CN111227362A - Face mask/mouth mask capable of killing germs or viruses in exhaled breath - Google Patents
Face mask/mouth mask capable of killing germs or viruses in exhaled breath Download PDFInfo
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- CN111227362A CN111227362A CN202010181177.1A CN202010181177A CN111227362A CN 111227362 A CN111227362 A CN 111227362A CN 202010181177 A CN202010181177 A CN 202010181177A CN 111227362 A CN111227362 A CN 111227362A
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- 241000700605 Viruses Species 0.000 title claims abstract description 66
- 230000002147 killing effect Effects 0.000 title claims abstract description 60
- 244000052616 bacterial pathogen Species 0.000 title claims abstract description 49
- 239000010410 layer Substances 0.000 claims abstract description 183
- 238000001914 filtration Methods 0.000 claims abstract description 77
- 230000001954 sterilising effect Effects 0.000 claims abstract description 52
- 150000002978 peroxides Chemical class 0.000 claims abstract description 39
- 239000000126 substance Substances 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 20
- 239000011241 protective layer Substances 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 46
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 42
- 238000004659 sterilization and disinfection Methods 0.000 claims description 41
- 239000000292 calcium oxide Substances 0.000 claims description 30
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 30
- 239000004343 Calcium peroxide Substances 0.000 claims description 28
- LHJQIRIGXXHNLA-UHFFFAOYSA-N calcium peroxide Chemical group [Ca+2].[O-][O-] LHJQIRIGXXHNLA-UHFFFAOYSA-N 0.000 claims description 28
- 235000019402 calcium peroxide Nutrition 0.000 claims description 28
- 229920000742 Cotton Polymers 0.000 claims description 27
- 239000004743 Polypropylene Substances 0.000 claims description 27
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 24
- 238000001179 sorption measurement Methods 0.000 claims description 24
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- 239000012528 membrane Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 11
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- 239000002356 single layer Substances 0.000 claims description 3
- 239000000645 desinfectant Substances 0.000 claims 1
- 230000008030 elimination Effects 0.000 claims 1
- 238000003379 elimination reaction Methods 0.000 claims 1
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- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 6
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- 229910001861 calcium hydroxide Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
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Images
Classifications
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/30—Antimicrobial, e.g. antibacterial
- A41D31/305—Antimicrobial, e.g. antibacterial using layered materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/14—Filtering means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/20—Method-related aspects
- A61L2209/21—Use of chemical compounds for treating air or the like
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physical Education & Sports Medicine (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention discloses a mask/gauze mask capable of killing germs or viruses in exhaled breath, which comprises a shielding surface of the mask/gauze mask and a binding belt connected with the shielding surface, wherein an exhalation port and an inhalation port are formed in the shielding surface, and an exhalation one-way valve and a filtering and killing filter element are arranged in the exhalation port; the air suction port is internally provided with an air suction one-way valve; the filtering and sterilizing filter element comprises a plurality of layers of protective layers and a sterilizing and sterilizing cushion layer, wherein the sterilizing and sterilizing cushion layer comprises peroxide, oxide and strong alkaline substances which are wrapped in the cushion layer. The mask can intercept the virus and/or germ discharged to the atmosphere by a patient through a respiratory tract; pathogenic bacteria and/or viruses in the gas sucked out by the patient are reduced and even completely eliminated; the patient can conveniently inhale clean and fresh air or oxygen; the rehabilitation of the patient is promoted; protecting susceptible people; the hospital monitoring system is low in cost and convenient to carry and use, the working difficulty of the hospital in the sensing control aspect is reduced, the comprehensive efficiency is improved, and the subsequent investment which may be paid by all parties in the society for the purpose is reduced and reduced.
Description
Technical Field
The invention belongs to the technical field of protection of pathogenic microorganisms, and relates to a mask/gauze mask capable of killing germs or viruses in exhaled breath.
Background
In the development history of human society, diseases are transmitted through respiratory tracts, and numerous serious disasters are brought to human survival and social production. Tuberculosis, coronavirus, novel coronavirus and the like, a myriad of known or unknown pathogens cause diseases transmitted through the respiratory tract, and are always defenses. Every time the disease is pandemic, huge losses are brought to human society and health.
