Anti-fog reduced pressure mask

Abstract

The utility model relates to a mask technical field especially prevent fogging and reduce pressure type mask, including main part, and the main part includes blocking part and the fitment, and is provided with hydrocolloid assembly on the fitment, and is provided with release paper on the hydrocolloid assembly, the fitment includes nose bridge area and malar bone area, and the middle part of nose bridge area protrudes upward, and the top of malar bone area protrudes upward, and the top of nose bridge area and the top of malar bone area are recessed. Thus through the water glue body feature, after being filled with the nose bridge curved surface under the pressure, the airtightness can be realized and the effect of preventing fogging is played, and the water glue body feature can be used to disperse the pressure of the mask to the facial skin and eliminate the pressure mark, and compared with the horizontal top, through the nose bridge area and malar bone area and the upward protruding setting, the nose bridge area and malar bone area are more fitted with the nose bridge and malar bone of the user, and the auxiliary sealing effect is played and the airtightness is further ensured.

Description

Technical Field

[0001] This utility model relates to the field of mask technology, and specifically to an anti-fog and pressure-reducing mask. Background Technology

[0002] A face mask is a hygiene and epidemic prevention product, generally worn over the mouth and nose to filter the air entering the mouth and nose, blocking harmful gases, odors, droplets, viruses, and other substances. It is typically made of materials such as gauze or paper. For example, patent number 2020202788119, titled "A Tie-on Face Mask," showcases some features of existing masks. By providing loop holes on both sides of the mask body, the design allows the straps to pass through these holes for wearing. This solves two problems: firstly, the traditional medical mask's non-adjustable ear loops cause excessive pressure on the wearer's face and ears, leading to discomfort; secondly, it addresses the disadvantages of traditional medical masks being loose and not sealing the edges properly. However, while the long, plastic metal nose clip in this patent has good plasticity, it still cannot completely seal the curved surface of the nose bridge. Therefore, exhaled air may overflow, causing condensation and fogging on the lenses of those wearing glasses, resulting in blurred vision. Moreover, the nose clip continuously compresses the bridge of the nose and cheekbone, and at the same time, the tension of the straps is added, which can cause medical staff to develop facial skin marks or even pressure sores after wearing it for a long time. Summary of the Invention

[0003] The purpose of this invention is to provide an anti-fog and pressure-reducing mask. Utilizing the inherent properties of hydrocolloids, it can fill the curved surface of the bridge of the nose under pressure, thus achieving airtightness and preventing fogging. Furthermore, the hydrocolloids disperse pressure, eliminating pressure marks. The upward protrusion of the nose and cheekbone areas allows for a closer fit between the nose and cheekbone areas and the user's nose and cheekbones, thus providing auxiliary sealing and further ensuring airtightness. Therefore, this invention solves the problems of poor airtightness in existing masks, which cause fogging of the eyes and pressure marks or even pressure sores on the facial skin.

[0004] The purpose of this utility model is achieved as follows:

[0005] A fog-proof and pressure-reducing mask includes a main body, which includes a blocking part and a fitting part. A hydrocolloid component is provided on the inner side of the fitting part, and a release paper is provided on the side of the hydrocolloid component away from the fitting part.

[0006] The fitting area includes a nasal bridge area and a cheekbone area, with the middle of the nasal bridge area protruding upwards and the top of the cheekbone area protruding upwards, and a depression between the top of the nasal bridge area and the top of the cheekbone area.

[0007] Preferably, the hydrocolloid assembly includes a backing layer, a colloidal matrix layer, and a medical pressure-sensitive adhesive layer, wherein the colloidal matrix layer is located between the backing layer and the medical pressure-sensitive adhesive layer, the backing layer is connected to the main body, and the medical pressure-sensitive adhesive layer is connected to the release paper.

[0008] Preferably, the backing layer is a polyurethane film, and the thickness of the backing layer is 0.03 mm to 0.05 mm, and the water vapor transmission rate of the backing layer is ≥500 g / m³. 2 / 24h;

[0009] Or / and, the colloidal matrix layer is composed of sodium carboxymethyl cellulose, gelatin and polyisobutylene, and the normal thickness of the colloidal matrix layer is 0.3 mm to 0.5 mm, which expands upon contact with sweat to form a sealing gel.

