EP1056372B1 - Procede et appareil de support d'un element a supporter, en particulier le corps d'un patient, a systeme integre d'equilibre dynamique et automatique de pression - Google Patents
Procede et appareil de support d'un element a supporter, en particulier le corps d'un patient, a systeme integre d'equilibre dynamique et automatique de pression Download PDFInfo
- Publication number
- EP1056372B1 EP1056372B1 EP99902624A EP99902624A EP1056372B1 EP 1056372 B1 EP1056372 B1 EP 1056372B1 EP 99902624 A EP99902624 A EP 99902624A EP 99902624 A EP99902624 A EP 99902624A EP 1056372 B1 EP1056372 B1 EP 1056372B1
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- EP
- European Patent Office
- Prior art keywords
- pressure
- chamber
- sensor
- support device
- predetermined
- 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.)
- Expired - Lifetime
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Classifications
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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
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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
- 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
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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
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
- A61G2203/36—General characteristics of devices characterised by sensor means for motion
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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
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
- A61G2203/44—General characteristics of devices characterised by sensor means for weight
Definitions
- the present invention essentially relates to a method and a apparatus for supporting an element to be supported, in particular a body of a patient, with integrated dynamic and automatic pressure balance system.
- interface pressures constitute the main factor in the development of complications resulting from prolonged immobilization in the subject at risk, in particular bedsores.
- the interface pressures also represent a essential element of the concept of comfort.
- Support devices have already been proposed in the prior art comprising a support device proper of an element to be supported, in particular the body of a patient, support device generally mainly known as a mattress.
- Other support devices are naturally armchairs, cushions, back parts of seats.
- the support itself comprises at least one closed or controlled, flexible, inflatable pressure dependent on distance maximum insertion allowed in the support of the element to be supported. From this fact, filling and evacuation means are provided for filling or inflate said chamber until the depression is brought back below the distance maximum penetration allowed.
- the object of the present invention is to solve the new problem technique consisting in providing a solution which makes it possible to carry out a dynamic and automatic or substantially automatic pressure regulation inflation of at least one chamber provided in or constituting the device for support, without using an electric, capacitive or inductive.
- the invention therefore aims at a solution entirely different from the solutions previously recommended, thus opening a new path particularly advantageous.
- the present invention also aims to solve the new technical problem consisting in providing a solution which allows achieve dynamic and automatic or substantially automatic regulation of the inflation pressure of at least one chamber provided in or constituting the support device, depending on the weight of the morphological characteristics of the body to be supported, by comparing the pressure existing in said chamber that restored by an appropriate sensor and cooperating with said chamber so as to give a coherent picture of the forces applied to them and their variation in order to bring the body to bear to an equilibrium position optimal from the point of view of the interface pressures exerted on said body at a instant.
- the main object of the present invention is also to solve the aforementioned new technical problem by using a solution simple, economically inexpensive, thereby reducing the cost of manufacturing and operation.
- the present invention also aims to solve the new technical problems stated above, so as to provide a solution efficient, including technical and physical characteristics the thickness, are such that they can be used in any support device, in especially mattresses including mattress toppers, also cushions and armchairs or even in other types of applications like, for example, lifting and measurement.
- the main object of the present invention is also to resolve the new technical problem consisting in providing a solution allowing advantageously to integrate an efficient pressure regulation system in a limited thickness, reliably, safely, easy to use, economical and usable on an industrial and medical scale.
- the present invention provides a method of dynamic and substantially automatic or automatic regulation of the inflation pressure of at least one first flexible, inflatable chamber provided in or constituting a support device, in particular a mattress, a mattress topper, an armchair, a cushion or a seat back, comprising a step of detecting the inflation pressure at a given instant, called P 1 (t) of said chamber, and a step of correcting this pressure P 1 ( t), as a function of predetermined support characteristics, characterized in that at least one physical pressure sensor is provided, comprising at least one second inflatable chamber inflated to a predetermined initial pressure P 2 , in that said sensor is placed relative to said support device so that the second chamber of said sensor has its pressure influenced by a pressure change in the first cham bre of the support device; in that the instantaneous pressure value at a given instant called P 2 (t) is detected in the second chamber of the sensor, in that the pressure measured in the first chamber P 1 (t) is compared with the measured pressure in the second chamber P
- the senor has at least one second chamber having a substantially constant volume.
