WO2021239189A1 - Masque de protection respiratoire doté d'éléments filtrants remplaçables - Google Patents

Masque de protection respiratoire doté d'éléments filtrants remplaçables Download PDF

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Publication number
WO2021239189A1
WO2021239189A1 PCT/DE2021/100460 DE2021100460W WO2021239189A1 WO 2021239189 A1 WO2021239189 A1 WO 2021239189A1 DE 2021100460 W DE2021100460 W DE 2021100460W WO 2021239189 A1 WO2021239189 A1 WO 2021239189A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
inserts
respirator
mask
cheek
Prior art date
Application number
PCT/DE2021/100460
Other languages
German (de)
English (en)
Inventor
Frank HORNUNG
David Salehi
Original Assignee
Hornung Frank
David Salehi
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 DE102020114514.4A external-priority patent/DE102020114514B4/de
Priority claimed from DE202020103107.4U external-priority patent/DE202020103107U1/de
Application filed by Hornung Frank, David Salehi filed Critical Hornung Frank
Priority to EP21739239.8A priority Critical patent/EP4157467A1/fr
Publication of WO2021239189A1 publication Critical patent/WO2021239189A1/fr

Links

Classifications

    • 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
    • A62B23/02—Filters for breathing-protection purposes for respirators

Definitions

  • the present invention relates generally to respirators and more particularly to a half mask into which interchangeable inserts can be inserted.
  • Breathing protection masks and here in particular half-breathing masks, are characterized in that they cover the mouth and the nose of the person wearing the mask, so that the eyes remain free and, for example, it is also possible to wear glasses.
  • the task of such a half-breathing mask is therefore limited to protecting the respiratory tract of the person wearing the protective mask, be it from contaminants such as fine dust or from pathogens such as viruses that can be transmitted by droplet infection. All of these pollutants that can be absorbed through the air can be absorbed through the respiratory tract, which should be prevented by appropriate filters in the respiratory mask for those wearing the respiratory half mask.
  • the respiratory half masks should fit so well on the head that no entries can be made via, for example, gaps that exist between the respirator and the face of the wearer. Therefore, already during the shaping, care is taken to ensure that the masks are either elastically adaptable to the facial contour of the wearer or are designed to be adapted as a result of the previous shaping.
  • the respirators are usually fastened by elastic Hal teb selected on the head of the person wearing the respirator, whereby the straps can either run over the ears of the wearer or at least enclose the back of the head with a strap. As a rule, a combination of two straps is led along the back of the head or neck of the wearer to prevent the breathing mask from accidentally slipping off the face.
  • Breathing masks of this type which surround the nose and the mouth are already known from the prior art, which, depending on the area of application, can have differently complex structural features.
  • the publication EP 3 533 496 A1 discloses a respiratory protection device which can additionally accommodate filter cartridges.
  • a nozzle element is provided that is fluidly coupled to the filter cartridge receiver, whereby an air flow channel is generated. It is therefore a comparatively complex ge designed protective mask, which forms other construction due to its design, such as bayonet connections, he can put on breathing masks.
  • a respiratory mask is also disclosed, which is primarily via a ne innovative arrangement of retaining straps defined. This is intended to improve the wearing comfort and use of the respirator.
  • the object of the present invention is to create a respiratory protection mask that allows a high level of comfort with an individualizability with regard to the filter elements used on and in the mask.
  • the subclaims have advantageous Ausgestaltun conditions of the respiratory mask to the subject.
  • the respirator has inside receptacles for, for example, filter pads for filter inserts, but also for a filter cover or filter adapter plates or closure plates, which can be inserted into the respirator in such a way that the filter cover or filter adapter plates fit flush with the receiving area the respirator comes.
  • the filter cover or the filter adapter plate has a transition section which, as a continuation, comes to rest on the face of the person wearing the protective mask.
  • the respiratory protection mask has, in an expedient design, two filter wings with two receiving areas on the inside, which extend flat to one another at a defined angle. These flat receiving areas are embedded as depressions on the inside in the plastic structure of the filter wings of the respirator and form flat openings on the outside so that they form a large breathing and filter surface.
