EP3532173B1 - Dispositif d'assistance respiratoire - Google Patents

Dispositif d'assistance respiratoire Download PDF

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Publication number
EP3532173B1
EP3532173B1 EP17755467.2A EP17755467A EP3532173B1 EP 3532173 B1 EP3532173 B1 EP 3532173B1 EP 17755467 A EP17755467 A EP 17755467A EP 3532173 B1 EP3532173 B1 EP 3532173B1
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EP
European Patent Office
Prior art keywords
housing
breathing aid
mouthpiece
inhalation
aid according
Prior art date
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Application number
EP17755467.2A
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German (de)
English (en)
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EP3532173A1 (fr
Inventor
Matthias WERZ
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Werz Innovations GmbH
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Werz Innovations GmbH
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Publication of EP3532173A1 publication Critical patent/EP3532173A1/fr
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Publication of EP3532173B1 publication Critical patent/EP3532173B1/fr
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B33/00—Devices for allowing seemingly-dead persons to escape or draw attention; Breathing apparatus for accidentally buried persons
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/06—Mouthpieces; Nose-clips

Definitions

  • the invention relates to a breathing aid to enable a person buried by an avalanche to breathe, with a housing that has an inhalation channel with a valve arranged in the housing that automatically opens when inhaling and automatically closes when exhaling, and an exhalation channel with a valve in the housing arranged valve, which automatically closes when inhaling and automatically opens when exhaling, having, wherein the inhalation channel and the exhalation channel open into a mouthpiece arranged on the housing.
  • a valve system for a breathing aid for swimmers comprising a valve housing and a valve membrane arranged in the housing, the valve membrane being arranged on a contacting section, which is preferably formed in a central region of the valve membrane, on a first end of a fastening element, the valve membrane starting from the contacting section, it is angled at least in sections towards a second end of the fastening element.
  • the valve system is remote from a mouthpiece.
  • the mouthpiece is connected to the valve system via a hose. Inhaled air and exhaled air are separated in the valve system. A dead space is therefore also present here, so that there is a risk that a user will again breathe in CO 2 -containing air that he had previously exhaled.
  • a device which comprises a mouthpiece with an exhalation valve.
  • An inhalation valve can be arranged in a hose that leads to a filter device.
  • a device which has a mouthpiece with two valves.
  • the inhalation valve communicates with a tube at the end of which a filter is arranged.
  • the filter is arranged in the area of a user's ear.
  • a protective helmet for skiers which has a control system with a mouthpiece and a breathing air intake area and a breathing gas outlet area, which is arranged on the helmet at a distance from the intake area.
  • the helmet has a mouthpiece in the area of which an inhalation valve and an exhalation valve are arranged.
  • An inhalation channel communicates with ports on the outside of the helmet.
  • a breathing aid in which a channel branches out from a mouthpiece and a valve is arranged in each of the channels.
  • the mouthpiece can be attached to a vest.
  • FR 1,443,927 A discloses a breathing aid with a housing in which two valves are arranged and which has a mouthpiece.
  • an avalanche protection device comprising an avalanche protection backpack with at least one inflatable buoyancy airbag. Furthermore, a breathing system is provided with a breathing housing which connects a one-way valve to an ambient air intake zone and an exhalation one-way valve to an exhalation tube and a CO 2 exhalation area, with a mouthpiece being provided on the breathing housing.
  • the object of the present invention is to provide a breathing aid that is suitable for reliably protecting a person buried by an avalanche from asphyxia.
  • the housing is designed as a handle, the breathing aid can be quickly and easily put into the mouth if required. namely especially when the winter sports enthusiast was buried by an avalanche. It is also possible to couple the housing to an avalanche rescue system, so that moving the breathing aid to the mouth can activate a triggering system, for example to inflate an avalanche airbag that is inside a backpack. In the same movement, the user thus moves the release handle, which is designed as a breathing aid, to the mouth.
