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Ultraviolet air sterilization respirator

An air disinfection and ultraviolet technology, applied in the field of medical devices, can solve the problems of low protection efficiency and human injury, and achieve the effect of reducing the entry of bacteria and viruses into the human respiratory tract

Pending Publication Date: 2020-06-05
SHENZHEN RUNWO AUTOMATION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, the protection efficiency of this filtering method is relatively low, and some bacteria or viruses will still enter the human respiratory tract through the filter layer and cause harm to the human body.

Method used

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  • Ultraviolet air sterilization respirator
  • Ultraviolet air sterilization respirator
  • Ultraviolet air sterilization respirator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] See figure 1 , figure 2 as well as image 3 , An ultraviolet air disinfection ventilator, comprising a face mask 1, a breathing cavity formed after the face mask 1 is attached to the face, a purified air channel 2 and an ultraviolet light source 6; the purified air channel 2 is in communication with the breathing cavity, The ultraviolet light source 6 is placed in the purified air passage 2.

[0025] After the mask 1 is attached to the face, the air in the breathing cavity can only be exchanged with the air outside the ventilator through the purified air channel 2. Ultraviolet rays with a wavelength range of 250-260nm have a good killing effect on bacteria, viruses and spores. After ultraviolet radiation in this wavelength range, the DNA of bacteria, viruses, and spores will be damaged and damaged, which can lead to death. This lethal process is: After ultraviolet radiation, the bonds and strands of the DNA of bacteria, viruses and spores will break, cross-linking reacti...

Embodiment 2

[0027] On the basis of the structure of the above embodiment, the purified air passage 2 is cylindrical, and its two ends are respectively provided with a first opening and a second opening for air exchange; the purified air passage 2 passes through the first opening and The ventilator is externally connected, and the purified air channel 2 is also connected to the breathing chamber through the second opening; a first filter 3 is provided on the first opening, and a second filter is provided on the second opening. Net 4. The ultraviolet light source 6 is located between the first filter screen 3 and the second filter screen 4; the second filter screen 4 is located between the ultraviolet light source 6 and the face mask 1.

[0028] The first filter 3 is used to filter dust and other substances in the inhaled air for preliminary filtration, to reduce the pollution degree of the air entering the purified air channel 2, and to improve the ultraviolet disinfection effect; the second ...

Embodiment 3

[0031] Based on the structure of the foregoing embodiment, the second opening is further provided with an ultraviolet blocking portion 5 for protecting the human body, and the ultraviolet blocking portion 5 is located between the ultraviolet light source 6 and the second filter portion 4.

[0032] The ultraviolet blocking part 5 is arranged to block the ultraviolet rays from passing through the second filter part 4 and then acting on the human skin, so as to prevent the ultraviolet rays from damaging the human body.

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PUM

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Abstract

The invention provides an ultraviolet air sterilization respirator which comprises a mask, a respiration cavity, an air purification channel and an ultraviolet light source, wherein the air purification channel communicates with the respiration cavity; and the ultraviolet light source is arranged in the air purification channel. After the mask is fitted to a face, air in the respiration cavity canbe exchanged only with air outside the respirator through the air purification channel. After radiation of ultraviolet rays of which the wavelength range is within 250-260nm, bonds and chains of DNA(deoxyribonucleic acid) of bacteria, viruses and spores can be broken, a cross-linking reaction can be caused and photochemical products can be formed, then microorganisms such as the bacteria, viruses and spores lose activity and cannot be replicated by self, and a microorganism sterilization and disinfection function is achieved. Microorganisms in air passing through the air purification channelare all radiated and killed by the ultraviolet light source, so that bacteria and viruses with activity, which enter human respiratory tracts, can be effectively reduced when air of the air purification channel is exchanged with air in the respiration cavity.

Description

Technical field [0001] The invention relates to the technical field of medical devices, in particular to an ultraviolet air disinfection ventilator. Background technique [0002] In hospitals or specific places, in order to prevent bacteria or viruses and other small harmful materials from entering the human body through the respiratory tract and causing harm to the human body, the general way is to require the on-site personnel to wear masks or respirators. The air is filtered by the mask or respirator. When entering the human respiratory tract, masks or respirators are required to filter and isolate these harmful substances to protect the human body from harm. As we all know, the protection efficiency of this filter method is relatively low, and some bacteria or viruses will enter the human respiratory tract through the filter layer, causing harm to the human body. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a vent...

Claims

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Application Information

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IPC IPC(8): A61M16/00A61L9/20
CPCA61L9/20A61M16/00
Inventor 张炳忠刘新
Owner SHENZHEN RUNWO AUTOMATION ENG CO LTD