CN210276006U - Gauze mask for tuberculosis internal medicine - Google Patents

Abstract

The utility model relates to a mask for tuberculosis internal medicine, which at least comprises a mask body. The two sides of the mask body are provided with adjustable laces for hanging on ears. The mask body comprises an air inlet cavity and an air outlet cavity. The air intake cavity is enclosed by a first one-way breathable cloth that only allows air from the external environment to enter the mouth and nose. The air outlet cavity is surrounded by a second one-way breathable cloth which only allows air to be exhausted from the mouth and the nose to the external environment. The air inlet cavity is sequentially provided with a first filter layer, a first antibacterial layer and a second filter layer along the airflow direction. And a third filter layer, a second antibacterial layer and a fourth filter layer are sequentially arranged in the air outlet cavity along the airflow direction. The utility model can filter and sterilize the air exhaled by the external air and human body sufficiently, and can effectively prevent cross infection and secondary pollution.

Description

Gauze mask for tuberculosis internal medicine

Technical Field

The utility model relates to the field of medical supplies, especially, relate to a gauze mask for tuberculosis internal medicine.

Background

Many large-scale respiratory infectious diseases such as tuberculosis, SARS, highly pathogenic avian influenza, influenza A H1N1 and the like have been outbreaked in the human public health history. The respiratory infectious disease is transmitted by droplets and air, has the characteristics of high transmission speed, wide susceptible population and high morbidity, and poses great threats to public health and social stability. The wearing of the protective mask can block pathogenic microorganisms from invading human body, and is an effective means for preventing respiratory infectious diseases and protecting the health of the public. The data of the world health organization show that China is a tuberculosis high-incidence country next to India in the world, and the number of drug-resistant cases of tubercle bacillus is the first in the world. Tuberculosis patients, family members and medical care personnel are in the environment of droplets and air carrying tuberculosis germs for a long time, and have high risk of causing diseases. The tuberculosis prevention and treatment measures implemented in China at present are tuberculosis restraining strategies based on DOTS strategies, and the core spirit of the tuberculosis prevention measures lies in the prevention of tuberculosis. Therefore, for tuberculosis patients and people contacting the tuberculosis patients around the tuberculosis patients, the biological protective mask can effectively block the spread of tuberculosis pathogeny by wearing the biological protective mask, and public health and safety of the public are ensured.

The biological protective mask is a mask for protecting the respiratory tract of a person in a biological pollution environment and can be divided into a passive biological protective mask and an active antibacterial biological protective mask according to the functions of the mask. The passive biological protective mask is a protective mask commonly used at present, and is mainly used for filtering out physical particles or harmful pathogenic bacteria in air in a physical filtering mode. The active antibacterial biological protective mask is characterized in that a certain antibacterial component is added into a mask material to endow the mask with an active antibacterial function. The filtering efficiency of the biological protective mask to particles can reach 95% -99%, theoretically, the biological protective mask can provide effective protection for people, but pathogenic bacteria which are adsorbed on the passive biological protective mask and have infectivity can be diffused again, and secondary pollution is caused to the environment and people. In order to prevent secondary infection caused by re-diffusion of pathogenic microorganisms attached to the mask, more and more attention is paid to mask materials with an active sterilization function and application thereof, and the mask materials can filter pathogenic bacteria and simultaneously play an active sterilization function.

The key point of the development of the protective mask capable of inhibiting or killing pathogenic microorganisms lies in the filter element material and the antibacterial agent of the mask, the addition of the antibacterial agent on the filter material is a simple and effective method for endowing the mask with an antibacterial function, and most of chemical antibacterial agents have toxic and side effects on human and environment, so that a new generation of masks with an active antibacterial function are yet to be further developed to meet the requirements of biological protection on multifunctional characteristics and the purposes of reliability and safety.

In the development of filter element materials of protective masks, the activated carbon is widely applied. The main component of the active carbon is carbon which is black porous solid carbon, and the specific surface area of the active carbon is 500-1700 m²Has strong adsorption performance per gram. The active carbon is used as an isolation filter material, so that trace toxic gas in the air can be effectively adsorbed, droplet transmission bacteria such as escherichia coli, staphylococcus aureus, pyogenic bacteria, tubercle bacillus and the like can be isolated and removed, and respiratory infectious diseases caused by virus sources can be inhibited from being transmitted. However, the activated carbon used in common masks is mainly physically adsorbed, has limited adsorption capacity, and is likely to cause secondary pollution.