  • the exhaled air and the inhaled air are separated by means of the valves directly in the housing, i. H. near the mouthpiece. Because the at least one inhalation opening is formed on the housing, it is in the immediate vicinity of the mouthpiece, so that the inhalation channel is very short. Therefore there is no or a negligible increase in dead space, since the breathing air is taken in in the immediate vicinity of the mouthpiece.
  • the inhalation opening is exposed, i. H. is not connected to other elements, such as a hose.
  • the intake of fresh air and the separation of inhaled and exhaled air thus take place in one component.
  • the housing is preferably designed in at least two parts, in particular with an upper shell and a lower shell, which facilitates assembly and manufacture of the breathing aid.
  • the at least one inhalation opening is arranged on the same side of the housing, in particular the underside of the housing, as the mouthpiece.
  • a number of inhalation openings are preferably provided so that a user has enough breathing air available.
  • the inhalation openings and the mouthpiece can be arranged on the same side. This allows the mouthpiece and the inhalation openings to be hidden more easily in order to to prevent the ingress of snow, for example.
  • the entire surface of the underside of the housing can be designed as an air inlet (except in an area in which the exhalation channel is arranged).
  • a closed cover is provided to cover the mouthpiece and/or the at least one inhalation opening. This means that snow or moisture can be prevented from penetrating when the breathing aid is not needed. Neither the mouthpiece nor the inhalation openings can become clogged or icy. Thus, the functionality in an emergency, i. H. in the event of an avalanche.
  • the housing can be detachably connectable to the cover.
  • the cover can thus be detached from the housing particularly easily and quickly when the breathing aid is to be used.
  • the advantage of the cover is in particular that the open mouthpiece and thus the sensitive inner workings of the handle are only “opened” at the moment of release. This has the advantage that no foreign bodies can get into the handle or the valves can ice up through the mouthpiece without triggering. Only when the grip is really needed/by pulling off the cover (at the moment of the avalanche) is the grip ready to breathe.
  • the cover can have a receptacle for the mouthpiece.
  • the breathing aid can thus be inserted into the receptacle with the mouthpiece and easily detached from the cover again.
  • the mouthpiece can be clipped into the cover. This makes it particularly easy to separate the mouthpiece from the cover again. This means that the breathing aid is ready for use particularly quickly.
  • the cover can consist of different parts with different materials. For example, a fastening part can be made of a harder material and connected to a support system, for example, while a softer part can be flexible so that the mouthpiece can be easily clipped in and also removed again in the area of the soft part.
  • a projection is provided on the cover, which projection can be inserted into a corresponding inner contour of the mouthpiece or the inner contour of the mouthpiece can be slipped over the projection and clipped to it.
  • this measure makes it possible to provide the cover without a border, i. H. the cover may not have a border enclosing the mouthpiece.
  • the contour of the mouthpiece is therefore larger than the contour of the cover plate, so that there are no steps or gaps in which water can collect. Thus, the mouthpiece can be prevented from freezing to the cover plate.
  • the inner contour is sealed.
  • the cover can have a fastening means for fastening to a carrying system, in particular a shoulder strap.
  • the breathing aid can be attached to a shoulder strap, for example, via the cover.
  • the receptacle can be open downwards, so that in an emergency a user can pull the housing downwards out of the receptacle and thereby trigger an avalanche rescue system. At the same time, he can guide the breathing aid to the mouth.
  • the fastening means can be designed in such a way that the cover can be fastened in different positions on the shoulder strap.
  • a piping system can be provided so that the holder can be continuously adjusted on the shoulder strap.
  • the fastening means can also have four projections, for example.
  • the fastening means can be cross-shaped, so that it can be fastened to corresponding tabs of a shoulder strap in positions offset by 90 degrees.
  • this makes it possible to attach the cover to the left and right shoulder straps in positions offset by 90 degrees. This can be particularly advantageous in order to bring about an alignment of the breathing aid or the housing, so that the housing can be gripped particularly well and the mouthpiece can be fed into the mouth without any further rotary movement.
