EP4590406A1 - Méthode de protection respiratoire et masque transparent - Google Patents
Méthode de protection respiratoire et masque transparentInfo
- Publication number
- EP4590406A1 EP4590406A1 EP23798283.0A EP23798283A EP4590406A1 EP 4590406 A1 EP4590406 A1 EP 4590406A1 EP 23798283 A EP23798283 A EP 23798283A EP 4590406 A1 EP4590406 A1 EP 4590406A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mask
- mask body
- periphery
- membrane
- free end
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
- A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
-
- 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
- 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
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
-
- 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
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/084—Means for fastening gas-masks to heads or helmets
-
- 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
- A62B27/00—Methods or devices for testing respiratory or breathing apparatus for high altitudes
Definitions
- the invention relates to a method of respiratory protection and to a transparent respiratory protection mask with a changeable filter.
- the Australian patent application published under number AU2020102286 relates to a respiratory mask assembly consisting of a substantially piri-shaped mask body intended to come into contact with the face of its user, a stiffening element removably attached on the mask body, on the inner side thereof, a mask covering placed removably on the mask body on the outer side thereof, at least one filter assembly for the entry of air to through the mask covering, the mask body and the stiffening element assembled, and an exhalation assembly forming an air outlet port through the mask body.
- the mask covering has two bands for securing to the user's head and holding the entire mask assembly together.
- the Spanish patent application published under number ES 2 778 000 concerns a reusable respiratory protection mask.
- This mask is intended to be applied to the nose and lower face and to be fixed by means of bands surrounding the ears and the head and which are connected to two circular lateral protrusions comprising filters.
- a protuberance is also provided at the bottom of the mask to accommodate electronic devices.
- This mask is transparent in order to facilitate communication and facial recognition, however it is not adaptable and its entire perimeter is pressed against the face of the person. the user, which does not allow any movement of the jaws, unless it causes the mask to lift or move and therefore leaks, which greatly reduces the effectiveness and reliability of the mask.
- - a transparent mask body whose perimeter comprises an upper part, a right side part, a left side part and a lower part;
- the upper part of the periphery of the mask body has a right curvature and a left curvature which start from its center, curve downwards and rise upwards,
- the membrane projects relative to the mask body having one end fixed to the mask body and a free end, and, at the level of the part upper edge of the mask body, the free end of the membrane moves away perpendicular to the mask body.
- the sealing element designated by the reference 103 and which is best seen in Figures 5 and 6 of these Chinese documents, is a sealing ring (in English, "sealing ring"), having a U-shaped cross section whose free ends have been curved towards each other.
- This mask must be attached both to the user's ears and then around their neck, which increases the user's feeling of discomfort.
- Invention patent No. FR 773 129 proposes a respiratory mask.
- This mask as the description of this patent says and is shown in particular in Figure 4, is designed to be applied by pressure to the user's face. It is therefore impossible for the user of such a mask to speak once he has put on his mask.
- KR 2005 0042986 relates to a transparent mask, which is intended to cover the nose and mouth of its user. As is clear from Figures 2 and 11 of this application, the user cannot speak when wearing the mask because any movement of their lower jaw would result in a loss of sealing.
- the main aim of the invention is to propose a method of respiratory protection using a respiratory protection mask which is transparent, adjustable to the face of its wearer, comfortable, which has good breathability, which allows the wearer to speak while maintaining its fit to the face and its seal, which is reliable and reusable and whose filters can easily be replaced.
- the inventor therefore designed a mask whose lower part does not apply against the chin but against the underside of the chin. This has the effect of allowing the user to speak freely and without endangering the seal of the mask.
- Such a result is obtained by providing that the seal is ensured by a membrane projecting, at the level of the lower part of the periphery of the mask body, from the periphery of the mask body to which it is fixed, in an upwardly inclined manner. and its free end curves downward.
- the positioning and flexibility of the membrane hardly hinders the downward movements of the lower jaw, absorbs these movements which are of little importance because the membrane is closer to the jaw joint, and all this without inconveniencing the user thanks to the curved end of the membrane, which also allows sliding and adaptation below the chin while ensuring that the seal of the mask is maintained.
- the curved shape of the mask body makes it possible to further improve the approximation of the free end of the membrane to the articulation of the lower jaw.
