Deep wound surface filling dressing
By introducing hemp fiber structural core and active probiotic microcapsules into the dressing matrix, the problem of difficulty in removing existing dressings and single function in deep wound applications is solved, and the dressing with multiple functions is realized, which promotes wound healing and reduces production costs.
Patent Information
- Application Number
- CN202421459547.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-06-25
AI Technical Summary
When used in deep wounds, the lack of toughness leads to difficulty in removing and is single in function, which cannot effectively promote wound healing.
The dressing matrix made of alginate contains a hemp fiber structure core to increase toughness and attach microcapsules containing active probiotics to the surface to form an active probiotic hydrogel.
The multiple functions of easy removal of dressings, hemostasis, antibacteriality and promoting wound healing are realized, and the material fusion method reduces the production cost.
Smart Images
Figure CN222983252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical dressings, in particular to a packing dressing for deep wound hemostasis, promoting wound healing and easy removal. Background Technique
[0002] At present, alginates such as calcium alginate are mostly used for dressings. They have good compliance, can well adapt to and adhere to the wound surface, are effective in controlling bleeding and do not adhere. However, they also have prominent problems, that is, they lack toughness, are easy to have residues when removed, resulting in very troublesome cleaning. At the same time, existing dressings are usually made of a single material, with single functions and no significant help in accelerating wound healing. Content of the Utility Model
[0003] In view of this, the purpose of the utility model is to propose a packing dressing for deep wounds, which not only has good functions of hemostasis, antibacterial and promoting wound healing, but also has the characteristic of being easily removed, so as to solve the problems of single function and difficult removal in the prior art.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0005] A packing dressing for deep wounds includes a dressing matrix made of alginate, characterized in that: it further includes a structural core made of hemp fiber consolidated in the dressing matrix and microcapsules consolidated on the outer surface of the dressing matrix. The structural core is arranged along the entire length direction of the dressing matrix, and the microcapsules include a capsule wall with active probiotics enclosed in its inner cavity.
[0006] Further, the dressing matrix is a cylinder, and the structural core is arranged at the center of the cylinder.
[0007] Further, a plurality of the structural cores are arranged on the concentric circles of the cylinder.
[0008] Further, the capsule wall is made of a composite of alginate and prebiotic.
[0009] Further, a plurality of the microcapsules are evenly arranged on the dressing matrix.
[0010] Further, an attachment section for increasing adhesion is arranged at one end of the structural core.
[0011] Further, a plurality of attachment balls for increasing adhesion are equidistantly arranged on the structural core.
[0012] Further, a hemostatic layer is arranged on the outer surface of the dressing matrix.
[0013] Further, it further includes a traction wire, one end of the traction wire is fixed to the structural core, and the other end extends outwards.
[0014] The utility model has the following beneficial effects:
[0015] By improving the alginate dressing, on the one hand, the alginate dressing matrix uses internal hemp fibers as the structural core, which increases the toughness of the overall traction and is conducive to the overall removal of the dressing matrix without residue. At the same time, after the alginate and hemp fibers absorb the exudate, they turn into a gel state, which can maintain a wet environment beneficial to wound healing. On the other hand, microcapsules containing active probiotics are attached to the surface of the alginate matrix. The microcapsules dissolve in water and release probiotics, forming an active probiotic hydrogel together with the dressing. Studies have shown that the active probiotic hydrogel can assist wound healing. In this way, the utility model has multiple functions such as hemostasis, antibacterial, promoting wound healing and being easy to remove. And because the utility model adopts the way of material fusion, the production cost is low and the production efficiency is high, bringing benefits to patients and having great promotion value. Brief Description of the Drawings
[0016] Figure 1 is the front view of the utility model;
[0017] Figure 2 is the top view of the utility model;
[0018] Figure 3 is the sectional view of the utility model;
[0019] Figure 4 is Figure 3 the schematic diagram of the structural core with an attachment section;
[0020] Figure 5 is Figure 3 the schematic diagram of the structural core with an attachment ball;
[0021] Figure 6 is the sectional view of the microcapsule;
[0022] Figure 7 is the front view of the utility model with a hemostatic layer and a traction line;
[0023] Figure 8 is the sectional view of the utility model with a hemostatic layer and a traction line.
[0024] Description of the Reference Numerals:
[0025] 1. Dressing matrix; 2. Structural core; 3. Microcapsule; 4. Capsule wall; 5. Active probiotic; 6. Attachment section; 7. Attachment ball; 8 - Hemostatic layer; 9 - Traction line. Detailed Description of the Preferred Embodiments
[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0028] Refer to Figure 1-8 , an embodiment provided by the present utility model: a deep wound packing dressing, including a dressing matrix 1 made of alginate, which is particularly characterized in that: it further includes a structural core 2 made of hemp fiber consolidated in the dressing matrix and microcapsules 3 consolidated on the outer surface of the dressing matrix. The structural core is arranged along the entire length of the dressing matrix, so as to traction the dressing matrix within the entire length range. When the alginate dressing matrix and hemp fiber absorb exudate and turn into a gel state, it can maintain a wet environment conducive to wound healing. The microcapsules include a capsule wall 4, the inner cavity of the capsule wall is a storage cavity, and an active probiotic 5 is enclosed in the inner cavity. The diameter of the microcapsule is usually 5-250um, and the capsule wall is made of a composite of alginate and prebiotic. When it meets water, it quickly dissolves and releases active probiotics, forming an active probiotic hydrogel together with the dressing to accelerate wound healing. The active probiotics in this embodiment can be Lactobacillus and Bifidobacterium.