Chinese patent CN202233132U discloses a mask for tuberculosis internal medicine patients, which comprises a mask body, elastic bands, velcro tapes, air inlets and air suction ports, wherein the elastic bands are respectively connected to the left and right sides of the mask body, the velcro tapes are arranged on the elastic bands, the two air inlets are arranged on the outer side of the mask body, and the air suction ports are arranged on the inner side of the mask body. The utility model discloses an only can tentatively keep apart the outside air, do not filter and sterilization effect, and cause cross infection and secondary pollution easily.

For example, chinese patent CN202697795U (published japanese 2013.01.30) discloses a mask, which comprises a mask body 1 and a tightening strap 2, wherein the mask body 1 is connected to the tightening strap 2, the mask body 1 comprises an upper surface layer 3, a lower surface layer 4 and a sandwich layer 5, the upper surface layer, the lower surface layer and the sandwich layer are sewn together, the sandwich layer 5 is located between the upper surface layer 3 and the lower surface layer 4, the sandwich layer 5 is a polyvinyl formal filter, and the upper surface layer 3 and the lower surface layer 4 are a degreased gauze layer or a knitted fabric or a non-woven fabric layer.

Chinese patent CN104519966B (published japanese 2017.05.24) discloses a mask, wherein a mask body (20) is composed of an inner nonwoven fabric sheet (30), a fragrance-containing nonwoven fabric sheet (40), an outer nonwoven fabric sheet (50), and a cover sheet (60). When the mask is worn, the inner nonwoven fabric sheet (30) is disposed on the wearer's side. The fragrance-containing nonwoven fabric sheet (40) contains microcapsules having fragrance. The inner nonwoven fabric sheet (30) is set to have higher air permeability (lower air permeability resistance) than the outer nonwoven fabric sheet (40). This improves the air permeability while improving the trapping property.

Chinese patent CN107744190A (bulletin day 2018.03.02) discloses a detachable mask integrating temperature regulation and air filtration, which comprises a mask outer layer (1), a mask core layer and a mask inner layer in sequence; zippers (2) are arranged on two sides of the mask outer layer (1) or the mask inner layer, the mask core layer comprises a first latticed non-woven fabric layer (3) and a second latticed non-woven fabric layer (4), and air filtering materials are filled in the first latticed non-woven fabric layer (3); the second latticed non-woven fabric layer (4) is filled with heat storage and temperature regulation large capsules or microcapsules; two sides of the mask are connected with ear belt lines (5). The second latticed non-woven fabric layer (4) is a two-layer latticed heat-storage temperature-adjusting fiber woven fabric or non-woven fabric. In order to make a user have more comfortable wearing experience, the heat-storage temperature-regulating capsule is added into the mask, so that the defects of the traditional mask are overcome, the mask has a temperature regulating function, and the cold-resisting and warm-keeping performance and the air permeability of the mask are improved.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model provides a mask for tuberculosis internal medicine, at least comprising a mask body. The two sides of the mask body are provided with adjustable laces for hanging on ears. The mask body comprises an air inlet cavity and an air outlet cavity. The air intake cavity is enclosed by a first one-way breathable cloth that only allows air from the external environment to enter the mouth and nose. The air outlet cavity is surrounded by a second one-way breathable cloth which only allows air to be exhausted from the mouth and the nose to the external environment. The air inlet cavity is sequentially provided with a first filter layer, a first antibacterial layer and a second filter layer along the airflow direction. And a third filter layer, a second antibacterial layer and a fourth filter layer are sequentially arranged in the air outlet cavity along the airflow direction.

According to a preferred embodiment, the first one-way breathable fabric comprises an inner layer, a base layer and an outer layer. The inner layer is a breathable layer. The base layer is provided with a plurality of air holes. And the base layer is provided with a barrier layer. And valves are arranged on the barrier layer corresponding to the air holes. The valve covers the air holes and is larger than the area of the air holes. The valve is rotatably connected to the barrier layer. The outer layer is arranged on the barrier layer and a gap is reserved between the outer layer and the valve.

According to a preferred embodiment, the valve and the barrier layer are manufactured in one piece. The inner layer, the base layer and the barrier layer are sequentially bonded together.

According to a preferred embodiment, the first filter layer comprises a water-repellent non-woven fabric layer, an electrostatic adsorption cotton layer, an activated carbon fiber layer and a hydrophilic non-woven fabric layer which are arranged in sequence along the airflow direction.

According to a preferred embodiment, the third filter layer comprises a hydrophilic non-woven fabric layer, an electrostatic adsorption cotton layer and an activated carbon fiber layer which are arranged in sequence along the airflow direction.