- this goal is achieved using a method of respiratory protection according to the following point 1:
- Method of respiratory protection comprising the steps of
- - a transparent mask body whose perimeter comprises an upper part, a right side part, a left side part and a lower part;
- the upper part of the periphery of the mask body comprising a right curvature and a left curvature which start from its center, curve downwards and rise upwards,
- the membrane protruding from the mask body having one end fixed to the mask body and a free end, and, at the upper part of the periphery of the mask body, the free end of the membrane moving away perpendicular to the mask body,
- Respiratory protection method comprising a preliminary step of selecting a mask for the user.
- Respiratory protection method in which the preliminary step of selecting a mask for the user includes a leak test.
- Respiratory protection method in which the tightness test is carried out using a shutter such as a mask fit test shutter. Indeed, if there is no seal, this means that the mask is poorly adjusted, that is to say poorly positioned on the user's face and/or that its size is unsuitable for this. last.
- the assembly is preferably lateral and it is preferably a filtration assembly.
- two sets are provided, preferably one on each of the sides (right and left) of the mask body.
- the invention also relates to a mask according to the following point 5:
- Respiratory protection mask suitable in particular for the implementation of the method according to one of the preceding points, comprising:
- - a transparent mask body whose perimeter comprises an upper part, a right side part, a left side part and a lower part;
- the upper part of the periphery of the mask body comprising a right curvature and a left curvature which start from its center, curve downwards and rise upwards,
- the right and left holding means being fixed to the angles formed between the upper part and the right and left lateral parts of the periphery of the mask body, respectively, and • the membrane protruding from the mask body having one end fixed to the mask body and a free end, and, at the upper part of the periphery of the mask body, the free end of the membrane moving away perpendicular to the mask body, this mask being distinguished in that, at the lower part of the periphery of the mask body, the membrane projects, from the periphery of the mask body to which it is fixed, in an upwardly inclined manner and its free end curving downwards.
- Mask according to point 5 in which the mask body is curved from the upper part to the lower part. 6bis. Mask according to point 5 or 6, in which the mask body has the shape of a portion of a sphere.
- Mask according to one of points 5 to 7bis in which the set(s), preferably lateral, has (have) an openwork base, a cover having a main side and a side wall on one only part of its periphery, in order to leave one side open, preferably facing the rear of the mask.
- Mask according to point 8 further comprising a filter inserted between the cover and the perforated base. 10. Mask according to point 8, further comprising a shutter inserted between the cover and the perforated base.
- the right holding means forms a loop with the perimeter of the mask body while also being fixed at the junction of the lower part and the right side part of the mask body, and
- the left holding means forms a loop with the perimeter of the mask body while also being fixed at the junction of the lower part and the left side part of the mask body.
- the invention also relates to the use of the mask according to the invention to ensure respiratory protection of a person, in which the mask is placed on the face of the person, by arranging the membrane, at the level of the lower part of the periphery of the mask body, only in contact with the lower face of the jaw of this person.
- this use includes a prior step of selecting a mask for this person (the user).
- This selection step preferably includes a leak test. This is preferably carried out using a shutter such as a mask adjustment test shutter.
- the invention also relates to a method of manufacturing the aforementioned mask, the particularity of which is that it comprises a bi-injection step.
- the invention relates to a method for testing the tightness of a mask with a changeable filter, in which a shutter is used instead of a filter. This method can be used with any mask with a changeable filter and in particular with the mask according to the invention.
- the user of the mask inserts a shutter which has approximately the same dimensions as a filter, such as a shutter for mask fit testing, in the place where the filter is usually located, then inhaling and exhaling , he checks the tightness of the mask.
- a shutter which has approximately the same dimensions as a filter, such as a shutter for mask fit testing, in the place where the filter is usually located, then inhaling and exhaling , he checks the tightness of the mask.
- FIG. 1 the mask according to the invention in front view and placed on a wearer
- FIG. 2 the mask of Figure 1, in side view
- FIG. 3 the mask of Figures 1 and 2, in side and bottom view;
- FIG. 4 the mask of Figure 1, back view, in perspective
- FIG. 5 the mask of Figure 4, in exploded view
- FIG. 6 part of a lateral filtration assembly of a mask according to the invention, before assembly;
- FIG. 7 the part of Figure 6, after assembly
- FIG. 8 a complete lateral filtration assembly of a mask according to the invention
- FIG. 9 a profile view of a user wearing the mask according to the invention
- FIG. 10 a sectional profile view of the frame of a user wearing the mask according to the invention and having their mouth closed;
- FIG. 11 a sectional profile view of the frame of the user of Figure 10, the latter now having his mouth open and, consequently, the lower jaw moved downwards.
- FIG. 1 An exemplary embodiment of the transparent respiratory protection mask according to the invention is shown in Figures 1 to 11.
