Medical nasal cavity filtering plug

Abstract

The utility model discloses a medical nasal cavity filtering plug which comprises a first shell, a second shell and a connecting mechanism for connecting the first shell with the second shell, and a first limiting check block, a second limiting check block and filtering cotton are arranged in each shell. The first limiting stop block is arranged in the center of the bottom of the shell and comprises a column structure connected with the bottom of the shell and a cap structure arranged on the top of the column structure. The second limiting stop block is arranged on the inner wall of the shell; an air flow channel is formed in the bottom of the shell, and the filter cotton covers the air flow channel; gaps are reserved between the upper surface of the filter cotton and the first limiting stop block and between the upper surface of the filter cotton and the second limiting stop block. Due to the structural design inside the shell, impedance of the filter cotton cannot be increased during inhalation, the filter cotton and the shell can be separated and opened during exhalation, impedance is reduced, breathing comfort is improved, and pollen, dust, soft flocks, PM2.5, second-hand smoke, formaldehyde, tail gas and other particles in air can be effectively filtered out.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a medical nasal filter plug. Background Art

[0002] The nasal filter plug is an invisible, aesthetically pleasing product for daily use. It removes pollen, dust, dander, PM2.5, secondhand smoke, formaldehyde, exhaust fumes, and other airborne particles through physical interception and adsorption within the filter element. It is placed level with the nostril during use. It can be used by patients with allergic rhinitis and allergic asthma by blocking inhaled insoluble particles and microorganisms from entering the nasal cavity, alleviating symptoms associated with these conditions.

[0003] Existing nasal filter plug structures, such as Figure 1 As shown, the filter material 02 is small in size and is fixed to the housing 01 by a fixed block 03 and a buckle 04. Both inhalation and exhalation require the filter material to pass through the filter material, creating significant resistance during breathing. This can lead to insufficient oxygen intake for the user in a short period of time, causing shortness of breath and symptoms such as dizziness.

[0004] Therefore, there is an urgent need to develop a medical nasal filter plug for reducing respiratory resistance, which will not increase the impedance of the filter cotton during inhalation and can separate the filter cotton from the outer shell during exhalation, thereby reducing impedance and improving breathing comfort. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the present invention aims to provide a medical nasal filter plug. The internal structural design of the housing of the present invention prevents the filter from increasing impedance during inhalation, while allowing the filter to separate from the housing during exhalation, reducing impedance and improving breathing comfort. It also effectively filters out pollen, dust, dander, PM2.5, secondhand smoke, formaldehyde, exhaust gas, and other airborne particles.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] A medical nasal filter plug comprises a first shell, a second shell, and a connecting mechanism connecting the first shell and the second shell, wherein each shell is provided with a first limit block, a second limit block and filter cotton; the first limit block is arranged at the center of the bottom of the shell, comprising a column structure connected to the bottom of the shell and a cap structure arranged on the top of the column structure; the second limit block is arranged on the inner wall of the shell; an air flow channel is provided at the bottom of the shell, and the filter cotton covers the air flow channel; a gap is left between the upper surface of the filter cotton and the first limit block and the second limit block.

[0008] Preferably, the gap between the upper surface of the filter cotton and the first limit block and the second limit block is 0.3-0.5 mm, which is used to provide space for the filter cotton to quickly open for exhaust when exhaling.

[0009] Preferably, the housing, the first limit stop and the second limit stop are integrally injection-molded, thereby reducing the problems of multiple materials and small materials easily falling off during assembly.

[0010] Preferably, a through hole is provided in the center of the filter cotton, and the through hole is sleeved on the column structure.

[0011] Preferably, the filter cotton is PP melt-blown cloth.

[0012] Preferably, the thickness of the filter cotton is 0.25-0.31 mm.

[0013] The working principle of this utility model is as follows:

[0014] Cut the filter cotton into shape according to the plane size of the internal cavity of the shell, and position the filter cotton on the shell through the first limit block. After installation, make sure that the edge of the filter cotton is within the second limit block.

