EP0114762A2 - Matress for therapeutic purposes, especially for preventing pressure sores as a result of a patient being confined to bed for a long period - Google Patents

Matress for therapeutic purposes, especially for preventing pressure sores as a result of a patient being confined to bed for a long period Download PDF

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Publication number
EP0114762A2
EP0114762A2 EP84400060A EP84400060A EP0114762A2 EP 0114762 A2 EP0114762 A2 EP 0114762A2 EP 84400060 A EP84400060 A EP 84400060A EP 84400060 A EP84400060 A EP 84400060A EP 0114762 A2 EP0114762 A2 EP 0114762A2
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EP
European Patent Office
Prior art keywords
mattress
layers
flexible cellular
decubitus
sole
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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
EP84400060A
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German (de)
French (fr)
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EP0114762B1 (en
EP0114762A3 (en
Inventor
Jean-Louis Bernard Viard
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Support Systems International Inc
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Support Systems International Inc
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Priority to AT84400060T priority Critical patent/ATE44229T1/en
Publication of EP0114762A2 publication Critical patent/EP0114762A2/en
Publication of EP0114762A3 publication Critical patent/EP0114762A3/en
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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
    • A47C27/15—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
    • 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
    • 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 essentially relates to a mattress which can be used for therapeutic purposes, in particular to avoid the formation of bedsores during prolonged bed rest of a patient on said mattress.
  • the Applicant therefore posed the new technical problem consisting in finding an anti-decubitus mattress which has the same effectiveness whatever the weight of the patient bedridden on said mattress, and in particular for patients having a weight which can range from 20 to 100 kg.
  • This invention consists of an anti-decubitus mattress of the aforementioned type, characterized in that it consists of at least two superimposed layers or plates of flexible cellular material of resistance to compression different from one another, arranged in such a way that the compressive strength increases from the surface of the contact zone to the sole of the mattress, the contact pads comprising at least in most of their mass at least one of said two layers , so as to have a bearing capacity of the mattress adapted to the weight of the patient.
  • the contact pads comprise in the major part of their mass at least two layers of flexible cellular material of different compressive strength and more preferably at least three or even four layers of flexible cellular material of resistance to different compression.
  • the sole of the mattress is produced in a single layer and the contact zone comprises all the other layers.
  • the compressive strength of each layer is between 3 grams / cm and 200 grams / cm 2 according to the Iso standard DIS DIS 386 establishing the weight necessary to crush a flexible cellular material to 25% of its initial thickness.
  • the flexible cellular material can be the same for each of the layers or be different for each layer if desired.
  • This flexible cellular material is preferably chosen from the group consisting of a polyurethane foam material, a polyethylene foam material, a polyether foam material, latex material known under the trade name Bultex, a polyvinyl chloride foam or foams known under the trade name "HS" or "HR".
  • the most particularly preferred materials are polyurethane or polyether type foam materials.
  • Figure 1 shows an anti-decubitus mattress according to the invention which is described in Example 1 and Figure 2 shows an anti-decubitus mattress object of the invention in Example 2.
  • FIG. 1 represents an anti-decubitus mattress which comprises, in a manner known per se, a contact zone 1 and a base zone forming sole 2.
  • the zone of contact 1 comprises channels 4 for separating the mass of the material into contact pads 6 which are independent of each other.
  • this mattress consists of at least two layers 8, 10, 12 or superimposed plates of flexible cellular material with different compressive strength relative to each other, arranged so that the resistance the compression is increasing from the surface 14 of the contact zone 1 to the sole 2 of the mattress.
  • the studs 6 comprise at least in the major part of their mass at least one (8, 10) of said two layers (8, 10; 12) so as to have a bearing capacity of the mattress adapted to the weight of the patient.
  • the contact pads comprise in most of their mass at least two layers 8, 10 of flexible cellular material of different compressive strength while the sole 2 is produced in a single layer 12.
  • These three layers 8, 10, 12 are for example made of a flexible cellular material of the polyether type, but each of the layers can be made of a flexible cellular material of different nature.
  • the first layer 8 which in practice constitutes the contact layer is made of a foam material of polyether type having a density of 21 kg / m 3 which gives a compressive strength of 3 to 5 g / cm at 25% crushing according to the aforementioned ISO standard, and a thickness of 3 cm.
  • the second layer 10 is made of a foam material of polyether type having a density of 23 kg / m which gives a compressive strength of 11 to 18 g / cm2 at 25% crushing (thickness 6 cm) and the third layer which forms most of the sole 2 is made of a foam material of polyether type having a density equal to 27 kg / m 3 which corresponds to a compressive strength of 22 to 28 g / cm 2 to 25% d crushed according to the aforementioned ISO standard, and has a thickness of 9 cm.
  • channels 4 end substantially at the contact surface between the second layer 10 and the sole 2 but they can also extend slightly in the sole 2 without any particular drawback.
  • the sole 18 is formed by a fifth layer 28 of polyurethane foam having a density of 55 kg / m 3 corresponding to a compressive strength of 55 to 66 g / cm 2 to 25% of crushing, and 6 cm thick.
  • the first, second and third layers will work between around 10 and 60%.
  • this new anti-decubitus mattress structure has the unexpected technical advantage that a patient with a high weight will compress the first and second layers as much as possible, but the lift will be resumed by the third, fourth and fifth layers. which prevents any tailgating phenomenon.
  • a patient of low weight such as a child, makes the first and / or second layer work completely.
  • colors can be used for the various layers of the mattress, these colors being able to be different for each layer.
  • the invention also includes all the means constituting technical equivalents of the means described and their various combinations.
  • Example 1 it is possible to mix different categories of foam to form the various layers of the mattress.
  • the aforementioned multilayer mattress can be poured in a single time in a suitable mold from a machine capable of producing the vertical stacking of the aforementioned layers and which can comprise, for example, a suitable independent multi-stage die, each of which is supplied with a material of specific density or resistance mentioned above, different from that of other materials.
  • the mattress can include any number of layers (n layers).

