EP4103797B1 - Confinement assembly intended to be installed in a high-risk room, and method for implementing same - Google Patents

Confinement assembly intended to be installed in a high-risk room, and method for implementing same Download PDF

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Publication number
EP4103797B1
EP4103797B1 EP21704328.0A EP21704328A EP4103797B1 EP 4103797 B1 EP4103797 B1 EP 4103797B1 EP 21704328 A EP21704328 A EP 21704328A EP 4103797 B1 EP4103797 B1 EP 4103797B1
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EP
European Patent Office
Prior art keywords
room
skirt
airlock
air
assembly according
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EP21704328.0A
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German (de)
French (fr)
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EP4103797C0 (en
EP4103797A1 (en
Inventor
Guillaume RIBOT
John Mumford
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Aspida
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Aspida
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
    • E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
    • E04H1/1277—Shelters for decontamination
    • 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
    • A61G10/00—Treatment rooms or enclosures for medical purposes
    • A61G10/02—Treatment rooms or enclosures for medical purposes with artificial climate; with means to maintain a desired pressure, e.g. for germ-free rooms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
    • E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
    • E04H1/125—Small buildings, arranged in other buildings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/015—Room atmosphere, temperature or pressure control devices
    • 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
    • A61G10/00—Treatment rooms or enclosures for medical purposes
    • A61G10/005—Isolators, i.e. enclosures generally comprising flexible walls for maintaining a germ-free environment
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure
    • E04H2015/201—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure with inflatable tubular framework, with or without tent cover

Definitions

  • the present invention relates to the technical field of confinement, in particular during interventions in so-called high-risk rooms.
  • these risky parts may be parts not yet contaminated, but which are likely to be. This may be due to the fact that these rooms will either accommodate patients who are at least potentially contaminated, or be the location of a contaminating activity in the sense in particular of nuclear, radiological, chemical or biological risks for humans.
  • These high-risk rooms can also be rooms that are already contaminated, which accommodate patients who are at least potentially contaminated.
  • the expression “at least potentially contaminated” means that the patients concerned are actually contaminated, or have significant suspicions of such contamination.
  • the invention firstly concerns a containment assembly, which is intended to be installed in such a risky room or in the vicinity of the latter.
  • the invention also relates to a method allowing the implementation of this assembly, in particular its installation in the aforementioned room or in the vicinity of the latter.
  • containment airlocks In order to protect workers, it is known to install containment airlocks in high-risk premises, typically hospital rooms. First of all, we know of solutions using a rigid frame on which a flexible canvas rests. This type of containment airlock does not, however, prove to be satisfactory, particularly because it does not cannot be easily adapted to the different shapes and dimensions of the rooms in which they must be mounted. In addition, the total time required for the assembly, equipment and dismantling of airlocks is relatively high.
  • This assembly includes an airlock equipped with two passages, associated with two closures, a skirt secured to the airlock which defines a confined tunnel opening into one of these passages, as well as means for supporting the skirt on a partition of the room .
  • the present invention therefore aims to meet this need.
  • the containment assembly according to the invention which is designated in its entirety by the reference I, is intended to equip a room that is contaminated or likely to be contaminated.
  • this room 100 is a room in a hospital.
  • the assembly according to the invention can be fitted to other types of risky parts, within the meaning of the definition given in the introductory part of this description.
  • These risky rooms may in particular consist of conventional premises, such as offices or classrooms. Such premises will be used to accommodate at least potentially contaminated patients, therefore being diverted from their usual use.
  • This room 100 comprises in a manner known per se a floor 102, a ceiling 104, a glass partition 106 as well as blind partitions, only one of which 108 is shown in the figure. Furthermore, a partition 110 allows communication between this room 100 and the corridor 130. For this purpose this partition is hollowed out with an opening, at the periphery of which a frame 120 extends, allowing the articulation of a door of entrance 122. Room 100 is also equipped with various medical devices of conventional type, which will not be described in more detail in what follows, such as in particular a bed 124.
  • the confinement assembly I firstly comprises an airlock 1, which comprises a frame 10.
  • the latter which is of any type known per se, is advantageously of the inflatable type.
  • This frame 10 supports different walls of the airlock, namely first of all a lower wall 11 and an upper wall 12, as well as opposite side walls 13 and 14.
  • the opposite walls 15 and 16 are provided with respective slides 17 and 18, for example of the zipper type.
  • these slides 17 and 18 delimit a closed interior volume V1 of the airlock, which is waterproof.
  • these slides 17 and 18 define passages 19 and 20, allowing a user to pass through the aforementioned walls 15 and 16.
  • the airlock 1 is made of any suitable material, advantageously treated for protection against fire.
  • the material constituting the airlock is of a flexible nature, which allows easy adaptation of the confinement assembly according to the invention to parts of different geometries.
  • PVC polyvinyl chloride
  • a thickness of around 0.3 to 0.5 millimeters can be used.
  • the confinement assembly I further comprises a skirt, designated as a whole by the reference 3.
  • This skirt is fixed by any appropriate means, advantageously by welding, at the level of the rear wall 15 of the airlock.
  • This skirt delimits a tunnel 4, which is bordered by respectively lower 31, upper 32 and opposite side walls 33 and 34. This tunnel is open in two opposite directions, both forwards towards the wall 15 and towards the rear towards the main corridor 130.
  • the material constituting the skirt 3 is identical to that of the airlock 1. Furthermore, also advantageously, the skirt is of a flexible nature. In reference to the figure 2 this means that, typically, this skirt has a possibility of significant rotational movement in two opposite directions, relative to the longitudinal axis X1 of the confinement assembly.
  • the skirt 3 is provided with a crown 42, intended to be pressed against the rear face 111 of the partition 110, at the periphery of the frame 120.
  • This crown 42 which has an overall U shape , has an upper core 43, as well as lateral wings 44.
  • the external periphery of this core and these wings is bordered by a frame, which is intended to receive an adhesive 45.
  • This adhesive 45 is advantageously produced in the form of an adhesive strip, reinforced by fibers.
  • a rod 46 is provided, advantageously of a nature telescopic, which provides a mechanical prop function between the side walls 33 and 34 of the skirt.
  • the crown 42 also has a flap 47, which in use forms a horizontal threshold ensuring sealing at the interface between the partition and the floor.
  • This threshold 47 therefore extends, towards the rear, both the lower wall 31 and the wings 44.
  • this threshold 47 comprises in particular a base 48, produced in the form of a massive plate of a rigid material and dense, typically made of stainless steel whose thickness is for example 5 mm.
  • This base 48 ensures, in cooperation with the support rod 46, satisfactory mechanical stabilization of the skirt 3.
  • the confinement assembly according to the invention further comprises an extraction member, designated as a whole by the reference 5.
  • the latter consists first of all of a hollow body 50, of generally parallelepiped shape.
  • This hollow body is supplied with air by an inlet connector 52, which is introduced into an orifice 36 made in one of the side walls of the skirt 3. Means not shown, of any known type, ensure the seal between the walls facing this orifice 36 and this connection 52.
  • this hollow body supplies air to an outlet connection 54, which is in communication with a suction and filtration unit 6, which will be described below .
  • the hollow body 50 has a small footprint, in the transverse direction Y1 of the confinement assembly. Consequently, and also thanks to its rigid nature, this hollow body allows easy transit in the confined tunnel, for example for a bed or a wheelchair. It should also be noted that this hollow body can fulfill an additional function, namely allowing the passage of measuring or sampling tools.
  • These fans allow air to escape from unit 6, via outlet means.
  • these means are formed by a fan outlet grille, which is assigned the reference 68.
  • this unit 6 is also provided with a control 70, of any suitable type, which will not be described in more detail in the following.
  • this control is 2 means equipped with gauges 72. The latter make it possible to display the value of the pressure cascades between, on the one hand, the clean corridor 120 and the airlock 1 is, on the other hand, between this airlock and the room 100.
  • the confinement assembly according to the invention is finally provided with means, allowing a controlled admission of air into the interior of the room 100.
  • two registers 80 and 82 are provided, the structures of which are identical. These registers are integrated into the front and rear walls respectively of the airlock.
  • each register is movable between a closed position, in which it prohibits the passage of air between the spaces which it delimits, as well as an open position in which it authorizes this passage of air. in a single predefined direction. Consequently, in the case of the present invention, each register firstly prohibits the passage of air in the unwanted direction, from the chamber towards the airlock, as well as from the airlock towards the confined tunnel. Furthermore, each register allows the passage of air, in this single chosen direction, only when the predefined nominal pressure is reached.
  • registers 80 and 82 have a predefined nominal value. In other words, they allow the passage of air only beyond a predefined pressure difference.
  • registers also of a type known per se, for which the nominal value is adjustable.
  • the nominal values V 80 as well as V 82 of these registers are typically equal. As non-limiting examples, each of these nominal values is between 5 and 15 Pascal.
  • the interior volume of the chamber 100 Preferably, it is first of all a matter of sealing the interior volume of the chamber 100.
  • a coating of the peelable resin type is advantageously used. This resin is applied to the areas of the partitions, likely to promote air transit with the outside. This exterior transit can take place not only in the direction of the corridor, but also in the direction of adjacent rooms.
  • unit 6 is started. Consequently, air is extracted towards this unit 6, by the intermediate of the extraction member 5, which is materialized by the successive arrows F5 and F6 on the figures 8 to 10 . This air is filtered, then returned to the corridor at the level of the exit means 68, which is indicated by the arrows F 68 on these figures 8 to 10 .
  • An OP operator visible on the figure 1 , can then pass through corridor 4, then enter airlock 1 and finally room 100. This operator is capable of carrying out, in complete safety, the appropriate tasks within this room.
  • the registers 80 and 82 are closed, which prevents any passage of air, as shown by the crossed out arrows F80 and F82 on the figure 8 . Consequently, we understand that the pressure inside the chamber then tends to decrease. In other words, this chamber is in depression relative to the confined tunnel. When the value of this depression reaches a predetermined threshold, air is admitted into the room from the confined tunnel, via the successive registers 80 82.
  • register 80 there is first of all opening of the register 80 separating the room and the airlock. There is then a passage of air, in a single direction, from the airlock towards the room, which is indicated by the arrow F'80. Then, as shown in Figure 10 , register 82 is then opened, separating the tunnel and the airlock. The air can therefore flow, in a single direction, from the tunnel towards the airlock, which is materialized by arrow F'82. Once these two registers are open, there is therefore an admission of air, in a single direction, from the confined tunnel 4 towards the risk room 100.
  • the predetermined threshold between the internal pressure of the room 100 and the internal pressure of the confined tunnel 4, beyond which there is controlled admission of air into the room, is equal to the sum of the two predefined values V80 and V82, which relate to registers 80 and 82 mounted “in series”. As seen in the above, each of these values is between 5 and 15 Pascal, so that the predetermined threshold above is between 10 and 30 Pascal.
  • a filter at the air inlet between the tunnel and the airlock. This firstly improves the quality of the air entering this airlock. This also eliminates any risk of contaminated air flowing back towards the confined tunnel and the corridor, particularly in the event of shutdown of the mechanical ventilation system and depression of the corridor.
  • registers 80 and 82 are held in their open position. On the other hand, these registers close each time passages 19 and 20 are opened, in the vicinity of which they are located. This helps to minimize the effects of compression and relaxation, which are linked to these opening phases.
  • the invention has numerous advantages over the prior art described in the preamble to the pending description.
  • the containment assembly in accordance with the invention firstly ensures effective protection with respect to the personnel responsible for carrying out operations in the room at risk.
  • the combination between, on the one hand, the suction and filtration of air coming from the room at risk and, on the other hand, the controlled admission of clean air into this same room guarantees particularly high confinement. satisfactory from contamination.
  • the assembly according to the invention benefits from a reduced footprint. Consequently, this allows its installation in small rooms. In addition, this small footprint ensures that medical equipment is preserved, as well as its original function.
  • the assembly according to the invention can lend itself to reversible type implementation. Indeed, once the contamination containment phase has been carried out, the various mechanical elements making up this containment assembly can be dismantled and then extracted from the part to be treated, in a simple manner.
  • the assembly according to the invention can be installed quickly within the room at risk. This is particularly interesting in the case of an epidemic type episode, for which it is necessary to equip a large number of rooms, in order to accommodate a high number of at least potentially contaminated patients.