- the initial inflation pressure of the second sensor chamber is fixed at a predetermined value and this pressure is then allowed to freely evolve in function of the influence of pressure changes in the first chamber of the support device.
- the initial pressure of the second chamber of the sensor is equal to or substantially equal to atmospheric pressure.
- the senor comprising the aforementioned second chamber is arranged under the device for support comprising at least said first chamber.
- the pressure P 1 (t) in the first chamber is corrected when this pressure P 1 (t) deviates from a value or from a value range predetermined pressure P 2 (t) of the second chamber serving as the reference pressure.
- the present invention also relates to a support device with dynamic and substantially automatic or automatic regulation of the inflation pressure P 1 of at least one first flexible, inflatable chamber of a device for supporting an element to supporting, in particular the body of a patient, means for detecting the pressure in said first chamber; and means for controlling means for correcting the pressure in said first chamber as a function of predetermined pressure characteristics, comprising first means for inflating / deflating said chamber of the support device to a variable pressure, including a predetermined initial pressure, characterized in that it comprises at least one physical pressure sensor comprising at least one second inflatable chamber, inflated to a predetermined initial pressure P 2 , said sensor being arranged so as to have the pressure of its second chamber influenced by a change in pressure in the first chamber; means for comparing the pressure P 1 in said first chamber with the pressure P 2 in said second chamber, said control means optionally controlling the means for correcting the pressure in said first chamber when the pressure difference is different from a predetermined setpoint pressure value or a predetermined setpoint pressure range.
- the invention makes it possible to resolve all of the technical problems previously stated in a reliable, safe, easy to to implement, economical and usable on an industrial and medical scale.
- the invention provides a solution advantageously making it possible to integrate the various means or devices of the invention in a regulation system in efficient pressure in a limited thickness, thus making it possible to limit to in turn the overall size of the support device.
- a support apparatus according to the present invention is represented by the general reference number 10.
- This apparatus for support allows to support an element to be supported, in particular, as depicted the body of a patient such as a human H.
- This device 10 comprises a support device proper 12 comprising at least one closed chamber or with controlled exhaust 14, flexible.
- inflatable which can for example be composed of a multiplicity of inflatable tubes communicating with each other, said chamber 14 being inflatable under an inflation pressure P 1 .
- this chamber 14 is not necessarily inflated, but it is more practical to start with an initial pressure, for example close to that of the second chamber 51 described below.
- This chamber 14 has an upper face 15 serving as a support for the element to be supported H, a lower face 16 which can, for example, here rest on a base element represented by the general reference number 40 which, itself, may rest directly or indirectly on a base not shown here.
- the device 12 - base element 40 assembly can be included in a cover 11.
- the apparatus also includes means 30 for controlling means 20 of so-called correction of the filling pressure P 1 of the chamber 14 by pumping means 20, comprising filling means proper 21 such as a compressor , using a fluid for filling the chamber 14, in particular air, discharge means 22 such as a controlled leak valve, connected to the chamber 14 by an appropriate pipe 23.
- filling means proper 21 such as a compressor
- discharge means 22 such as a controlled leak valve
- Means 31 for measuring pressure (see FIG. 3), in particular of the pressure P 1 in the first chamber 14 are also provided, connected to the first chamber 14 by a suitable conduit 32. These means 31 are physically incorporated into the means 30.
- the apparatus 10 also comprises a physical pressure sensor 50 comprising at least a second inflatable chamber 51, inflated to a predetermined initial pressure P 2.