According to a preferred embodiment, the first antibacterial layer and the second antibacterial layer are ceramic antibacterial materials with silver ion doped porous calcium phosphate.

According to a preferred embodiment, the first one-way breathable cloth is provided with a first opening that can be opened and closed in order to replace the first filter layer, the first antibacterial layer and the second filter layer. The second one-way breathable cloth is provided with a second opening which can be opened and closed so as to replace the third filter layer, the second antibacterial layer and the fourth filter layer.

According to a preferred embodiment, the first one-way breathable cloth is provided with an oxygen delivery port for connecting with an oxygen delivery pipe.

According to a preferable embodiment, the first one-way breathable cloth and the second one-way breathable cloth are provided with a bendable nasal sealing tape at one side close to the face for adjusting the mask to be matched with the face.

According to a preferred embodiment, the mask is further provided with an upper band body for being sleeved on one circle of the upper part of the head and a lower band body for being sleeved on one circle of the neck.

The beneficial technical effects of the utility model include following one or more:

the utility model discloses a tuberculosis gauze mask for internal medicine uses one-way ventilative cloth to form the divided chamber of admitting air and goes out the air cavity, sets up filter layer and antibiotic layer in the chamber of admitting air and going out the air cavity, carries out abundant filtration and sterilization to the gas of outside air and human exhalation, can effectively prevent cross infection and secondary pollution.

Drawings

Fig. 1 is a schematic structural view of the mask for tuberculosis internal medicine of the present invention; and

fig. 2 is a schematic structural view of the first unidirectional air-permeable cloth.

List of reference numerals

1: mask body 2: adjustable frenulum 3: first one-way breathable cloth

4: second one-way breathable fabric 5: first opening 6: second opening

7: oxygen delivery port 8: flexible nasal sealing strip 9: upper belt body

10: lower belt body

101: the air intake chamber 102: the air outlet cavity 103: the first filter layer

104: first antibacterial layer 105: second filter layer 106: the third filter layer

107: second antibacterial layer 108: the fourth filter layer

301: inner layer 302: base layer 303: outer layer

304: air holes 305: barrier layer 306: valve with a valve body

307: gap

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

As shown in fig. 1, the mask for tuberculosis internal medicine of the present invention at least comprises a mask body 1. The two sides of the mask body 1 are provided with adjustable laces 2 for hanging on the ears. The mask body 1 comprises an inlet chamber 101 and an outlet chamber 102. The air intake chamber 101 is enclosed by a first one-way breathable cloth 3 which only allows air from the external environment to enter the mouth and nose. The outlet chamber 102 is enclosed by a second one-way breathable cloth 4 which only allows air to escape from the mouth and nose into the external environment. The air inlet cavity 101 is sequentially provided with a first filtering layer 103, a first antibacterial layer 104 and a second filtering layer 105 along the airflow direction. A third filtering layer 106, a second antibacterial layer 107 and a fourth filtering layer 108 are sequentially arranged in the air outlet cavity 102 along the air flow direction.

According to a specific embodiment, the mask body 1 of the mask for tuberculosis internal medicine of the present invention is composed of an air inlet cavity 101 and an air outlet cavity 102. The shape of the air inlet chamber 101 is defined by the first one-way air-permeable cloth 3. The shape of the air outlet cavity 102 is defined by the second one-way breathable cloth 4. Preferably, the inlet chamber 101 and the outlet chamber 102 are the same shape, and the inlet chamber 101 is located above the outlet chamber 102. The inlet chamber 101 and the outlet chamber 102 are separated from each other. Preferably, a bracket, such as a frame made of metal wire, may also be used to fix the shapes of the inlet chamber 101 and the outlet chamber 102. The first one-way air-permeable cloth 3 and the second one-way air-permeable cloth 4 surround the wire frame body to form an air inlet cavity 101 and an air outlet cavity 102, respectively. Certain space is reserved between the mask body 1 and the mouth and the nose, and the comfort degree of a mask wearer is improved. The air inlet cavity 101 is sequentially provided with a first filter layer 103, a first antibacterial layer 104 and a second filter layer 105, so that air sucked from the external environment is sufficiently filtered and sterilized, and infection of mask wearers is prevented. The air outlet cavity 102 is internally provided with a third filtering layer 106, a second antibacterial layer 107 and a fourth filtering layer 108 in sequence, so that the air exhaled by the mask wearer is fully filtered and sterilized, and the diseased mask wearer is prevented from continuously spreading germs. Preferably, the first filter layer 103, the first antibacterial layer 104, the second filter layer 105, the third filter layer 106, the second antibacterial layer 107 and the fourth filter layer 108 are individually replaceable according to use cases.

