RU2754935C1 - Protective mask with mouthpiece - Google Patents

Abstract

FIELD: medicine.SUBSTANCE: protective mask with a mouthpiece belongs to the field of medicine, namely to the means of individual protection of the upper respiratory tract, and can be used to protect the population from bacterial and viral infections, harmful components of gas and smoke. The protective mask with a mouthpiece includes a half mask with a mount. In the central part, an inhalation valve is installed on the surface of the half-mask between the user's nose and mouth. In the under-mask space at the level of the user's mouth, the half-mask contains a mouthpiece. The mouthpiece is an elastic dental cap for the upper and lower rows of teeth with a through hole located in the central part between the pads for the upper and lower rows of teeth, which is connected to a channel that follows the shape of the hole, and has a plate curved in a semicircle at the exit hole from the channel. The mouthpiece is paired with a "T-shaped" tube. The outlet openings of the "T-shaped" tube are connected to the exhalation valve. The exhalation valve is located on the surface of the half mask.EFFECT: creation of a protective mask, the design of which eliminates the mixing of exhaled and inhaled air in the undermask space due to the fact that the half mask in the undermask space at the level of the user's mouth has a mouthpiece connected to a "T-shaped" tube at the outlet openings of which an exhalation valve is installed, thereby allowing the exhaled air to be discharged directly into the atmosphere without entering the undermask space.2 cl, 1 dwg

Description

The invention relates to medicine, namely to personal protective equipment for the upper respiratory tract and can be used to protect the population from bacterial and viral infections, harmful components of gas and smoke.

Known solution RU 137861 U1 "Medical mask", IPC A41D 13/11, B82B 1/00 containing a filtering layer of filter material, a gas filtering layer fixed on the filtering layer from its outer side with execution between the filtering and gas filtering layers of small-sized cavities located in them with gas filtering means, an antimicrobial filtering layer fixed on the outside of the gas filtering layer and the surface of which from the side of the gas filtering layer is covered with fine silver particles, as well as a protective transparent faceplate, the lower edge of which is fixed on the upper edge of the filtering layer made of filtering material, while the width the transparent faceplate is made at least not narrower than the filtering layer made of filtering material, the height is based on the condition of placing its upper edge on the user's forehead when using a mask, moreover, on the edges of the protective transparent faceplate, applying n layer of glue, protected from drying out with a protective film.

The disadvantage of this technical solution is that this mask does not have the ability to divert the air exhaled by a person into the atmosphere without mixing with the inhaled air entering the mask. (RU 137861 U1, http://new.fips.ru).

Known solution RU 2651260 C2 "Medical mask frame barrier-withdrawal type with support", IPC A61B 90/40, A41D 13/11, containing a hollow frame that forms an undermask space in the face, made in the form of a channel containing an entrance and an exit for passage air flow, the inner and outer walls of the frame are made of an airtight material, while between the surface of the face and the inner wall of the frame there is a support, which is an anatomical roller located around the mouth area, or an arc passing along the lower or upper jaw.

The disadvantage of this technical solution is that this mask does not have the ability to divert the air exhaled by a person into the atmosphere without mixing with the inhaled air entering the mask. (RU 2651260 C2, http://new.fips.ru).

Of the known technical solutions, the closest in purpose and technical essence to the claimed object is the solution RU 138975 U1 "Protective respirator mask", IPC A62B 18/02, containing a half mask made of a layer of flexible filter material and an exhalation valve, as well as a headband attached to the half mask and / or temples and a tube made of a thin plastic material, fixed by a part of the surface to the lower edge of the half mask from its inner side, while the length of the inner part of the tube is made with the possibility of gripping its upper end by the user's lips for exhalation, and the exhalation valve is made in the form of a whistle, in which has at least one free channel for exhausting exhaled air and which is attached to the lower end of the tube protruding from the half mask.

The disadvantage of this technical solution is that the design of this protective mask is not able to completely prevent the ingress of exhaled air into the space under the mask, which leads to mixing of the inhaled and exhaled air. (RU 138975 U1, http://new.fips.ru).

The task to which the claimed solution is directed is the development of a protective mask design, which excludes mixing of the exhaled and inhaled air in the undermask space.

