Liquid absorption type medical sterile application

Abstract

The utility model discloses a liquid absorption type medical sterile application, which comprises an absorption main body assembly, a coating assembly and a sealing assembly, the absorption main body assembly consists of a top flow guide layer, a water absorption layer and a bottom flow guide layer, and the top of the water absorption layer is coated with the top flow guide layer. A top diversion layer and a bottom diversion layer which are made of wet-strength toilet paper wrap a water absorption layer which is made of a mixture of fluff pulp, polyacrylate super absorbent resin and sodium alginate to form an absorption main body of the application, percolate can be evenly conveyed in the longitudinal direction, and good liquid absorption performance is achieved; the medical application can meet the requirements of special patients with large surgical incisions, much errhysis and the like, so that the liquid absorption effect of the whole medical application is guaranteed, meanwhile, the water absorption layer is made of a high-molecular polymer material, water molecules can be coordinated and combined with hydrogen atoms and oxygen atoms in a high-molecular polymer in a hydrogen bond mode after water is absorbed, the application has the higher water absorption and water locking functions, and the medical application has the better water absorption and water locking functions. Therefore, the effects of protecting the wound surface and preventing bacteria breeding due to damp are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical protective appliances, in particular to a liquid-absorbing medical sterile dressing. Background Art

[0002] Once a wound occurs on the surface of human skin, it is very easy to cause infection and cause greater harm due to the direct contact between the wound and the air. Currently, commonly used dressings can protect the wound, prevent infection, and promote wound healing, so they are widely used. Although traditional dressings can play a certain protective role, their ability to absorb liquid is limited. For wounds with large areas, traditional dressings are easily damp and breed bacteria, creating the risk of contaminating the wound. Therefore, it is necessary to design a liquid-absorbing medical sterile dressing using a dressing with strong liquid-absorbing properties and add antibacterial materials to the materials used to make the dressing to protect the wound and prevent moisture from breeding bacteria. Utility Model Content

[0003] The utility model aims to provide a liquid-absorbing medical sterile dressing to solve the problem that the traditional dressing has limited ability to absorb liquid. For a large wound surface, the traditional dressing is easy to get wet, breed bacteria, and create the risk of contaminating the wound.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a liquid-absorbing medical sterile dressing, comprising an absorption main body component, a covering component and a closing component, wherein the absorption main body component is composed of a top guide layer, a water-absorbing layer and a bottom guide layer, the top of the water-absorbing layer is covered with the top guide layer, and the bottom of the water-absorbing layer is covered with the bottom guide layer, and the absorption main body component is arranged between the medical-grade PE film and the hydrophilic non-woven fabric in the covering component.

[0005] Preferably, the medical-grade PE film and the hydrophilic non-woven fabric are adhered to each other through a circular structural adhesive layer in a closed component.

[0006] Preferably, the covering component is composed of a water-repellent non-woven fabric, a medical-grade PE film and a hydrophilic non-woven fabric, and the bottom of the water-repellent non-woven fabric is coated with a full-coated structural adhesive layer.

[0007] Preferably, the bottom of the fully coated structural adhesive layer is adhered to the medical-grade PE film.

[0008] Preferably, the sealing component is composed of a return-shaped structural adhesive layer, a full-coated structural adhesive layer, a back adhesive layer and a release paper, and the back adhesive layer is coated on the bottom of the hydrophilic non-woven fabric.

[0009] Preferably, a release paper is adhered to the bottom of the adhesive layer.

[0010] Preferably, the top center of the release paper is attached to the hydrophilic non-woven fabric.

[0011] The liquid-absorbing medical sterile dressing provided by the utility model has the advantages that the top guide layer and the bottom guide layer made of wet-strength toilet paper cover the water-absorbing layer made of a mixture of fluff pulp, polyacrylic acid salt superabsorbent resin and sodium alginate to form the absorption body of the dressing, which can evenly transmit the exudate along the longitudinal direction and has good liquid absorption performance, and can meet the needs of special patients with large surgical incisions, heavy bleeding, etc., thereby ensuring the liquid absorption effect of the entire medical dressing. At the same time, the absorption body is a high molecular polymer. After it absorbs water, the water molecules will coordinate and combine with the hydrogen and oxygen atoms in the high molecular polymer in the form of hydrogen bonds, thereby absorbing a large amount of water molecules therein, and the force generated by the osmotic pressure difference causes the water molecules to gather firmly around it, so that the dressing has a stronger water absorption and water locking function, thereby protecting the wound surface and preventing moisture from breeding bacteria. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is an exploded view of the overall structure of the utility model;

[0014] Figure 2 It is an exploded view of part of the structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the overlapping structure in the utility model.