- This sensor 50 is connected by a conduit 34 by means of pressure measurement 31 which also includes, in an integrated manner, means 38 for comparing the pressure between the pressure P 1 prevailing in the first chamber 14 of the support device 12 and the pressure P 2 prevailing in the second chamber 51 of the sensor 50.
- this physical pressure sensor 50 is arranged relative to the support device 12 so as to have its pressure P 2 (t) prevailing in the chamber 51 influenced by a change in pressure P 1 (t) prevailing in the first chamber 14 of the support device 12.
- the sensor 50 while remaining independent, gives a pressure value P 2 (t) permanently restoring a coherent image of the pressure P 1 (t) prevailing in the first chamber 14 of the support device 12.
- this sensor 50 comprises a closed, flexible pocket 52 defining the chamber 51, the volume of which, once said chamber 51 is filled with an inert fluid such as distilled water and treated, silicone oil or any other suitable fluid, is substantially constant so that the sensor acts like a real mechanical pressure transducer.
- an inert fluid such as distilled water and treated, silicone oil or any other suitable fluid
- the chamber 14 has its own filling 21 and discharge 22 means.
- the pressure measurement means 31 which advantageously carry out a differential measurement of the pressures P 1 (t) and P 2 (t) exerted respectively in the chamber 14 of the chamber 51, are part integral with the control means 30, constantly converting the differential pressure value P 1 (t) - P 2 (t) into an electrical signal and by appropriate means shown in FIG. 3, and delivering an electrical voltage, via the means 38 also comprising a shaping circuit (see FIG.
- All the circuits constituting the means 30 for controlling the means 20 for filling / evacuating the fluid from the chamber 14 are clearly understandable to those skilled in the art from the electronic circuit of FIG. 3 which is incorporated here by reference entirely in the description and forms an integral part of the present invention.
- the means 31 for measuring the pressure P 1 , P 2 , for comparing and delivering an output voltage value V s are well known to those skilled in the art and available commercially.
- the senor 50 is broken down into the pocket 52 defining the pressure take-off chamber 51 P 2 (t) of an electronic circuit 30 constantly converting the pressure difference P 1 (t) -P 2 into an electrical signal ( t) between the chamber 14 and the chamber 52 so as to automatically regulate the pressure in the chamber 14 by controlling the means 20 for filling (21) and evacuating (22) fluid.
- an electronic circuit 30 separately capturing the pressures P 1 and P 2 respectively in the first chamber 14 and the second chamber 51, converting these pressures into electrical signals then comparing these signals to finally automatically control the means 20 for filling and evacuating fluid from chamber 14.
- this type of associated pressure sensor 50 to the support device 12 and cooperating with an alarm system can also be used in patient monitoring, to detect exit or possible fall of this patient.
- a sensor 50 whose initial pressure P 2 in the chamber 51 would be fixed at any predetermined pressure value, different from atmospheric pressure constitutes another type of embodiment perfectly usable, in particular in other applications.
- a pressure P 1 (t) is produced in the first chamber 14, for example by applying a body of a human being H to the upper face 15 of the chamber 14 or its withdrawal, this pressure is transmitted to the pocket 52 defining the second chamber 51 which reacts with a pressure P 2 (t).
- the filling 21 or discharge 22 means are used for a certain duration ⁇ t until the instantaneous pressure balance is restored within the predetermined limits, that is to say until l 'we have P 1 (t + ⁇ t) between P 2 (t + ⁇ t) - epsilon and P 2 (t + ⁇ t) + epsilon.
- the sensor 50 associated with the electronic measurement device 30 provides an electrical signal proportional to the difference in pressure P 1 (t) -P 2 (t) between the first chamber 14 of the support device 12 and the second chamber 51 of the sensor 50, resulting from the penetration of the body here of a human being H into chamber 14.
- This electrical signal represents the instantaneous set point of the system in dynamic equilibrium and around which regulation takes place pressure in chamber 14, automatically corrected in real time from so as to ensure the balance of pressures between the second chamber 51 of the pocket 52 of sensor 50 and first chamber 14 of support device proper 12.
