattresses, mention may be made of structured foam mattresses (Figures 1 and 2) which consist of a frame (C) formed of trapezoidal studs (P1) and removable modules (M) of variable density, each module consisting of several trapezoidal studs (P2) with square section delimiting between them free spaces for air circulation and the assembly is enclosed in a complete cover (H) made of waterproof plastic.

Ce genre de matelas présente un certain nombre d'inconvénients pour le patient. En effet, la configuration des plots en trapèzes en arête vive et la housse étanche provoquent un échauffement du corps par manque d'aération et température élevée. De plus, les larges espaces entre les plots pour suppléer au manque d'aération, induit un effet de bascule inconfortable pour le patient. This kind of mattress has a number of disadvantages for the patient. Indeed, the configuration of the trapezoidal studs with a sharp edge and the waterproof cover cause the body to heat up due to lack of ventilation and high temperature. In addition, the large spaces between the studs to compensate for the lack of ventilation, induces an uncomfortable rocking effect for the patient.

C'est donc pour pallier à ces inconvénients que l'on a conçu le matelas anti-escarres selon l'invention qui, de par sa conception originale, offre un confort maximum du patient. It is therefore to overcome these drawbacks that the anti-decubitus mattress according to the invention has been designed which, by its original design, offers maximum patient comfort.

Pour cela et selon des caractéristiques importantes, le matelas antiescarres selon l'invention est constitué d'une plaque de fond en mousse structurée avec une face inférieure agencée pour faciliter la circulation de l'air, d'une surface d'appui du corps unitaire ou composée de modules interchangeable en mousse structurée présentant des plots de section courbe à angle arrondi, lesdits plots étant soit de densités différentes suivant les zones du matelas, soit équipés intérieurement d'organes élastiques en appui sur la plaque de fond, L'ensemble plaque de fond-surface d'appui du corps étant enveloppé dans une housse textile laissant libre la face inférieure de la plaque de fond. For this and according to important characteristics, the anti-squares mattress according to the invention consists of a structured foam bottom plate with a lower face arranged to facilitate the circulation of air, of a bearing surface of the unitary body. or composed of interchangeable modules in structured foam having studs of curved section with rounded angle, said studs being either of different densities depending on the zones of the mattress, or fitted internally with elastic members bearing on the bottom plate, The whole plate bottom-support surface of the body being wrapped in a textile cover leaving free the underside of the bottom plate.

Ces caractéristiques et d'autres encore ressortiront de la description qui suit. These characteristics and others will emerge from the description which follows.

Pour fixer l'objet de l'invention sans toutefois le limiter dans les dessins annexés:
la figure 1 est une vue en plan d'un matelas anti-escarres selon l'art antérieur avec la housse enlevée.To fix the subject of the invention without however limiting it in the appended drawings:
Figure 1 is a plan view of an anti-decubitus mattress according to the prior art with the cover removed.

La figure 2 est une vue en coupe longitudinale du matelas selon l'art antérieur. Figure 2 is a longitudinal sectional view of the mattress according to the prior art.

La figure 3 est une vue en plan d'un matelas anti-escarres selon l'invention dans une première forme de réalisation, avec la housse enlevée. Figure 3 is a plan view of an anti-decubitus mattress according to the invention in a first embodiment, with the cover removed.

La figure 4 est une vue en plan d'un matelas anti-escarres selon l'invention dans une deuxième forme de réalisation, avec la housse enlevée. Figure 4 is a plan view of an anti-decubitus mattress according to the invention in a second embodiment, with the cover removed.

La figure 5 est une vue en coupe longitudinale du matelas selon les figures 3 ou 4. FIG. 5 is a view in longitudinal section of the mattress according to FIGS. 3 or 4.

La figure 6 est une vue à plus grande échelle illustrant un plot du matelas selon l'invention équipé intérieurement d'un organe élastique selon une première forme de réalisation. Figure 6 is an enlarged view illustrating a pad of the mattress according to the invention internally equipped with an elastic member according to a first embodiment.

La figure 7 est une vue à plus grande échelle illustrant un plot du matelas selon l'invention équipé d'un organe élastique selon une deuxième forme de réalisation. Figure 7 is an enlarged view illustrating a pad of the mattress according to the invention equipped with an elastic member according to a second embodiment.