[0016] In the figure: 1. Absorbent main component; 2. Coating component; 3. Closing component; 11. Top guide layer; 12. Water absorption layer; 13. Bottom guide layer; 21. Water-repellent non-woven fabric; 22. Medical-grade PE film; 23. Hydrophilic non-woven fabric; 31. Reusable structural adhesive layer; 32. Full-coated structural adhesive layer; 33. Back adhesive layer; 34. Release paper. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of 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.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-3The utility model provides an embodiment: a liquid-absorbing medical sterile dressing, comprising an absorption main body component 1, a covering component 2 and a closing component 3, the absorption main body component 1 is composed of a top guide layer 11, a water-absorbing layer 12 and a bottom guide layer 13, the top of the water-absorbing layer 12 is coated with the top guide layer 11, and the bottom of the water-absorbing layer 12 is coated with the bottom guide layer 13, the absorption main body component 1 is arranged between a medical-grade PE film 22 and a hydrophilic non-woven fabric 23 in the covering component 2, the medical-grade PE film 22 and the hydrophilic non-woven fabric 23 are adhered to each other through a return-type structural adhesive layer 31 in the closing component 3, the covering component 2 is composed of a water-repellent non-woven fabric 21, a medical-grade PE film 22 and a hydrophilic non-woven fabric 23, the bottom of the water-repellent non-woven fabric 21 is coated with a fully coated structural adhesive layer 32, and the bottom of the fully coated structural adhesive layer 32 Adhere to the medical grade PE film 22, the closure component 3 is composed of a return type structural adhesive layer 31, a full coating structural adhesive layer 32, a back adhesive layer 33 and a release paper 34, the back adhesive layer 33 is coated on the bottom of the hydrophilic non-woven fabric 23, the bottom of the back adhesive layer 33 is adhered with a release paper 34, and the top center of the release paper 34 is attached to the hydrophilic non-woven fabric 23; wherein the water-absorbing layer 12 is composed of fluff pulp, polyacrylic acid salt super absorbent resin and sodium alginate, and the mass ratio of fluff pulp, polyacrylic acid salt super absorbent resin and sodium alginate is 50:47:3, the fiber length of fluff pulp is 1.8-2.3mm, the particle size of sodium polyacrylate powder is 200-300 mesh, the fiber length of crushed sodium alginate is between 2-3mm, and the thickness of the absorption main component 1 ranges from 1.5 to 2.5mm, and the absorption main body component 1 is provided with a patterned embossed structure at intervals; the absorption main body component 1 is a dressing with strong liquid absorption performance, and antibacterial materials are added to the materials for making the dressing. Compared with traditional dressings, its liquid absorption performance has been greatly improved. The polymer material in the dressing has the mechanism of hydrophilic water locking, absorption of exudate and blood, antibacterial and anti-inflammatory, and promotion of wound healing. After the water-absorbing layer 12 of the polymer material encounters water, two oxygen atoms therein will respectively combine with H atoms in two water molecules in the form of hydrogen bonds. In addition, three H atoms in the polymer monomer will also respectively combine with oxygen atoms in three water molecules in the form of hydrogen bonds, combining the two highly hydrophilic substances together, so that this dressing naturally has a strong hydrophilic characteristic. The polymer that can absorb a large amount of water to swell and keep the water from flowing out can absorb water equivalent to more than 100 times its own volume; after the absorption main body component 1 comes into contact with water, water molecules infiltrate into the polymer through capillary action and diffusion. The metal ions in the carbon chain are ionized in the water and dissociated into metal ions. Due to the charge repulsion between the same elements on the carbon chain, the spatial structure of the carbon chain is rotated and twisted, and a large amount of space that can accommodate water molecules appears. The carbon chain structure that accommodates a large number of water molecules stretches and swells. Due to the requirement of electrical neutrality, the metal ions will be evenly dispersed around the negatively charged O atoms, which makes the concentration difference between the metal ions in the surrounding aqueous solution and the surrounding of each polymer. The osmotic pressure of the metal ions in the aqueous solution close to the acid root is high. Under the action of the osmotic pressure, the water molecules around the acid root further gather around the polymer root, thus forming a hydrogel of the polymer. Traditional foam dressings can absorb water, which is achieved through the spatial pore structure of the foam dressing. The absorbed water is stored in the pore space structure, but it cannot be locked. Once it is subjected to a certain pressure, the water stored in it will be squeezed out again.

