WO2023051875A1 - Masque de protection respiratoire - Google Patents

Masque de protection respiratoire Download PDF

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Publication number
WO2023051875A1
WO2023051875A1 PCT/DE2022/100733 DE2022100733W WO2023051875A1 WO 2023051875 A1 WO2023051875 A1 WO 2023051875A1 DE 2022100733 W DE2022100733 W DE 2022100733W WO 2023051875 A1 WO2023051875 A1 WO 2023051875A1
Authority
WO
WIPO (PCT)
Prior art keywords
mask
respirator
valve
housing
wearer
Prior art date
Application number
PCT/DE2022/100733
Other languages
German (de)
English (en)
Inventor
Herbert Hatzlhoffer
Original Assignee
Herbert Hatzlhoffer
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 DE102021125599.6A external-priority patent/DE102021125599B4/de
Application filed by Herbert Hatzlhoffer filed Critical Herbert Hatzlhoffer
Publication of WO2023051875A1 publication Critical patent/WO2023051875A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/10—Respiratory apparatus with filter elements
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/006—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort with pumps for forced ventilation
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/02—Masks
    • A62B18/025—Halfmasks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes

Definitions

  • the present invention relates to a respirator designed as a half mask with control of the breathing air via micro-fans and electronic voice control.
  • the invention also relates to a respirator designed as a half mask in combination with a mask box for storing, loading, cleaning and disinfecting the respirator.
  • Respirator masks are generally used to protect the wearer from airborne pollutants.
  • respirator masks are divided into full masks and half and quarter masks. With a half mask, the mouth and nose of the wearer are enclosed by a mask base. The eye area is left out. In contrast to the full face mask, the sealing line here runs over the nose area.
  • Half masks are usually designed as particle-filtering half masks (English: filtering face piece, FFP).
  • Particle-filtering half masks are available in three different classes (P1, P2, P3), with the classification being based in particular on the permissible total leakage.
  • the basic mask body of such particle-filtering half masks usually consists entirely of the filter material, usually a non-woven material, so that the filter cannot be replaced. This also means that such masks must be completely disposed of after use or when the filter is exhausted. Although this makes the masks very hygienic, large quantities of used masks accumulate, especially during a pandemic, which have to be disposed of, which ultimately entails a not inconsiderable environmental problem.
  • particle-filtering half masks of this type are perceived as disruptive when breathing, since breathing out through the mask in particular is made more difficult. Wearing the mask is usually perceived as uncomfortable and annoying by the wearer. It is therefore known in the prior art to equip such particle-filtering half masks with exhalation valves. In this way, the breathing resistance can be reduced and the moisture in the breathing air can escape through the valve.
  • WO 2017/182388 A1 discloses a breathing mask for filtering the breathing air of a wearer of the breathing mask, which has a mask base for covering the nose and mouth of the wearer and a breathing valve arrangement arranged on the mask base.
  • the main body of the mask is made of an air-permeable filter material and thus forms the filter of the mask itself.
  • the breathing valve assembly is located at a central location near the wearer's mouth and is preferably configured as an exhalation valve assembly.
  • DE 10 2018 125 228 A1 describes a modular respiratory protection device with a base body that is designed in such a way that most of the components installed in the mask can be replaced without tools and can therefore be adapted to the respective needs.
  • the base body has at least two receptacles for a ventilation element, with an inlet valve being arranged in one of the receptacles and an outlet valve being arranged in the second receptacle.
  • DE 20 2020 102 639 111 discloses a reusable breathing mask which comprises three or more valves, each of which is equipped either with replaceable disposable filters or with replaceable and disinfectable reusable filters each of the valves being adjustable by the wearer of the mask to serve as either an inhalation or exhalation valve.
  • the respirators constructed in this way have the disadvantage that the ventilation and venting area of the mask are separated from one another, with the breathing air circulation being unregulated, so that breathing is still difficult and wearing the mask continues to be perceived as uncomfortable and annoying.
