CN218607064U - Anti-infection dressing for repairing skin wound - Google Patents
Anti-infection dressing for repairing skin wound Download PDFInfo
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- CN218607064U CN218607064U CN202222176678.8U CN202222176678U CN218607064U CN 218607064 U CN218607064 U CN 218607064U CN 202222176678 U CN202222176678 U CN 202222176678U CN 218607064 U CN218607064 U CN 218607064U
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Abstract
The utility model relates to an anti-infection dressing for repairing skin wound surfaces, which comprises a back lining layer, wherein a chitosan composite sponge layer is fixed at the bottom of the back lining layer through medical adhesive, a protective page layer is arranged at the bottom of the chitosan composite sponge layer, the back lining layer is of an oval sheet structure, the short radius of the back lining layer is 10-25mm, the long radius is 30-50mm, the chitosan composite sponge layer is of an oval sheet structure with the thickness of 3-10mm, the short radius of the chitosan composite sponge layer is 8-20mm, and the long radius is 20-40mm; the sponge has good flexibility and comfortable use feeling, nano silver particles are uniformly loaded, and in the use process, the sponge can stop bleeding, absorb liquid, repair damaged tissues, promote wound healing, slowly release nano silver, inhibit bacteria, relieve pain and resist infection, reduce inflammatory reaction, reduce scars, keep moisture, is not easy to adhere to wounds, is easy to remove, does not cause secondary injury of the wounds and does not easily cause allergic reaction of skin, can be used for wound surfaces such as operation incisions, skin supply areas and various chronic difficult-to-heal wound surfaces, and meets different application scenes.
Description
Technical Field
The utility model relates to the technical field of medical equipment, concretely relates to an anti-infection dressing for skin surface of a wound is restoreed.
Background
The wound surface is the damage of normal skin or tissue caused by external injury factors such as surgery, external force, heat, current, chemical substances, low temperature and internal factors of the body such as local blood supply disorder. This is often accompanied by a breakdown in the integrity of the skin and a loss of a certain amount of normal tissue, while the normal function of the skin is impaired, also known as a wound or trauma.
Wound healing refers to a series of pathophysiological processes of repairing local tissues through regeneration, repair and reconstruction after the tissues are lost due to the action of injury factors. Is essentially an inherent defensive adaptive response of the body to tissue cell damage caused by the action of various deleterious factors. This regenerative repair is manifested in the restoration of the missing tissue structure and also in the restoration of its function to a different extent. Most skin wounds heal spontaneously, but when the skin is subjected to extensive or irreversible damage, immediate coverage with a wound dressing or skin substitute is required to assist in skin rejuvenation repair. For the treatment of skin wounds, it is of utmost importance to provide the outermost barrier: for example, to coat the epidermis to prevent infection, reduce blood loss, and control pain.
The traditional dressing only can play a role in covering, and the regeneration and repair effects on the wound surface are often not completely satisfactory. The traditional dressing has the characteristics of wound surface protection, seepage absorption and simple preparation, but when the dressing covers the wound surface, wound surface exudate and dry dermal tissues are easy to form crusts together, epithelial cells are forced to move under the crusts to hinder epithelialization; meanwhile, the wound surface and the dry surface formed by the crust skin are adhered to the dressing, granulation tissues are easy to grow into fiber meshes, pain is caused when the dressing is changed and the dressing is lifted, and new wounds are formed.
An ideal dressing should be able to maintain a moist environment at the interface of the wound bed, allow gas exchange, perform a barrier function, and remove excess exudate. Meanwhile, the wound dressing is nontoxic to human bodies, cannot cause allergy, is not easy to adhere to the wound, is easy to remove and cannot cause secondary damage. The wound dressing is prepared from biological materials with wide sources, has simple processing process, no pollution to the environment, reasonable cost and is beneficial to popularization.
Moisture retaining dressings retain moisture at the wound site particularly important for granulation tissue formation and connective tissue regeneration, which is often accompanied by a reduction in wound exudate. According to the moist theory of wound healing, wound dressings can be generally classified into three categories according to their functions: liquid-absorbing type dressings, moisture-retaining type dressings, and liquid-supplying type dressings. The choice of dressing depends primarily on the type, condition and location of the wound. For example, skin burn caused by hitting of a battlefield firearm is often more in exudation, the dressing is required to have a certain liquid absorption function when being properly treated, the wound surface is kept moist, healing without symptom marks is facilitated, and the dressing preferably has good moisture retention capacity so as to better play a healing promoting function.
