CN111558184A - Protective nasal plug and preparation method thereof - Google Patents
Protective nasal plug and preparation method thereof Download PDFInfo
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- CN111558184A CN111558184A CN202010525705.0A CN202010525705A CN111558184A CN 111558184 A CN111558184 A CN 111558184A CN 202010525705 A CN202010525705 A CN 202010525705A CN 111558184 A CN111558184 A CN 111558184A
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- nasal plug
- pdms
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- nasal
- plug
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/06—Nose filters
Abstract
A protective nasal plug and a preparation method thereof belong to the technical field of medical and health products. The invention aims to solve the problems that the existing mask can not actively adsorb viruses and dust particles, and the preparation device and the process are complex, and the protective nasal plug is made of porous PDMS materials. Uniformly pouring the cane sugar into a nasal obstruction mould to reach a cane sugar height line, and then compacting and leveling; pouring the prepared PDMS into a mould, wherein the highest liquid level of the PDMS cannot be higher than the lowest position of sucrose; curing the mold with the contents therein; and taking out the solidified nasal plug from the mold, putting the nasal plug into boiled water or directly heating the nasal plug to enable the sucrose in the nasal plug to flow out of the nasal plug to form a porous structure, finally cleaning the nasal plug with clean water and drying the nasal plug with compressed air. The preparation method is simple and easy to operate, can be prepared by families, and can also be produced in an industrial large scale. The filter core made of PDMS material can be repeatedly cleaned and reused, so that the cost is saved. The nasal plug cover is tightly attached to the nose of a human body and only covers the nose, and the whole face cannot be covered.
Description
Technical Field
The invention belongs to the technical field of medical and health products, and particularly relates to a protective nasal plug and a preparation method thereof, which can be used for preventing viruses, anti-pollution particles, haze and the like.
Background
The mask is a sanitary article, generally refers to a device which is worn at the mouth and nose part and used for filtering air entering the mouth and nose so as to prevent harmful gas, smell and spray from entering and exiting the mouth and nose of a wearer, and is made of gauze or paper and the like. The mask has a certain filtering function on air entering the lung, and has a protection and prevention function when the mask is worn for operation in an environment polluted by dust and the like when respiratory infectious diseases are epidemic.
However, most of the existing various types of masks for preventing viruses, haze and the like are composed of several layers of fabrics, for example, a plurality of layers of gauze or non-woven fabrics and fused fabrics are sewn to form a filter material, graphene, active carbon and the like are mixed in the middle of the filter material, the filter material is formed into a sheet shape, and the mouth and the nose are covered by the filter material. The masks are passive filtering masks, do not have active adsorption effect on viruses and dust particles, can be prepared and produced by complex industrial equipment and processes, and are difficult to be made by families and individuals.
Disclosure of Invention
The invention aims to solve the problems that the existing mask cannot actively adsorb viruses and dust particles and a preparation device and a process are complex, and provides a preparation method for protecting nasal obstruction.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a protective nasal prong made of a porous PDMS material.
A preparation method of the protective nasal plug comprises the following steps:
the method comprises the following steps: uniformly pouring the cane sugar into a nasal obstruction mould to reach a cane sugar height line, and then compacting and leveling;
step two: pouring the prepared PDMS into a mould, wherein the highest liquid level of the PDMS cannot be higher than the lowest position of sucrose;
step three: curing the mold with the contents therein;
step four: and taking out the solidified nasal plug from the mold, putting the nasal plug into boiled water or directly heating the nasal plug to enable the sucrose in the nasal plug to flow out of the nasal plug to form a porous structure, finally cleaning the nasal plug with clean water and drying the nasal plug with compressed air.
Compared with the prior art, the invention has the beneficial effects that:
(1) the preparation method is simple and easy to operate, can be self-made by families, can also be produced in large scale in industry, and is used for family and personal emergency protection.
(2) Compared with the traditional mask for filtering particulate matters and virus molecules, the porous structure of the PDMS filter core of the home-made nasal plug can passively filter large-particle dust, can actively adsorb virus molecules through the characteristic that biological macromolecules such as DNA, protein and the like are nonspecifically adsorbed by PDMS materials, has double protection functions of active adsorption and passive filtration, can effectively prevent viruses and pollutants, and has a better protection effect.
(3) The filter core made of PDMS material can be repeatedly cleaned and reused, so that the cost is saved. The nasal plug cover can closely fit the nose of a human body, is small in size, only covers the nose, cannot cover the whole face and is comfortable to wear.
Drawings
FIG. 1 is a schematic view of a nasal plug fitted to the shape of a human nose;
fig. 2 is a schematic view of the nasal prong of the present invention;
fig. 3 is a schematic perspective view of the nasal prong shown in fig. 1;
fig. 4 is a schematic flow chart of the manufacturing process of the nasal plug of the present invention;
fig. 5 is a schematic view of the nasal prong of the present invention incorporating a carrier sheet;
fig. 6 is a schematic view of the nasal prong of the present invention.
