EP1716835A1 - Anti-bottoming device for a flexible support - Google Patents

Anti-bottoming device for a flexible support Download PDF

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Publication number
EP1716835A1
EP1716835A1 EP05300363A EP05300363A EP1716835A1 EP 1716835 A1 EP1716835 A1 EP 1716835A1 EP 05300363 A EP05300363 A EP 05300363A EP 05300363 A EP05300363 A EP 05300363A EP 1716835 A1 EP1716835 A1 EP 1716835A1
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EP
European Patent Office
Prior art keywords
signal
support
wall
heeling
distance
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Withdrawn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
EP05300363A
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German (de)
French (fr)
Inventor
Pierre Geay
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.)
Winncare International SAS
Original Assignee
Winncare International SAS
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Filing date
Publication date
Application filed by Winncare International SAS filed Critical Winncare International SAS
Priority to EP05300363A priority Critical patent/EP1716835A1/en
Publication of EP1716835A1 publication Critical patent/EP1716835A1/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05769—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers
    • A61G7/05776—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers with at least two groups of alternately inflated chambers
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/1043—Cushions specially adapted for wheelchairs
    • A61G5/1045—Cushions specially adapted for wheelchairs for the seat portion
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/34—General characteristics of devices characterised by sensor means for pressure
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/40—General characteristics of devices characterised by sensor means for distance

Definitions

  • the subject of the present invention is an anti-heeling device of a flexible support such as a cushion, mattress or the like, and more particularly a device making it possible to anticipate a risk of being tied up.
  • Such a device is particularly intended to equip the flexible supports, foam or inflatable for receiving the body of patients, such as for example a cushion or a mattress for the prevention and treatment of bedsores, used and designed to prevent the risk of bottleneck, that is to say the risk of contact of the body of said patient with the hardest part of the support or the base on which said support.
  • body mass is distributed differently.
  • the optimal inflation pressure may be different.
  • the object of the present invention is to remedy the various aforementioned drawbacks by proposing an anti-heeling device of a flexible support such as a cushion, mattress or the like, and more particularly a device, making it possible to anticipate a risk of tailwindness. a very high reliability while being simple design and easy to use and, for inflatable media, free from the control of the inflation pressure.
  • the anti-heeling device of a flexible support such as a cushion, mattress or the like, comprising an upper side and a lower side
  • a flexible support such as a cushion, mattress or the like, comprising an upper side and a lower side
  • the anti-heeling device of a flexible support is essentially characterized in that it comprises, internally, at least provided means adapted to allow the evaluation of the distance separating said upper and lower sides, associated with means capable of delivering a signal when said distance reaches a threshold value.
  • the flexible support is intended to be placed, by its lower side, on a rigid structure or not, a bed base or the like for example, and to receive, on its upper side, an object or a body to support.
  • a depression of the flexible support at a point as in several, according to a predetermined depth, there is emission of a signal to inform that it is necessary to rectify the inflation pressure.
  • the predetermined depth corresponds to the limit threshold of bottleneck. It can also correspond to a value greater than the limit of bottleneck so as to allow to anticipate the bottleneck, and thus not reach it.
  • the device is associated with signal processing means, themselves able to emit an alert signal.
  • the device comprises several means each provided capable of allowing the evaluation of the distance separating the upper and lower sides, and each disposed in a predetermined location, each of said means being able to deliver a separate signal.
  • the means provided capable of allowing the evaluation of the distance separating the upper and lower sides consists of a means capable of carrying out a measurement, associated with means for processing the measurement done.
  • the means able to carry out a measurement consists of transmitter and receiver means arranged in right of each other, one at the level of the upper side and the other at the level of the on the lower side.
  • the means provided capable of enabling the evaluation of the distance separating the upper and lower sides consists of at least one deformable element capable of contributing to the delivery of the signal from a certain level of deformation related to the approximation of said sides.
  • the support is an inflatable support having at least one envelope comprising an upper wall, possibly honeycombed, and a lower wall
  • the deformable element incorporates at least two remote conductive elements, adapted to come into contact with each other under the direct effect of bringing said two upper and lower walls together, so as to close a circuit and to emit a signal.
  • the support is an inflatable support comprising at least one envelope comprising an upper wall, possibly honeycombed, and a lower wall, and in that the deformable element is made of an electrically conductive material, able to be deformed under the effect of the approximation of the upper and lower walls, until a deformation can close the circuit.
  • this other variant of the device comprises a printed circuit connected to an electrical connection and comprising at least two distant terminals, the latter being intended to cooperate with a deformable element made of electrically conductive material separated from said terminals by a hollow intermediate element, made of electrically insulating material, said deformable element being able to be forced into said intermediate element under the displacement of the upper wall, in the direction of the lower wall , and to establish a connection between said terminals from a certain level of displacement.
  • the support is an inflatable support comprising at least one envelope comprising an upper wall, possibly honeycombed, and a lower wall, and in that the deformable element consists in an inflated element, of a relative thickness at a threshold distance separating the two upper and lower walls, associated with a means capable of measuring the internal pressure and which cooperates with a comparator means for transmitting the signal when it records a significant pressure variation of a crushing of said inflated element.
  • the signal is a pneumatic, electromagnetic or mechanical signal.
  • the signal is an electrical signal.
  • the electrical signal is conveyed through a printed circuit incorporated in the flexible support.
  • the device according to the invention makes it possible, for the inflatable support, to be completely free of any measurement of the inflation pressure, which need not be measured, even when of the inflation phase. Indeed, during this inflation phase can be carried out by blowing air into the inflatable element until there is no more signal announcing a risk of bottleneck.
  • the inflatable support can also, and preferably, over-inflate the inflatable support, deflate until a signal is triggered, and then inflate the amount of air just needed.
  • the device according to the invention can, according to the embodiment considered, be integrated into a cover for wrapping a flexible support not comprising such a device.
  • an anti-heeling device for an inflatable support 1 where this inflatable support 1 comprises a bottom wall or mattress 2 and an upper wall 3, the latter consisting, known per se and not limited to a juxtaposition of cavities 30.
  • the support is not limited to a honeycomb structure as shown, it may have other shapes, such as a succession of strands for example.
  • the pad 2 has on its face 20, internal to the inflatable support 1, a printed circuit 21, also visible in Figure 2, and which comprises a succession of pairs 22 of distant electrodes 23 and 24, which may consist, for example , in labels screen printed with a conductive ink.
  • the printed circuit 21, and more precisely the pairs 22 of electrodes 23 and 24, are arranged at the right of particular cells, which correspond to the locations likely to heel first.
  • a grid 4 made of an electrically insulating material, and which comprises elements 40 each ring-shaped or the like, having a central recess 41 intended to come to the right a pair 22 of distant electrodes 23 and 24, as is apparent from FIG.
  • the printed circuit 21 is an integral part of the gate 4.
  • each element 40 is surmounted by a button 5, which is made of a flexible foam and electrically conductive, or a foam associated with a conductive element such as a pellet for example.
  • a depressing threshold is defined from which the electrical circuit is closed, with the result that a signal is emitted, which can be treated to, for example, trigger an alarm, or automatic inflation.
  • this embodiment has the advantage of being able to make contact without creating a hard spot on the body of the patient.
  • the printed circuit 21 may be more or less complex, that is to say, for example, provided capable of identifying the location of the contact (s), thus allowing the location of areas that present a risk.
  • FIG. 5 we can see another embodiment of the device according to the invention.
  • an inflatable support 1 a bottom wall or mattress 2 and an upper wall 3 consisting of a juxtaposition of cells 30, of which in this case only one is shown.
  • the bottom wall or mattress 2 has a deformable portion 25 which has a profile for superposing, at a distance from one another, two electrodes 26 and 27, so that the depression of the cell 30, beyond a certain threshold, causes the deformation of the portion 25 to bring into contact the two electrodes 26 and 27.
  • this embodiment can be applied to a support other than inflatable, flexible foam for example, wherein are provided means, such as a cavity for example, to allow the entry or not in contact with the two electrodes.
  • FIG. 6 we can see another embodiment of the device according to the invention, wherein is disposed in line with a cell 30, a cell 6 inflated to a certain pressure and extending over a certain height between the bottom wall or mattress 2, and the upper wall 3.
  • the upper wall 3 compresses the cell 6, and by measuring the internal pressure of the latter can be detected a risk of bottleneck.
  • the cell 6 can be secured to both the bottom wall 2 and the top wall 3, but also be completely free.
  • the transmitted signal may be both an electrical source signal, a pneumatic origin signal.
  • the transmitter means 28 and receiver 31 are able to measure, precisely if necessary, the distance between them, so that when this distance passes below a certain value, a signal can be emitted.
  • This embodiment can also be used to equip flexible foam supports, the transmitter and receiver means being located internally, below the surface of the upper side and under the surface of the lower side.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nursing (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