Abstract

1. Mattress usable for therapeutical purposes, more particularly for preventing the formation of bedsores during a long lying in bed of a patient on the said mattress, based on flexible cellular materials, comprising a base region forming a mattress sole (2) and an upper contact region (1) provided with contact elements (6) independant from each other and separated by slots (4), characterized in that the region provided with contact elements is fastened on the upper surface of the sole (2) and each contact element comprises at least two superimposed layers (8, 10) of flexible cellular materials, the resistance to compression of these two layers and of the sole increasing from the contact surface (14) of the mattress to the said sole.

Description

La présente invention concerne essentiellement un matelas utilisable à des fins thérapeutiques notamment pour éviter la formation d'escarres lors d'un alitement prolongé d'un patient sur ledit matelas.The present invention essentially relates to a mattress which can be used for therapeutic purposes, in particular to avoid the formation of bedsores during prolonged bed rest of a patient on said mattress.

On connait déjà un matelas anti-escarres à base de matériau cellulaire souple comprenant une zone de contact comportant des canaux de séparation de la masse du matériau en plots de contact indépendants les uns des autres ; et une zone de base formant semelle dudit matelas. Ce matelas anti-escarres est commercialisé par la société demanderesse sous la dénomination commerciale "Cliniplot".There is already known an anti-decubitus mattress based on flexible cellular material comprising a contact zone comprising channels for separating the mass of the material into contact pads independent of each other; and a base area forming the sole of said mattress. This anti-decubitus mattress is marketed by the applicant company under the trade name "Cliniplot".

Ces matelas anti-escarres sont très efficaces pour des patients dont le poids est compris entre 70 et 90 kg et le sont moins pour des poids inférieurs.These anti-decubitus mattresses are very effective for patients whose weight is between 70 and 90 kg and are less so for lower weights.

La demanderesse s'est donc posé le nouveau problème technique consistant à trouver un matelas anti-escarres qui ait la même efficacité quel que soit le poids du patient alité sur ledit matelas, et en particulier pour des patients ayant un poids pouvant aller de 20 à 100 kg.The Applicant therefore posed the new technical problem consisting in finding an anti-decubitus mattress which has the same effectiveness whatever the weight of the patient bedridden on said mattress, and in particular for patients having a weight which can range from 20 to 100 kg.

Ce problème est résolu pour la première fois par le présent inventeur.This problem is solved for the first time by the present inventor.

Cette invention consiste en un matelas anti-escarres du type précité, caractérisé en ce qu'il est constitué d'au moins deux couches ou plaques superposées de matériau cellulaire souple de résistance à la compression différente l'une par rapport à l'autre, disposées de telle sorte que la résistance à la compression soit croissante depuis la surface de la zone de contact jusqu'à la semelle du matelas, les plots de contact comportant au moins dans la majeure partie de leur masse au moins l'une desdites deux couches, de manière à avoir une portance du matelas adaptée au poids du patient.This invention consists of an anti-decubitus mattress of the aforementioned type, characterized in that it consists of at least two superimposed layers or plates of flexible cellular material of resistance to compression different from one another, arranged in such a way that the compressive strength increases from the surface of the contact zone to the sole of the mattress, the contact pads comprising at least in most of their mass at least one of said two layers , so as to have a bearing capacity of the mattress adapted to the weight of the patient.

Selon une caractéristique préférée, les plots de contact comportent dans la majeure partie de leur masse au moins deux couches de matériau cellulaire souple de résistance à la compression différente et encore de préférence au moins trois ou même quatre couches de matériau cellulaire souple de résistance à la compression différente.According to a preferred characteristic, the contact pads comprise in the major part of their mass at least two layers of flexible cellular material of different compressive strength and more preferably at least three or even four layers of flexible cellular material of resistance to different compression.

