A rhinitis patch

Abstract

The utility model discloses a kind of rhinitis patches, belong to medical nursing instrument technical field;The rhinitis patch includes flexible substrate and drug bearing layer;The flexible substrate is the bionic arc structure that adapts to the outline of children's nose, integrally formed by central support section and two side elastic attachment section, central ventilation cavity is opened in middle part, and patch is equipped in cavity;The drug bearing layer is detachable hydrogel patch, and is pasted to the inner side surface of the patch;Two side elastic attachment section is double-layer composite structure, and sealed chamber is formed in inside, and full-encapsulation arc memory steel sheet is embedded in chamber, and substrate overlock structure is equipped at the edge of elastic attachment section;The utility model realizes nose wide self-adaptive attachment by full-encapsulation memory steel sheet+elastic attachment section, there is no exposed metal component, cooperate with thickened buffer layer and overlock design to prevent scratching risk, central ventilation cavity guarantees smooth breathing, detachable drug layer reduces the discomfort of replacement, applicable to 3-12 years old children, and the stability of attachment is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical and nursing device technology, specifically to a nasal patch. Background Technology

[0002] Childhood rhinitis is a common pediatric disease. Topical nasal patches are widely used due to their convenience and minimal side effects, but current technology has significant drawbacks:

[0003] 1. Poor fit: For example, a nasal medication device for children disclosed in Chinese Patent No. CN213192072U uses a fixed-size drug delivery tube structure, which cannot be adapted to the nasal shape of children aged 3-12 at different developmental stages. It cannot adjust the fitting pressure according to the individual nasal shape, and is prone to problems such as drug leakage or poor fit.

[0004] 2. Problem of obstructed airflow: Traditional nasal patches are mostly full-coverage structures. For example, Chinese patent CN115300542A discloses a preparation for treating rhinitis in children and its preparation method. After the preparation is applied, it blocks the air passage around the nasal cavity. Children are prone to feeling stuffy when wearing it, especially when used at night, which affects the smoothness of breathing.

[0005] 3. Poor comfort during replacement: For example, a nasal patch that is easy to remove is disclosed in Chinese patent CN221534368U. It reduces the pain of tearing through multiple backing layers, but it does not solve the problem of adhesion between the drug layer and the skin. Children's skin is delicate and is still prone to redness and tearing damage.

[0006] 4. Insufficient stability: Most existing nasal patches rely on the adhesive of pressure-sensitive adhesive for fixation. When children move around, the patches are easily displaced due to the pulling of facial muscles, which affects the efficacy of the medication.

[0007] 5. Safety risks and hazards: Some existing technologies attempt to use metal adjustment structures, but the metal parts are not fully encapsulated, and the edges are sharp or easily exposed, posing a risk of scratching children's skin. Children's skin is only 1 / 2 to 2 / 3 the thickness of adults' skin, and their tolerance to metal pressure and sharp edges is even lower, so there is an urgent need to strengthen the safety protection design.

[0008] Based on this situation, a nasal patch is provided, comprising a flexible base and a drug-carrying layer. The flexible base is a biomimetic arc-shaped structure adapted to the contour of a child's nose, integrally formed by a central support section and two elastic fitting sections on both sides, with a central ventilation cavity in the middle, and a patch inside the cavity. The drug-carrying layer is a detachable hydrogel patch, which is adhered to the inner surface of the patch. The two elastic fitting sections on both sides are a double-layer composite structure, forming a sealed chamber inside, with a fully encapsulated arc-shaped memory steel sheet embedded in the chamber, and a base edging structure at the edge of the elastic fitting section. This utility model achieves adaptive fitting of nasal width through a fully encapsulated memory steel sheet + elastic fitting sections, with no exposed metal parts. Combined with a thickened buffer layer and edging design, it eliminates the risk of scratches. The central ventilation cavity ensures smooth breathing, and the detachable drug layer reduces discomfort during replacement. It is suitable for children aged 3-12 years, and the fitting stability is improved. Utility Model Content

[0009] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0010] The nasal patch according to an embodiment of this utility model includes a flexible base and a drug-carrying layer. The flexible base is a biomimetic arc-shaped structure adapted to the contour of a child's nose, integrally formed by a central support section and two elastic fitting sections on both sides. A through-hole central ventilated cavity is opened in the middle of the flexible base, and a patch is placed inside the central ventilated cavity. The drug-carrying layer is a detachable hydrogel patch, which is pasted onto the inner surface of the patch. The two elastic fitting sections on both sides are a double-layer composite structure, forming a sealed chamber inside. A fully encapsulated arc-shaped memory steel sheet is embedded in the chamber. The outside of the memory steel sheet is covered with a thickened silicone buffer layer. The edges of the two elastic fitting sections on both sides are provided with a base edging structure. The deformation of the memory steel sheet achieves adaptive fitting of the nasal width, and there are no exposed metal parts. The flexible base is coated with a medical pressure-sensitive adhesive layer, and the body has uniformly distributed breathable mesh holes.

