Composite film medical dressing

Abstract

The utility model relates to a composite film, in particular to a composite film medical dressing, comprising a dressing film, wherein the dressing film comprises a hemostatic and antibacterial layer, a liquid permeable layer arranged on the hemostatic and antibacterial layer, a breathable layer arranged on the liquid permeable layer, a viscose layer arranged on the breathable layer, and an upper surface layer arranged on the viscose layer; the hemostatic and antibacterial layer is composed of a hemostatic layer and an antibacterial layer; the liquid permeable layer is composed of a hydrophilic gel layer and a water-absorbing pad layer, the hydrophilic gel layer is arranged on a side of the hemostatic layer away from the antibacterial layer, and the water-absorbing pad layer is arranged on a side of the breathable layer away from the viscose layer, so that the utility model has a good hemostatic effect to reduce the risk of infection; the liquid permeable layer helps the utility model to absorb wound exudate, keeps the wound moist, prevents liquid from accumulating around the wound, helps cell proliferation and migration, and promotes wound healing; the breathable layer enables the utility model to have good air permeability and moisture permeability; the viscose layer can fit the skin; and the upper surface layer enables the utility model to have good barrier performance.

Description

Technical Field

[0001] The utility model relates to a composite film, in particular to a composite film medical dressing. Background Art

[0002] During trauma and surgery, the wound needs to be kept dry to provide a good environment for wound healing so that the wound can heal as soon as possible. The traditional method is to use gauze dressings to care for the wound, but since the wound will stick to the gauze dressing, it will cause pain when changing the dressing, and even cause secondary damage to the wound. Summary of the invention

[0003] The utility model aims to provide a composite film medical dressing which can fit the skin, has hemostatic and antibacterial effects, has good air permeability and moisture permeability, can promote wound healing, and has excellent barrier properties, protects the wound to reduce infection, and prevents secondary damage to the wound.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite film medical dressing, comprising a dressing film, wherein the dressing film comprises a hemostatic and antibacterial layer, a liquid permeable layer arranged on the hemostatic and antibacterial layer, a breathable layer arranged on the liquid permeable layer, a viscose layer arranged on the breathable layer, and an upper surface layer arranged on the viscose layer; the hemostatic and antibacterial layer is composed of a hemostatic layer and an antibacterial layer; the liquid permeable layer is composed of a hydrophilic gel layer and a water-absorbent pad layer, the hydrophilic gel layer is arranged on a side of the hemostatic layer away from the antibacterial layer, and the water-absorbent pad layer is arranged on a side of the breathable layer away from the viscose layer.

[0005] In order to avoid sticking of the wound and improve the antibacterial performance of the utility model, as a preferred composite film medical dressing of the utility model, the hemostatic and antibacterial layer is a composite film made of sodium alginate and bletilla striata gum, and the bacterial layer is an antibacterial coating.

[0006] In order to make the utility model have good air permeability and moisture permeability, as a preferred composite film medical dressing of the utility model, the air permeable layer is a silicone layer or a polyurethane film.

[0007] In order to be able to fit the skin, as a preferred composite film medical dressing of the utility model, the viscose layer is a viscose silk layer.

[0008] In order to have good barrier properties, as a preferred composite film medical dressing of the utility model, the upper surface layer is a polyester or polyamide film.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0010] The dressing film of the utility model is composed of a hemostatic and antibacterial layer, a liquid exudate layer, a breathable layer, a viscose layer and an upper surface layer from bottom to top. The hemostatic and antibacterial layer is a composite film made of sodium alginate and bletilla striata gum. The composite film plus the antibacterial layer make the utility model have good hemostatic effect, improve the antibacterial performance of the utility model, and reduce the risk of infection; the liquid exudate layer helps the utility model to absorb wound exudate, keep the wound moist, prevent liquid from accumulating around the wound, help cell proliferation and migration, and promote wound healing; the breathable layer makes the utility model have good air permeability and moisture permeability; the viscose layer can fit the skin; and the upper surface layer makes the utility model have good barrier performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view structural schematic diagram of the utility model;

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the hemostatic and antibacterial layer of the utility model;

[0013] Figure 3 It is a schematic diagram of the cross-sectional structure of the liquid permeable layer of the utility model.

[0014] In the figure: 1. dressing film; 2. hemostatic and antibacterial layer; 3. exudate layer; 4. breathable layer; 5. adhesive layer; 6. upper surface layer; 7. hemostatic layer; 8. antibacterial layer; 9. hydrophilic gel layer; 10. water-absorbent pad layer. DETAILED DESCRIPTION

[0015] See also Figures 1 to 3 A composite film medical dressing comprises a dressing film 1, wherein the dressing film 1 comprises a hemostatic and antibacterial layer 2, a liquid permeable layer 3 arranged on the hemostatic and antibacterial layer 2, a breathable layer 4 arranged on the liquid permeable layer 3, an adhesive layer 5 arranged on the breathable layer 4, and an upper surface layer 6 arranged on the adhesive layer 5; the hemostatic and antibacterial layer 2 is composed of a hemostatic layer 7 and an antibacterial layer 8; the liquid permeable layer 3 is composed of a hydrophilic gel layer 9 and a water-absorbent pad layer 10, the hydrophilic gel layer 9 is arranged on the side of the hemostatic layer 7 away from the antibacterial layer 8, and the water-absorbent pad layer 10 is arranged on the side of the breathable layer 4 away from the adhesive layer 5.