Selon une caractéristique particulière, la semelle du matelas est réalisée en une seule couche et la zone de contact comprend toutes les autres couches.According to a particular characteristic, the sole of the mattress is produced in a single layer and the contact zone comprises all the other layers.

Selon une caractéristique particulièrement avantageuse de l'invention, la résistance à la compression de chaque couche est comprise entre 3 grammes/cm et 200 grammes/cm2 selon la norme Iso Référence DIS 3 386 établissant le poids nécessaire pour écraser un matériau cellulaire souple à 25% de son épaisseur initiale.According to a particularly advantageous characteristic of the invention, the compressive strength of each layer is between 3 grams / cm and 200 grams / cm 2 according to the Iso standard DIS DIS 386 establishing the weight necessary to crush a flexible cellular material to 25% of its initial thickness.

D'autre part, le matériau cellulaire souple peut être le même pour chacune des couches ou être différent pour chaque couche si désiré. Ce matériau cellulaire souple est de préférence choisi parmi le groupe consistant d'un matériau mousse de polyuréthane, d'un matériau mousse de polyéthylène, d'un matériau mousse de polyéther, de latex, du matériau connu sous la dénomination commerciale Bultex, d'une mousse de chlorure de polyvinyle ou des mousses connues sous la dénomination commerciale "HS" ou "HR". Les matériaux les plus particulièrement préférés sont les matériaux mousses de polyuréthane ou de type polyéther.On the other hand, the flexible cellular material can be the same for each of the layers or be different for each layer if desired. This flexible cellular material is preferably chosen from the group consisting of a polyurethane foam material, a polyethylene foam material, a polyether foam material, latex material known under the trade name Bultex, a polyvinyl chloride foam or foams known under the trade name "HS" or "HR". The most particularly preferred materials are polyurethane or polyether type foam materials.

Ainsi, on obtient un matelas unique de portance adaptés au poids, ce qui constitue un progrès technique important et particulièrement inattendu par rapport à la technique antérieure.Thus, a single bearing mattress adapted to the weight is obtained, which constitutes a significant and particularly unexpected technical progress compared to the prior art.

L'invention sera maintenant illustrée en référence à deux exemples non limitatifs de l'invention donnés à titre de simple illustration et qui ne sauraient donc en aucune façon limiter la portée de l'invention.The invention will now be illustrated with reference to two nonlimiting examples of the invention given by way of simple illustration and which therefore cannot in any way limit the scope of the invention.

Ces deux exemples sont illustrés en référence aux figures 1 et 2. La figure 1 représente un matelas anti-escarres conforme à l'invention qui est décrit dans l'exemple 1 et la figure 2 représente un matelas anti-escarres objet de l'invention faisant l'objet de l'exemple 2.These two examples are illustrated with reference to Figures 1 and 2. Figure 1 shows an anti-decubitus mattress according to the invention which is described in Example 1 and Figure 2 shows an anti-decubitus mattress object of the invention in Example 2.

EXEMPLE 1 :EXAMPLE 1:

La figure 1 représente un matelas anti-escarres qui comprend de manière connue en soi une zone de contact1 et une zone de base formant semelle 2. La zone de contact 1 comporte des canaux 4 de séparation de la masse du matériau en plots 6 de contact indépendants les uns des autres.FIG. 1 represents an anti-decubitus mattress which comprises, in a manner known per se, a contact zone 1 and a base zone forming sole 2. The zone of contact 1 comprises channels 4 for separating the mass of the material into contact pads 6 which are independent of each other.

Selon l'invention, ce matelas est constitué d'au moins deux couches 8, 10, 12 ou plaques superposées de matériau cellulaire souple de résistance à la compression différente l'une par rapport à l'autre, disposées de telle sorte que la résistance à la compression soit croissante depuis la surface 14 de la zone de contact 1 jusqu'à la semelle 2 du matelas. D'autre part, les plots 6 comportent au moins dans la majeure partie de leur masse au moins l'une (8, 10) desdites deux couches (8, 10; 12) de manière à avoir une portance du matelas adaptée au poids du patient.According to the invention, this mattress consists of at least two layers 8, 10, 12 or superimposed plates of flexible cellular material with different compressive strength relative to each other, arranged so that the resistance the compression is increasing from the surface 14 of the contact zone 1 to the sole 2 of the mattress. Furthermore, the studs 6 comprise at least in the major part of their mass at least one (8, 10) of said two layers (8, 10; 12) so as to have a bearing capacity of the mattress adapted to the weight of the patient.