  • respirator mask that provides a high level of protection for the user and those around him, is convenient to use and is perceived as comfortable and not annoying when worn.
  • respirator mask concept was developed in which the safety and wearing comfort of the mask are improved with the help of additional functional components built into the respirator. Since these additional functional components increase the cost of manufacturing the respirator, the concept provides for specifying a reusable mask that, in combination with a mask box for storing, loading, cleaning and disinfecting the respirator, can be reused as often as desired, so that given increased safety and better wearing comfort justify the higher production costs.
  • the aim is to offer a completely new type of respirator as a series product in which the wearer's breathing air is filtered and cleaned in such a way that it is completely protected from particles, dust, viruses and bacteria, while the wearer's exhaled air is also filtered and cleaned at the same time , so no viruses or bacteria that may already be present in the wearer can be released into the environment or environment.
  • the aim of the concept is to provide personal, individually adapted protective equipment that can be used, for example, in medical operations with the highest hygienic requirements.
  • breathing is supported with the help of micro-ventilators and that a voice device is also provided, which enables the mask wearer to communicate unhindered, which of course also means that the volume can be adjusted individually.
  • the breathing mask can be individually adapted to the different head and face shapes.
  • the material selected for the mask is impermeable to air, elastic and deformable to such an extent that the main body of the mask lies tightly against the facial skin of the mask wearer, so that air circulation only takes place via the inhalation and exhalation valves.
  • the material for the mask base body is preferably selected from the group of plastics, thermoplastics, duroplastics, elastomers, polyethylene, caoutchouc, rubber, polysiloxanes, silicones, carbon or combinations of these materials, composite materials also being advantageously used. Criteria for the selection of materials are in particular durability, resistance to disinfectants and cleaning agents and skin compatibility.
  • the air supply and exhaust for the wearer of the mask and the respective application should be designed and adjustable in such a way that the effort required for breathing corresponds to that which a healthy person would have in a contamination-free environment without a mask. It is intended that the respirator mask itself is impermeable to air and that all air exchange takes place exclusively via the filters and valves, whereby the mask should work for up to four hours without an external cable connection at maximum performance. The time can be doubled up to eight hours using an external cable connection to an external energy storage device.
  • the solution according to the invention thus consists of a respirator designed as a half mask, which has the following components:
  • a mask base body for covering the mouth and nose area of the mask wearer with an inner side facing the face of the mask wearer and an outwardly directed outside, wherein the mask base body has at least one opening provided as a receiving opening for further mask components on its right and left side,
  • the mask housing is designed separately for the right and left half of the mask, with the right and left mask housing in turn being constructed in two parts with an inner mask housing facing the mask base body and an outer mask housing facing outwards, with the inner and outer Mask housing each have three corresponding, coordinated recordings for the different functional components of the respirator, so that the entire mask housing has a total of six recordings for the different functional components.
  • the different functional components include two valves, two micro-fans, a speech arrangement and an energy source, with a first of the two valves being constructed as an inhalation valve and the second valve as an exhalation valve, and with the speech arrangement being a microphone, at least one amplifier and at least one speaker.
  • the microfans are preferably controlled via a microcontroller with appropriate software, with the fans themselves not being located on the circuit board but being connected via plugs.
  • the energy requirement for controlling and operating the functional components is covered, for example, by a rechargeable battery, which itself is installed as a functional component in the mask and also connected to the microcontroller via a connector.
  • a battery management controller should be used to protect the battery from damage or fire, which controls and monitors the charging of the battery and disconnects the battery in the event of overvoltage and undervoltage. As an additional security, it makes sense that in the event of overcurrent, a hardware fuse is triggered and disconnects the battery.
  • the rechargeable battery is preferably charged inductively via the microcontroller with the aid of a charging coil. The battery management controller also protects the battery when it is being charged.
  • an external rechargeable battery is also advantageously provided in order to extend the operating time of the respiratory protection mask.