  • a filter element is arranged in the inhalation channel and/or in the area of the at least one inhalation opening. This prevents particles, water or snow from getting to the valves and clogging them or icing them up.
  • the filter element is made of hydrophobic material. Furthermore, the filter element can rest against the wall of the inhalation channel. Thus, in particular, there is no intermediate space between the filter element and the wall of the inhalation channel, so that no water can collect there.
  • the filter element can be made of an air-permeable and water-repellent material. In particular, it can Material hydrophobic and / or plasma-treated to make it water-repellent.
  • the filter element can be designed as a textile, in particular fabric, woven fabric, knitted fabric, fleece or the like.
  • the filter element can be flexible.
  • the filter element is preferably fixed in place in the area of an inhalation opening. The substance can be pinched between the upper shell and the lower shell of the housing.
  • the filter element can be arranged flush with the outside of the housing. This avoids steps or gaps where ice, snow or water deposits can form.
  • one or more water deflectors in particular lamellae, can be provided in the area of the inhalation opening.
  • the lamellae can be aligned and arranged relative to one another in such a way that no water can reach the filter element when water is applied perpendicularly to the surface of the housing.
  • the lamellae can be aligned in an angular range between 30 and 60 degrees to the surface of the housing.
  • the exhalation channel can be connected to an air line, in particular a hose. This means that the exhaled air can be diverted away from the mouthpiece and discharged to another location. Thus, exhaled CO 2 can be effectively prevented from being inhaled again.
  • the housing can be connected to a triggering mechanism of an avalanche rescue system.
  • the trigger mechanism when feeding the breathing aid to the mouth of a user, the trigger mechanism is triggered and, for example, an avalanche airbag is activated.
  • the triggering mechanism or a part of the triggering mechanism can be coupled to the housing at different points.
  • the breathing aid can thus be used both on the left and on the right, ie on a left or a right shoulder strap, and can be triggered by a user with the left or right hand.
  • the triggering mechanism can be coupled or fastened to the right or left of the housing.
  • corresponding recesses can be provided on the housing, into which a thickened end piece of a cable can be inserted.
  • the thickened end of the cable can then be secured in the recess, for example, via a type of bayonet catch.
  • the bayonet lock can in turn be secured to prevent accidental opening. It can be secured by blocking the space in which the bayonet pin moves.
  • the valves in the housing can be designed as drain valves, for example. They are arranged inside the housing and separate the inhaled air from the exhaled air.
  • the exhaled air can be routed via an exhalation tube, which leads over a shoulder strap of a carrying system, to the back of a rucksack which is arranged on the carrying system, and released there. Since the area where the fresh air is sucked in is at a different location than the exhalation area, CO 2 can thus be effectively prevented from being inhaled again. The result is a significantly longer survival time under an avalanche.
  • the inhaled air can be filtered through a hydrophobic filter. This has the advantage that no particles, water or snow can get into the valve system. Water in the valve system could cause the valves to freeze.
  • the inhalation openings are protected by the hydrophobic but air-permeable filter.
  • the inhalation opening and the mouthpiece are only opened when the housing is detached from the receptacle, in particular a locking plate. This ensures that no moisture, water, snow or other particles can get into the housing and thus to the filter and/or the valves via the mouthpiece.
  • the filter may be flush with the top half of the housing or the outside of the housing. As a result, no water can collect and the inhalation opening can freeze and become blocked.
  • the hydrophobic material of the filter element, together with the cover, forms a closed system into which no condensation or moisture can penetrate.
  • the mouthpiece on the back of the housing can be detachably connected to the shoulder strap of a carrying system, in particular a backpack, by the cover, in particular a locking plate.
  • the shape of the cover allows the mouthpiece to be hidden and protected from external influences.