Dans l'exemple représenté, les plots de contact comportent dans la majeure partie de leur masse au moins deux couches 8, 10 de matériau cellulaire souple de résistance à la compression différente tandis que la semelle 2 est réalisée en une seule couche 12.In the example shown, the contact pads comprise in most of their mass at least two layers 8, 10 of flexible cellular material of different compressive strength while the sole 2 is produced in a single layer 12.

Ces trois couches 8, 10, 12 sont par exemple réalisées en un matériau cellulaire souple du type polyéther mais chacune des couches peut être réalisée en un matériau cellulaire souple de nature différente.These three layers 8, 10, 12 are for example made of a flexible cellular material of the polyether type, but each of the layers can be made of a flexible cellular material of different nature.

Dans l'exemple représenté, la première couche 8 qui constitue en fait en pratique la couche de contact est réalisée en un matériau mousse de type polyéther ayant une densité de 21 kg/m3 ce qui donne une résistance à la compression de 3 à 5 g/cm à 25% d'écrasement selon la norme ISO précitée, et une épaisseur de 3 cm.In the example shown, the first layer 8 which in practice constitutes the contact layer is made of a foam material of polyether type having a density of 21 kg / m 3 which gives a compressive strength of 3 to 5 g / cm at 25% crushing according to the aforementioned ISO standard, and a thickness of 3 cm.

La deuxième couche 10 est réalisée en un matériau mousse de type polyéther ayant une densité de 23 kg/m ce qui donne une résistance à la compression de 11 à 18 g/cm2 à 25% d'écrasement (épaisseur 6 cm) et la troisième couche qui forme l'essentiel de la semelle 2 est réalisée en un matériau mousse de type polyéther ayant une densité égale à 27 kg/m3 ce qui correspond à une résistance à la compression de 22 à 28 g/cm2 à 25% d'écrasement selon la norme ISO précitée, et a une épaisseur de 9 cm.The second layer 10 is made of a foam material of polyether type having a density of 23 kg / m which gives a compressive strength of 11 to 18 g / cm2 at 25% crushing (thickness 6 cm) and the third layer which forms most of the sole 2 is made of a foam material of polyether type having a density equal to 27 kg / m 3 which corresponds to a compressive strength of 22 to 28 g / cm 2 to 25% d crushed according to the aforementioned ISO standard, and has a thickness of 9 cm.

On peut observer en outre en référence à la figure 1 que les canaux 4 se terminent sensiblement à la surface de contact entre la deuxième couche 10 et la semelle 2 mais ils peuvent également se prolonger légèrement dans la semelle 2 sans inconvénient particulier.It can also be observed with reference to FIG. 1 that the channels 4 end substantially at the contact surface between the second layer 10 and the sole 2 but they can also extend slightly in the sole 2 without any particular drawback.

Un tel matelas est fabriqué de la manière suivante :

  • Les couches 8, 10 et 12 peuvent être liées entre elles de préférence par collage et ensuite le matelas multicouche ainsi formé est soumis à une découpe appropriée pour réaliser les canaux 4 de manière à définir les plots indépendants 6. La forme des plots indépendants 6 peut être quelconque pourvu que les plots 6 conservent leur indépendance. Dans l'exemple représenté ces plots ont de préférence une forme pyramidale tronquée qui procure un aspect esthétique particulièrement agréable à l'oeil.
Such a mattress is manufactured in the following manner:
  • The layers 8, 10 and 12 can preferably be bonded to each other by bonding and then the multilayer mattress thus formed is subjected to an appropriate cut to make the channels 4 so as to define the independent pads 6. The shape of the independent pads 6 can be arbitrary provided that the studs 6 retain their independence. In the example shown, these studs preferably have a truncated pyramidal shape which gives an aesthetic appearance which is particularly pleasing to the eye.

On observera que un tel matelas à trois couches pourrait être obtenu directement par un moulage approprié réalisant directement la succession de couches précitée avec les canaux 4.It will be observed that such a three-layer mattress could be obtained directly by an appropriate molding directly producing the above-mentioned succession of layers with the channels 4.

Actuellement, on préfère réunir par collage plusieurs couches ou plaques de matériau cellulaire souple qui sont ensuite soumises à un découpage approprié qui permet non seulement de réaliser les canaux 4 mais également d'adapter les dimensions du matelas à la demande.Currently, it is preferable to join by bonding several layers or plates of flexible cellular material which are then subjected to an appropriate cutting which not only makes it possible to produce the channels 4 but also to adapt the dimensions of the mattress to the request.