The most effective method for controlling the spread of infectious diseases is to control the source of infection, cut off the transmission route and protect the susceptible population. The invasion and sustained injury abilities of pathogenic bacteria or viruses to human bodies are mainly reflected in the following two aspects without considering the immunity of people:
1. virulence of a pathogenic bacterium or virus;
2. the number of pathogenic or viral attacks on the host's body in a single or multiple passes.
The disease transmitted through respiratory tract is characterized in that the pathogen can be transmitted through sputum, droplets and even exhaled air of patients, and the environment is polluted. Not only the patient can inhale pathogenic bacteria or viruses repeatedly, but also the treatment effect of antibiotics or antiviral drugs is reduced. The surrounding healthy population may also become infected after inhaling the patient's exhaled pathogens or viruses.
Controls and reduces the repeated inhalation of the patient, kills and reduces the number of germs or viruses in the environment, not only can promote the recovery of the patient, but also can protect healthy people and avoid the disease from spreading in a wider range or further.
The existing main methods for controlling the infection source and cutting off the transmission path are to isolate the patient, disinfect the environment and protect the susceptible person, but the methods can not effectively reduce the harm of the exhaled gas of the patient to the environment, and can not prevent or reduce the re-inhalation of the pathogenic bacteria or viruses by the patient. People always protect passively and disinfect or kill after viruses or germs spread.
Disclosure of Invention
The invention solves the problem of providing a mask/gauze mask which can kill pathogenic bacteria or viruses in exhaled air, wherein the pathogenic bacteria or viruses in the exhaled air of a patient are killed, disinfected and then discharged into the atmosphere, so that the source of infection is controlled in the simplest and most convenient way, the transmission path is cut off, and a susceptible person is protected.
The invention is realized by the following technical scheme:
a face mask/gauze mask capable of killing germ or virus in exhaled breath comprises a shielding surface of the face mask/gauze mask and a binding belt connected with the shielding surface, wherein an exhalation port and an inhalation port are formed in the shielding surface, and an exhalation one-way valve and a filtering and killing filter element are arranged in the exhalation port; the air suction port is internally provided with an air suction one-way valve;
the filtering and sterilizing filter element comprises a plurality of protective layers and at least comprises a filter layer, an adsorption layer and a PP cotton filter element from inside to outside in sequence; one or more layers of disinfection and killing cushion layers are arranged between the protective layers; the disinfection cushion layer contains peroxide and/or oxide for disinfection and strong alkaline matter.
The expiration one-way valve is arranged close to the inner port of the expiration port, and the filtering and sterilizing filter element is arranged close to the outer port of the expiration port; a filter screen is arranged between the expiration one-way valve and the filtering and sterilizing filter element, and an openable packaging screen cover is arranged outside the filtering and sterilizing filter element;
the filtering and sterilizing filter element sequentially comprises a 0.3 mu m filter layer, a sterilizing cushion layer, an active adsorption layer, a 0.1 mu m filter layer and a PP cotton filter element from inside to outside.
The sterilizing cushion layer is arranged in a plurality of layers in the filtering sterilizing filter element and is respectively arranged among the layers of the 0.3 mu m filter layer, the active adsorption layer, the 0.1 mu m filter layer and the PP cotton filter element.
Further, the filtering, disinfecting and killing filter element sequentially comprises from inside to outside:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
a first sacrificial pad layer;
an active adsorption layer: a crystalline activated carbon layer is adopted;
a second sacrificial pad layer;
0.1 μm filter layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein, the first and second killing cushion layers are loose porous structure cushion layers prepared by mixing peroxide and/or oxide and strong alkaline substances.
Specifically, the first disinfection cushion layer and the second disinfection cushion layer are formed by mixing 60-85 parts by mass of peroxide and/or oxide, 4-20 parts by mass of strong alkaline matter and 5-20 parts by mass of water to form a loose porous cushion layer;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed;
the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
Further, the high-density fiber filter layer is made of polypropylene fibers, medical mask needle cotton or medical non-woven fabrics;
the crystal activated carbon layer is formed by alternately overlapping activated carbon fibers and/or activated carbon cloth;
the ULPA and/or HEPA high-precision filter membranes are alternatively laminated into a sheet in single layers or multiple layers.