[0010] Preferably, the width of the bonding portion is 3cm to 4cm, and the length is 5cm to 7cm;

[0011] Or / and, the cheekbone area consists of two parts located on either side of the bridge of the nose;

[0012] Or / and, the bottom of the fitting part is arc-shaped.

[0013] Preferably, the hydrocolloid component and the main body are connected by hot-pressing composite.

[0014] Preferably, ear loops are provided on both sides of the main body, or straps are provided on both sides of the main body.

[0015] Preferably, the main body includes a moisture-proof layer, a filter layer, and a skin-friendly layer, with the filter layer located between the moisture-proof layer and the skin-friendly layer, and the skin-friendly layer of the adhesive portion having a hydrocolloid component disposed on the side away from the filter layer.

[0016] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0017] This invention utilizes a hydrocolloid component to fill the curved surface of the bridge of the nose under pressure, reducing gaps and achieving airtightness and preventing fogging. Furthermore, the hydrocolloid's properties help disperse pressure on the facial skin, eliminating indentations. Compared to a horizontal top design, the upward protrusion in the bridge of the nose and cheekbone areas allows for a closer fit between the nose and cheekbone areas and the user's nose and cheekbones, thus aiding in sealing and further ensuring airtightness. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of this utility model laid flat.

[0020] Figure 3 This is a schematic diagram of the structure for tearing open the release paper.

[0021] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0022] Figure 5 This is a schematic diagram of a structure with ear loops.

[0023] Reference numerals: 1-Main body; 11-Blocking part; 12-Fitting part; 121-Bridge of the nose area; 122-Cheekbone area;

[0024] 13-Moisture-resistant layer; 14-Moisture-resistant layer; 15-Skin-friendly layer; 2-Hydrocolloid component; 21-Backing layer;

[0025] 22-Colloidal matrix layer; 23-Medical pressure-sensitive adhesive layer; 3-Release paper; 4-Ear loop; 5-Strap. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0027] like Figures 1-5 As shown, an anti-fog and pressure-reducing mask includes a main body 1, which includes a blocking part 11 and a fitting part 12. A hydrocolloid assembly 2 is provided on the inner side of the fitting part 12, and a release paper 3 (a release paper is a type of anti-sticking paper that prevents prepreg from sticking and protects the prepreg from contamination) is provided on the side of the hydrocolloid assembly 2 away from the fitting part 12.

[0028] Hydrocolloids are complexes formed by binding water with hydrophilic colloidal substances and have unique physical and chemical properties, namely absorbency and moisturizing (forming a gel after absorbing exudate to keep the wound moist, promote cell proliferation and epithelial migration), breathability and barrier (the surface semi-permeable membrane allows gas exchange but blocks foreign objects), and adhesion and elasticity (containing adhesive materials and elastomers to ensure a close fit to the wound and reduce damage during dressing changes).

[0029] Therefore, in actual use, by setting up the hydrocolloid component 2, the hydrocolloid itself can fill the curved surface of the bridge of the nose and reduce gaps after being subjected to pressure, thereby achieving airtightness and playing a role in preventing fogging. Moreover, the hydrocolloid itself can also be used to disperse the pressure of the mask on the facial skin, thereby eliminating pressure marks.

[0030] Meanwhile, the fitting part 12 includes a nasal bridge area 121 and a cheekbone area 122, with the middle of the nasal bridge area 121 protruding upwards and the top of the cheekbone area 122 protruding upwards, and a depression between the top of the nasal bridge area 121 and the top of the cheekbone area 122. There are two cheekbone areas 122 located on both sides of the nasal bridge area 121.

[0031] Therefore, in actual use, the nose bridge area 121 and cheekbone area 122, as well as the upward protrusion, make the nose bridge area 121 and cheekbone area 122 fit more closely with the user's nose bridge and cheekbone, thereby playing an auxiliary sealing role and further ensuring airtightness.

[0032] Furthermore, to better fit the user's nose bridge and cheekbones, the width of the fitting part 12 can be set to 3cm to 4cm, and the length to 5cm to 7cm. Secondly, to avoid the hydrocolloid component 2 covering too large an area and causing poor breathability underneath, the bottom of the fitting part 12 is set to be curved. Moreover, the curved design is more in line with the face, making it more comfortable to wear.