EXEMPLE 2 :EXAMPLE 2:

Dans cet exemple, en référence à la figure 2, le matelas est réalisé par la superposition de cinq couches de résistance à la compression différente qui sont successivement les suivantes depuis la surface de contact 16 à la semelle 18 :

  • Une première couche 20 réalisée en un matériau cellulaire souple formé par une mousse de polyuréthane ayant une densité de 30 kg/m3 correspondant à une résistance à la compression de 10 à 14 g/cm2 à 25% d'écrasement. Son épaisseur est de 2 cm.
  • Une deuxième couche 22 également en mousse de polyuréthane ayant une densité de 32 kg/m3 correspondant à une résistance à la compression de 14 à 18 g/cm2 à 25% d'écrasement, et de 2 cm d'épaisseur.
  • Une troisième couche 24 en mousse de polyuréthane ayant une densité de 35 kg/m correspondant à une résistance à la compression de 16 à 21 grammes par cm2 à 25% d'écrasement, et son épaisseur est de 2 cm.
  • Une quatrième couche 26 également en mousse de polyuréthane ayant une densité de 37 kg/cm3 correspondant à une résistance à la compression de 22 à 28 grammes par cm2 à 25% d'écrasement, et une épaisseur égale à 6 cm.
In this example, with reference to FIG. 2, the mattress is produced by the superposition of five layers of different compressive strength which are successively the following from the contact surface 16 to the sole 18:
  • A first layer 20 made of a flexible cellular material formed by a polyurethane foam having a density of 30 kg / m 3 corresponding to a compressive strength of 10 to 14 g / cm 2 to 25% of crushing. Its thickness is 2 cm.
  • A second layer 22 also made of polyurethane foam having a density of 32 kg / m 3 corresponding to a compressive strength of 14 to 18 g / cm 2 to 25% crushing, and 2 cm thick.
  • A third layer 24 of polyurethane foam having a density of 35 kg / m corresponding to a compressive strength of 16 to 21 grams per cm 2 to 25% of crushing, and its thickness is 2 cm.
  • A fourth layer 26 also made of polyurethane foam having a density of 37 kg / cm 3 corresponding to a compressive strength of 22 to 28 grams per cm 2 to 25% of crushing, and a thickness equal to 6 cm.

Ces quatre couches forment la majeure partie du plot 32 défini par les canaux 30 de séparation analogues aux canaux 4 de la figure 1.These four layers form the major part of the pad 32 defined by the separation channels 30 analogous to the channels 4 of FIG. 1.

Enfin, la semelle 18 est formée par une cinquième couche 28 en mousse de polyuréthane ayant une densité de 55 kg/m3 correspondant à une résistance à la compression de 55 à 66 g/cm2 à 25% d'écrasement, et 6 cm d'épaisseur.Finally, the sole 18 is formed by a fifth layer 28 of polyurethane foam having a density of 55 kg / m 3 corresponding to a compressive strength of 55 to 66 g / cm 2 to 25% of crushing, and 6 cm thick.

Ainsi, dans le cas d'un patient ayant un poids compris entre 20 et 25 kilogrammes, seules les première et deuxième voire troisième couches vont travailler en écrasement entre 10 et 60% environ.Thus, in the case of a patient with a weight between 20 and 25 kilograms, only the first and second or even third layers will work in crushing between 10 and 60% approximately.

Pour un poids moyen, d'environ 50 kilogrammes, les première, deuxième, troisième couches vont travailler entre 10 et 60% environ.For an average weight of around 50 kilograms, the first, second and third layers will work between around 10 and 60%.

Enfin, pour un poids important d'environ 100 kilogrammes, les cinq couches font travailler dans une même valeur de 10 à 60% d'écrasement.Finally, for a significant weight of around 100 kilograms, the five layers work in the same value of 10 to 60% of crushing.

On peut constater ainsi que cette nouvelle structure de matelas anti-escarres présente l'avantage technique inattendu qu'un patient ayant un poids élevé va comprimer au maximum les première et deuxième couches mais la sustentation va être reprise par les troisième, quatrième et cinquième couches ce qui empêche tout phénomène de talonnement.We can see that this new anti-decubitus mattress structure has the unexpected technical advantage that a patient with a high weight will compress the first and second layers as much as possible, but the lift will be resumed by the third, fourth and fifth layers. which prevents any tailgating phenomenon.

D'autre part, un patient d'un faible poids, comme par exemple un enfant, fait travailler intégralement la première et/ou la deuxième couche.On the other hand, a patient of low weight, such as a child, makes the first and / or second layer work completely.

On obtient donc un matelas d'une portance adaptée au au poids du patient tout en bénéficiant des avantages particuliers procurés par la présence de plots de portance indépendants les uns des autres, en vue d'obtenir l'effet anti-escarres primitivement recherché.We therefore obtain a mattress with a lift adapted to to the patient's weight while benefiting from the particular advantages provided by the presence of lift pads independent of each other, in order to obtain the anti-decubitus effect originally sought.