An air suction one-way valve is arranged in the air suction port, and an air filter screen is arranged at the air inlet;
the shielding surface is also provided with an oxygen inhalation port.
The invention also provides a filtering and sterilizing filter element for the face mask/mouth mask, which can sterilize the germ or virus of the exhaled breath, the filtering and sterilizing filter element is arranged in the face mask/mouth mask and comprises a plurality of protective layers, and the filtering and sterilizing filter element at least comprises a filter layer, an adsorption layer and a PP cotton filter element from inside to outside; one or more layers of disinfection and killing cushion layers are arranged between the protective layers;
the disinfection cushion layer contains peroxide and/or oxide and strong alkaline substances.
The filtering sterilizing filter element at least comprises from inside to outside in sequence:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
eliminating and killing the cushion layer;
an active adsorption layer: a crystalline activated carbon layer is adopted;
0.1 μm filter layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein the disinfection and sterilization cushion layer is a cushion layer with a loose porous structure prepared by mixing 60-85 parts of peroxide and/or oxide, 4-20 parts of strong alkaline substance and 5-20 parts of water;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed; the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
The filtering sterilizing filter element at least comprises from inside to outside in sequence:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
eliminating and killing the cushion layer;
0.1 μm adsorption filtration layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein the disinfection and sterilization cushion layer is a cushion layer with a loose porous structure prepared by mixing 60-85 parts of peroxide and/or oxide, 4-20 parts of strong alkaline substance and 5-20 parts of water;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed; the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
Compared with the prior art, the invention has the following beneficial technical effects:
the existing common mask can only adsorb partial pathogenic bacteria and viruses, can not kill the pathogenic bacteria and viruses and can not avoid polluting the environment again; the oxygen mask used in hospitals has only oxygen inhalation function. Respirators or face masks are used only to prevent the inhalation of toxic gases, but not to prevent the discharge of exhaled gases containing viruses, germs and/or contaminants into the atmosphere.
The mask/gauze mask capable of killing germs or viruses in exhaled breath, provided by the invention, is characterized in that a gate valve is worn on each diagnosed or suspected infection source, so that the activity of germs and/or viruses is controlled, killed and reduced from the source, the environment polluted by the germs and/or viruses in exhaled breath of patients is prevented to the greatest extent from the source, and the probability of virus and/or germ invasion of the patients and healthy people is reduced; ensuring that the patient inhales fresh and clean oxygen and/or air, promoting the recovery of the patient and protecting healthy susceptible people; in particular, the pressure of the medical staff can be relieved.
The invention provides a face mask/mouth mask capable of killing germs or viruses in exhaled breath, wherein a filtering and killing filter element is additionally arranged in a one-way exhalation valve of the face mask/mouth mask, the filter element for killing or reducing the discharge of the viruses and/or the germs can have six layers of protection, and the six layers of protection are as follows from inside to outside in sequence: 1) high-density fiber filter layer: filtering large-particle substances, and enabling pollutants below 0.3 micron in exhaled air to pass through; 2) the first over-sterilization cushion layer is used for killing, destroying or reducing the biological activity of viruses and/or germs by using different physical and chemical materials, medicaments and the like according to the biological characteristics of the viruses and/or germs; 3) adsorption layer (activated carbon adsorption layer): deodorizing, removing peculiar smell, decomposing partial harmful substances, and adsorbing degraded germs or viruses; 4. the second filtering and sterilizing cushion layer can adopt the same material and structure of the filtering layer as the first filtering and sterilizing layer; 5) ULPA and/or HEPA high precision filtration membranes: harmful substances in the exhaled air are efficiently filtered, the filtering precision can reach below 0.1-0.3 micrometer, and the filtering efficiency exceeds 99.999 percent; 6) a PP cotton filter element: further remove residual harmful substances in the exhaled air, so that the exhaled air is cleaner. The combination formed by the different materials can kill, degrade and adsorb germs and viruses, can deodorize and remove peculiar smell, and can efficiently filter harmful substances in exhaled air. The single purification effect exceeds N95, the comprehensive filtration precision is less than 0.05 micron (the diameter of coronavirus is more than 0.06-0.22 micron), and the mask is not stuffy after being worn and has low expiratory resistance.