  • This external battery can power the mask via a USB connector and can be attached to the belt of the mask wearer, for example.
  • the breathing mask according to the invention advantageously also has a speech or voice amplifier.
  • the speech or voice amplifier is preferably integrated in the mouth area of the mask body, which can be implemented without space problems if the respirator mask has two laterally arranged valves so that the central area is available for a speech or voice amplifier.
  • the object of a particularly advantageous embodiment of the present invention is therefore a speech arrangement with a microphone, a loudspeaker and preferably two amplifiers, the volume being regulated, for example, via a digital potentiometer which is connected to the second amplifier stage and controlled by the microcontroller.
  • capacitive buttons are provided for specifying the values for the volume control. Capacitive buttons that respond to touch are also used advantageously to regulate the air flow.
  • the speech arrangement and the micro-fans can also be controlled via a voice input, which can advantageously be implemented with appropriate software implemented in the microcontroller.
  • the at least one mask filter element comprises a filter carrier which corresponds to the outer mask housing and can be placed in a form-fitting manner on the mask housing and an exchangeable filter arranged therein.
  • the filter can be made up of several fleece layers, with spacers preferably being inserted between the layers in order to keep the resistance to the air flow low without reducing the filter effect.
  • half of the six receptacles arranged in the housings are arranged laterally in a horizontal row at the level of the mouth of the mask wearer, with the outer receptacles having a valve, the two middle receptacles each having a micro-fan and the inner receptacles alternatively having the Speech arrangement or the energy source are occupied, wherein the energy source is preferably a battery.
  • the valve in the right or left half of the housing is designed as an inhalation valve, while the second valve in the other half of the housing then acts as an exhalation valve, with the two micro-fans being switched and arranged in such a way that a constant flow of air flows from the inhalation valve to the exhalation valve.
  • a relatively simple valve is preferably used as the valve, the valve comprising a carrier arranged in a membrane area having a circular air opening and a matching circular elastic membrane covering the area.
  • the elastic membrane is arranged on the carrier and fastened in such a way that the membrane can be folded away to the rear in the direction of flow. If the direction of flow reverses, the membrane is pressed against the carrier and thus closes the valve.
  • valves have a valve membrane that can be folded over between a release position and a closed position, which releases an air opening in the release position and closes the air opening in the closed position.
  • a short support axis is formed in the diaphragm portion of the valve, on which the valve diaphragm is arranged concentrically, the valve diaphragm being circular as viewed in the axis direction (support axis direction).
  • the air opening in the corresponding valve can be reliably closed.
  • the valve membrane sits on a valve seat in the membrane area.
  • the valve membrane is preferably completely flat and does not sag. It is important that in its closed position the valve membrane rests against the valve seat in a fluid-tight manner and completely closes the air opening (ie breathing opening) in a fluid-tight manner.
  • the support axis can also serve to limit a movement of the valve membrane to a linear movement when the valve membrane is displaced between the release position and the closed position. The valve membrane can thus lift off the valve seat supported by the support axis when inhaling or exhaling, so that the air opening is released in the release position.
  • exhalation valve and the at least one inhalation valve are identical in structure. Identical parts can therefore be used as inhalation and exhalation valves, which are now installed according to their functional direction, so that the exhalation valve is an inhalation valve that is installed and rotated by 180 degrees.
  • a replaceable or regenerable filter is located upstream or downstream of the valves in the direction of flow, not only the air inhaled by the wearer of the mask is filtered, but also the air exhaled by the wearer.
  • the respirator thus not only protects the wearer, but also third parties from infections.
  • the respirator can be used several times.
  • the exhausted filter can be easily replaced and disposed of, or it can be cleaned and then used again.
  • different types of filters can be used in the respirator. In this way, the respirator can be easily adapted to the conditions prevailing in the area of application.
  • the replaceable filters of the mask can preferably have different colors, so that the different protection classes (for example P1, P2, P3) can be assigned easily and reliably.