Pour améliorer sa présentation, on peut utiliser des couleurs pour les diverses couches du matelas, ces couleurs pouvant être différentes pour chaque couche.To improve its presentation, colors can be used for the various layers of the mattress, these colors being able to be different for each layer.

L'invention comprend d'autre part tous les moyens constituant des équivalents techniques des moyens décrits ainsi que leurs diverses combinaisons. Ainsi, comme cela a été dit en particulier à l'exemple 1, on peut mélanger différentes catégories de mousse pour constituer les diverses couches du matelas.The invention also includes all the means constituting technical equivalents of the means described and their various combinations. Thus, as was said in particular in Example 1, it is possible to mix different categories of foam to form the various layers of the mattress.

En particulier, on peut utiliser une mousse de moins bonne qualité pour la semelle 2 sans préjudicier aux caractéristiques du matelas.In particular, it is possible to use a lower quality foam for the sole 2 without damaging the characteristics of the mattress.

De même, le matelas multicouche précité peut être coulé en une seule fois dans un moule approprié à partir d'une machine capable de réaliser l'empilement vertical de couches précité et qui peut comprendre par exemple une filière appropriée multi-étages indépendants dont chacun est alimenté en un matériau de densité ou résistance précitée propre, différente de celle des autres matériaux. Enfin le matelas peut comporter un nombre quelconque de couches ( n couches).Likewise, the aforementioned multilayer mattress can be poured in a single time in a suitable mold from a machine capable of producing the vertical stacking of the aforementioned layers and which can comprise, for example, a suitable independent multi-stage die, each of which is supplied with a material of specific density or resistance mentioned above, different from that of other materials. Finally, the mattress can include any number of layers (n layers).

Claims (9)

1. Matelas utilisable à des fins thérapeutiques notamment pour éviter la formation d'escarres lors d'un alitement prolongé d'un patient sur ledit matelas, à base de matériau cellulaire souple, comprenant une zone de contact (1) comportant des canaux (4) de séparation de la masse du matériau en plots (6) de contact indépendants les uns des autres; et une zone de base formant semelle (2) dudit matelas; caractérisé en ce que ledit matelas est constitué d'au moins deux couches (8, 10, 12) superposées de matériau cellulaire souple de résistance à la compression différente l'une par rapport à l'autre, disposées de telle sorte que la résistance à la compression soit croissante depuis la surface (14) de la zone de contact (1) jusqu'à la semelle (2) du matelas, lesdits plots (6) de contact comportant au moins dans la majeure partie de leur masse au moins l'une (8, 10) desdites deux couches (8, 10; 12), de manière à avoir une portance du matelas adaptée au poids du patient.1. Mattress usable for therapeutic purposes in particular to avoid the formation of bedsores during prolonged bed rest of a patient on said mattress, based on flexible cellular material, comprising a contact area (1) comprising channels (4 ) separating the mass of the material into contact pads (6) independent of each other; and a base area forming a sole (2) of said mattress; characterized in that said mattress consists of at least two layers (8, 10, 12) superimposed on flexible cellular material of different compressive strength with respect to each other, arranged so that the resistance to the compression is increasing from the surface (14) of the contact zone (1) to the sole (2) of the mattress, said contact pads (6) comprising at least in most of their mass at least the one (8, 10) of said two layers (8, 10; 12), so as to have a bearing capacity of the mattress adapted to the weight of the patient. 2. Matelas anti-escarres selon la revendication 1, caractérisé en ce que les plots (6) de contact comportent dans la majeure partie de leur masse au moins deux couches (8, 10) de matériau cellulaire souple de résistance à la compression différente.2. Anti-decubitus mattress according to claim 1, characterized in that the contact pads (6) comprise in most of their mass at least two layers (8, 10) of flexible cellular material of different compressive strength. 3. Matelas anti-escarres selon la revendication 1 ou 2, caractérisé en ce que la semelle du matelas est réalisée en une seule couche (12) et la zone de contact comprend toutes les autres couches (8, 10).3. Anti-decubitus mattress according to claim 1 or 2, characterized in that the sole of the mattress is made in a single layer (12) and the contact zone comprises all the other layers (8, 10). 4. Matelas anti-escarres selon l'une quelconque des revendications précédentes, caractérisé en ce que la résistance à la compression de chaque couche (8, 10, 12; 20, 22, 24, 26, 28) est comprise entre 3 g/cm2 et 200 g/cm2 selon la norme ISO référence DIS 3386 établissant le poids nécessaire pour écraser le matériau cellulaire souple à 25% de son épaisseur initiale.4. Anti-decubitus mattress according to any one of the preceding claims, characterized in that the compressive strength of each layer (8, 10, 12; 20, 22, 24, 26, 28) is between 3 g / cm 2 and 200 g / cm 2 according to ISO standard reference DIS 3386 establishing the weight necessary to crush the flexible cellular material to 25% of its initial thickness. 5. Matelas anti-escarres selon l'une quelconque des revendications précédentes, caractérisé en ce que les couches sont réunies par collage et les canaux (4; 30) de séparation sont réalisés ultérieurement par découpe dans la surface vierge de la couche de résistance à la compression la plus faible.5. Anti-decubitus mattress according to any one of the preceding claims, characterized in that the layers are joined by gluing and the separation channels (4; 30) are produced subsequently by cutting from the blank surface of the resistance layer to the lowest compression. 6. Matelas anti-escarres selon l'une quelconque des revendications précédentes, caractérisé en ce que le matériau souple cellulaire est choisi parmi le groupe comprenant un matériau mousse de polyuréthane, un matériau mousse de polyéthylène; un matériau mousse de chlorure de polyvinyle; un matériau mousse de type polyéther ; un matériau mousse connu sous la dénomination commerciale HS ou HR ou encore Bultex, ou un latex.6. Anti-decubitus mattress according to any one of the preceding claims, characterized in that the flexible cellular material is chosen from the group comprising a polyurethane foam material, a polyethylene foam material; a polyvinyl chloride foam material; a polyether-type foam material; a foam material known under the trade name HS or HR or also Bultex, or a latex. 7. Matelas anti-escarres selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend cinq couches superposées de matériau cellulaire souple (20, 22, 24, 26, 28) dont quatre couches (20, 22, 24, 26) pour les plots (32) précités.7. Anti-decubitus mattress according to any one of the preceding claims, characterized in that it comprises five superimposed layers of flexible cellular material (20, 22, 24, 26, 28) including four layers (20, 22, 24, 26) for the aforementioned studs (32). 8. Matelas anti-escarres selon l'une quelconque des revendications précédentes, caractérisé en ce que le matériau cellulaire souple est le même pour chacune des couches et de préférence choisi parmi une mousse de polyuréthane ou une mousse de type polyéther.8. Anti-decubitus mattress according to any one of the preceding claims, characterized in that the flexible cellular material is the same for each of the layers and preferably chosen from a polyurethane foam or a polyether type foam. 9. Matelas anti-escarres selon l'une quelconque des revendications précédentes, caractérisé en ce que les plots précités (6 ; 32) ont une forme pyramidale tronquée.9. Anti-decubitus mattress according to any one of the preceding claims, characterized in that the aforementioned studs (6; 32) have a truncated pyramidal shape.
EP84400060A 1983-01-19 1984-01-12 Matress for therapeutic purposes, especially for preventing pressure sores as a result of a patient being confined to bed for a long period Expired EP0114762B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84400060T ATE44229T1 (en) 1983-01-19 1984-01-12 MATTRESS USED FOR THERAPEUTIC PURPOSES, IN PARTICULAR TO PREVENT PRESSURE CUBITUS RESULTING FROM A PATIENT'S LONG REST IN BED.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8300790 1983-01-19
FR838300790A FR2539297B1 (en) 1983-01-19 1983-01-19 MATTRESS USEFUL FOR THERAPEUTIC PURPOSES, PARTICULARLY TO AVOID THE FORMATION OF SQUARES DURING LONG-TERM BEDING OF A PATIENT