Afin de rendre plus concret l'objet de l'invention, on le décrit maintenant sous des formes non limitatives de réalisation illustrées aux figures des dessins. In order to make the object of the invention more concrete, it is now described in nonlimiting embodiments illustrated in the figures of the drawings.

Le matelas anti-escarres référencé dans son ensemble par (1) est constitué d'une plaque de fond (2) en mousse structurée de densité apte à supporter le poids d'un corps sans se déformer. Cette plaque présente sur sa face inférieure (2a) des agencements (2b) facilitant la circulation de l'air (alvéoles, stries, canaux ) et reçoit sur sa face supérieure (2c) la surface (3) d'appui du corps également en mousse structurée, et composée d'une multitude de plots (3a) séparés par des espaces limités de circulation de l'air. The anti-decubitus mattress referenced as a whole by (1) consists of a bottom plate (2) of structured foam density capable of supporting the weight of a body without deforming. This plate has on its lower face (2a) arrangements (2b) facilitating the circulation of air (alveoli, ridges, channels) and receives on its upper face (2c) the support surface (3) of the body also in structured foam, and composed of a multitude of studs (3a) separated by limited spaces for air circulation.

Cette surface d'appui peut être unitaire ou bien formées par plusieurs modules (4) interchangeables comprenant chacun plusieurs plots. This bearing surface can be unitary or else formed by several interchangeable modules (4) each comprising several studs.

Les plots (3a) peuvent être de section circulaire comme illustré figure 3, et soit alignés, soit en quinconce, ou bien de section ovalisée avec leurs grands axes alignés ou décalés, ou encore perpendiculaires entre eux, comme on le voit respectivement en haut , au milieu et en bas de la figure 4. The studs (3a) can be of circular section as illustrated in FIG. 3, and either aligned or staggered, or else of ovalized section with their major axes aligned or offset, or even perpendicular to each other, as seen respectively at the top, in the middle and at the bottom of figure 4.

Ainsi, suivant le positionnement des plots, on obtient entre eux des espaces plus ou moins importants de circulation d'air, étant entendu que plus les espaces seront étroits, plus le matelas sera stable. Thus, depending on the positioning of the studs, more or less large spaces of air circulation are obtained between them, it being understood that the narrower the spaces, the more stable the mattress.

Les arêtes supérieures des plots (3a) présentent de larges arrondis (3b) afin d'éviter toute gêne ou inconfort au patient, et supprimer au maximum les points de compression du corps et les échauffements. The upper edges of the studs (3a) have large rounded edges (3b) in order to avoid any discomfort or discomfort for the patient, and to eliminate as much as possible the points of compression of the body and the heating.

La surface (3) unitaire ou modulaire ainsi réalisée peut présenter une densité uniforme, cela suffira dans les cas pathologiques légers, ou bien des zones de densités différentes pour les cas plus sérieux. The unitary or modular surface (3) thus produced may have a uniform density, this will suffice in mild pathological cases, or else areas of different densities for more serious cases.

Pour satisfaire aux conditions d'utilisation les plus défavorables, on prévoit d'équiper intérieurement les plots (3a) d'organes élastiques remplaçant les variations de densité de la mousse. To satisfy the most unfavorable conditions of use, provision is made to equip the studs (3a) internally with elastic members replacing variations in density of the foam.

Par exemple, comme illustré à la figure 6, les plots (3a) présentent à partir de leur base commune un évidement (3c) dans lequel est logé un ressort (5) bi-conique ou à spires méplates et arrondies, réalisé dans un matériau plastique notamment et prenant appui sur la face supérieure (2c) de la plaque de fond ou dans des empreintes en creux (2d) de ladite plaque. For example, as illustrated in FIG. 6, the studs (3a) have, from their common base, a recess (3c) in which is housed a bi-conical spring (5) or with flat and rounded turns, made of a material plastic in particular and bearing on the upper face (2c) of the bottom plate or in recesses (2d) of said plate.

Ces ressorts sont de préférence tarés à différentes valeurs suivant la zone considérée de la surface (3) pour répondre aux besoins.  These springs are preferably tared to different values depending on the area considered on the surface (3) to meet requirements.

Dans une autre variante illustrée à la figure 7, les ressorts sont remplacés par des blocs (6) en mousse structurée de densité différente de celle des plots dans lesquels ils sont logés. In another variant illustrated in FIG. 7, the springs are replaced by blocks (6) of structured foam with a density different from that of the studs in which they are housed.