The device has an upper wall (3), and lower wall (2), where the lower wall includes a printed circuit board on its face. A grid is interposed between the walls and includes ring shaped units (40), where each unit is surmounted by a button (5). The lower wall is provided with emitting unit and the upper wall is provided with a receiving unit, where the emitting and receiving units measure the distance that separates the upper and lower walls to emit a signal when distance reaches a threshold value.

Description

La présente invention a pour objet un dispositif anti-talonnement d'un support souple tel qu'un coussin, matelas ou analogue, et plus particulièrement un dispositif permettant d'anticiper un risque de talonnement.The subject of the present invention is an anti-heeling device of a flexible support such as a cushion, mattress or the like, and more particularly a device making it possible to anticipate a risk of being tied up.

Un tel dispositif est notamment destiné à équiper les supports souples, en mousse ou gonflables destinés à recevoir le corps de patients, tels que par exemple un coussin ou un matelas pour la prévention et le traitement des escarres, utilisé et conçu en vue d'empêcher les risques de talonnement, c'est-à-dire les risques de contact du corps dudit patient avec la partie la plus dure du support ou la base sur laquelle repose ledit support.Such a device is particularly intended to equip the flexible supports, foam or inflatable for receiving the body of patients, such as for example a cushion or a mattress for the prevention and treatment of bedsores, used and designed to prevent the risk of bottleneck, that is to say the risk of contact of the body of said patient with the hardest part of the support or the base on which said support.

On sait que les personnes contraintes pour des raisons médicales ou physiques de rester une longue période dans une certaine position, assise ou alitée par exemple, sont susceptibles de développer des nécroses de la peau en des points particuliers du corps au niveau desquels le corps prend appui et où la circulation sanguine est réduite voire interrompue.It is known that persons who are forced for medical or physical reasons to stay for a long time in a certain position, sitting or bedridden for example, are likely to develop necrosis of the skin at particular points in the body at which the body is supported. and where the blood circulation is reduced or interrupted.

Pour pallier ces inconvénients on sait qu'il faut élargir la surface de contact du corps du patient avec le support ce qui peut être obtenu avec notamment des supports gonflables, tels que des matelas ou analogues, présentant une pression de gonflage adéquate.To overcome these drawbacks it is known that it is necessary to enlarge the contact surface of the body of the patient with the support which can be obtained with particular inflatable supports, such as mattresses or the like, having an adequate inflation pressure.

