ES2882356A1 - Adhesive mask with filter (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Adhesive mask with filter, comprising a first protective layer (1), which has a first adherent surface (1.1), for its fixation by adherence to the user's face, a second opposite surface (1.2) and an opening (5) in a central area; a filter (4) with transverse pleats (6) fixed to the perimeter of said opening (5) by means of fixing; a second layer (2) supporting the first layer (1) removably attached to the second surface (1.2) thereof, and a third non-stick layer (3) on the first surface (1.1) of the first layer (1), removable, and formed by at least two independent portions; where the first protection layer (1) has some extreme adjustment fins (7), to adapt to different facial features of the users. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Adhesive mask with filter

Technical field of the invention

The present invention corresponds to the technical field of protective masks against infectious agents, capable of covering the user's nose and mouth area.

Background of the Invention

Currently there is an increasingly widespread need for the use of personal protection elements against infectious agents, with protective masks being one of the most used.

There is a type of mask that allows an uncontrollable leak of air to the outside, that is, part of the inhaled and exhaled air does not circulate through the filter but through leaks and folds. These masks, when they also comply with a purification in the air that they filter of a percentage of less than 95%, are considered grade I, while if the purification percentage is higher they are considered grade II.

On the other hand, those of class IIR present an added treatment, an external waterproofing, which makes them resistant to splashes. However, they present the same problem as the previous ones, since part of the air comes from the environment without filtering, so their protection is limited.

Regarding the masks classified as personal protection equipment, PPE, these are also classified according to the degree of leakage to the outside in FFP1 (degree of leakage of 22% and filtration of 78%), FFP2 (degree of leakage of 8% and 92% filtration efficiency) and FFP3 (2% leakage rate and 98% filtration efficiency).

The filtering capacity is also defining in this type of mask, so that in those of grade FFP1, the percentage of penetration of paraffin and Physiological Serum (SF) is less than 20%, in those of grade FFP2 it is less than 6% and , in those of grade FFP3, is less than 1%.

These PPEs are essential protective equipment for the daily work of health personnel, to prevent both the people they treat and themselves from becoming infected.

One way to reduce the leakage of air to the outside in the masks is that the edges of the masks are adhered to the user's face. As an example of the state of the art, reference documents US7152601, WO2016025266, CN105520235, WO2011031276, US20110146688 and US20090277451 can be mentioned.

Reference documents US7152601 and WO2016025266 propose masks with their contour adhered to the user's face, but none of them contemplates an adaptability to the possible shapes of the face, which varies from one user to another. In addition, as they are attached to the face, they pose a new problem, as they are impractical since, when faced with the need to uncover the mouth to drink or eat, it is necessary to detach the entire body from the mask, which is uncomfortable and can cause poor adhesion. later and that you have to change the mask with the cost that this entails.

For its part, reference document CN105520235 proposes a surface of poor adhesion and relative adhesion as it is not easily adaptable to the face.

Reference documents WO2011031276 and US20110146688 present an area of adherence to the user's face, but at the same time they require fixing bands or flanges, which is why they are uncomfortable and impractical.

Finally, reference document US20090277451 proposes a mask that adheres to the edge of the user's face, but does not present any type of fold or pleat, so its appearance is somewhat unsightly and, above all, it generates little slack and little possibility of movement. in the area of the nose and mouth of the user, with which, detachments can be generated by the movements of this area.

No mask has been found in the state of the art that allows secure adhesion to the user's face, to eliminate unfiltered air leaks and at the same time allows this placement to be adequate for the user to comfortably carry out movements of this area and that is practical to be able to use it taking into account the need to remove it at certain times, for example, to allow the ingestion of food or drinks.

Description of the invention

The adhesive filter mask, capable of covering the user's nose and mouth area, presented here, comprises a first protection layer that has a first adherent surface, suitable for fixing by adherence on the user's face, a second opposite surface and, an opening in a central area.

It also comprises a filter with transverse folds, fixed to the perimeter of the opening of the first layer, by means of fixing means, such that it is arranged over the entirety of said opening.

Likewise, it has a second support layer of the first layer removably attached to the second surface of the same, and a third non-stick layer arranged on the first surface of the first layer, in a removable way, and formed by at least two independent portions.

In addition, the first layer of protection has extreme adjustment fins, to adapt to different face features of users.

With the adhesive mask with filter that is proposed here, a significant improvement of the state of the art is obtained.

This is so because a mask is achieved that is fixed to the user's face completely by adhesion, allowing it not to be necessary to use cords, rubber bands, or any other element for its fastening, since the adhesive of the first layer is enough for it to remain perfectly fixed without the possibility of falling.

This mask allows free mobility of the user without having to be aware of the correct position of the mask, since it does not move from the fixed position. In addition, as it is free of rubber bands and is adhered to the first layer, it does not move upwards, nor does it cause discomfort in the area of the ears or the back of the ears, which is where traditional means of fastening are usually attached.

