Nano cellulose aerogel band-aid

Abstract

The utility model discloses a nanocellulose aerogel band-aid, which is of a similar T-shaped structure and comprises a band-aid main body and a sticking part, the sticking part is perpendicular to the band-aid main body along one end of the band-aid main body; the band-aid body sequentially comprises a TPU release film, a medicine layer, a sponge layer, a medical pressure-sensitive adhesive layer and an elastic non-woven fabric layer from inside to outside. The band-aid body further comprises nano-crystalline cellulose aerogel layers which are arranged on the sponge layer and located on the two sides of the medicine layer. According to the utility model, the structure is reasonable, the T-shaped structure is adopted, and the holes for the fingers to pass through are formed, so that the pressure of the fingers can be reduced, the fingers can move conveniently, a sticking part is reduced, and meanwhile, firm sticking can be ensured; the nano cellulose aerogel layer is arranged, and the layer has good biocompatibility, can be in direct contact with a wound and cannot be adhered to the wound.

Description

Technical Field

[0001] The utility model relates to the field of medical protective products, in particular to a nano-cellulose aerogel band-aid. Background Art

[0002] Band-Aid is a medical product used to protect minor injuries. Its main function is to cover the wound and prevent bacterial infection and dirt from entering the wound. Band-Aid has become an indispensable medical product in people's lives because of its small size, convenient use and easy portability.

[0003] In daily life, if Band-Aids are used for too long, the following problems may occur. First, the outer layer of the Band-Aid is not breathable, which will cause the wound and the skin around the wound to become soft and white, which may easily cause wound infection. Second, the absorbent pad of the Band-Aid is easy to adhere to the wound, causing secondary damage to the wound. Third, for wounds on fingers, ordinary Band-Aids can easily cause poor blood circulation in the fingertips and make it inconvenient to move. Utility Model Content

[0004] In view of the above-mentioned technical deficiencies, the purpose of the utility model is to provide a nanocellulose aerogel bandage. The nanocellulose aerogel has biocompatibility and can directly contact the wound without adhering to the wound. In addition, the nanocellulose aerogel has good air permeability, which can solve the problem of wound permeability. Adding Panax notoginseng powder and mugwort powder to the nanocellulose aerogel can effectively absorb the liquid in the wound and promote wound healing. In terms of the structure of the bandage, a T-shaped structure is adopted, and a hole is opened in the adhesive part, which reduces the adhesive part and tries to ensure the comfort of the skin around the wound, while also meeting the demand for firm adhesion.

[0005] The technical solution of the utility model is as follows:

[0006] A nanocellulose aerogel bandage is a "T"-shaped structure, comprising a bandage body and an adhesive portion; the adhesive portion is arranged perpendicular to the bandage body along one end of the bandage body;

[0007] The main body of the bandage comprises, from the inside to the outside, a TPU release film, a drug layer, a sponge layer, a medical pressure-sensitive adhesive layer, and an elastic non-woven fabric layer;

[0008] The bandage body further comprises a nanocellulose aerogel layer, which is arranged on the sponge layer and located on both sides of the drug layer;

[0009] The end of the bandage body where the adhesive portion is not provided, the pressure-sensitive adhesive layer and the elastic non-woven fabric layer extend outward to form an extension portion, and a hole is provided in the middle of the extension portion for passing a finger;

[0010] Preferably, the size of the sponge layer is larger than the overall size of the drug layer and the nanocellulose aerogel layer.

[0011] Preferably, the thickness of the nanocellulose aerogel and the drug layer are both 0.2-0.35 cm, and the size is 0.6 cm×2.5 cm.

[0012] Preferably, the size of the sponge layer is 2.5 cm×3 cm and the thickness is 0.2 cm.

[0013] Preferably, the main body size of the nanocellulose aerogel bandage is 5 cm×3.5 cm.

[0014] Beneficial effects:

[0015] 1. The utility model has a reasonable structure, adopts a T-shaped structure, and is provided with holes for passing fingers, which can reduce finger pressure, facilitate finger movement, reduce the sticking part, and ensure firm sticking;

[0016] 2. The utility model is provided with a nanocellulose aerogel layer, which has good biocompatibility and can directly contact the wound without adhering to the wound. In addition, the nanocellulose aerogel has many pores and good air permeability, and can effectively absorb the liquid around the wound. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the longitudinal cross-section structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] In the figure: 1. TPU release film; 2. Nanocellulose aerogel layer; 3. Drug layer; 4. Sponge layer; 5. Medical pressure-sensitive adhesive layer; 6. Elastic non-woven fabric layer; 7. Adhesive part; 8. Holes. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings to clearly and completely describe the concept and specific structure of the utility model, so as to fully understand the purpose, characteristics and effects of the utility model. The specific embodiments are only used to further explain the utility model in detail and do not limit the protection scope of the claims of this application.