[0020] When the water-absorbing layer 12 of the polymer dressing absorbs water, the water molecules will be coordinated and combined with the hydrogen and oxygen atoms in the polymer in the form of hydrogen bonds. This binding force is much greater than the van der Waals force, thereby absorbing a large amount of water molecules.

[0021] Specifically, the utility model comprises a water-repellent non-woven fabric 21 and a medical-grade PE film 22 connected by a fully coated structural adhesive layer 32 and a hydrophilic non-woven fabric 23 to cover the absorbent main component 1. The bottom of the hydrophilic non-woven fabric 23 is adhered to a release paper 34 through a back adhesive layer 33, and a superimposed structure of the water-repellent non-woven fabric 21, the medical-grade PE film 22, the top guide layer 11, the water-absorbing layer 12, the bottom guide layer 13, the hydrophilic non-woven fabric 23 and the release paper 34 is formed from top to bottom. When in use, the release paper 34 is torn off for application; the top guide layer 11 and the bottom guide layer 13 prepared by wet-strength toilet paper are coated with a mixture of fluff pulp, polyacrylic acid salt superabsorbent resin and sodium alginate. The water-absorbing layer 12 prepared from the material constitutes the absorption body of the dressing, which can evenly transfer the exudate in the longitudinal direction and has good liquid absorption performance. It can meet the needs of special patients with large surgical incisions and heavy bleeding, thereby ensuring the liquid absorption effect of the entire medical dressing. At the same time, the absorption body is a high molecular polymer. After it absorbs water, the water molecules will coordinate and combine with the hydrogen and oxygen atoms in the high molecular polymer in the form of hydrogen bonds, thereby absorbing a large amount of water molecules. In addition, the force generated by the osmotic pressure difference makes the water molecules firmly gather around it, so that the dressing has a stronger water absorption and water locking function, thereby protecting the wound surface and preventing moisture from breeding bacteria.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A liquid-absorbing medical sterile dressing, comprising an absorbing main body component (1), a covering component (2) and a sealing component (3), characterized in that: The absorbent main body component (1) is composed of a top guide layer (11), a water-absorbing layer (12) and a bottom guide layer (13); the top of the water-absorbing layer (12) is coated with the top guide layer (11), and the bottom of the water-absorbing layer (12) is coated with the bottom guide layer (13); the absorbent main body component (1) is arranged between a medical-grade PE film (22) and a hydrophilic non-woven fabric (23) in the coating component (2).

2. The liquid-absorbing medical sterile dressing according to claim 1, characterized in that: The medical-grade PE film (22) and the hydrophilic non-woven fabric (23) are adhered to each other via a resilient structural adhesive layer (31) in the sealing component (3).

3. The liquid-absorbing medical sterile dressing according to claim 1, characterized in that: The coating component (2) is composed of a water-repellent non-woven fabric (21), a medical-grade PE film (22) and a hydrophilic non-woven fabric (23), and the bottom of the water-repellent non-woven fabric (21) is coated with a fully coated structural adhesive layer (32).

4. The liquid-absorbing medical sterile dressing according to claim 3, characterized in that: The bottom of the fully coated structural adhesive layer (32) is adhered to the medical-grade PE film (22).

5. The liquid-absorbing medical sterile dressing according to claim 1, characterized in that: The sealing component (3) is composed of a return-shaped structural adhesive layer (31), a full-coated structural adhesive layer (32), a back adhesive layer (33) and a release paper (34), and the back adhesive layer (33) is coated on the bottom of the hydrophilic non-woven fabric (23).

6. The liquid-absorbing medical sterile dressing according to claim 5, characterized in that: A release paper (34) is adhered to the bottom of the adhesive layer (33).

7. The liquid-absorbing medical sterile dressing according to claim 6, characterized in that: The top center of the release paper (34) is attached to the hydrophilic non-woven fabric (23).

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