On the other hand, thanks to the fact that the entire mask, except for the central area, in correspondence with the user's nose and mouth, is adhered to the face, it presents minimal air leaks to the outside and all the air that enters is filtered by the filter. of the mask, which, when present some folds or pleated configuration, they increase the filtration surface and allow a greater filtration and less resistance to be carried out in a smaller area. In addition, this pleating provides the user with greater mobility in this area, to be able to speak and express themselves without problems of stretching of the mask or unwanted movements of it.

Since the mask ensures maximum sealing, high filter efficiency and low cost, its use may be appropriate for places where proximity is required, but in relatively short periods of time, for example, in plays, events sports, and other places of leisure both indoors and outdoors. They can also be very suitable for use in closed public transport, such as buses, trains and planes.

In addition, a great advantage of this mask is that it has the option of having the filter fixed or removable. In the case of the removable filter, it is allowed that the filter can be separated from the mask at least in part of its contour and re-attached later. This is very practical for sports activities, as it allows the athlete to drink by removing the filter and replacing it. This type of mask, being lighter, does not move from its position with movements and is resistant to humidity and therefore to sweat.

In addition, this mask is very useful and effective for healthcare environments because its adherence, its low external leakage and the large capacity of the filter make it very safe for healthcare personnel, with its filtering efficiency being between 95 and 98%. , comparable to an FFP3 grade mask.

In addition, they have the option of being reusable and washable, so that they can be disinfected and used again.

The shape of this mask is another innovative and very practical part, as it has extreme adjustment flaps, to adapt to different facial features of the users. Thus, it adheres to the area of the nose and cheeks, while at the bottom it has extreme flaps on both sides that fold towards the upper region, forming a fold on each side, which allows the mask to adapt to the different factions of users.

It is therefore a very practical and effective mask, which is very comfortable to use and with the added advantage of having a very low cost.

Brief description of the drawings

In order to help a better understanding of the characteristics of the invention, according to a preferred example of its practical embodiment, a series of drawings is provided as an integral part of said description, where, by way of illustration and not limitation, represented the following:

Figure 1.- Shows an exploded view of the parts of the adhesive mask with filter, for a first preferred embodiment.

Figures 2.1 and 2.2.- Show front and back plan views of the first layer and the filter of the adhesive mask, for a first preferred embodiment.

Figure 3.- Shows a plan view of the adhesive mask with the filter open, for a first preferred embodiment.

Figures 4.1 and 4.2.- Show a profile view of a user in two phases of donning the adhesive filter mask, for a first preferred embodiment.

Figure 5.- Shows an exploded view of the part of the adhesive mask with filter, for a second preferred embodiment.

Detailed description of a preferred embodiment of the invention

In view of the figures provided, it can be seen how in a first preferred embodiment of the invention, the adhesive mask with filter, capable of covering the area of the nose and mouth of the user proposed here, comprises a first layer ( 1) of protection, which has a first adherent surface (1.1), suitable for fixing by adherence on the user's face, a second opposite surface (1.2) and, an opening (5) in a central area, a filter (4 ), a second support layer (2) for the first layer (1) and a third non-stick layer (3) arranged on the first surface (1.1) of the first layer (1), in a removable way, and formed by at least two separate portions.

In this first preferred embodiment of the invention, the first layer has a symmetrical shape with respect to a central axis arranged between two opposite sides (1.3) of the same, and the third non-stick layer (3) is formed by five independent portions, one first portion (3.1) for the area of the nose, two second portions (3.2) equal to the malleolar area on each side of the face, reaching the mandibular region, and two third portions (3.3), also equal to each other, corresponding to the chin and submandibular area.

As shown in Figures 1, 2.1 and 2.2, the filter (4) which has transverse folds (6) and is fixed to the perimeter of the opening (5) of the first layer (1), by means of fixing means, such that it is disposed over the entirety of said opening (5).

For its part, the second support layer (2) of the first layer (1) is removably fastened to the second surface (1.2) thereof.

The first layer of protection (1) has some extreme adjustment flaps (7) to adapt to different face features of the users. In this way, when the user wants to put on the mask, he removes the first portion (3.1) to adhere it to the nose area and subsequently removes the two second portions (3.2), thus placing the mask in both malleolar areas, at both sides of the face, as can be seen in Figure 4.1.

Finally, the user removes the two third portions (3.3), corresponding to the chin area, and adheres them from both sides, partially overlapping with the part of the mask corresponding to the malleolar area, as shown in Figure 4.2, adapting in this way to the different face shapes that users can have. In Figures 4.1 and 4.2 the second support layer (2) has not been shown, for a better understanding of the invention.

In this first preferred embodiment of the invention, the filter fixing means (4) are removable at least in part of the perimeter of the opening (5), as can be seen in Figure 3 and are arranged in the second surface (1.2) of the first layer (1), as shown in Figures 2.1 and 2.2.

In this case, moreover, the filter fixing means (4) are formed by a double-sided tape (8).

