WO2024047029A1 - Système de sauvetage comprenant un coussin de sécurité gonflable à flottabilité gonflable - Google Patents

Système de sauvetage comprenant un coussin de sécurité gonflable à flottabilité gonflable Download PDF

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Publication number
WO2024047029A1
WO2024047029A1 PCT/EP2023/073647 EP2023073647W WO2024047029A1 WO 2024047029 A1 WO2024047029 A1 WO 2024047029A1 EP 2023073647 W EP2023073647 W EP 2023073647W WO 2024047029 A1 WO2024047029 A1 WO 2024047029A1
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WO
WIPO (PCT)
Prior art keywords
airbag
pressure chamber
rescue system
valve
gas
Prior art date
Application number
PCT/EP2023/073647
Other languages
German (de)
English (en)
Inventor
Matthias WERZ
Original Assignee
ADVENATE GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102022123470.3A external-priority patent/DE102022123470A1/de
Application filed by ADVENATE GmbH filed Critical ADVENATE GmbH
Publication of WO2024047029A1 publication Critical patent/WO2024047029A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F3/00—Travelling or camp articles; Sacks or packs carried on the body
    • A45F3/04—Sacks or packs carried on the body by means of two straps passing over the two shoulders
    • 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
    • A45—HAND OR TRAVELLING ARTICLES
    • A45F—TRAVELLING OR CAMP EQUIPMENT: SACKS OR PACKS CARRIED ON THE BODY
    • A45F2200/00—Details not otherwise provided for in A45F