Pour des supports gonflables, du fait de la morphologie différente des patients ainsi que de l'inégalité de la répartition de leur masse, il est nécessaire d'approprier la pression de gonflage selon les caractéristiques de l'utilisateur, en sorte d'une part, que la pression ne soit pas trop élevée pour atteindre une surface de contact, entre le corps et le support, la plus grande possible, et d'autre part que l'enfoncement ne dépasse pas un certain seuil au-delà duquel il y a risque de talonnement, c'est-à-dire risque de création d'une zone de contact avec la structure portant le support gonflable.For inflatable supports, because of the different morphology of the patients as well as the inequality of the distribution of their mass, it is necessary to appropriate the inflation pressure according to the characteristics of the user, so on the one hand that the pressure is not too high to reach a contact area, between the body and the support, the greatest possible, and secondly that the depression does not exceed a certain threshold beyond which there is a risk of bottleneck, that is to say risk of creating a contact zone with the structure carrying the inflatable support.

Pour remédier à cet inconvénient, il est connu d'adapter la pression et de vérifier le niveau d'enfoncement en glissant une main entre le support gonflable et le corps, technique qui demeure aléatoire et évidemment dérangeante pour le patient.To overcome this disadvantage, it is known to adapt the pressure and check the level of depression by sliding a hand between the inflatable support and the body, a technique that remains random and obviously disturbing for the patient.

Pour tenter de pallier cet inconvénient il a été proposé d'équiper les supports gonflables de manomètres permettant de faire correspondre la pression de gonflage à la morphologie de l'utilisateur et plus exactement au poids et à la taille de celui-ci en utilisant des tableaux ou analogues établissant des correspondances.In an attempt to overcome this drawback, it has been proposed to equip the inflatable supports with manometers making it possible to match the inflation pressure to the morphology of the user and more exactly to the weight and the size of the latter by using tables. or analogous connecting.

Cependant, la masse corporelle est répartie différemment. Ainsi pour un même poids et une même taille, la pression de gonflage optimale peut être différente.However, body mass is distributed differently. Thus for the same weight and the same size, the optimal inflation pressure may be different.

De plus, ce n'est pas en augmentant la pression de gonflage qu'il est possible de prévenir un risque de talonnement.In addition, it is not by increasing the inflation pressure that it is possible to prevent a risk of tailgating.

La présente invention a pour but de remédier aux divers inconvénients précités en proposant un dispositif anti-talonnement d'un support souple tel qu'un coussin, matelas ou analogue, et plus particulièrement un dispositif, permettant d'anticiper un risque de talonnement d'une très grande fiabilité tout en étant de conception simple et d'utilisation aisée et, pour les supports gonflables, s'affranchissant du contrôle de la pression de gonflage.The object of the present invention is to remedy the various aforementioned drawbacks by proposing an anti-heeling device of a flexible support such as a cushion, mattress or the like, and more particularly a device, making it possible to anticipate a risk of tailwindness. a very high reliability while being simple design and easy to use and, for inflatable media, free from the control of the inflation pressure.

Selon l'invention, le dispositif anti-talonnement d'un support souple tel qu'un coussin, matelas ou analogue, comprenant un côté supérieur et un côté inférieur, se caractérise essentiellement en ce qu'il comporte, intérieurement, au moins un moyen prévu apte à permettre l'évaluation de la distance qui sépare lesdits côtés supérieur et inférieur, associé à un moyen apte à délivrer un signal lorsque ladite distance atteint une valeur seuil.According to the invention, the anti-heeling device of a flexible support such as a cushion, mattress or the like, comprising an upper side and a lower side, is essentially characterized in that it comprises, internally, at least provided means adapted to allow the evaluation of the distance separating said upper and lower sides, associated with means capable of delivering a signal when said distance reaches a threshold value.

Le support souple est destiné à être placé, par son côté inférieur, sur une structure rigide ou non, un sommier ou analogue par exemple, et à recevoir, sur son côté supérieur, un objet ou un corps à supporter. Dans le cas d'un enfoncement du support souple, en un point comme en plusieurs, selon une profondeur prédéterminée, il y a émission d'un signal permettant d'informer qu'il est nécessaire de rectifier la pression de gonflage.The flexible support is intended to be placed, by its lower side, on a rigid structure or not, a bed base or the like for example, and to receive, on its upper side, an object or a body to support. In the case of a depression of the flexible support, at a point as in several, according to a predetermined depth, there is emission of a signal to inform that it is necessary to rectify the inflation pressure.

La profondeur prédéterminée correspond au seuil limite de talonnement. Elle peut aussi correspondre à une valeur supérieure à celle limite de talonnement en sorte de permettre d'anticiper le talonnement, et ainsi ne pas atteindre celui-ci.The predetermined depth corresponds to the limit threshold of bottleneck. It can also correspond to a value greater than the limit of bottleneck so as to allow to anticipate the bottleneck, and thus not reach it.

Selon une caractéristique additionnelle du dispositif selon l'invention, il est associé à des moyens de traitement du signal, eux-mêmes aptes à émettre un signal d'alerte.According to an additional characteristic of the device according to the invention, it is associated with signal processing means, themselves able to emit an alert signal.

Selon une autre caractéristique additionnelle du dispositif selon l'invention, il comporte plusieurs moyens chacun prévu apte à permettre l'évaluation de la distance qui sépare les côtés supérieur et inférieur, et chacun disposé en un emplacement prédéterminé, chacun desdits moyens étant apte à délivrer un signal distinct.According to another additional feature of the device according to the invention, it comprises several means each provided capable of allowing the evaluation of the distance separating the upper and lower sides, and each disposed in a predetermined location, each of said means being able to deliver a separate signal.

Selon un mode de réalisation particulier du dispositif selon l'invention, le moyen prévu apte à permettre l'évaluation de la distance qui sépare les côtés supérieur et inférieur consiste en un moyen apte à effectuer une mesure, associé à des moyens de traitement de la mesure effectuée.According to a particular embodiment of the device according to the invention, the means provided capable of allowing the evaluation of the distance separating the upper and lower sides consists of a means capable of carrying out a measurement, associated with means for processing the measurement done.