  • the respirator mask is of the general structure and of the included
  • the materials used are designed in such a way that they can be used not only over a longer period of time, but also over and over again, with the used filters having to be replaced if necessary and the mask itself having to be completely cleaned and disinfected regularly to ensure maximum protection.
  • PTFE polytetrafluoroethylene
  • PET PET supporting fleece
  • PE polyethylene
  • the thickness of the filter medium is between 0.3 and 0.5 mm with a basis weight of 80 to 120 g/m 2 .
  • the subject of a further advantageous embodiment of the present invention is a combined behind-the-head and overhead holder that can be operated with one hand as a mask holder with two lateral holding brackets arranged in the ear area of the mask wearer and leaving the mask wearer's ear free, with a height-adjustable overhead holding device in the extension of the two holding brackets to the rear and behind it a length-adjustable rear head holding device are arranged.
  • the overhead holding device preferably has a vertically arranged, upward-pointing flexible tab in the extension of the first holding bracket and, oppositely, in the extension of the second holding bracket, a corresponding flexible connecting piece that is also vertically arranged and points upwards.
  • the back of the head holding device as an extension of the first holding bracket advantageously has a horizontally arranged flexible tab, the tab engaging in a corresponding fastening element which is arranged on the opposite second holding bracket.
  • a particularly advantageous embodiment of the present invention provides that the respiratory mask is combined with a separate mask box, specially adapted to the respiratory mask and comprising a storage container and a container lid, for storing, loading, cleaning and disinfecting the respiratory mask, with the mask box having suitable receptacles for storing the respirator, for energy transfer when charging the battery and for operating the micro-fans when disinfecting the respirator.
  • the mask box includes, as additional functional components, a mains connection, a switch, a processor, at least one current converter, a display for showing the state of charge, a charging controller with a charging coil, an ozone generator, at least one ozone sensor, a fan, a catalyst for the ozone depletion, a locking device monitored by a reed sensor, several buttons for operating the mask box and a charging socket arranged on the outside of the mask box for charging an additional battery for operating the respirator.
  • the mask box is controlled via a processor equipped with appropriate software, with a system being advantageously used in which functionalities such as Bluetooth and Ethernet are integrated.
  • the power supply should preferably come from the mains, with the mask box being switched on and off via a switch.
  • the mains voltage is preferably converted into the voltage required for charging the mask via an AC/DC converter and a number of DC/DC converters.
  • the battery of the respiratory protection mask is charged automatically after the mask has been placed on the holders provided in the mask box, with the charging status being shown on a display arranged on the outside of the box.
  • This process is advantageously regulated via a controller with a suitable charging coil. It is envisaged that the charging process itself will take a maximum of two hours, so that it may only be necessary to bridge a short period of time without a breathing mask.
  • a preferred embodiment of the mask box provides that operation is possible directly on the mask box itself.
  • buttons can be provided which are arranged on the display and are connected to the microcontroller.
  • a further advantageous embodiment of the respirator box provides that the disinfection of the respirator is carried out with the aid of ozone, with an ozone generator integrated in the mask box being used to form the ozone, which is connected via transistors.
  • the recordings in the mask box are advantageously designed in such a way that the micro-fans of the respirator mask even distribution of the ozone-containing air in the mask box.
  • an ozone sensor is advantageously used, which is combined with the locking of the box, which is electronically closed as soon as the limit value is exceeded. This prevents the box from being opened and a harmful amount of ozone escaping into the environment.
  • a reed switch is preferably additionally provided, which monitors the disinfection process and ensures that the mask box is closed during disinfection. If the mask box is opened by force, the disinfection process is automatically interrupted.
  • a preferred embodiment of the mask box provides that it is equipped with a catalyst that is capable of accelerate the ozone decomposition process and actively reduce the ozone to oxygen.
  • a catalytic converter is advantageously used, which is constructed as a filter and through which the ozone-containing air flows.