L'ensemble plaque de fond (2) - surface d'appui (3) est enveloppée dans une housse textile (7) du type drap-housse, avec lacette périphérique pour recouvrir seulement le dessus et les côtés en laissant libre la face inférieure (2a) de la plaque de fond.  The bottom plate (2) - support surface (3) assembly is wrapped in a textile cover (7) of the fitted sheet type, with peripheral lace to cover only the top and the sides, leaving the lower face free ( 2a) of the bottom plate.

Claims (2)

- 1 - Matelas anti-escarrres perfectionné du type comprenant une surface d'appui du corps formée d'une multitude de plots séparés par des espaces de circulation d'air, caractérisé en ce qu'il est constitué d'une plaque de fond (2) en mousse structurée avec une face inférieure (2a) agencée pour faciliter la circulation d'air, d'une surface d'appui du corps (3) unitaire ou composée de modules interchangeables (4) en mousse structurée, présentant une multitude de plots (3a) de section courbe à angle supérieur (3b) arrondi, et d'une housse textile (7) recouvrant l'ensemble plaque de fond (2) et surface d'appui (3) en laissant découverte la face inférieure (2a) de ladite plaque de fond. - 1 - Improved anti-decubitus mattress of the type comprising a body support surface formed of a multitude of studs separated by air circulation spaces, characterized in that it consists of a bottom plate ( 2) in structured foam with a lower face (2a) arranged to facilitate the circulation of air, of a bearing surface of the body (3) unitary or composed of interchangeable modules (4) in structured foam, having a multitude of studs (3a) of curved section with upper rounded angle (3b), and of a textile cover (7) covering the bottom plate (2) and bearing surface (3) assembly, leaving the underside (2a) uncovered ) of said bottom plate. REVENDICATIONS - 3 - Matelas anti-escarres selon la revendication 1, caractérisé en ce que les plots (3a) de la surface d'appui (3) sont de section ovalisée à angle supérieur largement arrondi. - 3 - Anti-decubitus mattress according to claim 1, characterized in that the studs (3a) of the bearing surface (3) are of oval cross-section with a largely rounded upper angle. - 2 - Matelas anti-escarres selon la revendication 1, caractérisé en ce que les plots (3a) de la surface d'appui (3) sont de section circulaire à angle supérieur largement arrondi - 2 - Anti-decubitus mattress according to claim 1, characterized in that the studs (3a) of the bearing surface (3) are of circular section with a largely rounded upper angle - 4 - Matelas anti-escarres selon l'une quelconques des revendications 2 et 3 caractérisé en ce que les plots (3a) sont alignés suivant leur axe. - 4 - Anti-decubitus mattress according to any one of claims 2 and 3 characterized in that the pads (3a) are aligned along their axis. - 5 - Matelas anti-escarres selon l'une quelconque des revendications 2 et 3, caractérisé en ce que les plots (3a) sont disposés en quinconce.  - 5 - Anti-decubitus mattress according to any one of claims 2 and 3, characterized in that the studs (3a) are arranged in staggered rows. - 6 - Matelas anti-escarres selon la revendication 3 et selon l'une quelconque des revendications 4 et 5 caractérisé en ce que les plots (3a) de section ovalisée sont disposés avec leur grand axe parallèles entre eux et/ou perpendiculaires entre eux. - 6 - Anti-decubitus mattress according to claim 3 and according to any one of claims 4 and 5 characterized in that the pads (3a) of ovalized section are arranged with their major axis parallel to each other and / or perpendicular to each other. - 7 - Matelas anti-escarres selon la revendication 1, caractérisé en ce que les plots (3a) présentent à partir de leur base commune un évidement (3c) dans lequel est logé un organe à capacité élastique en appui sur la face supérieure (2c) de la plaque de fond (2). - 7 - Anti-decubitus mattress according to claim 1, characterized in that the studs (3a) have from their common base a recess (3c) in which is housed a member with elastic capacity bearing on the upper face (2c ) from the bottom plate (2). -8- Matelas anti-escarres selon la revendication 7, caractérisé en ce que l'organe à capacité élastique est un ressort (5) bi-conique ou à spires méplates et arrondies, réalisé notamment en matériau plastique et, de préférence, à tarages différents suivant les zones du matelas. -8- Anti-decubitus mattress according to claim 7, characterized in that the member with elastic capacity is a spring (5) bi-conical or with flat and rounded turns, made in particular of plastic material and, preferably, with calibrations different depending on the areas of the mattress. -9- Matelas anti-escarres selon la revendication 7 caractérisé en ce que l'organe à capacité élastique est un bloc (6) en mousse structurée de densité différente de celle des plots dans lesquels ils sont logés.  -9- Anti-decubitus mattress according to claim 7 characterized in that the member with elastic capacity is a block (6) of structured foam with a density different from that of the pads in which they are housed.
FR9715978A 1997-12-11 1997-12-11 PERFECTED ANTI-PRESSURE MATTRESS Expired - Fee Related FR2772261B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9715978A FR2772261B1 (en) 1997-12-11 1997-12-11 PERFECTED ANTI-PRESSURE MATTRESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9715978A FR2772261B1 (en) 1997-12-11 1997-12-11 PERFECTED ANTI-PRESSURE MATTRESS