  • the placement of the mouthpiece on the underside of the housing or the handle-like housing, as well as the shape of the housing, means that leverage from the snow masses of the avalanche is largely reduced. Opening the cover downwards allows an airbag system to be triggered and the breathing aid to be detached from the cover by pulling the breathing aid downwards.
  • the locking plate offers the advantage that the handle and the breathing system can be used without the airbag system. The mouthpiece/handle can thus be locked on the shoulder strap without a triggering mechanism of the airbag system.
  • the arrangement of the two valves in the housing separates the inhaled air from the exhaled air at the first possible point.
  • no CO 2 is inhaled again.
  • the system according to the invention also only requires a tube that is used to discharge the exhaled air.
  • a hose from the inhalation channel to a valve unit that is arranged, for example, on a user's shoulder is eliminated.
  • the inhalation openings are arranged on the underside of the housing, they are not covered by a user's hand when the user is bringing the breathing aid to his mouth. It is therefore advantageous if the inhalation openings are arranged in the area of the mouthpiece, in particular on the same side of the housing as the mouthpiece.
  • the mouthpiece can be rotated 360 degrees and locked in 90-degree positions on the housing. It can be provided that the mouthpiece can be latched in the two end positions of the pivoting area, so that the position of the mouthpiece is fixed relative to the housing. Thus, the mouthpiece can be aligned in different positions to the housing, whereby the breathing aid can be adapted for use or attachment to the left or right shoulder strap of a carrying system. In particular, it can be provided that the mouthpiece can be pivoted clockwise or counterclockwise by 45 degrees with respect to a longitudinal axis of the housing. The breathing aid can thus be attached to the shoulder strap in such a way that the user can detach the housing and mouthpiece from the shoulder strap in one simple movement and put it in his mouth without having to rotate the housing and thus the mouthpiece to adjust it to the position of his mouth.
  • the air duct can be attached to the housing in a simple manner by providing a counter bearing in the air duct so that the air duct can be clamped between the counter bearing and the housing. This means that clamps or cable ties for attaching the air line to the housing can be avoided. Because of this and the movable mouthpiece, the handle can be moved in all spatial axes, so that it can move with the snow masses and is flexible. Even with strong forces from the snow masses, the grip can be kept in the mouth.
  • the 1 shows a user 1 carrying an avalanche rescue system with a carrying system 2, which has shoulder straps 3.
  • a handle-like breathing aid 5 was detached from a holder on the shoulder strap 3 and placed in the mouth.
  • a triggering mechanism was activated so that an avalanche airbag 6 was inflated.
  • air is inhaled in the immediate vicinity of the breathing aid 5, which is indicated by the arrows 7, 8, 9.
  • Exhaled air is guided via the hose 10 along the shoulder strap 3 and into the avalanche rescue system, in particular a backpack, so that it can be carried out at the lower end of the avalanche rescue system, which is indicated by the arrow 11 .
  • the tube 10 does not run in the cavity/packing area of a backpack, but in the "back wall" of the backpack and thus does not touch the interior/packing area of the backpack.
  • the breathing aid 5 comprises a housing 20 with an upper housing half 20a and a lower housing half 20b.
  • An inhalation channel 21 is formed in the housing 20 , the path of the inhalation air being marked by the reference number 22 .
  • an exhalation channel 23 is formed in the housing 20, the path of the exhaled air being marked by the reference numeral 24. Both the inhalation channel 21 and the exhalation channel 23 open into a mouthpiece 25.
  • a valve 26 is arranged in the inhalation channel 21, which is designed as a drain valve and automatically opens when inhaled and automatically closes when exhaled.
  • a valve 27 is also arranged, which is designed as a drain valve.
  • the valve 27 automatically closes when inhaling and automatically opens when exhaling.
  • To the Exhalation channel 23 is followed by an air line 28, in particular the tube 10 ( 1 ) to evacuate exhaled air.
  • An annular counter bearing 29 is arranged in the air line 28 , the air line 28 being clamped between the counter bearing 29 and the housing 20 .