Furthermore, the mask/gauze mask capable of killing germs or viruses in exhaled breath provided by the invention has the advantages that the killing cushion layer is a loose porous structure cushion layer prepared by mixing calcium peroxide and/or calcium oxide, sodium hydroxide and potassium hydroxide, and the filter element mainly kills or reduces the activity of germs and viruses in exhaled breath by virtue of various actions such as oxidation, strong alkalinity, high temperature and the like; but also can be conveniently replaced from the exit of the caller, thereby ensuring the killing effect; in addition, due to the water absorption of the filter element, water vapor in the mask can be absorbed, and a better breathing microenvironment is provided.
The main components of the disinfection cushion layer, namely calcium peroxide and/or calcium oxide, can react with water and carbon dioxide in exhaled air:
2CaO2+2H2O→2Ca(OH)2+O2；
CaO+H2O→Ca(OH)2；
Ca(OH)2+H2O+CO2→CaCO3+2H2O；
Ca(OH)2+H2O+2CO2→Ca(HCO3)2+H2O。
the reaction is nontoxic and harmless to human bodies, the generated oxygen has a killing effect on bacteria and viruses, and the crystal activated carbon layer and the porous structure cushion layer containing calcium peroxide are alternately stacked, so that part of calcium peroxide can be catalyzed to release strong oxidation type hydroxyl free radical-OH, and germs and viruses can be killed through strong alkalinity and oxidizability; in addition, the strong alkaline water absorption reaction releases a large amount of heat, so that the temperature of the filter element is quickly raised, and the alkaline substance is regulated (such as regulating CaO)2And CaO) can control the duration of the reaction, and the germs and viruses adsorbed by the filter element can be killed by high temperature.
In order to avoid the continuous catalysis of the activated carbon to the peroxide, the loose porous structure cushion layer and the crystal activated carbon layer which are prepared by mixing the calcium peroxide, the calcium oxide, the sodium hydroxide and the potassium hydroxide are not suitable to be directly molded together. Separate packages of the two can be made and only stacked together at the time of use. The single packaging can strengthen the protection of the superpropagator, and is more convenient and efficient.
The mask/respirator capable of killing germs or viruses in exhaled breath provided by the invention has high comprehensive efficiency of filtering, killing and filtering the filter element, can be replaced for many times (the mask/respirator can be conveniently replaced without disassembling the mask as long as the packaging net cover outside the filter element is opened), has low cost and is convenient to carry and use; reducing or reducing subsequent investment in sense control in hospitals and society.
The mask with the main function of purifying the exhaled air of the infected person can obviously improve the prevention and control effect of the diseases infected through the respiratory tract, so that the prevention and control work of controlling the infection source, cutting off the transmission path and protecting susceptible people becomes simpler and more efficient, the manpower and material resources used by hospitals, society and patients for preventing the disease transmission and diffusion are reduced, and the patients can benefit from the mask.
Drawings
FIG. 1 is a schematic view of a mask of the present invention provided with an air screen;
FIG. 2 is a schematic view of a mask of the present invention without an air screen;
wherein, 1 is an exhalation port; 2 is an air suction port provided with a filter screen; 3 is an oxygen interface; 4 is an air suction port; 5 is a face mask.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The invention provides a mask/gauze mask capable of killing germs or viruses in exhaled breath, which is provided with a filtering and killing filter element for killing viruses and/or germs in exhaled breath of a patient, and has the following effects:
1. the virus and/or the germ in the exhaled air of the patient are killed or reduced.
2. The patient is facilitated to inhale fresh air and oxygen with significantly reduced content of germs and/or viruses.
The filtering and sterilizing filter element is arranged in the expiration opening, and a one-way valve is also arranged in the expiration opening to prevent the exhaled air from being repeatedly inhaled; the one-way valve is arranged at the inner opening of the exhaling port, the filtering and sterilizing layer for killing or reducing viruses and/or germs in the exhaled air is arranged at the outer opening of the exhaling port, and the detachable net cover is arranged at the open connection part of the one-way valve and the external atmosphere, so that the filtering and sterilizing layer can be conveniently replaced for many times.