Selon une caractéristique additionnelle du dispositif selon l'invention, le moyen apte à effectuer une mesure consiste en des moyens émetteur et récepteur disposés au droit l'un de l'autre, l'un au niveau du côté supérieur et l'autre au niveau du côté inférieur.According to an additional characteristic of the device according to the invention, the means able to carry out a measurement consists of transmitter and receiver means arranged in right of each other, one at the level of the upper side and the other at the level of the on the lower side.

Selon un mode de réalisation particulier du dispositif selon l'invention, le moyen prévu apte à permettre l'évaluation de la distance qui sépare les côtés supérieur et inférieur consiste en au moins un élément déformable apte à contribuer à la délivrance du signal à partir d'un certain niveau de déformation liée au rapprochement desdits côtés.According to a particular embodiment of the device according to the invention, the means provided capable of enabling the evaluation of the distance separating the upper and lower sides consists of at least one deformable element capable of contributing to the delivery of the signal from a certain level of deformation related to the approximation of said sides.

Selon une variante de ce mode de réalisation particulier du dispositif selon l'invention, où le support est un support gonflable comportant au moins une enveloppe comprenant une paroi supérieure, éventuellement alvéolée, et une paroi inférieure, et l'élément déformable incorpore au moins deux éléments conducteurs distants, aptes à venir au contact l'un de l'autre sous l'effet direct du rapprochement desdites deux parois supérieure et inférieure, en sorte de fermer un circuit et d'émettre un signal.According to a variant of this particular embodiment of the device according to the invention, wherein the support is an inflatable support having at least one envelope comprising an upper wall, possibly honeycombed, and a lower wall, and the deformable element incorporates at least two remote conductive elements, adapted to come into contact with each other under the direct effect of bringing said two upper and lower walls together, so as to close a circuit and to emit a signal.

Selon une autre variante de ce mode de réalisation particulier du dispositif selon l'invention, le support est un support gonflable comportant au moins une enveloppe comprenant une paroi supérieure, éventuellement alvéolée, et une paroi inférieure, et en ce que l'élément déformable est réalisé dans un matériau conducteur électriquement, apte à être déformé sous l'effet du rapprochement des parois supérieure et inférieure, jusqu'à atteindre une déformation susceptible de fermer le circuit.According to another variant of this particular embodiment of the device according to the invention, the support is an inflatable support comprising at least one envelope comprising an upper wall, possibly honeycombed, and a lower wall, and in that the deformable element is made of an electrically conductive material, able to be deformed under the effect of the approximation of the upper and lower walls, until a deformation can close the circuit.

Selon une forme de réalisation préférentielle de cette autre variante du dispositif selon l'invention, il comporte un circuit imprimé relié à une connexion électrique et comprenant au moins deux bornes distantes, ces dernières étant destinées à coopérer avec un élément déformable réalisé en matériau conducteur électriquement séparé desdites bornes par un élément intercalaire évidé, réalisé en matériau isolant électriquement, ledit élément déformable étant apte à être forcé dans ledit élément intercalaire sous le déplacement de la paroi supérieure, en direction de la paroi inférieure, et à établir une liaison entre lesdites bornes à partir d'un certain niveau de déplacement.According to a preferred embodiment of this other variant of the device according to the invention, it comprises a printed circuit connected to an electrical connection and comprising at least two distant terminals, the latter being intended to cooperate with a deformable element made of electrically conductive material separated from said terminals by a hollow intermediate element, made of electrically insulating material, said deformable element being able to be forced into said intermediate element under the displacement of the upper wall, in the direction of the lower wall , and to establish a connection between said terminals from a certain level of displacement.

Selon une autre variante de ce mode de réalisation particulier du dispositif selon l'invention, le support est un support gonflable comportant au moins une enveloppe comprenant une paroi supérieure, éventuellement alvéolée, et une paroi inférieure, et en ce que l'élément déformable consiste en un élément gonflé, d'une épaisseur relative à une distance seuil séparant les deux parois supérieure et inférieure, associé à un moyen apte à en mesurer la pression interne et qui coopère avec un moyen comparateur permettant d'émettre le signal lorsqu'il enregistre une variation de pression significative d'un écrasement dudit élément gonflé.According to another variant of this particular embodiment of the device according to the invention, the support is an inflatable support comprising at least one envelope comprising an upper wall, possibly honeycombed, and a lower wall, and in that the deformable element consists in an inflated element, of a relative thickness at a threshold distance separating the two upper and lower walls, associated with a means capable of measuring the internal pressure and which cooperates with a comparator means for transmitting the signal when it records a significant pressure variation of a crushing of said inflated element.

Selon une forme particulière de réalisation du dispositif selon l'invention, le signal est un signal pneumatique, électromagnétique ou mécanique.According to a particular embodiment of the device according to the invention, the signal is a pneumatic, electromagnetic or mechanical signal.

Selon une autre forme de réalisation du dispositif selon l'invention, le signal est un signal électrique.According to another embodiment of the device according to the invention, the signal is an electrical signal.

Selon une caractéristique additionnelle du dispositif selon l'invention, le signal électrique est véhiculé au travers d'un circuit imprimé incorporé au support souple.According to an additional feature of the device according to the invention, the electrical signal is conveyed through a printed circuit incorporated in the flexible support.

Le dispositif selon l'invention, quel que soit le mode de réalisation envisagé, permet, pour le support gonflable, de s'affranchir totalement d'une quelconque mesure de la pression de gonflage, laquelle n'a pas besoin d'être mesurée, même lors de la phase de gonflage. En effet, lors de cette phase de gonflage on peut procéder en insufflant de l'air dans l'élément gonflable jusqu'à ce qu'il n'y ait plus de signal annonçant un risque de talonnement.The device according to the invention, whatever the embodiment envisaged, makes it possible, for the inflatable support, to be completely free of any measurement of the inflation pressure, which need not be measured, even when of the inflation phase. Indeed, during this inflation phase can be carried out by blowing air into the inflatable element until there is no more signal announcing a risk of bottleneck.