[0011] The central ventilation cavity has a diameter of 8-12mm, and its inner edge has a rounded transition structure. The cavity wall is covered with breathable non-woven fabric.

[0012] The arc-shaped memory steel sheet has a thickness of 0.1-0.15mm, a width of 3-4mm, and rounded edges; the thickened silicone buffer layer has a thickness of 0.5-0.8mm, a Shore hardness of 15-20A, and completely covers the outer surface of the memory steel sheet.

[0013] The double-layer composite structure of the two elastic bonding sections is sealed by hot pressing. The width of the base edge-wrapping structure is 1-2mm, and it is treated with hot pressing rounded corners, without sharp edges.

[0014] The total thickness of the double-layer composite structure of the elastic bonding sections on both sides is 0.2-0.25mm.

[0015] The thickness of the drug carrier layer is 0.5-1 mm, and the surface of the hydrogel patch has a rounded transition structure.

[0016] The advantages of this utility model compared with the prior art are as follows:

[0017] 1. Enhanced safety performance: The quadruple safety design of fully encapsulated structure + rounded corner steel sheet + thickened buffer layer + edge protection greatly reduces the risk of metal scratches. There are no rigid parts in the skin contact area, which meets the GB / T 30038-2013 children's product safety standard, giving parents greater peace of mind.

[0018] 2. Precise fit and coverage: The 0.1-0.15mm thick memory steel sheet, combined with the elastic fitting section, can achieve a nose width range of 30-50mm, covering the nose shape of children aged 3-12 years, and the fitting stability is improved compared with traditional products;

[0019] 3. Optimized ventilation: The dual ventilation structure of central ventilation + base ventilation mesh improves the air circulation around the nasal cavity when worn, solving the problem of stuffiness and discomfort, and is especially suitable for long-term wear at night;

[0020] 4. Improved comfort: The removable drug-carrying layer and low-allergen medical pressure-sensitive adhesive layer reduce the skin sensitization rate and significantly reduce pain during replacement; the thickened silicone buffer layer further relieves the pressure from the metal and improves wearing comfort.

[0021] 5. Efficacy Guarantee: The drug-carrying layer is precisely positioned through the patch, corresponding to the Yingxiang acupoint on the child's nose. The application pressure can be finely adjusted by the memory steel plate, improving the transdermal absorption efficiency of the drug. The structural design of the elastic application section reduces the impact of facial muscle traction on the stability of the application and prevents displacement during activities. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the nasal patch of this utility model;

[0023] Figure 2 This is a cross-sectional structural diagram of the nasal patch of this utility model;

[0024] Figure 3 This is a schematic diagram of the cooperation between the memory steel sheet and the silicone buffer layer of the nasal patch of this utility model;

[0025] Figure 4 This is a schematic diagram of the drug carrier layer and patch of the nasal patch of this utility model.

[0026] Figure label:

[0027] Rhinitis patches 100;

[0028] Flexible substrate 1; central support section 11; elastic bonding sections on both sides 12; substrate edge wrapping structure 12-a; memory steel sheet 121; silicone buffer layer 122; central ventilated cavity 13; patch 14; medical pressure-sensitive adhesive layer 15;

[0029] Drug carrier layer 2. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Example: Nasal patch 100 according to an embodiment of the present invention, such as Figure 1 As shown, specifically, it includes a flexible substrate 1 and a drug-carrying layer 2.

[0032] The flexible substrate 1 adopts a biomimetic arc-shaped structure adapted to the contour of a child's nose, and is integrally formed by a central support section 11 and two elastic fitting sections 12 on both sides, resulting in a strong overall structure and a natural fit. A central ventilation cavity 13 with a diameter of 8-12mm is opened in the middle of the flexible substrate 1, and the cavity wall is covered with breathable non-woven fabric to ensure ventilation and prevent drug leakage. A patch 14 is provided on the inner side of the flexible substrate 1 for fixing the drug carrier layer 2. The flexible substrate 1 body has uniformly distributed breathable mesh with a pore diameter of 0.8mm, and the outer side is coated with a medical pressure-sensitive adhesive layer 15 to ensure the fixation of the application.

[0033] like Figure 2 As shown, the two elastic bonding sections 12 adopt a double-layer composite structure, which is formed into a sealed cavity by hot pressing to fully encapsulate the memory steel sheet 121 and prevent metal exposure. The total thickness of the double-layer composite structure of the two elastic bonding sections 12 is 0.2-0.25mm, which ensures both deformation adaptability and structural strength. The edges of the two elastic bonding sections 12 are provided with a base edging structure 12-a with a width of 1-2mm. The corners are rounded by hot pressing, and there are no sharp edges, which further seals the cavity and prevents the memory steel sheet 121 from shifting or its edges from being exposed.