- Each setpoint has a regulation pressure given and therefore a position of the body in chamber 14 according to its weight and its own morphological characteristics.
- the pressure regulation is done by the filling means and fluid evacuation, especially all or nothing, via the compressor 21 and the controlled leak valve 22.
- System response is as fast as sensor 50 can be and the electronic control unit 30 coupled to the means 20 of filling (21) and evacuation (22) of fluid.
- the circuit is based on the use of a differential pressure sensor receiving at a time t on the one hand the pressure of the chamber 14 P 1 (t) and on the other hand the pressure P 2 (t) of the chamber 51.
- the signal appearing at A represents after amplification an instantaneous voltage proportional to the pressure difference P 1 (t) -P 2 (t).
- the 10 V reference voltage is used for the comparators of control and alarm. It is also used to power the electrical sensor of pressure 31 in pressure called U3.
- An initial adjustment shifts the signal from point A in order to compensate for any dispersions due to the sensor 50 or to the components e.
- the signal obtained at point B is therefore that of point A increased by initial setting signal.
- the electrical signal obtained at point B is therefore that of point A increased start-up signal.
- Comparators separate the compressor control 21 from that of the leak valve 22.
- a pressure alarm can be triggered when the pressure difference P 1 (t) -P 2 (t) is very outside the regulation range, the alarm value is for example ⁇ 2 inches H 2 O.
- the alarm signal present at point E is timed before activating the actual alarm, so as not to take variations into account rapid pressures such as, for example, those resulting from movements of the patient.
- the experimental reaction curve of the support device 12, here a mattress is obtained in the form of a graph where the pressure P 1 in the mattress is a function of the load in kilograms applied centered on the sensor 50, the sensor 50 being uncoupled from the mattress 12, the initial pressure being, for reasons of convenience, fixed at 1.4 inches H 2 O.
- the curve obtained shows that the pressure response of the mattress 12 is linear in the field under consideration.
- the curves have substantially the same appearance, for example for all the angulations of the back-up part of an articulated bed at 0 °, 45 ° and 60 °, and for all body weights. from 50 to 100 kg, with interface pressures P 1 in chamber 14 of the mattress, the values of which show the effect of regulation in the field considered.
- the invention makes it possible to implement the method of dynamic and automatic pressure regulation in a safe and reliable manner, economical, usable on an industrial and commercial scale as previously stated.
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- Health & Medical Sciences (AREA)
- Nursing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Invalid Beds And Related Equipment (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Radiation-Therapy Devices (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Description
- La figure 1 représente schématiquement un mode de réalisation actuellement préféré d'un appareil de support selon la présente invention, comprenant un dispositif de support à chambre unique ;
- la figure 2 représente une vue de détail de dessus du capteur et du système électronique comprenant des moyens de détection et de comparaison de pression associés, selon une ligne de trace II-II de la figure 1 ;
- la figure 3 représente une vue schématique des moyens 30 de commande de l'appareil ;
- la figure 4 représente le circuit électronique de l'appareil de régulation dynamique et sensiblement automatique ou automatique de la pression dans le dispositif de support mettant en oeuvre les fonctions définies à la figure 3 ;
- la figure 5 représente une courbe de réaction en pression séparée du matelas constituant ici le dispositif de support 12, P1, en ordonnées, en unité de pouce d'eau équivalente à 2,54 mbars, en fonction de la charge appliquée directement au centre du capteur de pression 50 exprimée en kilogramme, rapportée en abscisse, le capteur 50 étant physiquement désacouplé du matelas 12;