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Description

Domaine technique de l'inventionTechnical field of the invention

La présente invention concerne le domaine technique du confinement, notamment lors d'interventions dans des pièces dites à risques.The present invention relates to the technical field of confinement, in particular during interventions in so-called high-risk rooms.

Au sens de l'invention ces pièces à risques peuvent être des pièces non encore contaminées, mais qui sont susceptibles de l'être. Cela peut provenir du fait que ces pièces vont, soit accueillir des patients au moins potentiellement contaminés, soit être le lieu d'une activité contaminante au sens notamment de risques nucléaire, radiologique, chimique ou biologique pour l'être humain.For the purposes of the invention, these risky parts may be parts not yet contaminated, but which are likely to be. This may be due to the fact that these rooms will either accommodate patients who are at least potentially contaminated, or be the location of a contaminating activity in the sense in particular of nuclear, radiological, chemical or biological risks for humans.

Ces pièces à risques peuvent également être des pièces d'ores et déjà contaminées, qui accueillent des patients au moins potentiellement contaminés. L'expression « au moins potentiellement contaminés » signifie que les patients concernés sont effectivement contaminés, ou bien présentent des suspicions significatives d'une telle contamination.These high-risk rooms can also be rooms that are already contaminated, which accommodate patients who are at least potentially contaminated. The expression “at least potentially contaminated” means that the patients concerned are actually contaminated, or have significant suspicions of such contamination.

De façon plus précise l'invention concerne tout d'abord un ensemble de confinement, qui est destiné à être installé dans une telle pièce à risques ou bien au voisinage de cette dernière. L'invention concerne également un procédé permettant la mise en oeuvre de cet ensemble, en particulier son installation dans la pièce précitée ou au voisinage de cette dernière.More precisely, the invention firstly concerns a containment assembly, which is intended to be installed in such a risky room or in the vicinity of the latter. The invention also relates to a method allowing the implementation of this assembly, in particular its installation in the aforementioned room or in the vicinity of the latter.

Etat de la techniqueState of the art

Il est bien connu que les diverses opérations, qui sont susceptibles d'être conduites dans des environnements potentiellement contaminés, doivent être réalisées selon des règles strictes de protection. Cela permet par conséquent d'éviter que les personnes, assurant les opérations précitées, ne soient pas victimes de cette contamination. Un tel risque est typiquement susceptible de se produire, lors de soins prodigués à des patients présentant un fort risque contagieux à potentiel épidémique.It is well known that the various operations, which are likely to be carried out in potentially contaminated environments, must be carried out according to strict protection rules. This therefore makes it possible to prevent people carrying out the aforementioned operations from becoming victims of this contamination. Such a risk is typically likely to occur during care provided to patients presenting a high contagious risk with epidemic potential.

Afin de protéger les intervenants, il est connu d'installer des sas de confinement dans les locaux à risques, typiquement les chambres des hôpitaux. On connaît tout d'abord des solutions, faisant appel à une armature rigide sur laquelle repose une toile souple. Ce type de sas de confinement ne se révèle cependant pas satisfaisant, notamment du fait qu'il ne peut pas être adapté facilement aux différentes formes et dimensions des pièces dans lesquelles ils doivent être montés. En outre, le temps total nécessaire pour le montage, l'équipement et le démontage des sas est relativement élevé.In order to protect workers, it is known to install containment airlocks in high-risk premises, typically hospital rooms. First of all, we know of solutions using a rigid frame on which a flexible canvas rests. This type of containment airlock does not, however, prove to be satisfactory, particularly because it does not cannot be easily adapted to the different shapes and dimensions of the rooms in which they must be mounted. In addition, the total time required for the assembly, equipment and dismantling of airlocks is relatively high.

Afin de pallier ces insuffisances, on a proposé de réaliser des sas de confinement utilisant des structures gonflables. On citera notamment les documents WO 2007/102798 , WO 2006/125956 , ainsi que FR 2 963 943 . Ces solutions alternatives ne permettent cependant pas de remédier totalement aux inconvénients des structures rigides, présentées ci-dessus.In order to overcome these shortcomings, it was proposed to create containment airlocks using inflatable structures. We will cite in particular the documents WO 2007/102798 , WO 2006/125956 , as well as FR 2 963 943 . These alternative solutions do not, however, completely remedy the disadvantages of rigid structures presented above.