Definitions

  • the invention relates to a rescue system, in particular an avalanche rescue system, with an inflatable airbag.
  • buoyancy airbag an inflatable buoyancy body in the manner of an airbag, hereinafter also referred to as a buoyancy airbag, on an emergency system.
  • a user can trigger the inflation of the buoyancy body to increase its surface area. This is intended to make it possible for the winter athlete who has triggered the buoyancy body to move up in the avalanche and therefore not be buried too deeply.
  • Electric hair dryer systems have the disadvantage that they are very expensive and significantly heavier than cartridge systems due to the components used.
  • the current state of the art of these systems allows double triggering due to the large storage capacity in batteries or capacitors.
  • the current state of the art includes various techniques for this. So is e.g. B. known that the release handle of the airbag is connected to a breathing apparatus which is brought to the mouth at the moment of release and allows breathing under snow by separating inhaled and exhaled air. It is known from EP 3 370 834 A1 that a breathing apparatus can be automatically brought to the mouth. Other systems such as EP 2 700 433 A2 rely on electric fan inflation, whereby the airbag is emptied again after a defined period of time using an algorithm in which the airbag is emptied again by the fan in order to create a breathing cavity for the victim.
  • the rescue system can have a breathing system and/or a system for multiple activation and filling or releasing of the air contained in the buoyancy airbag.
  • a rescue system in particular an avalanche rescue system, is provided with an inflatable airbag, in particular a buoyancy airbag, and at least one pressure chamber to which the airbag is connected via a valve, with a triggering system being provided which is set up to open the valve, so that at least a portion of the gas stored in the pressure chamber flows into the airbag and inflates it, the airbag having at least one first chamber, which is connected to the first pressure chamber via the first valve, and at least one second chamber, which can be filled with ambient air via a shut-off device is.
  • the first chamber represents a support structure.
  • the gas volume required to inflate the first chamber is significantly less than the gas volume required to inflate a conventional airbag. Because the second chamber(s) are inflated with ambient air, the fully inflated airbag still has a similar gas volume to conventional airbags. However, the size and weight of the pressure chamber can be saved.
  • the first chamber can be formed in sections from a first material, wherein a common wall of the at least one first chamber and the at least one second chamber can be formed from a second material that is different from the first material.
  • the weight of the airbag can therefore be reduced by suitable choice of material, in particular for the second material.
  • a pressure chamber can be used that is lighter than conventional pressure chambers. However, the weight savings in the pressure chamber are not compensated for by the additional weight of the airbag.
  • the second material is lighter than the first material.
  • the second material can be at least a factor of 3, in particular a factor of 5, lighter than the first material.
  • the first and second materials may be gas-tight and the first material may be more tear-resistant than the second material.
  • the first material is preferably gas-tight for the gas in the pressure chamber and the second material is at least tight for ambient air.
  • the first material is preferably more tear-resistant than the second material. This material can therefore be used as the outer wall of the airbag. This can prevent the airbag from tearing when triggered and collapsing instead of forming a buoyancy body.
  • the pressure chamber can have a filling opening for filling the pressure chamber with gas.
  • the pressure chamber can be set up to store a gas at a pressure greater than 200 bar, in particular in the range 200 bar to 300 bar.
  • a gas is stored in the pressure chamber at a pressure of less than 200 bar, in particular in the range of 20 bar to 200 bar, and that the pressure chamber is designed accordingly.
  • Such a rescue system can be operated without electricity and, if necessary, without a cartridge.
  • an external cartridge can only be connected to fill the pressure chamber with a gas.
  • the pressure chamber is preferably filled with compressed air. If a gas with a pressure greater than 200 bar is stored in the pressure chamber, this is usually sufficient to inflate the airbag.
  • An additional gas source is not necessary. However, it can be provided to additionally provide a Venturi nozzle so that additional ambient air is sucked in to inflate the airbag when the valve is opened.
  • the use of a cartridge as a pressure chamber is also conceivable.
  • a triggering system is advantageously provided which is set up to open the valve so that at least part of the gas stored in the pressure chamber flows into the airbag, in particular the first chamber(s), and inflates it.
  • the trigger system can include a trigger handle that is pulled by a user to open the valve.
  • the triggering system can include, for example, a sensor that is set up to detect an event that must lead to the valve opening in order to inflate the airbag.
  • the triggering system can include coupling elements in order to couple the rescue system, for example, with a user's means of transport, for example with a saddle of a horse or a bicycle.