  • the catalyst is preferably tubular and combined with an additional fan, which guides the ozone-containing air to the catalyst and directs the gas flow through the catalyst.
  • the mask box is intended as a supplement to the breathing mask in order to ensure its function and readiness for use.
  • a charging receptacle for an external battery is advantageously also formed on an outer wall of the mask box, into which the external battery provided for extending the operating time of the breathing mask can be inserted and charged there via the mask box. The Charging takes place automatically when the battery is plugged in and ends when it is fully charged, which is shown on the display.
  • Figure 1 is a perspective view of a complete respirator with bracket
  • FIG. 2 shows an exploded view of the respirator from FIG. 1 without a holder in a frontal perspective
  • FIG 3 is a rear exploded view of the respirator of Figure 1
  • Figure 4 is a front perspective view of a fully assembled
  • FIG. 5 shows the rear perspective of the respirator from FIG. 4,
  • FIG. 6 shows the front view of the main body of the respirator from FIG. 1 in perspective
  • FIG. 7 shows the side view of the mask base body from FIG. 6,
  • FIG. 8 a side half of an inner mask housing viewed from the rear
  • Figure 9 shows the inner mask housing of Figure 8 viewed from the front
  • FIG. 10 shows a side half of an outer mask housing from the rear perspective
  • FIG. 11 shows the perspective front view of the outer mask housing from FIG. 10,
  • FIG. 12 shows the rear perspective of a filter element
  • FIG. 13 shows the perspective front view of a filter element cover
  • FIG. 14 a closed mask box in perspective
  • FIG. 15 shows a perspective view of the mask box from FIG.
  • FIG. 16 shows a plan view of the mask box from FIG. 15 and
  • FIG. 17 shows a plan view of an unoccupied mask box.
  • Figure 1 is a perspective view of a complete respirator mask 1000.
  • the mask base body 100 is explained in detail together with the above-mentioned individual components in connection with Figures 2 and 3, while primarily the details of the mask mount 700 are discussed in detail below.
  • the mask holder 700 is connected to the mask base body 100 via retaining bracket hinges 140, with the mask holder 700 having a relatively complicated structure compared to the usual mask holders, which usually only consist of rubber bands with which the mask is held behind the head or behind the ears.
  • the mask holder 700 is designed as a combined rear and overhead holder, the mask holder 700 having two retaining brackets 710 with which the mask holder 700 is attached to the retaining bracket hinges 140 of the mask base body 100 .
  • the retaining brackets 710 run past the ear of the mask wearer, protruding outwards from the ear in the area of the ear, so that the ear of the mask wearer is not touched and the mask wearer is not additionally disturbed by an unusual touch.
  • an overhead holding device 720 Arranged as an extension of the left-hand holding bracket 710 seen from the front is an overhead holding device 720 which has a vertically arranged, upward-pointing flexible strap 721 .
  • this flexible tab 721 comes into operative connection with the flexible connecting counterpart 722, which is an extension of the opposite arranged headband 710 is arranged, wherein the tab 721 engages in the fastener 723 as in a belt buckle.
  • This overhead holding device 720 is combined with a rear-head holding device 730, which also has a flexible, but horizontally aligned strap 731 as an extension of the right-hand holding bracket 710 seen from the front.
  • the tab 731 engages in a corresponding fastening element 732, which is arranged opposite in extension of the left-hand holding bracket 710 on the back-of-the-head holding device 730.
  • the subject of FIG. 2 is an exploded representation of the respirator mask 1000 from FIG. 1 without the holder 700 in the frontal perspective.
  • the mask base body 100 is adapted to the shape of the human face so that it covers the mouth and nose area of the mask wearer.
  • the mask base body 100 has an inner side 110 pointing towards the wearer's face and an outer side 120 pointing outwards, on which the individual components of the respirator mask 1000 are arranged.
  • two receiving openings 130 are provided on both sides of the face halves as openings for the individual components.