  • a filter pad or an adapter plate is now used to the outside, which on the one hand is precisely designed in its contour on the recess in the receiving area within the respirator.
  • Frames or gradations in the recess in the receiving area serve as contact surfaces for the respective use and prevent ver falling out of the opening and a safe hold in the receiving area.
  • the filter pad or adapter plate has an area which is designed in such a way that it runs at the same level as the actual cheek contact surface of the respirator to rest against the cheek of the person wearing the respirator.
  • the respiratory protection mask according to the invention is designed in such a way that it comes to rest comfortably on the face of the person wearing the respiratory protection mask.
  • Both the nasal region and the chin region are adapted to the facial contour of a person and supported on it, as are the roughly vertical cheek regions that serve as contact surfaces for the respiratory mask on the sides between the chin region and the nasal region.
  • the contact surfaces for these cheek areas of the respirator which are designed according to the shape of the face, are designed in such a way that there are no linear or punctiform contact lines or points, but that a curved surface adapted to the contour of the cheek of a person makes it comfortable to wear.
  • This enlargement of the cheek contact surface also follows the curved surface of the cheek contact surface of the filter wing and thus the contour of a person's cheek. This means that the contact surface on the cheek of a person, which is already provided in the breathing mask, is now lengthened and enlarged again by a section of the filter cover or the filter adapter plate, the cheek contact surface being continuously extended here.
  • a filter pad to support a filter insert in the receiving area in the filter wing of the respirator is inserted on the inside and this filter insert is then inserted through the filter cover placed on the filter insert in the receiving area in the respirator is fixed.
  • the filter cover is lamel-shaped so that there is a large area for breath to escape between these lamellae, while the lamellar grille secures the filter insert in a stable manner in the respirator.
  • the filter pad as well as the filter cover can also have a perforated, honeycomb or lattice structure, with a large area for breath exiting in each design.
  • This filter cover surface which is usually made of plastic, rests directly on an inserted filter insert in the respiratory protection mask in a supporting and stabilizing manner and is graded in relation to the plane of the cheek contact surface enlargement.
  • This gradation can arise, for example, in that the surface of the filter cover resting on the filter insert is approximately parallel to the cheek contact surface enlargement in the filter cover and runs approximately in the plane of the outer surface of the respirator, whereas the cheek contact surface enlargement compared to this inwardly offset, runs directly on the face surface.
  • a distant breathing space of the respiratory protection mask remains in front of the respiratory organs of the people, whereby here the step between the to the Filter insert adjacent surface of the filter cover and the cheek contact surface enlargement, for example, also a handle in this intermediate area of the filter cover made light.
  • Both an additive manufacturing process, in which material is built up layer by layer, as well as subtractive manufacturing, in which material is removed in order to manufacture the respiratory mask, can be used for the manufacture of the respiratory protection mask.
  • subtractive and additive manufacturing processes can also be used here.
  • Figure 1 A respiratory protection mask worn on the head of a person in a perspective presen- tation
  • FIG. 2 shows the main body of the respiratory protection mask 1 in a frontal view
  • FIG. 3 shows a side detail view of the interior of a wing of the respiratory protection mask
  • Figure 4 is a full view of the inner surface of the
  • FIG. 5 shows a filter cover 7 in a front view
  • FIG. 6 shows an adapter plate 15 in an interior view
  • FIG. 7 an adapter plate 15 in an external view
  • FIG. 8 shows the respiratory protection mask in a front view with adapter plates 15 inserted on both sides;
  • FIG. 9 shows a side view of a filter wing 19 of the respirator 1 with adapter plate 15 and filter cover 7 in an exploded view as well
  • FIG. 10 shows a perspective interior view of a filter wing 19 of the respiratory protection mask 1 with adapter plate 15 and filter cover 7 in an exploded view.
  • the respiratory protection mask 1 according to the invention is shown in a design that includes respiratory surfaces arranged at right angles to one another with openings 5, into which filter elements or adapter plates 15 can be inserted.
  • the respirator 1 is attached to the face of a person wearing the mask by means of Garbän countries 2 for this purpose.