In recent years, a number of research teams have focused on the production and improvement of new wound dressings by the synthesis and modification of biocompatible materials. Therefore, the anti-infection dressing for repairing the skin wound surface, which has the advantages of simple structure, convenient operation, capability of forming a wet environment on the wound surface and preventing reinfection, thereby promoting the wound surface healing, shortening the healing time and reducing the scar formation, has wide market prospect.
Disclosure of Invention
Not enough to prior art, the utility model provides a simple structure, convenient operation makes the surface of a wound form moist environment, prevents to infect again to promote the surface of a wound healing, shorten healing time, reduce scar formation be used for prosthetic anti infection dressing of skin surface of a wound, be used for overcoming the defect among the prior art.
The technical scheme of the utility model is realized like this: the utility model provides a dressing of resisting infection for skin wound is restoreed, includes the back sheet, the bottom of back sheet be fixed with chitosan composite sponge layer through medical adhesive, the bottom of chitosan composite sponge layer is provided with the protection page or leaf layer, the back sheet is oval sheet structure, the short radius of back sheet is 10-25mm, the major radius is 30-50mm, chitosan composite sponge layer is the long oval sheet structure of thickness 3-10mm, the short radius of chitosan composite sponge layer is 8-20mm, the major radius is 20-40mm.
The protective page layer is of an oval sheet structure made of glassine silicone oil paper with silicon on one surface, the short radius of the protective page layer is not less than that of the chitosan composite sponge layer, and the short radius of the protective page layer is not more than that of the back lining layer; the long radius of the protective page layer is not less than that of the chitosan composite sponge layer, and the long radius of the protective page layer is not more than that of the back lining layer.
The middle part of the protection page layer is provided with an S-shaped curve crack which divides the protection page layer into a first protection page and a second protection page.
The chitosan composite sponge layer is a soft and elastic elliptical sheet-shaped structure with interconnected microporous structures, the pore diameter of each microporous structure is 50-300 mu m, and the porosity is 50-80%.
The chitosan composite sponge layer is loaded with nano silver particles, the particle size of the nano silver particles is 1-100 mu m, and the loading amount is 10-50ug/g of sponge.
The back lining layer is an oval sheet structure made of flexible elastic cotton materials or waterproof ultrathin PU materials.
The utility model discloses have following positive effect: the product adopts a layered structure, the whole shape is a long ellipse with a multilayer structure, and the protective page layer is divided into two parts in equal, so that the protective page can be removed conveniently when in use; the product has good flexibility, comfortable use feeling and uniform loading of nano silver particles, and in the use process, the sponge can stop bleeding, absorb liquid, repair damaged tissues, promote wound healing, slowly release nano silver, inhibit bacteria, relieve pain, resist infection, reduce inflammatory reaction, reduce scars, keep moisture, is not easy to adhere to wounds, is easy to remove, does not cause secondary injury of the wounds, does not easily cause skin anaphylactic reaction, can be used for wound surfaces such as operation incisions, skin supply areas and various chronic difficult-to-heal wound surfaces, and meets different application scenes.
Drawings
Fig. 1 is a schematic top view of the present invention.
Fig. 2 is a schematic view of the bottom structure of the present invention.
Fig. 3 is a schematic diagram of the layered structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, 2 and 3, the anti-infection dressing for repairing the skin wound comprises a back lining layer 1, wherein a chitosan composite sponge layer 2 is fixedly arranged at the bottom of the back lining layer 1 through medical adhesive, a protection page layer 3 is arranged at the bottom of the chitosan composite sponge layer 2, the back lining layer 1 is of an oval sheet structure, the short radius of the back lining layer 1 is 10-25mm, the long radius of the back lining layer 1 is 30-50mm, the chitosan composite sponge layer 2 is of a long oval sheet structure with the thickness of 3-10mm, the short radius of the chitosan composite sponge layer 2 is 8-20mm, and the long radius of the chitosan composite sponge layer is 20-40mm. The protective leaf layer 3 is an oval sheet-shaped structure made of glassine silicone oil paper with silicon on one surface, the short radius of the protective leaf layer 3 is not less than that of the chitosan composite sponge layer 2, and the short radius of the protective leaf layer 3 is not more than that of the backing layer 1; the long radius of the protective page layer 3 is not less than that of the chitosan composite sponge layer 2, and the long radius of the protective page layer 3 is not more than that of the backing layer 1.