  • the material for the respiratory protection mask 1000 is impermeable to air and the respiratory protection mask 1000 itself is airtight on the face, so that the air exchange for breathing takes place exclusively via the valves and through the filters.
  • the mask base body 100 also has a sealing lip 150 on its inside 110.
  • the housing 200 connects to the mask body 100, which is designed separately for the right and left half of the mask, the right and left mask housing 200 each being constructed in two parts with a mask body 100 directed to the inner mask housing 210 and a outwardly directed outer mask housing 220.
  • the inner and outer mask housings 210, 220 each have three corresponding, coordinated receptacles 230 for the different functional components provided for the respiratory protection mask 1000.
  • the entire mask housing 200 thus has a total of six receptacles for the different functional components.
  • the different functional components include two valve membranes 510, two micro-fans 520, a speaker assembly 530 and a battery 540.
  • the speaker assembly 530 includes a microphone, a loudspeaker and at least one amplifier, although the individual components mentioned above are not detailed in the selected representation are recognizable.
  • the six housings 230 formed in the half-casings 200 are arranged in a row and are located at the level of the mouth of the mask wearer, the two outer housings 231 with the valve membranes 510, the two central housings 232 each with a microfan 520 and the left inner one Recording 233 are occupied in the present case with the speaker assembly 530, while the right inner recording 233 for the battery 540 is provided.
  • the information on the right and left refers to the direction of view of the mask wearer.
  • a filter element 300 is mounted in front of the housing 200, which comprises a filter carrier and a filter arranged therein, with the filter element 300 being arranged with a precise fit and form-fitting on the front side 222 of the outer housing 220 in front of the receptacles 231 and 232 for the valve membranes 510 and micro-fan 520 .
  • the filter element 300 is in turn covered with a filter element cover 400 .
  • the individual functional components are screwed to the mask base body, which is symbolized by the screws 600, which are also shown. Of course, seals are provided between the individual functional components to ensure that no potentially contaminated external air can get into the mask.
  • FIG. 3 The same embodiment of the respirator mask 1000 as in FIG. 2 is also shown in FIG. 3 as an exploded view, but from a rear view—so to speak in the direction of view of the mask wearer. In this way of representation, some details can be seen better than in FIG. 2, to which special reference is then made, while the description of the figures is otherwise kept relatively short.
  • the representation begins with the mask base body 100, of which the inside 110 of the mask base body 100 together with the circumferential sealing lip 150 can be seen very well in this representation.
  • attention should be drawn to the two receiving openings 130 of the right-hand half of the mask the dimensions and arrangement of which in relation to the mask base body 100 now come out very clearly.
  • the housing 200 together with the functional components 510 , 520 , 530 and 540 is positioned in front of the mask base body 100 .
  • the details of the backs of the inner and outer housings 211 and 221 with the housing receptacles 231, 232 and 233 for the functional components 510, 520 and 540 are clearly visible in this representation, with the viewing angle being on the right-hand side in the viewing direction of the mask wearer the mask aims.
  • the filter elements 300 are arranged in front of the housing 200 and the filter element covers 400 in turn in front of them. Further details will be discussed later in the individual illustrations of the components.
  • FIGS. 4 and 5 each show a perspective view of the completely assembled breathing mask 1000 in a front view (FIG. 4) from a position opposite the mask wearer and from behind in the mask wearer's line of sight (FIG. 5).
  • the front view clearly shows that the housing 200, together with the filter element covers 400, covers almost the entire mask base body 100, of which only small parts of the outside 120 can be seen.
  • a loudspeaker 531 and four buttons 532 can be seen in the corresponding operating openings on the right half of the front side 222 of the mask housing, seen from the front, behind which the speech arrangement is set up.
  • the capacitive buttons 532 are used for volume control and airflow adjustment.
  • the mask base body 100 is shown as an individual part from different perspectives, with the position, the size and the spatial arrangement of the receiving openings 130 being illustrated in particular.
  • the different alignment of the lateral, horizontally extending receiving openings 131 and the middle, vertically aligned receiving openings 132 catches the eye.