[0034] Furthermore, such as Figure 3As shown, the memory steel sheet 121 is completely embedded in the double-layer sealed cavity of the elastic fitting sections 12 on both sides, with no metal parts exposed. The memory steel sheet 121 has a thickness of 0.1-0.15mm, a width of 3-4mm, and rounded edges to avoid sharp edges contacting the skin. The outer side of the memory steel sheet 121 is covered with a 0.5-0.8mm thickened silicone buffer layer 122 with a Shore hardness of 15-20A, which completely covers the outer surface of the steel sheet, providing double isolation between the metal and the skin, while buffering the deformation pressure of the steel sheet and improving wearing comfort.

[0035] like Figure 4 As shown, the removable drug-carrying layer 2 is a removable hydrogel patch, which is attached to the inner surface of the patch 14; the hydrogel patch is 0.5-1mm thick and has a rounded transition structure on the surface to avoid scratching the skin; the drug-carrying system contains magnolia and peppermint extracts, which are mild and non-irritating, and the removable design avoids skin irritation from tearing off the whole patch, thus improving the comfort of replacement.

[0036] When using the nasal patch 100, first clean the child's nose and the skin on both sides of the nostrils to remove oil, sweat, and dust. After the skin is completely dry, apply the patch. Hold the central support section 11 of the flexible base 1 and align the central ventilation cavity 13 with the columella below the tip of the child's nose, so that the drug-carrying layer 2 accurately fits the Yingxiang acupoint area of ​​the nostrils. Gently press the central support section 11 to fix the reference position, and then smooth the elastic fitting sections 12 on both sides to make them naturally fit the outer contour of the nostrils. If the fit is not suitable for the width of the nose, you can gently bend the elastic fitting sections 12 on both sides to adjust the fitting angle through the deformation of the built-in memory steel sheet 121 until it fits the skin completely without wrinkles. After adjustment, the memory steel sheet 121 can maintain the current fitting shape.

[0037] When the drug carrier layer 2 reaches its effective time or becomes dry or sticks to the skin, it needs to be replaced. When replacing, first pinch the base edge structure 12-a of the flexible base 1 and gently peel it off along the tangent of the skin to avoid vertical pulling that could damage the skin. After removing it, pinch the edge of the drug carrier layer 2 and remove the discarded hydrogel patch from the patch 14. After replacing the new drug carrier layer 2, the wearing steps can be repeated. If the adhesiveness of the medical pressure-sensitive adhesive layer 15 decreases, do not reapply adhesive and replace the nasal patch body.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A nasal patch, characterized in that, It includes a flexible base (1) and a drug-carrying layer (2); the flexible base (1) is a biomimetic arc-shaped structure adapted to the contour of a child's nose, integrally formed by a central support section (11) and two elastic adhesive sections (12) on both sides, and a through central air-permeable cavity (13) is provided in the middle of the flexible base (1), and a patch (14) is provided in the central air-permeable cavity; the drug-carrying layer (2) is a detachable hydrogel patch, which is pasted on the inner surface of the patch (14); the two elastic adhesive sections (12) on both sides are double The composite structure forms a sealed chamber inside, in which a fully encapsulated arc-shaped memory steel sheet (121) is embedded. The memory steel sheet (121) is covered with a thickened silicone buffer layer (122) on the outside. The elastic fitting sections (12) on both sides are provided with a base edging structure (12-a). The nose width adaptive fitting is achieved by the deformation of the memory steel sheet (121), and there are no exposed metal parts. The flexible base (1) is coated with a medical pressure-sensitive adhesive layer (15) on the outside, and the body is provided with a uniformly distributed breathable mesh.

2. The nasal patch according to claim 1, characterized in that, The diameter of the central ventilation cavity (13) is 8-12mm, the inner edge is provided with a rounded transition structure, and the cavity wall is covered with breathable non-woven fabric.

3. The nasal patch according to claim 1, characterized in that, The arc-shaped memory steel sheet (121) has a thickness of 0.1-0.15mm, a width of 3-4mm, and rounded edges; the thickened silicone buffer layer (122) has a thickness of 0.5-0.8mm, a Shore hardness of 15-20A, and completely covers the outer surface of the memory steel sheet (121).

4. The nasal patch according to claim 1, characterized in that, The double-layer composite structure of the elastic bonding sections (12) on both sides is sealed by hot pressing. The width of the base edge-wrapping structure (12-a) is 1-2mm, and it is treated with hot pressing rounded corners, without sharp edges.

5. The nasal patch according to claim 1, characterized in that, The total thickness of the double-layer composite structure of the elastic bonding sections (12) on both sides is 0.2-0.25mm.

6. The nasal patch according to claim 1, characterized in that, The thickness of the drug carrier layer (2) is 0.5-1 mm, and the surface of the hydrogel patch has a rounded transition structure.

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