[0015] During use, when the user inhales, the air is filtered through the filter cotton; when the user exhales, internal pressure is generated in the nasal cavity to open the filter cotton, allowing the exhaled gas to flow out quickly from the second limit block, reducing the resistance of the exhaled gas and the moisture carried by the exhaled gas, extending the effective use time of the filter material, and achieving the effect of long-term wearing.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The utility model designs the internal structure of the nasal filter plug shell. When using filter cotton of the same square area, the utility model takes into account the different breathing rhythms of users and designs a structure in which the filter cotton can be opened when exhaling, so that the physical effectiveness of the filter cotton is guaranteed when the user inhales. When exhaling, the gas does not need to pass through the filter cotton, which reduces the water vapor in the exhaled gas remaining in the filter cotton, and reduces the key factor of generating resistance during breathing. The user can ensure the amount of oxygen inhaled and the rapid discharge of waste gas during normal breathing, and perform effective exchange, so that the user can breathe smoothly and avoid symptoms such as dizziness caused by lack of oxygen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of a prior art nasal filter plug;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of a medical nasal filter plug of the utility model;

[0020] Figure 3This is a bottom view of a medical nasal filter plug of the utility model;

[0021] Figure 4 The utility model is a cross-sectional schematic diagram of a medical nasal filter plug. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to specific embodiments.

[0023] See also Figure 2-4 : A medical nasal filter plug, comprising a first shell 1, a second shell 2, and a connecting mechanism 3 connecting the first shell 1 and the second shell 2. Each shell 1, 2 is provided with a first limit block 4, a second limit block 5 and filter cotton 6. The first limit block 4 is arranged at the center of the bottom of the shell 1, 2, and comprises a column structure 41 connected to the bottom of the shell 1, 2 and a cap structure 42 arranged on the top of the column structure 41. The second limit block 5 is arranged on the inner wall of the shell 1, 2. An air flow channel 7 is provided at the bottom of the shell 1, 2. The filter cotton 6 covers the air flow channel 7. There is a gap between the upper surface of the filter cotton 6 and the first limit block 4 and the second limit block 5.

[0024] As a preferred solution of the embodiment, the housings 1 and 2 and the first limit block 4 and the second limit block 5 are integrally injection-molded, thereby reducing the problems of multiple materials and small materials that are easy to fall off during assembly.

[0025] The filter cotton 6 is provided with a through hole in the center, which is sleeved on the column structure 41. The filter cotton 6 is preferably a PP melt-blown cloth with a certain elasticity. The through hole on the filter cotton 6 can be appropriately enlarged to pass through the cap structure 42, thereby sleeved on the column structure 41.

[0026] The filter cotton 6 adopts N95 filter material, such as PP melt-blown cloth, and the thickness of the filter cotton is 0.31mm, which can filter PM2.5.

[0027] Filter cotton 6 uses other filter materials with a thickness of 0.25mm, which can filter pollen and PM10.

[0028] According to the thickness of the filter material, the gap between the upper surface of the filter cotton 6 and the first limit block 4 and the second limit block 5 is 0.3-0.5 mm, which is used to provide space for the filter cotton to quickly open and exhaust when exhaling.

[0029] The working principle of this utility model is as follows:

[0030] Cut the filter cotton into shape according to the plane size of the internal cavity of the shell, and position the filter cotton on the shell through the first limit block. After installation, make sure that the edge of the filter cotton is within the second limit block.

[0031] During use, when the user inhales, the air is filtered through the filter cotton; when the user exhales, internal pressure is generated in the nasal cavity to open the filter cotton, allowing the exhaled gas to flow out quickly from the second limit block, reducing the resistance of the exhaled gas and the moisture carried by the exhaled gas, extending the effective use time of the filter material, and achieving the effect of long-term wearing.

[0032] The above is a detailed introduction to the technical solutions provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A medical nasal filter plug, comprising a first shell, a second shell, and a connecting mechanism connecting the first shell and the second shell, characterized in that: A first limit block, a second limit block and filter cotton are provided in each shell; the first limit block is arranged at the center of the bottom of the shell, including a column structure connected to the bottom of the shell and a cap structure arranged on the top of the column structure; the second limit block is arranged on the inner wall of the shell; an air flow channel is provided at the bottom of the shell, and the filter cotton is covered on the air flow channel; a gap is left between the upper surface of the filter cotton and the first limit block and the second limit block.

2. A medical nasal filter plug according to claim 1, characterized in that: The gaps between the upper surface of the filter cotton and the first limit block and the second limit block are 0.3-0.5 mm.

3. The medical nasal filter plug according to claim 1, characterized in that: The housing, the first limit stopper and the second limit stopper are integrally injection-molded.

4. The medical nasal filter plug according to claim 1, characterized in that: A through hole is provided in the center of the filter cotton, and the through hole is sleeved on the column structure.

5. The medical nasal filter plug according to claim 1, characterized in that: The filter cotton is PP melt-blown cloth.

6. The medical nasal filter plug according to claim 1, characterized in that: The thickness of the filter cotton is 0.25-0.31 mm.

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