  • the trigger system may further include pyrotechnic and/or electrical components that can cause a valve to open.
  • the valve can be closed by a user or in a time-controlled manner so that not all of the gas contained in the pressure chamber flows into the airbag. This makes it possible to inflate an airbag a second time using the gas contained in the pressure chamber. This is particularly advantageous if the rescue system is accidentally triggered, i.e. H. the airbag is filled for the first time.
  • a user is prepared should he or she find himself in the situation of having to inflate the airbag twice without having had the opportunity to refill the pressure chamber beforehand.
  • a second pressure chamber connected to the airbag via a second valve is provided.
  • the trigger system can be set up to open either the first or second valve.
  • the rescue system is therefore designed to be redundant.
  • the airbag can be inflated several times, which has advantages if a user gets into an emergency situation twice and has to inflate the airbag.
  • the trigger system can have a mechanical switch so that a user can select which of the valves should be opened when the trigger system is actuated.
  • the triggering system can have a switching device, in particular a manually operable switch, so that a user can select which valve should be opened when that Trigger system is activated.
  • the switching device can additionally or alternatively be set up to block the second triggering or a return pumping/suction to be described
  • a suction unit for sucking gas out of the airbag.
  • the rescue workers can then activate the suction unit and quickly suck the gas out of the airbag.
  • a user himself initiates the suction of gas from the airbag. This can be done, for example, to regain more freedom of movement.
  • the suction unit can be connected to the first and/or second pressure chamber.
  • the gas stored in one of the pressure chambers can be used in particular to accelerate the suction of gas from the airbag.
  • one of the pressure chambers can be connected to a correspondingly connected amplifier, for example a Venturi nozzle, which causes gas to be sucked out.
  • the pressure chamber can be connected to a turbine or a fan, which causes the gas to be sucked out of the airbag.
  • the suction unit can have a time element, in particular a time valve. If the airbag has been filled, the time element can be used to control that the airbag is emptied again after a predetermined time. The air escaping from the airbag can be supplied to a user for ventilation purposes. The time element can be deactivated by a user.
  • the suction unit can have a suction valve connected to the airbag.
  • the exhaust valve prevents gas from escaping from the airbag when this is not desired.
  • the suction unit opens the suction valve so that gas can be sucked out of the airbag.
  • the suction unit can be connected to or include a ventilation element or breathing device.
  • the air contained in an airbag can therefore be used to ventilate a user.
  • the ventilation element can be, for example, a mouthpiece or a breathing mask.
  • the inflation and/or suction of the airbag can be supported by an amplifier.
  • the amplifier can be operated without power.
  • the amplifier can be a Venturi nozzle, a turbine or a fan, which is driven or acted upon by gas from the pressure chamber.
  • Another valve can be arranged at the filling opening. This allows the filling opening of the pressure chamber to be closed and the gas to be stored in the pressure chamber. The filling opening can be opened by the valve so that the pressure chamber can be filled.
  • the pressure chamber is designed like a hose.
  • Such pressure chambers are particularly light, flexible and inexpensive. They can be stored particularly easily, for example in a backpack.
  • the hose-like pressure chamber can also be bent when filled.
  • the pressure chamber in particular the pressure hose, can be constructed in multiple layers, with the outermost layer being at least partially braid-free and/or fiber-free. This can prevent leaks when the pressure hose is connected to other components.
  • the pressure chamber in particular the pressure hose, can have an elastomer core that is surrounded by a reinforcing jacket.
  • the (reinforcement) casing can have one, two or more layers.
  • the (reinforcement) jacket stiffens the pressure hose. It is particularly advantageous if the elastomer core has a smooth inner wall, in particular if it is not corrugated or grooved.
  • the pressure chamber can have a casing comprising metal, stainless steel, textile, plastic, in particular aramid and/or carbon. Such a jacket allows gas to be stored under high pressure in the pressure chamber.
  • the pressure chamber can have a hose made of plastic, in particular Teflon or PTFE, which has the jacket.
  • the high pressures within the hoses can create a strong negative pressure, for example in the area of a Venturi nozzle. This suppression allows the air from the airbag to be released quickly and completely, creating a breathing cavity for the user.
  • the valves for controlling the air flow of the high-pressure hoses can be designed in such a way that the user can use a mechanism, for example on the release handle of the airbag, to control whether the air should be released from the airbag. For example, if this unlockable and secured mechanism is not activated within a defined period of time, the airbag deflates and creates a breathing cavity for the user.