On a également proposé, dans le document GB 2 104 569 , un ensemble de confinement destiné à équiper une pièce à risques. Cet ensemble comprend un sas équipé de deux passages, associés à deux fermetures, une jupe solidaire du sas qui définit un tunnel confiné débouchant dans l'un de ces passages, ainsi que des moyens d'appui de la jupe sur une cloison de la pièce.It was also proposed, in the document GB 2 104 569 , a containment set intended to equip a risky room. This assembly includes an airlock equipped with two passages, associated with two closures, a skirt secured to the airlock which defines a confined tunnel opening into one of these passages, as well as means for supporting the skirt on a partition of the room .

Enfin on citera d'autres documents, qui sont représentatifs d'un arrière-plan général de l'invention. Il s'agit de US 8 365 804 , FR 2 515 408 , FR 3 005 864 et SE 531 306 .Finally, we will cite other documents, which are representative of a general background of the invention. It is US 8,365,804 , FR 2 515 408 , FR 3 005 864 And SE 531 306 .

Compte tenu de ce qui précède, il existe un besoin de remédier aux limites de l'art antérieur. Il existe plus particulièrement un besoin d'équiper de manière simple et rapide des locaux susceptibles d'être contaminés, notamment des hôpitaux, de manière à leur permettre d'accueillir un grand nombre de patients contaminés. Ce besoin se fait ressentir de façon aiguë, lors de l'apparition de phénomènes épidémiques de grande ampleur, comme dans le cas de la prolifération de virus de type Corona virus.Given the above, there is a need to address the limitations of the prior art. There is more particularly a need to equip premises likely to be contaminated, in particular hospitals, in a simple and rapid manner, so as to enable them to accommodate a large number of contaminated patients. This need is felt acutely, during the appearance of large-scale epidemic phenomena, as in the case of the proliferation of viruses such as Corona virus.

La présente invention a par conséquent pour objectif de répondre à ce besoin.The present invention therefore aims to meet this need.

Elle a également pour objectif de proposer un ensemble de confinement, qui peut être installé de façon simple et rapide dans différents locaux, dont la taille et la géométrie peuvent être variables.It also aims to offer a containment assembly, which can be installed simply and quickly in different premises, the size and geometry of which may vary.

Elle a également pour objectif de proposer un tel ensemble dont le coût de fabrication est raisonnable, de sorte qu'il peut être installé de façon massive dans un même établissement médical.It also aims to offer such an assembly whose manufacturing cost is reasonable, so that it can be installed on a massive scale in the same medical establishment.

Elle a également pour objectif de proposer un tel ensemble, qui empêche de façon satisfaisante la prolifération de la contamination, non seulement depuis une pièce contaminée vers un espace non contaminé, mais également entre des pièces contaminées voisines.It also aims to provide such an assembly, which satisfactorily prevents the proliferation of contamination, not only from a contaminated room to an uncontaminated space, but also between neighboring contaminated rooms.

Objets de l'inventionObjects of the invention

Selon l'invention, au moins un des objectifs ci-dessus est atteint au moyen d'un ensemble de confinement (I) destiné à équiper une pièce à risques (100), afin de permettre des interventions en sécurité dans cette pièce, cet ensemble de confinement comprenant

  • un sas (1) équipé de deux passages (19,20), ainsi que de deux fermetures, notamment de type glissières (17,18) mobiles entre une position de fermeture de chaque passage ainsi qu'une position d'ouverture de chaque passage ;
  • une jupe (3) solidaire du sas, cette jupe définissant un tunnel confiné (4) débouchant dans l'un (20) des deux passages ;
  • des moyens d'appui (42) de la jupe sur une cloison (110) de la pièce, notamment sur la périphérie d'un dormant (120) d'une porte d'accès (122) à cette pièce ;
  • des moyens (5) d'extraction de l'air contaminé, présent dans ladite pièce, à travers une paroi latérale (33) de la jupe, de manière à placer en dépression le volume de la pièce par rapport au tunnel ;
  • des moyens (80,82) d'admission contrôlée d'air dans ladite pièce, qui sont aptes à admettre de l'air dans cette pièce lorsque la valeur de ladite dépression est supérieure à un seuil prédéterminé, notamment compris entre 10 et 30 Pascal.
According to the invention, at least one of the above objectives is achieved by means of a containment assembly (I) intended to equip a risky room (100), in order to allow safe interventions in this room, this assembly containment including
  • an airlock (1) equipped with two passages (19,20), as well as two closures, in particular of the slide type (17,18) movable between a closing position of each passage as well as an opening position of each passage ;
  • a skirt (3) secured to the airlock, this skirt defining a confined tunnel (4) opening into one (20) of the two passages;
  • support means (42) of the skirt on a partition (110) of the room, in particular on the periphery of a frame (120) of an access door (122) to this room;
  • means (5) for extracting the contaminated air, present in said room, through a side wall (33) of the skirt, so as to place the volume of the room in depression relative to the tunnel;
  • means (80,82) for controlled admission of air into said room, which are capable of admitting air into this room when the value of said depression is greater than a predetermined threshold, in particular between 10 and 30 Pascal .

Selon d'autres caractéristiques de l'invention :

  • le sas possède une armature (10) de type gonflable,
  • la jupe est fixée sur le sas par l'intermédiaire de moyens de fixation permanente, notamment par soudure,
  • la jupe et le sas sont réalisés en des matériaux souples, de préférence en un même matériau, par exemple en polychlorure de vinyle (PVC),
  • les moyens d'appui comprennent une couronne (42) s'étendant à la périphérie de l'extrémité de la jupe, opposée au sas,
  • la couronne comprend une âme supérieure (43) ainsi que des ailes latérales (44),
  • la couronne est prolongée par un seuil (47), destiné à assurer l'étanchéité entre le sol et la cloison adjacente (110) de la pièce (100), ce seuil étant avantageusement équipé d'une embase (48) de stabilisation mécanique,
  • les parois latérales de la jupe sont étayées par une tige (46) de soutien mécanique, avantageusement de nature télescopique,
  • les moyens d'extraction comprennent un organe d'extraction (5) placé de façon adjacente à ladite paroi latérale de la jupe, cet organe d'extraction comprenant un raccord d'entrée (52) s'étendant à travers ladite paroi latérale,
  • l'organe d'extraction (5) comprend un corps creux (50), immobilisé contre ladite paroi latérale, de manière à faciliter le transit à l'intérieur du tunnel confiné, notamment pour un lit ou un fauteuil roulant,
  • cet ensemble comprend en outre des moyens (6) d'aspiration, qui sont aptes à coopérer avec les moyens d'extraction (5),
  • les moyens d'extraction (6) comprennent des moyens (64) de filtration d'air, ainsi que des moyens (68) de sortie d'air filtré,
  • les moyens d'admission comprennent au moins un registre (80, 82) chaque registre étant apte à autoriser le passage d'air dans un unique sens, lorsque la différence de pressions de part et d'autre de ce registre est supérieure à une valeur prédéfinie,
  • il est prévu un premier registre (80) monté sur une première paroi du sas, tournée vers la pièce (100), ainsi qu'un second registre (82) monté sur une seconde paroi du sas, tournée vers le tunnel confiné (4),
  • ladite valeur prédéfinie est comprise entre 5 et 15 Pascal,
  • cet ensemble comprend en outre des moyens de filtration supplémentaire, qui sont aptes à filtrer l'air admis dans la pièce à risques (100).
According to other characteristics of the invention:
  • the airlock has an inflatable type frame (10),
  • the skirt is fixed to the airlock by means of permanent fixing means, in particular by welding,
  • the skirt and the airlock are made of flexible materials, preferably of the same material, for example polyvinyl chloride (PVC),
  • the support means comprise a crown (42) extending at the periphery of the end of the skirt, opposite the airlock,
  • the crown comprises an upper core (43) as well as lateral wings (44),
  • the crown is extended by a threshold (47), intended to ensure sealing between the floor and the adjacent partition (110) of the room (100), this threshold being advantageously equipped with a base (48) for mechanical stabilization,
  • the side walls of the skirt are supported by a mechanical support rod (46), advantageously of a telescopic nature,
  • the extraction means comprise an extraction member (5) placed adjacent to said side wall of the skirt, this extraction member comprising an inlet connector (52) extending through said side wall,
  • the extraction member (5) comprises a hollow body (50), immobilized against said side wall, so as to facilitate transit inside the confined tunnel, in particular for a bed or a wheelchair,
  • this assembly further comprises suction means (6), which are able to cooperate with the extraction means (5),
  • the extraction means (6) comprise means (64) of air filtration, as well as means (68) of filtered air outlet,
  • the admission means comprise at least one register (80, 82) each register being able to authorize the passage of air in a single direction, when the pressure difference on either side of this register is greater than a value predefined,
  • there is provided a first register (80) mounted on a first wall of the airlock, facing the room (100), as well as a second register (82) mounted on a second wall of the airlock, facing the confined tunnel (4) ,
  • said predefined value is between 5 and 15 Pascal,
  • this assembly further comprises additional filtration means, which are capable of filtering the air admitted into the room at risk (100).