Referring to fig. 1, the mask/gauze mask capable of killing germs or viruses in exhaled breath provided by the invention comprises a shielding surface of the mask/gauze mask and a binding belt connected with the shielding surface, wherein an exhalation port and an inhalation port are formed on the shielding surface, and an exhalation one-way valve and a filtering and killing filter element are arranged in the exhalation port; the air suction port is internally provided with an air suction one-way valve;
the filtering and sterilizing filter element comprises a plurality of protective layers and at least comprises a filter layer, an adsorption layer and a PP cotton filter element from inside to outside in sequence; one or more layers of disinfection and killing cushion layers are arranged between the protective layers; the disinfection cushion layer contains peroxide and/or oxide for disinfection and strong alkaline matter.
The filter layer, the adsorption layer and the PP cotton filter element are mainly used for filtering and can be increased or changed according to actual needs; at least one layer of the disinfection and sterilization cushion layer can also be arranged between the layers of the protective layer.
Furthermore, the expiration one-way valve is arranged close to the inner port of the expiration port, and the filtering and sterilizing filter element is arranged close to the outer port of the expiration port; a filter screen is arranged between the expiration one-way valve and the filtering and sterilizing filter element, and an openable packaging screen cover is arranged outside the filtering and sterilizing filter element;
the filtering and sterilizing filter element sequentially comprises a 0.3 mu m filter layer, a sterilizing cushion layer, an active adsorption layer, a 0.1 mu m filter layer and a PP cotton filter element from inside to outside.
Specifically, the disinfection and sterilization cushion layer is arranged in a plurality of layers in the filtering and disinfection filter element and is respectively arranged among the layers of the 0.3 mu m filter layer, the active adsorption layer, the 0.1 mu m filter layer and the PP cotton filter element.
Furthermore, the filtering and sterilizing filter element sequentially comprises from inside to outside:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
a first sacrificial pad layer;
an active adsorption layer: a crystalline activated carbon layer is adopted;
a second sacrificial pad layer;
0.1 μm filter layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein, the first and second killing cushion layers are loose porous structure cushion layers prepared by mixing peroxide and/or oxide and strong alkaline substances.
Specifically, the filtering and disinfecting layer is provided with six layers of protection, which are sequentially from inside to outside: 1) high-density fiber filter layer: filtering large-particle substances, and enabling pollutants below 0.3 micron in exhaled air to pass through; 2) the first over-sterilization cushion layer is used for killing, destroying or reducing the biological activity of viruses and/or germs by using different physical and chemical materials, medicaments and the like according to the biological characteristics of the viruses and/or germs; 3) crystalline activated carbon layer: deodorizing, removing peculiar smell, decomposing partial harmful substances, and adsorbing degraded germs or viruses; 4. the second filtering and sterilizing cushion layer can adopt the same or different filtering layer material and structure as the first filtering and sterilizing layer; 5) ULPA and/or HEPA high precision filtration membranes: harmful substances in the exhaled air are efficiently filtered, the filtering precision can reach below 0.1-0.3 micrometer, and the filtering efficiency exceeds 99.999 percent; 6) a PP cotton filter element: further remove residual harmful substances in the exhaled air, so that the exhaled air is cleaner.
Furthermore, the mask/gauze mask capable of killing bacteria or viruses in exhaled breath provided by the invention is characterized in that the filtering and killing layer is a loose porous structure cushion layer prepared by mixing calcium peroxide and (or) calcium oxide, sodium hydroxide, potassium hydroxide and (or) other medicines, wherein the calcium peroxide and (or) calcium oxide (CaO)2CaO, about 65-85%), sodium hydroxide (NaOH, about 3-15%), potassium hydroxide (KOH, about 1-5%), water (H)2O, about 5-20%). The filter element mainly depends on oxidation, strong alkalinity and/or medicines to kill or reduce the activity of germs and viruses in the exhaled air.