Detailed Description
The technical solution of the present invention is further described below with reference to the drawings and the embodiments, but the present invention is not limited thereto, and modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit of the technical solution of the present invention, and the technical solution of the present invention is covered by the protection scope of the present invention.
The principle of the invention is as follows: as shown in fig. 2, the nasal plug is mainly composed of a PDMS material, the surface of which is highly hydrophobic and porous, and thus has strong nonspecific adsorption to biological macromolecules such as DNA and protein, and the virus molecules are composed of internal nucleic acids encapsulated by protein, and thus the PDMS material has nonspecific adsorption to viruses. The PDMS material is poured into the mold filled with the sucrose, and the poured nasal plug is put into hot water to melt the sucrose in the nasal plug, so that a porous structure for adsorbing pollutants is formed in the nasal plug, and the nasal plug can actively adsorb virus molecules and passively filter large-particle dust. The nasal plug mainly utilizes the nonspecific strong adsorption force of PDMS to virus protein molecules, plays a role in preventing viruses and pollutants from being inhaled into a human body, can be repeatedly cleaned for multiple times and reused, and saves the cost.
The first embodiment is as follows: this embodiment describes a protective nasal prong made of a porous PDMS material, as shown in fig. 6.
The second embodiment is as follows: a method for preparing the protective nasal plug according to the first embodiment, as shown in fig. 4, comprises the following steps:
the method comprises the following steps: uniformly pouring the cane sugar into a nasal obstruction mould to reach a cane sugar height line, and then compacting and leveling; specifically, the structure of the nasal plug mold can be designed by referring to the earplug mold, uniform limitation is not required, and only the shape of the prepared nasal plug can plug the nostril is ensured; the height of the sucrose height line does not need to be uniformly limited, and can be properly adjusted according to the length of the nasal plug inserted into the nostril;
step two: pouring the prepared PDMS into a mould, wherein the highest liquid level of the PDMS cannot be higher than the lowest position of sucrose; in the step, the highest liquid level of PDMS is limited to be not higher than the lowest position of sucrose, if the highest liquid level of PDMS is higher than the lowest position of the sucrose, a part of PDMS possibly fails to form a porous structure after the sucrose flows out, and the air can not be ensured to be well circulated; PDMS is liquid, and after the sucrose in the mould is compacted, PDMS can be poured into the mould to permeate into the mould from a sucrose gap, so that the layering phenomenon cannot be caused due to different densities.
Step three: putting the mould together with the substance in the mould into a dry and warm place for solidification;
step four: and taking out the solidified nasal plug from the mold, putting the nasal plug into boiled water or directly heating the nasal plug to enable the sucrose in the nasal plug to flow out of the nasal plug to form a porous structure, finally cleaning the nasal plug with clean water and drying the nasal plug with compressed air.
The third concrete implementation mode: in the second step of the preparation method for protecting a nasal plug according to the second embodiment, the prepared PDMS is a PDMS glue solution and a curing agent according to the ratio of 10: 1 is poured into a container and evenly stirred to obtain the product.
The fourth concrete implementation mode: in the second specific embodiment, the curing is performed in an oven at 80 ℃ for 2 hours in the third step.
The fifth concrete implementation mode: in the second specific embodiment, in the third step, the curing temperature is 60 to 120 ℃, and the curing is performed until the outer surface of the PDMS has a non-stick object with a certain hardness.
The sixth specific implementation mode: in the second specific embodiment, in the fourth step, the temperature for directly heating is 100 to 160 ℃, and the temperature is the temperature for melting and flowing out of sucrose.
The seventh embodiment: in the method for manufacturing the protective nasal plug according to any one of the second to sixth embodiments, the manufactured protective nasal plug can be used in combination with a carrier sheet or a nasal plug cover. The bearing sheet is made of a sheet material and has air permeability, the protective nose plug is bonded with the bearing sheet, then two rope threading holes are formed in the bearing sheet, a wearing rope penetrates through the rope threading holes, and the bearing sheet is sleeved on the head, and the structure is shown in figure 5. The nose plug cover can be designed according to the shape of the nose of a human body and has air permeability, then the nose plug cover is bonded with the protective nose plug, then two rope threading holes are arranged on the nose plug cover, a wearing rope penetrates into the rope threading holes, and the nose plug cover is sleeved on the head, as shown in figures 1 and 3.
Example 1:
as shown in fig. 1 and 3, the protective nasal plug comprises a nasal plug cover 1, two PDMS filter cores 2, a stringing hole 3 and two wearing ropes 4; the nose plug cover is in a shape of a three-dimensional triangle fitting the nose; the two PDMS filter cores are respectively positioned at two sides of the lower part of the nose plug cover; the rope threading holes are symmetrically distributed at the left edge and the right edge of the nose plug cover; the upper wearing rope is fixed in the two rope passing holes in the upper part of the nasal plug cover, and the lower wearing rope is fixed in the two rope passing holes in the lower part of the nasal plug cover. The using method comprises the following steps: the nasal obstruction cover is worn on the nose, the two PDMS filter cores are respectively inserted into the left nostril and the right nostril, the upper wearing rope is sleeved on the upper part of the head, and the lower wearing rope is sleeved on the lower end of the head or the neck. The nasal plug is made of PDMS porous material, and is made of porous structure by sucrose ablation.