Ces caractéristiques additionnelles peuvent être mises en oeuvre avec l'objet principal ci-dessus, individuellement ou en combinaisons quelconques, techniquement compatibles.These additional features can be implemented with the main object above, individually or in any technically compatible combinations.

L'invention a également pour objet un procédé de mise en oeuvre de l'ensemble ci-dessus, dans lequel :

  • on place le sas (1) et la jupe (3) dans le volume intérieur de la pièce à risques ;
  • on fixe de manière étanche la jupe sur une cloison de la pièce, en particulier sur une cloison (110) équipée d'une porte (122) d'accès à ladite pièce ;
  • on extrait l'air contaminé présent dans la pièce, en particulier à travers le tunnel confiné (4), de manière à placer en dépression le volume intérieur de la pièce par rapport au tunnel ;
  • on admet de l'air dans cette pièce, lorsque la valeur de ladite dépression est supérieure à un seuil prédéterminé, notamment compris entre 10 et 30 Pascal.
The invention also relates to a method of implementing the above assembly, in which:
  • the airlock (1) and the skirt (3) are placed in the interior volume of the room at risk;
  • the skirt is fixed in a watertight manner on a partition of the room, in particular on a partition (110) equipped with a door (122) for access to said room;
  • the contaminated air present in the room is extracted, in particular through the confined tunnel (4), so as to place the interior volume of the room in depression relative to the tunnel;
  • air is admitted into this room, when the value of said depression is greater than a predetermined threshold, in particular between 10 and 30 Pascal.

Selon d'autres caractéristiques de l'invention :

  • on isole au moins une partie substantielle des cloisons de ladite pièce, avant d'extraire l'air contaminé,
  • on isole les cloisons en les recouvrant au moyen d'un revêtement étanche, notamment de type résine pelable,
  • on recouvre au moins une partie de la périphérie des moyens d'appui avec un adhésif (45), assurant une fonction supplémentaire d'étanchéité.
According to other characteristics of the invention:
  • at least a substantial part of the partitions of said room are isolated, before extracting the contaminated air,
  • the partitions are insulated by covering them with a waterproof coating, in particular of the peelable resin type,
  • at least part of the periphery of the support means is covered with an adhesive (45), providing an additional sealing function.

Ces caractéristiques additionnelles peuvent être mises en oeuvre avec l'objet principal ci-dessus, individuellement ou en combinaisons quelconques, techniquement compatibles.These additional features can be implemented with the main object above, individually or in any technically compatible combinations.

DESCRIPTION DES FIGURESDESCRIPTION OF FIGURES

L'invention va être décrite ci-après, en référence aux dessins annexés, donnés uniquement à titre d'exemples non limitatifs, dans lesquels :

  • [Fig. 1] est une vue en perspective, illustrant un ensemble de confinement selon l'invention, lequel est installé dans une pièce potentiellement contaminée.
  • [Fig. 2] est une vue en perspective, illustrant sous un autre angle et de manière isolée l'ensemble de connexion de la figure 1.
  • [Fig. 3] est une vue de dessus, illustrant l'ensemble de connexion des figures précédentes.
  • [Fig. 4] est une vue de face, illustrant l'ensemble des figures précédentes, vu depuis l'intérieur de la pièce.
  • [Fig. 5] est une vue de face illustrant l'ensemble des figures précédentes, vu depuis l'extérieur de la pièce.
  • [Fig. 6] est une vue de face illustrant l'ensemble des figures précédentes, vu depuis un premier côté de la pièce.
  • [Fig. 7] est une vue de face illustrant l'ensemble des figures précédentes, vu depuis un côté opposé de la pièce.
  • [Fig. 8] est une vue en perspective, illustrant à plus grande échelle un organe d'extraction appartenant à l'ensemble conforme à l'invention.
  • [Fig. 9] est une vue schématique, illustrant les différents flux d'air lors d'une première phase de mise en oeuvre de l'ensemble conforme à l'invention.
  • [Fig. 10] est une vue schématique, analogue à la figure 9, illustrant les différents flux d'air lors d'une seconde phase de mise en oeuvre de l'ensemble conforme à l'invention.
The invention will be described below, with reference to the appended drawings, given solely by way of non-limiting examples, in which:
  • [ Fig. 1 ] is a perspective view, illustrating a containment assembly according to the invention, which is installed in a potentially contaminated room.
  • [ Fig. 2 ] is a perspective view, illustrating from another angle and in isolation the connection assembly of the figure 1 .
  • [ Fig. 3 ] is a top view, illustrating the connection assembly of the previous figures.
  • [ Fig. 4 ] is a front view, illustrating all of the previous figures, seen from inside the room.
  • [ Fig. 5 ] is a front view illustrating all of the previous figures, seen from outside the room.
  • [ Fig. 6 ] is a front view illustrating all of the preceding figures, seen from a first side of the part.
  • [ Fig. 7 ] is a front view illustrating all of the previous figures, seen from an opposite side of the room.
  • [ Fig. 8 ] is a perspective view, illustrating on a larger scale an extraction member belonging to the assembly according to the invention.
  • [ Fig. 9 ] is a schematic view, illustrating the different air flows during a first phase of implementation of the assembly according to the invention.
  • [ Fig. 10 ] is a schematic view, analogous to the Figure 9 , illustrating the different air flows during a second phase of implementation of the assembly according to the invention.

Les repères suivants sont utilisés dans la présente description

  • 100 pièce
  • 102 plancher
  • 104 plafond
  • 106 cloison vitrée
  • 108 cloison borgne
  • 110 cloison de communication
  • 111 face arrière de la cloison 110
  • 120 dormant
  • 122 porte
  • 124 lit
  • I ensemble de confinement
  • 1 sas
  • 10 armature
  • 11,12 parois inférieures et supérieures
  • 13,14 parois latérales
  • 15,16 parois avant et arrière
  • 17,18 glissières
  • 19,20 passages
  • 3 jupe
  • 31 32 parois inférieures et supérieures
  • 33 34 parois latérales
  • 4 tunnel
  • 42 couronne
  • 43 âme
  • 44 ailes latérales
  • 45 adhésif
  • 46 tige
  • 47 seuil
  • 48 embase
  • 5 organe d'extraction
  • 50 corps creux
  • 52 raccord d'entrée
  • 54 raccord de sortie
  • 56 traits pointillés représentant la tubulure
  • 6 unité d'aspiration
  • 60 plénum de raccordement
  • 62 raccord d'admission
  • 64 filtre
  • 66 ventilateur
  • 68 moyens de sortie d'air filtré
  • 70 commande
  • 72 jauges
  • 80 82 registres
The following references are used in this description
  • 100 piece
  • 102 floor
  • 104 ceiling
  • 106 glass partition
  • 108 blind partition
  • 110 communication partition
  • 111 rear face of partition 110
  • 120 sleeping
  • 122 door
  • 124 bed
  • I containment set
  • 1 airlock
  • 10 frame
  • 11.12 lower and upper walls
  • 13.14 side walls
  • 15.16 front and rear walls
  • 17.18 slides
  • 19.20 passes
  • 3 skirt
  • 31 32 lower and upper walls
  • 33 34 side walls
  • 4 tunnel
  • 42 crown
  • 43 soul
  • 44 side wings
  • 45 adhesive
  • 46 rod
  • 47 threshold
  • 48 base
  • 5 extraction organ
  • 50 hollow bodies
  • 52 inlet connection
  • 54 outlet connection
  • 56 dotted lines representing the tubing
  • 6 suction unit
  • 60 connection plenum
  • 62 inlet fitting
  • 64 filter
  • 66 fan
  • 68 means of filtered air outlet
  • 70 order
  • 72 gauges
  • 80 82 registers

Description détailléedetailed description

Comme le montre la figure 1, l'ensemble de confinement selon l'invention, qui est désigné dans sa globalité par la référence I, est destiné à équiper une pièce contaminée ou susceptible d'être contaminé. Dans l'exemple illustré cette pièce 100 est une chambre d'un hôpital. Néanmoins, l'ensemble selon l'invention peut équiper d'autres types de pièces à risques, au sens de la définition donnée dans la partie introductive de la présente description. Ces pièces à risques peuvent en particulier être constituées par des locaux conventionnels, tels que des bureaux ou des salles de classe. De tels locaux seront utilisés pour accueillir des patients au moins potentiellement contaminés, en étant par conséquent détournés de leur usage habituel.As shown in the figure 1 , the containment assembly according to the invention, which is designated in its entirety by the reference I, is intended to equip a room that is contaminated or likely to be contaminated. In the example illustrated, this room 100 is a room in a hospital. However, the assembly according to the invention can be fitted to other types of risky parts, within the meaning of the definition given in the introductory part of this description. These risky rooms may in particular consist of conventional premises, such as offices or classrooms. Such premises will be used to accommodate at least potentially contaminated patients, therefore being diverted from their usual use.