The essence of the invention

This problem is solved due to the fact that the half mask (1) of FIG. 1 at the level of the user's mouth has a mouthpiece (5), which is an elastic mouth guard (5.1) for the upper and lower row of teeth with a through hole located in the central part between the platforms for the upper and lower row of teeth. The mouthguard (5.1) is connected to the channel (5.2), repeating the shape of the hole, and has a plate (5.3) at the outlet from the channel (5.2), curved in a semicircle, which follows the contours of the user's face and, in contact with the user's face around the lips, isolates the oral cavity ...

The mouthpiece (5) is mated with a "T-shaped" tube (6), at the outlet openings of which an exhalation valve (4) is installed. This makes it possible to divert the air exhaled through the mouth directly into the atmosphere without it entering the undermask space, thereby eliminating mixing with the inhaled air entering the undermask space through the inhalation valve (3), which is located on the surface of the half mask (1) between the nose and the user's mouth ...

The protective mask with mouthpiece comprises a half mask (1) of FIG. 1 domed shape that covers the nose, mouth and lower chin. It is made of an airtight material. The edges of the half mask (1) fit snugly to the surface of the face. As an attachment (2) of a half mask (1) on the user's face, temples or a strap are used, which is fixed on both sides along the edges of the half mask (1) and allows you to fix the half mask (1) on the back of the user's head or two straps, one of which is located in the upper part half masks (1), and the other in the lower part and both are fixed on both sides along the edges of the half mask (1). In the particular case of execution, the straps have the ability to adjust the length. Also, as an attachment (2) of the half mask (1) on the user's face, in a particular case of execution, a headband is used, made of elastic textile tapes located around and across the head with the possibility of changing the length of the tapes, which mates with the half mask (1) on both sides along the edges half masks (1). In the central part on the surface of the half mask (1), an inhalation valve (3) is installed between the user's nose and mouth.

In the sub-mask space at the level of the user's mouth, the half mask (1) of FIG. 1 contains a mouthpiece (5). The mouthpiece (5) is an elastic mouthguard (5.1) for the upper and lower row of teeth with a through hole located in the central part between the platforms for the upper and lower row of teeth, which is connected to the channel (5.2), repeating the shape of the hole, and having a the outlet from the channel (5.2) is a plate (5.3) curved in a semicircle, which follows the contours of the user's face and, in contact with the user's face around the lips, isolates the oral cavity.

Mouthpiece (5) fig. 1 is mated with a "T" tube (6). The outlet openings of the "T" tube (6) are connected to the exhalation valve (4). The exhalation valve (4) is located on the surface of the half mask (1).

The technical result consists in creating a protective mask, the design of which excludes mixing of the exhaled and inhaled air in the undermask space due to the fact that the half mask in the undermask space at the level of the user's mouth has a mouthpiece coupled with a "T-shaped" tube at the outlet openings of which an exhalation valve is installed, thereby allowing the air exhaled through the mouth to be diverted directly into the atmosphere without it entering the mask space.

Brief Description of Drawings:

in fig. 1 is a schematic illustration of a protective mask with a mouthpiece. Side view;

Brief description of structural elements:

1 - half mask;

2 - mount;

3 - inhalation valve;

4 - exhalation valve;

5 - mouthpiece;

5.1 - mouth guard;

5.2 - channel;

P. 3 of 4

5.3 - plate;

6 - tube;

Implementation of the declared decision:

The stated solution works as follows.

Put on the half mask (1) of FIG. 1 over the nose and mouth, using the mount (2), the mouthpiece (5) is inserted into the mouth and pressed tightly with the jaw. Inhale through the nose. Air from the atmosphere passes through the inhalation valve (3) into the undermask space and enters the lungs through the nose. Exhale through the mouth. Exhaled air through the mouthpiece (5), "T" tube (6) and the exhalation valve (4) enters the atmosphere.

Claims (2)

1. A protective mask with a mouthpiece, including a half mask, temples, an inhalation valve, an exhalation valve, characterized in that the mouthpiece is mated with a "T-shaped" tube, the outlet openings of which are connected to an exhalation valve located on the surface of the half mask. 2. The mask according to claim. 1, characterized in that the half mask has a headband made of elastic textile tapes located around and across the head with the possibility of changing the length of the tapes, which mates with the half mask on both sides along the edges of the half mask.

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