The main components of the medicine are calcium peroxide and calcium oxide which meet water and carbon dioxide in exhaled air and can generate the following reactions:
2CaO2+2H2O→2Ca(OH)2+O2；
CaO+H2O→Ca(OH)2
Ca(OH)2+H2O+CO2→CaCO3+2H2O；
Ca(OH)2+H2O+2CO2→Ca(HCO3)2+H2O
the reaction is nontoxic and harmless to human bodies, the generated oxygen has a killing effect on bacteria and viruses, and the activated carbon can catalyze part of calcium peroxide to release strong oxidation type hydroxyl free radical-OH and has a strong effect of killing bacteria and viruses.
In order to avoid the continuous catalysis of the peroxide by the activated carbon, the loose porous structure cushion layer containing the calcium peroxide and the crystal activated carbon layer are not suitable to be directly molded together. Separate packages of the two can be made and only stacked together at the time of use. The single packaging can strengthen the protection of the superpropagator, and is more convenient and efficient.
Further, the first disinfection cushion layer and the second disinfection cushion layer are made by mixing 60-85 parts by mass of peroxide and/or oxide, 4-20 parts by mass of strong alkaline matter and 5-20 parts by mass of water into a loose porous structure cushion layer;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed;
the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
Specifically, the high-density fiber filter layer is polypropylene fiber, medical mask needle cotton or medical non-woven fabric;
the crystal activated carbon layer is formed by alternately overlapping activated carbon fibers and/or activated carbon cloth;
the ULPA and/or HEPA high-precision filter membranes are alternatively laminated into a sheet in single layers or multiple layers.
The mask is provided with an air suction one-way valve, and an air filter screen can be additionally arranged at the outer opening of the mask; the air filter screen can be replaced for many times.
Furthermore, the mask is provided with an oxygen inhalation port connected with oxygen so as to meet the oxygen inhalation requirement of patients suffering from severe and oxygen deficiency. When oxygen inhalation is not needed, the oxygen inhalation port is only sealed by the sealing cover.
The following provides specific embodiments, which are further described in conjunction with the accompanying drawings.
Referring to fig. 1, the face mask with air filter screen, the face mask 5 has the air intake 2 with unidirectional valve and filter screen, the patient can conveniently inhale fresh and clean air, and the expired air is filtered and sterilized by the exhalation port 1 with unidirectional valve, the virus and germ contained therein are basically killed and attenuated, and can not directly enter the atmosphere; the air filter screen and the filtering and sterilizing layer can be replaced in due time or at regular intervals according to the disease condition and the field condition so as to ensure that the air inhaled by the patient is fresh and clean and the exhaled air is thoroughly sterilized and disinfected. The oxygen interface 3 can determine whether to access oxygen according to the requirement to carry out oxygen therapy.
Referring to fig. 2, the mask without air filter net and the mask 5 with the air inlet 4 with one-way valve can make the patient inhale fresh air conveniently, and the expired air is filtered and sterilized by the air outlet 1 with one-way valve, the virus and germ contained therein are basically killed and attenuated, and will not enter the atmosphere directly. The filtering and sterilizing layer can be replaced at proper time or at regular intervals according to the disease condition and the field condition so as to ensure that the exhaled air is thoroughly sterilized and disinfected. The oxygen interface 3 can determine whether to access oxygen according to the requirement to carry out oxygen therapy. The mask without the air filter screen can reduce part of the use cost. A mask that is completely free of air inhalation devices may partially affect patient comfort.
The mask/respirator based on the above mentioned function of killing bacteria or viruses in exhaled breath mainly adopts a filtering and killing filter element, and the filtering and killing filter element can also be used for mask/respirator with different forms and modes, so the invention also provides a filtering and killing filter element for the mask/respirator, which can kill bacteria or viruses in exhaled breath, and the filtering and killing filter element is arranged in the mask/respirator (the fixing mode of the filtering and killing filter element and the mask/respirator is not limited);
the filter comprises a plurality of protective layers, and at least comprises a filter layer, an adsorption layer and a PP cotton filter element from inside to outside; one or more layers of disinfection and killing cushion layers are arranged between the protective layers;
the disinfection cushion layer contains peroxide and/or oxide and strong alkaline substances.