  • these retaining straps are arranged on lateral mounting brackets 18, with a first retaining strap section 2 'above the ear enclosing the rear head and a second lower retaining strap section 2' 'enclosing the neck area, whereby the respirator 1 is well aligned in front of the nose and mouth it can be attached to the person carrying it.
  • the respiratory protection mask 1 itself has filter pads 3 inserted into the respiratory protection mask 1 in the present design, which have a honeycomb structure 13 in the illustrated design.
  • the respirator 1 with a nose support section 4 is adapted to the face of the person wearing it.
  • thermal deformability should be achieved by choosing a suitable plastic material. for example, by briefly heating the respiratory mask in liquid, so that here the contact contour of the respiratory mask can be individually shaped to the face of the person wearing it.
  • the respiratory mask 1 provides for production from a special PLA (polylactide), the main components of which are corn starch and lactic acid.
  • the mask can also be made of other biocompatible plastics such as PA (polyamide) or PEEK (polyether ether ketone) or PEKK (polyether ketone ketone), provided it is not to be plastically deformed. This is useful, for example, if the mask is manufactured individually for the person wearing it using 3D scanning processes.
  • the housing of the respirator is not tied to a special material.
  • the filter pads 3 are inserted on the inside in the receiving areas 9 of the respiratory protection mask 1 and close to the front opening 5 in the main body of the respiratory protection mask 1.
  • a central area 6 is formed as a web in this design, in which no further filter component or other functional element is inserted.
  • this can also be designed in such a way that, for example, a valve inserted at the front can only be arranged in the central region 6 for the escape of breathable air.
  • the angular alignment of the two filer wings 19 of the respiratory mask 1 accommodating the filter elements can also accommodate other suitable angular shapes to one another in addition to the arrangement in this exemplary design in an approximately right-angle arrangement.
  • a roughly rectangular course is selected to create a space for the person wearing the respiratory protection mask 1 in front of the respiratory tract, which facilitates breathing for the person wearing the respiratory protection mask 1.
  • FIG. 2 the main body of the respiratory protection mask 1 is shown on its own without retaining straps 2. The view is directed frontally on the respiratory protection mask 1 and here on the web in the central area 6 of the respiratory protection mask 1, from which the lateral filter wings 19 run leading to the cheek surfaces 11.
  • the front openings 5 are formed identically on both sides, into which the filter pads 3, filter inserts 8, filter covers 7 and / or adapter plates 15 can be inserted from the inside into corresponding receiving areas 9.
  • combinatorial arrangements of these elements in the receiving areas 9 are provided.
  • the inventive feature of the respiratory mask 1 becomes clear that it can be used in different functional applications.
  • the present solution also enables different inserts to be combined in one breathing mask 1.
  • the background is that, for example in the medical field, it is quite conceivable to only open the respiratory mask 1 on one side for ventilation, so that, for example, medical staff can always approach a patient from a certain side and thus only into the filter wing away from the patient 19 an insert that is open to ventilation is used, for example, with a filter insert 8 or an adapter plate 15 with an attached filter.
  • the second filter wing 19 facing the patient can be completely closed, for example, by an inserted plate. This increases safety in the medical field, but could also be useful in an industrial application in order to effect a certain orientation of the intake of breathable air.
  • FIG. 3 now shows a view of the inside of the respiratory mask 1 and also a section of a filter wing 19 of the respiratory mask 1.
  • a specific application is illustrated here, namely the insert of an already inserted filter pad 3 as the bottom outward-facing insert, on which a filter insert 8 is then used, which in turn is locked and secured by placing a filter cover 7 in the receiving area 9 of the filter wing. All the elements used are here adapted in terms of their shape to the receiving area 9 in the filter wing 19 of the respiratory protection mask 1.