On peut aussi, et préférentiellement, sur-gonfler le support gonflable, le dégonfler jusqu'à déclenchement d'un signal, puis le regonfler de la quantité d'air juste nécessaire.It can also, and preferably, over-inflate the inflatable support, deflate until a signal is triggered, and then inflate the amount of air just needed.

Il y a lieu de remarquer que le dispositif selon l'invention peut, selon le mode de réalisation considéré, être intégré à une housse destinée à envelopper un support souple ne comportant pas un tel dispositif.It should be noted that the device according to the invention can, according to the embodiment considered, be integrated into a cover for wrapping a flexible support not comprising such a device.

Les avantages et les caractéristiques du dispositif selon l'invention, ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, lequel en représente plusieurs modes de réalisation non limitatifs.The advantages and characteristics of the device according to the invention will become more clearly apparent from the description which follows and which refers to the appended drawing, which represents several non-limiting embodiments thereof.

Dans les dessins annexés :

  • la figure 1 représente une vue schématique partielle en perspective et en éclaté d'un premier mode de réalisation du dispositif anti-talonnement d'un support souple selon l' invention.
  • la figure 2 représente une vue schématique en plan d'une partie du même dispositif.
  • la figure 3 représente une vue schématique en plan d'une partie du même dispositif.
  • les figures 4a et 4b représentent des vues schématiques partielles en coupe d'une partie du même dispositif dans des configurations différentes d'utilisation.
  • la figure 5 représente une vue schématique partielle en pers et en écorché d'un autre mode de réalisation du dispositif selon l'invention.
  • la figure 6 représente une vue schématique partielle en coupe d'un autre mode de réalisation du dispositif selon l'invention.
  • la figure 7 représente une vue schématique partielle en coupe d'un autre mode de réalisation du dispositif selon l'invention.
In the accompanying drawings:
  • FIG. 1 represents a partial diagrammatic perspective and exploded view of a first embodiment of the anti-heeling device of a flexible support according to the invention.
  • Figure 2 shows a schematic plan view of a portion of the same device.
  • Figure 3 shows a schematic plan view of a part of the same device.
  • Figures 4a and 4b show partial schematic sectional views of a portion of the same device in different configurations of use.
  • FIG. 5 represents a partial diagrammatic view in pers and in cutaway of another embodiment of the device according to the invention.
  • Figure 6 shows a partial schematic sectional view of another embodiment of the device according to the invention.
  • FIG. 7 represents a partial schematic sectional view of another embodiment of the device according to the invention.

En référence à la figure 1, on peut voir selon l'invention un dispositif anti-talonnement pour un support gonflable 1, où ce support gonflable 1 comprend une paroi inférieure ou alèse 2 et une paroi supérieure 3, cette dernière étant constituée, de manière connue en soi et non limitativement, d'une juxtaposition d'alvéoles 30.With reference to FIG. 1, it is possible to see, according to the invention, an anti-heeling device for an inflatable support 1, where this inflatable support 1 comprises a bottom wall or mattress 2 and an upper wall 3, the latter consisting, known per se and not limited to a juxtaposition of cavities 30.

On notera que le support n'est pas limité à une structure alvéolaire telle que représentée, il peut présenter d'autres formes, comme une succession de boudins par exemple.Note that the support is not limited to a honeycomb structure as shown, it may have other shapes, such as a succession of strands for example.

L'alèse 2 comporte sur sa face 20, interne au support gonflable 1, un circuit imprimé 21, également visible sur la figure 2, et qui comprend une succession de paires 22 d'électrodes distantes 23 et 24, lesquelles peuvent consister, par exemple, en des étiquettes sérigraphiées au moyen d'une encre conductrice.The pad 2 has on its face 20, internal to the inflatable support 1, a printed circuit 21, also visible in Figure 2, and which comprises a succession of pairs 22 of distant electrodes 23 and 24, which may consist, for example , in labels screen printed with a conductive ink.

Le circuit imprimé 21, et plus exactement les paires 22 d'électrodes 23 et 24, sont disposées au droit d'alvéoles particulières, lesquelles correspondent aux emplacements susceptibles de talonner en premier.The printed circuit 21, and more precisely the pairs 22 of electrodes 23 and 24, are arranged at the right of particular cells, which correspond to the locations likely to heel first.

Entre l'alèse 2 et la paroi supérieure 3 est interposée une grille 4 constituée d'un matériau isolant électriquement, et qui comprend des éléments 40 chacun en forme d'anneau ou analogue, comportant un évidement central 41 destiné à venir au droit d'une paire 22 d'électrodes distantes 23 et 24, comme cela ressort de la figure 3.Between the web 2 and the upper wall 3 is interposed a grid 4 made of an electrically insulating material, and which comprises elements 40 each ring-shaped or the like, having a central recess 41 intended to come to the right a pair 22 of distant electrodes 23 and 24, as is apparent from FIG.

On notera que dans une forme de réalisation particulière, le circuit imprimé 21 fait partie intégrante de la grille 4.It will be noted that in a particular embodiment, the printed circuit 21 is an integral part of the gate 4.

Tel que cela apparaît également sur la figure 4a, chaque élément 40 est surmonté d'un bouton 5, lequel est réalisé en une mousse souple et conductrice électriquement, ou en une mousse associée à un élément conducteur telle qu'une pastille par exemple.As also appears in Figure 4a, each element 40 is surmounted by a button 5, which is made of a flexible foam and electrically conductive, or a foam associated with a conductive element such as a pellet for example.