Preferably, as shown in fig. 2, the first unidirectional air-permeable fabric 3 includes an inner layer 301, a base layer 302 and an outer layer 303. The inner layer 301 is a breathable layer. The base layer 302 is provided with a plurality of air holes 304. 302 is provided with a barrier layer 305. A valve 306 is provided on the barrier layer 305 corresponding to each vent hole 304. The valve 306 covers the vent 304 and has a larger area than the vent 304. The valve 306 is rotatably connected to the barrier 305. Outer layer 303 is disposed on barrier layer 305 with a gap 307 between it and valve 306. Preferably, a convex column is arranged between the outer layer 303 and the barrier layer 305, and a sufficient gap 307 is left between the outer layer 303 and the barrier layer 305 through the convex column, so that the valve 306 can be opened when being ventilated. The first one-way breathable cloth 3 and the second one-way breathable cloth 3 have the same structure, and are oriented differently only when the mask body 1 is arranged.

Preferably, the inner layer 301 can be made of a breathable material, so as to improve the comfort level of contact with a human body, the barrier layer 305 is covered on the base layer 302, the valve 306 of the barrier layer 305 serves as a valve of the breathable hole 304, the valve 306 covers the breathable hole 304 and is larger than the area of the breathable hole 304, so that the valve 306 can only be opened in a single direction, the air in the valve can flow out through the breathable hole 304, and when the reverse airflow is met, the valve 306 is attached to the breathable hole 304 to close the breathable hole 304, so that the really single-direction breathable cloth is realized.

Preferably, the valve 306 and the barrier layer 305 are manufactured in one piece. Inner layer 301, base layer 302, and barrier layer 305 are bonded together in sequence. Thereby improving the reliability of the valve 306 while facilitating rotation of the valve 306 relative to the barrier layer 305 and improving adhesion between the three layers. The working mechanism of the unidirectional breathable cloth is that when gas is to be permeated inside, the valve 306 is pushed open by the internal airflow, and the gas flows out from the inner layer 301 through the breathable holes 304 and the outer layer 303. When air flows in from the outside, the outside air can make the valve 306 cling to the air vent 304, and the air vent 304 is sealed to prevent the outside air from entering. The barrier layer 305 needs to be made of a gas impermeable material such as PE.

Preferably, the first filter layer 103 includes a water-repellent non-woven fabric layer, an electrostatic adsorption cotton, an activated carbon fiber layer, and a hydrophilic non-woven fabric layer, which are sequentially disposed along the airflow direction. The water repellent non-woven fabric layer effectively isolates moisture in the air. The electrostatic adsorption cotton adsorbs micro-microorganism particles in the air. The activated carbon fiber layer further adsorbs particles in the air.

Preferably, the third filter layer 106 includes a hydrophilic non-woven fabric layer, an electrostatic adsorption cotton layer, and an activated carbon fiber layer, which are sequentially disposed in an airflow direction. The hydrophilic non-woven fabric layer adsorbs the exhaled air water vapor. Preferably, the second and fourth filter layers are activated carbon filter layers. The active carbon filter layer can effectively adsorb pollutants such as dust, particles and the like in the air. The active carbon filter layer is made of active carbon particles. The particle size of the activated carbon particles is 50 to 300 microns. The iodine value of the activated carbon raw material is 900-1000 mg/g, and the activated carbon raw material has a dust filtering function. The active carbon has good dust filtering function, and the purification capacity is greatly improved by applying the high-efficiency catalytic active carbon, so that the spreading of tubercle bacillus can be effectively isolated and removed, and the tuberculosis infection caused by virus sources can be inhibited.

Preferably, the first antibacterial layer 104 and the second antibacterial layer 107 are porous calcium phosphate ceramic antibacterial material with silver ion doping. The material can effectively kill pathogenic bacteria. The porous calcium phosphate ceramic particles have calcium phosphate polycrystals with irregular shapes and diameters of 500-2000 microns, wherein the doping content of silver ions is 1-3%, and the porous calcium phosphate ceramic particles have an active sterilization function, can ensure that the mask plays an active sterilization function while filtering germs, and avoid secondary pollution of the mask.

Preferably, the first one-way ventilation cloth 3 is provided with a first opening 5 that can be opened and closed to replace the first filter layer 103, the first antibiotic layer 104 and the second filter layer 105. Second one-way breathable cloth 4 is provided with second opening 6 that can be opened and closed to replace third filter layer 106, second antibacterial layer 107 and fourth filter layer 108. According to a particular embodiment, the first opening 5 and the second opening 6 take the form of zippers. The first opening 5 and the second opening 6 may be provided on the side or end surface of the mask body 1.