[0029] Studies have shown that adding prebiotic to alginate-based capsules helps the survival of probiotics. The capsule wall of this embodiment is made of a composite material of alginate and prebiotic, thereby prolonging the survival time of probiotics.
[0030] The microcapsules of this embodiment are fixed on the dressing matrix by an adhesive, and the operation is extremely simple.
[0031] Due to the dressing matrix made of alginate in this embodiment, its shape is variable. At the beginning, the dressing matrix is a cylinder. When in use, the dressing matrix is inserted into the deep wound surface, and according to the shape of the wound surface, the dressing matrix is adjusted to a shape suitable for the cavity.
[0032] The structural core of this embodiment is arranged at the center of the cylinder. When lifted, the force is applied from the center, and the force is evenly balanced, so it is not easy to separate the structural core from the matrix.
[0033] As a further improvement of this embodiment, multiple structural cores are also arranged on the concentric circles of the cylinder, thereby further increasing the binding force with the matrix, preventing detachment, and improving stability.
[0034] As a further improvement of this embodiment, multiple microcapsules are evenly arranged on the dressing matrix, so as to cover the entire wound surface to a certain extent, making all wound surfaces in an active probiotic hydrogel environment, so that all wound surfaces can heal quickly at the same time.
[0035] As a further improvement of this embodiment, an attachment section 6 for increasing adhesion is arranged at one end of the structural core. The diameter of the attachment section is larger than that of the structural core, and it has greater adhesion. When in use, the attachment section can be arranged deep in the wound surface, so as to enhance the binding force with the matrix and further prevent detachment.
[0036] Or, another solution is that multiple attachment balls 7 for increasing adhesion are equidistantly arranged on the structural core. The attachment balls have a larger diameter than the structural core, so as to increase the adhesion with the matrix. At this time, the direction problem is no longer considered, and it is more convenient to use.
[0037] As a further improvement of this embodiment, as Figure 7 shown, a hemostatic layer 8 is arranged on the outer surface of the dressing matrix. The hemostatic layer is made of high-density sponge and has strong water absorption capacity, so as to facilitate hemostasis and keep the wound clean and dry.
[0038] As a further improvement of this embodiment, as Figure 7-8 shown, it also includes a traction wire 9. One end of the traction wire is fixed to the end of the structural core, and the other end extends outward. When the dressing is sent into the deep wound through an external catheter, such as the nasal cavity, after the catheter is withdrawn, the traction wire follows and exits, located outside the nasal cavity. When the use is completed, the dressing can be taken out through the traction wire, which is very convenient. At the same time, since the traction wire is fixed to the structural core through multiple heads, the acting force always acts on the structural core and does not directly act on the dressing matrix made of alginate, so that it will not fall off and there is no residue in the wound.
[0039] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A deep wound packing dressing, comprising a dressing base made of alginate, characterized in that: It also includes a structural core made of hemp fiber fixed in the dressing matrix and microcapsules fixed on the surface of the dressing matrix. The structural core is arranged along the entire length of the dressing matrix. The microcapsules include capsule walls whose inner cavity encloses active probiotics.
2. A deep wound packing dressing according to claim 1, characterized in that: The dressing base is a cylinder, and the structural core is arranged at the center of the cylinder.
3. A deep wound packing dressing according to claim 2, characterized in that: A plurality of structural cores are arranged on concentric circles of the cylinder.
4. A deep wound packing dressing according to claim 1, characterized in that: The capsule wall is made of alginate and prebiotics.
5. A deep wound packing dressing according to any one of claims 1 to 4, characterized in that: A plurality of microcapsules are evenly arranged on the dressing substrate.
6. A deep wound packing dressing according to any one of claims 1 to 4, characterized in that: One end of the structural core is provided with an adhesion section for increasing adhesion.
7. A deep wound packing dressing according to any one of claims 1 to 4, characterized in that: A plurality of adhesion balls for increasing adhesion are arranged equidistantly on the structural core.
8. A deep wound packing dressing according to any one of claims 1 to 4, characterized in that: A hemostatic layer is arranged on the outer surface of the dressing substrate.
9. A deep wound packing dressing according to any one of claims 1 to 4, characterized in that: It also includes a traction line, one end of which is fixed to the structural core, and the other end of which is extended outward.