Claims (7)
1. A protective nasal plug is characterized in that: the protective nasal plug is made of porous PDMS material.
2. A method for preparing the protective nasal plug of claim 1, wherein the method comprises the following steps: the method comprises the following steps:
the method comprises the following steps: uniformly pouring the cane sugar into a nasal obstruction mould to reach a cane sugar height line, and then compacting and leveling;
step two: pouring the prepared PDMS into a mould, wherein the highest liquid level of the PDMS cannot be higher than the lowest position of sucrose;
step three: curing the mold with the contents therein;
step four: and taking out the solidified nasal plug from the mold, putting the nasal plug into boiled water or directly heating the nasal plug to enable the sucrose in the nasal plug to flow out of the nasal plug to form a porous structure, finally cleaning the nasal plug with clean water and drying the nasal plug with compressed air.
3. The method for preparing a protective nasal plug according to claim 2, wherein the method comprises the following steps: in the second step, the prepared PDMS is prepared by mixing PDMS glue solution and a curing agent according to the ratio of 10: 1 is poured into a container and evenly stirred to obtain the product.
4. The method for preparing a protective nasal plug according to claim 2, wherein the method comprises the following steps: in the third step, the curing temperature is 80 ℃ and the curing time is 2 hours.
5. The method for preparing a protective nasal plug according to claim 2, wherein the method comprises the following steps: in the third step, the curing temperature is 60-120 ℃.
6. The method for preparing a protective nasal plug according to claim 2, wherein the method comprises the following steps: in the fourth step, the temperature of the direct heating is 100-160 ℃.
7. The method for preparing a protective nasal plug according to any one of claims 2 to 6, wherein the method comprises the following steps: the prepared protective nasal plug can be matched with a bearing sheet or a nasal plug cover for use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010525705.0A CN111558184A (en) | 2020-06-10 | 2020-06-10 | Protective nasal plug and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010525705.0A CN111558184A (en) | 2020-06-10 | 2020-06-10 | Protective nasal plug and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111558184A true CN111558184A (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010525705.0A Pending CN111558184A (en) | 2020-06-10 | 2020-06-10 | Protective nasal plug and preparation method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2083939U (en) * | 1991-03-13 | 1991-09-04 | 魏勤学 | Mini nose filter |
| CN101287515A (en) * | 2005-03-21 | 2008-10-15 | 布雷斯普雷保健公司 | Internal nasal dilator filter |
| CN104055247A (en) * | 2014-07-07 | 2014-09-24 | 武汉科宇唯尔复合材料有限公司 | High-breathability sub-nanometer filter filtration membrane mask capable of preventing PM2.5, haze, viruses and germs |
| CN106345084A (en) * | 2016-09-19 | 2017-01-25 | 乐山市同源科技有限公司 | Anti-haze nasal mask completely isolating inspiration and expiration |
| WO2018087732A1 (en) * | 2016-11-14 | 2018-05-17 | Nanoclean Global Pvt Ltd | Nanofiber based nasal filter and a process of preparation thereof |
| CN108735521A (en) * | 2018-04-25 | 2018-11-02 | 北京大学 | Micro super capacitor based on conductive elastomer and its manufacturing method |
| CN109306073A (en) * | 2017-07-26 | 2019-02-05 | 韩昱苏 | Hydrophobic three-dimensional porous material and its preparation method and application and blood storage bag |
| CN109603025A (en) * | 2018-12-12 | 2019-04-12 | 清华大学 | A kind of respiration filtering device and preparation method thereof |
-
2020
- 2020-06-10 CN CN202010525705.0A patent/CN111558184A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2083939U (en) * | 1991-03-13 | 1991-09-04 | 魏勤学 | Mini nose filter |
| CN101287515A (en) * | 2005-03-21 | 2008-10-15 | 布雷斯普雷保健公司 | Internal nasal dilator filter |
| CN104055247A (en) * | 2014-07-07 | 2014-09-24 | 武汉科宇唯尔复合材料有限公司 | High-breathability sub-nanometer filter filtration membrane mask capable of preventing PM2.5, haze, viruses and germs |
| CN106345084A (en) * | 2016-09-19 | 2017-01-25 | 乐山市同源科技有限公司 | Anti-haze nasal mask completely isolating inspiration and expiration |
| WO2018087732A1 (en) * | 2016-11-14 | 2018-05-17 | Nanoclean Global Pvt Ltd | Nanofiber based nasal filter and a process of preparation thereof |
| CN109306073A (en) * | 2017-07-26 | 2019-02-05 | 韩昱苏 | Hydrophobic three-dimensional porous material and its preparation method and application and blood storage bag |
| CN108735521A (en) * | 2018-04-25 | 2018-11-02 | 北京大学 | Micro super capacitor based on conductive elastomer and its manufacturing method |
| CN109603025A (en) * | 2018-12-12 | 2019-04-12 | 清华大学 | A kind of respiration filtering device and preparation method thereof |
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