  • Figures 8 to 11 show examples of some important individual components of the mask housing 200 in detail.
  • the subject of Figures 8 and 9 is the back 211 and the front 212 of the right half of the inner mask housing 210, seen in the direction of view of the mask wearer, with two ventilation grilles 213 being visible on the back 211 of the inner mask housing 210 in Figure 8, which 9 on the front side 212 of the inner mask housing 210 cover receptacles 231 and 232 for a valve membrane and a micro-fan towards the mask wearer.
  • FIGS. 10 and 11 show the rear side 221 and the front side 222 of the left-hand outer mask housing 220, with the outwardly directed areas of the receptacles 231, 232 and 233 in particular being in the foreground in FIG.
  • Receptacle 231 is provided as part of the valve to receive a valve diaphragm, the valve being selectively adjustable as an inhalation or exhalation valve.
  • the valve comprises a valve seat with a support 235 disposed in a diaphragm area having a circular air opening 234 and a mating circular resilient valve diaphragm intended to cover the area.
  • a short support axis 236 is formed on the carrier 235, on which a concentric arrangement of the valve membrane is provided.
  • valve membrane is not included in the selected representation. However, those skilled in the art should have no difficulty imagining the operation of the valve in conjunction with the valve diaphragm 510 shown in Figures 2 and 3. Whether the valve as Exhalation or inhalation valve operates depends only on which side of the outer housing 220 the valve membrane is located. For example, if the valve membrane is located on the outward-facing front 222, the membrane 510 can only clear a path for air exiting the mask and thus acts as an exhalation valve, while if the valve membrane is positioned on the back 221 of the outer housing 220, the path for the air coming from outside is released.
  • the slightly larger circular opening of the seat 232 is provided for the micro-fan, which supports the air circulation in the mask from the inhalation valve to the exhalation valve depending on the opening direction of the valve.
  • the individual components on the front side 222 which are identical to those on the rear side 221, are no longer given separate reference numbers.
  • the receiving opening 223 for the filter element is marked, onto which the filter element 300 shown in the following FIG. 12 is placed with a precise fit and in a fluid-tight manner.
  • FIG. 12 is a perspective representation of the filter element 300 viewed from its rear side 310 .
  • the filter fleece which is inserted into the filter carrier 320 during operation of the mask and thus completes the filter element 300, is not shown.
  • FIG. 13 shows the front side 410 of the filter element cover 400 with a total of four lateral ventilation grilles 420 through which air flows when inhaling and exhaling.
  • a particularly advantageous embodiment of the breathing mask described above provides that it is combined with a separate mask box specially adapted to the breathing mask for storing, loading, cleaning and disinfecting the breathing mask.
  • the mask box 800 is explained in detail in the following FIGS. 14 to 17 with the aid of drawings.
  • FIG. 14 shows the closed mask box 800 in perspective.
  • the lid 820 and two outer walls 810 can be seen from the selected viewing angle.
  • a lock 830 is arranged in operative connection with the cover 820, with the help of which the mask box can be locked in an airtight manner.
  • On the front 812 you can see a display 840 and a Switch 850.
  • the mask box which preferably has a mains connection, is put into operation with the switch 850, while the charging and disinfection processes in the mask box 800 are logged and displayed on the display 840.
  • On the right side you can also see an external charging socket 860 for an external battery for the breathing mask, which can conveniently be charged in the same box as the mask itself.
  • FIG. 15 shows the mask box 800 from FIG. 14 without a cover 820, so that it is possible to look into the receiving space 870 and a respirator mask 1000 stored therein, with the inner wall 880 also being visible.
  • the locking magnets 831 distributed over the entire upper side of the chamber walls and the seal 832 covering the upper side should be mentioned in particular, with the locking magnets 831 intended to ensure the secure locking of the mask box when the mask is disinfected and the seal 832 also intended to ensure that no disinfectant can escape from the mask box.
