Composite wound dressing

Abstract

The utility model relates to the field of wound dressings, and discloses a composite wound dressing which comprises a main body, bonding heads are arranged on the left side and the right side of the main body, bonding layers are arranged on the upper side and the lower side of the bonding head on the left side and the upper side of the bonding head on the right side, and a medicine applying layer is arranged at the middle end of the bottom of the main body. Water absorption layers are arranged on the left side and the right side of the medicine application layer, an antibacterial layer is arranged on the upper side of the medicine application layer, a waterproof breathable layer is arranged on the upper side of the antibacterial layer, and a protection layer is arranged on the upper side of the waterproof breathable layer. According to the medical dressing, the water absorption layer and the waterproof breathable layer are arranged to carry out water absorption and waterproof treatment on a wound, the situation that the wound is inflamed due to the fact that water is located on the surface of the wound is avoided, the bacteriostatic layer and the medicine applying layer are arranged to treat and sterilize the wound of a patient, and therefore external bacteria are prevented from infecting the wound, and the treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of wound dressings, in particular to a composite wound dressing. Background Art

[0002] Wound dressings are materials used clinically to bandage wounds, cover wounds or other injured parts, also known as wound dressings. Wound dressings mainly include passive dressings, interactive dressings, and the commonly used bioactive dressings. Passive dressings are also called traditional dressings. The mechanism of interactive dressings lies in the fact that there are multiple interactions between the dressing and the wound. It can absorb wound exudate and toxic substances, and also allow gas exchange between the wound and the dressing, providing a good environment for wound healing. It can also prevent external microorganisms from invading the wound and prevent wound infection. Bioactive dressings, also known as airtight dressings, can prevent the wound from drying out. They are mainly composite dressings made of polymer materials and biological materials. They are currently a hot topic in the study of wound dressings.

[0003] However, existing wound dressings are insufficient in functionality, such as being unable to inhibit bacteria and be waterproof and having poor air permeability. In response to this technical problem, the present application proposes a composite wound dressing. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art and proposes a composite wound dressing, which has antibacterial ability, waterproof and water-absorbing ability and good air permeability.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A composite wound dressing comprises a main body, wherein adhesive joints are arranged on both left and right sides of the main body, adhesive layers are arranged on both upper and lower sides of the adhesive joint on the left side and on the upper side of the adhesive joint on the right side, a medicine compress layer is arranged at the bottom middle end of the main body, water absorption layers are arranged on both left and right sides of the medicine compress layer, an antibacterial layer is arranged on the upper side of the medicine compress layer, a waterproof and breathable layer is arranged on the upper side of the antibacterial layer, and a protective layer is arranged on the upper side of the waterproof and breathable layer.

[0007] Furthermore, the adhesive layer is prepared from medical pure natural maleic gum.

[0008] Furthermore, the medicine compress layer is prepared using medical agents as raw materials.

[0009] Furthermore, the water-absorbing layer is prepared by using medical super absorbent resin as raw material.

[0010] Furthermore, the antibacterial layer is prepared using nano-silver bactericidal material as raw material.

[0011] Furthermore, the waterproof and breathable layer is made of medical-grade polyurethane film as raw material.

[0012] Furthermore, the protective layer is prepared using cloth as raw material.

[0013] Furthermore, protective films are provided on both the upper and lower sides of the main body, and a peeling strip is provided on the right side of the protective film.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, a water-absorbing layer made of medical super absorbent resin and a waterproof and breathable layer made of medical-grade polyurethane film are provided to absorb water and waterproof the wound, thereby preventing moisture from being on the surface of the wound and causing inflammation of the wound.

[0016] 2. In the utility model, the composite wound dressing treats and sterilizes the patient's wound by providing an antibacterial layer made of nano-silver bactericidal material and a medicinal dressing layer made of medical agents, thereby preventing external bacteria from infecting the wound and improving the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of a composite wound dressing proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of a composite wound dressing proposed by the utility model;

[0019] Figure 3 This is a bottom structural schematic diagram of a composite wound dressing proposed by the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the main cross-sectional structure of a composite wound dressing.

[0021] Legend:

[0022] 1. Adhesive joint; 2. Main body; 3. Peel-off strip; 4. Protective film; 5. Adhesive layer; 6. Protective layer; 7. Waterproof and breathable layer; 8. Antibacterial layer; 9. Medical compress layer; 10. Water-absorbing layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-4 The utility model provides an embodiment: a composite wound dressing, including a main body 2, adhesive joints 1 are arranged on both the left and right sides of the main body 2, adhesive layers 5 are arranged on the upper and lower sides of the left adhesive joint 1 and the upper side of the right adhesive joint 1, a medicine compress layer 9 is arranged at the bottom middle end of the main body 2, water absorption layers 10 are arranged on the left and right sides of the medicine compress layer 9, an antibacterial layer 8 is arranged on the upper side of the medicine compress layer 9, a waterproof and breathable layer 7 is arranged on the upper side of the antibacterial layer 8, and a protective layer 6 is arranged on the upper side of the waterproof and breathable layer 7;

[0025] Specifically, the composite wound dressing is prepared by stacking a plurality of materials including a medicine compress layer 9, a water absorbing layer 10, an antibacterial layer 8, a waterproof and breathable layer 7 and a protective layer 6 from bottom to top, and then bonding adhesive joints 1 on both sides thereof, and arranging an adhesive layer 5 on the adhesive joints 1.