  • the overall system should have additional features.
  • the system should have a feature that protects against these risks.
  • the system can therefore have additional means that allow the user to bring a mouthpiece or a mask with ventilation capability to the mouth at the moment of an avalanche or to have it automatically brought to the mouth.
  • Ultralight casings made of carbon and/or plastic are possible for the pressure chamber(s), which can be realized at an operating pressure of up to 300 bar. Due to the low weight and the ability to store gas, especially air, at pressures greater than 200 bar, venturi valves for filling may be unnecessary.
  • Tubular pressure chambers can have a weight of 150 g/m.
  • a preferred embodiment is characterized by the fact that two pressure chambers (hoses) are provided.
  • the first pressure chamber (hose) is triggered "normally”.
  • a timer is connected to the valves. If a "button" that could be placed on the trigger handle, for example, does not fire after a predetermined period of time, for example 2 minutes ., is pressed, it empties Airbag. When the button is pressed, the airbag does not deflate and the user has a second airbag deployment in reserve.
  • a breathing device can be provided with a mouthpiece which is connected to separate inhalation and exhalation areas of the breathing device, the mouthpiece being arranged on a wing of the airbag which extends in front of the neck area of a user when the airbag is inflated and in particular connected to the inhalation without tubes. and exhalation area of the breathing device is connected.
  • the wing allows the mouthpiece to be positioned correctly.
  • the pressure stored in the second pressure chamber can be used for a second filling of the airbag but also for emptying the airbag.
  • a safety mechanism which can be designed as a switching device or can include one, is installed in the release handle of the airbag and can be manually activated or unlocked by the user. If the user is hit by an avalanche, the airbag is activated and filled by pulling on the release handle. If the safety mechanism is released within three minutes, it means that the user is conscious and has not been buried. This manual actuation of the mechanism blocks the suction, which means that the "reserve" of the second pressure chamber is still available and the airbag can be triggered and filled a second time.
  • the release handle is not unlocked manually within three minutes, This means that the user is unable to act and has been buried.
  • the compressed air from the second pressure chamber is now used to generate a negative pressure with which the airbag, in particular the first chamber(s), is/are completely emptied. Because the airbag covers the head does not enclose, but extends over the backpack, the suction only exposes the back area.
  • the very compressed snow from an avalanche has such a high density that buried people can be covered by one report a "concrete state" in which the limbs or the chest area cannot be moved a millimeter.
  • the suction does not expose the head and mouth area and these body regions cannot be exposed independently even after suction from the buried victim due to the highly compressed snow masses It is not possible to generate a safe and reliable breathing cavity through the back pumping. However, the exposure of the back area contributes greatly to the fact that the thorax can be moved and thus enables a deeper breathing movement again. In connection with the breathing device, which continues despite the suction is fully functional, this leads to a significant improvement in the probability of survival. Furthermore, the increased range of motion can prevent panic caused by claustrophobia.
  • Fig. 1 is a highly schematic representation of a rescue system
  • Fig. 2 shows the rescue system of Fig. 1 with an additional Venturi nozzle
  • Fig. 3 shows a rescue system with two pressure chambers
  • Fig. 4 shows a rescue system with a suction unit
  • Fig. 5 shows an embodiment of a manual switch
  • Fig. 6 shows a low pressure valve
  • Fig. 7 shows a rescue system with protector and ventilation function
  • Fig. 8 is a further representation of a rescue system with two
  • Fig. 9 shows the rescue system of Fig. 8, which is used to suction the
  • Airbags are used;
  • FIG. 10 is a schematic representation of part of a suction device
  • Fig. 11 shows an airbag with several chambers
  • Fig. 12 shows an airbag with wings for positioning a breathing device.
  • FIG. 1 shows a rescue system 10 with a pressure chamber 12, which is connected to an inflatable airbag 16 via a valve 14.
  • the pressure chamber 12 is set up to store a gas at a pressure greater than 200 bar, in particular in the range 200 to 300 bar.
  • the gas stored in the pressure chamber 12, for example air can be supplied via a filling opening 18. So that the stored gas cannot escape, a valve 20 is provided at the filling opening 18.
  • the valve 14 can be designed as a check valve.
  • the valve 14 is coupled to a release system 22, which in the exemplary embodiment shown includes a Bowden cable 24 and a release handle 26.
  • the pressure chamber 12 can be filled by connecting, for example, a high-pressure pump, a gas cartridge or another gas source to the valve 20.
  • a user To inflate the airbag 16, a user must pull the release handle 26 to thereby open the valve 14 so that gas can flow from the pressure chamber 12 into the airbag 16.
  • the pressure chamber 12 can be designed as a pressure hose.