[0021] like Figure 1 , 2 As shown, the nanocellulose aerogel bandage of the utility model is a "T"-shaped structure, including a bandage body and an adhesive portion 7; the adhesive portion 7 is arranged vertically with the bandage body along one end of the bandage body;

[0022] The main body of the bandage comprises, from the inside to the outside, a TPU release film 1, a drug layer 3, a sponge layer 4, a medical pressure-sensitive adhesive layer 5, and an elastic non-woven fabric layer 6;

[0023] The bandage body further comprises a nanocellulose aerogel layer 2, which is disposed on the sponge layer 3 and located on both sides of the drug layer 3;

[0024] The TPU release film is used for protection to prevent the nanocellulose aerogel from being contaminated. The drug layer can be made of nanocellulose aerogel with Panax notoginseng powder and wormwood powder. Panax notoginseng powder has a hemostatic effect. The external use of wormwood powder and Panax notoginseng powder can promote blood circulation, remove blood stasis, reduce swelling and relieve pain. Nanocellulose aerogel has a high porosity and can efficiently absorb the liquid secreted by the wound. Nanocellulose aerogel is biocompatible and can directly contact the wound without adhering to the wound. Adding nanocellulose aerogel on both sides of the drug layer can play an auxiliary role. When the middle drug layer cannot absorb the liquid, the nanocellulose aerogel on both sides can continue to absorb the liquid around the wound to keep the wound dry and breathable. Medical pressure-sensitive adhesive is non-toxic and non-irritating to the skin and will not cause skin allergies. Elastic non-woven fabric can better fit the wound and will not restrict movement.

[0025] At one end of the bandage body where the adhesive portion 7 is not provided, the pressure-sensitive adhesive layer 5 and the elastic non-woven fabric layer 6 extend outward to form an extension portion, and a hole 8 is provided in the middle of the extension portion for passing a finger;

[0026] The size of the sponge layer 4 is larger than the overall size of the drug layer 3 and the nanocellulose aerogel layer 2 .

[0027] The thickness of the nanocellulose aerogel and the drug layer is 0.2-0.35 cm, and the size is 0.6 cm×2.5 cm. The size of the sponge layer 4 is 2.5 cm×3 cm, and the thickness is 0.2 cm. The size of the main body of the nanocellulose aerogel bandage is 5 cm×3.5 cm.

[0028] When using, remove the TPU release film on the surface, turn the Band-Aid vertically, stick the drug layer of the Band-Aid on the wound, stick the adhesive parts of the Band-Aid at both ends on the fingers, pass the fingers through the holes on the Band-Aid, and stick the Band-Aid along the line.

[0029] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A nanocellulose aerogel bandage, characterized in that: The nanocellulose aerogel bandage is of a "T"-shaped structure as a whole, comprising a bandage body and an adhesive portion (7); the adhesive portion (7) is arranged perpendicular to the bandage body along one end of the bandage body; The main body of the bandage comprises, from the inside to the outside, a TPU release film (1), a drug layer (3), a sponge layer (4), a medical pressure-sensitive adhesive layer (5), and an elastic non-woven fabric layer (6); The bandage body further comprises a nanocellulose aerogel layer (2), wherein the nanocellulose aerogel layer (2) is arranged on the sponge layer (4) and located on both sides of the drug layer (3); The adhesive portion (7) is not provided at one end of the bandage body, and the pressure-sensitive adhesive layer (5) and the elastic non-woven fabric layer (6) extend outwards to form an extension portion, with a hole (8) provided in the middle of the extension portion for passing a finger.

2. A nanocellulose aerogel bandage according to claim 1, characterized in that: The size of the sponge layer (4) is larger than the overall size of the drug layer (3) and the nanocellulose aerogel layer (2).

3. The nanocellulose aerogel bandage according to claim 1, characterized in that: The thickness of the nanocellulose aerogel and the drug layer are both 0.2-0.35 cm, and the size is 0.6 cm×2.5 cm.

4. The nanocellulose aerogel bandage according to claim 1, characterized in that: The size of the sponge layer (4) is 2.5 cm×3 cm, and the thickness is 0.2 cm.

5. The nanocellulose aerogel bandage according to claim 1, characterized in that: The main size of the nanocellulose aerogel bandage is 5cm×3.5cm.

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