Preferably, the first one-way air-permeable cloth 3 is provided with an oxygen inlet 7 for connecting with an oxygen tube. The patient who needs oxygen therapy is convenient to connect the oxygen therapy pipe for oxygen therapy.

Preferably, the first one-way breathable cloth 3 and the second one-way breathable cloth 4 are provided with a bendable nasal sealing tape 8 for adjusting the mask to be matched with the face. Through setting up flexible nose sealing strip 8, improve gauze mask and facial laminating degree, guaranteed the identical tightness of gauze mask and face, improved the gas tightness, reinforcing gauze mask safeguard function.

Preferably, the mask is further provided with an upper band body 9 for being sleeved on one circle of the upper part of the head and a lower band body 10 for being sleeved on one circle of the neck. Through setting up the upper band body 9 and taking the body 10 down, be convenient for according to actual need with the fixed gauze mask body 1 of multiple mode, also can cooperate the more firm fixed gauze mask of adjustable frenulum 2.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. A mask for tuberculosis internal medicine, at least comprising a mask body (1), wherein two sides of the mask body are provided with adjustable laces (2) for being hung on ears,

the mask body (1) comprises an air inlet cavity (101) and an air outlet cavity (102),

the air inlet cavity (101) is surrounded by a first one-way breathable cloth (3) which only allows air to enter the mouth and the nose from the external environment,

the air outlet cavity (102) is surrounded by a second one-way breathable cloth (4) which only allows air to be exhausted from the mouth and the nose to the external environment,

a first filter layer (103), a first antibacterial layer (104) and a second filter layer (105) are sequentially arranged in the air inlet cavity (101) along the airflow direction,

and a third filter layer (106), a second antibacterial layer (107) and a fourth filter layer (108) are sequentially arranged in the air outlet cavity (102) along the airflow direction.

2. The mask for tuberculosis internal medicine according to claim 1, wherein the first one-way breathable cloth (3) comprises an inner layer (301), a base layer (302) and an outer layer (303), the inner layer (301) is a breathable layer, a plurality of breathable holes (304) are formed in the base layer (302), a barrier layer (305) is arranged on the base layer (302), a valve (306) is arranged on the barrier layer (305) corresponding to each breathable hole (304), the valve (306) covers the breathable holes (304) and is larger than the area of the breathable holes (304), the valve (306) is rotatably connected with the barrier layer (305), and the outer layer (303) is arranged on the barrier layer (305) and has a gap (307) with the valve (306).

3. Mask according to claim 2, characterized in that said valve (306) and said barrier layer (305) are made in one piece, said inner layer (301), base layer (302) and barrier layer (305) being bonded together in sequence.

4. The mask for tuberculosis internal medicine according to claim 1, wherein the first filter layer (103) comprises a water-repellent non-woven fabric layer, electrostatic adsorption cotton and an activated carbon fiber layer which are sequentially arranged along an air flow direction.

5. The mask for tuberculosis internal medicine according to claim 1, wherein the third filter layer (106) includes a hydrophilic non-woven fabric layer, an electrostatic adsorption cotton layer and an activated carbon fiber layer which are sequentially arranged along an air flow direction.

6. The mask for tuberculosis internal medicine according to claim 1, wherein the first antibacterial layer (104) and the second antibacterial layer (107) are made of a ceramic antibacterial material with silver ion doped porous calcium phosphate.

7. The mask for tuberculosis internal medicine of claim 2, wherein,

the first one-way breathable cloth (3) is provided with a first opening (5) which can be opened and closed so as to replace the first filter layer (103), the first antibacterial layer (104) and the second filter layer (105),

the second one-way breathable cloth (4) is provided with a second opening (6) which can be opened and closed so as to replace the third filter layer (106), the second antibacterial layer (107) and the fourth filter layer (108).

8. The mask for tuberculosis internal medicine according to claim 7, wherein the first one-way breathable cloth (3) is provided with an oxygen delivery port (7) for connecting with an oxygen delivery tube.

9. Mask for tuberculosis internal medicine according to claim 8, characterized in that the first one-way breathable cloth (3) and the second one-way breathable cloth (4) are provided with a bendable nasal sealing tape (8) on the side close to the face for adjusting the mask to fit the face.

10. The mask for tuberculosis internal medicine according to claim 9, further comprising an upper band (9) for fitting around the head and a lower band (10) for fitting around the neck.

Images