  • the final filter cover 7 is of particular importance here, since it has an innovative design in the area of a peripheral cheek contact surface enlargement 12, which is flush with the actual cheek contact surface 11 integrated in the main body of the respirator 1, which is part of the actual respiratory mask and here of a filter wing. That is, we have a cheek contact surface 11 on the respective filter wing 19, which rests on the cheek of the person wearing it and which is now enlarged by the inserted filter cover 7 and its cheek contact surface enlargement 12. At the same time it is enough that by the application of the face in the filter wing 19 elements, such as filter inserts and pads are pressed by the application of the face of the person wearing them in the receiving area 9 of the filter wing 19 and held here th.
  • a chin support area 14 arranged on the underside, with which the respiratory mask 1 is supported on the chin of the person wearing it via this chin support area 14. That is, a flat chin support area 14 is also ergonomically formed here in order to effect a comfortable but also sealing attachment to the face of the person wearing it. In addition, it is to be safely excluded that the breathing mask 1 can be displaced in the direction of the neck by the retaining straps 2.
  • the transition from the cheek contact surface 11, which is part of each filter bracket 19, to the cheek contact surface enlargement 12 is designed to merge seamlessly into one another. It also becomes clear that there is a height offset between the flat honeycomb structure 13 pressing an insert into the receiving area 9 and the enlargement of the cheek surface 12, since the honeycomb structure 13 is offset approximately towards the outer surface of the respirator 1 and the enlargement of the cheek contact surface 12 is aligned with the inner cheek contact surface 11 on the face.
  • the design of the filter cover 7 is therefore a special inventive element of the respiratory protection mask 1, which in the design shown has two areas running approximately parallel to one another in the form of the honeycomb structure 13 and the cheek contact surface enlargement 12.
  • a filter cover 7 is shown here on its own. It can be seen here that the surface lying directly on a filter system 8, in this case the honeycomb structure 13, also has approximately the size of the front opening 5 as a flat body in order to be able to fit on an inside contact surface 10 (see FIG. 10) the recording area 9 to be able to rest.
  • the cheeks contact surface enlargement 12 is only formed as a marginal transition area to the actual cheek contact surface 11 of the Fil ter pursuel 19 and thus arranged to run only in a partial area at the edges of the filter cover 7. It is also clear from this FIG. 5 that, as mentioned, a different plane is selected for these two components of the honeycomb structure 13 and the cheek contact surface enlargement 12, these planes of the filter cover being spaced apart from one another.
  • FIG. 6 now shows a further alternative to this use, namely an adapter plate 15 with a breathing opening 16.
  • a cheek contact surface enlargement 12 is part of this adapter plate in this design to cause an extension of the cheek contact surface of the filter wing .
  • the adapter plate is designed without enlargement of the cheek contact surface 12 and for this purpose a separate filter cover 7 is finally placed on the adapter plate 15, as shown in FIG.
  • the filter cover 7 fixes the adapter plate 15 in the receiving area 9.
  • this adapter plate 15 of Figure 6 is shown from its outside.
  • this has a bayonet adapter 17 on which a replaceable filter attachment which can be arranged on the outside of the respiratory mask 1 and can be arranged over the bayonet catch, which is not shown here.
  • combinations of such an adapter plate 15 with a normal Filtereinla ge 8 with filter cover 7 in a respiratory mask 1 can be realized in common sam in for example in the different filter blades 19.
  • FIG. 8 again shows a frontal view of a respiratory protection mask 1 into which an adapter plate 15 has been placed on both sides, which has a bayonet adapter 17 approximately in the center.
  • This bayonet adapter 17 is thus inserted approximately centrally into the front opening 5 of the respiratory mask 1 and is used to connect special filters, for example particle filters of special protection classes with a bayonet connection.
  • Figure 9 shows an exploded view in a side view of the respirator 1 with top Nasenab section 4 and a side mounting bracket 18.
  • an adapter plate 15 with a front bayonet adapter 17 is inserted according to this view is designed as a separate body and is held by a Filterab cover 7 in the respirator 1.
  • This form of the exploded view is also shown once again in FIG. 10 in a perspective interior view of a filter wing.
  • the adapter plate 15 with a filter cover 7 is inserted into the receiving area 9.
  • the receiving area 9 has frame-like contact surfaces 10 which serve to support the respective inserts, for example the filter support 3 or also the adapter plate 15.
  • the latching projections attack, for example, defined areas of attack on the lateral edges of the inserts to support the releasable fixation and to prevent the inserts from slipping or falling out unintentionally when the respirator 1 is put on and taken off.