In other embodiments, these means for fixing the filter (4) can be fixed, as is the case in a second mode shown in Figure 5. In this case, the filter (4) is integrated into the first surface (1.1). ) of the first layer (1) and the fixing means thereof are formed by said first adherent surface (1.1).

In other embodiments, the filter (4) is fixed to the second surface (1.2) of the first layer (1) and its fixing means are formed by an adhesive product.

In the first preferred embodiment, the first layer (1) is made of polyurethane with a hypoallergenic acrylic biological adhesive on its first surface, and the filter (4) is made of two superimposed 70-g layers of polypropylene with the Heat-sealed edges between both layers. With these characteristics of the filter (4), it has a filtration capacity greater than 98%.

In other preferred embodiments of the invention, it may be of interest for the mask to be reusable and washable. In this case, the first layer (1) can be formed by adherent silicone while the filter (4) is formed by an electrospun polymer membrane placed between two layers of polypropylene, 40 gr. Under these conditions, the filter (4) has a filtration capacity greater than 95%.

In the first preferred embodiment of the invention, the filter (4) has a hexagon shape.

For its part, as can be seen in Figure 1, the second support layer (2) of the first layer (1) has a shape similar to that of said first layer (1), with dimensions of its outer perimeter equal to those of the outer perimeter of the first layer (1) and dimensions of the central opening (5.1) smaller than those of the opening (5) of the first layer (1), such that the second support layer (2) is located on the joint perimeter of the filter (4) with the first layer (1), thus said joint being more protected. This second layer (2) is removed once the mask is adhered to the skin of the user's face.

In this embodiment, the first layer (1) is transparent, but in other embodiments it can be flesh-colored, white, or whichever is more suitable.

The described embodiments constitute only examples of the present invention, therefore, the specific details, terms and phrases used herein are not to be considered as limiting, but are only to be understood as a basis for the claims and as a representative base that provides an understandable description, as well as sufficient information to the person skilled in the art to apply the present invention.

Claims (1)

1- Adhesive mask with filter, capable of covering the user's nose and mouth area, characterized in that it comprises - a first protection layer (1), which has a first adherent surface (1.1), suitable for fixing by adherence on the user's face, a second opposite surface (1.2) and an opening (5) in a central area ; - a filter (4) that has transverse folds (6) and is fixed to the perimeter of the opening (5) of the first layer (1), by means of fixing means, such that it is arranged over the entirety of said opening ( 5); - a second layer (2) supporting the first layer (1) removably fastened to the second surface (1.2) thereof, and - a third non-stick layer (3) disposed on the first surface (1.1) of the first layer (1), in a removable manner, and formed by at least two independent portions; where the first protection layer (1) has extreme adjustment flaps (7), to adapt to different face features of the users. 2- Adhesive filter mask, according to claim 1, characterized in that the filter fixing means (4) are removable at least in part of the perimeter of the opening (5) and are arranged on the second surface (1.2) of the first layer (1). 3- Adhesive mask with filter, according to claim 2, characterized in that the means for fixing the filter (4) are formed by a double-sided tape (8). 4- Adhesive mask with filter, according to claim 1, characterized in that the means for fixing the filter (4) are fixed. 5- Adhesive mask with filter, according to claim 3, characterized in that the filter (4) is integrated into the first surface (1.1) of the first layer (1) and the fixing means thereof are formed by said first surface ( 1.1) adherent. 6- Adhesive mask with filter, according to claim 3, characterized in that the filter (4) is fixed on the second surface (1.2) of the first layer (1) and its fixing means are formed by an adhesive product. 7- Adhesive mask with filter, according to any of the preceding claims, characterized in that the first layer (1) has a symmetrical shape with respect to a central axis arranged between two opposite sides (1.3) thereof. 8- Adhesive mask with filter, according to any of the preceding claims, characterized in that the first layer (1) is formed by polyurethane with a hypoallergenic acrylic biological adhesive on its first surface (1.1) and the filter (4), is formed by two layers of superimposed polypropylene, 70 gr, with the edges between both layers heat-sealed. 9- Adhesive mask with filter, according to any of claims 1 to 7, characterized in that the mask is reusable and washable, where the first layer (1) is formed by adherent silicone and the filter (4) is formed by a membrane of electrospun polymers arranged between two layers of polypropylene, 40 gr. 10- Adhesive mask with filter, according to any of the preceding claims, characterized in that the filter (4) has a hexagon shape. 11- Adhesive mask with filter, according to any of the preceding claims, characterized in that the second support layer (2) of the first layer (1) has a shape similar to that of said first layer (1), with dimensions of its outer perimeter equal to those of the outer perimeter of the first layer (1) and dimensions of the central opening (5.1) smaller than those of the opening (5) of the first layer (1), such that the second layer (2 ) support is located on the joint perimeter of the filter (4) with the first layer (1). 12- Adhesive mask with filter, according to any of the preceding claims, characterized in that the third non-stick layer (3) is formed by five independent portions.