  • it can be a hose made of plastic, for example PTFE or Teflon, which has a coating.
  • the covering may comprise a fabric, braid or the like.
  • the sheathing can include metal, plastic, aramid and/or carbon.
  • the rescue system 10 is shown in FIG. 2, with an optional amplifier 28 also shown, which in the exemplary embodiment shown includes a Venturi nozzle 30.
  • an optional amplifier 28 also shown, which in the exemplary embodiment shown includes a Venturi nozzle 30.
  • the valve 14 When the valve 14 is opened, compressed gas flows from the pressure chamber 12 first into the Venturi nozzle 30. As a result, ambient air is sucked in and guided together with the gas from the pressure chamber 12 into the airbag 16. This allows the inflation of the airbag 16 to be accelerated.
  • the pressure chamber 12 can optionally be made smaller because less compressed gas is required to fill the airbag 16.
  • a turbine system or a fan can be provided.
  • the rescue system 100 shown in FIG. 3 has additional components, for which new reference numbers are assigned. Components that correspond to those of the rescue system 10 have the reference numbers of FIGS. 1 and 2.
  • the rescue system 100 has a second pressure chamber 112, which is also connected to the airbag 16 via a valve 114.
  • the second pressure chamber 112 is also set up to store a gas at a pressure greater than 200 bar, in particular in the range 200 to 300 bar.
  • the pressure chamber 112 can be filled with gas via a valve 120.
  • the release system 22 includes, in addition to the Bowden cable 24 and release handle 26, a switching device 116, which in this case includes a manual changeover switch.
  • the first valve 14 or the second valve 114 is opened by pulling on the release handle 26 and the airbag 16 is filled with gas from the first pressure chamber 12 or the second pressure chamber 112.
  • the rescue system 100 may also include an optional amplifier 28 as shown in FIG. 2. Such an amplifier is also shown in the embodiment of a rescue system 200 in FIG.
  • the rescue system 200 of FIG. 4 essentially corresponds to the rescue system of FIG. 3, with an additional suction unit 202 being provided.
  • the suction unit 202 serves to accelerate the suction of gas from the filled airbag 16.
  • the suction unit 202 is connected to both the first and second pressure chambers 12, 112.
  • the suction unit 202 can be switched on or off using the selector switch 204 designed as a valve.
  • the suction unit 202 also has a time element 206.
  • the time element 206 ensures that the airbag 16 is emptied again after a predetermined time has elapsed after filling. If the selector switch 204 is open, a buffer store 208 also loses pressure via a throttle 210 when the valve 14 is open, ie when the airbag 16 is filled.
  • the throttle 210 can be set so that it takes, for example, 2 minutes until the buffer memory 208 has run out.
  • the valve 212 is opened so that gas is directed from the pressure chamber 112 to an amplifier 214, in particular a Venturi nozzle.
  • a low-pressure valve 216 is opened so that gas can escape from the airbag 16.
  • the gas is sucked out of the airbag 16 by the amplifier 214.
  • the suction unit 202 can also have a breathing element 218, for example a mouthpiece, so that the gas from the airbag 16 can be supplied to a user for ventilation.
  • Both an amplifier 214 and a breathing element 218 may be provided. However, it is also possible to provide either the amplifier 214 or the breathing element 218.
  • the low pressure valve 216 prevents the airbag 16 from leaking when the suction is not activated.
  • the rescue system 200 of FIG. 4 enables the following functions in particular:
  • the switching device 116 is in a first position, the pressure chamber 12 is emptied when the release handle 16 is pulled. If, on the other hand, the switching device 116 is switched to the valve 114, the pressure chamber 112 is emptied to fill the airbag 16 when the release handle 26 is pulled. If the selector switch 204 is activated, the airbag 16 is automatically deflated. The air from the airbag 16 can be supplied to the user as breathing air via a breathing element 218. Alternatively, the air from the airbag 16 can be released into the environment, creating a breathing cavity in the snow for the user. If the selector switch 204 is deactivated, the airbag 16 remains inflated after it has been filled from the pressure chamber 12. The pressure chamber 112 can be used for further airbag deployment. For this purpose, the switching device 116 must be coupled to the valve 114.
  • FIG. 5 shows schematically an embodiment of the switching device 116, which is designed as a manual switching switch 230.
  • a switch lever 232 can be manually pivoted by a user so that the Bowden cable 24 is selectively coupled to the activation cable 234 or the activation cable 236.
  • the activation cable 234 is connected to the first valve 14 and the activation cable 236 is connected to the second valve 114.
  • 6 shows an embodiment of the low-pressure valve 216. When pressure is applied via a line 240, the flap 242 is pivoted so that the low-pressure valve 216 can be opened and a gas can flow through it.
  • the rescue system 300 has a first pressure chamber 12 and a second pressure chamber 112, both of which are designed as a pressure hose. Both pressure chambers 12, 112 have valves 20, 120 for filling them. The pressure of the gases in the pressure chambers 12, 112 can be recorded via pressure gauges 302, 304.
  • the first pressure chamber 12 is connected to an airbag 16 via a valve 14 and an optional Venturi nozzle 30.