The middle part of the protective page layer 3 is provided with an S-shaped curve split 3-3, and the S-shaped curve split 3-3 divides the protective page layer 3 into a first protective page 3-1 and a second protective page 3-2. The chitosan composite sponge layer 2 is a soft and elastic oval sheet-shaped structure with interconnected microporous structures, the pore diameter of each microporous structure is 50-300 mu m, and the porosity is 50-80%. The chitosan composite sponge layer 2 is loaded with nano silver particles, the particle size of the nano silver particles is 1-100 mu m, and the loading capacity is 10-50ug/g of sponge. The back lining layer 1 is of an oval sheet structure made of flexible elastic cotton materials or waterproof ultrathin PU materials.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example one
The embodiment provides an anti-infection dressing for repairing a skin wound, which structurally comprises a protective page layer 3, a chitosan composite sponge layer 2, medical adhesive and a backing layer 1 as shown in figures 1, 2 and 3. The overall shape of the dressing is that of a long oval of a multilayer structure, and in an alternative to this embodiment, it is preferred that it has a short radius of 10mm and a long radius of 30mm. The protective page layer 3 is made of glassine silicone oil paper with one silicon-containing surface, an S-shaped curve crack 3-3 is arranged in the middle of the protective page, the S-shaped curve crack 3-3 divides the protective page layer 3 into a first protective page 3-1 and a second protective page 3-2, and the protective page is convenient to remove in use.
The chitosan composite sponge layer 2 is a composite sponge prepared by blending nano cellulose and chitosan, glycerol is a shaping agent, the sponge is a soft and elastic material with an interconnected microporous structure, the chitosan composite sponge layer 2 is an oblong sheet structure with the thickness of 3mm, the short radius of the chitosan composite sponge layer 2 is 8mm, and the long radius of the chitosan composite sponge layer is 20mm. The chitosan composite sponge layer 2 is a soft and elastic elliptical sheet-shaped structure with interconnected microporous structures, the aperture of the micropores is 50 mu m, and the porosity is 50%. The nano silver is uniformly loaded in the micropores of the chitosan composite sponge layer 2, the particle size of the nano silver is 30 mu m, the loading amount of the nano silver is 10ug/g of sponge, and the nano silver is slowly released in the use process, so that the continuous anti-infection effect can be realized. The medical adhesive is a German Han high adhesive which is not easy to cause skin allergic reaction, and the chitosan composite sponge is bonded and fixed on the back lining layer.
When the product is used, the first protective sheet 3-1 is partially torn off, the chitosan composite sponge layer 2 is aligned to the skin wound, one end of the exposed backing layer 1 is adhered to clean skin near the wound, and then the second protective sheet 3-2 is torn off, so that the product is fixed on the skin wound. The product is directly removed after being used for 24-72 hours, and is replaced by a new product.
Example two
The embodiment provides an anti-infection dressing for repairing a skin wound, which structurally comprises a protective page layer 3, a chitosan composite sponge layer 2, medical adhesive and a backing layer 1 as shown in figures 1, 2 and 3. The overall shape of the dressing is that of a long oval of a multilayer structure, and in an alternative to this embodiment, it is preferred that it has a short radius of 25mm and a long radius of 50mm. The protective leaf layer 3 is silicon-containing glassine silicone oil paper, an S-shaped curve crack 3-3 is arranged in the middle of the protective leaf, the S-shaped curve crack 3-3 divides the protective leaf layer 3 into a first protective leaf 3-1 and a second protective leaf 3-2, and the protective leaf is convenient to remove in use.