- la figure 6 représente une courbe analogue à la figure 5, du capteur 50 ayant une hauteur initiale à 30 mm et gonflé à une pression initiale de 1,0 pouce H2O = 2,54 mbars, en fonction de la charge en kilogramme exprimée en abscisse, appliquée directement au centre du capteur 50 ;
- la figure 7 est une courbe de pression analogue à celle des figures 5 et 6 mais représentant en ordonnée les valeurs de pression P1 du matelas 12 obtenues à la figure 4 en fonction des valeurs de pression P2 du capteur 50 obtenues à la figure 5, en abscisse, avec pour paramètre la charge appliquée sur le capteur 50, soit P1 = f(P2) ;
- la figure 8 représente la valeur de pression dynamique P1 ou P2 de réponse respectivement du matelas 12 ou du capteur 50, exprimée en ordonnée en pouce d'eau équivalente à 2,54 mbars, en fonction de la charge réelle appliquée sur le matelas formant le dispositif de support 12, telle qu'ici un patient H appliquant par le poids de son corps une charge exprimée en kilogramme et en abscisse avec un premier point de mesure à une pression initiale de 1,4 pouces de H2O = 1.4 x 2,54 mbars ; et
- la figure 9 représente des courbes de réponse obtenues au fonctionnement réel pour différents angles de la partie relève-dos d'un lit articulé à 0°, 30°, 45° et 60°, et pour toutes les masses corporelles de 50 à 100 kg, avec des pressions d'interface P1 dans la chambre 14 du matelas dont les valeurs montrent l'effet de la régulation dans le domaine considéré.
Claims (12)
- Procédé de régulation dynamique essentiellement automatique ou automatique de la pression de gonflage d'au moins une première chambre (14) souple, gonflable prévue dans ou constituant un dispositif de support (12), en particulier un matelas, un surmatelas, un fauteuil, un coussin ou un dossier de siège, comprenant une étape de détection de la pression de gonflage à un instant donné, dite P1(t) de ladite chambre (14), et une étape de correction de cette pression P1(t), en fonction de caractéristiques de support prédéterminées. caractérisé en ce qu'on prévoit au moins un capteur (50) physique de pression. comprenant au moins une deuxième chambre (51) gonflable, gonflée à une pression initiale prédéterminée P2, en ce qu'on dispose ledit capteur (50) relativement audit dispositif de support (12) de manière à ce que la deuxième chambre (51) du capteur (50) ait sa pression influencée par un changement de pression P1(t) dans la première chambre (14) du dispositif de support (12) ; en ce qu'on détecte la valeur de pression instantanée à un instant donné dite P2(t) dans la deuxième chambre (51) du capteur (50), en ce qu'on compare la pression mesurée dans la première chambre P1(t) avec la pression mesurée dans la deuxième chambre P2(t) et en ce qu'on procède éventuellement à une correction de pression dans la première chambre (14) lorsque l'écart de pression mesuré est supérieur à une valeur de pression de consigne ou une plage de valeur de pression de consigne prédéterminée.
- Procédé selon la revendication 1, caractérisé en ce que le capteur (50) présente au moins une deuxième chambre (51) ayant un volume sensiblement constant.
- Procédé selon la revendication 1 ou 2, caractérisé en ce que la pression initiale P2 de gonflage de la deuxième chambre (51) du capteur (50) est fixée à une valeur prédéterminée et on laisse ensuite librement évoluer cette pression P2(t) en fonction de l'influence de modifications de pression P1(t) dans la première chambre (14) du dispositif de support (12) ; de préférence, la pression initiale P2(t) de la deuxième chambre (51) du capteur (50) est égale ou sensiblement égale à la pression atmosphérique.
- Procédé selon l'une des revendications précédentes, caractérisé en ce que le capteur (50) comprenant la deuxième chambre (51) est disposé sous le dispositif de support (12) comprenant au moins la première chambre (14).
- Procédé selon l'une des revendications précédentes, caractérisé en ce qu'on corrige la pression P1(t) dans la première chambre (14) lorsque cette pression P1(t) s'écarte d'une valeur ou d'une plage de valeur prédéterminée de la pression P2(t) de la deuxième chambre (51) servant de pression de consigne.