- the normal mouth opening is three fingers placed vertically one above the other.
- the opening of the mouth is done by a rocking movement of the lower jaw backwards and downwards due to the complex movement of the temporomandibular joint (TMJ). ) whose axis makes a complex movement composed of a simultaneous translation and rotation.
- TMJ temporomandibular joint
- the mask according to the invention therefore integrates a unique design with the end of the membrane forming a bead under the lower jaw which perfectly matches the shape of the wearer's chin and which has the particularity of flattening and coming back to follow the complex movement of the jaw.
- the depression of the bead when opening the jaw will allow the membrane to always remain hermetically in contact with the lower jaw and to absorb the entire movement when opening the mouth.
- This structure is responsible for the stability of the mask on the face when speaking. because the upper part which rests on the nose does not undergo movement.
- the mask is shown correctly placed on a wearer and ready for use.
- This mask firstly comprises a transparent mask body 1, rigid or semi-rigid, the periphery of which comprises an upper part 36, a right side part 2, a left side part 3 and a lower part 4.
- the upper part 36 of the periphery has a right curvature 5 and a left curvature 6 which start from its center 7, curve downwards then rise upwards, so as to head towards the tops of the wearer's ears, while following more or less, from a distance, the contour of his eyes.
- the lower part 4 is horizontal while the side parts 2 and 3 are substantially vertical.
- Such a shape makes it possible to obtain a larger contact surface of the mask body 1 on the wearer's face, which better distributes the contact pressure compared to known masks.
- it leaves free, on the one hand, the nodal points for human communication which are the eyes, nose and mouth and, on the other hand, the areas used by facial recognition algorithms.
- the mask body 1 is provided with a membrane 8 for facial contact running around the perimeter of the mask body 1.
- the membrane 8 has one end fixed to the mask body 1 and it projects relative to the latter. At the level of the upper part 36 of the periphery of the mask body 1, the free end of the membrane 8, as can be seen in particular in Figure 1, moves away perpendicularly to the mask body 1, in order to reduce visual clutter. Thus, the wearer of the mask only sees a narrow band of membrane.
- the free end of the membrane 8 also moves away perpendicular to the body of the mask 1 then curves towards the rear of the mask, so as to increase the contact surface and allow absorption of facial movements.
- the width of the membrane 8 increases from top to bottom, so as to compensate for the natural thinning of the face and to allow the lower part 4 of the periphery of the mask body 1 to remain horizontal.
- the membrane 8 projects, from the periphery of the mask body 1 to which it is fixed, in an upwardly inclined manner and its free end curves downwards. , as seen in particular in Figure 4.
- This curvature has the effect of increasing the contact surface with the lower jaw and provides sealing at this level as well as stability during movements of the lower jaw.
- the membrane 8 can absorb the movements of the lower jaw downwards. , while guaranteeing sealing, and its downward curvature avoids pressing against the jaw which is unpleasant for the user.
- the membrane 8 By keeping the mask body 1 away from the face, the membrane 8 creates a volume in front of the respiratory orifices, which facilitates breathing and air circulation. Thanks to this, the wearer does not need to make a respiratory effort and can breathe normally.
- the mask according to the invention comprises a right holding means 9 and a left holding means 10 on the wearer's face, designed to pass around his ears or his head.
- These right 9 and left 10 holding means on the face are fixed, on the one hand, to the angles 11 and 12 formed between the upper part 36 and the right lateral parts 2 and left 3, respectively, and, on the other hand, at the junctions 13 and 14 of the lower part 4 and the right side parts 2 and left 3, respectively, of the periphery of the transparent mask body 1.
- the dimension of the mask body 1, in particular the length of the lateral parts 2 and 3 of the periphery is provided so that the lower part 4 is located under the user's chin, as is clear from Figures 1 to 3 .
- the mask body 1 is generally curved from the upper part to the lower part. He can therefore have generally substantially the shape of a portion of a sphere, which has the particular advantages of preventing extensive reflection of light and leaving a comfortable space in front of the wearer's nose and mouth.
- the membrane 8 allows, on the one hand, the adaptability of the mask body 1 to different faces and, on the other hand, facial movements (speech, grimaces and other facial expressions), due to the stability of the 'adjustment.
- the greatest support being exerted at the level of the upper part 36, the free end of the membrane is preferably provided with an additional facial contact element 34, visible in particular in Figure 4, which softens and softens the pressure on the face.