Cette chambre 100 comprend de façon connue en soi un plancher 102, un plafond 104, une cloison vitrée 106 ainsi que des cloisons borgnes, dont une seule 108 est représentée sur la figure. Par ailleurs une cloison 110 permet la communication entre cette chambre 100 et le couloir 130. À cet effet cette cloison est creusée d'une ouverture, à la périphérie de laquelle s'étend un dormant 120, permettant l'articulation d'une porte d'entrée 122. La chambre 100 est par ailleurs équipée de différents dispositifs médicaux de type classique, qui ne seront pas décrits plus en détail dans ce qui suit, comme notamment un lit 124.This room 100 comprises in a manner known per se a floor 102, a ceiling 104, a glass partition 106 as well as blind partitions, only one of which 108 is shown in the figure. Furthermore, a partition 110 allows communication between this room 100 and the corridor 130. For this purpose this partition is hollowed out with an opening, at the periphery of which a frame 120 extends, allowing the articulation of a door of entrance 122. Room 100 is also equipped with various medical devices of conventional type, which will not be described in more detail in what follows, such as in particular a bed 124.

L'ensemble de confinement I selon l'invention comprend tout d'abord un sas 1, qui comporte une armature 10. Cette dernière, qui est de tout type connu en soi, est avantageusement de type gonflable. Cette armature 10 supporte différentes parois du sas, à savoir tout d'abord une paroi inférieure 11 et une paroi supérieure 12, ainsi que des parois latérales opposées 13 et 14. On note également 15 la paroi dite arrière du sas, qui est tournée vers le couloir 130, ainsi que 16 la paroi avant de ce sas.The confinement assembly I according to the invention firstly comprises an airlock 1, which comprises a frame 10. The latter, which is of any type known per se, is advantageously of the inflatable type. This frame 10 supports different walls of the airlock, namely first of all a lower wall 11 and an upper wall 12, as well as opposite side walls 13 and 14. We also note 15 the so-called rear wall of the airlock, which faces towards the corridor 130, as well as 16 the front wall of this airlock.

De manière habituelle, les parois opposées 15 et 16 sont munies de glissières respectives 17 et 18, par exemple de type fermeture éclair. Dans leur position de fermeture, ces glissières 17 et 18 délimitent un volume intérieur fermé V1 du sas, qui est étanche. Par ailleurs, dans leur position d'ouverture, ces glissières 17 et 18 définissent des passages 19 et 20, permettant un utilisateur de transiter au travers des parois précitées 15 et 16.Usually, the opposite walls 15 and 16 are provided with respective slides 17 and 18, for example of the zipper type. In their closed position, these slides 17 and 18 delimit a closed interior volume V1 of the airlock, which is waterproof. Furthermore, in their open position, these slides 17 and 18 define passages 19 and 20, allowing a user to pass through the aforementioned walls 15 and 16.

Le sas 1 est réalisé en tout matériau approprié, avantageusement traité en vue d'une protection à l'égard du feu. De façon avantageuse, le matériau constitutif du sas est de nature souple, ce qui permet une adaptation aisée de l'ensemble de confinement selon l'invention à des pièces de géométries différentes. À titre d'exemples non limitatifs, on pourra utiliser du polychlorure de vinyle (PVC) d'une épaisseur voisine de 0,3 à 0,5 millimètres.The airlock 1 is made of any suitable material, advantageously treated for protection against fire. Advantageously, the material constituting the airlock is of a flexible nature, which allows easy adaptation of the confinement assembly according to the invention to parts of different geometries. As non-limiting examples, polyvinyl chloride (PVC) with a thickness of around 0.3 to 0.5 millimeters can be used.

L'ensemble de confinement I comporte en outre une jupe, désignée dans son ensemble par la référence 3. Cette jupe est fixée par tous moyens appropriés, avantageusement par soudure, au niveau de la paroi arrière 15 du sas. Cette jupe délimite un tunnel 4, lequel est bordé par des parois respectivement inférieure 31, supérieure 32 et latérales opposées 33 et 34. Ce tunnel est ouvert selon deux sens opposés, à la fois vers l'avant en direction de la paroi 15 et vers l'arrière en direction du couloir principal 130.The confinement assembly I further comprises a skirt, designated as a whole by the reference 3. This skirt is fixed by any appropriate means, advantageously by welding, at the level of the rear wall 15 of the airlock. This skirt delimits a tunnel 4, which is bordered by respectively lower 31, upper 32 and opposite side walls 33 and 34. This tunnel is open in two opposite directions, both forwards towards the wall 15 and towards the rear towards the main corridor 130.

De façon avantageuse, le matériau constitutif de la jupe 3 est identique à celui du sas 1. Par ailleurs, également de façon avantageuse, la jupe est de nature souple. En référence à la figure 2 cela signifie que, de manière typique, cette jupe dispose d'une possibilité de débattement significative en rotation selon deux sens opposés, par rapport à l'axe longitudinal X1 de l'ensemble de confinement.Advantageously, the material constituting the skirt 3 is identical to that of the airlock 1. Furthermore, also advantageously, the skirt is of a flexible nature. In reference to the figure 2 this means that, typically, this skirt has a possibility of significant rotational movement in two opposite directions, relative to the longitudinal axis X1 of the confinement assembly.

Au niveau de son extrémité arrière, la jupe 3 est munie d'une couronne 42, destinée à être plaquée contre la face arrière 111 de la cloison 110, à la périphérie du dormant 120. Cette couronne 42, qui présente une forme globale de U, possède une âme supérieure 43, ainsi que des ailes latérales 44. La périphérie externe de cette âme et de ces ailes est bordée par un encadrement, qui est destiné à recevoir un adhésif 45. Ce dernier permet tout d'abord d'assurer un appui fiable de la couronne, tout en garantissant l'étanchéité. À cet effet cet adhésif 45 est avantageusement réalisé sous forme d'une bande adhésive, renforcée par des fibres. À titre indicatif on citera l'utilisation d'un ruban de type TARLATANE ®. Par ailleurs il est prévu une tige 46, avantageusement de nature télescopique, qui assure une fonction d'étai mécanique entre les parois latérales 33 et 34 de la jupe.At its rear end, the skirt 3 is provided with a crown 42, intended to be pressed against the rear face 111 of the partition 110, at the periphery of the frame 120. This crown 42, which has an overall U shape , has an upper core 43, as well as lateral wings 44. The external periphery of this core and these wings is bordered by a frame, which is intended to receive an adhesive 45. The latter firstly ensures a reliable support of the crown, while guaranteeing watertightness. For this purpose, this adhesive 45 is advantageously produced in the form of an adhesive strip, reinforced by fibers. As an indication, we will cite the use of a TARLATANE ® type ribbon. Furthermore, a rod 46 is provided, advantageously of a nature telescopic, which provides a mechanical prop function between the side walls 33 and 34 of the skirt.