Publications (3)

Publication Number Publication Date
EP0114762A2 true EP0114762A2 (en) 1984-08-01
EP0114762A3 EP0114762A3 (en) 1984-08-22
EP0114762B1 EP0114762B1 (en) 1989-06-28

Family

ID=9285083

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400060A Expired EP0114762B1 (en) 1983-01-19 1984-01-12 Matress for therapeutic purposes, especially for preventing pressure sores as a result of a patient being confined to bed for a long period

Country Status (5)

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EP (1) EP0114762B1 (en)
AT (1) ATE44229T1 (en)
DE (1) DE3478786D1 (en)
ES (1) ES276961Y (en)
FR (1) FR2539297B1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124044A1 (en) * 1991-07-19 1993-01-21 Klaus Prof Dr Heckmann Mattress with elastic core and upholstered top layer - has a segmented top transverse part separated horizontally by cavities, with connecting bridges
WO1993006809A1 (en) * 1991-10-11 1993-04-15 Georges Roux Anti-eschar mattress
WO1995007679A2 (en) * 1993-09-13 1995-03-23 Woodbridge Foam Corporation Pressure relief foam mattress
EP0666158A1 (en) * 1994-02-04 1995-08-09 Askle Process and apparatus for manufacturing cushions or mattresses of soft cellulaire material
US5539942A (en) * 1993-12-17 1996-07-30 Melou; Yves Continuous airflow patient support with automatic pressure adjustment
FR2740139A1 (en) * 1995-10-24 1997-04-25 Ronvel Jean Louis Foamed gels of synthetic polymers
GB2309896A (en) * 1996-02-09 1997-08-13 Recticel Ltd Mattress
FR2752847A1 (en) * 1995-10-24 1998-03-06 Jean Pierre Archeny Solid synthetic foam used in medical and industrial areas
EP2095745A1 (en) * 2008-02-26 2009-09-02 Technogel Italia S.R.L. Modular supporting element to make mattresses and the like
EP3355845A4 (en) * 2015-09-30 2019-05-22 Roger Thomas Mascull An overlay