- the support of the mask body on the face can also be adjusted with the right 9 and left 10 holding means on the face, the length of which can be varied using their attachments to the mask body 1, as this can be seen in Figure 4, where the lower parts of the holding means 10 and 11 are held, at the junctions 13 and 14, by elements forming a clamp inside which the holding means 9 can slide. and 10 by pulling them in one direction or the other.
- the air filtration assemblies 15 and 16 are visible in detail in Figure 5. They are each composed of a base 17,18 which is fixed on an opening substantially of the same dimension provided laterally in the mask body 1.
- the bases 17 and 18 include openings 19 and 20 for the entry and exit of air, the air filtration assemblies 15 and 16 then being bidirectional.
- Lids are mounted on the bases 17 and 18. They each have a main side 21,22 and, arranged perpendicular to this, a side wall 23,24 on part of their periphery, in order to leave one side open for the introduction of filters 25, 28.
- the air circulates only through this open side which faces towards the rear. This helps prevent sprays or droplets from being projected onto the active faces of the filters.
- the main sides 21 and 22 are provided on their faces facing the bases 17,18 with ribs 26,27 intended to create a volume of air circulation between the main sides 21,22 of the covers and the filters 25,28 and to form a stabilizing support for them.
- Figure 6 represents the introduction of the filter 25 into its cover and Figure 7 the filter 25 in the normal position of use.
- each filter 25.28 preferably includes a tab 29.30.
- the covers can be provided at the ends of their side walls 23,24 opposite the main sides 21,22, with edges 31,32 intended both to come into contact with the bases 17,18 and to create a filter compartment, like this emerges in particular from Figures 6 and 7.
- the covers include rivets 33,34 passing through corresponding holes provided in the bases 17,18 (see Fig. 8) and being fixed in the mask body 1, in order to firmly and tightly hold the covers on the mask body.
- the filters 25,28 are intended to block all the openings 19,20 and that the tabs 19 and 20 preferably remain outside the filtration assemblies to be accessible.
- the filters 25,28 have a rigid, impermeable frame 35,36, inside which there is a porous material.
- the air filtration assemblies 15,16 play the role of a welcoming cassette and the filters 25,28 a role of cartridge.
- Such a design of the air filtration assemblies 15 and 16 has the advantage of allowing easy change of the filters 25,28 which can also be carried out without having to remove the mask, or even to remove one of the parts. constituent, since it suffices to slide each filter 25,28 inside the filter compartment of the respective air filtration assembly 15,16, between two parallel internal faces of the side walls 23,24, until so that it abuts against the face of the side wall 23,24 opposite the inlet of the filter compartment.
- the filtration assemblies 15 and 16 in projection on a plane, have substantially the shape of an isosceles trapezoid whose parallel sides have been curved concentrically, the smaller side of the trapezoid preferably being closest to the center of the virtual circle.
- the filters 25 and 27, if we ignore the tabs 29 and 30, have the same shape. This shape facilitates the introduction of filters 25 and 27 into the filter compartments, thanks to their small curved sides.
- the respiratory protection mask can be manufactured with known materials and for example by bi-injection, overinjection or thermo-molding. Preferably, simultaneous or sequential bi-inection of the membrane 8 and the mask body 1 is used.
- the membrane is preferably made of an elastomer such as a thermoplastic elastomer (TPE) and/or a thermoplastic styrenic elastomer (TPE-S) or possibly silicone.
- TPE thermoplastic elastomer
- TPE-S thermoplastic styrenic elastomer
- the mask body 1 is made of plastic materials or transparent injectable biomaterials.
- the side assemblies 15,16 are at least partially made up of polypropylene (PP) and/or polylactic acid (PLA) and/or polyhydroxyalkanoate (PHA) and/or biopolyester.
- PP polypropylene
- PLA polylactic acid
- PHA polyhydroxyalkanoate
- the filter frames are generally made of injectable elastomeric - thermoplastic materials.
- Porous filter materials vary depending on the type of filtration desired.
- the filter can be made of propylene or equivalent for infectious particle filters.
- the transparent mask according to the invention is preferably available in 3 sizes, so as to suit the majority of human faces and in rarer sizes depending on the morphology of certain faces.
