BG113333A - Protective shield for people in danger of infection - Google Patents

Abstract

A protective shield for people in danger of infection is an invention relating to the field of medicine - especially for medical workers, for protection against different viruses. The device is made of a screen of transparent material and is sealed on the sides with silicone for a tighter fitting to the face. The application is for air filtration for the user and for general protection. It attaches behind the nape of the neck with elastic bands that fasten. The filtered air is drawn in and purified from a container. When the air passes through the mask and goggles, it exits through outlet valves with a filter. The shield consists of two parts - goggles and a mask. A second air supply option is from an internal central aspiration or from an external air conditioner to heat or cool the air according to the preference of the attending medical team. If the container is not in operation there is a back-up option - as needed for use in a larger perimeter of operation either outside the medical facility or outdoors.

Description

Prior art

Two inventions with a similar application and construction are known: RU 2 736 142 C1 - a full helmet with an inlet filter with a fin located above and an outlet flap located below; and RU 199 153 U1 - a full suit with a fan located on the left and an exit valve on the right and filters. The described helmets are of one piece and cannot be divided into two.

With a safety helmet for people at risk of infection, the shortcomings of the previous models are solved. Air is drawn through a filter with a battery-powered fan located in a canister on the waist. The helmet is composed of two parts - a mask through which the air enters, and safety glasses, which protect the eyes from vapors, gas and the like, but can be removed if necessary, for example, in case the medical person wears diopter glasses. Air fed from the container also enters the glasses.

The disadvantage of the previous inventions is that they cannot be divided into two parts, and when sweating, there is no possibility for the wearer to remove the sweat, which can impair vision, breathing, concentration. In this model, the air circulating inside cools and prevents sweating, and introduces sanctifying aromas that improve the breathing of the attending physicians. In the other models, the air is sucked in from the environment, and this gives rise to the premise that it cannot be completely '0 purified, since the air flow is uncontrollable. The air may be saturated with odors, gases or chemical compounds depending on the nature of the work.

The container can be equipped with different types of filters - against gases, viruses, microbes, particles.

Technical essence

The safety helmet for people at risk of infection is available in two versions. Variant 1 has an upper part of safety glasses /1/ with a button /8/ to control the amount of the necessary air exchange, which is delivered through hoses /9/ and /11/ from the container /12/.

Option 2 is larger glasses that can accommodate glasses with diopters or with tinted lenses against eye irritation. In this variant, there is an air flow entering /7/ and exiting the container /12/ according to the user's desire for his convenience and comfort. The lower part consists of a mask /2/ which accommodates and protects the nose and mouth, with openings for air intake and exhaust. The hose /11/ from the container /12/ enters the inlet opening, and the outlet has an attached valve.

Example of implementation of the invention:

Safety helmet for people at risk of infection

The invention relates to air purification. It consists of safety parts glasses /1/ and lower part - mask /2/ made of transparent material /3/ (plexiglass). A silicone sealant /4/ is attached to the edges of the plexiglass, which adheres to the user's face.

The glasses /1/ are fastened with an elastic band /5/, and a second band /6/ with a clasp, for good fixation, which goes over the ears behind the back of the head. On the lower part of the glasses /1/, a tube P/ is placed during the production, which is embedded in the silicone, for air entry from a button /8/, adjusts the pressure for air exchange from a tube /9/ with an attached distribution nipple /10/. One opening is for a mask /2/, and the other a hose /11/ fed from the container /12/. The goggles have an air vent with a valve on the side to keep water out.

The mask /2/ is made of transparent Plexiglas material, and there are silicone seals on the edges /4/. It is fixed with an elastic band /14/ and a second band with a fastener for fixation /15/. The band goes under the ears and behind the back of the head. If necessary, an additional strip can be laid at the lower end of the mask /2/, which goes along the silicone /4/ and surrounds the back of the head. A mask /2/ is fed from a container /12/ through an air inlet hose /11/. The container /12/ has three actions - it purifies, it contains batteries /13/, a start/stop button /16/, and an electric motor /17/, gauzes /18/, placed at the entrance and exit. To purify the air from solid particles, a perforated box /19/ is placed in the container /12/, in which either flavoring agents or solid elements are placed.

The container /12/ is attached to the user on a waist belt or on the back for ease of use. Feeding can be done without a container /12/, but from external aspiration. A third option is for the power supply to come from an air conditioner, heated or cooled for the needs of the specific case and according to the weather.

Claims (7)

1 - Safety helmet for people at risk of infection is characterized by the fact that the helmet consists of two parts, transparent and sealed at the end - glasses /1/ and mask /2/. 2 - A protective helmet for people at risk of infection is characterized by the fact that, from ex. 1, it purifies the air through filters /18/ of a container /12/, and the visual field is free of sweating and condensation. 3 - A safety helmet for people at risk of infection is characterized by the fact that, from example 1, the glasses /1/ have an inlet and outlet for circulating controlled air. 4 - A protective helmet for people at risk of infection is characterized by the fact that, from ex. 1, the two parts of the helmet - glasses /1/ and mask /2/ are joined and fastened to each other with the help of silicone to form a common helmet. They can also be used separately. 5 - A protective helmet for people at risk of infection is characterized by the fact that the air is introduced into a container /12/ for purification by means of gauze /18/. In the container /12/ the air is purified by a box with solid particles from odors, chemicals, gas, viruses, bacteria, dust particles. 6 - A safety helmet for people at risk of infection is characterized by the fact that the helmet can be powered by external sources when needed - aspiration, air conditioning. 7 - A safety helmet for people at risk of infection is characterized by the fact that the glasses /1/ can be enlarged as an option, and can accommodate glasses with a diopter or darkened ones, against eye irritation from strong light.