INDIVIDUAL DEVICE FOR PROTECTION OF RESPIRATORY ORGANS FROM INFECTION Russian patent published in 2021 - IPC A61L2/10 A61L9/20 A41D13/11 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment, specifically to versions of an individual device for protecting respiratory organs from infection. In the first version, the device comprises a half-mask. Half-mask is made in the form of a housing having free undermask space, conjugated with: inspiratory-expiratory valves of petal type. Half-mask has a nose clamp fixing a half-mask in the nose bridge area, elastic straps of the headband, and also through its base with a support element with a case which contains a filter element, bactericidal radiator in the form of a radiation source connected to a control unit and a power supply. Device is equipped with portable hardware enclosure of control unit. Control unit includes: a control board, a battery, a power supply, a generator of high-voltage electric pulses, an air flow sensor and an ozonizer, connected by a branch pipe supplying the ozone-containing air mixture, with a bactericidal radiator, made in the form of a replaceable single-cell case mounted in a support element of the housing, which includes a reaction chamber in the form of a polymer shell conjugated with a hollow metal cylinder, the inner surface of which is made mirror-like. Reaction chamber is limited, at the inlet end – with a supporting plate filter made of metal of cellular structure with fixed holder and installed in it, electric-discharge unit connected to generator of high-voltage electric pulses of power supply source, exciting plasma-dynamic spark discharges, light quanta of which in the UV radiation wavelength range of 2,300–3,000 Å provide pulsed photolysis of ozone from the ozone-containing air mixture to obtain highly active forms of oxygen, and at outlet end of reaction chamber – combined filter, including plate filter of metal of cellular structure, conjugated with deactivator of residual ozone in form of porous capsule-filter filled with capillary-porous carbon material. Device is equipped with a transparent face shield connected to a resilient-deformable holder located on the nasal clamp of the half-mask. Device is equipped with a pad, which is permanently connected to the half-mask along the obturation band contour. Device is equipped with replaceable disk-like resilient-elastic washers, which are plugs of uncontrolled petal-type inspiratory-expiratory valves. In the second version, the device is equipped with a semiconductor UV light-emitting diode. In the third version consists of two reaction chambers in the form of polymer shells, each of which is conjugated with hollow metal cylinders having a mirror inner surface, reaction chambers are interconnected and joined by a connecting nut. First reaction chamber is confined at input end – by a carrier plate-like filter of metal of cellular structure with fixed holder and installed in it at least one semiconductor UV-LED connected to power supply source, light quanta of which in the UV radiation wavelength range is less than 1,900 Å, impulse ozone synthesis is initiated, and the output end of the first reaction chamber, which is connected to the inlet end of the second reaction chamber, is separated from it by a separating element in form of a plate filter of metal of a cellular structure with a fixed holder and installed in it, connected to a power source, a semiconductor UV light-emitting diode in the UV radiation wavelength range of 2,300–3,000 Å, pulsed photolysis of ozone is initiated from an ozone-containing air mixture formed in a first reaction chamber to obtain highly reactive oxygen species. At the outlet end of the second reaction chamber, a combined filter is installed, which includes a plate filter made of metal of a cellular structure, conjugated with a residual ozone deactivator in the form of a porous capsule-filter filled with capillary-porous carbon material.

EFFECT: technical result is optimizing the structure and composition of the individual device for respiratory protection against infection, providing the disinfection of the air flow inhaled and exhaled by the user by arranging, in the volume of the reaction chamber of the device, step-by-step and complex interaction of ozone-containing air mixture supplied to the chamber or created therein with light quanta of different UV radiation wavelengths, as well as reducing the risk of frontal infection of the conjunctiva of the eyes from the environment and infection of the environment by the infected half-mask user.

4 cl, 17 dwg