Further, the filtering, disinfecting and killing filter element at least comprises from inside to outside in sequence:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
eliminating and killing the cushion layer;
an active adsorption layer: a crystalline activated carbon layer is adopted;
0.1 μm filter layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein the disinfection and sterilization cushion layer is a cushion layer with a loose porous structure prepared by mixing 60-85 parts of peroxide and/or oxide, 4-20 parts of strong alkaline substance and 5-20 parts of water;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed; the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
Or, the filtering sterilizing filter element at least comprises from inside to outside in sequence:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
eliminating and killing the cushion layer;
0.1 μm adsorption filtration layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein the disinfection and sterilization cushion layer is a cushion layer with a loose porous structure prepared by mixing 60-85 parts of peroxide and/or oxide, 4-20 parts of strong alkaline substance and 5-20 parts of water;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed; the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
The above example is to fundamentally cut off the way of the patient to discharge viruses and/or germs to the atmosphere through the respiratory tract, reduce and even completely eliminate the pathogenic bacteria and/or viruses in the exhaled air of the patient, and control the pathogen dissemination caused by the exhaled air of the patient to the maximum extent. The patient can conveniently inhale fresh and clean air and/or oxygen, repeated inhalation of germs and/or viruses is avoided, the patient recovery is promoted, the susceptible population is protected, and the comprehensive efficiency is high in the aspect of preventing the viruses and/or the germs from spreading. And the cost is low, and the carrying and the use are convenient.
The invention can reduce the working difficulty of the hospital in the sense control aspect, reduce the pressure of medical care personnel and reduce or reduce more investment which is possibly required by all social parties to control the disease transmission.
The method can play an important role in the aspects of guaranteeing the health of people and avoiding the further or wider diffusion of highly pathogenic and highly infectious diseases.
The embodiments given above are preferable examples for implementing the present invention, and the present invention is not limited to the above-described embodiments. Any non-essential addition and replacement made by the technical characteristics of the technical scheme of the invention by a person skilled in the art belong to the protection scope of the invention.
Claims (10)
1. A face mask/gauze mask capable of killing germ or virus in exhaled breath comprises a shielding surface of the face mask/gauze mask and a binding band connected with the shielding surface, and is characterized in that an exhalation port and an inhalation port are arranged on the shielding surface, and an exhalation one-way valve and a filtering and killing filter element are arranged in the exhalation port; the air suction port is internally provided with an air suction one-way valve;
the filtering and sterilizing filter element comprises a plurality of protective layers and at least comprises a filter layer, an adsorption layer and a PP cotton filter element from inside to outside in sequence; one or more layers of disinfection and killing cushion layers are arranged between the protective layers; the disinfection cushion layer contains peroxide and/or oxide for disinfection and strong alkaline matter.
2. The mask/gauze mask capable of killing germs or viruses in exhaled breath according to claim 1, wherein the exhalation one-way flap is arranged close to the inner port of the exhalation port, and the filter killing filter element is arranged close to the outer port of the exhalation port; a filter screen is arranged between the expiration one-way valve and the filtering and sterilizing filter element, and an openable packaging screen cover is arranged outside the filtering and sterilizing filter element;
the filtering and sterilizing filter element sequentially comprises a 0.3 mu m filter layer, a sterilizing cushion layer, an active adsorption layer, a 0.1 mu m filter layer and a PP cotton filter element from inside to outside.
3. A mask/gauze mask for eliminating pathogens or viruses in exhaled breath according to claim 2, wherein said elimination and disinfection cushion is provided in a plurality of layers in a filtration and disinfection cartridge, respectively placed between layers of a 0.3 μm filter layer, an active adsorption layer, a 0.1 μm filter layer and a PP cotton cartridge.
4. A face mask/gauze mask as claimed in claim 1 or 3, wherein said filter sterilizing filter element comprises, in order from inside to outside:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
a first sacrificial pad layer;
an active adsorption layer: a crystalline activated carbon layer is adopted;
a second sacrificial pad layer;
0.1 μm filter layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein, the first and second killing cushion layers are loose porous structure cushion layers prepared by mixing peroxide and/or oxide and strong alkaline substances.