La couronne 42 possède en outre un rabat 47, qui forme en service un seuil horizontal assurant l'étanchéité au niveau de l'interface entre la cloison et le sol. Ce seuil 47 prolonge par conséquent, vers l'arrière, à la fois la paroi inférieure 31 et les ailes 44. De façon avantageuse, ce seuil 47 comprend notamment une embase 48, réalisée sous forme d'une plaque massive en un matériau rigide et dense, typiquement en acier inoxydable dont l'épaisseur est par exemple de 5 mm. Cette embase 48 assure, en coopération avec la tige de soutien 46, une stabilisation mécanique satisfaisante de la jupe 3.The crown 42 also has a flap 47, which in use forms a horizontal threshold ensuring sealing at the interface between the partition and the floor. This threshold 47 therefore extends, towards the rear, both the lower wall 31 and the wings 44. Advantageously, this threshold 47 comprises in particular a base 48, produced in the form of a massive plate of a rigid material and dense, typically made of stainless steel whose thickness is for example 5 mm. This base 48 ensures, in cooperation with the support rod 46, satisfactory mechanical stabilization of the skirt 3.

L'ensemble de confinement selon l'invention comprend en outre un organe d'extraction, désigné dans son ensemble par la référence 5. Ce dernier se compose tout d'abord d'un corps creux 50, de forme globalement parallélépipédique. Ce corps creux est alimenté en air par un raccord d'entrée 52, qui est introduit dans un orifice 36 ménagé dans l'une des parois latérales de la jupe 3. Des moyens non représentés, de tout type connu, assurent l'étanchéité entre les parois en regard de cet orifice 36 et de ce raccord 52. Par ailleurs ce corps creux alimente en air un raccord de sortie 54, qui est en communication avec une unité 6 d'aspiration et de filtration, qui va être décrite ci-après.The confinement assembly according to the invention further comprises an extraction member, designated as a whole by the reference 5. The latter consists first of all of a hollow body 50, of generally parallelepiped shape. This hollow body is supplied with air by an inlet connector 52, which is introduced into an orifice 36 made in one of the side walls of the skirt 3. Means not shown, of any known type, ensure the seal between the walls facing this orifice 36 and this connection 52. Furthermore, this hollow body supplies air to an outlet connection 54, which is in communication with a suction and filtration unit 6, which will be described below .

Comme cela est montré sur les figures, le corps creux 50 présente un faible encombrement, selon la direction transversale Y1 de l'ensemble de confinement. Par conséquent, et également grâce à son caractère rigide, ce corps creux autorise un transit aisé dans le tunnel confiné, par exemple pour un lit ou un fauteuil roulant. On notera en outre que ce corps creux peut remplir une fonction supplémentaire, à savoir permettre le passage d'outils de mesure ou de prélèvement.As shown in the figures, the hollow body 50 has a small footprint, in the transverse direction Y1 of the confinement assembly. Consequently, and also thanks to its rigid nature, this hollow body allows easy transit in the confined tunnel, for example for a bed or a wheelchair. It should also be noted that this hollow body can fulfill an additional function, namely allowing the passage of measuring or sampling tools.

L'unité 6 comporte tout d'abord un plénum de raccordement 60, qui est équipé d'un raccord d'admission 62. Ce dernier est susceptible d'être mis en communication avec le raccord de sortie 54 de l'organe d'extraction, typiquement par une tubulure qui n'est pas représentée sur les figures mais dont le trajet est matérialisé par des traits pointillés 56. Ce plénum de raccordement 60 est placé à côté d'un filtre 64, de tout type approprié, lui-même adjacent à un ou plusieurs ventilateurs d'aspiration, non représentés sur les figures mais matérialisées par les traits pointillés 66.The unit 6 firstly comprises a connection plenum 60, which is equipped with an inlet connection 62. The latter can be placed in communication with the outlet connection 54 of the extraction member , typically by a tube which is not shown in the figures but whose path is marked by dotted lines 56. This connection plenum 60 is placed next to a filter 64, of any suitable type, itself adjacent with one or more suction fans, not shown in the figures but shown by the dotted lines 66.

Ces ventilateurs permettent la sortie d'air hors de l'unité 6, par l'intermédiaire de moyens de sortie. Dans l'exemple illustré, ces moyens sont formés par grille de sortie du ventilateur, laquelle est affectée de la référence 68. À titre de variante non représentée, on peut prévoir de réaliser des orifices dédiés à cette fonction de sortie. Cette unité 6 est également munie d'une commande 70, de tout type approprié, qui ne sera pas décrite plus en détail dans ce qui suit. Comme le montre notamment la figure 6, cette commande est 2 moyens équipée de jauges 72. Ces dernières permettent d'afficher la valeur des cascades de pression entre, d'une part, le couloir propre 120 et le sas 1 est, d'autre part, entre ce sas et la chambre 100.These fans allow air to escape from unit 6, via outlet means. In the example illustrated, these means are formed by a fan outlet grille, which is assigned the reference 68. As a variant not shown, it is possible to provide orifices dedicated to this output function. This unit 6 is also provided with a control 70, of any suitable type, which will not be described in more detail in the following. As shown in particular by Figure 6 , this control is 2 means equipped with gauges 72. The latter make it possible to display the value of the pressure cascades between, on the one hand, the clean corridor 120 and the airlock 1 is, on the other hand, between this airlock and the room 100.

L'ensemble de confinement selon l'invention est enfin muni de moyens, permettant une admission contrôlée d'air dans l'intérieur de la pièce 100. À cet effet il est prévu deux registres 80 et 82, dont les structures sont identiques. Ces registres sont intégrés aux parois respectivement avant et arrière du sas. De façon connue en soi, chaque registre est mobile entre une position de fermeture, dans laquelle il interdit le passage d'air entre les espaces qu'il délimite, ainsi qu'une position d'ouverture dans laquelle il autorise ce passage d'air dans un unique sens prédéfini. Par conséquent, dans le cas de la présente invention, chaque registre interdit tout d'abord le passage d'air dans le sens non désiré, depuis la chambre vers le sas, ainsi que depuis le sas vers le tunnel confiné. Par ailleurs, chaque registre permet le passage d'air, selon cet unique sens choisi, uniquement lorsque la pression nominale prédéfinie est atteinte.The confinement assembly according to the invention is finally provided with means, allowing a controlled admission of air into the interior of the room 100. For this purpose, two registers 80 and 82 are provided, the structures of which are identical. These registers are integrated into the front and rear walls respectively of the airlock. In a manner known per se, each register is movable between a closed position, in which it prohibits the passage of air between the spaces which it delimits, as well as an open position in which it authorizes this passage of air. in a single predefined direction. Consequently, in the case of the present invention, each register firstly prohibits the passage of air in the unwanted direction, from the chamber towards the airlock, as well as from the airlock towards the confined tunnel. Furthermore, each register allows the passage of air, in this single chosen direction, only when the predefined nominal pressure is reached.

Dans le présent mode de réalisation, les registres 80 et 82 possèdent une valeur nominale prédéfinie. En d'autres termes, ils autorisent le passage d'air uniquement au-delà d'une différence de pressions prédéfinie. À titre de variante, on peut prévoir d'utiliser des registres, également de type connu en soi, pour lesquelles la valeur nominale est réglable. Les valeurs nominales V 80 ainsi que V 82 de ces registres sont typiquement égales. À titre d'exemples non limitatifs, chacune de ces valeurs nominales est comprise entre 5 et 15 Pascal.In the present embodiment, registers 80 and 82 have a predefined nominal value. In other words, they allow the passage of air only beyond a predefined pressure difference. As a variant, it is possible to use registers, also of a type known per se, for which the nominal value is adjustable. The nominal values V 80 as well as V 82 of these registers are typically equal. As non-limiting examples, each of these nominal values is between 5 and 15 Pascal.

Un exemple de mise en oeuvre de l'ensemble de confinement I, conforme à l'invention, va maintenant être décrit.An example of implementation of the confinement assembly I, in accordance with the invention, will now be described.

De manière préférée, il s'agit tout d'abord de rendre étanche le volume intérieur de la chambre 100. À cet effet, on utilise avantageusement un revêtement, de type résine pelable. Cette résine est appliquée au niveau des zones des cloisons, susceptibles de favoriser un transit d'air avec l'extérieur. Ce transit extérieur peut s'opérer, non seulement en direction du couloir, mais également en direction des chambres adjacentes.Preferably, it is first of all a matter of sealing the interior volume of the chamber 100. For this purpose, a coating of the peelable resin type is advantageously used. This resin is applied to the areas of the partitions, likely to promote air transit with the outside. This exterior transit can take place not only in the direction of the corridor, but also in the direction of adjacent rooms.