En référence maintenant à la figure 4b, on peut voir que lorsque la quantité d'air dans l'enveloppe 1 n'est pas suffisante, la paroi supérieure 3, non représentée, vient au contact de la face supérieure 50 du bouton 5 et y exerce une pression P, ce qui peut entraîner la déformation du bouton 5 et le forçage de celui-ci à l'intérieur de l'évidement 41 de l'élément 40, jusqu'à la mise en relation, au travers de sa face inférieure 51, des deux électrodes 23 et 24, pour aboutir à la fermeture du circuit.Referring now to Figure 4b, it can be seen that when the amount of air in the casing 1 is not sufficient, the upper wall 3, not shown, comes into contact with the upper face 50 of the button 5 and there exerts a pressure P, which can cause the deformation of the button 5 and the forcing thereof inside the recess 41 of the element 40, until the connection, through its underside 51, two electrodes 23 and 24, to end the closure of the circuit.

Selon la nature et l'épaisseur du bouton mousse 5, ainsi que des caractéristiques dimensionnelles de l'élément 40, on définit un seuil d'enfoncement à partir duquel le circuit électrique est fermé, avec pour conséquence l'émission d'un signal, lequel peut être traité pour, par exemple, déclencher une alarme, ou bien un gonflage automatique.Depending on the nature and the thickness of the foam button 5, as well as the dimensional characteristics of the element 40, a depressing threshold is defined from which the electrical circuit is closed, with the result that a signal is emitted, which can be treated to, for example, trigger an alarm, or automatic inflation.

Outre le fait que le dispositif selon l'invention permette de résoudre le problème posé, ce mode de réalisation présente l'avantage de pouvoir réaliser un contact sans créer de point dur sur le corps du patient.In addition to the fact that the device according to the invention solves the problem, this embodiment has the advantage of being able to make contact without creating a hard spot on the body of the patient.

Le circuit imprimé 21 peut être plus ou moins complexe, c'est-à-dire, par exemple, prévu apte à permettre de repérer l'emplacement du ou des contacts, autorisant ainsi la localisation des zones qui présentent un risque.The printed circuit 21 may be more or less complex, that is to say, for example, provided capable of identifying the location of the contact (s), thus allowing the location of areas that present a risk.

En référence maintenant à la figure 5, on peut voir un autre mode de réalisation du dispositif selon l'invention. On retrouve un support gonflable 1, une paroi inférieure ou alèse 2 et une paroi supérieure 3 constituée d'une juxtaposition d'alvéoles 30, dont en l'occurrence un seul est représenté.Referring now to Figure 5, we can see another embodiment of the device according to the invention. There is an inflatable support 1, a bottom wall or mattress 2 and an upper wall 3 consisting of a juxtaposition of cells 30, of which in this case only one is shown.

Dans ce mode de réalisation, la paroi inférieure ou alèse 2 présente une partie 25 déformable qui présente un profil permettant de superposer, à une certaine distance l'une de l'autre, deux électrodes 26 et 27, en sorte que l'enfoncement de l'alvéole 30, au-delà d'un certain seuil, provoque la déformation de la partie 25 jusqu'à mettre en contact les deux électrodes 26 et 27.In this embodiment, the bottom wall or mattress 2 has a deformable portion 25 which has a profile for superposing, at a distance from one another, two electrodes 26 and 27, so that the depression of the cell 30, beyond a certain threshold, causes the deformation of the portion 25 to bring into contact the two electrodes 26 and 27.

On notera que ce mode de réalisation permet d'envisager des mesures de plusieurs seuils au même emplacement.It should be noted that this embodiment makes it possible to envisage measurements of several thresholds at the same location.

On notera également que ce mode de réalisation peut être appliqué à un support autre que gonflable, en mousse souple par exemple, dans lequel sont prévus des moyens, tels qu'une cavité par exemple, pour permettre l'entrée ou non en contact des deux électrodes.Note also that this embodiment can be applied to a support other than inflatable, flexible foam for example, wherein are provided means, such as a cavity for example, to allow the entry or not in contact with the two electrodes.

En référence maintenant à la figure 6, on peut voir un autre mode de réalisation du dispositif selon l'invention, dans lequel est disposée au droit d'une alvéole 30, une cellule 6 gonflée à une certaine pression et s'étendant sur une certaine hauteur entre la paroi inférieure ou alèse 2, et la paroi supérieure 3.Referring now to Figure 6, we can see another embodiment of the device according to the invention, wherein is disposed in line with a cell 30, a cell 6 inflated to a certain pressure and extending over a certain height between the bottom wall or mattress 2, and the upper wall 3.

Lorsque la quantité d'air dans l'élément gonflable 1 n'est pas suffisante, la paroi supérieure 3 vient comprimer la cellule 6, et par la mesure de la pression interne de cette dernière on peut détecter un risque de talonnement.When the amount of air in the inflatable element 1 is not sufficient, the upper wall 3 compresses the cell 6, and by measuring the internal pressure of the latter can be detected a risk of bottleneck.

La cellule 6 peut être solidaire aussi bien de la paroi inférieure 2 que la paroi supérieure 3, mais également être entièrement libre.The cell 6 can be secured to both the bottom wall 2 and the top wall 3, but also be completely free.

Dans ce mode de réalisation, le signal émis peut être aussi bien un signal d'origine électrique, qu'un signal d'origine pneumatique.In this embodiment, the transmitted signal may be both an electrical source signal, a pneumatic origin signal.

En référence maintenant à la figure 7 on peut voir un autre mode de réalisation du dispositif selon l'invention, où la paroi inférieure 2 est munie d'un moyen émetteur 28, et la paroi supérieure 3 d'un moyen récepteur 31, ou inversement.Referring now to Figure 7 we can see another embodiment of the device according to the invention, wherein the bottom wall 2 is provided with a transmitter means 28, and the upper wall 3 of a receiving means 31, or vice versa .