  • the inhalation channel 21 opens into inhalation openings 30, 31.
  • the inhalation openings 30, 31 are exposed and arranged on the same side of the housing 20 as the mouthpiece 25. In particular, they are arranged on an underside or rear side of the housing 20. A user can thus grip the top or upper housing half 20a without having to fear that the inhalation openings 30, 31 will be covered. A user can thus bring the breathing aid 5 to his mouth and, if necessary, hold it by his mouth without covering the inhalation openings 30, 31.
  • a cover 35 is attached to the carrying system 2, in particular to the shoulder strap 3.
  • the breathing aid 5 is held on the shoulder strap 3 via the cover 35 .
  • the cover 35 is designed in the manner of a slit in the area 36 , in particular open at the point 37 .
  • the breathing aid 5 can accordingly be removed from the cover 35 in the direction of the arrow 38, as a result of which the mouthpiece 25 is released.
  • the mouthpiece 25 is covered by the cover 35 so that no particles, snow or moisture can get into the housing 20 via the mouthpiece.
  • the mouthpiece 25 can be locked in the cover 35 .
  • the cover 35 can be designed in such a way that the inhalation openings 30, 31 are also covered, so that no moisture can penetrate here either.
  • a filter element 40 is arranged in the inhalation channel 21, in particular made of hydrophobic material.
  • the filter element 40 prevents snow, moisture or particles from getting into the housing 20 via the inhalation openings 30 , 31 and the inhalation channel 21 from being clogged, in particular moisture reaching the valve 26 or even the valve 27 .
  • a functional impairment of the valves 26, 27, in particular due to freezing, can thus be prevented.
  • inhalation openings 30, 31 are distributed essentially over the entire underside of the housing 20, so that the largest possible inhalation area is created. Furthermore you can 3 see that a part 50 of a triggering mechanism for the avalanche rescue system is arranged on the breathing aid 5.
  • An avalanche rescue system in particular an avalanche airbag, can thus be triggered at the same time by pulling on the breathing aid 5, in particular when it is released from the cover 35 in the direction of the arrow 38.
  • the mouthpiece 25 may be formed of soft and pliable material to improve comfort for a user.
  • the membranes of the valves 26, 27 can also be made of silicone.
  • the 4 shows an exploded view of an alternative embodiment of a breathing aid 5 '.
  • the breathing aid 5' also has an upper and a lower housing half 20a', 20b'.
  • the lower housing half 20b' has inhalation openings 30', 31'.
  • filter elements 40' which can be made of textile material, in particular fabric, are provided.
  • the filter elements 40' are supported by support structures 51 in the area of the inhalation openings 30', 31'.
  • the support structures 51 can be designed like a grid.
  • the support structures 51 can clamp the filter elements 40' in an edge area of the inhalation openings 30', 31' so that the filter elements 40' are always under tension.
  • the support structures 51 can be dimensioned such that they position the filter elements 40' in the area of the inhalation openings 30', 31' such that they are level with a surface of the housing 20', in particular the lower housing half 20b'.
  • Supporting elements 52 can be provided in the upper housing half 20a', on which the supporting structures 51 can be supported. By joining the housing halves 20a', 20b' together, the support structures 51 and the filter elements 40' are thus clamped between the housing halves 20a', 20b' and thus positioned in a stationary manner.
  • the figure 5 shows a sectional view through a mouthpiece 25' and a cover 35'.
  • the cover 35' has a part 35a' made of a harder material and a part 35b' made of a comparatively softer material.
  • the softer material 35b' can yield to the mouthpiece 25' when mated with the cover 35'.
  • the mouthpiece 25' can be clipped to the cover 35'.
  • the cover 35' can have a projection 35c', which has a thickening and reaches through an element 25a' of the mouthpiece 25' with an expandable opening.
  • the mouthpiece 25' is also detachably held on the cover 35' via the projection 25c'.