- Procédé selon l'une des revendications précédentes, caractérisé en ce qu'on réalise une régulation de support d'un patient alité sur un matelas, notamment pour prévenir ou traiter des escarres.
- Appareil de support (10) à régulation dynamique et sensiblement automatique ou automatique de la pression P1 de gonflage d'au moins une première chambre (14) souple, gonflable d'un dispositif de support (12) d'un élément à supporter (H), en particulier le corps d'un patient ; des moyens (31) de mesure de la pression P1(t) dans ladite première chambre (14) ; et des moyens (30) de commande de moyens (20) de correction de la pression P1(t) dans ladite première chambre (14) en fonction de caractéristiques de pression prédéterminées, les moyens (20) de correction comprenant des premiers moyens de gonflage (21)/dégonflage (22) de ladite première chambre (14) du dispositif de support (12) à une pression variable, incluant une pression initiale prédéterminée, caractérisé en ce qu'il comprend au moins un capteur (50) physique de pression comprenant au moins une deuxième chambre (51) gonflable, gonflée à une pression initiale prédéterminée P2, ledit capteur (50) étant disposé de manière à avoir la pression P2(t) de sa deuxième chambre (51) influencée par un changement de pression P1 dans la première chambre (14) ; des moyens (38) de comparaison de la pression P1 dans la première chambre (14) avec la pression P2 dans la deuxième chambre (51), lesdits moyens de commande (30) commandant éventuellement les moyens (20) de correction de la pression P1 dans la première chambre (14) lorsque l'écart de pression P1-P2 est différent d'une valeur de pression de consigne prédéterminée ou d'une plage de valeur de pression de consigne prédéterminée.
- Appareil selon la revendication 7, caractérisé en ce que le capteur (50) présente au moins une deuxième chambre (51) ayant un volume sensiblement constant.
- Appareil selon la revendication 7 ou 8, caractérisé en ce que la pression initiale P2 de gonflage de la deuxième chambre (51) du capteur (50) est fixée à une valeur prédéterminée et cette pression évolue ensuite librement en fonction de l'influence de modifications de pression P1 dans la première chambre (14) du dispositif de support (12), de préférence, la pression initiale P2 de la deuxième chambre (51) du capteur (50) est égale ou sensiblement égale à la pression atmosphérique.
- Appareil selon l'une des revendications 7 à 9, caractérisé en ce que le capteur (50) comprenant la deuxième chambre (51) précitée est disposé sous le dispositif de support (12) comprenant au moins la première chambre (14).
- Appareil selon l'une des revendications 7 à 10, caractérisé en ce que les moyens (20) de correction corrigent la pression P1(t) dans la première chambre (14) lorsque cette pression P1(t) s'écarte d'une valeur ou d'une plage de valeur prédéterminée de la pression P2(t) de la deuxième chambre (51) servant de pression de consigne.