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FR2772261A1 true FR2772261A1 (en) 1999-06-18
FR2772261B1 FR2772261B1 (en) 2000-03-03

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FR9715978A Expired - Fee Related FR2772261B1 (en) 1997-12-11 1997-12-11 PERFECTED ANTI-PRESSURE MATTRESS

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2114212A2 (en) * 2007-02-16 2009-11-11 Robert H. Graebe Shape matching cushion
US8011043B2 (en) 2007-02-16 2011-09-06 Roho, Inc. Molded seat cushion with internal shape matching ischial structures

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2154455A1 (en) * 1970-11-03 1972-05-10 Mehlman, Rudolph, Prestwich, Manchester (Großbritannien) Cushions for a mattress or a pillow
US3732586A (en) * 1971-08-06 1973-05-15 L Frey Mattress construction
AU3473478A (en) * 1977-09-22 1979-10-11 Mary Swift Adelaide Slitted mattress and base combination
US4194255A (en) * 1977-10-07 1980-03-25 Willy Poppe Foam spring
DE3524236A1 (en) * 1985-07-06 1985-11-07 Gerhard Dr. 8770 Lohr Heinstein Physical, ergotherapeutic, ergokinetic mattress cushion for the intervertebral discs
GB2181048A (en) * 1985-10-04 1987-04-15 Bernard Bedborough Overlay
GB2225229A (en) * 1988-06-15 1990-05-30 Melco Products Limited Mattress assembly
WO1991014387A1 (en) * 1990-03-26 1991-10-03 Nihonkenkozoshinkenkyukai Co., Ltd. Cushion mat
EP0624332A1 (en) * 1993-05-14 1994-11-17 IMHOLD, naamloze vennootschap Elastic springy element and springy supporting element provided with such elastic springy elements.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2154455A1 (en) * 1970-11-03 1972-05-10 Mehlman, Rudolph, Prestwich, Manchester (Großbritannien) Cushions for a mattress or a pillow
US3732586A (en) * 1971-08-06 1973-05-15 L Frey Mattress construction
AU3473478A (en) * 1977-09-22 1979-10-11 Mary Swift Adelaide Slitted mattress and base combination
US4194255A (en) * 1977-10-07 1980-03-25 Willy Poppe Foam spring
DE3524236A1 (en) * 1985-07-06 1985-11-07 Gerhard Dr. 8770 Lohr Heinstein Physical, ergotherapeutic, ergokinetic mattress cushion for the intervertebral discs
GB2181048A (en) * 1985-10-04 1987-04-15 Bernard Bedborough Overlay
GB2225229A (en) * 1988-06-15 1990-05-30 Melco Products Limited Mattress assembly
WO1991014387A1 (en) * 1990-03-26 1991-10-03 Nihonkenkozoshinkenkyukai Co., Ltd. Cushion mat
EP0624332A1 (en) * 1993-05-14 1994-11-17 IMHOLD, naamloze vennootschap Elastic springy element and springy supporting element provided with such elastic springy elements.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2114212A2 (en) * 2007-02-16 2009-11-11 Robert H. Graebe Shape matching cushion
EP2114212A4 (en) * 2007-02-16 2011-06-15 Robert H Graebe Shape matching cushion
US8011043B2 (en) 2007-02-16 2011-09-06 Roho, Inc. Molded seat cushion with internal shape matching ischial structures

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