  • the valve 14 and the Venturi nozzle 30 can be designed as a single component.
  • the second pressure chamber 112 is via a valve 114 and a
  • Control valve 306 connected to the airbag 16.
  • the valve 114 can be integrated into the control valve 306.
  • the trigger system 22 includes a trigger handle 26 designed as a breathing element 218, which is connected to the valve 14 and the control valve 306 via a time element 206.
  • the time element 206 registers the deployment of the airbag 16. After a predetermined time, the time element 206 activates the control valve 306, which results in the airbag 16 being automatically deflated, if necessary with assistance from the gas stored in the pressure chamber 112.
  • the breathing element 218 is not necessarily connected directly to the activation cable or Bowden cable 24, but can also be connected separately, for example to the control valve 306.
  • the triggering system 22 can have mechanical, electrical or pyrotechnic components for triggering the airbag, ie for opening the valve 14.
  • the Selector switch 204 via which a suction unit 202 can be activated, may be provided on the trigger handle 26 or breathing element 218.
  • the pressure chambers 12, 112 are arranged in a protector 320, in particular a back protector.
  • FIG. 8 shows how the airbag 16 is filled via the second pressure chamber 112.
  • the trigger system 22 can open the valve 114 so that gas from the pressure chamber 112 flows through an amplifier, in particular a Venturi nozzle of the control valve 306. As a result, ambient air is sucked in according to arrows 350 and reaches the airbag 16.
  • Fig. 9 illustrates the suction of air from the airbag.
  • the control valve 306 is controlled in such a way that air from the pressure chamber 112 flows through the control valve 306 in such a way that the gas reaches the environment. Air is sucked out of the airbag 16 via an amplifier, in particular a Venturi nozzle.
  • FIG. 10 illustrates the operation of the control valve 306.
  • Gas from the pressure chamber 112 flows into the control valve 306 when the valve 114, which is not shown here, is open. Due to the gas flow, gas flows through an opening 360, which is connected to the airbag 16 362 Gas sucked in from the airbag 16.
  • the opening 360 In order to fill the airbag 16 using gas from the pressure chamber 112, the opening 360 must be separated from the airbag 16 so that ambient air can be sucked in and the opening 364 must be connected to the airbag 16 in order to ensure its filling. This reassignment of the connections can be done using appropriate valves.
  • FIG. 11 shows a carrying system 412 designed as a backpack, on which an airbag 414 is arranged, which is shown in the inflated state.
  • the airbag 414 Before inflation, the airbag 414 is arranged inside the carrying system 412.
  • the airbag 414 has a first chamber 418, which is connected to a first pressure chamber 422 via a first valve 420.
  • the first valve 420 can be opened by a trigger system, not shown here, for example as described above, so that gas can flow from the pressure chamber 422 into the first chamber 418 and inflate it.
  • a plurality of second chambers 424, 426 are provided in the exemplary embodiment shown. For the idea of the invention, it is sufficient to provide at least one first chamber 418 and at least one second chamber 424, 426. However, it is preferred if several second chambers 424, 426 are provided.
  • the airbag area 428 shown in the second chamber 426 which represents a wall of the second chamber 426, is hidden.
  • a shut-off device 430 is arranged on the airbag area 428.
  • the airbag 414 deploys. This creates a negative pressure in the second chambers 424, 426. This can be compensated for by ambient air flowing through the shut-off element 430 into the second chambers 424, 426.
  • the shut-off device 430 is closed so that the air cannot escape from the second chambers 424, 426 again.
  • the shut-off device 430 can be opened manually, in particular without tools, in order to specifically allow air to escape from the second chambers 424, 426.
  • the airbag area 428 can be connected to the remaining airbag 414 at connection points 432. This can be done, for example, by sewing, gluing and/or taping. In principle, however, it is also conceivable that the outer shell of the airbag 414 is at least predominantly continuous.
  • a common wall 434 of the first and second chambers 418, 424, 426 can also be attached to the connection areas 432. This can also be done by sewing, gluing and/or taping. All of the features described above can also be implemented in the design of FIG. 11.
  • FIG. 12 shows an inflated (main) airbag 514.
  • the airbag 514 is inflated via a filling channel 540, which is connected to a pressure chamber.
  • the filling channel 440 branches into a filling channel section 542, which leads to the airbag 514, and a filling channel section 544, which leads to a wing 516 to which the breathing device 518 is connected.
  • An exhalation line 46 is arranged in the wing 516, which is connected to the exhalation area of the breathing device 518 and opens into an exhalation opening 548 of the wing 516.
  • the exhalation line 546 unfolds automatically.
  • the breathing device 518 protrudes slightly beyond the wing 516 on the user side, so that ambient air can be inhaled through corresponding openings.
  • the wing 516 is pumped back, i.e. H. Deflating the airbag 514 does not deflate so that a victim can continue to breathe.
  • the filling channel section 544 is also not emptied.