  • the 6 shows the breathing aid 5 'in a perspective view.
  • the cover 35' is connected to the mouthpiece 25'.
  • the breathing aid 5 has a coupling point 55 for coupling to a part of a trigger mechanism.
  • the coupling point 55 can be designed as a recess. Such a coupling point 55 can also be provided on the opposite side of the breathing aid 5', which is not visible here.
  • a thickened end of a triggering mechanism can be placed in the recess of the coupling point 55 and fixed there by a fixing element 56 .
  • the fixing element 56 can be designed as a bayonet catch.
  • a securing element 57 can be provided. The securing element 57 can prevent the fixing element 56 from unintentionally releasing, in particular unintentionally turning back and releasing the part of the triggering mechanism.
  • the fixing element 56 can be deliberately released in order to decouple the triggering mechanism on one side of the breathing aid 5' and to couple it on the opposite side. This can be particularly helpful when the breathing aid 5' is to be changed from the left to the right shoulder strap or vice versa.
  • water deflectors 33 designed as lamellae, which reduce the water pressure and prevent water from getting into the area of the filter element and thus icing it up.
  • the lamellae allow larger breathing openings in the filter element.
  • a fastening means 36 for fastening to a shoulder strap is provided on the cover 35".
  • the fastening means 36 is designed in the shape of a cross and has Projections 36a - 36d.
  • the fastening means 36 with the opposite projections 36a, 36c or 36b, 36d can be fastened to adjacent loops provided on a shoulder strap.
  • the cover 36 can thus be attached to a shoulder strap in positions offset by 90 degrees.
  • the sectional view of 8 it can be seen that the cover 35" does not enclose the mouthpiece 25" in terms of circumference and does not have a border suitable for this.
  • the mouthpiece 25" can be sealed off from the cover 35" by a seal 39, for example.
  • the mouthpiece 25" can be pivoted relative to the housing 20". In particular, the mouthpiece 25" can be pivoted between two end positions offset by 90 degrees, with the mouthpiece 25" being lockable in the end positions.
  • the mouthpiece 25" can thus be adapted to different attachment positions of the cover 35".

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (17)

  1. Aide respiratoire (5, 5') pour permettre à une personne ensevelie par une avalanche de respirer, comportant un boîtier (20), lequel comporte un canal d'inspiration (21) comportant une valve (26) disposée dans le boîtier (20), laquelle s'ouvre automatiquement lors de l'inspiration et se ferme automatiquement lors de l'expiration, et un canal d'expiration (23) comportant une valve (27) disposée dans le boîtier (20, 20', 20"), laquelle se ferme automatiquement lors de l'inspiration et s'ouvre automatiquement lors de l'expiration, dans laquelle le canal d'inspiration (21) et le canal d'expiration (23) débouchent dans un embout buccal (25, 25') disposé sur le boîtier (20, 20', 20") et le boîtier (20, 20', 20") comporte au moins une ouverture d'inspiration (30, 31, 30', 31', 30", 31") dans laquelle débouche le canal d'inspiration (21), dans laquelle le boîtier (20, 20') est conçu sous la forme d'une pièce de préhension, laquelle peut être saisie par un utilisateur avec une main et amenée à la bouche, caractérisée en ce que l'au moins une ouverture d'inspiration (30, 31, 30', 31') est disposée sur le même côté du boîtier (20, 20', 20"), en particulier le côté inférieur du boîtier (20, 20', 20"), que l'embout buccal (25, 25', 25"), dans lequel l'au moins une ouverture d'inspiration (30, 31, 30', 31', 30", 31") est libre.
  2. Aide respiratoire selon la revendication 1, caractérisée en ce qu'un couvercle (35, 35', 35") fermé est fourni pour couvrir l'embout buccal (25, 25', 25") et/ou l'au moins une ouverture d'inspiration (30, 31, 30', 31', 30", 31") lorsque l'aide respiratoire n'est pas nécessaire.