[0026] The adhesive layer 5 is made of medical pure natural maleic gum, which is harmless to the human body and can be more firmly bonded to the skin surface, thereby improving the bonding effect of the composite wound dressing and improving its adhesion.

[0027] The medicine compress layer 9 is prepared with medical drugs as raw materials. The medical drugs will be adjusted and replaced according to the wound type of the patient to meet the treatment needs of different patients.

[0028] The water-absorbing layer 10 is prepared by using medical super absorbent resin as raw material. Super absorbent resin is a new type of polymer material, which can absorb water hundreds to thousands of times its own weight, is non-toxic, harmless and pollution-free; has extremely strong water absorption capacity and high water retention capacity, and is a high molecular weight polymer obtained by polymerization of acrylic acid → high water retention capacity, and balance of absorption capacity under high load. The absorbed water cannot be squeezed out by simple physical methods, and can repeatedly release and absorb water, thereby performing a good water absorption treatment on the wound surface to prevent the water discharged from the wound from remaining on the wound surface and causing inflammation.

[0029] The antibacterial layer 8 is prepared with nano-silver bactericidal material as raw material. The surface of nano-silver atoms is arranged in a "medium state" between solid and molecule, which can destroy the cell walls and genetic composition of bacteria and viruses and inactivate the bacteria. The unique chemical structure determines that silver has a high catalytic ability. The reduction potential of highly oxidized silver is extremely high, which is enough to produce atomic oxygen in the surrounding space. Atomic oxygen has strong oxidizing properties and can completely sterilize, thereby preventing external bacteria from infecting the wound.

[0030] The waterproof and breathable layer 7 is made of medical-grade polyurethane film as raw material. Like polyurethane elastomer, the polyurethane film has excellent high tension, high tensile strength, waterproof and breathable properties, toughness and aging resistance. It also has excellent biological and blood compatibility and chemical resistance, thereby preventing external moisture from entering the wound to cause inflammation, and making the entire composite wound dressing have good air permeability.

[0031] The protective layer 6 is made of cloth as a raw material, and the cloth is used to protect the internal dressing layer and other structures to prevent the internal structure from being damaged by external factors.

[0032] A protective film 4 is provided on both the upper and lower sides of the main body 2, and a peeling strip 3 is provided on the right side of the protective film 4. The protective film 4 is used to protect the entire composite wound dressing for easy storage, and the protective film 4 can be torn off by peeling the strip 3.

[0033] Working principle: When storing, the entire composite wound dressing is protected by the protective film 4. When it is needed, the protective film 4 is torn off by peeling off the strip 3, and then the medicine coating 10 is aligned with the wound, and then the adhesive head 1 is attached to the skin.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. 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 wound dressing, comprising a main body (2), characterized in that: Adhesive joints (1) are provided on both the left and right sides of the main body (2); adhesive layers (5) are provided on both the upper and lower sides of the left adhesive joint (1) and on the upper side of the right adhesive joint (1); a medicine compress layer (9) is provided at the middle end of the bottom of the main body (2); water-absorbing layers (10) are provided on both the left and right sides of the medicine compress layer (9); an antibacterial layer (8) is provided on the upper side of the medicine compress layer (9); a waterproof and breathable layer (7) is provided on the upper side of the antibacterial layer (8); and a protective layer (6) is provided on the upper side of the waterproof and breathable layer (7).

2. A composite wound dressing according to claim 1, characterized in that: The adhesive layer (5) is prepared from medical pure natural maleic gum.

3. The composite wound dressing according to claim 1, characterized in that: The medicine compress layer (9) is prepared using medical agents as raw materials.

4. The composite wound dressing according to claim 1, characterized in that: The water-absorbing layer (10) is prepared using medical super absorbent resin as raw material.

5. The composite wound dressing according to claim 1, characterized in that: The antibacterial layer (8) is prepared using nano silver bactericidal material as raw material.

6. The composite wound dressing according to claim 1, characterized in that: The waterproof and breathable layer (7) is made of medical-grade polyurethane film as raw material.

7. The composite wound dressing according to claim 1, characterized in that: The protective layer (6) is prepared using cloth as raw material.

8. The composite wound dressing according to claim 1, characterized in that: The upper and lower sides of the main body (2) are both provided with protective films (4), and the right side of the protective film (4) is provided with a peeling strip (3).

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