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  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Lowering Means (AREA)

Abstract

L'invention divulgue un système de sauvetage (10, 10, 200) comprenant un coussin de sécurité gonflable (16) et au moins une chambre de pression (12, 112) à laquelle le coussin de sécurité gonflable (16) est relié par l'intermédiaire d'une vanne (14, 114), la chambre de pression (12, 112) étant pourvue d'un orifice (18) pour remplir la chambre de pression (12, 1112) avec du gaz.
PCT/EP2023/073647 2022-08-29 2023-08-29 Système de sauvetage comprenant un coussin de sécurité gonflable à flottabilité gonflable WO2024047029A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102022121789.2 2022-08-29
DE102022121789 2022-08-29
DE102022123470.3A DE102022123470A1 (de) 2022-08-29 2022-09-14 Rettungssystem umfassend einen aufblasbaren Auftriebsairbag
DE102022123470.3 2022-09-14

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WO2024047029A1 true WO2024047029A1 (fr) 2024-03-07

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PCT/EP2023/073647 WO2024047029A1 (fr) 2022-08-29 2023-08-29 Système de sauvetage comprenant un coussin de sécurité gonflable à flottabilité gonflable

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118494723A (zh) * 2024-07-08 2024-08-16 西安腾谦电子科技有限公司 一种自适应浮力救生带及其应用方法

Citations (5)

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Publication number Priority date Publication date Assignee Title
US4635754A (en) * 1982-10-06 1987-01-13 Firma Peter Aschauer Rescue from an avalanche
US6270386B1 (en) * 1997-11-05 2001-08-07 Avagear Inc. Avalanche life-preserving jacket with airbag
US20060005831A1 (en) * 2004-07-06 2006-01-12 Stewart Robert E Lifesaving floatation and breathing device
EP2700433A2 (fr) 2012-08-24 2014-02-26 Black Diamond Equipment AG Systèmes et procédés de protection d'avalanche gonflable avec regonflage
EP3370834A1 (fr) 2015-11-05 2018-09-12 Mamaloha GmbH Dispositif de protection en cas d'avalanche

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4635754A (en) * 1982-10-06 1987-01-13 Firma Peter Aschauer Rescue from an avalanche
US6270386B1 (en) * 1997-11-05 2001-08-07 Avagear Inc. Avalanche life-preserving jacket with airbag
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