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015067974A1 (en) 2013-11-05 2015-05-14 Dóczi András Péter Mattress insert xxx

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2087528A5 (en) * 1970-05-22 1971-12-31 Cherpin Jean Polyurethane foam block bed - for bedridden patients
DE2235818A1 (en) * 1972-07-21 1974-01-31 Steffen Monika MULTI-LAYER UPHOLSTERED BODY
FR2220238A1 (en) * 1973-03-09 1974-10-04 Pastore Gaetan Anti-bedsore mattress for medical use - has assembly of flexible cellular sections of varying elasticity
FR2324260A1 (en) * 1975-09-22 1977-04-15 Hargest Thomas Mattress with variable pressure insert - has cavity in one supporting surfaces accommodating disposable insert
EP0046008A1 (en) * 1980-08-13 1982-02-17 PAUL, Patrick Robin David Mattress

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2087528A5 (en) * 1970-05-22 1971-12-31 Cherpin Jean Polyurethane foam block bed - for bedridden patients
DE2235818A1 (en) * 1972-07-21 1974-01-31 Steffen Monika MULTI-LAYER UPHOLSTERED BODY
FR2220238A1 (en) * 1973-03-09 1974-10-04 Pastore Gaetan Anti-bedsore mattress for medical use - has assembly of flexible cellular sections of varying elasticity
FR2324260A1 (en) * 1975-09-22 1977-04-15 Hargest Thomas Mattress with variable pressure insert - has cavity in one supporting surfaces accommodating disposable insert
EP0046008A1 (en) * 1980-08-13 1982-02-17 PAUL, Patrick Robin David Mattress

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4124044A1 (en) * 1991-07-19 1993-01-21 Klaus Prof Dr Heckmann Mattress with elastic core and upholstered top layer - has a segmented top transverse part separated horizontally by cavities, with connecting bridges
DE4124044C2 (en) * 1991-07-19 1998-06-04 Klaus Prof Dr Heckmann mattress
WO1993006809A1 (en) * 1991-10-11 1993-04-15 Georges Roux Anti-eschar mattress
FR2682292A1 (en) * 1991-10-11 1993-04-16 Roux Georges ANTI-PRESSURE MATTRESS.
WO1995007679A3 (en) * 1993-09-13 1995-06-08 Woodbridge Foam Corp Pressure relief foam mattress
WO1995007679A2 (en) * 1993-09-13 1995-03-23 Woodbridge Foam Corporation Pressure relief foam mattress
US5539942A (en) * 1993-12-17 1996-07-30 Melou; Yves Continuous airflow patient support with automatic pressure adjustment
EP0666158A1 (en) * 1994-02-04 1995-08-09 Askle Process and apparatus for manufacturing cushions or mattresses of soft cellulaire material
FR2715886A1 (en) * 1994-02-04 1995-08-11 Askle Method and device for manufacturing elements of cushions or mattresses in flexible cellular material.
US5633017A (en) * 1994-02-04 1997-05-27 Askle Device for manufacturing cushion or mattress elements in supple cellular material
FR2740139A1 (en) * 1995-10-24 1997-04-25 Ronvel Jean Louis Foamed gels of synthetic polymers
FR2752847A1 (en) * 1995-10-24 1998-03-06 Jean Pierre Archeny Solid synthetic foam used in medical and industrial areas
GB2309896A (en) * 1996-02-09 1997-08-13 Recticel Ltd Mattress
GB2309896B (en) * 1996-02-09 1999-12-22 Recticel Ltd Pressure reducing mattress
EP2095745A1 (en) * 2008-02-26 2009-09-02 Technogel Italia S.R.L. Modular supporting element to make mattresses and the like
EP3355845A4 (en) * 2015-09-30 2019-05-22 Roger Thomas Mascull An overlay
US10881218B2 (en) 2015-09-30 2021-01-05 Roger Thomas Mascull and Elizabeth Jocelyn Mascuall Overlay cushion with removable contouring members

Also Published As

Publication number Publication date
FR2539297A1 (en) 1984-07-20
EP0114762B1 (en) 1989-06-28
ES276961Y (en) 1985-08-01
EP0114762A3 (en) 1984-08-22
ATE44229T1 (en) 1989-07-15
DE3478786D1 (en) 1989-08-03
FR2539297B1 (en) 1985-07-26
ES276961U (en) 1984-06-16

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