  3. Aide respiratoire selon la revendication 2, caractérisée en ce que le boîtier (20, 20', 20") peut être relié de manière amovible au couvercle (35, 35', 35").
  4. Aide respiratoire selon l'une des revendications 2 ou 3, caractérisée en ce que le couvercle (35) comporte un logement pour l'embout buccal (25).
  5. Aide respiratoire selon l'une quelconque des revendications 2 ou 3, caractérisée en ce que l'embout buccal (25', 25") peut être clipsé dans le couvercle (35', 35").
  6. Aide respiratoire selon l'une quelconque des revendications 2 à 5, caractérisée en ce que le couvercle (35, 35', 35") comporte un moyen de fixation (36) destiné à la fixation à une sangle d'épaule (3) d'un système de support (2).
  7. Aide respiratoire selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un élément filtrant (40, 40') est disposé dans le canal d'inspiration (21) et/ou dans la zone de l'au moins une ouverture d'inspiration (30, 31, 30', 31', 30", 31").
  8. Aide respiratoire selon la revendication 7, caractérisée en ce que l'élément filtrant (40) est formé à partir d'un matériau hydrophobe.
  9. Aide respiratoire selon la revendication 7, caractérisée en ce que l'élément filtrant (40') est formé à partir d'un matériau perméable à l'air et hydrofuge.
  10. Aide respiratoire selon l'une quelconque des revendications précédentes 7 à 9, caractérisée en ce que l'élément filtrant (40, 40') repose entièrement contre la paroi du canal d'inspiration (21) et/ou est disposé à plat avec le côté extérieur du boîtier (20, 20', 20").
  11. Aide respiratoire selon l'une quelconque des revendications précédentes, caractérisée en ce que le canal d'expiration (23) est relié à une conduite d'air (28), en particulier à un tuyau.
  12. Aide respiratoire selon l'une quelconque des revendications précédentes, caractérisée en ce que le boîtier (20, 20', 20") est relié à un mécanisme de déclenchement (50) d'un système de sauvetage en cas d'avalanche.
  13. Aide respiratoire selon la revendication 12, caractérisée en ce que le mécanisme de déclenchement (50) peut être accouplé au boîtier (20', 20") en différents points.
  14. Aide respiratoire selon l'une quelconque des revendications précédentes 7 à 13, caractérisée en ce qu'au moins un déflecteur d'eau (33), en particulier une lamelle, est disposé dans la zone de l'ouverture d'inspiration (30", 31"), dans lequel l'élément filtrant (40, 40') est disposé sous le déflecteur d'eau (33).
  15. Aide respiratoire selon l'une quelconque des revendications précédentes, caractérisée en ce que l'embout buccal (25") peut pivoter sur 360 degrés et peut être verrouillé dans les positions à 90 degrés sur le boîtier (20").
  16. Aide respiratoire selon l'une quelconque des revendications précédentes 2 à 15, caractérisée en ce que le couvercle (35") ne comporte aucune bordure entourant l'embout buccal (25").
  17. Aide respiratoire selon l'une quelconque des revendications précédentes 11 à 16, caractérisée en ce qu'une butée (29) est située à l'intérieur de la conduite d'air (28) dans la zone du boîtier (20, 20', 20") de telle sorte que la conduite d'air est enserrée entre la butée (29) et le boîtier (20, 20', 20").
EP17755467.2A 2016-10-26 2017-08-14 Dispositif d'assistance respiratoire Active EP3532173B1 (fr)

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DE102016120441.2A DE102016120441A1 (de) 2016-10-26 2016-10-26 Atemhilfe
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WO2018077506A1 (fr) 2018-05-03
US20200222731A1 (en) 2020-07-16
EP3532173A1 (fr) 2019-09-04
DE102016120441A1 (de) 2018-04-26
CA3041348A1 (fr) 2018-05-03
US11331521B2 (en) 2022-05-17

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