Abstract

L'invention concerne un masque de protection respiratoire dans lequel peuvent être insérés des éléments remplaçables. L'invention a pour objet la réalisation d'un masque de protection respiratoire à placer pour recouvrir la bouche et le nez, dont l'enveloppe comprend des éléments filtrants à insérer et des sangles de maintien remplaçables. À cet effet, l'enveloppe comprend selon l'invention deux volets filtrants qui sont agencés l'un par rapport à l'autre pour former un angle à partir de la zone médiane et présentent des ouvertures planes et des zones de réception ouvertes côté intérieur dans lesquelles sont logés amovibles des éléments filtrants en tant qu'éléments à insérer. Les volets filtrants présentent des surfaces de contact avec la joue qui coopèrent avec des parties d'augmentation de taille de surface de contact avec la joue qui sont agencées sur au moins l'un des éléments à insérer pour augmenter la taille des surfaces de contact avec la joue.
PCT/DE2021/100460 2020-05-29 2021-05-27 Masque de protection respiratoire doté d'éléments filtrants remplaçables WO2021239189A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21739239.8A EP4157467A1 (fr) 2020-05-29 2021-05-27 Masque de protection respiratoire doté d'éléments filtrants remplaçables

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102020114514.4A DE102020114514B4 (de) 2020-05-29 2020-05-29 Atemschutzmaske mit austauschbaren Filterelementen
DE202020103107.4 2020-05-29
DE202020103107.4U DE202020103107U1 (de) 2020-05-29 2020-05-29 Atemschutzmaske mit austauschbaren Filterelementen
DE102020114514.4 2020-05-29

Publications (1)

Publication Number Publication Date
WO2021239189A1 true WO2021239189A1 (fr) 2021-12-02

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ID=76829221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2021/100460 WO2021239189A1 (fr) 2020-05-29 2021-05-27 Masque de protection respiratoire doté d'éléments filtrants remplaçables

Country Status (2)

Country Link
EP (1) EP4157467A1 (fr)
WO (1) WO2021239189A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60014972T2 (de) 2000-03-27 2006-02-16 3M Innovative Properties Co., Saint Paul Atemhalbmaske mit kopfbänderung
US20080223370A1 (en) * 2007-03-13 2008-09-18 Jong-Hwa Kim Dustproof mask
US20140224256A1 (en) * 2013-02-14 2014-08-14 Moldex-Metric, Inc. Filter cartridge, filetering face mask and method for manufacturing
EP3533496A1 (fr) 2013-02-01 2019-09-04 3M Innovative Properties Company Cartouche d'appareil respiratoire à ajustement dans un manchon
US20200054901A1 (en) * 2017-01-07 2020-02-20 Mahesh KUDAV Twist And Click Locking Mechanism Of Replaceable Non Symmetrical Filter And Inner Yoke Fitting Part Of Half Mask Face Piece
DE102018125228A1 (de) * 2018-10-11 2020-04-16 Pr-Technik Gmbh Modulare Atemschutzvorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60014972T2 (de) 2000-03-27 2006-02-16 3M Innovative Properties Co., Saint Paul Atemhalbmaske mit kopfbänderung
US20080223370A1 (en) * 2007-03-13 2008-09-18 Jong-Hwa Kim Dustproof mask
EP3533496A1 (fr) 2013-02-01 2019-09-04 3M Innovative Properties Company Cartouche d'appareil respiratoire à ajustement dans un manchon
US20140224256A1 (en) * 2013-02-14 2014-08-14 Moldex-Metric, Inc. Filter cartridge, filetering face mask and method for manufacturing
US20200054901A1 (en) * 2017-01-07 2020-02-20 Mahesh KUDAV Twist And Click Locking Mechanism Of Replaceable Non Symmetrical Filter And Inner Yoke Fitting Part Of Half Mask Face Piece
DE102018125228A1 (de) * 2018-10-11 2020-04-16 Pr-Technik Gmbh Modulare Atemschutzvorrichtung

Also Published As

Publication number Publication date
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