- the entire mask with the obvious exception of the filters, is reusable after disinfection by washing.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2210502 | 2022-10-12 | ||
| PCT/IB2023/060167 WO2024079624A1 (fr) | 2022-10-12 | 2023-10-10 | Méthode de protection respiratoire et masque transparent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4590406A1 true EP4590406A1 (fr) | 2025-07-30 |
| EP4590406B1 EP4590406B1 (fr) | 2026-05-06 |
Family
ID=84362837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23798283.0A Active EP4590406B1 (fr) | 2022-10-12 | 2023-10-10 | Méthode de protection respiratoire et masque transparent |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP4590406B1 (fr) |
| JP (1) | JP2025533181A (fr) |
| KR (1) | KR20250057819A (fr) |
| CN (1) | CN119947794B (fr) |
| AU (1) | AU2023361890A1 (fr) |
| WO (1) | WO2024079624A1 (fr) |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR773129A (fr) * | 1934-05-09 | 1934-11-12 | Kremlin Atel Du | Perfectionnements apportés aux masques respiratoires |
| JPS59164645U (ja) * | 1983-04-18 | 1984-11-05 | ミドリ安全株式会社 | 防塵マスク等の接顔面体 |
| GB2354450B (en) * | 1999-09-22 | 2003-08-06 | Joseph Anthony Griffiths | Facemask with adjustable visor |
| JP2005013492A (ja) * | 2003-06-26 | 2005-01-20 | Nippon Medical Products Co Ltd | マスク |
| KR20050042986A (ko) | 2003-11-04 | 2005-05-11 | 이시원 | 투명 마스크 |
| JP4648441B2 (ja) * | 2008-09-11 | 2011-03-09 | サンエムパッケージ 株式会社 | マスク |
| US20120125341A1 (en) * | 2010-11-19 | 2012-05-24 | 3M Innovative Properties Company | Filtering face-piece respirator having an overmolded face seal |
| DE102011084285A1 (de) * | 2011-10-11 | 2013-04-11 | Uvex Arbeitsschutz Gmbh | Atemschutzmaske |
| US10537755B2 (en) | 2013-03-14 | 2020-01-21 | Scott Technologies, Inc. | Heat deformable material for face seal |
| CN105413035A (zh) * | 2015-12-24 | 2016-03-23 | 北京怡和嘉业医疗科技有限公司 | 用于呼吸面罩的衬垫和呼吸面罩 |
| CN107929967A (zh) * | 2017-12-22 | 2018-04-20 | 深呼吸创造智能科技(天津)有限公司 | 一种透明呼吸面罩 |
| CN208097144U (zh) | 2017-12-22 | 2018-11-16 | 深呼吸创造智能科技(天津)有限公司 | 一种透明呼吸面罩 |
| KR102725263B1 (ko) * | 2018-04-09 | 2024-10-31 | 알지 인더스트리즈 엘엘씨 | 마스크 장치들 및 접근법 |
| ES2778000B2 (es) | 2020-05-31 | 2021-03-11 | Villanueva Margarita Gutierrez | Mascarilla generadora de aire que aleja los virus y que integra desinfeccion portatil de luz ultravioleta uvc. |
| US20210368877A1 (en) * | 2020-06-02 | 2021-12-02 | Virender K. Sharma | Personal Air Management Methods and Systems for Reducing or Blocking Exposure to Airborne Pathogens |
| AU2020102286A4 (en) | 2020-09-16 | 2020-10-29 | Active Mask Pty Ltd | Respiratory mask assembly |
| GB2599415A (en) * | 2020-09-30 | 2022-04-06 | Respiratory Tech Limited | Improvements to filter cartridges |
| AU2021393989A1 (en) * | 2020-12-09 | 2023-06-29 | Intersurgical Ag | Improvements relating to face masks |
| WO2022214919A1 (fr) * | 2021-04-10 | 2022-10-13 | Senouci Samir Maamar | Masque de protection respiratoire transparent |
| JP7651169B2 (ja) * | 2021-07-29 | 2025-03-26 | 山本光学株式会社 | 使い捨てマスク |
-
2023
- 2023-10-10 CN CN202380067170.9A patent/CN119947794B/zh active Active
- 2023-10-10 EP EP23798283.0A patent/EP4590406B1/fr active Active
- 2023-10-10 KR KR1020257008959A patent/KR20250057819A/ko active Pending
- 2023-10-10 AU AU2023361890A patent/AU2023361890A1/en active Pending
- 2023-10-10 WO PCT/IB2023/060167 patent/WO2024079624A1/fr not_active Ceased
- 2023-10-10 JP JP2025520189A patent/JP2025533181A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN119947794A (zh) | 2025-05-06 |
| CN119947794B (zh) | 2025-11-28 |
| JP2025533181A (ja) | 2025-10-03 |
| WO2024079624A1 (fr) | 2024-04-18 |
| KR20250057819A (ko) | 2025-04-29 |
| EP4590406B1 (fr) | 2026-05-06 |
| AU2023361890A1 (en) | 2025-04-24 |
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