The chitosan composite sponge layer 2 is a composite sponge prepared by blending nano cellulose and chitosan, glycerol is a shaping agent, the sponge is a soft and elastic material with an interconnected microporous structure, the chitosan composite sponge layer 2 is an oblong sheet structure with the thickness of 10mm, the short radius of the chitosan composite sponge layer 2 is 20mm, and the long radius is 40mm. The chitosan composite sponge layer 2 is a soft and elastic oval sheet-shaped structure with interconnected microporous structures, the pore diameter of the micropores is 300 mu m, and the porosity is 80 percent. The nano silver is uniformly loaded in the micropores of the chitosan composite sponge layer 2, the particle size of the nano silver is 50 mu m, the loading amount is 50ug/g of sponge, and the nano silver is slowly released in the using process, so that the continuous anti-infection effect can be realized. The medical adhesive is a German Han high adhesive which is not easy to cause skin allergic reaction, and the chitosan composite sponge is bonded and fixed on the back lining.
When the product is used, the first protective page 3-1 is partially torn off, the chitosan composite sponge layer 2 is aligned to the skin wound surface, one end of the exposed backing layer 1 is stuck to clean skin near the wound surface, then the second protective page 3-2 is torn off, and the product is fixed at the skin wound surface. The product is directly removed after being used for 24-72 hours, and is replaced by a new product.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
The principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (6)
1. An anti-infective dressing for skin wound repair, comprising a backing layer (1), characterized in that: the medical adhesive composite sponge is characterized in that a chitosan composite sponge layer (2) is fixed at the bottom of a back lining layer (1) through medical adhesive, a protective sheet layer (3) is arranged at the bottom of the chitosan composite sponge layer (2), the back lining layer (1) is of an oval sheet structure, the short radius of the back lining layer (1) is 10-25mm, the long radius of the back lining layer (1) is 30-50mm, the chitosan composite sponge layer (2) is of a long oval sheet structure with the thickness of 3-10mm, the short radius of the chitosan composite sponge layer (2) is 8-20mm, and the long radius of the chitosan composite sponge layer is 20-40mm.
2. The anti-infective dressing for skin wound repair of claim 1, characterized in that: the protective leaf layer (3) is of an oval sheet structure made of glassine silicone oil paper with one silicon-containing surface, the short radius of the protective leaf layer (3) is not smaller than that of the chitosan composite sponge layer (2), and the short radius of the protective leaf layer (3) is not larger than that of the backing layer (1); the long radius of the protective page layer (3) is not less than that of the chitosan composite sponge layer (2), and the long radius of the protective page layer (3) is not more than that of the back lining layer (1).
3. An anti-infective dressing for skin wound repair according to claim 1 or 2, characterized in that: the middle part of the protection page layer (3) is provided with an S-shaped curve crack (3-3), and the S-shaped curve crack (3-3) divides the protection page layer (3) into a first protection page (3-1) and a second protection page (3-2).
4. An anti-infective dressing for skin wound repair according to claim 1 or 2, characterized in that: the chitosan composite sponge layer (2) is a soft and elastic elliptical sheet-shaped structure with interconnected microporous structures, the pore diameter of the micropores is 50-300 mu m, and the porosity is 50-80%.
5. An anti-infective dressing for skin wound repair according to claim 1 or 2, characterized in that: the chitosan composite sponge layer (2) is loaded with nano silver particles, the particle size of the nano silver particles is 1-100 mu m, and the loading capacity is 10-50ug/g of sponge.
6. An anti-infective dressing for skin wound repair according to claim 1 or 2, characterized in that: the back lining layer (1) is of an oval sheet structure made of flexible elastic cotton materials or waterproof ultrathin PU materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222176678.8U CN218607064U (en) | 2022-08-18 | 2022-08-18 | Anti-infection dressing for repairing skin wound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222176678.8U CN218607064U (en) | 2022-08-18 | 2022-08-18 | Anti-infection dressing for repairing skin wound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218607064U true CN218607064U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222176678.8U Active CN218607064U (en) | 2022-08-18 | 2022-08-18 | Anti-infection dressing for repairing skin wound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218607064U (en) |
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2022
- 2022-08-18 CN CN202222176678.8U patent/CN218607064U/en active Active
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