Il s'agit ensuite, après avoir ouvert la porte 122, de mettre en place le sas gonflable dans la pièce, à l'endroit approprié. L'armature du sas est ensuite gonflée, de façon classique. Puis la jupe est déployée en direction du dormant de la porte, la couronne étant appliquée contre la face externe de la cloison 110, comme décrit ci-dessus. En outre, l'adhésif 45 est mis en place. On notera que, dans l'exemple illustré notamment en référence à la figure 1, la porte d'entrée s'ouvre vers l'intérieur de la pièce, selon une rotation vers la gauche. Il est à noter que l'invention trouve également son application à une porte d'entrée montée pivotante vers la droite, mais également à une porte d'entrée qui s'ouvre en direction du couloir, à savoir l'opposé de la pièce.It is then a question, after opening the door 122, of setting up the inflatable airlock in the room, in the appropriate place. The airlock frame is then inflated in the classic manner. Then the skirt is deployed towards the door frame, the crown being applied against the external face of the partition 110, as described above. In addition, the adhesive 45 is put in place. It will be noted that, in the example illustrated in particular with reference to the figure 1 , the front door opens towards the inside of the room, rotating to the left. It should be noted that the invention also finds its application to an entrance door mounted to pivot to the right, but also to an entrance door which opens towards the corridor, namely the opposite of the room.

Une fois que le revêtement d'étanchéité est sec, et que les différents éléments mécaniques sont mis en place, on met en marche l'unité 6. Par conséquent, de l'air est extrait en direction de cette unité 6, par l'intermédiaire de l'organe d'extraction 5, ce qui est matérialisé par les flèches successives F5 et F6 sur les figures 8 à 10. Cet air se trouve filtré, puis renvoyé dans le couloir au niveau des moyens de sortie 68, ce qui est matérialisé par les flèches F 68 sur ces figures 8 à 10. Un opérateur OP, visible sur la figure 1, peut alors transiter par le couloir 4, puis pénétrer dans le sas 1 et enfin la chambre 100. Cet opérateur est susceptible de mettre en oeuvre, en toute sécurité, les taches appropriées au sein de cette pièce.Once the sealing coating is dry, and the various mechanical elements are in place, unit 6 is started. Consequently, air is extracted towards this unit 6, by the intermediate of the extraction member 5, which is materialized by the successive arrows F5 and F6 on the figures 8 to 10 . This air is filtered, then returned to the corridor at the level of the exit means 68, which is indicated by the arrows F 68 on these figures 8 to 10 . An OP operator, visible on the figure 1 , can then pass through corridor 4, then enter airlock 1 and finally room 100. This operator is capable of carrying out, in complete safety, the appropriate tasks within this room.

Au début de la phase d'aspiration mentionnée ci-dessus, les registres 80 et 82 sont fermés, ce qui empêche tout passage d'air, comme cela est matérialisé par les flèches barrées F80 et F82 sur la figure 8. Par conséquent, on conçoit que la pression à l'intérieur de la chambre a alors tendance à diminuer. En d'autres termes, cette chambre se trouve en dépression par rapport au tunnel confiné. Lorsque la valeur de cette dépression atteint un seuil prédéterminé, de l'air est admis dans la pièce à partir du tunnel confiné, via les registres successifs 80 82.At the start of the suction phase mentioned above, the registers 80 and 82 are closed, which prevents any passage of air, as shown by the crossed out arrows F80 and F82 on the figure 8 . Consequently, we understand that the pressure inside the chamber then tends to decrease. In other words, this chamber is in depression relative to the confined tunnel. When the value of this depression reaches a predetermined threshold, air is admitted into the room from the confined tunnel, via the successive registers 80 82.

De façon plus précise, comme le montre la figure 9, il y a tout d'abord ouverture du registre 80 séparant la pièce et le sas. Il se produit alors un passage d'air, dans un unique sens, depuis le sas vers la pièce, ce qui est matérialisé par la flèche F'80. Puis, comme le montre la figure 10, il y a ensuite ouverture du registre 82 séparant le tunnel et le sas. L'air peut donc s'écouler, dans un unique sens, depuis le tunnel vers le sas, ce qui est matérialisé par la flèche F'82. Une fois que ces deux registres sont ouverts, il y a donc admission d'air, selon un unique sens, depuis le tunnel confiné 4 vers la pièce à risques 100.More precisely, as shown in Figure 9 , there is first of all opening of the register 80 separating the room and the airlock. There is then a passage of air, in a single direction, from the airlock towards the room, which is indicated by the arrow F'80. Then, as shown in Figure 10 , register 82 is then opened, separating the tunnel and the airlock. The air can therefore flow, in a single direction, from the tunnel towards the airlock, which is materialized by arrow F'82. Once these two registers are open, there is therefore an admission of air, in a single direction, from the confined tunnel 4 towards the risk room 100.

Le seuil prédéterminé entre la pression interne de la pièce 100 et la pression interne du tunnel confiné 4, au-delà duquel il y a admission contrôlée d'air dans la pièce, est égal à la somme des deux valeurs prédéfinies V80 et V82, qui sont relatives aux registres 80 et 82 montés « en série ». Comme on l'a vu dans ce qui précède, chacune de ces valeurs est comprise entre 5 et 15 Pascal, de sorte que le seuil prédéterminé ci-dessus est compris entre 10 et 30 Pascal.The predetermined threshold between the internal pressure of the room 100 and the internal pressure of the confined tunnel 4, beyond which there is controlled admission of air into the room, is equal to the sum of the two predefined values V80 and V82, which relate to registers 80 and 82 mounted “in series”. As seen in the above, each of these values is between 5 and 15 Pascal, so that the predetermined threshold above is between 10 and 30 Pascal.

À titre de variante non représentée, on peut avantageusement prévoir d'intégrer un filtre au niveau de l'entrée d'air entre le tunnel et le sas. Cela permet tout d'abord d'améliorer la qualité de l'air entrant dans ce sas. Cela permet également de s'affranchir de tout risque de reflux d'air contaminé en direction du tunnel confiné et du couloir, notamment en cas d'arrêt du système de ventilation mécanique et de mise en dépression du couloir.As a variant not shown, it is advantageous to integrate a filter at the air inlet between the tunnel and the airlock. This firstly improves the quality of the air entering this airlock. This also eliminates any risk of contaminated air flowing back towards the confined tunnel and the corridor, particularly in the event of shutdown of the mechanical ventilation system and depression of the corridor.

Une fois que le système a atteint son équilibre, les registres 80 et 82 sont maintenus dans leur position ouverte. En revanche, ces registres se referment à chaque ouverture des passages 19 et 20, au voisinage duquel ils sont situés. Cela contribue à minimiser les effets de compression et de détente, qui sont liés à ces phases d'ouverture.Once the system has reached its equilibrium, registers 80 and 82 are held in their open position. On the other hand, these registers close each time passages 19 and 20 are opened, in the vicinity of which they are located. This helps to minimize the effects of compression and relaxation, which are linked to these opening phases.

L'invention présente de nombreux avantages, vis-à-vis de l'art antérieur décrit dans le préambule de la description en instance.The invention has numerous advantages over the prior art described in the preamble to the pending description.

L'ensemble de confinement conforme à l'invention assure tout d'abord une protection efficace, vis-à-vis du personnel chargé de mener à bien des opérations dans la pièce à risques. En effet la combinaison entre, d'une part, l'aspiration et la filtration d'air provenant de la pièce à risques et, d'autre part, l'admission contrôlée d'air propre dans cette même pièce, garantit un confinement particulièrement satisfaisant de la contamination.The containment assembly in accordance with the invention firstly ensures effective protection with respect to the personnel responsible for carrying out operations in the room at risk. In fact, the combination between, on the one hand, the suction and filtration of air coming from the room at risk and, on the other hand, the controlled admission of clean air into this same room, guarantees particularly high confinement. satisfactory from contamination.

Par ailleurs, l'ensemble selon l'invention bénéficie d'une emprise au sol réduite. Par conséquent, cela permet son installation au sein de pièces de petite dimension. De plus, ce faible encombrement assure une conservation des équipements médicaux, ainsi que de leur fonction originelle.Furthermore, the assembly according to the invention benefits from a reduced footprint. Consequently, this allows its installation in small rooms. In addition, this small footprint ensures that medical equipment is preserved, as well as its original function.

