EP3900796A1 - Masque de protection - Google Patents

Masque de protection Download PDF

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Publication number
EP3900796A1
EP3900796A1 EP21157272.2A EP21157272A EP3900796A1 EP 3900796 A1 EP3900796 A1 EP 3900796A1 EP 21157272 A EP21157272 A EP 21157272A EP 3900796 A1 EP3900796 A1 EP 3900796A1
Authority
EP
European Patent Office
Prior art keywords
filter
protective mask
mask body
air supply
mask according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21157272.2A
Other languages
German (de)
English (en)
Inventor
Robert Kopetzky
Gunter Maierhofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodius GmbH
Original Assignee
Rhodius 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
Application filed by Rhodius GmbH filed Critical Rhodius GmbH
Publication of EP3900796A1 publication Critical patent/EP3900796A1/fr
Pending legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • 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

Definitions

  • the present invention relates to a protective mask which protects against inhalation or spreading of microparticles, in particular against spreading of viruses transported on microparticles.
  • Simple MNS masks are known from the prior art, in which the mouth and nose are covered with a cloth.
  • the cloth does not actually function as an inlet or outlet filter, as the mask does not fit tightly against the body.
  • Such masks only prevent droplets from being thrown into the air when coughing or sneezing. They are therefore primarily used for external protection and only to a very limited extent for self-protection.
  • the mask body is also the filter at the same time.
  • external, exchangeable filters e.g. gas masks
  • these are limited to filtering the incoming air.
  • flow technology these simple systems are not a good solution.
  • the filter is not evenly exposed to the flow and it is by far not possible to use the entire and already limited area.
  • the object of the present invention is to create a protective mask with an improved protective effect, which has an improved filter effect while being comfortable to wear.
  • a protective mask with a mask body which is designed to abut the nose and mouth in a sealed manner.
  • At least one holding element is provided for fastening the mask body to the head of a person.
  • Breathing air is supplied into the interior of the mask body via an air supply channel and the breathing air is discharged via an air discharge channel which is provided with an outlet valve and which is designed separately from the air supply channel.
  • an outlet filter is provided which is fluidically connected to the mask body via the air discharge channel, but which is not integrated into the mask body.
  • the outlet filter can be designed with a very low flow resistance, which makes breathing easier.
  • the volume of the outlet filter can also be selected to be very large without impairing the wearing comfort.
  • the mask body can be made significantly smaller compared to MNS masks, so that the willingness to wear the protective mask is increased.
  • the protective mask according to the invention in contrast to other masks - there is no fogging of spectacle lenses, which further increases the wearing comfort.
  • an inlet filter can be provided which is fluidically connected to the mask body via the air supply channel, but which is not integrated into the mask body.
  • the outlet filter and / or the inlet filter are designed to rest around the neck, in particular curved or bent. This makes it possible to provide an extremely large filter volume without impairing the wearing comfort.
  • the outlet filter or filters can be designed in such a way that they nestle against the wearer's neck and can be worn, for example, as a ruff. As a result, the weight of the filter does not rest on the head of the wearer or on the mask body or on the retaining element of the protective mask, but ultimately on the shoulders of the wearer.
  • the outlet filter and / or the inlet filter can be encased in a textile or fabric.
  • this provides protection for the respective filter.
  • the result is an extremely appealing appearance, which in turn increases acceptance.
  • the fabric or textile can, for example, form a sewn protective cover for the filter or filters, but it can also be wrapped or wrapped around the filter as a scarf or scarf. Solutions are also conceivable in which a scarf or scarf by means of at least one fastening means at one point with the filter or the Filtering is connected, so that the wearer of the protective mask can drape the scarf or scarf according to his own ideas and also change it.
  • the outlet filter and / or the inlet filter can be provided with a neck strap, as a result of which the filter or filters can be worn around the neck.
  • a neck strap With such a neck strap, the filters can be easily attached to the body under a sweater or jacket or shirt, with storage in a bag, net or the like also being possible here.
  • the mask body can be made of plastic and / or made transparent, for example as a transparent plastic shell.
  • the mask body can be in good contact with the wearer's face.
  • the nose and lips of the wearer male / female / male
  • transparent mask bodies are known from the field of ventilation masks for rescue services or hospitals. However, these have not yet been used in the field of protective masks for everyday use.
  • Another essential advantage of a plastic mask body is that it can be cleaned or disinfected several times without problems. The protective mask according to the invention can thus be reused over a long period of time.
  • the air supply duct can be provided with an inlet valve.
  • an inlet valve can be dispensed with if the flow resistance of the outlet filter is significantly lower than that of the inlet filter. In other cases, however, the inlet valve ensures that breath air flows through the two filters only in one direction.
  • the volume of the filters can be selected to be comparatively large due to the arrangement which is separate from the mask body.
  • the volume of a filter can be at least 15 ml, in particular at least 25 ml, in particular at least 50 ml and in particular between 100 and 1000 ml.
  • a curved design of the filter or the filter lying around the neck can easily provide a volume between 500 and 1000 ml, in particular between 600 and 800 ml per filter, which reduces the flow resistance accordingly with increasing filter size and thus increases breathing comfort .
  • a closure can be provided with which the inlet filter and the outlet filter can be coupled to one another.
  • This allows the protective mask to be placed around the neck of a wearer when the closure is open.
  • the two filters can then be coupled to one another by means of the fastener, for example with the aid of a Velcro fastener, a magnetic fastener, with hooks and eyes or the like.
  • the air discharge channel and / or the air supply channel can have at least one detachable plug connection.
  • at least one of the filters can be detached from the mask body, so that the protective mask can be put on without any problems even if the filter or filters form an almost closed ring around the neck of the wearer.
  • the air supply duct can have an air hose for an external air supply which is at least 50 cm long.
  • the air does not have to be passed through an inlet filter, but can be external, for example via a plug connection are fed.
  • Such an embodiment is suitable, for example, for taxi drivers, bus drivers, etc.
  • an air supply connection that supplies the air from the outside can be provided for the air hose in the vehicle. External protection for the other occupants of the vehicle is still provided via the outlet filter.
  • the protective mask shown there comprises a mask body 10, which is designed for sealed contact over the nose and mouth.
  • the mask body 10 is fastened to the head of the wearer with the aid of at least one holding element 12, in the illustrated embodiment an elastic band.
  • a hose-shaped air supply channel 14 is provided, which has an inlet valve 20.
  • an air discharge channel 16 is provided which has an outlet valve 18 through which breathing air can be expelled (when the inlet valve is closed).
  • the valves 18 and 20 can be designed as simple check valves and have the effect that breathing air only flows in one flow direction through the inlet channel 14 or the outlet channel 16.
  • an inlet filter 24 is provided at the inlet of the inlet channel 14 and at the outlet of the outlet channel 16, an outlet filter 22 is provided, both of which are fluidically connected to the mask body, but are not integrated into the mask body.
  • inlet filter 24 and outlet filter 22 can be designed with a relatively large volume, so that inlet filter 24 can be designed with a comparatively large inflow area 26 and outlet filter 22 with a comparatively large outflow area 28.
  • the mask body 10 is transparent and made of plastic, so that the nose and mouth can still be seen from the outside.
  • the mask body can also have an injection-molded or inserted sealing lip, for example made of silicone rubber, in order to ensure a tight fit.
  • the two filters 22 and 24 are in the embodiment of FIG Fig. 1 shown purely schematically. These can in particular be designed to rest around the neck of the wearer, in particular bent, curved or as part of a torus or in the form of a collar, a ruff or a part thereof.
  • Both inlet filters and outlet filters are designed in such a way that microparticles and droplets are filtered out in a size that is sufficient as a carrier for viruses, bacteria, etc., for example filters that contain droplets and / or aerosols with a size of 5 ⁇ m, in particular 1 Can filter out ⁇ m and in particular less than 1 ⁇ m.
  • Fig. 2 shows a further embodiment of a protective mask, the same reference numerals being used for the same components.
  • FIG. 2 The embodiment shown corresponds essentially to that of Fig. 1 , but in this embodiment inlet filter 24 and outlet filter 22 are designed to rest around the neck, namely in the form of a curved collar or a ruff. At its rear end, which is in Fig. 2 is not visible, the two filters 22 and 24 can be releasably connected to one another via a closure so that the protective mask can be placed around the neck of the wearer.
  • the air discharge channel 16 or the air supply channel 14 can have at least one detachable plug connection, for example in the area of the connection to the filter or in the area of the connection to the mask body 10.
  • inlet valve 20 and outlet valve 18 are each integrated into the air supply channel 14 and the air discharge channel 16.
  • the two channels 14 and 16 are produced by highly flexible plastic tubes, for example tubes made of grooved silicone rubber or the like, so that a head movement does not lead to the mask body 10 slipping.
  • the filters can be wrapped in a textile or fabric in order to provide an additional filter effect, to protect the filters and to achieve an attractive appearance.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Zoology (AREA)
  • Pulmonology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP21157272.2A 2020-04-20 2021-02-16 Masque de protection Pending EP3900796A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020110723.4A DE102020110723A1 (de) 2020-04-20 2020-04-20 Schutzmaske