[0016] In this embodiment: the dressing film 1 is composed of a hemostatic and antibacterial layer 2, a liquid exudate layer 3, a breathable layer 4, an adhesive layer 5 and an upper surface layer 6 from bottom to top. The hemostatic and antibacterial layer 2 enables the utility model to have a good hemostatic effect and can prevent the wound from sticking; the antibacterial layer 8 can improve the antibacterial performance of the utility model to reduce the risk of infection; the hydrophilic gel layer 9 and the absorbent pad layer 10 can both help the utility model absorb wound exudate, keep the wound moist, prevent liquid from accumulating around the wound, help cell proliferation and migration, and promote wound healing; the breathable layer 4 enables the utility model to have good air permeability and moisture permeability; the adhesive layer 5 can fit the skin; the upper surface layer 6 enables the utility model to have good barrier properties.

[0017] As a technical optimization solution of the utility model, the hemostatic antibacterial layer 2 is a composite film made of sodium alginate and bletilla striata glue, and the antibacterial layer is an antibacterial coating.

[0018] In this embodiment: the hemostatic and antibacterial layer 2 is a composite film made of sodium alginate and bletilla striata gum, which makes the utility model have significant hemostatic, anti-infection and wound healing effects. Bletilla striata gum and sodium alginate have good biocompatibility, which can prevent the wound from sticking and prevent the penetration of liquids and microorganisms, thereby protecting the wound to reduce the risk of infection; the antibacterial layer 8 adopts an antibacterial coating or a silver ion layer, so that the dressing film 1 can inhibit the growth of bacteria to reduce the risk of infection; the thickness of the hemostatic and antibacterial layer 2 is 10-28 microns.

[0019] As a technical optimization solution of the utility model, the air permeable layer 4 is a silicone layer or a polyurethane film; the thickness of the air permeable layer 4 is 30-48 microns.

[0020] In this embodiment: the breathable layer 4 is made of a silicone layer or a polyurethane film, which has good air permeability and moisture permeability, can prevent moisture accumulation, and at the same time allow gas exchange to promote wound healing.

[0021] As a technical optimization solution of the present invention, the viscose layer 5 is a viscose silk layer.

[0022] In this embodiment: the viscose layer is soft and comfortable, can fit the skin, and provide the wound with the required comfortable environment. It also has a certain moisture absorption property, which can keep the wound dry. The thickness of the viscose layer 5 is 5-10 microns.

[0023] As a technical optimization solution of the utility model, the upper surface layer 6 is a polyester or polyamide film.

[0024] In this embodiment: the polyester or polyamide film has good barrier properties and can prevent the penetration of liquids and microorganisms, thereby protecting the wound and reducing the risk of infection; the thickness of the upper surface layer 6 is 15-25 microns.

[0025] Working principle: The hemostatic and antibacterial layer 2 is a composite film made of sodium alginate and bletilla striata gum, which makes the utility model have good hemostatic effect and can prevent the wound from sticking. The composite film is added with an antibacterial agent (antibacterial coating or silver ion layer) to improve the antibacterial performance of the utility model to reduce the risk of infection; the exudate layer 3 is composed of a hydrophilic gel layer 9 and a water-absorbing pad layer 10, respectively. The hydrophilic gel layer 9 and the water-absorbing pad can help the utility model absorb the wound exudate, keep the wound moist, prevent liquid from accumulating around the wound, help cell proliferation and migration, and promote the wound. healing; the breathable layer 4 is made of a silicone layer or a polyurethane film, which has good air permeability and moisture permeability, can prevent moisture accumulation, and allow gas exchange to promote wound healing; the viscose layer 5 is made of a viscose silk layer, which is soft and comfortable, can fit the skin, and provide the required comfortable environment for the wound. At the same time, it has a certain moisture absorption performance, which can keep the wound dry; the upper surface layer 6 is made of polyester or polyamide film, which has good barrier properties and can prevent the penetration of liquids and microorganisms, thereby protecting the wound to reduce the risk of infection.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite film medical dressing, comprising a dressing film (1), characterized in that: The dressing film (1) comprises a hemostatic and antibacterial layer (2), a liquid permeable layer (3) arranged on the hemostatic and antibacterial layer (2), a breathable layer (4) arranged on the liquid permeable layer (3), an adhesive layer (5) arranged on the breathable layer (4), and an upper surface layer (6) arranged on the adhesive layer (5); the hemostatic and antibacterial layer (2) is composed of a hemostatic layer (7) and an antibacterial layer (8); the liquid permeable layer (3) is composed of a hydrophilic gel layer (9) and a water-absorbing pad layer (10); the hydrophilic gel layer (9) is arranged on a side of the hemostatic layer (7) away from the antibacterial layer (8), and the water-absorbing pad layer (10) is arranged on a side of the breathable layer (4) away from the adhesive layer (5).

2. A composite film medical dressing according to claim 1, characterized in that: The hemostatic and antibacterial layer (2) is a composite film made of sodium alginate and bletilla striata gum, and the antibacterial layer is an antibacterial coating.

3. The composite film medical dressing according to claim 1, characterized in that: The air permeable layer (4) is a silica gel layer or a polyurethane film.

4. The composite film medical dressing according to claim 1, characterized in that: The viscose layer (5) is a viscose silk layer.

5. The composite film medical dressing according to claim 1, characterized in that: The upper surface layer (6) is a polyester or polyamide film.

Images