EP4247203B1 - Dispositif de protection individuelle de type amélioré - Google Patents

Dispositif de protection individuelle de type amélioré Download PDF

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Publication number
EP4247203B1
EP4247203B1 EP21848252.9A EP21848252A EP4247203B1 EP 4247203 B1 EP4247203 B1 EP 4247203B1 EP 21848252 A EP21848252 A EP 21848252A EP 4247203 B1 EP4247203 B1 EP 4247203B1
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EP
European Patent Office
Prior art keywords
procedure
facial body
face mask
protective face
facial
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.)
Active
Application number
EP21848252.9A
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German (de)
English (en)
Other versions
EP4247203C0 (fr
EP4247203A1 (fr
Inventor
Doriana MARINI
Andrea SCALTRITTI
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Dienpi Srl
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Dienpi Srl
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Publication of EP4247203A1 publication Critical patent/EP4247203A1/fr
Application granted granted Critical
Publication of EP4247203C0 publication Critical patent/EP4247203C0/fr
Publication of EP4247203B1 publication Critical patent/EP4247203B1/fr
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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
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • 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
    • A41D13/1161—Means for fastening to the user's head

Definitions

  • This event was made possible by a mix of factors among which stand out the characteristics of diffusion and behavior of virus SARS_ Cov19: the first one is the high contagiousness even in those apparently asymptomatic individuals. The second one is a long incubation period, which allows the infected individual to lead a normal life and to serve as a carrier in the geographical areas of the entire world. The third one is a low level of morbidity, in which the percentages of hospitalized and mortality turn out to be medium to low.
  • the first element of defense against respiratory viruses such as SARS_Cov19 consists of those barriers that allow to trap the droplets of the aerosol during breathing (nose - mouth) and do not allow them to be carried through the air; they are special masks in synthetic and natural fabrics placed on the face. There are many types of masks on the market, whose performances and fields of use are well differentiated.
  • PPE Personal Protective Equipment
  • the masks defined "of community” are instead that type of protection of common use, therefore more easily usable from the population. However, they can contribute to an effective blocking of the rapid spread of viruses, and, therefore, also SARS_Cov19, only in conjunction with the above-mentioned safeguard rules (in addiction to further prudential behaviors, such as a repeated hands hygiene).
  • Application US4323063A reveals a face-mask made of filtering materials equipped with a transparent element for lip reading; even Application WO2006034227A2 reveals a similar device; both of them, however, are not suitable to remedy some peculiarities of construction required by such protection devices, in order to provide excellent performances. Further refinements are then unveiled in Application WO2017180620A1 , in which inside the individual protection device some elements are inserted that react to the increase in body temperature.
  • the present invention therefore aims to introduce a new type of lay-out for the production of a facial mask of community; this lay-out will have the task of overcoming the problems of the known technique already exposed therein.
  • the device resulting from the idea of the invention reveals the use of peculiar materials and an assembling technique that allows the realization of protection masks with a washable transparent insert [ Fig.1 ], homologable according to the directive in the article 16, clause 2, D.L. 17 March 2020 Nr.18 and in accordance with the indications of the Ministry of Health 0003572-P-18/03/2020.
  • the device realised according to the innovative procedure, also allows some further technical details linked to the affordability of the production cycle, the disposal of the device and the unambiguous identification of the user of the facial mask.
  • the application allows to realise community masks and/or even surgical masks equipped with an additional element for lip reading and for the sight of the face expression while maintaining appropriate and certified protection characteristics.
  • the transparent insert can be chosen beyond the categories of PU and PVC materials, in order to reach a better compatibility during the waste sorting.
  • the face attachment system is configurable with the rubber bands at the ears or with the rubber bands on the nape.
  • the facial mask is identifiable through the application of a peculiar and removable graphic element on the facial body.
  • the mask is made up of a main facial body made from a triple TNT layer, in which at least one is made of polypropylene, spun-bonded type, that is directly obtained from polymers and not from raw material or prior strands.
  • the choice of the number of layers and their grammage was balanced in order to achieve both an immediate production process, easy and at low cost and to maintain the technical performances to ensure the correct absorption of droplets. It is possible, however, to change this balancing of the quantities and properties of the facial body's components provided that the above minimum condition is met.
  • the configuration of this material is also defined in relation to the presence of the transparent insert, because this element cannot guarantee an excellent breathability.
  • the use of the triple TNT layer allows to avoid further finishing operations, such as edging.
  • the material allows to be processed with appropriate germicidal treatments, even of a semipermanent type, to improve the protection characteristics.