Publications (1)

Publication Number Publication Date
EP3900796A1 true EP3900796A1 (fr) 2021-10-27

Family

ID=74661257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21157272.2A Pending EP3900796A1 (fr) 2020-04-20 2021-02-16 Masque de protection

Country Status (2)

Country Link
EP (1) EP3900796A1 (fr)
DE (1) DE102020110723A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002190A1 (fr) * 1992-07-23 1994-02-03 Johannes Geisen Systeme et procede d'amenee ou d'evacuation controlees de l'air respire
FR3067253A3 (fr) * 2017-06-09 2018-12-14 Ecosystem Srl Masque de protection contre l'incendie avec element de filtrage facial
WO2019071296A1 (fr) * 2017-10-13 2019-04-18 Aimwell Holding Pty Ltd Masque respiratoire polyvalent et multifonctionnel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002190A1 (fr) * 1992-07-23 1994-02-03 Johannes Geisen Systeme et procede d'amenee ou d'evacuation controlees de l'air respire
FR3067253A3 (fr) * 2017-06-09 2018-12-14 Ecosystem Srl Masque de protection contre l'incendie avec element de filtrage facial
WO2019071296A1 (fr) * 2017-10-13 2019-04-18 Aimwell Holding Pty Ltd Masque respiratoire polyvalent et multifonctionnel

Also Published As

Publication number Publication date
DE102020110723A1 (de) 2021-10-21

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