[0033] Meanwhile, the hydrocolloid component 2 and the main body 1 are connected by hot-pressing composite. Hot-pressing composite is a technology that combines two or more different materials under high temperature and high pressure conditions. Typically, a hot press is used to heat the materials to a certain temperature and then press them to form a strong bond between the different materials.

[0034] like Figure 4 As shown, the hydrocolloid assembly 2 includes a backing layer 21, a colloidal matrix layer 22, and a medical pressure-sensitive adhesive layer 23. The colloidal matrix layer 22 is located between the backing layer 21 and the medical pressure-sensitive adhesive layer 23. The backing layer 21 is connected to the main body 1, and the medical pressure-sensitive adhesive layer 23 is connected to the release paper 3.

[0035] The backing layer 21 is mainly used for connection and has good air permeability, and it also plays a role in inhibiting bacteria. Therefore, the backing layer 21 can be made of polyurethane film. The polyurethane film is an elastomer film made of polyurethane, which combines the elasticity of rubber and the processing performance of plastic and has a good antibacterial effect. At the same time, the thickness of the backing layer 21 is 0.03mm to 0.05mm, and the water vapor transmission rate of the backing layer 21 is ≥500g / m³. 2 / 24h.

[0036] Meanwhile, the colloidal matrix layer 22 is composed of sodium carboxymethyl cellulose, gelatin, and polyisobutylene, and its normal thickness is 0.3 mm to 0.5 mm. It expands upon contact with sweat to form a sealing gel. Sodium carboxymethyl cellulose is a cellulose derivative, belonging to ionic cellulose gum, and has hygroscopic properties. Gelatin is a macromolecular hydrophilic colloid, a product of partial hydrolysis of collagen, and has gelling properties. Polyisobutylene is a saturated linear polymer obtained from isobutylene monomers through cationic polymerization, possessing elasticity and flexibility.

[0037] Furthermore, the medical pressure-sensitive adhesive layer 23 is a special adhesive layer that can achieve adhesion through pressure, and it uses a low-allergenic acrylic adhesive (acrylic adhesive is a type of polymer or copolymer adhesive with acrylic acid, methacrylic acid and their ester derivatives as the main components). Therefore, it can pass the biocompatibility test, reduce skin irritation, and is breathable.

[0038] like Figures 1-5 As shown, the structure between the main body 1 and the user is varied. For example, ear hooks 4 can be provided on both sides of the main body 1, allowing the device to be worn by hanging the ear hooks 4 on the ears. The ear hooks 4 can be made of polyester fiber and welded onto the main body 1. Polyester fiber, also known as polyester, is a synthetic fiber obtained by spinning polyester, which is a polymer formed by the condensation polymerization of organic dicarboxylic acids and diols. It is a high-molecular-weight compound with high strength and good elastic recovery.

[0039] Alternatively, the main body 1 may have straps 5 on both sides, allowing it to be worn by binding with the straps 5. The straps 5 can be made of non-woven fabric. Non-woven fabric is a cloth-like material made by directly bonding fibers through physical or chemical methods, and it is lightweight, soft, breathable, and waterproof.

[0040] like Figures 1-5 As shown, the main body 1 includes a moisture-proof layer 13, a filter layer 14 and a skin-friendly layer 15, with the filter layer 14 located between the moisture-proof layer 13 and the skin-friendly layer 15, and a hydrocolloid assembly 2 is provided on the side of the skin-friendly layer 15 of the adhesive portion 12 away from the filter layer 14.

[0041] Therefore, in actual use, the main body 1 adopts a three-layer composite structure. The first layer is the moisture-resistant layer 13, which can also be called the outer layer. It is made of blue or green polypropylene nonwoven fabric (polypropylene nonwoven fabric is a nonwoven fabric made of polypropylene as raw material through processes such as melt spinning, stretching into a web, hot pressing or chemical bonding) and is hydrophobically treated, so as to block blood, body fluids and secretions splashed during surgery, thereby preventing liquid penetration.