On notera en outre que l'ensemble conforme à l'invention peut se prêter à une mise en oeuvre de type réversible. En effet, une fois que la phase de confinement de la contamination a été réalisée, les différents éléments mécaniques composant cet ensemble de confinement peuvent être démontés puis extraits de la pièce à traiter, de manière simple.It will also be noted that the assembly according to the invention can lend itself to reversible type implementation. Indeed, once the contamination containment phase has been carried out, the various mechanical elements making up this containment assembly can be dismantled and then extracted from the part to be treated, in a simple manner.

En outre, l'ensemble selon l'invention peut être installé de façon rapide au sein de la pièce à risques. Cela est tout particulièrement intéressant dans le cas d'un épisode de type épidémique, pour lequel il est nécessaire d'équiper un grand nombre de pièces, afin d'accueillir un nombre élevé de patients au moins potentiellement contaminés.In addition, the assembly according to the invention can be installed quickly within the room at risk. This is particularly interesting in the case of an epidemic type episode, for which it is necessary to equip a large number of rooms, in order to accommodate a high number of at least potentially contaminated patients.

Le fait d'utiliser deux registres, d'une part entre le tunnel et le sas, d'autre part entre le sas et la pièce à risques, présente des avantages spécifiques. En effet cela permet d'éviter tout risque de remontée de contamination, notamment au travers du sas.The fact of using two registers, on the one hand between the tunnel and the airlock, and on the other hand between the airlock and the risk room, presents specific advantages. In fact, this makes it possible to avoid any risk of contamination rising, particularly through the airlock.

Le fait d'utiliser une couronne d'appui, dont la section transversale supérieure à celle du débouché du tunnel, présente également des avantages spécifiques. En effet, cela confère une possibilité d'adaptation à des portes d'entrée de tailles différentes. En substance, l'invention pourra trouver son application à toute porte d'entrée, dont la section est comprise entre celle du tunnel et celle de la couronne d'appui.The fact of using a support crown, whose cross section is greater than that of the tunnel outlet, also presents specific advantages. Indeed, this gives the possibility of adaptation to entrance doors of different sizes. In essence, the invention could find application to any entrance door, the section of which is between that of the tunnel and that of the support crown.

Claims (15)

  1. A containment assembly (I) intended to equip a risky room (100), in order to allow safe interventions in this room, this containment assembly comprising
    • an airlock (1) equipped with two passages (19, 20), as well as two closures, in particular of the slide type (17, 18), movable between a closing position of each passage as well as an opening position of each passage;
    • a skirt (3) secured to the airlock, this skirt defining a contained tunnel (4) emerging into one (20) of the two passages;
    • bearing means (42) of the skirt on a partition (110) of the room, in particular on the periphery of a frame (120) of an access door (122) to this room; this assembly being characterized in that it further comprises
    • means (5) for extracting contaminated air, present in said room, through a lateral wall (33) of the skirt, so as to place the volume of the room in depression relative to the tunnel;
    • means (80, 82) for controlled admission of air into said room, which are capable of admitting air into this room when the value of said depression is greater than a predetermined threshold.
  2. The assembly according to the preceding claim, wherein the airlock has an armature (10) of inflatable type.
  3. The assembly according to any of the preceding claims, wherein the skirt is fastened to the airlock through permanent fastening means, in particular by welding.
  4. The assembly according to any of the preceding claims, wherein the skirt and the airlock are made of flexible materials, preferably of the same material, for example of polyvinyl chloride (PVC).
  5. The assembly according to any one of the preceding claims, wherein the bearing means comprise a crown (42) extending at the periphery of the end of the skirt, opposite the airlock, the crown comprising in particular an upper core (43) as well as lateral wings (44).
  6. The assembly according to claim 5, wherein the crown is prolonged by a threshold (47), intended to ensure sealing between the floor and the adjacent partition (110) of the room (100), this threshold being advantageously equipped with a base (48) for mechanical stabilization.
  7. The assembly according to any one of the preceding claims, wherein the lateral walls of the skirt are braced by a mechanical support rod (46), advantageously of a telescopic nature.
  8. The assembly according to any one of the preceding claims, wherein the extraction means comprise an extraction member (5) placed adjacent to said lateral wall of the skirt, this extraction member comprising a inlet connector (52) extending through said lateral wall, the extraction member (5) comprising in particular a hollow body (50), immobilized against said lateral wall, so as to facilitate transit inside the contained tunnel, especially for a bed or a wheelchair.
  9. The assembly according to any one of the preceding claims, further comprising suction means (6), which are capable of cooperating with the extraction means (5), the extraction means (6) comprising in particular air filtration means (64), as well as filtered air outlet means (68).
  10. The assembly according to any one of the preceding claims, wherein the admission means comprise at least one register (80, 82) each register being capable of authorizing the passage of air in a single direction, when the pressure difference on either side of this register is greater than a predefined value, wherein there is advantageously provided a first register (80) mounted on a first wall of the airlock, facing the room (100), as well as advantageously a second register (82) mounted on a second wall of the airlock, facing the contained tunnel (4), said predefined value being in particular comprised between 5 and 15 Pascal.
  11. The assembly according to any one of the preceding claims, comprising additional filtration means, which are capable of filtering the air admitted into the risky room (100).
  12. A method for implementing the assembly according to any one of the preceding claims, wherein
    • the airlock (1) and the skirt (3) are placed in the interior volume of the risky room;
    • the skirt is sealably fastened on a partition of the room, in particular on a partition (110) equipped with a door (122) for access to said room;
    • the contaminated air present in the room is extracted, in particular through the contained tunnel (4), so as to place the interior volume of the room in depression relative to the tunnel;
    • air is admitted into this room, when the value of said depression is greater than a predetermined threshold.
  13. The method according to the preceding claim, wherein at least a substantial part of the partitions of said room is insulated, before extracting the contaminated air.
  14. The method according to the preceding claim, wherein the partitions are insulated by covering them with a waterproof coating, in particular of the peelable resin type.
  15. The method according to any of claims 12 to 14, wherein at least part of the periphery of the bearing means is covered with an adhesive (45), ensuring an additional sealing function.
EP21704328.0A 2020-02-10 2021-02-08 Confinement assembly intended to be installed in a high-risk room, and method for implementing same Active EP4103797B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2001295A FR3107073B1 (en) 2020-02-10 2020-02-10 Containment assembly intended to be installed in a room at risk, and its method of implementation
PCT/IB2021/050984 WO2021161144A1 (en) 2020-02-10 2021-02-08 Confinement assembly intended to be installed in a high-risk room, and method for implementing same

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EP4103797A1 EP4103797A1 (en) 2022-12-21
EP4103797B1 true EP4103797B1 (en) 2024-06-26
EP4103797C0 EP4103797C0 (en) 2024-06-26

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EP3912649B1 (en) * 2020-05-19 2023-10-25 SEIWO Technik GmbH Modular protective area and pass-through for same
CN112237521B (en) * 2020-10-11 2022-06-03 李星 Assembled negative pressure isolation cabin

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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GB2104569B (en) * 1981-08-27 1985-04-03 Secr Defence Inflatable temporary cabin
FR2515408A1 (en) * 1981-10-22 1983-04-29 Delta Protection Modular and collapsible airlock tent - made of polymer sheets and inflatable polymer tubes, and used on zones exposed to biological or radioactive contamination
SE531306C2 (en) * 2003-12-19 2009-02-17 Yit Building Systems As Methods and systems to minimize airtime in air locks in air center insulators
TW200640511A (en) 2005-01-12 2006-12-01 Steris Inc Integrated decontamination system
EP1885974A1 (en) 2005-05-27 2008-02-13 Ralph Ellerker (1795) Ltd Extendible building structure
FR2963943B1 (en) 2010-08-22 2013-05-31 Sperian Prot Clothing SAS CONFINEMENT
US8365804B1 (en) * 2011-05-03 2013-02-05 The United States Of America As Represented By The Secretary Of The Army Portable inflatable protective partitioning system
FR3005864B1 (en) * 2013-05-24 2015-12-11 Lapro Environnement DECONTAMINATION PROCESS.

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FR3107073A1 (en) 2021-08-13
FR3107073B1 (en) 2022-01-07
WO2021161144A1 (en) 2021-08-19
EP4103797C0 (en) 2024-06-26
EP4103797A1 (en) 2022-12-21

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