Les moyens émetteur 28 et récepteur 31 sont aptes à permettre de mesurer, de manière précise si nécessaire, la distance qui les sépare, en sorte que, lorsque cette distance passe en deçà d'une certaine valeur, puisse être émis un signal.The transmitter means 28 and receiver 31 are able to measure, precisely if necessary, the distance between them, so that when this distance passes below a certain value, a signal can be emitted.

Ce mode de réalisation peut également être utilisé pour équiper des supports en mousse souple, les moyens émetteur et récepteur étant placés intérieurement, sous la surface du côté supérieur et sous la surface du côté inférieur.This embodiment can also be used to equip flexible foam supports, the transmitter and receiver means being located internally, below the surface of the upper side and under the surface of the lower side.

Claims (13)

Dispositif anti-talonnement d'un support souple (1) tel qu'un coussin, matelas ou analogue, comprenant un côté supérieur (3) et un côté inférieur (2), caractérisé en ce qu'il comporte, intérieurement, au moins un moyen (5, 40, 22 ; 25, 26, 27 ; 6 ; 28, 31) prévu apte à permettre l'évaluation de la distance qui sépare lesdits côtés supérieur (3) et inférieur (2), associé à un moyen (21) apte à délivrer un signal lorsque ladite distance atteint une valeur seuil.Anti-heeling device of a flexible support (1) such as a cushion, mattress or the like, comprising an upper side (3) and a lower side (2), characterized in that it comprises, internally, at least one means (5, 40, 22; 25, 26, 27; 6; 28, 31) provided to allow evaluation of the distance between said upper (3) and lower (2) sides, associated with a means (21); ) capable of delivering a signal when said distance reaches a threshold value. Dispositif anti-talonnement selon la revendication 1 caractérisé en ce qu'il est associé à des moyens de traitement du signal, eux-mêmes aptes à émettre un signal d'alerte.Anti-rigging device according to claim 1 characterized in that it is associated with signal processing means, themselves able to emit an alert signal. Dispositif anti-talonnement selon la revendication 1 ou la revendication 2, caractérisé en ce qu'il comporte plusieurs moyens (5, 40, 22 ; 25, 26, 27 ; 6 ; 28, 31) chacun prévu apte à permettre l'évaluation de la distance qui sépare les côtés supérieur (3) et inférieur (2), et chacun disposé en un emplacement prédéterminé, chacun desdits moyens (5, 40, 22 ; 25, 26, 27 ; 6 ; 28, 31) étant apte à délivrer un signal distinct.Anti-rigging device according to Claim 1 or Claim 2, characterized in that it comprises a plurality of means (5, 40, 22, 25, 26, 27, 6, 28, 31) each designed to permit the evaluation of the distance separating the upper (3) and lower (2) sides, and each disposed in a predetermined location, each of said means (5, 40, 22; 25, 26, 27; 6; 28, 31) being capable of delivering a separate signal. Dispositif anti-talonnement selon l'une quelconque des revendications précédentes, caractérisé en ce que le moyen prévu apte à permettre l'évaluation de la distance qui sépare les côtés supérieur (3) et inférieur (2) consiste en un moyen (28, 31) apte à effectuer une mesure, associé à des moyens de traitement de la mesure effectuée.Anti-rigging device according to any one of the preceding claims, characterized in that the means provided for allowing evaluation of the distance separating the upper (3) and lower (2) sides consists of a means (28, 31 ) able to perform a measurement, associated with means for processing the measurement performed. Dispositif anti-talonnement selon la revendication 4, caractérisé en ce que le moyen apte à effectuer une mesure consiste en des moyens émetteur (28) et récepteur (31) disposés au droit l'un de l'autre, l'un au niveau du côté supérieur (3) et l'autre au niveau du côté inférieur (2).Anti-rigging device according to Claim 4, characterized in that the means capable of taking a measurement consists of transmitter (28) and receiver (31) means arranged to the right of each other, one at the upper side (3) and the other at the lower side (2). Dispositif anti-talonnement selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le moyen prévu apte à permettre l'évaluation de la distance qui sépare les côtés supérieur (3) et inférieur (2) consiste en au moins un élément déformable (5 ; 25 ; 6) apte à contribuer à la délivrance du signal à partir d'un certain niveau de déformation liée au rapprochement desdits côtés (3, 2).Anti-rigging device according to any one of claims 1 to 4, characterized in that the means provided for enabling evaluation of the distance between the upper (3) and lower (2) sides consists of at least one element. deformable (5; 25; 6) adapted to contribute to the delivery of the signal from a certain level of deformation related to the approximation of said sides (3, 2). Dispositif anti-talonnement selon la revendication 6, caractérisé en ce que le support est un support gonflable (1) comportant au moins une enveloppe comprenant une paroi supérieure (3), éventuellement alvéolée, et une paroi inférieure (2), et en ce que l'élément déformable (25) incorpore au moins deux éléments conducteurs distants (26, 27), aptes à venir au contact l'un de l'autre sous l'effet direct du rapprochement desdites deux parois supérieure (3) et inférieure (2), en sorte de fermer un circuit et d'émettre un signal.Anti-heeling device according to claim 6, characterized in that the support is an inflatable support (1) comprising at least one envelope comprising an upper wall (3), possibly honeycombed, and a lower wall (2), and in that the deformable element (25) incorporates at least two remote conductive elements (26, 27), able to come into contact with each other under the direct effect of bringing said two upper (3) and lower (2) walls closer together (2). ), so as to close a circuit and to emit a signal. Dispositif anti-talonnement selon la revendication 6, caractérisé en ce que le support est un support gonflable (1) comportant au moins une enveloppe comprenant une paroi supérieure (3), éventuellement alvéolée, et une paroi inférieure (2), et en ce que l'élément déformable (5) est réalisé dans un matériau conducteur électriquement, apte à être déformé sous l'effet du rapprochement des parois supérieure (3) et inférieure (2), jusqu'à atteindre une déformation susceptible de fermer le circuit.Anti-heeling device according to claim 6, characterized in that the support is an inflatable support (1) comprising at least one envelope comprising an upper wall (3), possibly honeycombed, and a lower wall (2), and in that the deformable element (5) is made of an electrically conductive material able to be deformed under the effect of bringing the upper (3) and lower (2) walls closer together until a deformation is achieved which can close the circuit. Dispositif anti-talonnement selon la revendication 8, caractérisé en ce qu'il comporte un circuit imprimé (21) relié à une connexion électrique et comprenant au moins deux bornes distantes (23, 24), ces dernières étant destinées à coopérer avec un élément déformable (5) réalisé en matériau conducteur électriquement séparé desdites bornes par un élément intercalaire évidé (40), réalisé en matériau isolant électriquement, ledit élément déformable (40) étant apte à être forcé dans ledit élément intercalaire (5) sous le déplacement de la paroi supérieure (3), en direction de la paroi inférieure (2), et à établir une liaison entre lesdites bornes (23, 24) à partir d'un certain niveau de déplacement.Anti-heeling device according to claim 8, characterized in that it comprises a printed circuit (21) connected to an electrical connection and comprising at least two remote terminals (23, 24), the latter being intended to cooperate with a deformable element (5) made of conductive material electrically separated from said terminals by a hollow intermediate element (40), made of electrically insulating material, said deformable element (40) being able to be forced into said intermediate element (5) under the displacement of the upper wall (3), in the direction of of the lower wall (2), and to establish a connection between said terminals (23, 24) from a certain level of displacement. Dispositif anti-talonnement selon la revendication 6, caractérisé en ce que le support est un support gonflable (1) comportant au moins une enveloppe comprenant une paroi supérieure (3), éventuellement alvéolée, et une paroi inférieure (2), et en ce que l'élément déformable (6) consiste en un élément gonflé, d'une épaisseur relative à une distance seuil séparant les deux parois supérieure (3) et inférieure (2), associé à un moyen apte à en mesurer la pression interne et qui coopère avec un moyen comparateur permettant d'émettre le signal lorsqu'il enregistre une variation de pression significative d'un écrasement dudit élément gonflé (6).Anti-heeling device according to claim 6, characterized in that the support is an inflatable support (1) comprising at least one envelope comprising an upper wall (3), possibly honeycombed, and a lower wall (2), and in that the deformable element (6) consists of an inflated element, of a relative thickness at a threshold distance separating the two upper (3) and lower (2) walls, associated with a means capable of measuring the internal pressure thereof and which cooperates with comparator means for transmitting the signal when recording a significant pressure change of a crushing of said inflated member (6). Dispositif anti-talonnement selon l'une quelconque des revendications précédentes, caractérisé en ce que le signal est un signal pneumatique, électromagnétique ou mécanique.Anti-heeling device according to any one of the preceding claims, characterized in that the signal is a pneumatic, electromagnetic or mechanical signal. Dispositif anti-talonnement selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le signal est un signal électrique.Anti-rigging device according to one of Claims 1 to 10, characterized in that the signal is an electrical signal. Dispositif anti-talonnement selon la revendication 12, caractérisé en ce que le signal électrique est véhiculé au travers d'un circuit imprimé (21) incorporé au support souple (1).Anti-heeling device according to claim 12, characterized in that the electrical signal is conveyed through a printed circuit (21) incorporated in the flexible support (1).
EP05300363A 2005-04-27 2005-05-10 Anti-bottoming device for a flexible support Withdrawn EP1716835A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05300363A EP1716835A1 (en) 2005-04-27 2005-05-10 Anti-bottoming device for a flexible support