[0042] Meanwhile, the second layer is the filter layer 14, also known as the middle layer. It is made of polypropylene meltblown fabric (a nonwoven filter material made of polypropylene as the main raw material, with unique capillary structure and ultrafine fiber characteristics) that has undergone electret treatment (electret treatment is a technology that enhances the functional properties of a material by increasing the surface or internal charge density, and is widely used in filter materials such as meltblown nonwoven fabric) with a thickness of about 0.3mm to 0.5mm. It undertakes the core filtration function, thereby achieving a bacterial filtration efficiency of ≥95% and a non-oily particulate matter filtration efficiency of ≥30%.

[0043] The third layer is the skin-friendly layer 15, also known as the inner layer, which is made of white polypropylene non-woven fabric. The skin-friendly layer 15 is soft and can directly contact the skin. It is also moisture-wicking and breathable, thus reducing the stuffiness caused by wearing it for a long time.

[0044] In summary, during actual use, the user first removes the release paper 3, then applies the hydrocolloid component 2 to the user's nose bridge and cheekbones, and presses to ensure that the upper edge of the main body 1 fits seamlessly with the face, or in other words, ensures that the upper edge of the hydrocolloid component 2 fits seamlessly with the face. Finally, the ear loops 4 or straps 5 are used to fix the main body 1 to the face. When wearing glasses at this point, even if there is moisture between the main body 1 and the face, the glasses will not fog up, and there will be no pressure marks.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. However, this utility model is not limited to the above embodiments; therefore, various changes and modifications can be made without departing from the principles and scope of this utility model, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A type of anti-fog and pressure-reducing mask, characterized in that, It includes a main body (1), and the main body (1) includes a blocking part (11) and a bonding part (12), and a hydrocolloid assembly (2) is provided inside the bonding part (12), and a release paper (3) is provided on the side of the hydrocolloid assembly (2) away from the bonding part (12); The fitting part (12) includes a nasal bridge area (121) and a cheekbone area (122), with the middle of the nasal bridge area (121) protruding upward and the top of the cheekbone area (122) protruding upward, and a depression between the top of the nasal bridge area (121) and the top of the cheekbone area (122).

2. The anti-fog and pressure-reducing mask according to claim 1, characterized in that: The hydrocolloid assembly (2) includes a backing layer (21), a colloidal matrix layer (22) and a medical pressure-sensitive adhesive layer (23), with the colloidal matrix layer (22) located between the backing layer (21) and the medical pressure-sensitive adhesive layer (23), and the backing layer (21) connected to the main body (1), and the medical pressure-sensitive adhesive layer (23) connected to the release paper (3).

3. The anti-fog and pressure-reducing mask according to claim 2, characterized in that: The backing layer (21) is a polyurethane film, and the thickness of the backing layer (21) is 0.03 mm to 0.05 mm, and the water vapor transmission rate of the backing layer (21) is ≥500 g / m. 2 / 24h; Or / and, the colloidal matrix layer (22) is composed of sodium carboxymethyl cellulose, gelatin and polyisobutylene, and the normal thickness of the colloidal matrix layer (22) is 0.3 mm to 0.5 mm and expands upon contact with sweat to form a sealing gel.

4. The anti-fog and pressure-reducing mask according to claim 1, characterized in that: The width of the bonding part (12) is 3cm to 4cm and the length is 5cm to 7cm; Or / and, the cheekbone area (122) consists of two and is located on both sides of the bridge of the nose area (121); Or / and, the bottom of the fitting part (12) is arc-shaped.

5. A defogging and pressure-reducing mask according to any one of claims 1-4, characterized in that: The hydrocolloid component (2) and the main body (1) are connected by hot-pressing composite.

6. A defogging and pressure-reducing mask according to any one of claims 1-4, characterized in that: The main body (1) is provided with ear loops (4) on both sides, or the main body (1) is provided with straps (5) on both sides.

7. A defogging and pressure-reducing mask according to any one of claims 1-4, characterized in that: The main body (1) includes a moisture-proof layer (13), a filter layer (14) and a skin-friendly layer (15), with the filter layer (14) located between the moisture-proof layer (13) and the skin-friendly layer (15), and a hydrocolloid assembly (2) is provided on the side of the skin-friendly layer (15) of the adhesive part (12) away from the filter layer (14).

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