  • the chosen shape provides an oval type opening in the area of the mouth (20), while the outer perimeter of the whole facial body is comparable to the geometric shape of a rhombus with truncated vertices (21).
  • the practicable length intervals of the major radius and the minor one to obtain the facial mask resulting from the idea of the invention are the following.
  • Major radius interval from 3.75 cm to 4.75 cm, so 4.25 cm +/- 0.5 cm
  • Minor radius interval from 2.6cm to 3.6cm, so 3.1cm +/- 0.5cm.
  • the maximum dimensions of the mask's facial body in the two directions orthogonal to each other (height and length) are Height (26). 15.3 cm +/- 1 cm; Length (27): 20 cm +/- 1 cm.
  • the central opening is suitable to hold a transparent insert that allows the sight of the lip movement and, generally, the movements of the central part of the face even in the external perimeter of the mouth.
  • the first one is a PVC material (polyvinyl chloride). This substance has a high level of transparency but it has two perfectible features: the first one is a certain rigidity. The second one is its inability to be joined to TNT with different techniques from seaming.
  • the second material of choice is PU (polyurethane).
  • PU polyurethane
  • This material is obtainable on the market in its heat-sealing form, so it is possible to join it efficaciously by heat, without seams.
  • the PU is poorly transparent compared to PVC, therefore it is deficient exactly in the essential component to the visual function.
  • the transparent insert is cut from a 0.20 grams sheet in a shape that is equal to the one present in the TNT facial body, so oval.
  • the proportions of this transparent insert are however bigger than the opening on the TNT, for the purpose of coming in touch on the edges when it is joined to it; for example, a size bigger of about 4-10mm.
  • a thermal glue is applied by a screen-printing technique, that is to say a glue capable of activating when subjected to high temperature.
  • the transparent insert (51) is stuck to the opening on the facial body of the mask (50) and subjected to a simultaneous thermal and compression process such as to reactivate the glue that, penetrating into the TNT, perfectly joins it to the transparent insert.
  • a simultaneous thermal and compression process such as to reactivate the glue that, penetrating into the TNT, perfectly joins it to the transparent insert.
  • this element allows the facial mask to adhere more efficiently to the profile in the nose area.
  • This element has been profitably replaced with a seam (60) that allows a sort or pre-forming along the surface of the TNT, precisely on the two "V"-shaped openings on the facial body of the facial mask: this solution allows the facial body of the mask to match the nasal profile properly.
  • this seam suitable for the pre-forming of the facial body of the mask, is prepared also at the bottom of the same mask, that is, in the chin area, in order to make it adhere better to the face and give the finished product a concave shape consistent with a nose-mouth-chin profile.
  • Such a processing does not exclude the possibility to apply a lug on the mask, even metallic, in order to assure an additional cohesion element with the user's face.
  • the last stage of manufacturing according to the idea of the invention involves the seaming of the rubber bands to the edges of the facial mask, rubber bands that allow to fasten it to the face.
  • a number of improvements of this technique are introduced here in order to better its advantages.
  • the rubber bands have a predisposition for assembly on the facial body (70)(80) but they are not provided already connected to it.
  • the rubber bands applied to the nape are characterized by a superior length as compared to those applied to the ears and the two extremities of a single rubber band are connected to the opposite vertices of the facial mask along the horizontal axis.
  • the rubber bands when the rubber bands are applied to the ears, it is possible to prepare an improvement of the stability of the facial mask on the face by the use of a rear tensor placed on the nape.
  • the tensor is made up of a combshaped support, flexible, placed on the nape, equipped with specific grooves at the respective two ends (90)(91) on which the rubber bands can be hooked (100), so increasing their tension and the mutual traction that stabilizes the facial mask on the face.
  • This solution proves to be of choice for those with physical or mental disabilities, or temporarily unable to use the upper limbs, whose could not efficaciously reset the facial mask on the face in case of misalignment.
  • a sphere-shaped element or of other geometric form as rectangular or polyhedric, to block the rubber bands, that allows to decrease their length and so increase the strength that stabilises the facial mask on the face.
  • the facial mask resulting of the idea of the invention can be moreover distinguished with an unique and peculiar graphic element, chosen by the customers, applied on the facial body by an adhesive element and/or by a mechanical coupling one, easily removable.
  • This characteristic allows identifying individually persons or groups in communities or during events, for the purpose of simplify interpersonal communication.
  • the facial mask resulting of the idea of the invention is equipped with a hook (130) where a little holding lace can be applied.
  • This lace can be used to hold the facial mask around the neck, similar to eyeglasses laces, when it is not worn.
  • the field of application of the device resulting of the idea of the invention, is that in which lip reading and reading the facial expressions cannot be excluded from the start in the interpersonal relationships, but there is an obligation of protection against airborne pathogens.
  • Examples of applications are schools, support activities for individuals with physical/cognitive disabilities and hearing impaired individuals.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (10)