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05300331 2005-04-27
EP05300363A EP1716835A1 (en) 2005-04-27 2005-05-10 Anti-bottoming device for a flexible support

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US8950768B2 (en) 2010-09-13 2015-02-10 The Yokohama Rubber Company, Limited Air cellular cushion
WO2017194037A1 (en) * 2016-05-12 2017-11-16 Linet Spol. S R.O. A mattress with automatic pressure optimization

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Publication number Priority date Publication date Assignee Title
US5176424A (en) * 1988-06-10 1993-01-05 Mazda Motor Corporation Automobile seat assembly
FR2718347A1 (en) * 1994-04-06 1995-10-13 Support Systems International A method and apparatus for supporting an element to be supported, in particular the body of a patient allowing support at a controlled depth of depression.
US5815864A (en) * 1996-04-02 1998-10-06 Sytron Corporation Microprocessor controller and method of initializing and controlling low air loss floatation mattress

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5176424A (en) * 1988-06-10 1993-01-05 Mazda Motor Corporation Automobile seat assembly
FR2718347A1 (en) * 1994-04-06 1995-10-13 Support Systems International A method and apparatus for supporting an element to be supported, in particular the body of a patient allowing support at a controlled depth of depression.
US5815864A (en) * 1996-04-02 1998-10-06 Sytron Corporation Microprocessor controller and method of initializing and controlling low air loss floatation mattress

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8950768B2 (en) 2010-09-13 2015-02-10 The Yokohama Rubber Company, Limited Air cellular cushion
WO2017194037A1 (en) * 2016-05-12 2017-11-16 Linet Spol. S R.O. A mattress with automatic pressure optimization
US11266556B2 (en) 2016-05-12 2022-03-08 Linet Spol. S.R.O. Mattress with automatic pressure optimization

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