High-breathability biological application

Abstract

The utility model relates to the technical field of biological application, and discloses a high-breathability biological application which comprises a non-woven fabric layer, a biological dressing layer, a first binder layer located on the side face of one side of the non-woven fabric layer and located on the peripheral side of the biological dressing layer, and a first release film covering the biological dressing layer. The first release film comprises a first film surface and a second film surface; the first film surface is positioned on one side of the biological dressing layer; the side edge of one side of the first film surface is adhered to the first adhesive layer; the second film surface is positioned on one side, far away from the first film surface, of the biological dressing layer, and the side edge of one side of the second film surface is adhered to the first adhesive layer; an extension surface covering the outer side of the first membrane surface is integrally arranged on the side, away from the first binder layer, of the second membrane surface, elastic bands used for being pressed on the side edges of the non-woven fabric layer are arranged at the two ends of the side face, away from the biological dressing layer, of the non-woven fabric layer, one end of each elastic band is connected with the first membrane surface, and the other end of each elastic band is connected with the second membrane surface; a second binder layer is arranged on the extension surface, and a second release film covers the second binder layer.

Description

Technical Field

[0001] The utility model belongs to the technical field of biological dressings, and particularly relates to a highly breathable biological dressing. Background Art

[0002] Biological dressings can be divided into two categories: artificial biological dressings and allogeneic tissue wound coverings. Common artificial biological dressings are prepared from materials such as collagen, chitosan, and hyaluronic acid. They have a hemostatic and coagulation-promoting effect and can induce the proliferation and differentiation of various cells. However, they have disadvantages such as poor stability and weak ability to absorb exudate.

[0003] Currently, a Chinese patent with the publication number CN219070952U and the publication date of May 26, 2023, discloses a novel antibacterial dressing, which includes a mixed fiber layer mixed with an antibacterial agent. The antibacterial agent can be one or a combination of silver, silver ions, chlorhexidine gluconate (CHG), polyhexamethylene hydrochloride (PHMB), or povidone iodine. The mixed fiber layer can be made of a mixture of two or more materials selected from polyester fiber, viscose fiber, alginate fiber, carboxymethyl cellulose (CMC) fiber, chitosan fiber, or nylon fiber. The mixed fiber layer mixed with the antibacterial agent has a good adsorption effect, can absorb wound exudate into the mixed fiber layer and perform antibacterial treatment on it through the antibacterial agent, thereby effectively eliminating microorganisms in the exudate and achieving an antibacterial effect.

[0004] After this novel antibacterial dressing adheres to the skin of a patient's wound, due to the friction of the patient's daily activities on the periphery of the dressing, the bonding state between the periphery of the dressing and the skin is broken, and finally the position of the periphery of the dressing will separate from the skin, which is not conducive to the stable bonding of the dressing on the patient's body surface. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a highly breathable biological dressing, which is beneficial to the stable bonding of the non-woven fabric layer on the patient's body surface.

[0006] The above technical object of the present utility model is achieved through the following technical solutions: A highly breathable biological dressing, comprising a non-woven fabric layer, a biological dressing layer located at the center of one side surface of the non-woven fabric layer, a first adhesive layer located on one side surface of the non-woven fabric layer and around the biological dressing layer, and a first release film covering the biological dressing layer. The first release film includes a first film surface located on one side of the biological dressing layer and with one side edge bonded to the first adhesive layer, and a second film surface located on the side of the biological dressing layer away from the first film surface and with one side edge bonded to the first adhesive layer. An extension surface covering the outside of the first film surface is integrally provided on the side of the second film surface away from the first adhesive layer. Elastic bands for pressing on the side edges of the non-woven fabric layer are provided at both ends of the side surface of the non-woven fabric layer away from the biological dressing layer. One end of the elastic band is connected to the first film surface and the other end is connected to the second film surface. A second adhesive layer is provided on the extension surface, and a second release film covers the second adhesive layer.

[0007] A further setting of the present utility model is that: A plurality of ventilation holes are provided on the non-woven fabric layer.

[0008] A further setting of the present utility model is that: Absorbent cotton strips are provided on the periphery of the side surface of the non-woven fabric layer away from the biological dressing layer.

[0009] In summary, the present utility model has the following beneficial effects:

[0010] 1. When using this highly breathable biological dressing, first tear off the first film surface and the second film surface of the first release film, and then the non-woven fabric layer and the biological dressing layer can be bonded to the position of the wound on the patient's body surface by using the first adhesive layer. At the same time, the torn first film surface and the second film surface can be connected by the elastic band. Then, the elastic band can be pressed on the side edge of the non-woven fabric layer. At the same time, tear off the second release film, and the first film surface and the second film surface can be wrapped around the limb on the periphery of the patient's wound. And the extension surface is bonded to the first film surface by using the second adhesive layer. Finally, the side edge of the non-woven fabric layer can be pressurized through the elastic band, which is beneficial to the stable bonding of the non-woven fabric layer on the patient's body surface;

[0011] 2. By using the plurality of ventilation holes provided on the non-woven fabric layer, the plurality of ventilation holes can be beneficial to improving the air permeability of this biological dressing;

[0012] 3. When there is exudate leaking from the periphery of the non-woven fabric layer, by using the absorbent cotton strips provided on the periphery of the side surface of the non-woven fabric layer away from the biological dressing layer, the absorbent cotton strips can absorb the exuded liquid and prevent the liquid from spreading. Description of the Drawings