- Capteur (50) physique de pression comme moyen nécessaire pour la mise en oeuvre du procédé selon l'une des revendications 1 à 6 ou pour la fabrication de l'appareil selon l'une des revendications 7 à 11, caractérisé en ce que ledit capteur (50) physique de pression comprend au moins une chambre (51) gonflable pouvant être gonflée à une pression initiale prédéterminée P2, ladite chambre (51) ayant un volume sensiblement constant, ledit capteur (50) étant pris seul ou combiné avec les moyens (30) de comparaison et/ou de commande des moyens (20) de correction de pression.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9801466A FR2774573B1 (fr) | 1998-02-09 | 1998-02-09 | Procede et appareil de support d'un element a supporter, en particulier le corps d'un patient, a systeme integre d'equilibre dynamique et automatique de pression |
FR9801466 | 1998-02-09 | ||
PCT/FR1999/000277 WO1999039613A1 (fr) | 1998-02-09 | 1999-02-09 | Procede et appareil de support d'un element a supporter, en particulier le corps d'un patient, a systeme integre d'equilibre dynamique et automatique de pression |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1056372A1 EP1056372A1 (fr) | 2000-12-06 |
EP1056372B1 true EP1056372B1 (fr) | 2003-05-02 |
Family
ID=9522724
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99902624A Expired - Lifetime EP1056372B1 (fr) | 1998-02-09 | 1999-02-09 | Procede et appareil de support d'un element a supporter, en particulier le corps d'un patient, a systeme integre d'equilibre dynamique et automatique de pression |
Country Status (10)
Country | Link |
---|---|
US (1) | US6094762A (fr) |
EP (1) | EP1056372B1 (fr) |
JP (1) | JP2002501799A (fr) |
AT (1) | ATE238724T1 (fr) |
AU (1) | AU2285199A (fr) |
BR (1) | BR9907786A (fr) |
CA (1) | CA2319594A1 (fr) |
DE (1) | DE69907416T2 (fr) |
FR (1) | FR2774573B1 (fr) |
WO (1) | WO1999039613A1 (fr) |
Families Citing this family (78)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2757378B1 (fr) * | 1996-12-23 | 1999-03-12 | Support Systems International | Procede et appareil de support d'un element a supporter, en particulier le corps d'un patient, presentant un dispositif de support independant d'un dispositif de controle |
BR9914920A (pt) * | 1998-10-28 | 2001-07-10 | Hill Rom Co Inc | Métodos de minimizar uma força entre uma superfìcie de apoio modificável e um paciente localizado sobre ela, e de controlar a pressão em uma superfìcie inflável, aparelhos de otimização de força para minimizar forças entre uma superfìcie de apoio e um paciente, e de superfìcie de apoio |
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NL8502789A (nl) | 1985-10-11 | 1987-05-04 | Auping Bv | Matras. |
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FR2758259B1 (fr) * | 1997-01-13 | 1999-04-02 | Support Systems International | Procede et appareil de gonflage rapide d'une chambre gonflable, en particulier une chambre d'un dispositif de support, tel qu'un matelas |
FR2760967B1 (fr) * | 1997-03-19 | 1999-08-06 | Support Systems International | Procede et appareil de degonflage rapide et de vidage sensiblement total d'une chambre gonflable, en particulier une chambre d'un dispositif de support tel qu'un matelas |
-
1998
- 1998-02-09 FR FR9801466A patent/FR2774573B1/fr not_active Expired - Lifetime
- 1998-04-03 US US09/055,096 patent/US6094762A/en not_active Expired - Lifetime
-
1999
- 1999-02-09 EP EP99902624A patent/EP1056372B1/fr not_active Expired - Lifetime
- 1999-02-09 JP JP2000530127A patent/JP2002501799A/ja active Pending
- 1999-02-09 WO PCT/FR1999/000277 patent/WO1999039613A1/fr active IP Right Grant
- 1999-02-09 AT AT99902624T patent/ATE238724T1/de not_active IP Right Cessation
- 1999-02-09 BR BR9907786-8A patent/BR9907786A/pt not_active IP Right Cessation
- 1999-02-09 AU AU22851/99A patent/AU2285199A/en not_active Abandoned
- 1999-02-09 DE DE69907416T patent/DE69907416T2/de not_active Expired - Lifetime
- 1999-02-09 CA CA002319594A patent/CA2319594A1/fr not_active Abandoned
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JP2002501799A (ja) | 2002-01-22 |
AU2285199A (en) | 1999-08-23 |
FR2774573A1 (fr) | 1999-08-13 |
DE69907416T2 (de) | 2004-01-08 |
FR2774573B1 (fr) | 2000-04-28 |
DE69907416D1 (de) | 2003-06-05 |
US6094762A (en) | 2000-08-01 |
BR9907786A (pt) | 2000-10-17 |
WO1999039613A1 (fr) | 1999-08-12 |
ATE238724T1 (de) | 2003-05-15 |
EP1056372A1 (fr) | 2000-12-06 |
CA2319594A1 (fr) | 1999-08-12 |
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