  1. Procédure de réalisation d'un masque de protection contre les agents bactériens aériens, les agents viraux et la pollution atmosphérique, également destiné à des applications communautaires, équipé d'un insert transparent, dans laquelle :
    a. le corps du masque se compose de trois couches de TNT minimum, dont au moins une couche de polypropylène de type spunbonded ;
    b. le corps du masque est modélisé dans une forme rhomboïde (Fig. 2) dans laquelle tous les sommets sont découpés ;
    c. le sommet supérieur dans l'axe vertical est en forme de V (22) ;
    d. Le sommet inférieur dans l'axe vertical est en forme de V inversé (23) ;
    e. sur le corps du masque, dans la zone centrale et au niveau de la bouche, une ouverture de forme ovale, dans laquelle le ratio entre le rayon majeur (24) et le rayon mineur (25) est compris entre 1,25 et 1,55 est exécutée ;
    f. Les longueurs de rayons majeur et mineur de l'ouverture de forme ovale mesurent respectivement 4,25 cm +/- 0,5 cm et 3,1 cm +/- 0,5 cm ;
    g. un insert transparent de la même forme que l'ouverture figurant sur le corps du masque, également de forme ovale, présentant de plus grandes dimensions de 4 à 10 mm, est obtenu à partir d'une feuille transparente de PU ou de matériau PVC de type 0,20 g (30) ;
    h. une couche de colle thermique, d'une épaisseur moyenne comprise entre 2 et 8 mm, est appliquée sur le bord de l'insert transparent en utilisant une technique par sérigraphie (40) ;
    i. l'insert transparent est créé en joignant à haute pression et haute température l'ensemble des bords de l'ouverture ovale du corps du masque en TNT, pour lui permettre de refroidir (Fig. 5) ;
    j. les deux rabats de la forme de V au niveau du sommet supérieur du corps du masque sont cousus ensemble (60) ;
    k. les deux rabats de la forme de V inversé au niveau du sommet inférieur du corps du masque sont cousus ensemble (61) ;
    l. deux élastiques sont reliés sur les côtés du corps du masque, à proximité des sommets découpés de l'axe horizontal du corps du masque.
  2. Masque de protection fabriqué conformément à la Revendication 1 dans laquelle la taille maximale du corps du masque dans les deux directions perpendiculaires l'une à l'autre (hauteur et longueur) mesure respectivement 15,3 cm +/- 1 cm et 20 cm +/- 1 cm.
  3. Une procédure visée dans la Revendication 1 consistant en une technique d'application de colle thermique sur le bord de l'insert transparent appelée tampographie.
  4. Une procédure visée dans la Revendication 1 consistant en une application de colle thermique sur le bord de l'insert transparent et ayant, sur une longueur comprise entre 1 et 3 mm, une réduction de la largeur jusqu'à un 1 mm.
  5. Masque de protection obtenu en suivant la procédure visée à la Revendication 1 dans laquelle l'insert transparent est composé de matériel synthétique ou naturel rigide, semi-rigide ou transparent.
  6. Masque de protection obtenu en suivant la procédure visée à la Revendication 1, équipé d'un élément tenseur pour les élastiques composés d'un segment de matériau flexible naturel ou synthétique aux extrémités dont deux rainures verticales et/ou obliques verticales minimum sont réalisées avec une longueur maximale correspondant à la moitié de la largeur du tendeur.
  7. Masque de protection obtenu en suivant la procédure visée à la Revendication 1, équipé de deux attaches minimum pour accueillir deux élastiques minimum pour la nuque et/ou deux élastiques minimum pour les oreilles.
  8. Masque de protection obtenu en suivant la procédure visée à la Revendication 1, équipé d'un dispositif de réglage d'élastique fabriqué en matériau naturel ou synthétique avec forme sphérique, rectangulaire ou polyédrique et une perforation centrale.
  9. Masque de protection obtenu en suivant la procédure visée à la Revendication 1 avec prédisposition mécanique et/ou adhésive sur le corps du masque, conçue pour contenir un ou plusieurs éléments graphiques spécifiques (120).
  10. Masque de protection obtenu en suivant la procédure visée à la Revendication 1, configuré de manière à pouvoir être attaché à une ou plusieurs languettes de retenue (130).
EP21848252.9A 2020-11-23 2021-11-09 Dispositif de protection individuelle de type amélioré Active EP4247203B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202000028025 2020-11-23
PCT/EP2021/081063 WO2022106256A1 (fr) 2020-11-23 2021-11-09 Dispositif de protection individuelle de type amélioré

Publications (3)

Publication Number Publication Date
EP4247203A1 EP4247203A1 (fr) 2023-09-27
EP4247203C0 EP4247203C0 (fr) 2025-01-22
EP4247203B1 true EP4247203B1 (fr) 2025-01-22

Family

ID=74592446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21848252.9A Active EP4247203B1 (fr) 2020-11-23 2021-11-09 Dispositif de protection individuelle de type amélioré

Country Status (2)

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EP (1) EP4247203B1 (fr)
WO (1) WO2022106256A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4323063A (en) 1980-04-21 1982-04-06 Fisichella Jeanne M Medical face mask
WO2006034227A2 (fr) 2004-09-20 2006-03-30 California Pacific Medical Center Masque facial
WO2017180620A1 (fr) 2016-04-12 2017-10-19 Thomas Jefferson University Masque facial chirurgical sensible à la température pour identifier des patients à risque et réduire une infection virale

Also Published As

Publication number Publication date
EP4247203C0 (fr) 2025-01-22
WO2022106256A4 (fr) 2022-08-18
WO2022106256A1 (fr) 2022-05-27
EP4247203A1 (fr) 2023-09-27

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