5. The mask/gauze mask capable of killing germs or viruses in exhaled breath according to claim 4, wherein the first and second killing cushion layers are cushion layers with loose and porous structures prepared by mixing 60-85 parts by mass of peroxide and/or oxide, 4-20 parts by mass of strong alkaline matter and 5-20 parts by mass of water;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed;
the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
6. The face mask/mouth-piece for eliminating germs or viruses in exhaled breath according to claim 4, wherein the high-density fiber filter layer is polypropylene fiber, medical mouth-piece needle cotton or medical non-woven fabric;
the crystal activated carbon layer is formed by alternately overlapping activated carbon fibers and/or activated carbon cloth;
the ULPA and/or HEPA high-precision filter membranes are alternatively laminated into a sheet in single layers or multiple layers.
7. The mask/gauze mask capable of killing germs or viruses in exhaled breath according to claim 1, wherein the air suction port is internally provided with an air suction one-way valve, and the air inlet is also provided with an air filter screen;
the shielding surface is also provided with an oxygen inhalation port.
8. A filtering sterilizing filter element for a face mask/mouth mask capable of sterilizing germs or viruses of exhaled breath is characterized in that the filtering sterilizing filter element is arranged in the face mask/mouth mask and comprises a plurality of protective layers, and at least comprises a filter layer, an adsorption layer and a PP cotton filter element from inside to outside; one or more layers of disinfection and killing cushion layers are arranged between the protective layers;
the disinfection cushion layer contains peroxide and/or oxide and strong alkaline substances.
9. A filter and kill filter for a face mask/mouth mask that kills exhaled breath germs or viruses according to claim 8, wherein said filter and kill filter comprises, in order from the inside to the outside:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
eliminating and killing the cushion layer;
an active adsorption layer: a crystalline activated carbon layer is adopted;
0.1 μm filter layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein the disinfection and sterilization cushion layer is a cushion layer with a loose porous structure prepared by mixing 60-85 parts of peroxide and/or oxide, 4-20 parts of strong alkaline substance and 5-20 parts of water;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed; the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
10. A face mask/gauze mask for killing bacteria or viruses in exhaled breath according to claim 8, wherein said filter and disinfectant filter element comprises, in order from inside to outside:
0.3 μm filter layer: filtering with high density fiber filter layer to obtain particles below 0.3 μm;
eliminating and killing the cushion layer;
0.1 μm adsorption filtration layer: adopting ULPA and/or HEPA high-precision filter membrane;
and a PP cotton filter element;
wherein the disinfection and sterilization cushion layer is a cushion layer with a loose porous structure prepared by mixing 60-85 parts of peroxide and/or oxide, 4-20 parts of strong alkaline substance and 5-20 parts of water;
wherein the peroxide and/or the oxide is calcium peroxide and/or calcium oxide, and the mass ratio of the peroxide and/or the oxide is 0.1-10 when the calcium peroxide and the calcium oxide are mixed; the strong alkali comprises 3-15 parts of sodium hydroxide and 1-5 parts of potassium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010181177.1A CN111227362A (en) | 2020-03-16 | 2020-03-16 | Face mask/mouth mask capable of killing germs or viruses in exhaled breath |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010181177.1A CN111227362A (en) | 2020-03-16 | 2020-03-16 | Face mask/mouth mask capable of killing germs or viruses in exhaled breath |
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| Publication Number | Publication Date |
|---|---|
| CN111227362A true CN111227362A (en) | 2020-06-05 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010181177.1A Pending CN111227362A (en) | 2020-03-16 | 2020-03-16 | Face mask/mouth mask capable of killing germs or viruses in exhaled breath |
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| CN (1) | CN111227362A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111686514A (en) * | 2020-06-19 | 2020-09-22 | 雅弦科技有限公司 | Filter material, preparation method thereof, filter device and fresh air system |
| CN112336902A (en) * | 2020-11-09 | 2021-02-09 | 北京市大兴区中西医结合医院 | Shoulder-carried reusable sterilizer for inhaled gas and exhaled gas for infected patients |
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| US20030111075A1 (en) * | 2001-12-18 | 2003-06-19 | Wen Sheree H. | Antiviral and antibacterial respirator mask |
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Application publication date: 20200605 |