  • Figures 16 and 17 show the open mask box in a plan view, once ( Figure 16) with a protective mask 1000 stored in it and once ( Figure 17) without a stored object, so that in Figure 17 in particular the receptacles 890 for the protective mask 1000 can be seen .

Abstract

L'invention concerne un masque facial de protection respiratoire (1000) comprenant une commande de l'air respiratoire par l'intermédiaire de microventilateurs (520) et un agencement d'intercom électronique (530), le masque de protection respiratoire (1000) ayant une partie principale de masque (100) et un boîtier de masque (200) disposé sur celui-ci, et le boîtier de masque (200) contenant un certain nombre de composants fonctionnels différents.
PCT/DE2022/100733 2021-10-03 2022-10-01 Masque de protection respiratoire WO2023051875A1 (fr)

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016157159A1 (fr) * 2015-04-03 2016-10-06 Microsfere Pte. Ltd. Masques respiratoires, systèmes et procédés
WO2017182388A1 (fr) 2016-04-21 2017-10-26 Uvex Arbeitsschutz Gmbh Masque respiratoire et membrane destinée à ce masque
DE102018125228A1 (de) 2018-10-11 2020-04-16 Pr-Technik Gmbh Modulare Atemschutzvorrichtung
DE202020102639U1 (de) 2020-04-24 2020-05-19 Biotec GmbH Umwelt-Analytik-Beratung-Service Mehrweg-Atemmaske
EP3666292A1 (fr) * 2018-12-10 2020-06-17 LG Electronics Inc. Appareil de stockage de masques
EP3673960A2 (fr) * 2018-12-26 2020-07-01 LG Electronics Inc. Dispositif de masque
EP3673959A1 (fr) * 2018-12-26 2020-07-01 LG Electronics Inc. Dispositif de masque
EP3673958A1 (fr) * 2018-12-26 2020-07-01 LG Electronics Inc. Dispositif de masque
EP3919130A1 (fr) * 2020-06-05 2021-12-08 LG Electronics, Inc. Appareil de masquage
EP3919132A1 (fr) * 2020-06-05 2021-12-08 LG Electronics Inc. Appareil de masquage
EP3919133A1 (fr) * 2020-06-05 2021-12-08 LG Electronics Inc. Appareil de masquage
WO2022055994A1 (fr) * 2020-09-09 2022-03-17 One Science LLC Masque facial

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016157159A1 (fr) * 2015-04-03 2016-10-06 Microsfere Pte. Ltd. Masques respiratoires, systèmes et procédés
WO2017182388A1 (fr) 2016-04-21 2017-10-26 Uvex Arbeitsschutz Gmbh Masque respiratoire et membrane destinée à ce masque
DE102018125228A1 (de) 2018-10-11 2020-04-16 Pr-Technik Gmbh Modulare Atemschutzvorrichtung
EP3666292A1 (fr) * 2018-12-10 2020-06-17 LG Electronics Inc. Appareil de stockage de masques
EP3673960A2 (fr) * 2018-12-26 2020-07-01 LG Electronics Inc. Dispositif de masque
EP3673959A1 (fr) * 2018-12-26 2020-07-01 LG Electronics Inc. Dispositif de masque
EP3673958A1 (fr) * 2018-12-26 2020-07-01 LG Electronics Inc. Dispositif de masque
DE202020102639U1 (de) 2020-04-24 2020-05-19 Biotec GmbH Umwelt-Analytik-Beratung-Service Mehrweg-Atemmaske
EP3919130A1 (fr) * 2020-06-05 2021-12-08 LG Electronics, Inc. Appareil de masquage
EP3919132A1 (fr) * 2020-06-05 2021-12-08 LG Electronics Inc. Appareil de masquage
EP3919133A1 (fr) * 2020-06-05 2021-12-08 LG Electronics Inc. Appareil de masquage
WO2022055994A1 (fr) * 2020-09-09 2022-03-17 One Science LLC Masque facial

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