Patent BG-113126-A (BG)
Title: Method and device for biological decontamination of air from viruses and bacteria
Inventor: ARNAUDSKI NIKOLAY
IPC: A61L9/00
Filed: 2020-04-28
Abstract: The invention relates to a device for decontamination of the air from viruses and bacteria indoors or in a flow cycle, as well as in the means of individual protection against the penetration of bacteria and viruses into the respiratory tract of the human body. The invention will find application as part of the personal protective equipment, such as masks, gas masks and others and wherever sterile air is needed. The method consists in the use of effects, in combination thereof, together or separately, with electric monopolar current with pulses of 0.2 mA to 10 mA in the frequency range from 30 kHz to 900 kHz, for different treatment with quasi-resonant frequencies with the possibility of fast fluctuating variation, direct electric current, silver and/or zinc ions, UV radiation, laser radiation and an activated carbon filter. The electric current, which is in the form of monopolar current pulses, is applied to the electrodes , as the positive potential is of the galvanized grid electrode, and that of the silver-plated grid electrode - a negative one. The electric current can be in the form of monopolar current pulses and at the same time with a direct electric current. The electric current can be capable of both a fixed frequency with an accuracy of 0.01 Hz and a frequency variation in the range from 30 kHz to 900 kHz. The electric current can be a direct electric current without frequency variation. A positive potential (anode) of the galvanized grid electrode and a negative potential (cathode) of the galvanized grid electrode is always applied to the electrodes. The grid electrodes are dense networks (sieves) of thin threads of electrically conductive metal with a wire thickness of up to 3 mm and hole sizes of 1/1 mm up to 3/3 mm, as one of them is silver-plated and the other one is galvanized. The activated carbon filter is placed between the silver-plated and the galvanized grid electrode. The UV radiation, generated by a UV source is forming a UV light "curtain" when emitted. The laser radiation is in the infrared range and forms an infrared laser "curtain". The electrodes with the filter, the UV source and the laser radiation source are covered in a frame and form a disinfection package. The device consists of a power supply unit which is connected on the one side to a low voltage power supply unit, on the other side to a control circuit board and an external communication unit with two more terminals for power supply of UV radiation source and an infra-red laser. The low voltage power supply unit is connected via a main board to a main processor to which is connected a quartz resonator. The main processor is connected via a digital-to-analog converter and an analog-to-digital converter to a current generator with leads to electrodes. The control board comprises a processor which is connected to the main processor via an optron, which is connected to the current generator, a touch-screen display and an external communication unit via a second optron. The device, designed as a face mask against bacteria and viruses, consists of a three-dimensional body adapted to fit freely in the user's nose, mouth, chin and / or eyes with elastic ties for tying at the back of the user's head, whereby the disinfection package is hermetically and immovably attached to the body of the mask as a breather, and the disinfection package is connected via a cable to the device whose power supply is a set of lithium-ion or other batteries. The device, by means of an external communication unit has remote access for control and communication via the Internet, mobile operator or other type of wired or wireless communication.