[0013] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the present utility model;

[0016] Figure 3 is a partial cross-sectional view of the connection relationship between the non-woven fabric layer, the biological dressing layer, and the first adhesive layer in the present utility model;

[0017] Figure 4 is a plan view of the structure of the present utility model. At this time, the non-woven fabric layer and the biological dressing layer are bonded to the wound position on the body surface of the patient by the first adhesive layer, and the first film surface and the second film surface are wrapped around the limb on the periphery of the patient's wound, and the extension surface is bonded to the first film surface by the second adhesive layer;

[0018] Figure 5 is Figure 1 an enlarged view of part A in

[0019] In the figure, 1 is the non-woven fabric layer; 11 is the air hole; 2 is the biological dressing layer; 3 is the first adhesive layer; 4 is the first release film; 41 is the first film surface; 42 is the second film surface; 421 is the extension surface; 5 is the elastic band; 6 is the second adhesive layer; 7 is the second release film; 8 is the absorbent cotton strip. Specific embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] A highly breathable biological dressing, referring to Figure 1 、 Figure 2 、 Figure 3, the highly breathable biological dressing includes a non-woven fabric layer 1, a biological dressing layer 2, a first adhesive layer 3, and a first release film 4. Among them, a plurality of ventilation holes 11 are formed in the non-woven fabric layer 1, and the biological dressing layer 2 is laid at the center of one side surface of the non-woven fabric layer 1. The biological dressing layer 2 is prepared from collagen, chitosan, and hyaluronic acid materials. At the same time, the first adhesive layer 3 is bonded to one side surface of the non-woven fabric layer 1 and is located on the periphery of the biological dressing layer 2. An absorbent cotton strip 8 is bonded to the periphery of the side surface of the non-woven fabric layer 1 away from the biological dressing layer 2.

[0022] Refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , the first release film 4 covers the outside of the biological dressing layer 2. The first release film 4 includes a first film surface 41 and a second film surface 42. Among them, the first film surface 41 is located on one side of the biological dressing layer 2 and one side edge is bonded to the first adhesive layer 3, while the second film surface 42 is located on the side of the biological dressing layer 2 away from the first film surface 41 and one side edge is bonded to the first adhesive layer 3. At the same time, an extension surface 421 covering the outside of the first film surface 41 is integrally provided on the side of the second film surface 42 away from the first adhesive layer 3. Elastic bands 5 are provided at both ends of the side surface of the non-woven fabric layer 1 away from the biological dressing layer 2. The elastic bands 5 are made of elastic fabric. The elastic bands 5 are used to press tightly on the side of the non-woven fabric layer 1. One end of the elastic band 5 is bonded to the first film surface 41 and the other end is bonded to the second film surface 42. At the same time, a second adhesive layer 6 is bonded to the extension surface 421, and a second release film 7 covers the second adhesive layer 6.

[0023] Principle: When using this highly breathable biological dressing, first tear off the first film surface 41 and the second film surface 42 of the first release film 4, and then the non-woven fabric layer 1 and the biological dressing layer 2 can be bonded to the wound position on the patient's body surface by using the first adhesive layer 3. At the same time, the torn first film surface 41 and the second film surface 42 can be connected through the elastic bands 5. Then the elastic bands 5 can be pressed tightly on the side of the non-woven fabric layer 1. At the same time, tear off the second release film 7, and the first film surface 41 and the second film surface 42 can be wrapped around the limb on the periphery of the patient's wound through the elastic bands 5. And the extension surface 421 is bonded to the first film surface 41 by using the second adhesive layer 6. Finally, the side of the non-woven fabric layer 1 can be pressurized through the elastic bands 5, which is beneficial to the stable bonding of the non-woven fabric layer 1 on the patient's body surface.

Claims

1. A highly breathable biological dressing, comprising a non-woven fabric layer (1), a biological dressing layer (2) located at the center of one side of the non-woven fabric layer (1), a first adhesive layer (3) located at one side of the non-woven fabric layer (1) and at the periphery of the biological dressing layer (2), and a first release film (4) covering the outside of the biological dressing layer (2), characterized in that: The first release film (4) comprises a first film surface (41) located on one side of the biological dressing layer (2) and bonded to the first adhesive layer (3) on one side, and a second film surface (42) located on the side of the biological dressing layer (2) away from the first film surface (41) and bonded to the first adhesive layer (3) on one side, the second film surface (42) being integrally provided with an extension surface (421) covering the outer side of the first film surface (41) on the side away from the first adhesive layer (3), elastic bands (5) for pressing the side of the non-woven fabric layer (1) are provided at both ends of the side surface of the non-woven fabric layer (1) away from the biological dressing layer (2), one end of the elastic band (5) is connected to the first film surface (41) and the other end is connected to the second film surface (42), a second adhesive layer (6) is provided on the extension surface (421), and the second adhesive layer (6) is covered with a second release film (7).

2. A highly breathable biological patch according to claim 1, characterized in that: The non-woven fabric layer (1) is provided with a plurality of ventilation holes (11).

3. A highly breathable biological patch according to claim 1, characterized in that: A wicking cotton strip (8) is arranged on the peripheral side of the non-woven fabric layer (1) away from the biological dressing layer (2).

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